{"name":"印花工题库","level":"初级 / 中级 / 高级 / 技师","org":"人力资源和社会保障部门","count":300,"questions":[{"id":1,"type":"single","stem":"平网印花机刮印时，刮刀压力过大最可能直接造成哪种印花疵病","options":["花纹渗色模糊","刮印不匀露底","网框变形跑花","色浆透网量不足"],"answer":[0],"explanation":"刮刀压力过大使色浆过量透过网孔并向花纹边缘扩散，造成渗色模糊，故正确项为A。B项刮印不匀露底通常是压力过小或刮刀磨损所致。C项网框变形跑花多因网框张力不足或固定不良。D项色浆透网量不足与压力过大相反，属于压力偏小的表现。","tier":"基础"},{"id":2,"type":"single","stem":"圆网印花机运行时发现印花图案出现规律性横向错位，最应先检查的部位是","options":["圆网与导带的同步传动","色浆的粘度是否偏高","刮刀的角度是否过大","烘房温度是否偏低"],"answer":[0],"explanation":"规律性横向错位说明各圆网之间或圆网与导带之间同步关系被破坏，应首先检查同步传动，故正确项为A。B项色浆粘度偏高主要影响透网量和花纹清晰度而非规律错位。C项刮刀角度过大影响的是给浆量和色泽深浅。D项烘房温度偏低影响固色和手感，与套印错位无直接关系。","tier":"挑战"},{"id":3,"type":"single","stem":"平网印花中，网框绷网后张力不足，印花时最可能出现的现象是","options":["花纹边缘出现重影","色浆在网内干结","刮刀弹跳刮不匀","网孔堵塞透浆差"],"answer":[0],"explanation":"网框张力不足时网面回弹差，刮印后网面离开织物迟缓，花纹边缘易出现重影，故正确项为A。B项色浆干结与刮印间歇时间长、浆料挥发有关。C项刮刀弹跳多与刮刀硬度、角度或网面平整度有关。D项网孔堵塞与清洗不彻底或色浆结皮有关。","tier":"基础"},{"id":4,"type":"single","stem":"圆网印花机更换圆网后，正式印花前必须先进行的操作是","options":["对花并试印小样","升高烘房温度","加大刮刀压力","调高导带车速"],"answer":[0],"explanation":"更换圆网后各网筒相对位置改变，必须先对花并试印小样确认套准，故正确项为A。B项烘房升温与对花无关，且应在工艺确认后进行。C项加大刮刀压力不能解决套准问题。D项调高车速会加剧对花偏差，不是换网后的首要操作。","tier":"基础"},{"id":5,"type":"single","stem":"印花色浆在使用过程中粘度逐渐升高，最可能的原因是","options":["浆料中水分挥发","浆料温度突然降低","刮刀压力持续增大","圆网目数选择偏大"],"answer":[0],"explanation":"色浆在网内和浆桶中暴露于空气，水分挥发会使粘度逐渐升高，故正确项为A。B项温度降低虽会使部分浆料变稠，但通常不是使用过程中粘度渐升的主因。C项刮刀压力属于机械参数，不改变浆料粘度。D项圆网目数影响透浆量，不改变色浆本身粘度。","tier":"基础"},{"id":6,"type":"single","stem":"平网印花机导带上的贴布胶在使用一段时间后粘性下降，正确的处理方式是","options":["清洗导带后重新均匀上胶","直接在旧胶面上补涂新胶","用清水冲洗导带表面继续用","加大贴布压力压紧织物"],"answer":[0],"explanation":"贴布胶粘性下降多因胶面沾附纤维和浆料，应先清洗导带再重新均匀上胶，故正确项为A。B项直接补涂会造成胶层厚薄不匀、贴布不牢。C项清水冲洗不能去除胶面油污和浆料残留。D项加大贴布压力不能恢复胶层粘性，还可能压坏织物。","tier":"基础"},{"id":7,"type":"single","stem":"圆网印花中，圆网内的刮刀与圆网内壁接触过紧，最可能导致的后果是","options":["圆网磨损加快并出现印痕","色浆透网量明显增大","花纹套印精度提高","圆网转速自动下降"],"answer":[0],"explanation":"刮刀与圆网内壁接触过紧会加剧摩擦，使圆网磨损加快并可能产生印痕，故正确项为A。B项透网量主要受刮刀压力、角度和网孔影响，接触过紧未必增大透浆量。C项套印精度与对花系统有关，与刮刀接触松紧无直接关系。D项圆网转速由传动控制，不会因刮刀接触紧而自动下降。","tier":"进阶"},{"id":8,"type":"single","stem":"印花车间发现某批印花布花纹颜色比标准样浅，在排除色浆浓度问题后，应优先检查的参数是","options":["刮刀压力和刮印速度","圆网的目数规格","织物的克重和幅宽","烘房的排风量"],"answer":[0],"explanation":"排除色浆浓度后，颜色偏浅多与刮印时透浆量不足有关，刮刀压力和刮印速度是直接影响透浆量的参数，故正确项为A。B项圆网目数在工艺确定后一般不变，且属于设备配置而非运行参数。C项织物克重幅宽是来布条件，不直接决定颜色深浅。D项烘房排风量影响固色和能耗，不直接改变印花色泽。","tier":"挑战"},{"id":9,"type":"single","stem":"平网印花机在印花过程中突然停电，恢复供电后正确的处置顺序是","options":["先清理网内色浆再重新对花试印","直接开机继续印花并观察效果","先升高烘房温度再启动印花","先加大刮刀压力再启动印花"],"answer":[0],"explanation":"停电期间网内色浆可能干结、织物停留易沾污，恢复供电后应先清理网内色浆再重新对花试印，故正确项为A。B项直接开机可能因色浆干结和套准偏移产生大量疵布。C项烘房升温与恢复印花无先后逻辑关系。D项加大刮刀压力不能解决停电造成的色浆干结和套准问题。","tier":"挑战"},{"id":10,"type":"single","stem":"圆网印花机在正常印花时，发现布面上出现沿布长方向的连续细条状露底，最可能的原因是","options":["圆网网孔局部堵塞","刮刀压力整体偏大","色浆粘度整体偏低","导带贴布胶过粘"],"answer":[0],"explanation":"沿布长方向连续细条状露底说明该位置透浆不足，常见原因是圆网网孔局部堵塞，故正确项为A。B项刮刀压力整体偏大会使颜色加深而非露底。C项色浆粘度偏低易造成渗色。D项贴布胶过粘影响的是贴布和起布，不造成条状露底。","tier":"挑战"},{"id":11,"type":"single","stem":"印花工在调制色浆时，将两种不同厂家的增稠剂直接混合使用，最可能出现的后果是","options":["色浆出现凝胶或分层","色浆颜色明显变深","色浆粘度立即下降","色浆干燥速度加快"],"answer":[0],"explanation":"不同厂家增稠剂化学成分和离子性可能不同，直接混合易发生反应导致凝胶或分层，故正确项为A。B项颜色变化与增稠剂混合无直接关系。C项混合后粘度通常升高或凝胶，不会立即下降。D项干燥速度主要受浆料含水和环境条件影响，与增稠剂混用无直接对应关系。","tier":"进阶"},{"id":12,"type":"single","stem":"平网印花开机前对网框进行对花检查时，若发现相邻两网框的图案在织物上出现约1mm的横向错位，正确的调整方式是","options":["微调网框在网夹上的横向位置后重新对花","加大刮刀压力使色浆横向扩散掩盖错位","降低印花车速让色浆自然渗开对齐图案","提高磁棒吸力使网框贴紧导带消除错位"],"answer":[0],"explanation":"知识点是平网印花对花调整。网框横向错位应通过网夹横向微调网框位置重新对花，这是标准做法；加大刮刀压力只会改变给浆量、使花纹变粗，不能真正对齐；降速只影响渗透和产量，不会移动图案位置；磁棒吸力影响给浆均匀性，与网框横向位置无关。","tier":"挑战"},{"id":13,"type":"single","stem":"圆网印花机运行中，某只圆网内刮刀（或磁棒）给浆量明显偏少、织物上该色花纹发淡，但网面无堵塞，最可能的原因是","options":["该圆网内色浆液位过低或黏度过高","该圆网与导带之间的磁力过大","该圆网的花回尺寸选得偏小","该圆网的目数选得偏粗"],"answer":[0],"explanation":"知识点是圆网印花给浆量不足的排查。网面无堵塞而花纹发淡，常见原因是网内色浆液位低或黏度偏高导致流动性差、给浆不足；磁力过大反而会使色浆被刮得更净、花纹更淡但这不是主因，且磁力大通常不是液位问题；花回尺寸决定圆周重复长度，与给浆量无关；目数偏粗只会使给浆量偏大而不是偏小。","tier":"进阶"},{"id":14,"type":"single","stem":"印花车间使用平网印花机印制精细线条花型时，为保证线条清晰不渗边，色浆黏度应控制的方向是","options":["适当偏高并配合较快的刮印速度","适当偏低并配合较慢的刮印速度","适当偏高并配合较慢的刮印速度","适当偏低并配合较快的刮印速度"],"answer":[0],"explanation":"知识点是色浆黏度与刮印速度对清晰度的影响。精细线条要防渗边，色浆黏度适当偏高、刮印速度较快可使色浆少向两侧扩散，线条清晰；黏度偏低易渗边；黏度偏高但速度慢会使色浆在网孔停留时间长而渗开；黏度偏低加快速仍因流动性强而渗边。","tier":"进阶"},{"id":15,"type":"single","stem":"圆网印花机更换圆网后，发现织物上出现沿纬向周期性重复的深浅横档，且横档间距与圆网周长一致，应优先检查","options":["圆网两端闷头密封是否漏浆","导带水洗后的烘干程度","磁棒直径是否与网内径匹配","印花后织物的堆置时间"],"answer":[0],"explanation":"知识点是圆网印花周期性疵点的判断。横档间距等于圆网周长，说明缺陷随圆网每转一周出现一次，最常见是圆网端部闷头密封不良造成漏浆或给浆不均；导带烘干影响的是沾污和反面效果，不是周期横档；磁棒直径不匹配会影响整体给浆均匀性但不形成与周长同周期的横档；堆置时间影响固色和发色，与周期性横档无关。","tier":"挑战"},{"id":16,"type":"single","stem":"平网印花生产中，刮刀橡胶条出现缺口后继续使用，最容易在织物上造成的疵点是","options":["沿刮印方向的条状露白","花型整体颜色偏深","织物纬向规律性横档","花纹边缘整体变粗"],"answer":[0],"explanation":"知识点是刮刀缺陷与疵点对应关系。刮刀有缺口时该处刮印不到或给浆不足，会沿刮印方向形成条状露白；整体偏深是给浆过多造成，与缺口无关；纬向规律横档多与圆网或传动有关，不是平网刮刀缺口特征；花纹边缘变粗多因压力过大或黏度偏低。","tier":"进阶"},{"id":17,"type":"single","stem":"某印染厂平网印花机印花后织物进入蒸化固色，操作工发现固色后颜色普遍比标样浅，排查时首先应确认的是","options":["蒸化温度与时间是否达到工艺要求","印花刮刀的硬度是否偏软","网框的目数是否选得偏细","导带的张力是否调得过紧"],"answer":[0],"explanation":"知识点是蒸化固色对发色的影响。颜色普遍偏浅最常见是蒸化温度不足或时间不够，染料未充分固着发色；刮刀硬度影响给浆量但不属于固色环节首要排查；网框目数影响给浆和清晰度，与固色后普遍变浅关系不大；导带张力影响印花精度，不决定固色发色深浅。","tier":"挑战"},{"id":18,"type":"single","stem":"圆网印花机在印制大面积底色时，出现露底（底色不匀、有细小未印到处），下列处置中最合适的是","options":["适当降低色浆黏度并检查圆网网孔通透性","提高刮刀压力并加快印花车速","减小磁棒直径并降低磁力","增大花回尺寸并减少套色数量"],"answer":[0],"explanation":"知识点是大面积底色露底的处置。露底多因色浆流动性差或网孔部分堵塞，适当降黏并检查网孔通透是正确方向；一味提高压力加快车速会加剧给浆不匀；减小磁棒直径和磁力会减少给浆使露底更严重；花回尺寸和套色数量与露底无直接关系。","tier":"挑战"},{"id":19,"type":"single","stem":"圆网印花机印花过程中圆网内色浆出现起泡增多，最可能引起织物上的疵点是","options":["色点或色斑","纬向规律横档","经向条花","花型整体缩小"],"answer":[0],"explanation":"知识点是色浆起泡对印花质量的影响。色浆起泡后气泡破裂会在织物上形成色点或色斑；纬向规律横档多与圆网或传动相关；经向条花多与刮刀缺口或网孔堵塞相关；花型整体缩小与圆网制网或张力有关，与起泡无关。","tier":"基础"},{"id":20,"type":"single","stem":"印花车间接到一批需先印浅色底再叠印深色花的订单，操作工在平网印花机上安排网框顺序时，正确的原则是","options":["先印浅色后印深色，并考虑叠印处的遮盖关系","先印深色后印浅色，以减少浅色被污染","深浅色同时印，靠刮刀压力控制叠印效果","先印面积大的网框后印面积小的网框"],"answer":[0],"explanation":"知识点是平网印花套色顺序原则。一般先印浅色后印深色，便于深色叠印遮盖并保证色泽；先深后浅会使浅色覆盖深色导致颜色发花；同时印无法控制叠印次序；按面积大小排序不是决定套色顺序的主要原则，关键是色泽叠印关系。","tier":"进阶"},{"id":21,"type":"single","stem":"平网印花机刮印时，刮刀压力过大会直接导致印花织物出现下列哪种疵病","options":["花纹渗色边缘不清","花型轮廓清晰度提高","色浆透网量适当减少","网框抬升速度明显加快"],"answer":[0],"explanation":"知识点：平网刮印压力与给浆量的关系。刮刀压力过大会使色浆过量透过网孔并向花纹边缘扩散，造成渗色、边缘不清。压力适当增大虽有利于提高轮廓清晰度，但过大反而渗色，故第二项错；压力增大会使透网量增加而非减少，第三项错；网框抬升由机械程序控制，与刮刀压力无直接因果关系，第四项错。","tier":"进阶"},{"id":22,"type":"single","stem":"圆网印花机运行中，圆网内刮刀与圆网内壁的接触位置通常应调整在","options":["圆网最低点正下方","圆网最低点略偏前","圆网最高点正上方","圆网中心水平线上"],"answer":[1],"explanation":"知识点：圆网刮印点位置。刮刀接触点应在圆网最低点略偏前（顺转动方向），使色浆在刮印区受压后及时脱离织物，减少拖浆。最低点正下方会使色浆在刮印区停留过久易渗色，第一项错；最高点无法与织物接触，第三项错；中心水平线处色浆尚未到达刮印区，第四项错。","tier":"进阶"},{"id":23,"type":"single","stem":"平网印花中，网框升降与刮刀刮印的配合顺序，正确的动作是","options":["网框下降贴布后刮刀刮印","刮刀先刮印网框再下降","网框下降同时刮刀已刮完","刮刀抬起后网框才开始下降"],"answer":[0],"explanation":"知识点：平网印花机刮印程序。正确顺序是网框下降贴紧织物、刮刀刮印、刮刀抬起、网框上升移位。刮刀先刮印网框再下降会导致色浆印在网框未贴布处造成拖浆，第二项错；网框下降同时刮刀已刮完则刮印时网框未贴布，第三项错；刮刀抬起后网框才开始下降说明刮印发生在网框上升位，第四项错。","tier":"基础"},{"id":24,"type":"single","stem":"圆网印花机更换圆网后，开机前必须检查圆网与下列哪个部件的间隙以防漏浆","options":["圆网与刮刀之间的压力","圆网与给浆管之间的角度","圆网与承压辊之间的压力","圆网与网头之间的密封"],"answer":[3],"explanation":"知识点：圆网安装密封检查。圆网两端网头密封不良会从端部漏浆，换网后必须检查网头密封。刮刀压力影响给浆量而非漏浆，第一项错；给浆管角度影响供浆均匀性，第二项错；圆网与承压辊压力影响印花效果和网变形，第三项错。","tier":"进阶"},{"id":25,"type":"single","stem":"印花色浆在刮印过程中出现堵网，下列处理方式中正确的是","options":["加大刮刀压力继续刮印","停机用清水冲洗网孔","在色浆中直接加原糊稀释","降低刮印速度继续刮印"],"answer":[1],"explanation":"知识点：堵网的现场处置。堵网应停机清洗网孔，去除堵塞物后恢复。加大压力会加剧网孔堵塞甚至破网，第一项错；直接加原糊只能降低色浆粘度，不能清除已堵物，第三项错；降低刮印速度不能解决网孔堵塞，第四项错。","tier":"基础"},{"id":26,"type":"single","stem":"平网印花中，同一花型相邻两网框之间出现露白，最可能的原因是","options":["刮刀压力偏大","网框对花不准","色浆粘度偏低","承压辊温度偏高"],"answer":[1],"explanation":"知识点：平网印花对花与露白的关系。相邻网框对花不准会使两色衔接处出现露白。刮刀压力偏大多引起渗色，第一项错；色浆粘度偏低多引起渗色和花纹扩大，第三项错；承压辊温度偏高影响得色量而非对花，第四项错。","tier":"基础"},{"id":27,"type":"single","stem":"圆网印花机刮印时色浆从圆网两端向外甩出，下列排查方向中最先应检查的是","options":["圆网内刮刀压力是否偏小","圆网转速是否偏慢","圆网网头密封是否失效","色浆粘度是否偏高"],"answer":[2],"explanation":"知识点：圆网端部甩浆原因。色浆从两端甩出多因网头密封失效或网头松动。刮刀压力偏小影响给浆量，第一项错；圆网转速偏慢不会造成端部甩浆，第二项错；色浆粘度偏高反而减少甩浆，第四项错。","tier":"进阶"},{"id":28,"type":"single","stem":"平网印花机在刮印过程中突然出现刮刀卡住不能移动，现场操作人员正确的下一步处置是","options":["立即加大气压强行推动刮刀","停机断电后检查导轨与传动","继续运行让刮刀自行恢复","拆下刮刀直接用手推拉试验"],"answer":[1],"explanation":"知识点：设备异常停机处置。刮刀卡住应先停机断电再检查导轨、传动部位，防止扩大故障和伤人。强行加大气压可能损坏传动件，第一项错；继续运行会加剧卡阻，第三项错；未断电拆刀用手推拉有夹伤风险，第四项错。","tier":"挑战"},{"id":29,"type":"single","stem":"印花色浆的粘度对印花质量影响很大，圆网印花中色浆粘度过低时最易出现的疵病是","options":["花纹渗色边缘不清","花纹露底缺浆","网孔堵塞加重","色浆透网量不足"],"answer":[0],"explanation":"知识点：色浆粘度与印花疵病。粘度过低色浆流动性大，易向花纹外扩散造成渗色、边缘不清。露底缺浆多因粘度过高透网差，第二项错；网孔堵塞加重多因色浆粘度高或颗粒粗，第三项错；透网量不足多因粘度过高，第四项错。","tier":"基础"},{"id":30,"type":"single","stem":"圆网印花机在印花过程中发现织物上花纹逐渐变浅，色浆供应正常，最应先检查的环节是","options":["圆网内刮刀压力是否逐渐变小","圆网网孔是否逐渐堵塞","承压辊压力是否逐渐增大","印花车速是否逐渐加快"],"answer":[1],"explanation":"知识点：印花花纹变浅的渐进性原因。色浆供应正常而花纹逐渐变浅，多因网孔逐渐堵塞使透浆量减少。刮刀压力逐渐变小的可能性较小且应有波动，第一项错；承压辊压力增大会使花纹加深，第三项错；车速加快影响得色但通常表现为整体变浅而非渐进堵塞特征，第四项错。","tier":"挑战"},{"id":31,"type":"single","stem":"平网印花机刮印时，刮刀角度偏大（过陡）最可能直接导致的花型缺陷是","options":["花型色泽偏深且边缘清晰","花型得色偏浅且露底","网框内色浆消耗速度明显变慢","印花后织物上出现规律性刀线"],"answer":[1],"explanation":"知识点：平网刮印角度与给浆量的关系。刮刀角度越大，色浆被刮过的量越少，透网量下降，故得色偏浅甚至露底，B正确。A方向相反，角度大不会色泽更深；C角度大刮浆快，色浆消耗通常不会变慢；D规律性刀线多与刮刀缺口、网框损伤有关，与角度大无直接因果。","tier":"进阶"},{"id":32,"type":"single","stem":"圆网印花机运行中，某只圆网的花型出现沿圆周方向连续、间距固定的细白条，其余网筒正常，优先检查的部位是","options":["该圆网内壁是否粘附色浆结块","该圆网的镍网目数与花型是否匹配","该圆网对应的磁棒磁场强度是否均匀","该圆网下方的承压辊压力是否过大"],"answer":[0],"explanation":"知识点：圆网印花规律性白条的排查。圆网内壁粘附色浆结块会周期性阻挡色浆透网，形成圆周方向等间距白条，A正确。B目数不匹配影响的是整体得色和清晰度而非等间距白条；C磁场不均会造成整只网给浆不匀而非固定间距条纹；D压力过大导致的是得色偏浅或渗浆，不形成固定间距白条。","tier":"进阶"},{"id":33,"type":"single","stem":"平网印花机对花时发现同一色位的前后网框图案错位约半个花回，最合理的调整操作是","options":["调整该网框的横向对花螺栓","调整该网框的纵向对花螺栓","调整印花导带的运行张力","更换该色位的刮刀硬度"],"answer":[1],"explanation":"知识点：平网对花机构的方向对应关系。前后错位即纵向（走布方向）偏差，应调纵向对花螺栓，B正确。A横向螺栓解决左右错位；C导带张力影响整体张力稳定而非单色位前后错位；D刮刀硬度影响给浆均匀性，与对花位置无关。","tier":"挑战"},{"id":34,"type":"single","stem":"活性染料印花后汽蒸固色，若汽蒸箱内蒸汽含空气过多，对发色的主要影响是","options":["染料固色率下降、色泽偏浅","染料固色率上升、色泽偏深","花型轮廓渗化、边缘模糊","织物上出现明显的水渍印"],"answer":[0],"explanation":"知识点：汽蒸固色的气氛要求。活性染料汽蒸固色需在饱和蒸汽、少氧条件下进行，空气过多会降低固色率使色泽偏浅，A正确。B方向相反；C渗化多与给浆量、糊料性能有关；D水渍印多与汽蒸后滴水或烘干不匀有关，与含空气量无直接因果。","tier":"进阶"},{"id":35,"type":"single","stem":"圆网印花机更换新圆网后，正式印花前先要进行的操作是","options":["直接升压到工作压力试印","先低速空转并检查网面有无破损渗漏","先把所有色位对花螺栓锁紧","先向网内注满色浆静置十分钟"],"answer":[1],"explanation":"知识点：新圆网装机后的检查程序。新网须先低速空转检查网面破损、渗漏及转动是否平稳，再投入生产，B正确。