CN113846496B - 一种分散染料免蒸洗清洁印花工艺 - Google Patents
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Abstract
本发明涉及一种分散染料免蒸洗清洁印花工艺,使用免水洗染料进行圆网滚筒印花,免水洗染料包括:染料3‑4%、免水洗糊料2%和余量水,免水洗糊料包括:丙烯酸高聚物42%、稳定剂4%、乳液分散剂4%和溶剂油50%,印花色浆的黏度控制在30000cps;圆网滚筒印花的承压辊为可加温承压辊,承压辊的加温范围覆盖于该次印花的边界,承压辊的加温温度控制在60℃,印花车速控制在50m/min;印花后的烘干温度控制在180℃。免水洗糊料具有一定的黏度,承压辊为可加温承压辊,使得每一次印花的色浆快干,能够部分地抵消面料的毛细管效应而引起的渗化,从而保证花纹的轮廓光洁度,避免布料表面粘附糊料、浮色、杂质,也就免去了蒸化和水洗,减少了还原清洗工序所用的各项消耗。
Description
技术领域
本发明属于印花领域,尤其涉及一种分散染料免蒸洗清洁印花工艺。
背景技术
基布面料都是白色或者其他单一色彩,视觉效果较低,因此人们开发了印花面料,印花面料是一种带有图案的面料,而它的图案是各种各样,又好看及时尚,突破了纯色布料的单一性,也极大的丰富了人们的物质生活享受。
随着国家对印染行业环保生产的监控力度越来越严,节能减排成为印染行业长久发展的重点。长期以来,传统涤纶丝印花布都是经过高温蒸化后还原清洗,将坯布表面的糊料、浮色、杂质等全部洗干净后才能进行定型整理,无形中产生了大量的清洗废水,对废水处理产生较高的成本和外排压力。因此考虑减少印花之后的水洗,但是不经过水洗,布面残留的糊料会导致成品手感偏硬,糊料越多,手感越硬,而且糊料的增多还会影响后道涂层的耐水压指标。现有的印花面料没有经过脱糊和表面浮色还原清洗,在后道的防水整理和涂层整理中对色牢度会产生严重的影响。
发明内容
本发明提供一种分散染料免蒸洗清洁印花工艺,通过调整糊料,降低印花色浆的黏度,在每一次印花的时候对承压辊进行加温,使得每一次印花的色浆快干,部分抵消面料的毛细管效应而引起的渗化,避免色浆晕开,保证花纹的轮廓光洁度,使得每一次印花的叠加更加精确,从而避免布料表面粘附糊料、浮色、杂质,也就免去了蒸化和水洗。
本发明的具体技术方案为:一种分散染料免蒸洗清洁印花工艺,使用免水洗染料进行滚筒印花,免水洗染料包括:染料3-4%、免水洗糊料2%和余量水,免水洗糊料包括:丙烯酸高聚物42%、稳定剂4%、乳液分散剂4%和溶剂油50%,免水洗染料的黏度控制在30000cps;滚筒印花的承压辊为可加温承压辊,承压辊的加温范围覆盖于该次印花的边界,承压辊的加温温度控制在60℃,印花车速控制在50m/min;印花后的烘干温度控制在180℃。
免水洗染料具有一定的黏度,能够部分地抵消面料的毛细管效应而引起的渗化,从而保证花纹的轮廓光洁度,经过烘干,面料上的有色糊料薄膜对面料有较大的钻着力,但是本申请的免水洗染料的黏度较正常使用的印花糊料的黏度低,从而改善色浆在布面的残余现象,给后道的免蒸洗打下基础;免水洗糊料中使用丙烯酸高聚物、稳定剂、乳液分散剂和溶剂油,使得印花色浆中的染料能均匀地分散在原糊中,并被稀释到规定的浓度;承压辊为可加温承压辊,且承压辊的加温范围覆盖印花的边界,这样,使得每一次印花的色浆快干,也抵消面料的毛细管效应而引起的渗化,避免色浆晕开,保证花纹的轮廓光洁度,使得每一次印花的叠加更加精确,从而避免布料表面粘附糊料、浮色、杂质,也就免去了蒸化和水洗,减少了还原清洗工序所用的各项消耗。
作为优选,烘干之后进行定型,定型温度控制205℃,车速控制75m/min,超喂-0.8%,张力控制在70kg。有了承压辊的加温和印花色浆的先快干,可以适当降低定型时的温度,同时加快定型的车速,提高印染效率。
作为优选,印花时,印花圆筒与承压辊之间的压力控制在0.3MPa,吸浆速率50kg/h,渗透率≥85%,上浆率≥3%。印花色浆黏度降低之后,通过增加印花圆筒与承压辊之间的压力,保证印花色浆能粘着到面料上。
