基于羟基丙酮的还原硫化黑环保染色工艺探讨  

Environment-friendly Dyeing Process of Reduced Sulphur Black Based on 1,3-dihydroxyacetone

作　　者：黄旭 张炜栋 Huang Xu;Zhang Weidong(Jiangsu College of Engineering and Technology,Nantong,Jiangsu 226007,China)

机构地区：[1]江苏工程职业技术学院,江苏南通226007

出　　处：《针织工业》2024年第2期40-43,共4页Knitting Industries

摘　　要：首先采用阳离子改性技术对棉纱进行改性,在棉纤维素上成功引入季铵基,通过红外光谱、X射线衍射对其表面元素与结晶性能进行表征。其次,采用1,3-二羟基丙酮替代硫化钠,作为硫化黑染料的还原剂,实现了硫化黑的环保染色,通过正交试验优化染料的还原工艺。结果表明:棉织物在阳离子化改性过程中,棉纤维结晶度由62.1%降低至48.9%;改性棉纤维上染40 g/L硫化黑与未改性棉纤维上染60 g/L硫化黑K/S值一致,阳离子化提高了纱线的上染率,最佳还原工艺为硫化黑与1,3-二羟基丙酮质量比为1∶1,烧碱4 g/L,温度80℃;利用1,3-二羟基丙酮还原硫化黑对阳离子型棉纱进行染色,染色K/S值最高达到38.29,耐摩擦色牢度得到明显提高。Firstly,the cotton yarn was modified by cationic modification,and the quaternary ammonium group was successfully introduced into the cellulose.The surface elements and crystalline properties of cellulose were characterized by FTIR spectra and XRD.Secondly,the environment-friendly dyeing process was achieved with 1,3-dihydroxyacetone(DHA)instead of sodium sulfide to reduce sulphur black.The reduction process of the dye was optimized through orthogonal experiments.The results show that during the cationic modification,the degree of crystallinity is decreased from 62.1%to 48.9%.The K/S value of modified yarn dyed with 40 g/L sulphur black is the same as that of yarn dyed with 60 g/L sulphur black,and the cationization increases the dyeing rate.The optimized reduction process is optimized by orthogonal experiment as follows:the mass ratio of sulphur black and DHA is 1∶1,the caustic soda concentration is 4 g/L and reduction temperature is 80℃.Finally,the cationic cotton yarn is dyed with sulphur black reduced with DHA,and the dyeing K/S value is the highest by 38.29.The rubbing fastness is improved obviously.

关 键 词：棉纱 阳离子化 硫化黑 1 3-二羟基丙酮 K/S值 

分 类 号：TS190.2[轻工技术与工程—纺织化学与染整工程]