A未检查直接升压易造成批量疵布；C对花螺栓应在对花完成后锁紧，不是新网装好就先锁；D静置十分钟与检查网面无关且不解决渗漏隐患。","tier":"基础"},{"id":36,"type":"single","stem":"印花色浆中糊料用量偏少时，印花织物最常见的表现是","options":["花型轮廓渗化、边缘发毛","花型得色明显偏深","花型出现规律性缺浆白点","花型表面出现明显龟裂"],"answer":[0],"explanation":"知识点：糊料用量与色浆流变性的关系。糊料少则色浆粘度低、流动性大，印后易渗化，A正确。B得色主要受染料浓度和给浆量影响；C规律性白点多与网孔堵塞或刮刀缺口有关；D表面龟裂多与糊料过多、色浆过稠有关，方向相反。","tier":"基础"},{"id":37,"type":"single","stem":"圆网印花机运行中磁棒突然发出异常撞击声且该色位出现无浆，正确的下一步处置是","options":["立即停机检查磁棒与圆网内壁是否卡入异物","继续运行并加大磁棒压力观察变化","仅关闭该色位色浆泵继续生产","降速运行到该色位花型印完再处理"],"answer":[0],"explanation":"知识点：磁棒异常声响与无浆的应急判断。异常撞击声加无浆说明磁棒或网内可能卡入异物、磁棒损坏，应立即停机检查，A正确。B加大压力可能加剧损伤并产生大量疵布；C仅关泵不能消除磁棒撞击且该色位持续缺花；D带病运行会扩大设备损伤和疵布量。","tier":"挑战"},{"id":38,"type":"single","stem":"涂料印花后焙烘不足，对成品牢度最直接的影响是","options":["耐摩擦色牢度下降","织物手感明显变硬","花型轮廓渗化","印花处出现规律性白点"],"answer":[0],"explanation":"知识点：涂料印花焙烘与粘合剂成膜的关系。焙烘不足使粘合剂成膜不充分，耐摩擦色牢度下降，A正确。B手感变硬多与粘合剂用量过多有关；C渗化与糊料和给浆量相关；D规律性白点多与网孔堵塞、刮刀缺口相关。","tier":"基础"},{"id":39,"type":"single","stem":"印花车间发现某批织物印花后花型颜色比标样明显偏黄，色浆配方和工艺参数均未变动，应优先排查的环节是","options":["半制品前处理是否退浆不净或带碱","圆网目数是否选得比标样时更细","印花导带速度是否比标样时更快","刮刀角度是否比标样时更陡"],"answer":[0],"explanation":"知识点：印花色光变化的原料性因素。配方工艺未变而色光偏黄，首先查半制品前处理退浆、带碱等影响染料上染的因素，A正确。B目数变细影响得色深浅和清晰度而非单纯偏黄；C导带速度快影响固色和烘干，不单独造成色光偏黄；D角度陡造成得色偏浅，不造成色光偏移。","tier":"挑战"},{"id":40,"type":"single","stem":"平网印花机刮印时，刮刀压力过大会直接导致印花出现哪种疵病","options":["花纹边缘渗色模糊","花型颜色偏浅","网框与台板间漏浆","刮印后织物上浆量不足"],"answer":[0],"explanation":"知识点是平网刮印压力与印浆转移的关系。压力过大时浆料被挤压向花纹边缘扩散，造成渗色模糊；压力偏小或刮刀角度过小才会造成颜色偏浅；网框与台板间漏浆属于贴布不牢或网框变形问题；上浆量不足与浆料黏度低或刮印次数少有关。","tier":"基础"},{"id":41,"type":"single","stem":"圆网印花机运行中，圆网内的刮浆刀与圆网内壁之间应保持什么关系","options":["刮浆刀始终轻压内壁形成滚动接触","刮浆刀与内壁留出均匀间隙不接触","刮浆刀仅在花纹处压紧内壁","刮浆刀随车速提高逐步加大压紧力"],"answer":[0],"explanation":"知识点是圆网刮浆刀的工作状态。圆网印花依靠刮浆刀轻压圆网内壁，把浆料从网孔压出，压力需均匀稳定；留间隙则浆料压不出去；只在花纹处压紧无法实现连续印花；随车速提高加大压紧力会导致网孔变形和渗色。","tier":"进阶"},{"id":42,"type":"single","stem":"印花色浆中尿素的主要作用是什么","options":["促进染料溶解并帮助纤维膨化上染","提高色浆的黏稠度防止流挂","加快色浆在网孔中的干燥速度","降低色浆表面张力减少泡沫"],"answer":[0],"explanation":"知识点是印花色浆助剂功能。尿素能助溶染料并使纤维膨化，有利于染料向纤维内部扩散固着；提高黏稠度靠增稠剂；加快干燥靠挥发性组分或工艺条件；降低表面张力减少泡沫靠消泡剂。","tier":"基础"},{"id":43,"type":"single","stem":"平网印花中，网框上的花纹出现局部缺浆露白，最先应检查的环节是","options":["网孔是否被浆皮或杂质堵塞","刮刀硬度是否偏软","台板温度是否偏高","色浆黏度是否偏低"],"answer":[0],"explanation":"知识点是印花缺浆疵病的排查顺序。局部缺浆露白多为网孔堵塞或浆皮残留所致，应先检查网孔通透性；刮刀偏软一般造成颜色不匀而非局部露白；台板温度偏高影响固色；色浆黏度偏低易渗色而非缺浆。","tier":"进阶"},{"id":44,"type":"single","stem":"圆网印花机在更换花色品种时，对圆网清洗后还应重点检查的项目是","options":["网孔是否通透及网端密封条是否完好","刮浆刀压力是否已调到最大","印花导带是否已完全张紧","烘房温度是否已升到工艺值"],"answer":[0],"explanation":"知识点是换品种时的设备检查。清洗后必须确认网孔无残留浆皮、网端密封条无破损，否则会造成缺浆或漏浆；刮刀压力调到最大会损伤网网；导带张紧和烘房升温属于开机前常规准备，不是换品种清洗后的重点检查项。","tier":"进阶"},{"id":45,"type":"single","stem":"活性染料印花后汽蒸固色的主要目的是什么","options":["使染料在湿热条件下与纤维发生固着反应","使色浆中的水分快速蒸发定型","使织物表面形成一层保护膜","使未固着的染料提前水解洗除"],"answer":[0],"explanation":"知识点是活性染料印花固色原理。汽蒸提供湿热条件，使活性染料与纤维素纤维发生共价结合而固着；水分蒸发定型是烘干的作用；表面保护膜不是印花工序目的；未固着染料的水解洗除发生在后续皂洗，不是汽蒸的目的。","tier":"基础"},{"id":46,"type":"single","stem":"印花导带在使用一段时间后表面出现局部凹陷，对印花质量最可能造成的影响是","options":["对应位置花型出现变形或重影","整幅织物颜色普遍偏深","色浆在导带上大面积流挂","圆网转速无法调节"],"answer":[0],"explanation":"知识点是印花导带平整度对印花的影响。导带局部凹陷会使该处织物承压不均，造成花型变形或重影；颜色普遍偏深与浆料浓度或刮印量有关；大面积流挂与浆料黏度或刮刀状态有关；圆网转速由传动系统控制，与导带凹陷无关。","tier":"进阶"},{"id":47,"type":"single","stem":"某印花车间平网印花后发现花型轮廓处有细密锯齿，下列处置中最合理的是","options":["检查网框张力并适当提高刮刀角度","直接加大刮印压力至最大","提高色浆黏度并减少刮印次数","降低台板温度并加快贴布速度"],"answer":[0],"explanation":"知识点是花型轮廓锯齿的成因与处置。锯齿多与网框张力不足或刮刀角度偏小有关，应先检查张力并适当调整刮刀角度；直接加大压力至最大会加重渗色；提高黏度减少刮印次数不能改善轮廓；降温和加快贴布与轮廓锯齿无直接关系。","tier":"挑战"},{"id":48,"type":"single","stem":"平网印花生产中，网框内刮印后提起网框的瞬间，织物上出现规律性鱼鳞状色点，最可能的原因是","options":["刮刀压力偏大且刮印速度偏慢","网框回位速度过快导致色浆甩溅","色浆粘度偏低且网距设置偏小","网框起框时离网速度过慢造成拖浆"],"answer":[3],"explanation":"知识点为平网印花起框离网速度对印花质量的影响。正确项：起框离网速度过慢时，网框在织物上停留时间长，发生拖浆或色浆回渗，形成鱼鳞状色点。错误项：刮刀压力偏大速度偏慢主要造成色浆渗透过度、花纹模糊，不是鱼鳞状色点；网框回位过快甩溅通常产生散布色点，不呈规律鱼鳞状；粘度偏低网距偏小易造成渗网和花纹扩大，与起框拖浆特征不同。","tier":"进阶"},{"id":49,"type":"single","stem":"圆网印花机运行中，某一圆网的花纹连续出现纵向未印上色的白条，其他圆网印花正常，最应优先检查的是","options":["该圆网内刮刀压力是否偏小","该圆网网孔是否被色浆堵塞","印花导带张力是否偏松","进布张力是否偏大"],"answer":[1],"explanation":"知识点为圆网印花纵向白条的故障定位。正确项：单只圆网连续纵向白条、其他圆网正常，说明问题在该圆网本身，网孔堵塞是常见原因，应优先检查并清洗网孔。错误项：刮刀压力偏小一般导致整幅色浅而非局部纵向白条；导带张力偏松影响整体对花和走布，不会只造成某只圆网局部白条；进布张力偏大主要引起织物伸长和花型变形，不是单圆网纵向白条的主因。","tier":"进阶"},{"id":50,"type":"multi","stem":"平网印花换色时，下列哪些操作符合色浆更换与网框清洗的规范要求","options":["先回收网框内剩余色浆再清洗网框","用清水直接冲洗网框后立即加入新色浆","清洗后检查网框感光胶面无残留色浆","换色前将刮刀和刮刀架一并清洗干净","不同颜色共用同一刮刀且仅用湿布擦拭"],"answer":[0,2,3],"explanation":"知识点为平网印花换色的规范操作程序。正确项：换色应先回收剩余色浆再清洗，减少浪费和污染；清洗后须检查网框感光胶面有无残留，避免串色；刮刀和刮刀架属于直接接触色浆的部件，换色时必须一并清洗。错误项：清水冲洗后立即加新色浆，残留水分会稀释新色浆并可能引起串色；不同颜色共用刮刀只用湿布擦拭，不能彻底去除残留色浆，会造成颜色污染。","tier":"进阶"},{"id":51,"type":"single","stem":"平网印花机刮印时，刮刀压力过大会直接导致下列哪种印花疵病","options":["花纹边缘渗色扩大","网框内色浆提前干涸","印花花纹露底发白","织物纬向被拉窄"],"answer":[0],"explanation":"刮刀压力过大使色浆沿网孔向花纹边缘外挤，造成渗色扩大，故A对；色浆干涸主要与车速慢、浆料挥发有关，与刮刀压力无直接关系；露底发白通常是压力不足或刮刀磨损；织物拉窄多与张力控制有关，与刮刀压力关系不直接。","tier":"基础"},{"id":52,"type":"single","stem":"圆网印花机在更换圆网后重新对花，发现同一花回在织物上出现周期性错位，应优先检查的项目是","options":["圆网两端闷头是否同心","印花导带表面是否清洁","色浆黏度是否偏高","烘房温度是否达到设定值"],"answer":[0],"explanation":"圆网更换后若闷头不同心，圆网转动时周长变化会产生周期性错位，故A对；导带清洁影响的是沾污类疵点；色浆黏度影响渗透和渗色；烘房温度影响固色和手感，均不造成周期性错位。","tier":"挑战"},{"id":53,"type":"single","stem":"平网印花中遇到花型面积大、色浆用量多的花回，为减少网框内色浆表面结皮，下列做法正确的是","options":["适当加快刮印频率并及时补加新浆","在网框内多加清水稀释表面","把刮刀停放在网框中间不动","将网框抬高离开织物静置"],"answer":[0],"explanation":"加快刮印频率可缩短色浆暴露时间，及时补浆可保持浆面更新，减少结皮，故A对；加水稀释会改变色浆浓度影响色深；刮刀停放不动和网框抬高静置都会让浆面长时间暴露，反而更容易结皮。","tier":"挑战"},{"id":54,"type":"single","stem":"圆网印花机刮刀选用时，印花花型为细线条、小面积色块，通常应选用的刮刀是","options":["较薄且刃口较锐的刮刀","较厚且刃口圆钝的刮刀","厚度大且硬度高的刮刀","带缺口的锯齿形刮刀"],"answer":[0],"explanation":"细线条、小色块要求刮印时透浆量小而均匀，薄而锐的刮刀刮印干净、轮廓清晰，故A对；厚而钝的刮刀适合大面积满底印花，透浆量大；高硬度厚刮刀同样偏重大面积刮印；锯齿形刮刀用于特殊效果，不用于普通细线条。","tier":"进阶"},{"id":55,"type":"single","stem":"印花导带上的热塑性胶层在使用一段时间后出现局部凹陷，最容易引起的印花疵病是","options":["该处花纹出现色浅或漏印","该处花纹颜色明显加深","全幅花纹出现规律性错位","全幅花纹出现纬斜"],"answer":[0],"explanation":"导带胶层凹陷使该处织物与网版贴合不实，刮印时透浆不足，造成色浅或漏印，故A对；颜色加深一般不是凹陷所致；规律性错位多与传动、对花有关；纬斜与织物进布张力有关，与局部凹陷无直接关系。","tier":"进阶"},{"id":56,"type":"single","stem":"在平网印花机上印化纤织物时，色浆中加入适量尿素的主要作用是","options":["促进染料在汽蒸时溶胀上染","提高色浆在网内的流动性","防止印花后织物手感变硬","降低印花后水洗的用水量"],"answer":[0],"explanation":"尿素是吸湿助溶剂，汽蒸时帮助染料溶胀并向纤维内部扩散上染，故A对；流动性主要靠增稠剂和黏度调节；手感变硬与固色剂、浆料残留有关；水洗用水量与尿素无直接关系。","tier":"基础"},{"id":57,"type":"single","stem":"平网印花机对花时，发现织物前进方向的花回间距比网版间距略大，正确的调整方向是","options":["减小织物进布张力或调整对花补偿","增大刮刀压力使色浆扩散","降低色浆黏度使花纹变宽","提高烘房温度加快固色"],"answer":[0],"explanation":"花回间距偏大说明织物实际位移大于网版间距，应通过进布张力或对花补偿调整，故A对；刮刀压力、色浆黏度、烘房温度都不会改变花回间距，只会影响渗色、渗透和固色效果。","tier":"挑战"},{"id":58,"type":"single","stem":"圆网印花机运转中发现个别圆网内色浆液面明显下降，但网面并无明显漏浆，最可能的原因是","options":["该圆网闷头处有轻微渗漏","该圆网刮刀角度过小","该圆网色浆黏度过高","该圆网下方织物张力过大"],"answer":[0],"explanation":"液面下降而无网面漏浆，常见于闷头密封处轻微渗漏，故A对；刮刀角度小主要影响透浆量和花纹清晰度；黏度过高会使透浆困难而非液面下降；织物张力大影响的是印花对花和纬斜。","tier":"挑战"},{"id":59,"type":"single","stem":"印花车间使用圆网印花机时，发现印花后织物的花型边缘出现锯齿状毛边，下列处置措施中最恰当的是","options":["适当提高色浆黏度并检查圆网目数是否偏低","加大刮刀压力并加快印花车速","降低色浆黏度并减小刮刀角度","减少色浆用量并降低导带张力"],"answer":[0],"explanation":"边缘锯齿多因色浆过稀或圆网目数偏低，适当提高黏度并选用较高目数圆网可改善，故A对；加大压力、加快车速会加剧渗色和毛边；降低黏度会使渗色更严重；减少色浆用量不解决边缘轮廓问题。","tier":"挑战"},{"id":60,"type":"single","stem":"某印花工在平网印花机换色时，仅用清水冲洗网框和刮刀就加入新色浆，结果下一批印花出现色光偏暗，正确的换色操作应是","options":["拆卸网框刮刀彻底清洗并检查残留","用清水冲洗后直接加入新色浆","用新色浆冲洗网框后继续生产","用压缩空气吹净网框后加入新浆"],"answer":[0],"explanation":"换色时残留旧浆会混入新浆使色光变化，应拆卸网框、刮刀彻底清洗并检查无残留，故A对；仅清水冲洗、用新浆冲洗、压缩空气吹净都不能保证清除网孔和刮刀死角内的旧浆残留。","tier":"进阶"},{"id":61,"type":"single","stem":"圆网印花机印花时，织物上出现与圆网周长一致的等间距色点，最可能的原因是","options":["圆网网孔局部堵塞后又被冲开","印花导带接头处不平整","色浆中消泡剂加入过量","烘房内热风循环不均匀"],"answer":[0],"explanation":"与圆网周长一致的等间距疵点说明问题出在圆网本身，网孔局部堵塞后周期性地被刮开或冲开即形成等间距色点，故A对；导带接头影响的是导带周长相关疵点；消泡剂过量影响泡沫和表面状态；热风不匀影响固色和手感。","tier":"进阶"},{"id":62,"type":"multi","stem":"关于平网印花机刮刀与圆网印花机刮刀的使用差异，下列描述正确的有","options":["平网刮刀多为往复刮印，圆网刮刀随圆网连续转动","圆网刮刀安装角度对透浆量的影响比平网更敏感","平网刮刀压力调节通常比圆网刮刀更频繁","两种刮刀的材质都只能选用不锈钢","两种刮刀的刃口形状对花纹轮廓均无影响"],"answer":[0,1,2],"explanation":"平网为往复式刮印、圆网为连续转动刮印，故A对；圆网刮刀角度对透浆量影响更敏感，故B对；平网因网框和花型变化，压力调节更频繁，故C对；刮刀材质还有聚氨酯等，并非只能不锈钢；刃口形状直接影响花纹轮廓，故D、E错。","tier":"进阶"},{"id":63,"type":"single","stem":"圆网印花机开机前检查镍网网筒时，发现网筒表面有一处轻微凹陷但未破孔，正确的处置是","options":["直接上机试印观察效果","用胶锤从内侧轻敲复位","更换该网筒并记录报修","提高刮刀压力压平凹陷"],"answer":[2],"explanation":"知识点：圆网网筒损伤的处置原则。网筒凹陷会改变刮印间隙导致云斑或漏印，属不可逆损伤，应更换并报修，故正确。直接试印会浪费坯布且掩盖隐患，故该项错；敲击复位会扩大镍网损伤，故该项错；提高刮刀压力不能消除凹陷反而加速网筒损坏，故该项错。","tier":"挑战"},{"id":64,"type":"single","stem":"活性染料印花后汽蒸固色时，汽蒸箱内湿度过低最可能造成的结果是","options":["色浆中的碱剂被提前中和","纤维膨化不足固色率下降","织物表面产生大量水渍印","印花花型出现明显渗化"],"answer":[1],"explanation":"知识点：活性染料汽蒸固色对湿度的要求。湿度不足时纤维膨化不充分，染料难以扩散进入纤维，固色率下降，故正确。碱剂被中和与汽蒸箱内酸性气体有关，故该项错；水渍印是冷凝水滴落造成，与湿度过低相反，故该项错；渗化发生在印花刮印阶段而非汽蒸阶段，故该项错。","tier":"进阶"},{"id":65,"type":"single","stem":"平网印花中，网框升起后织物上出现与网框边长一致的规则色斑，最可能的原因是","options":["网框升起速度过快带起色浆","网框底部残留色浆滴落","刮刀胶条老化造成漏浆","织物贴台不牢产生位移"],"answer":[1],"explanation":"知识点：平网印花规则色斑的成因判断。网框底部粘附的色浆在网框升起后滴落到织物上，会形成与网框位置对应的规则色斑，故正确。升起速度过快通常造成拖浆或网痕，故该项错；胶条老化漏浆呈条状或不规则状，故该项错；贴台不牢造成的是花型错位而非规则色斑，故该项错。","tier":"进阶"},{"id":66,"type":"single","stem":"圆网印花机更换网筒后对花不准，调整时应当优先检查的部位是","options":["刮刀角度与压力设定","网筒的周向与横向对花机构","磁棒位置与磁场强度","印花导带的张力大小"],"answer":[1],"explanation":"知识点：圆网印花对花调整的先后顺序。换网筒后对花不准，首先应检查网筒周向和横向对花机构是否归位或锁定，故正确。刮刀角度压力影响上浆量而非对花位置，故该项错；磁棒位置影响上浆均匀性，故该项错；导带张力影响织物运行稳定性，不是对花不准的首要原因，故该项错。","tier":"进阶"},{"id":67,"type":"single","stem":"印花色浆中尿素在活性染料印花工艺中的主要作用是","options":["促进染料与纤维的化学键合","帮助染料溶解并保持花型润湿","调节色浆的黏度与流变性","防止色浆在存放中发生腐败"],"answer":[1],"explanation":"知识点：尿素在印花色浆中的功能。尿素主要起助溶和吸湿作用，汽蒸时保持花型部位润湿以利固色，故正确。促进化学键合的是碱剂，故该项错；调节黏度靠增稠剂，故该项错；防腐败靠防腐剂，故该项错。","tier":"基础"},{"id":68,"type":"single","stem":"平网印花机刮印时采用双刮刀（刮印刀加覆刀）的主要目的是","options":["提高单次刮印的上浆量","减少网框抬起时的滴浆","使色浆在网内分布更均匀","降低刮刀对网版的磨损"],"answer":[2],"explanation":"知识点：双刮刀配置的作用。覆刀在刮印前把色浆均匀铺展到网版花纹区域，使刮印时上浆均匀，故正确。上浆量由刮印刀压力角度控制，故该项错；减少滴浆靠网框底部的清洁和控制，故该项错；双刮刀并不降低网版磨损，反而增加接触次数，故该项错。","tier":"基础"},{"id":69,"type":"single","stem":"圆网印花中磁棒印花与刮刀印花相比，磁棒印花的主要优势是","options":["适合高黏度色浆的厚版印花","对网筒的机械损伤更小","印花花型的精细度更高","对花精度更容易控制"],"answer":[1],"explanation":"知识点：磁棒与刮刀两种刮印方式的比较。磁棒靠磁场力压在网筒内壁，接触柔和，对网筒损伤小，故正确。高黏度厚版印花通常刮刀更合适，故该项错；精细度主要由网筒目数和制网精度决定，故该项错；对花精度取决于对花机构，与刮印方式无关，故该项错。","tier":"基础"},{"id":70,"type":"single","stem":"印花车间某批平网印花布出现规律性、间距与网框长度相同的白条，检查网版无破损，下一步应重点检查","options":["色浆的黏度是否偏低","导带表面是否有残留浆料","网框是否固定到位产生移位","刮刀行程是否覆盖全幅"],"answer":[3],"explanation":"知识点：规律性白条的排查思路。间距与网框长度一致的白条说明每版同一位置漏印，多因刮刀行程未覆盖该位置，故应先查刮刀行程，故正确。黏度偏低造成渗色而非白条，故该项错；导带残留造成的是不规则的拖色，故该项错；网框移位造成对花错位而非白条，故该项错。","tier":"进阶"},{"id":71,"type":"single","stem":"印花机操作工在圆网印花过程中发现某一网筒色浆消耗明显快于其他网筒，但花型无明显异常，最合理的处置是","options":["继续生产并在换批时再检查","立即停机拆网检查网筒","适当降低该网筒刮刀压力","加大该网筒色浆供应量"],"answer":[1],"explanation":"知识点：圆网印花异常消耗的判断与处置。单网筒色浆消耗异常偏快，可能网筒已有暗伤或渗漏，应立即停机拆检避免批量疵布，故正确。