聚乳酸面料的染色工艺  

Dyeing process of polylactic acid fabric

作　　者：张京彬 闻伯涛 周延钊 陈华毅 ZHANG Jingbin;WEN Botao;ZHOU Yanzhao;CHEN Huayi(National Innovation Center of Advanced Dyeing&Finishing Technology,Tai′an,Shandong 271000,China;Shandong Zhongkang Guochuang Research Institute of Advanced Dyeing&Finishing Technology Co.,Ltd.,Tai′an,Shandong 271000,China)

机构地区：[1]国家先进印染技术创新中心,山东泰安271000 [2]山东中康国创先进印染技术研究院有限公司,山东泰安271000

出　　处：《毛纺科技》2024年第11期33-38,共6页Wool Textile Journal

基　　金：山东省重点研发计划项目(2022ZDPT02)。

摘　　要：为了解决聚乳酸面料染深性差的问题,对比市售PLA染料与市售HA染料在聚乳酸面料上的染色差异,讨论染色温度对织物顶破强力的影响,染色温度、染液pH值、染色浴比、染色时间及染料用量对PLA染料染深性的影响,并对染色工艺进行优化。试验结果表明,染色温度超过115℃后织物强力下降明显,染色温度为120℃时,织物顶破强力下降达11.4%;优化后的染色工艺为染色温度110℃,pH值4.5,浴比1∶10,保温30 min;为保证染色的匀染性,染色温度在60~110℃应以0.5~1.0℃/min缓慢升温;PLA染料提升性良好,适合染深色,还原清洗后的聚乳酸面料耐皂洗色牢度、耐摩擦色牢度均在4级以上,K/S值标准偏差最大为0.215,能够满足服装面料的染色要求。In order to solve the difficulty of dyeing dark color,the dyeing differences between commercially available PLA dyes and commercially available HA dyes on PLA fabric were compared in the paper,and the effects of dyeing temperature on the bursting strength of PLA fabric were discussed,the effects of dyeing temperature,pH value of dyeing solution,dyeing bath ratio,dyeing time and dye dosage on the depth of PLA fabric using commercially available PLA dyes.After the dyeing temperature exceeds 115℃the fabric strength decreases significantly,when the dyeing temperature is 120℃,the top breaking strength decreases by 114%,and the optimized dyeing process is as follows:dyeing temperature 110℃,pH value 4.5,bath ratio 1∶10,holding time 30 min.In order to ensure the level dyeing of fabrics,the temperature should be slowly increased by 0.5-1.0℃/min between 60-110℃.Commercially available PLA dyes have good dyeing property,which is suitable for dyeing dark color.The color fastness to rubbing and soaping wash of the polylactic acid fabric after reduction washing are above grade 4,and the standard deviation of K/S value is 0.215,which can meet the color fastness requirements of the garments.

关 键 词：聚乳酸 分散染料 染深性 色牢度 

分 类 号：TS193.5[轻工技术与工程—纺织化学与染整工程]