CN107190538B - 一种涤棉混纺织物的湿法转移印花工艺 - Google Patents
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Abstract
本发明提供了一种涤棉混纺织物的湿法转移印花工艺,涉及印染领域,包括印花纸涂抹改性剂、印花纸涂抹隔离剂、制备转移印花纸、转印压轧和固色后得到成品,本发明通过对印花纸改性,大大提高了印花纸的强度、平滑度和吸湿性,后面的转印过程中,所转印图案花型逼真、花纹细致、层次清晰、立体感强;隔离剂能够减少印花纸纤维对染料的吸附作用,提高染料印花上色率,还能提高转印花纹图案到织物上的时间;将目前普遍的织物浸轧碱液工序换成向织物喷洒碱液,大大减少了碱液用量,减少了生产成本和环保压力;转印时,控制转印参数,织物表观得色和色牢度高,且强力下降也在可接受的范围内。
Description
技术领域
本发明涉及印染领域,具体涉及一种涤棉混纺织物的湿法转移印花工艺。
背景技术
印染时织物加工产业链的重大技术环节,它决定了纺织品的最终品质与市场价值,目前印染技术生产过程中未能实现精细化控制,染料利用率低,污水排放量大。圆平网印花生产,每吨织物耗水200吨左右,且其用水只是作为一种反应介质,所以由于其粗放式生产工艺,最终载带大量废液染料成为污水废水,印染生产经济效益和环境保护矛盾日益突出。
目前印染行业对织物进行印花主要采用热转移印花的方式,但是热转移印花存在以下弊端:一是存在环境污染;二是印花质量难以保障;三是由于电热辊加热到210℃高温需要大量的能耗,因而与目前全社会倡导的节约型节能型经济精神相悖。
目前国内已经开始出现湿法转移印花,这是一种全新的印花方式,它将印刷技术与纺织品印染技术结合在一起,实现了各种天然纤维和化学纤维的转移印花,它是一种相对来说少耗能,少人工的清洁生产工艺。它对于减少印染行业的三废排放,提升国产纺织品的国际市场竞争力具有重要意义,但是目前该工艺也存在一定的缺陷。
发明内容
(一)解决的技术问题
针对现有技术的不足,本发明提供了一种涤棉混纺织物的湿法转移印花工艺,本发明环境友好、节约能源,且织物印花具有高印花图案色牢度、高清晰度、高鲜亮度和优异的耐日晒耐洗涤效果的优点。
(二)技术方案
为实现以上目的,本发明通过以下技术方案予以实现:
一种涤棉混纺织物的湿法转移印花工艺,包括以下步骤:
(1)将20-30份的羟丙基甲基纤维素、20-30份的海藻酸钠和10-20份的纳米级SiO2加入到40-50份的清水中,搅拌20-40min后,得到改性剂,将所述改性剂均匀涂抹到印花纸表面,再将印花纸放入烘箱中干燥,控制烘箱温度50-70℃,干燥时间40-60min;
(2)向干燥后的印花纸表面涂抹隔离剂,所述隔离剂的涂布面密度为3-6g/m2,涂抹结束后,进行隔离剂固化,最后进行轧光平整;
(3)用分散染料对印花纸进行印花,制成转移印花纸;
(4)往涤棉混纺织物上均匀喷洒碱液后,再将转移印花纸与涤棉混纺织物进行复合,开启转印装置进行压轧,控制转移印花纸与涤棉混纺织物的运行速度为5-20m/s,控制转印压力0.5-1MPa,转印结束后,将转移印花纸与涤棉混纺织物分离,得到印花后的涤棉混纺织物;
(5)将印花后的涤棉混纺织物烘干,再汽蒸固色20-40min,汽蒸固色温度为150-180℃,再经水洗晾干后即可得到所述印花涤棉混纺织物成品。
优选地,所述步骤(1)中改性剂的涂层厚度为0.15-0.25mm。
优选地,所述步骤(2)中的隔离剂为丙烯酸-苯乙烯共聚体系隔离剂。