继续生产可能造成批量渗色，故该项错；降低刮刀压力掩盖问题而非解决，故该项错；加大供应只是补充消耗，不能消除隐患，故该项错。","tier":"挑战"},{"id":72,"type":"single","stem":"印花后焙烘工艺中，焙烘温度偏高而时间偏短对活性染料固色的影响是","options":["固色率提高且手感改善","表面固色而内部固色不足","染料与纤维键合更充分","色光偏深且色牢度提高"],"answer":[1],"explanation":"知识点：焙烘温度与时间对固色的协同作用。温度偏高时间偏短时，织物表面先固色而内部染料未充分扩散固着，造成表里固色不均，故正确。固色率不会因此提高，故该项错；键合充分需要适当温度配合足够时间，故该项错；色光偏深和牢度提高与表里不均相反，故该项错。","tier":"进阶"},{"id":73,"type":"single","stem":"平网印花开机前对花时，网框上的对花标记应与承印织物上的什么位置对齐","options":["织物上已印出的前一色花纹","织物边部的对花记号","网框下导轨的定位槽","刮印刀起始停位线"],"answer":[1],"explanation":"知识点是平网印花对花基准。正确项对：平网对花以织物边部对花记号为准，逐网套准。错误项一错在：已印花纹是印花结果，不能作为对花基准；错误项二错在：导轨定位槽只固定网框位置，不反映织物花纹位置；错误项三错在：刮刀停位线控制的是刮印行程，与套花无关。","tier":"进阶"},{"id":74,"type":"single","stem":"圆网印花机更换圆网后，正式印花前应先做哪一步操作以确认网筒安装到位","options":["直接升压至工作压力试印","手动盘车观察网筒与磁棒贴合","调高烘房温度预热织物","把给浆泵流量开到最大冲洗网筒"],"answer":[1],"explanation":"知识点是圆网装网后的检查程序。正确项对：更换圆网后先手动盘车，观察网筒与磁棒（或刮刀）贴合情况，确认安装到位再升压。错误项一错在：未确认安装就升压试印易造成网筒错位或损坏；错误项三错在：烘房预热与网筒安装确认无关；错误项四错在：最大流量冲洗不能检查网筒贴合，反而浪费色浆。","tier":"进阶"},{"id":75,"type":"single","stem":"平网印花中刮印刀胶条出现局部缺口，对印花效果最直接的影响是什么","options":["花纹颜色整体偏浅","缺口对应位置出现漏印或条痕","网框与织物间产生静电","色浆黏度自动升高"],"answer":[1],"explanation":"知识点是刮印刀状态与印花质量的关系。正确项对：胶条缺口会使该处刮印压力不足，对应位置漏印或出现条痕。错误项一错在：整体偏浅是压力或给浆量整体不足，不是局部缺口；错误项三错在：静电与胶条缺口无直接因果；错误项四错在：色浆黏度由配方和温度决定，缺口不会使其升高。","tier":"基础"},{"id":76,"type":"single","stem":"活性染料印花后汽蒸固色，汽蒸箱内温度偏低且时间不变时，最可能出现的印花疵病是","options":["花纹渗化","得色率下降","网印堵网","织物纬斜"],"answer":[1],"explanation":"知识点是汽蒸固色条件对得色的影响。正确项对：汽蒸温度偏低，染料与纤维反应不充分，得色率下降。错误项一错在：渗化是给浆过多或糊料问题；错误项三错在：堵网发生在印花工序；错误项四错在：纬斜是织物张力或缝头问题。","tier":"基础"},{"id":77,"type":"single","stem":"涂料印花焙烘后牢度不足，检查发现焙烘温度和时间均达标，下一步应优先核查哪一项","options":["印花网目数是否偏高","粘合剂用量是否偏少","刮印刀角度是否偏大","圆网磁棒直径是否偏小"],"answer":[1],"explanation":"知识点是涂料印花牢度的影响因素。正确项对：温度时间达标仍牢度不足，应优先查粘合剂用量，用量不足是常见原因。错误项一错在：网目数影响给浆量，不是牢度主因；错误项三错在：刮刀角度影响给浆均匀性，不决定牢度；错误项四错在：磁棒直径影响刮印效果，与牢度无直接关系。","tier":"挑战"},{"id":78,"type":"single","stem":"平网印花时发现花纹边缘出现锯齿状毛边，最可能的原因是","options":["网框张力偏低","色浆黏度过高","印花车速过快","承印织物含水率过高"],"answer":[0],"explanation":"知识点是平网印花毛边疵病的成因。正确项对：网框张力偏低使网纱回弹慢，花纹边缘出现锯齿毛边。错误项二错在：黏度过高易堵网、给浆不匀，不产生锯齿；错误项三错在：车速过快影响给浆量，不是毛边主因；错误项四错在：含水率过高易渗化，与锯齿毛边不同。","tier":"进阶"},{"id":79,"type":"single","stem":"圆网印花中色浆从网筒两端向外渗漏，最应先检查的部位是","options":["网筒两端的闷头密封","磁棒的压力设定","给浆管的管径大小","承印织物的门幅"],"answer":[0],"explanation":"知识点是圆网印花色浆渗漏的排查。正确项对：色浆从网筒两端渗漏，首先检查闷头密封是否失效。错误项二错在：磁棒压力影响刮印均匀性，不造成端部渗漏；错误项三错在：给浆管径影响供浆量，不导致端部渗漏；错误项四错在：织物门幅与网筒端部渗漏无关。","tier":"基础"},{"id":80,"type":"single","stem":"印花车间调换不同颜色品种时，对刮印刀、给浆管和浆泵的清洗要求是","options":["刮刀擦净即可，管路不必清洗","管路用清水冲一遍即可换色","刮刀、管路、浆泵均须彻底清洗至无残色","只需清洗浆泵，刮刀和管路可继续使用"],"answer":[2],"explanation":"知识点是换色品种时的清洗要求。正确项对：刮刀、管路、浆泵均须彻底清洗至无残色，防止串色。错误项一错在：管路不清洗会残留旧色浆造成串色；错误项二错在：清水冲一遍不足以清除管路内壁残色；错误项四错在：刮刀和管路残色同样会造成串色。","tier":"进阶"},{"id":81,"type":"single","stem":"圆网印花机正常生产中磁棒突然发出异常响声且印花出现不匀，操作工首先应做的是","options":["立即停机检查磁棒和网筒状态","继续生产观察是否自行恢复","调高给浆泵流量补偿","降低烘房温度减少疵品"],"answer":[0],"explanation":"知识点是圆网印花异常情况的处置。正确项对：磁棒异响伴印花不匀，应立即停机检查磁棒和网筒，防止设备损坏和批量疵品。错误项二错在：带病继续生产会扩大疵品和损坏设备；错误项三错在：调高流量掩盖不了机械异常；错误项四错在：降低烘房温度与磁棒异响无关。","tier":"挑战"},{"id":82,"type":"single","stem":"平网印花生产中，刮印后网框抬起时色浆在织物上出现规律性网痕，最应先检查的环节是","options":["刮刀压力是否偏大导致透浆过量","网框抬升速度与刮刀回墨是否匹配","印花导带胶面是否粘附绒毛","色浆黏度是否因温度升高而偏低"],"answer":[1],"explanation":"网框抬升与刮刀回墨不同步时，网框离布瞬间色浆被拉起，形成规律网痕，这是平网印花的典型故障点。刮刀压力偏大主要造成透浆过量、花型模糊，不产生这种规律网痕；导带粘附绒毛影响的是贴布平整度；色浆黏度偏低会渗化，不是网痕主因。","tier":"进阶"},{"id":83,"type":"single","stem":"圆网印花机运行中，某只圆网出现局部堵网，正确的处置顺序是","options":["立即停机拆网清洗后重新对花","降速运行并加大该网刮刀压力冲开","停机用竹片轻刮网面堵点后继续生产","先停该网供浆泵，用湿布擦网面后复产"],"answer":[2],"explanation":"圆网局部堵网应先停机，用竹片等软质工具轻刮堵点，避免损伤镍网，处理后继续生产。立即拆网清洗会破坏对花、耗时过长；降速加压冲网会扩大堵网并损伤网面；只停供浆泵擦网面无法清除网孔内堵塞物。","tier":"进阶"},{"id":84,"type":"single","stem":"印花色浆调制时，原糊与染料色浆的配伍性主要影响的是","options":["色浆的pH缓冲能力","印花后织物的手感","色浆的流变性和印花均匀性","染料的提升力上限"],"answer":[2],"explanation":"原糊与色浆配伍性决定色浆的流变行为，直接影响刮印均匀性和花型清晰度。pH缓冲能力由酸碱调节剂决定；织物手感主要与糊料用量和种类有关；染料提升力是染料本身属性，不由配伍性决定。","tier":"基础"},{"id":85,"type":"single","stem":"平网印花中，网框与印花导带之间的间距（网距）设置过小，最容易造成的质量问题是","options":["花型轮廓渗化模糊","网框与导带之间积浆","刮印时网框弹起造成重影","织物贴布不牢产生移位"],"answer":[1],"explanation":"网距过小，网框在刮印后不易与布面分离，色浆易在网框与导带间堆积，造成积浆。花型渗化模糊多与色浆黏度、给浆量有关；重影多因网框弹起与刮刀回墨不同步；贴布不牢与导带胶面状态有关。","tier":"进阶"},{"id":86,"type":"single","stem":"圆网印花机对花时，发现某套色花型整体沿纬向偏移，正确的调整方法是","options":["调整该圆网的径向对花微调装置","调整该圆网的轴向对花微调装置","调整印花导带的张力","调整该圆网的刮刀角度"],"answer":[1],"explanation":"圆网轴向微调对应花型纬向（横向）位置调整。径向微调调整的是经向（纵向）位置；导带张力影响整体运行稳定，不用于单套色对花；刮刀角度影响给浆量，不改变花型位置。","tier":"挑战"},{"id":87,"type":"single","stem":"使用平网印花机印制精细线条花型时，为减少线条断线，合理的工艺措施是","options":["提高色浆黏度并减小刮刀压力","降低色浆黏度并加大刮刀压力","降低色浆黏度并减小刮刀压力","提高色浆黏度并加大刮刀压力"],"answer":[0],"explanation":"精细线条要求色浆黏度偏高以保持线条清晰，同时刮刀压力不宜过大以免浆料被挤散导致断线。降黏度会使线条渗化；加大压力会破坏细线条完整性，两者均不利。","tier":"进阶"},{"id":88,"type":"single","stem":"平网印花机在印制大面积实地花型时，出现露底、得色不匀，正确的调整方向是","options":["减小刮刀压力并降低刮印速度","增大刮刀压力并适当降低色浆黏度","增大刮刀压力并提高色浆黏度","减小刮刀压力并提高刮印速度"],"answer":[1],"explanation":"大面积实地需要足够给浆量，适当增大刮刀压力并降低色浆黏度有利于色浆均匀透网。减小压力会加剧露底；提高黏度使透网困难；提高刮印速度会减少给浆量，均不利。","tier":"进阶"},{"id":89,"type":"single","stem":"平网印花机刮印时，刮刀硬度选择主要依据什么来确定","options":["花型精细程度和印花面积大小","网框材质和绷网张力高低","色浆黏度和刮印速度快慢","台板长度和印花套色数量"],"answer":[0],"explanation":"知识点：平网刮刀硬度选择依据。花型精细、面积小时选较硬刮刀以保证轮廓清晰，大面积满地花型选较软刮刀以利透浆。B项网框材质与刮刀硬度无直接对应关系；C项黏度和车速影响刮印压力调节而非硬度选择；D项台板长度和套色数与刮刀硬度无关。","tier":"基础"},{"id":90,"type":"single","stem":"圆网印花机镍网目数选择时，若印制细线条花型且色浆流动性较好，应优先选用","options":["低目数厚壁镍网以增加色浆透网量","高目数薄壁镍网以保证线条清晰度","低目数薄壁镍网以降低刮印压力","高目数厚壁镍网以提高网筒刚性"],"answer":[1],"explanation":"知识点：圆网目数与花型精细度的匹配。细线条要求网孔小、透浆量适中，高目数薄壁网兼顾清晰度与透浆。A项低目数厚壁网孔大，细线条会糊边；C项低目数薄壁网虽透浆好但线条边缘不清晰；D项高目数厚壁网透浆量不足，细线条易断线。","tier":"进阶"},{"id":91,"type":"single","stem":"平网印花中，网框上的花型出现局部渗色糊边，最可能的原因是","options":["刮刀压力偏大且刮印次数过多","色浆黏度偏高且刮印速度偏慢","网框绷网张力偏高且回弹过快","台板温度偏低且色浆干燥过慢"],"answer":[0],"explanation":"知识点：平网渗色糊边的成因判断。刮刀压力过大、刮印次数过多会使色浆超出花型边界造成渗色。B项黏度偏高、车速偏慢通常导致透浆不足而非渗色；C项张力偏高使网面回弹快，反而利于轮廓清晰；D项台板温度低、干燥慢会引起搭色，不是花型边界渗色。","tier":"基础"},{"id":92,"type":"single","stem":"圆网印花机刮印过程中发现网筒两端印花色浅而中间正常，应优先检查","options":["网筒两端网孔是否堵塞或刮刀两端磨损","色浆桶内液位是否低于最低刻度线","磁棒磁场强度是否整体下降","印花导带张力是否两侧不一致"],"answer":[0],"explanation":"知识点：圆网横向色差故障排查。两端色浅多因网筒端部网孔堵塞或刮刀两端磨损导致压力不足。B项液位低会造成整体供浆不足而非仅两端；C项磁棒磁场整体下降会影响全幅而非两端；D项导带张力不均可造成对花偏移，不表现为两端色浅。","tier":"挑战"},{"id":93,"type":"single","stem":"印花色浆调制时，为改善色浆在圆网内的流动性又不明显降低色深，通常加入的助剂是","options":["尿素","元明粉","纯碱","食盐"],"answer":[0],"explanation":"知识点：色浆助剂作用辨析。尿素可提高色浆吸湿性和流动性，帮助染料溶解，对色深影响较小。B项元明粉是促染剂，主要用于提高上染率而非改善流动性；C项纯碱用于调节pH，过量会影响某些染料发色；D项食盐虽可促染，但对流动性改善无明显作用。","tier":"基础"},{"id":94,"type":"single","stem":"活性染料印花后汽蒸固色时，若汽蒸时间明显不足，最可能出现的质量问题是","options":["得色深度下降且色光偏萎","花型轮廓渗色糊边加重","印花处手感变硬且泛黄","色浆在网内提前结皮堵网"],"answer":[0],"explanation":"知识点：汽蒸固色时间对活性染料发色的影响。汽蒸不足使染料与纤维反应不充分，得色浅、色光萎暗。B项渗色糊边是刮印或色浆黏度问题，与汽蒸时间无关；C项手感变硬泛黄多为汽蒸过度或助剂问题；D项网内结皮是印花过程中色浆干燥所致。","tier":"进阶"},{"id":95,"type":"single","stem":"平网印花机对花时，发现第二套色花型整体向第一套色的右下方偏移，正确的调整方法是","options":["调整第二套网框的纵向和横向对花微调螺丝","增大第二套色刮刀压力使色浆扩散对齐","降低第二套色印花车速等待色浆自然流平","重新绷制第一套网框以匹配第二套位置"],"answer":[0],"explanation":"知识点：平网对花偏移的调整方法。整体偏移应通过对花微调螺丝调整网框纵横向位置。B项增大刮刀压力只会加重渗色，不能纠正位置；C项降低车速与位置偏移无关；D项重新绷第一套网框属于本末倒置，应先调整偏移的那一套。","tier":"挑战"},{"id":96,"type":"single","stem":"圆网印花机更换色浆品种时，对刮刀和磁棒的清洗要求是","options":["刮净残浆后用清水冲洗并擦干再装新色浆","用压缩空气吹去表面浮浆即可投入新色浆","仅清洗磁棒不洗刮刀以免影响刮刀角度","用旧色浆润湿刮刀以保持其柔软状态"],"answer":[0],"explanation":"知识点：换色时刮印部件的清洗规范。残留旧色浆会污染新色浆造成色光偏差，必须刮净残浆、清水冲洗并擦干。B项压缩空气只能吹去浮浆，残留浆料仍会混色；C项不洗刮刀同样会带入旧色；D项用旧色浆润湿会直接造成新色浆污染。","tier":"基础"},{"id":97,"type":"single","stem":"某印花车间印制涤纶织物分散染料时，发现印花后织物表面有大量白色未上染斑点，检查发现色浆中有细小颗粒，下一步最合理的处置是","options":["将色浆重新研磨过滤后继续使用并检查染料溶解工艺","直接提高刮刀压力把颗粒压碎后继续印花","向色浆中补加尿素提高染料溶解度后继续使用","降低印花车速延长色浆与织物的接触时间"],"answer":[0],"explanation":"知识点：分散染料色浆颗粒造成白斑的处置。颗粒堵塞网孔导致漏印白斑，应重新研磨过滤并检查染料溶解工艺。B项提高刮刀压力不能消除颗粒，反而可能损伤网筒；C项补加尿素对已形成的粗颗粒无分散作用；D项降低车速与颗粒堵塞无关，不能解决白斑。","tier":"挑战"},{"id":98,"type":"single","stem":"圆网印花机在正常生产中突然出现全幅规律性横向条花，检查网筒无堵塞，最可能的故障环节是","options":["刮刀或磁棒出现周期性跳动或磨损不均","色浆桶内色浆温度整体升高","印花导带跑偏超过报警限位","烘房温度设定值整体偏低"],"answer":[0],"explanation":"知识点：圆网规律性横向条花的故障判断。规律性条花多因刮刀或磁棒周期性跳动、磨损不均造成压力波动。B项色浆温度整体升高影响色光深浅，不产生规律条花；C项导带跑偏造成对花偏移而非横向条花；D项烘房温度偏低影响固色，不产生印花条花。","tier":"挑战"},{"id":99,"type":"single","stem":"平网印花机印制大批量订单时，若发现网框上的感光胶层出现细小裂纹但尚未脱落，正确的处置是","options":["立即停印更换网框或修补胶层后再继续生产","继续印花并在每印若干版后检查裂纹是否扩大","用胶带从网框背面粘贴裂纹处继续使用","降低刮刀压力减小对胶层的冲击继续生产"],"answer":[0],"explanation":"知识点：感光胶层裂纹的处置原则。裂纹会导致渗浆和花型缺陷，应立即停印修补或更换网框。B项继续生产会使裂纹扩大并产生批量次品；C项背面贴胶带无法阻止正面渗浆；D项降低压力只能减缓裂纹扩展，不能消除已有缺陷。","tier":"挑战"},{"id":100,"type":"multi","stem":"关于平网印花与圆网印花在操作特点上的比较，下列描述正确的有","options":["平网适合小批量多品种，圆网适合大批量连续生产","圆网印花车速通常高于平网印花","平网印花对花型尺寸变化的适应性强于圆网","圆网印花刮印压力一般比平网印花更小","平网印花的网框绷网张力要求低于圆网"],"answer":[0,1,2],"explanation":"知识点：平网与圆网印花操作特点比较。平网换版灵活适合小批量多品种，圆网连续运转车速高，平网对花型尺寸变化适应性强，A、B、C正确。D项圆网刮印压力通常不小于平网，且磁棒式圆网压力特点不同，表述不准确；E项平网绷网张力要求高以保证对花精度，并非低于圆网。","tier":"进阶"},{"id":101,"type":"single","stem":"平网印花开机前对花时，网框上的花位标记与承印织物上的对花标记应当以什么状态为准进行微调","options":["以网框标记压住织物标记中心线为准","以两标记边缘刚好相切为准","以网框标记落在织物标记外侧为准","以织物标记压住网框标记中心线为准"],"answer":[0],"explanation":"知识点是平网印花对花基准。正确项对：对花要求两标记中心线重合，压住中心线即表示对位准确。错误项错在：边缘相切只是刚接触未对中；落在外侧说明存在偏移；反向压住说明基准搞反，均未达到中心重合的对花要求。","tier":"进阶"},{"id":102,"type":"single","stem":"圆网印花机运行中刮刀压力突然增大而印花深度反而变浅，最可能的原因是","options":["刮刀磨损后刀口变钝贴合不良","圆网内色浆黏度被稀释降低","磁棒位置偏移离开网壁","印花车速被调快导致给浆不足"],"answer":[0],"explanation":"知识点是圆网印花刮刀与给浆关系。正确项对：刀口磨钝后局部贴合变差，压力虽大但实际刮印不实，花型变浅。错误项错在：黏度降低会使渗浆更易而非变浅；磁棒偏移通常造成局部无色或深浅不匀而非整体变浅；车速调快主要影响给浆量，与刮刀压力突增无直接因果。","tier":"挑战"},{"id":103,"type":"single","stem":"平网印花中某色位出现规律性纵向色条，逐条对应网框绷网方向，应优先检查","options":["网框绷网张力是否均匀","色浆是否过滤不充分","承印织物的纬斜程度","刮刀行程速度是否过快"],"answer":[0],"explanation":"知识点是平网印花色条缺陷排查。正确项对：纵向规律色条与网框张力不匀导致网纱局部变形、透浆差异有关。错误项错在：色浆杂质多造成的是不规则斑点；纬斜表现为花型整体歪斜；刮刀速度过快影响整体均匀性而非按网框方向出现规律纵条。","tier":"进阶"},{"id":104,"type":"single","stem":"圆网印花换色清洗时，对圆网内壁残留色浆的正确处置是","options":["用清水循环冲洗至排出液澄清","用同色新浆直接顶出残浆","用压缩空气吹净内壁残浆","用刮刀干刮后即可上机"],"answer":[0],"explanation":"知识点是圆网换色清洗程序。正确项对：换色必须彻底清除残浆，循环冲洗至澄清才能避免串色。错误项错在：同色新浆顶出无法去除异色残留；压缩空气只能吹散不能溶解色浆；干刮会损伤网壁且清不净残留。","tier":"进阶"},{"id":105,"type":"single","stem":"印花织物经蒸化后颜色比小样偏浅，在排除色浆浓度因素后，应重点核查的工序是","options":["蒸化时的温湿度与停留时间","印花后织物的堆置方式","圆网目数是否选得过低","刮刀硬度和角度参数"],"answer":[0],"explanation":"知识点是蒸化固色条件对得色的影响。正确项对：蒸化温湿度不足或时间偏短会使染料固着不完全，导致颜色偏浅。错误项错在：堆置方式影响的是搭色和风印；网目过低影响给浆量而非固色深浅；刮刀参数影响的是图案清晰与给浆均匀，不是蒸化得色。","tier":"进阶"},{"id":106,"type":"single","stem":"平网印花发现花型边缘出现锯齿状毛边，最先应检查的工艺条件是","options":["色浆黏度是否偏低","网框是否放置水平","承印织物是否预热","刮刀橡胶是否老化"],"answer":[0],"explanation":"知识点是印花色浆黏度与花型边缘清晰度。正确项对：黏度过低会使色浆在织物上渗散，造成边缘锯齿毛边。错误项错在：网框不水平影响均匀性而非边缘形态；织物预热影响上浆渗透；刮刀老化影响刮印不实，不直接造成毛边渗散。","tier":"挑战"},{"id":107,"type":"single","stem":"圆网印花机在运行中突然出现整幅无色，停机后检查发现圆网内已无浆，正确的下一步处置是","options":["先排除供浆管路堵塞再恢复运行","直接向圆网内补加色浆继续开车","调低车速等待浆料回流","加大刮刀压力迫使残浆挤出"],"answer":[0],"explanation":"知识点是圆网供浆故障处置。