作为优选,承压辊表面嵌加温带,承压辊内部设置加温管路,加温管路与加温带相贴,加热采用油加热。
作为优选,承压辊表面的加温带围出的形状与对应的印花圆筒上的印花凹纹的区域形状相对应,并覆盖印花凹纹的区域边界。对于需要多次重叠印花的部位,只需在边界部位进行加温快干,重叠部位保留前一次色浆的原态。
作为优选,对于只需单次印花的部位,加温带以触角的形式从区域边界延伸至边界内。通过触角的形式相边界内延伸对色浆进行加温快干。
本发明的有益效果是:免水洗染料料具有一定的黏度,能够部分地抵消面料的毛细管效应而引起的渗化,从而保证花纹的轮廓光洁度,经过烘干,面料上的有色糊料薄膜对面料有较大的钻着力,但是本申请的免水洗染料的黏度较正常使用的印花糊料的黏度低,从而改善色浆在布面的残余现象,给后道的免蒸洗打下基础;免水洗糊料中使用丙烯酸高聚物、稳定剂、乳液分散剂和溶剂油,使得印花色浆中的染料能均匀地分散在原糊中,并被稀释到规定的浓度;承压辊为可加温承压辊,且承压辊的加温范围覆盖印花的边界,这样,使得每一次印花的色浆快干,也抵消面料的毛细管效应而引起的渗化,避免色浆晕开,保证花纹的轮廓光洁度,使得每一次印花的叠加更加精确,从而避免布料表面粘附糊料、浮色、杂质,也就免去了蒸化和水洗,减少了还原清洗工序所用的各项消耗。产品的熨烫升华牢度提升约0.5级,花型轮廓清晰度比还原水洗产品提升25%左右。
具体实施方式
下面通过具体实施例,对本发明作进一步的描述。
实施例
一种分散染料免蒸洗清洁印花工艺,使用免水洗染料进行滚筒印花,免水洗染料包括:染料3-4%、免水洗糊料2%和余量水,免水洗糊料包括:丙烯酸高聚物42%、稳定剂4%、乳液分散剂4%和溶剂油50%,免水洗染料的黏度控制在30000cps。
滚筒印花的承压辊为可加温承压辊,承压辊的加温范围覆盖于该次印花的边界,承压辊的加温温度控制在60℃,印花车速控制在50m/min。印花时,印花圆筒与承压辊之间的压力控制在0.3MPa,吸浆速率50kg/h,渗透率≥85%,上浆率≥3%。承压辊表面嵌加温带,承压辊内部设置加温管路,加温管路与加温带相贴,加热采用油加热。承压辊表面的加温带围出的形状与对应的印花圆筒上的印花凹纹的区域形状相对应,并覆盖印花凹纹的区域边界。对于只需单次印花的部位,加温带以触角的形式从区域边界延伸至边界内。
印花后进行烘干,烘干温度控制在180℃。定型温度控制205℃,车速控制75m/min,超喂-0.8%,张力控制在70kg。
以上所述,仅是本发明的较佳实施例,并非对本发明作任何限制,凡是根据本发明技术实质对以上实施例所作的任何简单修改、变更以及等效变换,均仍属于本发明技术方案的保护范围。
Claims (3)
1.一种分散染料免蒸洗清洁印花工艺,其特征在于,使用免水洗染料进行滚筒印花,免水洗染料包括:染料3-4%、免水洗糊料2%和余量水,免水洗糊料包括:丙烯酸高聚物42%、稳定剂4%、乳液分散剂4%和溶剂油50%,免水洗染料的黏度控制在30000cps;滚筒印花的承压辊为可加温承压辊,承压辊的加温范围覆盖于该次印花的边界,承压辊的加温温度控制在60℃,印花车速控制在50m/min;印花后的烘干温度控制在180℃;承压辊表面嵌加温带,承压辊内部设置加温管路,加温管路与加温带相贴,加热采用油加热;承压辊表面的加温带围出的形状与对应的印花圆筒上的印花凹纹的区域形状相对应,并覆盖印花凹纹的区域边界;对于只需单次印花的部位,加温带以触角的形式从区域边界延伸至边界内。
2.根据权利要求1所述的一种分散染料免蒸洗清洁印花工艺,其特征在于,烘干之后进行定型,定型温度控制215℃,车速控制65m/min,超喂-0.8%,张力控制在70kg。
3.根据权利要求1所述的一种分散染料免蒸洗清洁印花工艺,其特征在于,印花时,印花圆筒与承压辊之间的压力控制在0.3MPa,吸浆速率50kg/h,渗透率≥85%,上浆率≥3%。
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