非水介质染色体系中分散染料对涤纶/棉混纺织物的沾色研究  

Study on disperse dye staining on polyester/cotton blended fabrics in non-aqueous medium dyeing system

作　　者：易菁源 裴刘军 朱赫 张红娟 王际平 YI Jingyuan;PEI Liujun;ZHU He;ZHANG Hongjuan;WANG Jiping(Engineering Research Center of Textile Chemistry and Clean Production,Shanghai University of Engineering Science,Shanghai 201620,China;School of Textiles and Fashion,Shanghai University of Engineering Science,Shanghai 201620,China)

机构地区：[1]上海工程技术大学上海纺织化学清洁生产工程技术研究中心,上海201620 [2]上海工程技术大学纺织服装学院,上海201620

出　　处：《纺织学报》2023年第5期29-37,共9页Journal of Textile Research

基　　金：国家自然科学基金项目(22072089);新疆生产建设兵团重大科技项目(2019AAA001)。

摘　　要：为实现涤纶/棉混纺织物的少水无盐、污水零排放染色关键技术,基于前期开发适用于非水介质中对涤纶的上染率较高的偶氮染料以及传统水浴常用的蒽醌和杂环染料,探究了非水介质染色体系中,分散染料结构、染色温度、促染剂、保温时间、分散剂对分散染料沾染棉纤维的影响及作用机制,并使用相对沾色率对分散染料在涤、棉上的分配进行表征。结果表明,在非水介质染色体系中,实验所用的蒽醌类分散染料对涤纶组分的上染率仅有12%,并不适用于该体系中对涤纶/棉混纺织物染色;而选用的偶氮类和杂环类分散染料对涤纶组分上染率在80%以上;非水介质染色体系中,加入极性小分子促进剂,不仅能够改善涤纶组分的溶胀,且借助分子的强极性降低分散染料在非水介质中的溶解度,提高分散染料对涤纶组分的上染率,从而降低分散染料对棉组分的沾色;染色过程中加入分散剂NNO,不仅不能提升分散染料的染色性能,反而影响其沾色率。根据分散染料对涤纶的上染率及相对沾色率,得出分散染料的最佳染色条件为:温度140℃、促染剂含量10%(o.w.f)、保温时间60 min。Objective Fabrics made from blended fibers demonstrate their advantages and enrich textiles diversification,of which polyester/cotton blended fabrics are most widely used in the textile and fashion industry.In order to save energy and reduce emission,non-aqueous media dyeing technology has been applied to the dyeing of polyester/cotton blended fabrics,using non-aqueous media,such as decamethylcyclopentasiloxane(D5),paraffin liquid,cooking oil and so on.Nevertheless,the phenomenon of staining persists during the dyeing process of polyester/cotton blended fabrics,resulting in decreased production efficiency and heightened pollution.This paper aims to investigate the mechanism behind the staining of cotton components in polyester/cotton blended fabric by disperse dyes in non-aqueous dyeing systems,with the objective of mitigating the staining of dyes during the dyeing process.Method Based on the determination of azo dyes which have high uptake rate and suitable for polyester dyeing in non-aqueous media,and anthraquinone and heterocyclic dyes commonly used in conventional water bath,this research focused the dyeing and staining of disperse dye for polyester/cotton blended fabric in non-aqueous medium dyeing system.The influence of disperse dye structure,dyeing temperature,accelerant,dyeing time and dispersant NNO on the disperse dye staining,and dyeing effect of polyester/cotton blended fabric in non-aqueous medium dyeing system were investigated.Owing to the structure of polyester/cotton blends,it was difficult to isolate cotton staining for independent study.Therefore,conducting experimental research using 1.3 g of polyester fabric and 0.7 g of cotton fabric to simulate 2 g of polyester/cotton(65/35)blended fabric was necessary to gain a better understanding of the degree of cotton staining,and to demonstrate it more intuitively.One-bath-two-steps method was used for dyeing.In order to investigate the influence of dyeing conditions on dyeing performance,C.I Disperse Red 177 was chosen as disperse dye in the subsequ

关 键 词：非水介质染色 涤纶/棉混纺织物 分散染料 沾色 促染剂 溶解度 

分 类 号：TS190.5[轻工技术与工程—纺织化学与染整工程]