正确项对：整幅无色且网内无浆说明供浆中断，应先查明并排除管路堵塞再开车。错误项错在：不查原因直接补浆会再次断浆；调低车速不能解决断供；加大压力对无浆状态无效且可能损伤网壁。","tier":"挑战"},{"id":108,"type":"single","stem":"平网印花套色时发现后一色压印在前一色湿膜上产生拖色，较合理的工艺调整是","options":["适当提高前一色的干燥程度","降低后一色色浆的黏度","加快后一色的刮印速度","减小后一色的刮刀压力"],"answer":[0],"explanation":"知识点是湿压湿套色拖色控制。正确项对：提高前一色干燥程度可减少后一色压印时的拖带。错误项错在：降低后色黏度会更易拖色；加快刮印速度易带起湿膜；减小压力会使刮印不实而非解决拖色。","tier":"挑战"},{"id":109,"type":"single","stem":"圆网印花制网时，镍网目数的选择主要影响","options":["给浆量与花型精细程度","圆网的耐压强度","色浆的pH值","蒸化时的固色温度"],"answer":[0],"explanation":"知识点是圆网目数与印花效果关系。正确项对：目数决定网孔大小，直接影响给浆量和能表现的最细线条。错误项错在：目数不是决定耐压强度的主因；不影响色浆pH；也不决定蒸化温度设定。","tier":"基础"},{"id":110,"type":"single","stem":"印花车间发现某批织物印花后出现规律性浅斑，位置与圆网周长对应，最可能的原因是","options":["圆网网壁局部堵塞或有损伤","刮刀压力整体偏小","色浆搅拌时间不足","承印织物含水率偏高"],"answer":[0],"explanation":"知识点是圆网周期性疵点判断。正确项对：浅斑按圆网周长周期出现，说明缺陷在圆网本体同一位置，多为网孔堵塞或网壁损伤。错误项错在：整体压力小造成全面偏浅；搅拌不足影响色浆均匀性而非周期性；织物含水高影响渗透，不形成与网周长对应的规律浅斑。","tier":"挑战"},{"id":111,"type":"single","stem":"平网印花开机前对网框进行对花检查时，应选用的基准是","options":["首版网框的十字标记","最后一版网框的边角","任意一版网框的中心点","花回最小的网框边缘"],"answer":[0],"explanation":"知识点：平网印花对花以首版为基准逐版套准。首版十字标记是全套网框对花的共同基准，其他网框依次向它靠拢；末版边角、任意中心点、最小花回边缘都不能作为统一基准，会造成累积偏差。","tier":"挑战"},{"id":112,"type":"single","stem":"圆网印花机更换圆网后，开机前必须复核的项目是","options":["圆网与磁棒的同轴间隙","圆网的出厂日期","镍网的壁厚批号","网头的涂胶颜色"],"answer":[0],"explanation":"知识点：圆网安装后需确认圆网与磁棒间隙一致，否则印花不匀。出厂日期、壁厚批号、涂胶颜色与安装后能否正常印花无直接关系，属于看起来相关但实际不控的项目。","tier":"基础"},{"id":113,"type":"single","stem":"平网印花刮印时出现网点边缘发毛、轮廓不清，最可能的原因是","options":["刮刀压力偏大且角度偏陡","色浆黏度偏低且刮速偏快","网框张力偏高且回位偏慢","承印物含水率偏高且温度偏低"],"answer":[1],"explanation":"知识点：色浆黏度与刮印速度共同影响网点清晰度。黏度偏低时色浆易渗扩，配合刮速偏快使边缘发毛；压力大角度陡、张力高、含水率高虽影响印花，但主要造成渗浆、套歪或得色不匀，不是边缘发毛的首要原因。","tier":"基础"},{"id":114,"type":"single","stem":"圆网印花中磁棒式刮印系统更换花色后，正确的清洗顺序是","options":["先拆磁棒再冲网内壁最后清浆管","先清浆管再拆磁棒最后冲网内壁","先冲网内壁再清浆管最后拆磁棒","先拆网头再冲网内壁最后清浆管"],"answer":[0],"explanation":"知识点：磁棒式圆网清洗应先拆磁棒，再冲网内壁，最后清浆管，避免残浆固化后卡棒。其余顺序会造成残浆在网内或浆管中结皮，影响下次开机。","tier":"基础"},{"id":115,"type":"single","stem":"平网印花中出现规律性套歪，且每版偏移方向一致，应优先检查","options":["网框的张力是否均匀","色浆的黏度是否偏高","承印物的纬斜是否超标","刮刀的角度是否偏小"],"answer":[0],"explanation":"知识点：规律性同向套歪多因网框张力不均或网框变形。色浆黏度偏高影响渗浆，纬斜影响花型整体，刮刀角度偏小影响得色量，均不会造成每版同向偏移。","tier":"基础"},{"id":116,"type":"single","stem":"圆网印花机运行时发现某只圆网出现纵向条花，最合适的处置是","options":["提高该网磁棒压力继续运行","停机检查该网网孔是否堵塞","加大该网色浆供应量继续运行","降低整机车速观察条花变化"],"answer":[1],"explanation":"知识点：纵向条花常因网孔局部堵塞或网面损伤。正确处置是停机检查网孔；提高压力、加大供浆、降速观察只能暂时掩盖问题，不能消除堵塞，可能扩大疵布。","tier":"挑战"},{"id":117,"type":"single","stem":"平网印花色浆调制后放置一段时间出现结皮，使用前正确的处理是","options":["直接搅拌后继续使用","滤去结皮并搅匀后使用","加水稀释后继续使用","升温溶解后继续使用"],"answer":[1],"explanation":"知识点：色浆结皮会堵塞网孔造成缺花，使用前应滤去结皮并搅匀。直接搅拌会把结皮打碎带入网孔，加水稀释改变黏度，升温溶解可能破坏色浆稳定性。","tier":"基础"},{"id":118,"type":"single","stem":"圆网印花中调整色浆黏度时，加入增稠剂后正确的操作是","options":["立即高速搅拌并马上开机","缓慢搅拌并静置消泡后使用","加温水稀释后再高速搅拌","直接倒入浆槽边印边调"],"answer":[1],"explanation":"知识点：增稠剂加入后需缓慢搅拌并静置消泡，否则气泡会造成印花白点。立即高速搅拌、加温水稀释、边印边调都会引入气泡或使黏度不均。","tier":"基础"},{"id":119,"type":"single","stem":"平网印花生产中发现某版花型得色偏浅，其他版正常，首先应检查","options":["该版网框的刮刀压力与角度","整机车速是否偏快","色浆总桶的黏度是否偏低","承印物的含水率是否偏高"],"answer":[0],"explanation":"知识点：单版得色偏浅应先查该版刮刀压力与角度。整机车速、总桶黏度、承印物含水率会影响全部花版，不会只造成单版偏浅。","tier":"挑战"},{"id":120,"type":"single","stem":"圆网印花机停机超过一定时间后重新开机，为防止浆料干堵网孔，正确的做法是","options":["开机前先空转圆网并冲洗网孔","直接开机用原浆继续印花","提高车速快速通过干堵段","加大磁棒压力强行顶开网孔"],"answer":[0],"explanation":"知识点：停机后浆料易在网孔处干结，开机前应空转冲洗网孔。直接开机、提高车速、加大压力都可能造成缺花或网面损伤。","tier":"进阶"},{"id":121,"type":"single","stem":"平网印花中承印物出现规律性色差，且与网版位置对应，最可能的原因是","options":["各版刮刀压力或角度不一致","车间温湿度波动较大","色浆批次间存在差异","承印物批次间存在差异"],"answer":[0],"explanation":"知识点：与网版位置对应的规律性色差多因各版刮刀参数不一致。温湿度、色浆批次、承印物批次差异通常造成整体或随机色差，不会与网版位置一一对应。","tier":"进阶"},{"id":122,"type":"single","stem":"平网印花开机前对网框进行对花校正时，各套色网框的先后调整顺序应依据什么确定","options":["按颜色由深到浅依次校正","按花回中面积最大的网框为基准逐套校正","按网框编号从小到大逐套校正","按色浆黏度由高到低依次校正"],"answer":[1],"explanation":"知识点是平网印花对花基准的选择。正确项以花回中面积最大或轮廓最完整的网框为基准，便于其他网框向其套准，减少累积误差。A项颜色深浅与对花基准无关；C项网框编号是管理编号，不代表对花基准；D项色浆黏度影响刮印效果，不决定对花顺序。"},{"id":123,"type":"single","stem":"圆网印花机运行中，刮刀压力过大最可能直接造成的印花疵病是","options":["花型边缘渗色发毛","圆网两端出现漏印白边","织物表面出现规律性刀线","色浆在网内提前凝胶"],"answer":[0],"explanation":"知识点是圆网印花刮刀压力与印花质量的关系。正确项压力过大会把色浆挤出花型边缘，形成渗色发毛。B项漏印白边多与圆网两端封堵或给浆不足有关；C项规律性刀线多与刮刀磨损或异物有关；D项色浆凝胶与压力无直接因果关系。"},{"id":124,"type":"single","stem":"平网印花中，同一花回内相邻两套色网框的间距过小，最容易引起的操作问题是","options":["后一套网框刮印时压到前一套已印色浆","前一套网框的色浆提前干燥堵网","两套网框的刮刀行程自动缩短","织物在网框间产生纬向拉伸"],"answer":[0],"explanation":"知识点是平网印花网框排布间距。正确项间距过小会使后一网框压到前一网框刚印的色浆，造成搭色。B项堵网与间距无直接关系；C项刮刀行程由设备设定，不会因间距自动缩短；D项纬向拉伸与张力控制有关，不是间距过小直接引起。"},{"id":125,"type":"single","stem":"圆网印花机更换圆网后，开机前用手转动圆网检查的目的主要是确认","options":["圆网内刮刀角度是否与上次一致","圆网与织物运行是否同步无卡阻","圆网两端闷头是否已涂密封胶","圆网内色浆液位是否达到标准"],"answer":[1],"explanation":"知识点是圆网更换后的开机前检查。正确项手转圆网可确认圆网转动是否顺畅、与织物运行是否同步无卡阻。A项刮刀角度需用角度尺单独检查；C项闷头密封在安装时已处理，手转不能确认涂胶；D项液位在给浆后观察，与手转检查目的不同。"},{"id":126,"type":"single","stem":"平网印花时发现某套色花型局部出现周期性缺浆，缺浆位置随网框移动而改变，最可能的原因是","options":["该套色网框局部网孔堵塞","该套色刮刀某段磨损凹陷","该套色色浆黏度整体偏高","该套色网框与织物间距过大"],"answer":[1],"explanation":"知识点是平网印花缺浆疵病的判断。正确项缺浆位置随网框移动而改变，说明问题在刮刀某段凹陷，凹陷处刮印压力不足。A项网孔堵塞位置固定，不随网框移动；C项黏度整体偏高会造成全面缺浆而非局部周期性；D项间距过大会造成整版缺浆或渗色，不是随网框移动的局部缺浆。"},{"id":127,"type":"single","stem":"圆网印花中，色浆从圆网两端闷头处渗漏，下列处置措施中最先应当做的是","options":["降低印花机车速以减少渗漏量","检查并重新调整两端闷头密封","提高色浆黏度以堵住渗漏","加大刮刀压力使色浆压回网内"],"answer":[1],"explanation":"知识点是圆网印花两端渗漏的处置。正确项应先检查并重新调整两端闷头密封，因为渗漏根源在密封失效。A项降速只能减少渗漏量，不能消除根源；C项提高黏度会影响印花效果且不解决密封问题；D项加大压力会加剧渗漏。"},{"id":128,"type":"single","stem":"平网印花车间环境温度偏低时，水性色浆在网框上干燥速度变化及应对措施是","options":["干燥变慢，应减少刮印次数","干燥变慢，应提高色浆黏度","干燥变快，应缩短刮印间隔","干燥变慢，应适当提高车间温度"],"answer":[3],"explanation":"知识点是环境温度对水性色浆干燥的影响。正确项温度偏低时水分蒸发慢，色浆干燥变慢，应适当提高车间温度。A项减少刮印次数与干燥速度无关；B项提高黏度会加重堵网；C项温度低不会使干燥变快。"},{"id":129,"type":"single","stem":"圆网印花机在印花过程中突然出现整幅规律性斜向条花，最先应检查的部件是","options":["圆网内刮刀的安装角度","印花导带的张紧与跑偏","色浆的过滤网目数","织物的前处理退浆效果"],"answer":[1],"explanation":"知识点是圆网印花规律性斜向条花的排查。正确项整幅规律性斜向条花多与印花导带跑偏或张紧不均有关，应先检查导带。A项刮刀角度异常多造成局部不匀；C项色浆过滤影响堵网；D项前处理退浆影响上染，不造成规律斜条。"},{"id":130,"type":"single","stem":"平网印花中，刮刀硬度过高对印花效果的主要影响是","options":["色浆透网量增加，花型更饱满","色浆透网量减少，花型易露底","刮刀与网框摩擦减小，网框寿命延长","刮刀回弹变慢，适合高黏度色浆"],"answer":[1],"explanation":"知识点是平网印花刮刀硬度的作用。正确项硬度过高时刮刀与网面贴合过紧，透网量减少，花型易露底。A项透网量增加与硬度过高相反；C项硬度过高摩擦增大而非减小；D项回弹变慢通常是硬度偏低或老化，与硬度过高不符。"},{"id":131,"type":"single","stem":"圆网印花机停机较长时间后重新开机，发现圆网内色浆已结皮，正确的处置方式是","options":["直接加新色浆搅拌后继续印花","将结皮捞出后加溶剂稀释继续用","清洗圆网并重新调配色浆后再开机","提高车速把结皮色浆先印掉"],"answer":[2],"explanation":"知识点是圆网印花色浆结皮后的处置。正确项应清洗圆网并重新调配色浆，避免结皮颗粒造成堵网和疵点。A项加新浆搅拌不能消除结皮颗粒；B项捞皮加溶剂可能残留颗粒且改变色浆性能；D项提高车速会把结皮印到织物上形成疵点。"},{"id":132,"type":"single","stem":"平网印花中，某套色网框刮印后花型出现边缘清晰但中间色浅的现象，最可能的原因是","options":["刮刀压力偏小且刮印速度偏快","网框中间网孔局部堵塞","色浆黏度偏低导致渗色","网框与织物间距偏小"],"answer":[0],"explanation":"知识点是平网印花花型中间色浅的判断。正确项刮刀压力偏小且速度偏快时，中间区域透网不足，边缘因网框变形贴合较好而清晰。B项网孔堵塞会造成局部缺浆而非整体中间浅；C项黏度偏低会渗色使边缘模糊；D项间距偏小易造成渗色和搭色，不是中间浅。"},{"id":133,"type":"single","stem":"圆网印花机运行中，发现印花图案出现规律性的横向深浅不匀条纹，最可能的原因是","options":["圆网目数选择偏大","磁棒压力周期性波动","色浆黏度整体偏高","织物进布张力偏松"],"answer":[1],"explanation":"知识点：圆网印花横条疵病成因。磁棒压力周期性波动会造成规律性横向深浅不匀；目数偏大影响的是给浆量整体偏少；黏度偏高影响渗透和清晰度；进布张力偏松主要造成纬斜或折皱。"},{"id":134,"type":"single","stem":"平网印花中，印花网框的绷网张力偏低时，最容易出现的印花疵病是","options":["图案重复套版不准","花型轮廓模糊发虚","织物表面出现压痕","色浆渗透到反面"],"answer":[1],"explanation":"知识点：绷网张力对印花清晰度的影响。张力偏低时网版与织物贴合不良，花型轮廓发虚；套版不准多与对花系统有关；压痕与刮刀压力或网框有关；透到反面与给浆量和压力有关。"},{"id":135,"type":"single","stem":"圆网印花机更换圆网后，进行对花调整时应优先检查的项目是","options":["圆网内刮浆刀的角度","各套色圆网的周向和横向对花标记","色浆槽内色浆的液位高度","印花导带的张力大小"],"answer":[1],"explanation":"知识点：圆网印花对花操作程序。更换圆网后首先核对各套色的周向和横向对花标记，确保套色准确；刮刀角度、色浆液位、导带张力属于后续工艺参数调整，不是对花调整的首要项目。"},{"id":136,"type":"single","stem":"平网印花生产中，色浆在网版上放置时间过长开始出现结皮，正确的处置方式是","options":["直接加清水搅拌后继续使用","刮除结皮并补加适量原浆搅匀","提高刮印速度把结皮刮碎","降低网版高度减少色浆暴露"],"answer":[1],"explanation":"知识点：色浆结皮的处理。结皮是色浆表面干燥成膜，应刮除结皮并补加原浆搅匀恢复使用；加清水会改变色浆黏度和色浓度；刮碎结皮会带入花型造成堵网或色点；降低网版高度不能解决结皮问题。"},{"id":137,"type":"single","stem":"圆网印花机印花时，发现织物某一段出现连续的纵向色条，且位置固定不随花型移动，最可能的原因是","options":["圆网网孔局部堵塞","磁棒表面有损伤","色浆黏度偏低","印花导带跑偏"],"answer":[0],"explanation":"知识点：圆网纵向色条的成因判断。圆网网孔局部堵塞会造成位置固定的纵向色条；磁棒损伤一般造成横向或局部不规则疵点；黏度偏低造成渗色；导带跑偏影响的是整体对花和纬斜。"},{"id":138,"type":"single","stem":"平网印花中，刮刀胶条的刃口出现轻微缺口时，对印花质量最直接的影响是","options":["花型颜色整体变深","对应位置出现规律性色条","网版使用寿命缩短","色浆干燥速度加快"],"answer":[1],"explanation":"知识点：刮刀胶条损伤与疵病对应关系。刃口缺口会在对应位置形成规律性色条；整体颜色变深与给浆量有关；网版寿命与胶条缺口无直接关系；干燥速度与胶条无关。"},{"id":139,"type":"single","stem":"圆网印花机在正常印花过程中突然出现大面积漏印，最先应检查的部位是","options":["圆网内色浆是否供应中断","印花导带是否清洁","烘燥温度是否偏低","织物纬斜是否超标"],"answer":[0],"explanation":"知识点：圆网漏印的应急排查顺序。大面积漏印首先排查圆网内色浆供应是否中断，如色浆泵、输浆管；导带清洁影响的是沾污疵点；烘燥温度影响固色；纬斜影响对花。"},{"id":140,"type":"single","stem":"平网印花机印花后织物进入烘燥前，操作工发现花型有轻微拖尾现象，正确的调整方向是","options":["提高刮刀压力并加快刮印速度","降低刮刀压力并减慢刮印速度","增大网版与织物的间隙","提高色浆的含固量"],"answer":[1],"explanation":"知识点：拖尾疵病的调整。拖尾多因刮印速度过快或压力过大导致色浆在网版抬起时被带起，应降低压力并减慢刮印速度；提高压力会加重拖尾；增大间隙影响贴合；含固量影响渗透和手感。"},{"id":141,"type":"single","stem":"圆网印花机生产中，印花导带表面粘附的色浆和绒毛未及时清洗，最可能造成的印花疵病是","options":["花型色泽偏浅","织物反面沾色","圆网网孔堵塞","色浆黏度升高"],"answer":[1],"explanation":"知识点：印花导带清洁与沾色疵病。导带表面粘附色浆和绒毛会转移到织物反面造成沾色；色泽偏浅与给浆量有关；圆网堵塞与色浆和网孔有关；黏度升高与色浆配方和温度有关。"},{"id":142,"type":"single","stem":"圆网印花机运行中磁棒刮印的给浆量主要靠什么调节","options":["磁棒直径与磁性强度","刮刀角度与刀口硬度","网筒目数与色浆黏度","磁棒压力与运行速度"],"answer":[3],"explanation":"知识点是圆网磁棒印花给浆量控制。磁棒压力增大、运行速度改变会直接改变给浆量，故D正确；磁棒直径与磁性强弱影响刮印均匀性但非主要调节给浆量手段，A错；刮刀角度属于刮刀式圆网，B错；网筒目数与色浆黏度影响透网性而非直接调节给浆量，C错。"},{"id":143,"type":"single","stem":"平网印花对花时发现连续几版纵向逐渐偏移，最可能的原因是","options":["网框张力不一致","印花导带跑偏","刮刀压力不均","网版纵向定位机构松动"],"answer":[3],"explanation":"知识点是平网印花对花误差排查。纵向逐版累积偏移说明纵向定位（如定位销、丝杆）松动，故D正确；网框张力不一致主要引起局部花型变形，A错；导带跑偏表现为横向或斜向偏移，B错；刮刀压力不均造成色深不匀而非位置偏移，C错。"},{"id":144,"type":"single","stem":"圆网印花机网筒两端出现色浆渗漏，日常最应优先检查的是","options":["网筒两端闷头密封圈","网筒内部磁棒位置","色浆的黏度是否偏低","刮刀与网筒间隙"],"answer":[0],"explanation":"知识点是圆网网筒端部密封。两端渗漏多因闷头密封圈老化或安装不到位，故A正确；磁棒位置影响刮印均匀性不直接导致端部漏浆，B错；色浆黏度偏低会加剧渗漏但不是优先检查部位，C错；刮刀间隙影响刮印效果，与端部密封无关，D错。"},{"id":145,"type":"single","stem":"印花后织物需经汽蒸固色，若汽蒸时间明显不足，最常见的后果是","options":["色光偏暗且牢度下降","花型轮廓渗化","色浆在织物上堆积","织物手感变硬"],"answer":[0],"explanation":"知识点是汽蒸固色对染料上染的影响。时间不足染料未充分固着，得色浅、色光暗、湿摩擦牢度差，故A正确；渗化源于色浆黏度或给浆量问题，B错；色浆堆积与刮印或烘燥有关，C错；手感变硬多与糊料或后处理有关，D错。"},{"id":146,"type":"single","stem":"平网印花中网版感光胶膜局部脱落，继续印花会出现的疵病是","options":["花型边缘出现毛刺","该处出现规则漏浆色斑","整版颜色整体变浅","花型出现周期性错位"],"answer":[1],"explanation":"知识点是网版胶膜完整性与印花疵病。胶膜脱落处无遮挡，色浆直接漏印形成规则色斑，故B正确；毛刺源于刮刀或色浆问题，A错；整版变浅与给浆量或色浆浓度有关，C错；周期性错位是机械定位问题，D错。"},{"id":147,"type":"single","stem":"圆网印花机更换新网筒后印花，发现花型沿圆周方向有规律性深浅不匀，最可能的原因是","options":["网筒圆跳动超差","色浆黏度偏高","刮刀压力偏小","导带张力不足"],"answer":[0],"explanation":"知识点是圆网网筒安装精度。