染色+印花=印染 染色和印花有什么区别

2025-03-06 19:37:37
推荐回答(2个)
回答1:

1、在印花与染色操作中,染色加工用的是染料水溶液,一般不加增稠性糊料或仅加入少量糊料;而印花用的是色浆,色浆是在染料溶液或分散液中加入较多的增稠性糊料调成的具有一定黏度的浆状物,以防止印花时由于花纹渗化而造成花型轮廓不清、花型失真以及印后烘燥时染料的泳移。2、染色时(特别是浸染),织物在染浴中有较长的作用时间,使染料能较充分地扩散、渗透到纤维中去完成染着过程。而印花时染料在浆中,不易扩散渗透,所以印花后要经过后处理的汽蒸或焙烘等手段来提高染料的扩散速率,帮助染料染着纤维。3、染色时染料浓度一般不高,染料溶解问题不太大,通常不加助溶剂。印花时色浆中的染料、化学助剂的浓度比一般染浴中的浓度要高得多,加之含有大量糊料,造成了染料溶解困难,所以印花浆中要加助溶剂如尿素、酒精、溶解盐b等。4、印花和染色所用染料大致相同,但也有一些是专门用于印花的染料,如印花用活性染料(国产p型活性染料等)、稳定不溶性偶氮染料、可溶性还原染料等。5、染色时如果需要拼色,一般要求用同类型染料进行拼色,很少用两种不同类型的染料拼色(染混纺织物时例外)。而印花则可以在同一纺织品上采用几种不同类型的染料进行共同印花,如:涂料与不溶性偶氮染料同印、活性染料与不溶性偶氮染料同印、活性染料与快磺素同印、不溶性偶氮染料与缩聚染料同印等,有时也可在同一色浆中采用不同类型的染料进行同浆印花,如:涂料与不溶性偶氮染料同浆、分散染料与活性染料同浆等。再加上有拔染印花、防染印花和防印印花等多种工艺,因此印花工艺设计有别于染色。印花工作者必须深刻认识各种染料和助剂的特性,利用染料和助剂相互问的矛盾和相容性为产品服务,印制出一些具有特殊风格的印花产品。6、印花织物有白地印花,或拔白、防白印花的产品,因此要求印花布半制品前处理类似于漂白布半制品的白度要求,印花后一般还要吃漂水,而染色布半制品对白度要求较低,尤其是染深浓色时前处理可以不漂白。7、染色半制品要求有较好的毛细管效应,以利于染色时染料向纤维内部扩散、渗透。印花加工时,印花和烘燥是连续的,染料作用时间短,又要求印花处花纹色泽均匀、轮廓清晰、线条光洁、没有断线。因此,对印花半制品而言,不仅毛效要均匀且具有良好的“瞬时毛效”,而且前处理加工每一步都很重要,只有获得良好的半制品质量,才能保证印花质量,因此印花半制品的前处理要求比染色半制品要高。8、染色时对织物的纬斜控制要求不高。印花时则不能有纬斜,尤其是对格子形、横条形、正方形或人物类等花型,对半制品纬斜要求很严格,对织物的门幅也应有一定要求,以免在印花后拉幅时产生花斜和织物上花纹图案变形。9、印花对坯布疵点的掩盖性比染色好,尤其是一些紊乱花型对有的坯布织疵具有良好的掩盖作用。10、对有色纺织品来说,染色制品要求色泽均匀丰满,鲜艳透芯,而印花制品则要求图案明朗大方,花型轮廓清晰,花鲜地白,色泽饱满,具有艺术性。以上资料由温州印花厂整理发布。

回答2:

普通服装水性印花的色浆,和您讲的印染印花色浆是一样的吗?谢谢

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