优选地,所述步骤(2)中的隔离剂固化温度为100-120℃,固化时间为15-25s。
优选地,所述步骤(4)中碱液的pH为11-13。
优选地,所述步骤(5)中的印花后的涤棉混纺织物烘干温度为180-200℃,时间为2-5min。
(三)有益效果
本发明提供了一种涤棉混纺织物的湿法转移印花工艺,具有以下优点:
(1)在转移印花过程中,首先要把图案、花纹印刷在转移印花纸上,形成一层相应色彩、花纹的薄膜,然后再由转移纸转印到印刷品表面,因此转移印花纸的表面高分子物质转移性能对于印花图案的再现性起着关键作用。本发明通过对印花纸改性,大大提高了印花纸的强度、平滑度和吸湿性,后面的转印过程中,所转印图案花型逼真、花纹细致、层次清晰、立体感强。
(2)隔离剂能够减少印花纸纤维对染料的吸附作用,提高染料印花上色率,还能提高转印花纹图案到织物上的时间,不仅解决了转移印花纸在转移印花时,纸上染料残留量过大的难题,还提高了生产效率。
(3)将目前普遍的织物浸轧碱液工序换成向织物喷洒碱液,大大减少了碱液用量,减少了生产成本和环保压力。
(4)转印时,控制转移印花纸与涤棉混纺织物的运行速度为5-20m/s,控制转印压力0.5-1MPa,织物表观得色和色牢度高,且强力下降也在可接受的范围内,继续提高运行速度和压力,虽然表观得色继续提高,但是强度下降超出可接受范围。
具体实施方式
为使本发明实施例的目的、技术方案和优点更加清楚,下面将结合本发明实施例,对本发明实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例是本发明一部分实施例,而不是全部的实施例。基于本发明中的实施例,本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例,都属于本发明保护的范围。
实施例1:
一种涤棉混纺织物的湿法转移印花工艺,包括以下步骤:
(1)将25份的羟丙基甲基纤维素、25份的海藻酸钠和15份的纳米级SiO2加入到45份的清水中,搅拌25min后,得到改性剂,将改性剂均匀涂抹到印花纸表面,涂层厚度为0.2mm,再将印花纸放入烘箱中干燥,控制烘箱温度60℃,干燥时间50min;
(2)向干燥后的印花纸表面涂抹丙烯酸-苯乙烯共聚体系隔离剂,隔离剂的涂布面密度为5g/m2,涂抹结束后,进行隔离剂固化,固化温度为105℃,固化时间为20s,最后进行轧光平整;
(3)用分散染料对印花纸进行印花,制成转移印花纸;
(4)往涤棉混纺织物上均匀喷洒pH为12的碱液后,再将转移印花纸与涤棉混纺织物进行复合,开启转印装置进行压轧,控制转移印花纸与涤棉混纺织物的运行速度为15m/s,控制转印压力0.8MPa,转印结束后,将转移印花纸与涤棉混纺织物分离,得到印花后的涤棉混纺织物;
(5)将印花后的涤棉混纺织物烘干,烘干温度为190℃,时间为3min,再汽蒸固色30min,汽蒸固色温度为170℃,再经水洗晾干后即可得到所述印花涤棉混纺织物成品。
实施例2:
一种涤棉混纺织物的湿法转移印花工艺,包括以下步骤:
(1)将20份的羟丙基甲基纤维素、20份的海藻酸钠和10份的纳米级SiO2加入到40份的清水中,搅拌20min后,得到改性剂,将改性剂均匀涂抹到印花纸表面,涂层厚度为0.25mm,再将印花纸放入烘箱中干燥,控制烘箱温度50℃,干燥时间40min;
(2)向干燥后的印花纸表面涂抹丙烯酸-苯乙烯共聚体系隔离剂,隔离剂的涂布面密度为3g/m2,涂抹结束后,进行隔离剂固化,固化温度为100℃,固化时间为25s,最后进行轧光平整;
(3)用分散染料对印花纸进行印花,制成转移印花纸;