网筒圆跳动超差使刮印间隙周期变化，形成规律性深浅不匀，故A正确；黏度偏高影响透网性但呈整体性，B错；刮刀压力偏小使整体色浅，C错；导带张力不足引起织物偏移而非周期性深浅，D错。"},{"id":148,"type":"single","stem":"印花车间调配色浆时，两种不同色浆需用同一搅拌桶，正确的处置是","options":["用清水冲一遍桶壁后直接调配","先用清水冲洗再用同色系余浆润桶","倒净残浆后直接加入新色浆搅拌","用热水冲洗后立即调配浅色浆"],"answer":[1],"explanation":"知识点是色浆调配的防沾污操作。仅清水冲洗或倒净残浆仍会残留底色污染新浆，先用清水冲洗再用同色系余浆润桶可减少色光干扰，故B正确；A、C、D均未有效消除残留底色，浅色浆尤其易被污染。"},{"id":149,"type":"single","stem":"平网印花机在印花过程中突然停台，导带上已印未烘的织物正确的处置是","options":["继续开机把该段印完再停","立即用湿布擦除该段色浆","保持原位待恢复后直接续印","将未烘织物引入烘房烘干后再停"],"answer":[3],"explanation":"知识点是停台时未固色织物的处理。停台时间不确定时，已印未烘织物应送入烘房烘干防止搭色，故D正确；继续印完会扩大停台影响，A错；湿布擦除会损伤织物且污染导带，B错；原位久置会渗化搭色，C错。"},{"id":150,"type":"single","stem":"某批印花布出现花型轮廓清晰但颜色整体偏浅，排查色浆配方无误后，下一步最应检查的是","options":["网版目数是否偏大","刮印压力与刮刀硬度","汽蒸箱温度记录","织物前处理退浆率"],"answer":[0],"explanation":"知识点是印花得色浅的排查顺序。轮廓清晰说明对花与刮印正常，整体偏浅且配方无误时，常因网版目数偏大透浆量不足，故A正确；刮印压力异常多伴轮廓变化，B次之；汽蒸与退浆影响牢度或吸色，但轮廓清晰时优先查网版，C、D非首要。"},{"id":151,"type":"single","stem":"平网印花生产中，刮印后网框抬起时出现织物随网框带起（粘网）现象，最直接有效的现场处置措施是","options":["加大刮印压力使浆料渗入织物","适当加快网框抬起速度并降低浆料粘度","在网框抬起前先反向刮一刀回浆","减少刮印次数并降低刮刀角度"],"answer":[2],"explanation":"知识点：平网粘网原因与处置。粘网多因浆料粘度过高、给浆过多或网框抬起时浆料把织物带起，抬框前先回刮一刀可把网内余浆刮回，减少粘附力，是标准现场处置。加大刮印压力会让更多浆料进入网孔反而加重粘网；加快抬框速度会使粘附拉拽更突然，不能解决粘附本身；降低刮刀角度与减少刮印次数对已产生的粘网无直接作用。"},{"id":152,"type":"single","stem":"圆网印花机镍网网孔堵塞后采用手工擦网清堵，正确的处理顺序是","options":["停浆→抬起刮刀→移开网头→用湿布擦洗网面内外","停浆→用稀碱液浸泡→开动印花机转动网筒冲洗","抬起刮刀→继续低速运转→用毛刷顺网孔刷洗","移开网头→用压缩空气由内向外吹通网孔"],"answer":[0],"explanation":"知识点：圆网清堵操作规程。清堵必须先切断给浆、抬起刮刀、移开网头，使网筒处于无浆无压状态，再用湿布擦洗内外网面，防止残浆被压入网孔或刮刀划伤镍网。稀碱液浸泡并转动网筒会把浆料甩溅并可能腐蚀镍网；低速运转带浆刷洗会把杂质压入网孔；压缩空气由内向外吹会把浆料吹到织物上且网内仍有余浆。"},{"id":153,"type":"single","stem":"活性染料印花后汽蒸固色，若汽蒸箱内温度低于工艺要求且时间偏短，印花织物最可能出现的结果是","options":["得色变深且手感发硬","得色变浅且水洗牢度下降","花色渗化并出现轮廓不清","白地沾污明显加重"],"answer":[1],"explanation":"知识点：活性染料汽蒸固色条件。活性染料需在饱和蒸汽和足够温度时间下与纤维反应固着，温度偏低、时间偏短使固色率下降，表现为得色浅、皂洗牢度差。得色变深发硬通常是固色过度或助剂过量；渗化轮廓不清是浆料粘度或给浆问题；白地沾污多与防染剂、清洗工艺有关，不是汽蒸不足的直接结果。"},{"id":154,"type":"single","stem":"圆网印花磁棒刮印系统中，磁棒直径选得比常规偏大时，对印花效果的主要影响是","options":["给浆量减少且花型精细度提高","给浆量增大且渗透性增强","刮印压力降低且易漏印","色浆消耗下降且轮廓更清晰"],"answer":[1],"explanation":"知识点：磁棒刮印参数与给浆关系。磁棒直径增大，与网面接触弧长和压力作用区增大，给浆量增大、渗透增强，适合大面积实块。给浆减少、精细度提高是细磁棒的特征；压力降低易漏印与直径增大规律相反；色浆消耗下降与给浆增大矛盾。"},{"id":155,"type":"single","stem":"印花色浆调制时发现浆料中有少量未化开的增稠剂颗粒，正确的处理方式是","options":["直接过80目筛后投入使用","加少量热水搅拌后继续使用","静置一段时间待颗粒沉降后取上层","提高搅拌速度再打一遍即可"],"answer":[0],"explanation":"知识点：色浆调制与过滤。未化开的增稠剂颗粒必须过滤除去，否则会堵塞网孔造成漏印或拖点，过80目筛是常规做法。加热水搅拌可能使颗粒表面糊化更难化开；静置沉降无法去除悬浮颗粒；提高搅拌速度只能打散部分颗粒，仍有残粒。"},{"id":156,"type":"single","stem":"圆网印花机运行中导带突然跑偏并触发纠偏报警，操作工首先应做的动作是","options":["立即按下急停并检查导带边缘","继续运行观察纠偏装置能否自动复位","手动调整导带张力辊加大张力","降低车速让导带自行回到中间位置"],"answer":[0],"explanation":"知识点：导带跑偏应急处理。跑偏触发报警说明已超出自动纠偏范围，继续运行会撕裂导带或造成花型严重错位，应先急停再检查边缘和纠偏机构。继续运行观察、加大张力、降低车速都可能在导带已偏的情况下加重损伤，不是首要动作。"},{"id":157,"type":"single","stem":"平网印花刮刀胶条出现中间凹陷、两端完好的磨损形态，最可能的原因是","options":["刮刀压力整体偏大","刮印行程中刮刀受力不均","胶条安装时两端夹持过紧","刮印速度整体偏快"],"answer":[1],"explanation":"知识点：刮刀磨损形态分析。中间凹陷说明刮印时中部受力大于两端，常见于刮刀架刚性不足、网框中部下挠或刮印行程受力不均。整体压力偏大是均匀磨损；两端夹持过紧会造成两端变形而非中间凹陷；速度偏快影响给浆均匀性，不产生该磨损形貌。"},{"id":158,"type":"single","stem":"涤纶织物用分散染料印花后采用高温常压蒸化，与热熔固色相比，其固色特点主要是","options":["固色时间短且得色深","固色时间长且手感柔软","固色温度高且牢度更好","固色无需汽蒸直接焙烘"],"answer":[1],"explanation":"知识点：分散染料两种固色方式对比。高温常压蒸化靠蒸汽传热使染料扩散进入纤维，时间长但纤维损伤小、手感柔软；热熔固色温度高、时间短、得色深但手感偏硬。固色时间短得色深是热熔的特点；温度高牢度更好不是蒸化的特点；无需汽蒸直接焙烘属热熔工艺。"},{"id":159,"type":"single","stem":"印花车间发现某批平网印花织物花型边缘出现锯齿状毛边，排查时首先应确认的工艺因素是","options":["色浆粘度是否偏高","网框绷网张力是否偏低","刮刀是否磨损或角度不当","导带表面是否清洁"],"answer":[2],"explanation":"知识点：花型毛边的成因判断。锯齿状毛边多因刮刀刃口磨损、角度不当使浆料在网孔边缘拖带造成，应优先查刮刀状态。粘度偏高会使浆料难透网、轮廓反而较实；绷网张力偏低会造成花型整体变形；导带不洁会造成反面沾污，与边缘毛边无直接关系。"},{"id":160,"type":"single","stem":"印花机换色换花型时，圆网、刮刀、给浆管的清洗顺序应遵循的原则是","options":["先洗浅色后洗深色，圆网最后拆","先拆圆网再洗刮刀与浆管，由深色向浅色","先洗刮刀与浆管，再拆圆网清洗，由浅色向深色","圆网与浆管同时清洗，不分先后"],"answer":[2],"explanation":"知识点：换色清洗顺序。应先清洗刮刀、浆管等残浆多的部位，再拆圆网单独清洗，且按由浅色向深色顺序安排可减少串色风险。先浅后深但圆网最后拆的顺序不完整；先拆圆网会使残浆滴落污染设备；不分先后会造成串色和交叉污染。"},{"id":161,"type":"multi","stem":"平网印花出现大面积漏印（花型局部无浆），下列排查方向中合理的有","options":["网孔是否被干浆或杂质堵塞","刮印压力是否偏小或刮刀磨损","色浆粘度是否过高导致透网困难","网框绷网张力是否过大","导带表面温度是否过低"],"answer":[0,1,2],"explanation":"知识点：平网漏印原因排查。漏印常见于网孔堵塞、刮印压力不足或刮刀磨损、色浆粘度过高难透网，这三项都是直接原因。绷网张力过大主要影响花型变形与网框寿命，不直接造成漏印；导带温度过低影响的是贴布与烘干，与花型漏印无直接因果关系。"},{"id":162,"type":"single","stem":"平网印花开机前对网框进行对花检查时，应优先确认的基准是","options":["第一套色网框在承印物上的位置","最后一套色网框在承印物上的位置","刮刀压力是否已调至最大","网框与磁台之间的磁力大小"],"answer":[0],"explanation":"知识点是平网印花对花基准的确定。正确项对：对花应以第一套色网框在承印物上的位置为基准，后续网框依次向它套准。错误项错在：最后一套色只是被套对象而非基准；刮刀压力属于印花均匀性参数，与对花基准无关；磁力大小影响网框固定，不决定对花顺序。"},{"id":163,"type":"single","stem":"圆网印花机运行中，圆网内刮刀与圆网内壁的接触状态应保持","options":["刮刀刀口轻贴内壁并保持均匀线接触","刮刀刀口压紧内壁使圆网明显变形","刮刀与内壁之间留出可见缝隙","刮刀只在圆网两端接触内壁"],"answer":[0],"explanation":"知识点是圆网印花刮刀的正确工作状态。正确项对：刮刀应轻贴内壁、线接触均匀，才能均匀挤压色浆透过网孔。错误项错在：压紧使圆网明显变形会损坏网筒并造成色浆厚薄不均；留缝隙则刮不净色浆造成拖浆；只两端接触属于安装不良，中间会漏刮。"},{"id":164,"type":"single","stem":"印花过程中发现织物上出现规律性、与圆网周长一致的色点重复，最可能的原因是","options":["圆网网孔局部堵塞","色浆黏度整体偏低","磁台磁力偏小","承印织物张力偏大"],"answer":[0],"explanation":"知识点是圆网印花常见疵点的成因判断。正确项对：与圆网周长一致的重复色点，说明网筒上固定位置有堵孔或缺损，每转一圈就重复一次。错误项错在：黏度偏低造成的是渗化拖色而非位置固定的重复点；磁力偏小影响网框固定，不形成周长周期；张力偏大造成花型变形或纬斜。"},{"id":165,"type":"single","stem":"平网印花刮印时，刮刀行进速度与色浆渗透量的关系是","options":["速度过快时色浆渗透量减少","速度过快时色浆渗透量增加","速度变化对渗透量没有影响","速度过慢时色浆渗透量减少"],"answer":[0],"explanation":"知识点是刮印速度对色浆转移的影响。正确项对：刮印速度过快，色浆在网孔处受压时间短，渗透量减少，易出现露底。错误项错在：速度过快不会增加渗透；速度与渗透量确有关系，并非无影响；速度过慢反而给色浆更长时间受压渗入，渗透量不会减少。"},{"id":166,"type":"single","stem":"色浆在印花前进行黏度检测，其目的是保证","options":["色浆在网孔中的转移和花纹轮廓清晰","色浆在织物上的日晒牢度","色浆与织物的化学结合率","色浆在储存中的抗菌性能"],"answer":[0],"explanation":"知识点是印花色浆黏度控制的作用。正确项对：黏度决定色浆在网孔中的流动与转移行为，直接影响花纹轮廓清晰度和渗透均匀性。错误项错在：日晒牢度由染料结构和固色工艺决定；化学结合率取决于染料与纤维反应；抗菌性能靠防腐剂，与黏度无关。"},{"id":167,"type":"single","stem":"圆网印花机更换新圆网后首次试印，正确的操作顺序是","options":["先低速试印并对花，再逐步升速至工艺速度","直接以工艺速度试印并同步对花","先升速检查网筒强度，再停车对花","先关闭色浆供给空转对花，再开泵供浆"],"answer":[0],"explanation":"知识点是新圆网装机后的试印程序。正确项对：新网应先低速试印，便于观察对花和网筒状态，确认后再逐步升速到工艺速度。错误项错在：直接工艺速度试印一旦对花不准会大量废布；先升速不检查对花顺序颠倒；空转对花看不到实际印花效果，无法判断对花是否准确。"},{"id":168,"type":"single","stem":"印花织物在圆网印花后出现左右两边颜色深浅不一致，首先应检查的环节是","options":["圆网两端刮刀压力是否一致","色浆的pH值是否在规定范围","圆网目数是否与花型匹配","印花后烘干温度是否偏高"],"answer":[0],"explanation":"知识点是印花左中右色差的排查顺序。正确项对：左右色差最常见原因是圆网两端刮刀压力不一致，导致两侧挤压色浆量不同。错误项错在：色浆pH影响发色深浅但不造成左右规律性差异；网目数决定精细度而非左右差；烘干温度偏高造成整体色光变化而非左右不均。"},{"id":169,"type":"single","stem":"圆网印花机在运行中圆网内色浆液面应保持","options":["稳定在刮刀工作区内的适当高度","尽可能充满整个圆网内腔","低于刮刀刀口以便观察","随印花速度同步升降"],"answer":[0],"explanation":"知识点是圆网内色浆液面的控制要求。正确项对：液面应稳定保持在刮刀工作区内的适当高度，既保证供浆连续又不溢浆。错误项错在：充满内腔会增大转动负载并易溢浆；低于刮刀刀口会造成供浆中断露底；液面随速度同步升降没有工艺依据，反而不稳定。"},{"id":170,"type":"single","stem":"印花车间发现某批印花布经蒸化后颜色比标样浅，在排除染料和蒸化条件后，应重点核查的印花工序参数是","options":["印花时刮刀压力和色浆黏度","印花后布匹的卷绕张力","印花前织物的退浆率","印花机的对花精度"],"answer":[0],"explanation":"知识点是印花得色深浅与刮印参数的关系。正确项对：刮刀压力不足或色浆黏度偏高都会减少色浆转移量，使印花得色偏浅，属于印花工序本身的可控参数。错误项错在：卷绕张力影响布面平整而非得色量；退浆率影响渗透但通常造成色花；对花精度影响花纹位置而非颜色深浅。"},{"id":171,"type":"single","stem":"圆网印花机停机较长时间后再开机，对圆网内残留色浆的正确处置是","options":["将残留色浆彻底清洗干净后再重新加浆","直接加入新色浆稀释后继续使用","将残留色浆搅匀后按原样继续使用","只清洗圆网两端残留色浆"],"answer":[0],"explanation":"知识点是停机后色浆残留的处理。正确项对：长时间停机后残留色浆会结皮、黏度变化，必须彻底清洗圆网和输浆系统后再加新浆，才能保证印花质量。错误项错在：直接加新浆稀释无法去除已结皮颗粒；搅匀后继续用会把结皮带入花型造成堵孔；只洗两端不能清除内壁和管路中的残留。"},{"id":172,"type":"single","stem":"圆网印花机运行时出现规律性横向条花，最可能的原因是","options":["圆网镍网网孔局部堵塞","印花导带跑偏未及时纠正","圆网与印花导带速比不匹配","色浆供应量忽多忽少"],"answer":[2],"explanation":"知识点：圆网印花横向条花的成因。圆网与导带速比不匹配会造成周期性横向条花。网孔局部堵塞多形成点状或块状缺花；导带跑偏造成花型歪斜或一边深一边浅；色浆供应量波动造成纵向深浅不匀，不是规律横向条花。"},{"id":173,"type":"single","stem":"平网印花中，色浆在网框内出现结皮干涸，最恰当的处理方式是","options":["加少量清水搅拌后继续使用","用同色浆稀释后过滤再用","停机将结皮清除并清洗网框","提高刮印速度减少暴露时间"],"answer":[2],"explanation":"知识点：平网印花色浆结皮处理。结皮干涸的色浆若继续使用会堵塞网孔造成缺花，正确做法是停机清除结皮并清洗网框。加水搅拌会改变色浆黏度和色浓度；同色浆稀释过滤无法去除已结皮颗粒；提高刮印速度不能解决已结皮问题。"},{"id":174,"type":"single","stem":"圆网印花机刮刀与圆网内壁接触角度偏小，对印花效果的主要影响是","options":["色浆刮不净造成拖浆","网孔进浆量不足缺花","圆网磨损加快寿命缩短","印花花型边缘变粗"],"answer":[1],"explanation":"知识点：圆网刮刀角度对给浆量的影响。刮刀角度偏小时刮刀对色浆的推挤力减弱，网孔进浆量不足，易造成缺花。拖浆多因刮刀角度偏大或压力不足；圆网磨损加快与角度关系不直接；花型边缘变粗一般与渗色或压力过大有关。"},{"id":175,"type":"single","stem":"印花导带上的台板胶在使用一段时间后黏性下降，正确的维护做法是","options":["直接补涂新台板胶覆盖旧胶","用溶剂擦洗后重新涂胶","加热导带使旧胶恢复黏性","在旧胶上撒少量滑石粉"],"answer":[1],"explanation":"知识点：印花导带台板胶维护。台板胶黏性下降后应先用溶剂擦洗去除旧胶再重新涂胶，否则新旧胶叠加会造成厚度不匀影响贴布效果。直接补涂会造成胶层不匀；加热不能恢复已老化胶的黏性；撒滑石粉会进一步降低黏性。"},{"id":176,"type":"single","stem":"平网印花套色时，后一色网框与前一色花型出现错位，首先应检查的环节是","options":["色浆黏度是否发生变化","网框对花标记是否对准","刮刀压力是否一致","印花导带速度是否稳定"],"answer":[1],"explanation":"知识点：平网印花对花操作。套色错位首先应检查网框对花标记是否对准，这是对花准确性的直接依据。色浆黏度影响渗透和渗色；刮刀压力影响给浆量；导带速度影响印花位置一致性但错位首先查对花标记。"},{"id":177,"type":"single","stem":"圆网印花机在更换花色品种时，对圆网清洗后还需进行的关键步骤是","options":["用压缩空气吹干网面水分","检查网孔是否残留色浆","在网面涂一层防锈油","调整圆网与导带间隙"],"answer":[1],"explanation":"知识点：圆网更换清洗操作。清洗后必须检查网孔是否残留色浆，残留会造成新花色缺花或串色。吹干水分是辅助步骤；涂防锈油会影响印花；调整圆网与导带间隙是安装环节，不是清洗后的关键检查。"},{"id":178,"type":"single","stem":"印花色浆中加入尿素的主要作用是","options":["提高色浆的黏稠度","促进染料在汽蒸时固着","防止色浆在网内结皮","增加印花花型的鲜艳度"],"answer":[1],"explanation":"知识点：印花色浆助剂作用。尿素在汽蒸时能吸湿并促进纤维膨化，帮助染料向纤维内部扩散固着。提高黏稠度靠增稠剂；防止结皮靠保湿剂或合理操作；增加鲜艳度主要靠染料选择和工艺控制，尿素不是直接增艳剂。"},{"id":179,"type":"single","stem":"平网印花机刮印时发现花型局部缺花，经检查网孔未堵塞，下一步最应排查的是","options":["刮刀橡胶条是否磨损不平","印花导带是否温度过高","色浆是否存放时间过长","网框张力是否下降"],"answer":[0],"explanation":"知识点：平网印花缺花排查。网孔未堵塞而局部缺花，常见原因是刮刀橡胶条磨损不平导致该处刮印压力不足。导带温度过高影响贴布和干燥；色浆存放过长影响流动性但通常不会只局部缺花；网框张力下降影响整体对花而非局部缺花。"},{"id":180,"type":"single","stem":"圆网印花机生产中突然出现花型整体颜色变浅，色浆供应正常，最可能的原因是","options":["圆网网孔被色浆逐渐堵塞","刮刀压力突然增大","印花导带速度突然降低","圆网内色浆液位升高"],"answer":[0],"explanation":"知识点：圆网印花颜色变浅的成因。色浆供应正常但颜色整体变浅，常见原因是圆网网孔在运行中逐渐被色浆或杂质堵塞，给浆量下降。刮刀压力增大会使颜色加深；导带速度降低会使给浆量相对增加；色浆液位升高一般不会导致颜色变浅。"},{"id":181,"type":"single","stem":"印花车间发现印花布匹上出现周期性圆形色点，与圆网周长一致，最可能的故障环节是","options":["圆网网孔有破损或砂眼","刮刀橡胶条局部缺口","印花导带表面有胶粒","色浆中有未分散的颗粒"],"answer":[0],"explanation":"知识点：圆网印花周期性疵点判断。疵点周期与圆网周长一致，说明问题出在圆网本身，网孔破损或砂眼会造成周期性圆形色点。刮刀缺口造成的是条状或线状疵点；导带胶粒造成的位置与导带周长相关；色浆颗粒造成的是随机分布的点疵。"},{"id":182,"type":"multi","stem":"平网印花机操作中，下列哪些做法有助于减少印花渗色","options":["适当提高色浆黏度","控制刮刀压力不过大","加快刮印速度","保持网框与织物贴合","降低色浆中染料浓度"],"answer":[0,1,3],"explanation":"知识点：平网印花渗色控制。适当提高色浆黏度可减少色浆沿纤维毛细管扩散；控制刮刀压力不过大可避免色浆被过量挤压；保持网框与织物贴合可减少色浆从网框边缘溢出。加快刮印速度会使色浆来不及渗透反而易渗色；降低染料浓度只影响颜色深浅，不能减少渗色。"},{"id":183,"type":"single","stem":"平网印花开机前对花框网版进行擦版操作时，正确的擦版方向是","options":["从刮印面朝网框外侧单向擦","从网框外侧朝刮印面单向擦","在网面来回往复擦","沿网框对角线方向擦"],"answer":[0],"explanation":"擦版应从刮印面朝网框外侧单向进行，避免印花色浆被推入网孔造成堵网；从外侧朝里擦易将杂质压入网孔；来回往复擦会把色浆反复压入网孔；沿对角线擦方向不固定同样易堵网。"},{"id":184,"type":"single","stem":"圆网印花机运行时发现某只圆网出现规律性横向条花，最可能的原因是","options":["圆网内刮刀压力偏小","圆网网孔局部堵塞","印花导带跑偏","磁棒磁场强度偏大"],"answer":[1],"explanation":"圆网网孔局部堵塞会造成该处出浆不足，形成规律性横向条花；刮刀压力偏小表现为整体色浅；导带跑偏影响对花而非规律条花；磁棒磁场偏大反而出浆更足。"