分散染料在棉涤交织物中的扩散转移机制  

Diffusion and transfer mechanism of disperse dyes in cotton polyester intertexture

作　　者：刘宇 谢汝义 房宽峻 LIU Yu;XIE Ruyi;FANG Kuanjun(College of Textiles&Clothing,Qingdao University,State Key Laboratory for Biofibers and Eco-Textiles,Qingdao 266071,China;Collaborative Innovation Center for Eco-Textiles of Shandong Province and the Ministry of Education,Collaborative Innovation Center for Eco-Textiles of Shandong Province,Qingdao 266071,China)

机构地区：[1]青岛大学纺织服装学院,生物多糖纤维成形与生态纺织国家重点实验室,山东青岛266071 [2]生态纺织省部共建协同创新中心,山东省生态纺织协同创新中心,山东青岛266071

出　　处：《印染》2022年第2期1-6,共6页China Dyeing and Finishing

基　　金：国家重点研发计划资助(2017YFB0309800);山东省重大科技创新工程项目资助(2019TSLH0108);生物多糖纤维成形与生态纺织省部共建国家重点实验室资助(ZDKT202008)。

摘　　要：为了解分散染料在棉涤交织物上的转移机理,使用蒽醌型分散红60和偶氮型分散红167对棉涤交织物进行染色,通过N,N-二甲基甲酰胺(DMF)萃取织物上的分散染料,测定分散染料DMF溶液的紫外-可见吸收光谱,计算染料的转移率和损失率。采用超景深三维显微镜分析染料在棉涤交织物中的转移机制,发现棉涤交织物浸轧染液烘干后,分散染料主要分布于棉纱线上远离涤纶的位置,焙烘过程中分散染料除部分升华损失外,还会沿着棉纱线轴向扩散,并在纱线交错位置从棉纱线转移到涤纶上,然后扩散进入涤纶无定形区着色。Anthraquinone Disperse Red 60 and azo Disperse Red 167 are used to dye cotton/polyester intertex⁃ture,and the transfer mechanism of disperse dyes on cotton/polyester fabric is studied.The UV visible absorp⁃tion spectra of disperse dye solutions extracted from fabrics by N,N-dimethylformamide are measured,and the transfer rate and loss rate of dyes are calculated.The transfer mechanism of disperse dyes on cotton/poly⁃ester intertexture is analyzed by ultra-depth microscope.It is found that after the cotton/polyester intertex⁃ture is padded with the dispersion dye solution and dried,the disperse dyes are mainly distributed on the cot⁃ton yarns and far away from the polyester yarns.During baking process,parts of the disperse dyes are lost by sublimation,and most of them will spread along the axial direction of the cotton yarn,and transfer from the cotton yarn to the polyester at the interlace position,and then diffuse into the polyester amorphous area for coloring.

关 键 词：染色 分散染料 扩散 转移机理 涤棉织物 

分 类 号：TS193.638[轻工技术与工程—纺织化学与染整工程]