(4)往涤棉混纺织物上均匀喷洒pH为11的碱液后,再将转移印花纸与涤棉混纺织物进行复合,开启转印装置进行压轧,控制转移印花纸与涤棉混纺织物的运行速度为15m/s,控制转印压力0.5MPa,转印结束后,将转移印花纸与涤棉混纺织物分离,得到印花后的涤棉混纺织物;
(5)将印花后的涤棉混纺织物烘干,烘干温度为180℃,时间为5min,再汽蒸固色20min,汽蒸固色温度为160℃,再经水洗晾干后即可得到所述印花涤棉混纺织物成品。
实施例3:
一种涤棉混纺织物的湿法转移印花工艺,包括以下步骤:
(1)将30份的羟丙基甲基纤维素、30份的海藻酸钠和10份的纳米级SiO2加入到50份的清水中,搅拌40min后,得到改性剂,将改性剂均匀涂抹到印花纸表面,涂层厚度为0.15mm,再将印花纸放入烘箱中干燥,控制烘箱温度70℃,干燥时间60min;
(2)向干燥后的印花纸表面涂抹丙烯酸-苯乙烯共聚体系隔离剂,隔离剂的涂布面密度为6g/m2,涂抹结束后,进行隔离剂固化,固化温度为110℃,固化时间为25s,最后进行轧光平整;
(3)用分散染料对印花纸进行印花,制成转移印花纸;
(4)往涤棉混纺织物上均匀喷洒pH为13的碱液后,再将转移印花纸与涤棉混纺织物进行复合,开启转印装置进行压轧,控制转移印花纸与涤棉混纺织物的运行速度为20m/s,控制转印压力1MPa,转印结束后,将转移印花纸与涤棉混纺织物分离,得到印花后的涤棉混纺织物;
(5)将印花后的涤棉混纺织物烘干,烘干温度为180℃,时间为2min,再汽蒸固色35min,汽蒸固色温度为150℃,再经水洗晾干后即可得到所述印花涤棉混纺织物成品。
实施例4:
一种涤棉混纺织物的湿法转移印花工艺,包括以下步骤:
(1)将23份的羟丙基甲基纤维素、27份的海藻酸钠和12份的纳米级SiO2加入到43份的清水中,搅拌30min后,得到改性剂,将改性剂均匀涂抹到印花纸表面,涂层厚度为0.2mm,再将印花纸放入烘箱中干燥,控制烘箱温度55℃,干燥时间45min;
(2)向干燥后的印花纸表面涂抹丙烯酸-苯乙烯共聚体系隔离剂,隔离剂的涂布面密度为4g/m2,涂抹结束后,进行隔离剂固化,固化温度为120℃,固化时间为15s,最后进行轧光平整;
(3)用分散染料对印花纸进行印花,制成转移印花纸;
(4)往涤棉混纺织物上均匀喷洒pH为13的碱液后,再将转移印花纸与涤棉混纺织物进行复合,开启转印装置进行压轧,控制转移印花纸与涤棉混纺织物的运行速度为5m/s,控制转印压力0.6MPa,转印结束后,将转移印花纸与涤棉混纺织物分离,得到印花后的涤棉混纺织物;
(5)将印花后的涤棉混纺织物烘干,烘干温度为200℃,时间为4min,再汽蒸固色40min,汽蒸固色温度为180℃,再经水洗晾干后即可得到所述印花涤棉混纺织物成品。
实施例5:
一种涤棉混纺织物的湿法转移印花工艺,包括以下步骤:
(1)将28份的羟丙基甲基纤维素、23份的海藻酸钠和15份的纳米级SiO2加入到48份的清水中,搅拌35min后,得到改性剂,将改性剂均匀涂抹到印花纸表面,涂层厚度为0.25mm,再将印花纸放入烘箱中干燥,控制烘箱温度65℃,干燥时间55min;
(2)向干燥后的印花纸表面涂抹丙烯酸-苯乙烯共聚体系隔离剂,隔离剂的涂布面密度为4g/m2,涂抹结束后,进行隔离剂固化,固化温度为115℃,固化时间为20s,最后进行轧光平整;
(3)用分散染料对印花纸进行印花,制成转移印花纸;
(4)往涤棉混纺织物上均匀喷洒pH为13的碱液后,再将转移印花纸与涤棉混纺织物进行复合,开启转印装置进行压轧,控制转移印花纸与涤棉混纺织物的运行速度为10m/s,控制转印压力1MPa,转印结束后,将转移印花纸与涤棉混纺织物分离,得到印花后的涤棉混纺织物;