},{"id":185,"type":"single","stem":"平网印花刮印时刮刀硬度选择偏软，最容易出现的印花疵病是","options":["花纹轮廓清晰度下降","网框与导带间漏浆","刮印色浆渗入网框背面","印花色浆干燥过快"],"answer":[0],"explanation":"刮刀偏软时刮印压力传递不均，花纹边缘不齐、轮廓清晰度下降；漏浆与网框贴合及色浆粘度有关；渗入网框背面与刮刀硬度关系不大；色浆干燥快慢由环境与配方决定。"},{"id":186,"type":"single","stem":"印花车间平网印花机停机时间较短需要临时停台，对网版上色浆的正确处置是","options":["直接刮净网版后晾干网框","保留色浆并用湿布覆盖网面","用清水冲洗网版后重新加浆","把色浆倒回原浆桶并空网停台"],"answer":[1],"explanation":"短时停台应保留色浆并用湿布覆盖网面，防止网孔处色浆干结堵网；刮净晾干会使网孔残浆干结；清水冲洗会稀释浆料影响下次开机；倒回原浆桶易造成浆料污染。"},{"id":187,"type":"single","stem":"圆网印花时发现印花导带上粘附色浆，正确的处理方式是","options":["停机用刮刀直接铲除导带色浆","用湿布蘸溶剂擦拭后继续开机","开机中加大水洗量冲洗导带","提高印花车速让色浆自行脱落"],"answer":[0],"explanation":"导带粘浆应停机用刮刀铲除，避免刮伤导带或带入后续印花；湿布擦溶剂可能腐蚀导带；开机中加水洗量不能清除已粘附色浆；提高车速无法让色浆自行脱落。"},{"id":188,"type":"single","stem":"平网印花中网框与印花导带之间的贴合状态不良，最容易造成的印花疵病是","options":["花纹色泽偏深","网框边缘出现漏浆印","印花导带出现横向裂纹","网孔出现规律性堵孔"],"answer":[1],"explanation":"网框与导带贴合不良时色浆会从边缘渗漏，产生漏浆印；色泽偏深与刮印压力或色浆浓度有关；导带横向裂纹与机械张力有关；规律性堵孔与网孔清洁有关。"},{"id":189,"type":"single","stem":"圆网印花机磁棒刮印系统中，磁棒的作用是","options":["支撑圆网防止其变形","在圆网内产生刮印压力","对印花导带进行张紧","控制印花色浆的粘度"],"answer":[1],"explanation":"磁棒在磁场作用下对圆网内壁产生刮印压力，完成色浆的刮印；支撑圆网主要靠网端支架；导带张紧由张力装置完成；色浆粘度由配方和调浆控制。"},{"id":190,"type":"single","stem":"印花生产中发现某只平网印花花纹出现位置整体偏移，其他网版花纹正常，正确的排查方向是","options":["检查该网框的定位销与网框夹紧状态","检查印花导带的整体张紧程度","检查全部网版的刮刀硬度是否一致","检查印花色浆的整体粘度"],"answer":[0],"explanation":"单只网版花纹整体偏移多因该网框定位销松动或夹紧不良；导带张紧异常会影响全部网版；刮刀硬度影响花纹清晰度而非整体位置；色浆粘度影响色泽和渗透。"},{"id":191,"type":"single","stem":"平网印花调浆时发现色浆粘度偏高，为使其达到刮印要求，正确的调整方法是","options":["直接加入清水快速稀释","加入适量原浆并缓慢搅拌","加入增稠剂继续搅拌","提高色浆温度使其变稀"],"answer":[1],"explanation":"粘度偏高应加适量原浆缓慢搅拌调节，保持色浆配方稳定；直接加清水会改变色浆浓度和色泽；加增稠剂会进一步升高粘度；加热变稀会改变色浆稳定性。"},{"id":192,"type":"single","stem":"某印花车间平网印花机开机后出现整幅花纹色泽偏浅，刮刀压力、色浆粘度均正常，下一步应优先检查","options":["网框与导带之间的贴合压力","印花导带的运行速度","圆网磁棒的磁场强度","印花车间的相对湿度"],"answer":[0],"explanation":"刮刀压力和色浆粘度正常而整幅偏浅，应优先检查网框与导带贴合压力，贴合不实会导致出浆量不足；导带速度影响干燥；磁棒磁场用于圆网；车间湿度影响干燥而非直接导致整幅偏浅。"},{"id":193,"type":"single","stem":"平网印花开车前，刮刀橡胶条刃口出现轻微凹凸不齐时，正确的处理方式是","options":["用粗砂纸横向打磨刃口至平整","将刮刀翻转180度继续使用","用细砂纸沿刃口纵向轻磨修整","在刃口垫一层胶带补偿凹陷"],"answer":[2],"explanation":"知识点：平网印花刮刀刃口维护。刃口轻微不齐应纵向细磨修整，保持刃口直线度与锋利度。横向粗磨会破坏刃口直线度；翻转使用会改变刮刀角度且未修刃；垫胶带会改变刮印压力分布，均不可取。"},{"id":194,"type":"single","stem":"印花色浆调制时，发现色浆放置后表面结皮、流动性变差，最适宜的处置是","options":["直接加温水稀释后继续使用","补加原糊搅拌均匀后过滤使用","加入适量尿素并充分搅拌后使用","提高色浆温度至60℃以上再用"],"answer":[2],"explanation":"知识点：色浆结皮与保湿。结皮多因水分挥发、保湿不足，加尿素可提高保湿性并帮助染料溶解。直接加温水会改变色浆浓度；只补原糊不能解决结皮；高温会加速部分染料反应或色变。"},{"id":195,"type":"single","stem":"平网印花中，网框上的花纹出现局部缺花，检查发现该处网孔被干浆堵塞，正确的处理是","options":["用硬毛刷蘸浓碱液用力刷洗","用软毛刷蘸温水从反面轻刷疏通","用钢丝球擦洗网面后继续印花","用高压水枪正面冲洗网孔"],"answer":[1],"explanation":"知识点：平网网孔堵塞清理。应软毛刷蘸温水从反面轻刷，避免损伤网纱和感光胶。浓碱用力刷洗会腐蚀网版；钢丝球会划伤网纱；高压水枪正面冲洗易冲击感光胶层。"},{"id":196,"type":"single","stem":"印花车间使用平网印花机印制精细线条花型时，刮刀硬度和角度宜选择","options":["软刮刀、大角度","硬刮刀、小角度","软刮刀、小角度","硬刮刀、大角度"],"answer":[3],"explanation":"知识点：刮刀硬度与角度对印花效果影响。精细线条需要硬刮刀配合较大角度，保证刮印干净、线条清晰。软刮刀或小角度适合大块面给浆，但易造成线条模糊和渗化。"},{"id":197,"type":"single","stem":"圆网印花机在印花过程中突然出现大面积漏印，检查发现圆网内色浆液位过低，正确的处置是","options":["立即停机并补充色浆至规定液位","降低车速继续印花至色浆用完","加大刮刀压力以挤出剩余色浆","向圆网内加清水提高流动性"],"answer":[0],"explanation":"知识点：圆网内色浆液位控制。液位过低会导致给浆不足造成漏印，应先停机补充至规定液位。降速继续会造成批量疵布；加大压力不能弥补缺浆；加清水会改变色浆浓度。"},{"id":198,"type":"single","stem":"平网印花机印制时，发现织物上花纹边缘出现明显渗化，下列调整措施中最直接有效的是","options":["提高刮刀压力","增加色浆含水量","提高色浆黏度","增加刮印次数"],"answer":[2],"explanation":"知识点：印花渗化控制。渗化多因色浆黏度偏低、流动性过强，提高黏度可直接限制色浆扩散。提高压力、增加含水量、增加刮印次数都会加剧渗化。"},{"id":199,"type":"single","stem":"圆网印花机停机较长时间后再开机，发现圆网内壁有干浆结块，正确的清理方式是","options":["用铁铲直接铲除干浆块","用温水浸泡后用软刷清洗","用压缩空气吹落干浆块","用浓酸溶液冲洗圆网内壁"],"answer":[1],"explanation":"知识点：圆网清洗规范。干浆结块应用温水浸泡软化后软刷清洗，保护镍网和感光胶。铁铲会划伤网面；压缩空气不能彻底清除且易扬尘；浓酸会腐蚀圆网。"},{"id":200,"type":"single","stem":"某印花车间平网印花产品出现规律性对花不准，且每版图案偏移方向一致，最可能的原因是","options":["网框变形导致花位偏移","色浆黏度波动","刮刀压力不均","织物张力过大"],"answer":[0],"explanation":"知识点：平网对花不准判断。各版偏移方向一致多因网框变形或网版制作偏差。黏度波动造成渗化差异；刮刀压力不均造成深浅不匀；张力过大造成拉伸变形，均不表现为方向一致的整体偏移。"},{"id":201,"type":"single","stem":"圆网印花机在生产中刮刀发出异常摩擦声并伴有印花不匀，现场操作工下一步最合理的处置是","options":["继续生产并记录异常现象","立即停机检查刮刀与圆网接触状态","加大色浆流量掩盖不匀","降低圆网转速继续观察"],"answer":[1],"explanation":"知识点：圆网印花异常处置。异常摩擦声提示刮刀或圆网状态异常，应立即停机检查，防止损坏圆网和批量疵布。继续生产、加流量、降速观察都会扩大损失或掩盖故障。"},{"id":202,"type":"single","stem":"平网印花机刮印时，刮刀硬度选择的主要依据是","options":["花型精细程度与色浆黏度","网框材质与车间温度","印花车速与烘房长度","坯布幅宽与卷布张力"],"answer":[0],"explanation":"知识点：平网刮刀硬度与花型、色浆的关系。刮刀硬度主要取决于花型精细程度和色浆黏度，精细花型用较硬刮刀，黏度大色浆也需硬刮刀保证刮净。网框材质、车间温度、印花车速、烘房长度、坯布幅宽、卷布张力均不决定刮刀硬度选择，因此其余选项错误。"},{"id":203,"type":"single","stem":"圆网印花机印花时出现规律性对花不准，且偏位量随车速提高而增大，最可能的原因是","options":["圆网闷头与网头齿轮配合松动","圆网镍网网孔局部堵塞","色浆黏度偏低导致渗化","磁棒位置前后偏移未锁紧"],"answer":[0],"explanation":"知识点：圆网传动同步性与对花精度。偏位量随车速增大说明传动链存在间隙，闷头与网头齿轮配合松动会在高速时放大误差。网孔堵塞造成的是缺花或露白，色浆黏度偏低造成渗化模糊，磁棒偏移造成整幅色差或刮印不匀，均不会随车速增大而增大。"},{"id":204,"type":"single","stem":"平网印花中，网框感光胶曝光后显影时发现花型边缘出现锯齿状缺口，首先应检查的环节是","options":["曝光时间是否不足导致胶膜未完全固化","显影水温是否过高冲坏胶膜","感光胶涂布厚度是否均匀","菲林片与网框贴合是否紧密"],"answer":[3],"explanation":"知识点：平网制网曝光贴合质量。锯齿状缺口多因菲林与网框贴合不紧产生光衍射，使边缘欠曝光。曝光不足表现为整片胶膜发软脱落，水温过高表现为大面积胶膜起皱剥离，涂布不匀表现为整幅厚度差异而非边缘锯齿。"},{"id":205,"type":"single","stem":"圆网印花机更换圆网后，正式开始印花前必须进行的操作是","options":["对花并试印小样确认花型位置","直接升速到生产车速运行","调整磁棒角度至最大压力","清洗圆网内壁残留色浆"],"answer":[0],"explanation":"知识点：换网后开机程序。换网后必须对花并试印小样确认各套色位置正确后才能投产。直接升速可能造成大批次废布，磁棒角度应按工艺设定而非最大压力，清洗内壁是换网时的准备动作而非开机前必须单独完成的关键步骤。"},{"id":206,"type":"single","stem":"印花色浆在圆网印花过程中出现堵网，以下处置方式最恰当的是","options":["立即停机用清水冲洗网孔后回用剩余色浆","继续运行加大磁棒压力把堵点顶开","降低车速让色浆有更多时间通过网孔","在色浆中加入少量原糊稀释后继续使用"],"answer":[0],"explanation":"知识点：圆网堵网的正确处置。堵网应立即停机清洗网孔，防止缺花扩大并避免干结。加大磁棒压力会损伤圆网并造成色浆飞溅，降低车速不能解决已堵网孔，加原糊稀释改变色浆配方会影响色光且不能清除堵点。"},{"id":207,"type":"single","stem":"平网印花机刮印后布面出现明显的水渍状色斑，色浆沿花纹边缘向外扩散，最可能的原因是","options":["色浆黏度过低或刮印次数过多","刮刀压力过大导致色浆被挤出","网框离布面间距过大","印花导带胶黏剂涂布过厚"],"answer":[0],"explanation":"知识点：渗化色斑的成因。色浆黏度过低会沿毛细管向外扩散，刮印次数过多也会加剧渗化。刮刀压力过大会使色浆被刮薄而非扩散成水渍状，网框间距过大会造成露白或花型模糊，导带胶过厚影响贴布平整而非渗化。"},{"id":208,"type":"single","stem":"平网印花中，网框回位后布面出现重影，正确的处置是","options":["检查网框升降与刮印行程的配合时序","提高刮刀压力使色浆刮得更干净","增加色浆供应量防止断浆","降低导带运行速度减少布面移动"],"answer":[0],"explanation":"知识点：平网重影的机械原因。重影多因网框升降与刮印行程时序配合不当，网框未完全离开布面时布已前移造成二次印痕。提高刮刀压力、增加色浆量、降低导带速度均不能消除时序错位造成的重影。"},{"id":209,"type":"single","stem":"圆网印花机在生产过程中突然出现整幅横向条纹，条纹间距与圆网周长一致，最可能的原因是","options":["圆网网体局部变形或网孔堵塞形成周期性痕迹","色浆黏度波动造成给浆不匀","印花导带跑偏造成布面张力变化","烘房温度波动造成色光变化"],"answer":[0],"explanation":"知识点：圆网周期性疵点的判断。条纹间距等于圆网周长，说明疵点随圆网每转一周重复一次，属网体局部变形或堵塞。色浆黏度波动、导带跑偏、烘房温度波动均不会产生与圆网周长严格一致的周期。"},{"id":210,"type":"single","stem":"印花车间更换色浆品种时，对圆网和输浆管路的清洗要求是","options":["先用清水冲洗再用少量新色浆置换管路","仅用清水冲洗即可直接换色","用旧色浆冲洗管路后直接换新色浆","用压缩空气吹净管路残留色浆"],"answer":[0],"explanation":"知识点：换色清洗程序。换色应先清水冲洗再以少量新色浆置换，避免残留水稀释新色浆造成色浅。仅清水冲洗会残留水分影响色光，旧色浆冲洗会污染新色浆，压缩空气不能清除黏附色浆且可能损伤管路。"},{"id":211,"type":"single","stem":"印花工在交接班时发现上一班留下的半成品布面有轻微色差但未记录，正确的处置是","options":["对本班首件进行对色确认并记录色差情况","直接按上一班工艺继续生产不干预","自行调整色浆配方弥补色差","将半成品全部退回前道工序"],"answer":[0],"explanation":"知识点：交接班质量控制。发现未记录色差应对首件对色确认并记录，以便追溯和调整。直接继续可能扩大色差，自行改配方缺乏依据，全部退回前道工序处理过重且不符合实际生产流程。"},{"id":212,"type":"single","stem":"平网印花开机前对镍网花筒进行检验时，用来确认花纹是否完整、有无漏花或堵网最直接的方法是","options":["用放大镜逐块观察网面花纹","在网面上均匀涂满色浆后观察透浆情况","用手电筒从网筒内侧向外照射观察透光","用软布蘸水擦拭网面看是否挂丝"],"answer":[2],"explanation":"知识点是平网镍网花筒的透光检验法。从网筒内侧向外照射，透光均匀处说明网孔通透，暗点处即为堵网或网孔缺陷，能直观判断花纹完整性。A放大镜只能看表面花纹轮廓，难以判断网孔是否通透；B涂色浆后观察会污染网面且不能定量判断堵网位置；D蘸水擦拭主要看网面光洁度，与花纹通透性无关。"},{"id":213,"type":"single","stem":"印花色浆在网筒内出现结皮、干涸，导致圆网印花出现规律性缺花，正确的现场处置是","options":["加大刮刀压力把干浆刮掉","停机清洗网筒并调整色浆黏度","向网筒内补加清水稀释结皮","提高车速让结皮来不及附着"],"answer":[1],"explanation":"知识点是圆网印花色浆结皮造成缺花的处置。结皮干涸必须停机清洗网筒，同时检查并调整色浆黏度和保湿措施，才能根本解决。A加压会把干浆块压入网孔造成更严重堵塞；C只加水会破坏色浆配方和发色；D提高车速不能消除已形成的结皮，缺花依旧。"},{"id":214,"type":"single","stem":"平网印花中，网框上的花纹出现连续、方向一致的错位，最可能的原因是","options":["网框张力不足产生变形","刮印速度与网框升降不匹配","网框在印花过程中的位移或定位松动","色浆黏度过高造成拖浆"],"answer":[2],"explanation":"知识点是平网印花对花错位的成因判断。连续且有方向性的错位，多因网框定位松动或印花中网框移动，使每次印花落点偏移同一方向。A张力不足多表现为花纹局部变形而非整体定向错位；B速度不匹配会造成拖浆、发虚；D黏度过高表现为拖尾、糊花。"},{"id":215,"type":"single","stem":"圆网印花机在印花过程中发现网筒某一段出现纵向条状漏印，其余部分正常，首先应检查的部位是","options":["该段对应的刮刀是否有缺口或磨损","整台机的传动皮带是否打滑","印花导带的张力是否均匀","色浆泵的流量是否偏小"],"answer":[0],"explanation":"知识点是圆网纵向条状漏印的排查思路。局部纵向漏印多与刮刀在该位置缺口、磨损或变形有关，使该段无法正常刮压透浆。B传动打滑影响整幅对花；C导带张力影响整体走布；D色浆泵流量不足影响整体给浆量，均不会只造成某一段纵向漏印。"},{"id":216,"type":"single","stem":"印花车间对平网印花网框进行清洗后存放，为防止网面花纹受损和残浆干结，正确的做法是","options":["清洗后立放于专用网架自然晾干","清洗后叠放于地面用薄膜覆盖","清洗后立即用热风近距离吹干","清洗后浸泡在清水中待下次使用"],"answer":[0],"explanation":"知识点是平网网框清洗后的存放规范。清洗后应立放在专用网架上自然晾干，避免网面受压变形和残浆干结。B叠放会使网面受压变形、花纹受损；C近距离热风会使网框受热不均变形；D长期浸泡会损坏网框胶粘和网面张力。"},{"id":217,"type":"single","stem":"圆网印花机印花时，织物上出现周期性、等间距的色点，间距与网筒周长一致，最可能的原因是","options":["网筒网孔局部堵塞","导带表面粘有色浆","刮刀刀口有细小缺口","网筒内色浆有气泡或结块"],"answer":[3],"explanation":"知识点是圆网周期性色点的成因。间距等于网筒周长，说明色点随网筒每转一周出现一次，多因网筒内色浆存在气泡或结块，随转动被刮压到织物上。A堵网造成的是缺花而非色点；B导带粘浆造成的是不规则沾污；C刮刀缺口造成的是纵向条状漏印。"},{"id":218,"type":"single","stem":"平网印花操作中，刮印后网框抬起时出现色浆拉丝、花纹边缘不齐，调整刮印速度和色浆黏度后仍无改善，下一步应重点检查","options":["网框抬升速度与刮刀回退的配合","印花导带的运行速度","网框的目数是否选错","车间相对湿度是否偏低"],"answer":[0],"explanation":"知识点是平网印花拉丝与网框抬升配合的关系。刮印后拉丝、边缘不齐，在排除色浆因素后，多因网框抬升速度与刮刀回退不同步，使网面与织物分离时带起色浆。B导带速度影响走布定位；C目数影响透浆量；D湿度影响色浆干燥，均不是拉丝的主因。"},{"id":219,"type":"single","stem":"某印染厂圆网印花机在生产中发现织物左边缘出现规律性色浆堆积、右边缘正常，操作工首先应检查","options":["左侧网筒端环密封是否失效","印花导带的纠偏装置是否正常","色浆泵的输送管路是否堵塞","网筒两端的给浆管是否对称"],"answer":[1],"explanation":"知识点是圆网印花边缘堆浆的排查。单侧边缘堆浆、另一侧正常，常因导带跑偏或纠偏装置异常，使织物与网筒在该侧贴合过紧、透浆量增大。A端环密封失效多造成两端漏印或漏浆；C管路堵塞影响整体给浆；D给浆管不对称会造成两侧给浆不均但不一定堆浆。"},{"id":220,"type":"single","stem":"印花工在更换圆网网筒时，为保证对花准确，安装后必须首先进行的工作是","options":["对网筒进行对花校准并试印","立即提高车速进入正常生产","向网筒内加满色浆后直接开车","调整刮刀角度到最大压力"],"answer":[0],"explanation":"知识点是圆网网筒更换后的对花程序。新装网筒必须先行对花校准并试印，确认对花准确后才能进入正常生产。B未对花就提车速会造成大量错花次品；C直接加浆开车无法发现对花偏差；D盲目加大刮刀压力会损伤网筒且与对花无关。"},{"id":221,"type":"single","stem":"平网印花生产中，发现花纹局部出现重影、轮廓模糊，而其他部位对花正常，最可能的原因是","options":["该部位网框张力局部不足","色浆黏度整体偏低","刮刀整体压力偏小","印花导带整体张力偏松"],"answer":[0],"explanation":"知识点是平网印花局部重影的成因。局部重影、轮廓模糊多因该部位网框张力局部不足，使网面在刮印时产生回弹位移。B黏度偏低影响整体花纹清晰度；C压力偏小造成整体露底；D导带张力松影响整幅走布，均不会只造成局部重影。"},{"id":222,"type":"multi","stem":"圆网印花机在生产中出现整幅花纹色泽偏浅、露底，下列处置措施中正确的有","options":["检查并适当减小刮刀压力","检查色浆黏度是否偏高并调整","检查网筒网孔是否堵塞并清洗","适当提高刮印速度以增加透浆"],"answer":[1,2],"explanation":"知识点是圆网印花整幅露底的排查与处置。色浆黏度偏高会降低透网性，网孔堵塞会减少透浆量，二者都需检查调整。A刮刀压力偏小才会露底，减小压力会加重问题；D提高刮印速度会缩短刮压时间、减少透浆，反而加重露底。"},{"id":223,"type":"single","stem":"平网印花机刮印时，刮刀压力突然调得过大，最可能直接造成下列哪种印花疵病","options":["花纹色泽变浅","花型边缘渗色扩大","网框内色浆提前干涸","刮印次数自动减少"],"answer":[1],"explanation":"知识点：平网刮印压力与渗色关系。压力过大使色浆过量透过网孔并向花型边缘扩散，产生渗色。A项压力大反而色浆透网多，色泽应偏深而非变浅；C项色浆干涸与刮印压力无直接关系，主要与浆料和停机时间有关；D项刮印次数由设备程序设定，不因压力变化而自动减少。"