CN106120381B - 一种基于靛蓝染料轧染制备仿旧风格织物的工艺 - Google Patents
一种基于靛蓝染料轧染制备仿旧风格织物的工艺 Download PDFInfo
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- D06P1/44—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders
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Abstract
本发明属于纺织化工技术领域,特别涉及一种基于靛蓝染料轧染制备仿旧风格织物的工艺。首先将靛蓝染料、保险粉、碱加入水中进行还原;再加入粘结剂并搅拌均匀后将织物浸入其中进行轧染,空气中氧化、水洗、烘干后即得到具有仿旧风格的织物。获得的染色织物在观感上颜色较淡且泛白,具有明显的仿旧风格,且免去了常规的洗水、剥漂等工序。
Description
技术领域
本发明属于纺织化工技术领域,特别涉及一种基于靛蓝染料轧染制备仿旧风格织物的工艺。
背景技术
随着纺织行业的发展,以及消费者对布料的要求、审美越来越高,越来越多的风格迥异的面料开始出现。其中,具有怀旧风格的牛仔或仿牛仔面料由于其外观效果、艺术风格独特,休闲个性时尚深受消费者青睐,具有很大的市场价值。
利用天然染料进行的织物染色中,靛蓝是代表青色系列的重要染料,也称为蓝,靛蓝染料制备工艺简单、经济性优异。但是由于靛蓝本身是还原染料,不溶于水,在染色时需要先通过还原剂将其还原形成溶于水的隐色体,使其在纤维上吸附;再通过空气氧化或加入氧化剂,使靛蓝染料再次以不溶于水的形式沉积在纤维上。因此,采用靛蓝染色得色深度较高,从而需要进一步通过对染色织物进行洗水(对织物上已经上染的靛蓝染料进行一定程度的剥离)处理来获得仿旧风格,如浮石洗、高锰酸钾洗、次氯酸洗、酵素洗等,工艺成本都十分可观。
发明内容
本发明的目的在于:提供一种基于靛蓝染料轧染制备仿旧风格织物的工艺,免去了繁琐的洗水操作,具体操作为:
(1)采用常规的靛蓝还原工艺,将靛蓝染料、保险粉、碱加入水中进行还原,
其中,碱选择氢氧化钠,
靛蓝染料、保险粉、碱、水的质量比依次为2.5:3:2:100,
还原温度为40℃,还原时间为5min,
本步骤中通过还原将靛蓝染料还原成溶于水、易与亲水性织物结合的隐色体,便于后期染料在织物上的吸附;
(2)对步骤(1)得到的体系加水稀释,加入粘合剂并搅拌均匀,再将织物浸入其中进行轧染,氧化、水洗、烘干后即得到具有仿旧风格的织物,
其中,加水稀释至10倍体积,后加入的粘合剂的浓度为40g/L,
织物为牛仔或仿牛仔织物,
轧染操作为两浸两轧,轧余率为70%,两次浸轧间隔2至5分钟,
轧染后于空气中氧化10分钟,水洗两次后于80℃烘干,
本步骤中同时采用靛蓝染料和粘合剂对织物进行处理,此时粘合剂能够与靛蓝的隐色体形成竞争吸附,起到“占位”的效果,减少了织物对隐色体的吸附量,从而获得的染色织物在观感上颜色较淡且泛白,具有明显的仿旧风格,免去了常规牛仔后整理的洗水、剥漂等工序。
具体实施方式
实施例1
(1)将2.5质量份的靛蓝染料、3质量份的保险粉、2质量份的氢氧化钠加入到100质量份的水中并分散均匀,40℃下还原反应5min;
(2)对步骤(1)得到的体系加水稀释10倍后,按照40g/L的浓度加入粘合剂PY并搅拌均匀,再将织物浸入其中进行轧染,两浸两轧(轧余率为70%,两次浸轧间隔4分钟)后于空气中氧化10分钟,水洗两次后于80℃烘干即得到具有仿旧风格的织物。
染出的织物色牢度好,颜色分布均匀,手感优异,具有牛仔布特有的泛白仿旧风格。
耐干摩擦牢度可达4级,耐湿摩擦牢度可达3级,日晒牢度可达4级,测得K/S值为0.4930,皂洗后K/S值为0.4390。
对比实施例1
(1)将2.5质量份的靛蓝染料、3质量份的保险粉、2质量份的氢氧化钠加入到100质量份的水中并分散均匀,40℃下还原反应5min;
(2)对步骤(1)得到的体系加水稀释10倍后,再将织物浸入其中进行轧染,两浸两轧(轧余率为70%,两次浸轧间隔4分钟)后于空气中氧化10分钟,水洗两次后于80℃烘干。
染出的织物颜色较深,测得K/S值为2.7539,皂洗后K/S值为2.3657,不具有仿旧风格;耐干摩擦牢度可达4级,耐湿摩擦牢度可达4级,日晒牢度可达4级。
Claims (4)
1.一种基于靛蓝染料轧染制备仿旧风格织物的工艺,其特征在于:所述工艺为,
(1)将靛蓝染料、保险粉、碱加入水中进行还原;其中,靛蓝染料、保险粉、碱、水的质量比依次为2.5:3:2:100;
(2)对步骤(1)得到的体系加水稀释至10倍体积,加入粘合剂并搅拌均匀,再将织物浸入其中进行轧染,氧化、水洗、烘干后即得到具有仿旧风格的织物,其中,加入的粘合剂的浓度为40g/L。
2.如权利要求1所述的基于靛蓝染料轧染制备仿旧风格织物的工艺,其特征在于:步骤(1)中,还原温度为40℃,还原时间为5min。
3.如权利要求1所述的基于靛蓝染料轧染制备仿旧风格织物的工艺,其特征在于:步骤(2)中,轧染操作为两浸两轧。
4.如权利要求1所述的基于靛蓝染料轧染制备仿旧风格织物的工艺,其特征在于:步骤(2)中,烘干温度为80℃。
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