(5)将印花后的涤棉混纺织物烘干,烘干温度为200℃,时间为4min,再汽蒸固色25min,汽蒸固色温度为160℃,再经水洗晾干后即可得到所述印花涤棉混纺织物成品。
性能测试:
实施例1-5实施例制作的印花织物性能检测对比结果,如表1所示:
表1:检测对比结果
综上,本发明实施例的耐皂洗色牢度和耐摩擦色牢度均达到5级,强力损失也在可接受范围内,说明该涤棉混纺织物的湿法转移印花工艺具有很好的实用性。
需要说明的是,在本文中,诸如第一和第二等之类的关系术语仅仅用来将一个实体或者操作与另一个实体或操作区分开来,而不一定要求或者暗示这些实体或操作之间存在任何这种实际的关系或者顺序。而且,术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含,从而使得包括一系列要素的过程、方法、物品或者设备不仅包括那些要素,而且还包括没有明确列出的其他要素,或者是还包括为这种过程、方法、物品或者设备所固有的要素。在没有更多限制的情况下,由语句“包括一个……”限定的要素,并不排除在包括所述要素的过程、方法、物品或者设备中还存在另外的相同要素。
以上实施例仅用以说明本发明的技术方案,而非对其限制;尽管参照前述实施例对本发明进行了详细的说明,本领域的普通技术人员应当理解:其依然可以对前述各实施例所记载的技术方案进行修改,或者对其中部分技术特征进行等同替换;而这些修改或者替换,并不使相应技术方案的本质脱离本发明各实施例技术方案的精神和范围。
Claims (5)
1.一种涤棉混纺织物的湿法转移印花工艺,其特征在于,包括以下步骤:
(1)将20-30份的羟丙基甲基纤维素、20-30份的海藻酸钠和10-20份的纳米级SiO2,依次加入到40-50份的清水中,搅拌20-40min后,得到改性剂,将所述改性剂均匀涂抹到印花纸表面,再将印花纸放入烘箱中干燥,控制烘箱温度50-70℃,干燥时间40-60min;
(2)向干燥后的印花纸表面涂抹隔离剂,所述隔离剂为丙烯酸-苯乙烯共聚体系隔离剂,所述隔离剂的涂布面密度为3-6g/m2,涂抹结束后,进行隔离剂固化,最后进行轧光平整;
(3)用分散染料对印花纸进行印花,制成转移印花纸;
(4)往涤棉混纺织物上均匀喷洒碱液后,再将转移印花纸与涤棉混纺织物进行复合,开启转印装置进行压轧,控制转移印花纸与涤棉混纺织物的运行速度为5-20m/s,控制转印压力0.5-1MPa,转印结束后,将转移印花纸与涤棉混纺织物分离,得到印花后的涤棉混纺织物;
(5)将印花后的涤棉混纺织物烘干后,再汽蒸固色20-40min,汽蒸固色温度为150-180℃,再经水洗晾干后即可得到所述印花涤棉混纺织物成品。
2.如权利要求1所述的涤棉混纺织物的湿法转移印花工艺,其特征在于,所述步骤(1)中改性剂的涂层厚度为0.15-0.25mm。
3.如权利要求1所述的涤棉混纺织物的湿法转移印花工艺,其特征在于,所述步骤(2)中的隔离剂固化温度为100-120℃,固化时间为15-25s。
4.如权利要求1所述的涤棉混纺织物的湿法转移印花工艺,其特征在于,所述步骤(4)中碱液的pH为11-13。
5.如权利要求1所述的涤棉混纺织物的湿法转移印花工艺,其特征在于,所述步骤(5)中印花后的涤棉混纺织物的烘干温度为180-200℃,时间为2-5min。
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