},{"id":224,"type":"single","stem":"平网印花在连续生产时发现印花织物上出现规律性、与网框尺寸对应的重复色点，最应先检查的是","options":["网框是否粘附色浆滴落","烘筒温度是否偏低","印花车速是否偏快","色浆黏度是否偏高"],"answer":[0],"explanation":"知识点：平网重复性疵点来源判断。与网框尺寸对应的规律色点多为网框底部粘浆后滴落或网框起落带浆所致。B项烘筒温度偏低影响固色，不产生规律色点；C项车速偏快影响透网量，不形成网框周期色点；D项黏度偏高影响渗透，也不产生周期色点。"},{"id":225,"type":"single","stem":"圆网印花中，色浆黏度偏低时对印花效果最典型的影响是","options":["花纹轮廓清晰度下降并易渗边","网孔堵塞频率明显升高","刮刀磨损速度显著加快","圆网与织物间摩擦力增大"],"answer":[0],"explanation":"知识点：色浆黏度与印花清晰度。黏度偏低色浆流动性强，易沿纤维毛细管扩散造成渗边、轮廓模糊。B项堵网多因黏度偏高或浆料结块；C项刮刀磨损与色浆黏度关系不大，主要与刮刀材质和压力有关；D项圆网与织物摩擦力与黏度无直接对应关系。"},{"id":226,"type":"single","stem":"活性染料印花后汽蒸固色时，若汽蒸箱内蒸汽含空气过多，对固色的主要影响是","options":["色浆中染料上染率提高","织物表面产生水渍","固色率下降且色泽变浅","纤维强力明显上升"],"answer":[2],"explanation":"知识点：汽蒸固色与蒸汽质量。空气混入使蒸汽温度下降、湿度不足，活性染料固色反应不充分，固色率下降、色泽变浅。A项空气多会降低上染而非提高；B项水渍多与冷凝水滴落有关，不是空气多的直接结果；D项纤维强力与汽蒸含气量无直接关系。"},{"id":227,"type":"single","stem":"平网印花机在刮印过程中，刮刀行程应设计为","options":["仅覆盖花型最窄处","略大于花型图案的最外边缘","严格等于网框内径","小于花型图案边缘"],"answer":[1],"explanation":"知识点：刮刀行程设计。刮刀行程应略大于花型最外边缘，保证图案边缘色浆充足、得色均匀。A项仅覆盖最窄处会使其他区域缺浆；C项等于网框内径易刮到网框边造成漏浆或损伤；D项小于花型边缘会使边缘缺色。"},{"id":228,"type":"single","stem":"圆网印花生产中，圆网两端出现色浆渗漏，最可能的原因是","options":["圆网内刮刀压力偏小","圆网闷头密封圈磨损","印花磁棒温度偏高","色浆黏度偏低"],"answer":[1],"explanation":"知识点：圆网端部渗漏原因。圆网两端由闷头密封圈密封，密封圈磨损老化后色浆从端部渗出。A项刮刀压力偏小影响透浆量，不导致端部渗漏；C项磁棒温度与端部渗漏无关；D项黏度偏低影响渗边，不是端部渗漏的直接原因。"},{"id":229,"type":"single","stem":"印花织物进入烘筒烘干前，若印花面直接紧贴高温烘筒表面，最容易产生的疵病是","options":["花纹色泽加深","色浆被烫干产生搭色","织物幅宽收缩","色浆黏度下降"],"answer":[1],"explanation":"知识点：印花烘干方式。印花面直接贴高温烘筒，色浆未干即被烫干，易粘附烘筒并产生搭色、色点。A项色泽加深不是直接结果；C项幅宽收缩与张力、温度有关，不是贴烘筒的主要问题；D项黏度下降是浆料温度变化，不是主要疵病。"},{"id":230,"type":"single","stem":"在圆网印花中更换花色时，对圆网内残留色浆的正确处置是","options":["直接加入新色浆继续使用","先洗净圆网再上新色浆","只刮出残浆不清洗","残浆与新浆按比例混合使用"],"answer":[1],"explanation":"知识点：换色操作规范。换色必须先洗净圆网及刮刀系统，防止残浆污染新色造成色差。A项直接加新浆会混色；C项只刮不清洗仍有残留；D项混合使用会改变色光，均不正确。"},{"id":231,"type":"single","stem":"某印花车间平网印花出现大面积色泽不匀，现场记录显示刮刀压力正常、色浆黏度正常，下一步最应优先排查的是","options":["网框绷网张力是否均匀","烘筒蒸汽压力是否稳定","印花车速是否偏低","车间相对湿度是否偏高"],"answer":[0],"explanation":"知识点：印花色泽不匀排查顺序。压力和黏度正常时，网框绷网张力不均会使各区域透浆量差异，造成色泽不匀。B项蒸汽压力影响固色而非直接造成色不匀；C项车速偏低一般使得色加深而非不匀；D项湿度影响干燥，不是色泽不匀的首查项。"},{"id":232,"type":"single","stem":"圆网印花机在运行中突然出现整幅织物规律性横向色条，且每条间距等于圆网周长，最可能的直接原因是","options":["圆网网孔局部堵塞","圆网内刮刀跳动或圆网变形","色浆黏度突然升高","织物张力突然减小"],"answer":[1],"explanation":"知识点：圆网周期性疵点判断。间距等于圆网周长的横向色条，多因圆网转动一周中刮刀跳动或圆网变形造成周期性刮印不匀。A项网孔堵塞会产生局部缺花而非整幅周期色条；C项黏度升高影响透浆量，不形成周长周期；D项张力减小影响花型尺寸，不产生周长周期色条。"},{"id":233,"type":"single","stem":"圆网印花机更换圆网后，开机前必须确认镍网两端与端环的密封状态，其主要目的是","options":["防止色浆从网端渗入网内造成堵网","防止圆网在运转中因端环松动而轴向窜动","防止色浆从网端缝隙漏出污染印花导带与织物","防止刮刀在网内跳动造成印浆不匀"],"answer":[2],"explanation":"知识点为圆网印花机圆网端部密封的作用。镍网与端环密封不良时色浆会从网端缝隙外漏，污染导带和织物，故C对。A堵网是网孔被浆料或杂质堵塞，与端部密封无关。B端环松动属于机械紧固问题，密封状态不决定轴向窜动。D刮刀跳动与刮刀架压力及网内壁状态有关，不是端部密封要解决的问题。"},{"id":234,"type":"single","stem":"印花导带在运行中跑偏，仅靠调整导带张力辊已无法纠正，下一步应优先检查","options":["印花刮刀的硬度是否与当前花型匹配","导带两侧的纠偏装置与检测探头是否正常","圆网内的色浆液位是否偏低","织物进布端的张力是否过大"],"answer":[1],"explanation":"知识点为印花导带跑偏的排查顺序。张力辊调整无效时，应优先检查纠偏装置和检测探头，因导带跑偏多由纠偏系统失效引起，故B对。A刮刀硬度影响印花效果，不纠正导带跑偏。C色浆液位影响给浆，与导带跑偏无关。D进布张力过大可能引起织物起皱，不是导带跑偏的主因。"},{"id":235,"type":"single","stem":"活性染料印花后汽蒸固色时，若汽蒸箱内蒸汽含空气量偏高，对固色效果的主要影响是","options":["色浆中的染料发生泳移造成白芯","固色率下降且得色变浅","织物上的尿素分解产生氨味","印花糊料发生交联导致手感变硬"],"answer":[1],"explanation":"知识点为活性染料汽蒸固色对蒸汽质量的要求。蒸汽中混入空气会降低实际蒸汽分压和湿度，使纤维膨化不足、染料与纤维反应不充分，固色率下降、得色变浅，故B对。A泳移发生在烘干阶段，与汽蒸含空气无直接关系。C尿素分解产氨是高温长时间汽蒸的副反应，不是含空气的主要后果。D糊料交联与汽蒸含空气无关。"},{"id":236,"type":"single","stem":"涂料印花时，若印花浆中交联剂用量按工艺要求加入后仍出现牢度不足，最先应复核的环节是","options":["印花后焙烘的温度与时间是否达到工艺设定","印花刮刀的刃口角度是否偏小","圆网目数是否与花型精细度匹配","印花导带的运行速度是否偏快"],"answer":[0],"explanation":"知识点为涂料印花交联剂与焙烘条件的关系。交联剂需在足够焙烘温度和时间下才能与黏合剂及纤维交联形成牢度，若焙烘不足则牢度下降，故A对。B刮刀角度影响上浆量，不决定交联反应程度。C圆网目数影响花型清晰度，与牢度无直接因果。D导带速度影响产量和烘干，但牢度不足应优先查焙烘条件是否达标。"},{"id":237,"type":"single","stem":"平网印花中，花型出现规律性横向重复的缺浆段，最可能的原因是","options":["网框上的花型排列间距设置错误","刮刀行程中某一段压力突然减小","导带表面在该位置有局部凹陷","贴布浆在织物某一段涂布过厚"],"answer":[1],"explanation":"知识点为平网印花缺浆疵病的规律性判断。横向规律性缺浆段与刮刀行程中压力突变对应，压力减小处给浆不足，故B对。A花型排列间距影响花位，不造成缺浆。C导带局部凹陷可能造成该处印花不实，但表现为位置固定而非按花回重复。D贴布浆过厚影响贴布平整，不直接造成缺浆。"},{"id":238,"type":"single","stem":"圆网印花机在印花过程中发现某只圆网内色浆液位持续下降但印花花型颜色反而变深，应优先判断","options":["该圆网网孔被杂质堵塞","该圆网端部密封圈破损漏浆","该圆网对应的刮刀压力被调大","该圆网内色浆黏度被调低"],"answer":[2],"explanation":"知识点为圆网印花给浆量与花型深浅的关系。刮刀压力调大后单位时间透浆量增加，液位下降快且得色变深，故C对。A网孔堵塞会使液位下降慢、颜色变浅，与现象相反。B端部漏浆会使液位下降，但漏出的浆不印在花型上，颜色不会变深。D黏度调低会使浆料更易流动，但单独降低黏度通常使颜色变浅而非变深。"},{"id":239,"type":"single","stem":"某印染厂平网印花车间在印制精细线条花型时出现线条边缘锯齿状，工艺员排查后确认网框张力正常、刮刀角度合适，下一步最应检查","options":["印花色浆的黏度是否偏低导致渗化","网版感光胶的曝光与显影是否使网孔边缘不齐","印花导带的贴布浆是否涂布均匀","印花后的烘干温度是否偏高"],"answer":[1],"explanation":"知识点为平网印花精细花型边缘质量的排查。网框张力和刮刀角度正常时，线条锯齿多源于网版制版环节，感光胶曝光显影不良会使网孔边缘不齐，故B对。A黏度偏低表现为渗化模糊而非锯齿。C贴布浆不匀影响贴布平整，不造成线条锯齿。D烘干温度偏高影响手感或泳移，与线条边缘形状无关。"},{"id":240,"type":"single","stem":"圆网印花中，色浆在圆网内出现结皮并造成间歇性堵网，下列处理方式中正确的是","options":["向圆网内补加清水稀释结皮色浆","停机后彻底清洗圆网并检查色浆配方与存放时间","提高刮刀压力把结皮强行刮过网孔","在圆网内加入消泡剂消除结皮"],"answer":[1],"explanation":"知识点为圆网印花色浆结皮堵网的处理。结皮说明色浆已部分干燥或配方稳定性差，应停机清洗并核查配方与存放时间，故B对。A加水稀释不能溶解已形成的结皮，还可能改变色浆性能。C提高压力会把结皮压入网孔造成更严重堵塞。D消泡剂用于消泡，对结皮无效。"},{"id":241,"type":"single","stem":"印花织物在圆网印花后出现花型轮廓处颜色深、中心处颜色浅的“白芯”现象，最可能的原因是","options":["印花后烘干速度过快导致染料泳移","圆网内色浆液位过高","印花刮刀压力过小导致透浆不足","圆网与导带之间的间隙过大"],"answer":[0],"explanation":"知识点为印花烘干与染料泳移的关系。烘干过快时水分由花型中心向边缘迁移，带动染料向边缘聚集，形成边缘深、中心浅的白芯，故A对。B液位过高只会增加给浆量，不造成白芯。C刮刀压力过小表现为整体颜色偏浅，不是边缘深中心浅。D圆网与导带间隙过大影响印花对花，不产生白芯。"},{"id":242,"type":"multi","stem":"关于圆网印花机刮刀（刮浆刀）的安装与使用，下列做法中正确的有","options":["刮刀胶条刃口应平整无缺口，安装后与圆网内壁贴合良好","刮刀压力应根据花型面积和色浆黏度进行调整","刮刀角度一经设定后在整个订单中不再改变","刮刀使用后应清洗干净并悬挂存放，避免刃口受压变形","刮刀与圆网内壁之间应保持明显间隙以减少磨损"],"answer":[0,1,3],"explanation":"知识点为圆网印花刮刀的安装、调整与保养。A刃口平整贴合是保证印浆均匀的前提，正确。B压力需随花型和黏度调整，正确。D清洗后悬挂可防止刃口变形，正确。C刮刀角度应随花型和工艺调整，固定不变不科学，错误。E刮刀需与圆网内壁贴合刮浆，留明显间隙会造成漏印或刮不净，错误。"},{"id":243,"type":"single","stem":"平网印花机刮印时，刮刀橡胶条的刃口应保持何种状态才能保证给浆均匀且不刮伤网版","options":["刃口平直无缺口并定期研磨","刃口略带弧形以利收浆","刃口柔软下垂以贴合网面","刃口保留毛边以增加携浆"],"answer":[0],"explanation":"知识点是刮刀维护。平直无缺口的刃口能保证刮印压力一致、给浆均匀，也不会钩伤网版；略带弧形会改变刮印角度、造成两边与中间给浆不均；柔软下垂会因压力不足漏印；毛边会钩丝并划伤网版，属错误做法。"},{"id":244,"type":"single","stem":"圆网印花机网筒内径与刮刀架安装时，为防止印花过程中网筒跳动，刮刀架应","options":["居中并使刮刀压力均匀分布","偏向网筒一侧以加大局部压力","卸下部分配重以减轻网筒负荷","抬高刮刀架使刀口离网面更远"],"answer":[0],"explanation":"知识点是圆网刮印装置安装。刮刀架居中、压力均匀可避免网筒受力偏心而跳动；偏向一侧会造成网筒偏磨和印花不匀；卸配重会降低压力稳定性；抬高刀口会因压力不足漏印，均属错误做法。"},{"id":245,"type":"single","stem":"某批涤纶针织布平网印花后发现花型边缘渗化，排查时应优先检查","options":["刮刀压力是否偏小","网版感光胶厚度是否过大","印花色浆黏度是否偏低","印花台板温度是否偏高"],"answer":[2],"explanation":"知识点是渗化（溢浆）成因。色浆黏度偏低会降低其抗渗化能力，先在边缘渗出，故优先查黏度；刮刀压力偏小会造成漏印而非渗化；感光胶过厚会缩小花纹开口；台板温度偏高主要影响干燥与堵网，均与渗化主因不符。"},{"id":246,"type":"single","stem":"圆网印花机更换新圆网后试印，发现花型沿圆周方向出现规律性断线，最可能的原因是","options":["圆网网孔局部堵塞","圆网与印花导带不同步","刮刀橡胶条过软","色浆中消泡剂加量过多"],"answer":[1],"explanation":"知识点是圆网传动同步。圆周方向规律性断线多为圆网转速与导带（布速）不匹配造成；网孔堵塞表现为固定位置缺花而非规律断线；刮刀过软影响给浆量而非规律断线；消泡剂过量主要引起缩孔、针孔。"},{"id":247,"type":"single","stem":"平网印花中，网版与印花导带之间的间隙（网距）设置过大，最容易出现的缺陷是","options":["花型颜色偏深","网版脱版时带起色浆","花型边缘清晰度下降","印花台板温度升高"],"answer":[2],"explanation":"知识点是网距对印花质量的影响。网距过大使刮印后网版回弹距离变长，色浆在花纹边缘扩散，导致清晰度下降；颜色偏深与网距关系不大；脱版带浆多与色浆黏度及刮刀角度有关；台板温度与网距无关。"},{"id":248,"type":"single","stem":"印花车间对花时发现平网花回之间出现错位，操作工应首先确认","options":["对花系统各网版定位是否松动","色浆是否已充分搅拌","刮刀硬度是否合适","台板胶是否涂刷均匀"],"answer":[0],"explanation":"知识点是平网对花。花回错位首选排查对花定位机构是否松动或移位；色浆搅拌影响色差与均匀性；刮刀硬度影响给浆量；台板胶影响贴布牢度，三者均不直接造成花回错位。"},{"id":249,"type":"single","stem":"圆网印花机在印花过程中突然出现大面积漏印空白，现场排查刮刀压力正常、网筒未堵，下一步应检查","options":["供浆泵是否正常供浆","网筒是否装反","印花导带是否跑偏","烘房温度是否偏低"],"answer":[0],"explanation":"知识点是圆网供浆系统。压力与网筒均正常而大面积漏印，多因供浆中断，故查供浆泵；网筒装反会致花型镜像而非空白；导带跑偏影响对边；烘房温度属后道，与漏印无关。"},{"id":250,"type":"single","stem":"平网印花刮刀刮印行程结束后，网版抬起时若色浆被带回网版上，正确的处置是","options":["适当降低色浆黏度并调整刮刀角度","加大刮刀压力并加快刮印速度","增加网距并减少刮印次数","提高台板温度并加消泡剂"],"answer":[0],"explanation":"知识点是脱版带浆的控制。色浆被带回多因黏度偏高或刮刀角度不当，应适度降黏度并调角度；加大压力、加快速度会加剧带浆；增加网距与减少刮印次数无助于此；台板温度与消泡剂针对堵网和泡沫。"},{"id":251,"type":"single","stem":"某印花工在圆网印花机运行中发现导带跑偏，正确的第一步处置是","options":["立即停机并检查导带纠偏装置","继续生产并手动扶正导带","加大印花速度使导带自行回正","关闭纠偏气源再观察导带走向"],"answer":[0],"explanation":"知识点是导带跑偏处置。跑偏会致印花错位甚至撕带，应先停机检查纠偏装置；继续生产或手动扶正易造成安全事故和批量废布；加速不会使导带回正；关闭纠偏气源会使跑偏加剧。"},{"id":252,"type":"single","stem":"平网印花中，同一花回不同网版印出的颜色深浅不一，最可能的原因是","options":["各网版刮刀压力或角度不一致","各网版感光胶品牌不同","各网版网框材质不同","各网版存放时间不同"],"answer":[0],"explanation":"知识点是网版间给浆一致性。刮刀压力或角度不一致直接改变给浆量，造成同批色深差异；感光胶品牌、网框材质、存放时间对同批色深影响很小，不是主因。"},{"id":253,"type":"single","stem":"印花色浆调制后放置一段时间出现结皮，正确的处理是","options":["搅拌均匀后过滤再用","直接加水稀释后使用","加热使结皮溶解后使用","撇去结皮后立即使用不搅拌"],"answer":[0],"explanation":"知识点是色浆使用管理。结皮经搅拌分散并过滤后可避免堵网和色点；直接加水会改变黏度与色浓度；加热可能破坏色浆稳定性；只撇皮不搅拌会使上下浓度不均。"},{"id":254,"type":"single","stem":"平网印花开机前检查刮刀时，发现刮刀刃口有细小缺口，正确的处置方式是","options":["用油石将刃口整体打磨平整后继续使用","调低刮刀压力后继续使用","把该刮刀换到印花速度较慢的机台使用","在缺口处贴胶带补偿后继续使用"],"answer":[0],"explanation":"知识点：平网印花刮刀刃口状态直接影响得色均匀度。刃口有缺口会造成该处刮浆不匀、出现规律性色条，必须整体打磨平整后使用，故A对。B错在缺口仍在，低压只能减轻不能消除色条；C错在缺口是刮刀自身缺陷，换机台仍会产生色条；D错在胶带补偿会改变刃口角度且易脱落，属无效做法。"},{"id":255,"type":"single","stem":"圆网印花机运行时发现印花图案出现规律性横向色档，最可能的原因是","options":["圆网目数选择偏高","色浆黏度略低于工艺要求","圆网与导带速比设置不当","刮刀压力比工艺值偏大"],"answer":[2],"explanation":"知识点：圆网印花横向色档多与圆网转速和导带线速不匹配有关。圆网与导带速比不当会使每个圆网周长对应处重复出现色档，故C对。A错在目数偏高主要影响透浆量和清晰度，不产生横向规律色档；B错在黏度偏低多导致渗边、花纹变粗；D错在压力偏大多造成得色变浅或网版磨损，不是横向色档的主因。"},{"id":256,"type":"single","stem":"平网印花中，网框上的感光胶膜局部脱落露出网纱，正确处理是","options":["用同色色浆在脱落处点补后继续印花","用感光胶补涂脱落处并重新曝光固化","用透明胶带从网框背面粘住脱落处","把脱落处对应的花回在印花程序中跳过"],"answer":[1],"explanation":"知识点：平网印花网版胶膜破损需修补固化，否则漏浆造成疵点。正确做法是用感光胶补涂并重新曝光固化，故B对。A错在色浆点补不能封堵网孔，运行中仍会漏浆；C错在透明胶带不耐刮刀反复摩擦且会移位；D错在跳过花回会造成图案缺失，不能算合格品。"},{"id":257,"type":"single","stem":"圆网印花中，色浆在圆网内出现明显结皮、流动性下降，操作工首先应","options":["加大刮刀压力把结皮刮碎","向圆网内补加清水稀释色浆","停机取出圆网清洗并检查色浆状态","提高圆网转速让色浆循环加快"],"answer":[2],"explanation":"知识点：圆网内色浆结皮会堵塞网孔并造成色点、色条，必须先停机清洗并检查色浆。故C对。A错在加压会把结皮压入网孔造成堵网；B错在随意加水会破坏色浆黏度和色光；D错在提速不能解决结皮，反而加剧甩浆和堵网。"},{"id":258,"type":"single","stem":"关于平网印花刮印次数与得色的关系，下列说法正确的是","options":["刮印次数越多，得色越深且不会影响清晰度","刮印次数增加，得色加深但过多会影响花纹清晰度","刮印次数只影响产量，对得色深浅没有影响","刮印次数增加，得色变浅因为色浆被刮回"],"answer":[1],"explanation":"知识点：平网印花刮印次数影响色浆转移量。增加刮印次数可加深得色，但次数过多会使色浆渗扩、花纹边缘模糊，故B对。A错在忽视清晰度下降；C错在刮印次数对得色有明显影响；D错在刮印次数增加总体是得色加深而非变浅。"},{"id":259,"type":"single","stem":"圆网印花机换网后，发现新上网的圆网印花位置比原网偏移约1毫米，正确的调整方式是","options":["调整圆网两端轴承座位置使花位对正","在印花程序中整体平移花回数据补偿","通过加大导带张力把花位拉正","改变圆网与导带的速比来纠正偏移"],"answer":[0],"explanation":"知识点：圆网印花花位偏移需通过圆网机械位置校正。调整圆网两端轴承座位置可使花位对正，故A对。B错在程序中平移会改变全部花回对位关系；C错在导带张力影响跑偏和张力稳定，不用于花位校正；D错在速比影响色档和拉伸，不解决固定偏移。"},{"id":260,"type":"single","stem":"印花车间使用平网印花机印制大批量订单时，为防止网框变形影响对花，最合理的做法是","options":["每印完一色就把网框拆下平放","网框上机前检查平整度并按规定存放","把网框叠放以减少占地面积","用重物压在网框上防止翘曲"],"answer":[1],"explanation":"知识点：平网网框变形会造成对花不准。应上机前检查平整度并按规定方式存放，故B对。A错在频繁拆装反而增加磕碰和变形机会；C错在叠放受压易使网框翘曲；D错在重物压框会损伤网纱和框体，属不当做法。"},{"id":261,"type":"single","stem":"圆网印花中，刮刀与圆网接触压力过大，最可能造成的印花疵点是","options":["花纹边缘出现渗色","圆网网孔堵塞产生色点","得色变浅且圆网磨损加快","色浆在导带上形成拖尾"],"answer":[2],"explanation":"知识点：圆网刮刀压力过大会减少色浆转移量并加速圆网磨损。故C对。A错在渗色多与色浆黏度低、给浆量大有关；B错在堵网多因色浆结皮或杂质；D错在拖尾多与导带粘性、色浆流变性有关，不是刮刀压力过大的典型表现。"},{"id":262,"type":"single","stem":"平网印花对花时，发现第二色与第一色在织物横向有规律性错位，且随印花长度增加而加大，最可能的原因是","options":["网框张力不足导致网纱松弛","导带跑偏未及时纠正","色浆黏度波动过大","刮刀角度设置不一致"],"answer":[1],"explanation":"知识点：横向规律性错位且随长度加大，多因导带跑偏累积造成。故B对。A错在网框张力不足多造成局部花型变形；C错在黏度波动影响渗色和得色，不造成规律性横向位移；D错在刮刀角度影响得色均匀，不产生累积横向错位。"},{"id":263,"type":"single","stem":"圆网印花机在印花过程中突然出现大面积漏浆，操作工检查发现圆网端部密封圈磨损，正确的处置是","options":["降低圆网内色浆液位继续生产","停机更换端部密封圈后重新对花","用胶带缠绕圆网端部临时密封","提高刮刀压力把漏浆刮回网内"],"answer":[1],"explanation":"知识点：圆网端部密封圈磨损会造成端部漏浆，必须停机更换并重新对花。故B对。A错在降液位只能减少漏浆量，不能消除疵品；C错在胶带不耐磨且影响圆网转动平衡；D错在加压不能封堵端部间隙，反而加剧漏浆。"},{"id":264,"type":"single","stem":"平网印花色浆调配后放置时间过长，使用前操作工应重点检查的项目是","options":["色浆的温度是否接近室温","色浆有无结皮、沉淀和黏度变化","色浆的pH是否低于织物要求","色浆的包装桶是否密封完好"],"answer":[1],"explanation":"知识点：色浆放置过久会出现结皮、沉淀和黏度变化，直接影响印花质量。故B对。A错在温度只是影响因素之一，不是放置后首要检查项；C错在pH需按工艺控制，但放置后主要风险是结皮沉淀；D错在包装密封属储存要求，不是使用前针对放置过久的重点检查。"},{"id":265,"type":"single","stem":"平网印花机在刮印过程中出现局部花纹渗色模糊，检查发现该处网框与导带间有微小间隙，最应先做的处置是","options":["在该处网框背面加垫薄纸片临时压紧","降低刮刀压力并放慢刮印速度继续生产","停机重新贴版并检查网框平整度","把色浆黏度调高后再试印一版"],"answer":[2],"explanation":"知识点是平网印花网框与导带贴合不良导致渗色的处置。网框与导带间有间隙属于贴版或网框变形问题，应停机重新贴版并检查网框平整度，才能从根源消除间隙。加垫薄纸片只是临时凑合，不能保证整版贴合且易移位。降低刮刀压力和放慢速度不能消除间隙，渗色仍会存在。调高色浆黏度会改变印花效果，且间隙未除仍会渗色。"},{"id":266,"type":"single","stem":"圆网印花机开机前检查镍网网孔，发现网面有轻微折痕但未破裂，正确的处置是","options":["用细砂纸把折痕处打磨平整后装机","折痕处涂少量修补胶后直接装机使用","更换该圆网，折痕网不得上机","把折痕转到非花型区域后继续使用"],"answer":[2],"explanation":"知识点是圆网印花对镍网完好性的要求。镍网有折痕会影响刮印均匀性和网孔透浆，且运行中易破裂，应更换该圆网。细砂纸打磨会破坏网孔和镍层。涂修补胶会堵塞网孔并留下印痕。把折痕转到非花型区仍存在运行破裂风险，不能作为处置依据。"},{"id":267,"type":"single","stem":"圆网印花中磁棒刮印与刮刀刮印相比，磁棒刮印的主要特点是","options":["刮印压力沿网幅方向更均匀且可调","只能用于涂料印花不能用于活性印花","刮印时色浆不会进入网孔内部","对圆网目数没有适用范围要求"],"answer":[0],"explanation":"知识点是圆网印花磁棒与刮刀两种刮印方式的区别。磁棒由磁场吸持，压力沿幅向均匀且可通过电流调节，适合宽幅均匀刮印。磁棒刮印并非只能用于涂料印花，活性印花也可使用。色浆同样要进入网孔才能透印。磁棒刮印对圆网目数仍有适用匹配要求，并非无限制。"},{"id":268,"type":"single","stem":"平网印花色浆在使用中出现结皮，正确的预防措施是","options":["在色浆中加少量清水稀释降低黏度","印花间歇时用湿布盖住网面并勤搅拌色浆","把刮刀压力调大以压碎结皮","将印花速度提高到色浆来不及结皮"],"answer":[1],"explanation":"知识点是平网印花色浆结皮的预防。结皮多因色浆表面失水，间歇时用湿布覆盖网面并勤搅拌可减少结皮。加清水会改变色浆黏度和得色量。调大刮刀压力会把结皮压入网孔造成堵网。提高速度不能从根本上防止结皮，反而影响印透。"},{"id":269,"type":"single","stem":"某批织物在圆网印花后出现规律性等距色点，间距与圆网周长一致，最可能的原因是","options":["导带表面有残留色浆未洗净","圆网网孔局部堵塞形成缺印","圆网内刮刀有缺口造成条痕","对花不准使两网叠印错位"],"answer":[1],"explanation":"知识点是圆网印花常见疵点的成因判断。色点间距与圆网周长一致，说明疵点随圆网每转一周重复一次，多因网孔局部堵塞在透浆时形成色点或缺印。导带残留多造成拖色或沾污，不呈与网周一致的等距。刮刀缺口造成的是纵向条痕而非等距点。对花不准造成的是花型错位，不是等距色点。"},{"id":270,"type":"single","stem":"平网印花机导带胶在使用一段时间后粘性下降，正确的维护做法是","options":["在导带表面补涂一层新胶继续使用","用清水冲洗导带后直接恢复使用","停机除胶清洗后重新上胶并控制胶层均匀","在胶面撒滑石粉以减少织物粘附"],"answer":[2],"explanation":"知识点是平网印花导带胶的维护。粘性下降应停机除胶清洗后重新上胶，并保证胶层均匀，才能稳定贴布。补涂新胶会造成胶层厚薄不均、贴布不平。清水冲洗不能恢复粘性。撒滑石粉会降低粘性，使织物贴不牢。"},{"id":271,"type":"single","stem":"圆网印花中刮印压力过大最可能造成的直接后果是","options":["色浆透网量不足出现露底","网孔透浆过多造成渗色和色深不匀","圆网与导带之间产生打滑","花型对花精度自动提高"],"answer":[1],"explanation":"知识点是圆网印花刮印压力对透浆量的影响。压力过大会使透浆过多，造成渗色、色深不匀甚至糊边。透网量不足通常是压力过小或堵网所致。打滑与压力关系不是主要后果。对花精度由对花机构保证，不会因压力增大而提高。"},{"id":272,"type":"single","stem":"平网印花中相邻两网框之间出现露白，检查对花机构正常，最可能的原因是","options":["两网框之间的网版张力不一致","色浆黏度过低流平过度","导带运行速度设置过快","刮刀角度设置过小"],"answer":[0],"explanation":"知识点是平网印花露白与网版张力的关系。对花机构正常却出现相邻网框间露白，多因两网版张力不一致导致实际印位偏移。色浆黏度过低会造成渗色而非露白。导带速度过快影响印透和套准稳定性，但不是露白的直接主因。刮刀角度过小影响透浆量，不直接造成网框间露白。"},{"id":273,"type":"single","stem":"印花车间在更换圆网花色品种时，对旧色浆和旧网的正确处置是","options":["旧色浆过滤后与新色浆混合使用","旧色浆按品种回用并清洗旧网后分类存放","旧色浆直接倒入下水道，旧网随意堆放","旧色浆留在网内待下次同色直接使用"],"answer":[1],"explanation":"知识点是印花换色时色浆和网的管理。旧色浆应按品种回用，旧网清洗后分类存放，便于下次使用并防止混色。新旧色浆随意混合会造成色光变化。倒入下水道污染环境且浪费。留在网内待用会结皮堵网并影响下次开机。"},{"id":274,"type":"single","stem":"活性染料印花后汽蒸固色，若汽蒸时间明显不足，最可能出现的后果是","options":["染料固色率下降，水洗后色浅","色浆在织物上提前结皮","花型轮廓变得更加清晰","纤维强力显著提高"],"answer":[0],"explanation":"知识点是活性染料印花汽蒸固色的作用。汽蒸使染料在纤维上固着，时间不足则固色率下降，水洗后大量浮色被洗去而色浅。结皮是色浆干燥问题，与汽蒸时间无关。汽蒸不足不会使轮廓更清晰，反而可能发色不匀。纤维强力不会因汽蒸时间短而提高。"},{"id":275,"type":"single","stem":"圆网印花机运行中导带跑偏，操作工首先应","options":["立即停车并调整导带纠偏装置","加大印花车速让导带自行回正","在导带边缘加垫布条阻挡跑偏","继续生产并在班后统一处理"],"answer":[0],"explanation":"知识点是圆网印花导带跑偏的处置。导带跑偏应立即停车调整纠偏装置，防止导带撕裂或花型错位。加大车速不能纠正跑偏反而加剧。加垫布条属于临时凑合，可能造成导带损伤。继续生产会扩大故障和废布。"},{"id":276,"type":"single","stem":"圆网印花机运行中，印花导带表面粘附的色浆残渣未及时清除，最易引发的疵病是","options":["传色","搭色","露白","折皱"],"answer":[1],"explanation":"导带残浆会使织物背面沾色，形成搭色。传色是网与网之间色浆相互传递；露白是网孔堵塞或刮印不匀；折皱与导带清洁无直接关系。"},{"id":277,"type":"single","stem":"平网印花中，色浆黏度偏低时对印花效果的主要影响是","options":["花纹轮廓清晰度下降","网版使用寿命缩短","刮刀磨损加快","色浆透网量减少"],"answer":[0],"explanation":"黏度偏低时色浆流动性大，印后易向四周扩散，轮廓清晰度下降。网版寿命、刮刀磨损与黏度关系不大；透网量减少通常是黏度偏高造成的。"},{"id":278,"type":"single","stem":"圆网印花机更换圆网后，正式印花前需进行对花调整，其首要目的是","options":["校正各网间花回位置","调整刮刀与网壁间隙","检查圆网镍网壁厚","设定烘干温度曲线"],"answer":[0],"explanation":"对花调整的核心是让各圆网的花回在织物上准确套合。刮刀间隙属于刮印参数；壁厚是来料检验项；烘干温度属于后处理参数，均非对花目的。"},{"id":279,"type":"single","stem":"平网印花机网框起版时，若网版与织物间距（网距）过小，刮印过程中容易出现","options":["网版粘带织物","色浆透网量偏少","花回间距拉大","刮刀跳动加剧"],"answer":[0],"explanation":"网距过小，刮印后网版不能及时弹离织物，容易粘带织物造成移位或粘色。透网量偏少多与黏度高、压力小有关；花回间距由传动决定；刮刀跳动多与刮刀安装或网面张力有关。"},{"id":280,"type":"single","stem":"圆网印花中，某色位出现规律性横向断续露白，最可能的原因是","options":["圆网网孔局部堵塞","刮刀压力整体偏大","色浆黏度整体偏低","导带张力偏小"],"answer":[0],"explanation":"网孔局部堵塞会造成规律性露白。压力偏大易渗色；黏度偏低易渗色或搭色；导带张力偏小主要影响织物运行平整度，不直接造成该规律露白。"},{"id":281,"type":"single","stem":"平网印花机刮印时刮刀角度过小（过于平躺），对印花质量的影响是","options":["色浆透网量增加且易渗色","色浆透网量减少且易露白","刮刀对网面磨损减小","花回套印精度提高"],"answer":[0],"explanation":"刮刀角度过小时对色浆的推挤作用增强，透网量增加并易渗色。角度过大才会导致透网量减少、露白。角度与套印精度无直接因果关系。"},{"id":282,"type":"single","stem":"圆网印花机在生产过程中发现某只圆网内色浆液面下降过快，而印花图案颜色偏浅，下一步应优先检查","options":["圆网网孔是否堵塞","刮刀压力是否偏小","色浆黏度是否偏高","圆网转速是否偏快"],"answer":[0],"explanation":"液面下降过快说明色浆从网内流出异常，若同时颜色偏浅，常见原因是网孔部分堵塞使色浆无法正常透网而积聚。压力偏小、黏度偏高也会使颜色偏浅，但不会使液面下降过快；转速偏快主要影响刮印次数。"},{"id":283,"type":"single","stem":"平网印花车间某批织物印后出现规律性等距的色点疵病，间距与网框长度一致，最可能的原因是","options":["网框接版处网纱松弛","刮刀行程速度过快","色浆中混入气泡","印花导带跑偏"],"answer":[0],"explanation":"疵点间距与网框长度一致，说明问题出在网框接版部位，网纱松弛会造成该处透浆异常形成色点。刮印速度、气泡、导带跑偏产生的疵点通常不呈现与网框等距的规律。"},{"id":284,"type":"single","stem":"圆网印花机突然停机后重新启动，若未先进行空车对花检查就直接印花，最容易产生的后果是","options":["花回套印错位","色浆黏度升高","圆网网孔堵塞","导带张力下降"],"answer":[0],"explanation":"停机再启动时各圆网相位可能发生偏移，未对花直接印花会造成套印错位。黏度、网孔、导带张力是停机期间可能变化的其他因素，但不是未对花直接印花的直接后果。"},{"id":285,"type":"single","stem":"平网印花中，为提高花纹轮廓清晰度，下列工艺调整中最合理的是","options":["适当提高色浆黏度并控制刮印压力","降低色浆黏度并加大刮印压力","提高刮印速度并减小网距","降低网版张力并加大刮印压力"],"answer":[0],"explanation":"适当提高黏度可抑制色浆扩散，控制压力可避免过量透浆，两者配合有利于轮廓清晰。降低黏度或加大压力都会加剧渗色；减小网距或降低网版张力会破坏刮印稳定性。"},{"id":286,"type":"multi","stem":"圆网印花机印花过程中出现传色疵病，下列处置措施中合理的有","options":["检查并清洁相邻圆网刮刀与网面","适当调整色浆黏度以减小相互渗透","检查圆网间色浆供应是否串流","加大刮刀压力以压住前色","提高印花车速以缩短接触时间"],"answer":[0,1,2],"explanation":"传色是相邻色位色浆相互传递造成的。清洁网面刮刀、调整黏度、检查色浆串流都是针对性措施。加大刮刀压力会加剧透浆和传色；提高车速不能阻断色浆传递，均不合理。"},{"id":287,"type":"single","stem":"平网印花机在刮印过程中出现网框内色浆局部渗漏到织物背面，最先应检查的部位是","options":["刮刀压力是否过大","网版感光胶是否有砂眼","印花导带张力是否偏低","色浆黏度是否偏高"],"answer":[1],"explanation":"网版感光胶存在砂眼时，色浆会从砂眼处直接透过网孔漏到织物背面，是局部渗漏的常见原因；刮刀压力过大会造成图案扩边而非局部渗漏；导带张力偏低影响对花精度；色浆黏度偏高会影响透网性而非造成局部漏印。"},{"id":288,"type":"single","stem":"印花色浆调制后放置一段时间出现表面结皮，正确的处理方式是","options":["直接搅拌后继续使用","加入适量清水稀释后使用","刮去结皮并搅拌均匀后使用","提高色浆温度使其溶解"],"answer":[2],"explanation":"表面结皮是色浆中水分挥发与粘合剂成膜所致，应刮去结皮再搅拌均匀使用；直接搅拌会把结皮打碎混入色浆造成堵网；加清水稀释会改变色浆配方；提高温度会加速结皮与堵网。"},{"id":289,"type":"single","stem":"平网印花在印制精细线条图案时，为获得清晰的轮廓效果，较合理的刮刀选择是","options":["硬度较高、刃口较尖的刮刀","硬度较低、刃口较圆的刮刀","硬度中等、刃口圆钝的刮刀","任意硬度但刃口较宽的刮刀"],"answer":[0],"explanation":"精细线条要求色浆透网量少而集中，硬刮刀配尖刃口有利于轮廓清晰；软刮刀和圆钝刃口会导致色浆铺展、线条变粗；宽刃口会扩大色浆接触面积，均不利于精细线条。"},{"id":290,"type":"single","stem":"圆网印花机运行中，发现某一圆网内色浆液面持续下降且印花处出现明显色浅，最可能的原因是","options":["圆网网孔部分堵塞","刮刀压力偏小","圆网内色浆供给不足","磁棒磁力偏小"],"answer":[2],"explanation":"液面持续下降说明色浆消耗大于补给，供浆不足导致上浆量减少、色浅；网孔堵塞不会造成液面持续下降；刮刀压力偏小和磁力偏小会造成色浅但不会使液面持续下降。"},{"id":291,"type":"single","stem":"印花导带在使用一段时间后出现局部老化龟裂，继续使用最容易引发的质量问题是","options":["印花图案颜色偏深","印花图案出现规律性色点","印花图案出现对花不准","印花图案出现不规则色斑"],"answer":[1],"explanation":"导带龟裂处会积存色浆并在运行中转移到织物上，形成规律性色点；色深与色浆浓度、刮印量有关；对花不准多与传动或网版位置有关；不规则色斑多与色浆或网版问题有关。"},{"id":292,"type":"single","stem":"平网印花机在刮印时刮刀运行速度过快，最可能造成的印花缺陷是","options":["图案轮廓模糊、色浆透网不足","图案颜色偏深、色浆堆积","图案出现规律性色点","图案出现纵向接版错位"],"answer":[0],"explanation":"刮刀速度过快会使色浆来不及透网，造成透网不足、轮廓模糊；颜色偏深是刮印量过大所致；规律性色点与导带或网版有关；纵向接版错位与同步传动有关。"},{"id":293,"type":"single","stem":"圆网印花中，色浆黏度偏低时最容易出现的印花缺陷是","options":["图案轮廓清晰度下降、色浆渗化","图案颜色偏浅、露底","图案出现规律性色点","图案出现纵向接版错位"],"answer":[0],"explanation":"色浆黏度偏低流动性大，易沿织物毛细管渗化，造成轮廓不清；颜色偏浅露底多与上浆量不足有关；规律性色点与导带有关；纵向接版错位与传动有关。"},{"id":294,"type":"single","stem":"印花车间在更换色浆品种时，对平网网版的清洗操作要求是","options":["用清水冲洗网版表面即可","用专用清洗剂清洗网版两面并检查网孔","用压缩空气吹净网版表面色浆","用干布擦拭网版表面色浆"],"answer":[1],"explanation":"更换色浆品种需彻底清除网版两面残留色浆，专用清洗剂配合检查网孔可防止残留串色；清水冲洗、压缩空气吹、干布擦拭均不能彻底清除网孔内残留色浆。"},{"id":295,"type":"single","stem":"圆网印花机在正常运行时突然出现整幅织物上色浆量明显增多、颜色偏深，最先应检查的是","options":["圆网内色浆液面高度","刮刀压力是否突然增大","导带运行速度是否降低","织物张力是否减小"],"answer":[1],"explanation":"刮刀压力突然增大直接导致上浆量增加、颜色偏深，是整幅色深突变的常见原因；液面高度、导带速度、织物张力对整幅上浆量的影响不如刮刀压力直接。"},{"id":296,"type":"single","stem":"平网印花机在印制过程中发现网版图案局部堵塞，正确的处理方式是","options":["加大刮刀压力强行刮印","停机用清洗剂清洗堵塞网孔","提高色浆温度后继续刮印","降低刮印速度继续刮印"],"answer":[1],"explanation":"网孔堵塞应停机清洗，用清洗剂溶解堵塞物恢复网孔通畅；加大刮刀压力会损伤网版且不能解决堵塞；提高温度可能加速色浆结膜；降低刮速不能清除堵塞物。"},{"id":297,"type":"single","stem":"平网印花开机前，刮刀橡胶条的刃口出现轻微毛刺但未破损，正确的处理方式是","options":["用细砂纸蘸水轻磨刃口并冲洗干净后使用","把刮刀反过来装夹继续使用","在毛刺处涂少量机油后直接开机","将刮刀压力调大压住毛刺后开机"],"answer":[0],"explanation":"知识点：刮刀刃口状态直接影响印花均匀度。刃口轻微毛刺可用细砂纸蘸水修磨并清洗，避免带屑上机。刮刀反装会改变刃口角度导致刮印不匀；涂机油会污染色浆；调大压力会加剧刃口磨损和色点。"},{"id":298,"type":"single","stem":"圆网印花机运行中，某只圆网的花回出现规律性左右错位，最可能的原因是","options":["圆网闷头与网体粘接松动造成网体窜动","色浆黏度偏低造成渗网过快","磁棒压力偏小造成给浆不足","烘筒温度偏高造成花纹变形"],"answer":[0],"explanation":"知识点：圆网传动精度与花回对位。规律性左右错位多因闷头松动使网体相对传动齿轮窜动。色浆黏度低、磁棒压力小影响的是给浆量而非横向对位；烘筒温度高影响的是织物和色浆固着，不会造成规律性左右错位。"},{"id":299,"type":"single","stem":"印花车间调换色浆品种时，对平网网版和刮刀的正确清洗顺序是","options":["先用清水冲去残浆，再用专用清洗剂洗，最后清水冲净晾干","先用专用清洗剂泡洗，再用清水冲净，最后用压缩空气吹干","先用热水冲，再用清洗剂洗，最后用回用色浆润版","先用清水冲，再用清洗剂洗，最后用新色浆润版备用"],"answer":[0],"explanation":"知识点：换色清洗程序。正确顺序是清水预冲去残浆、专用清洗剂溶解残留、清水冲净晾干，避免残色污染新色浆。先用清洗剂会使残浆被稀释扩散；用回用色浆或新色浆润版会引入残色和杂质，污染下一批色浆。"},{"id":300,"type":"single","stem":"平网印花贴布时，发现织物与台板之间局部有气泡未贴实，正确的下一步处置是","options":["用刮板从气泡边缘向排气方向赶压贴实","在气泡处补涂少量贴布胶后继续印","把该段织物理平后直接印花","降低台板温度使胶层变软后印花"],"answer":[0],"explanation":"知识点：贴布质量与印花疵点。气泡未贴实会造成该处花纹渗花或错位，应用刮板从气泡边缘向排气方向赶压贴实。补涂胶会造成局部胶层过厚；直接印花会形成渗花疵点；降低台板温度会使贴布胶黏性下降，反而更贴不实。"}]}