超细涤纶弹力织物分散艳蓝SWF低浴比染色  

Low Bath Ratio Dyeing of Superfine Polyester Elastic Fabric by Disperse Cobalt Blue SWF

作　　者：张贵 王思捷 

机构地区：[1]互太(番禺)纺织印染有限公司,广东广州511462

出　　处：《针织工业》2016年第6期38-42,共5页Knitting Industries

摘　　要：超细涤纶弹力织物采用分散艳蓝SWF低浴比（1∶6）染色时,存在色点、色花、难以修色等问题,文中通过坯布高温预定形以及对染色p H值、匀染剂PRDN、膨胀剂DFM、染色温度和升温速率等参数进行优化,以解决上述质量问题。测试并分析了优化后工艺用于大生产时染色织物颜色、色差和色牢度等情况。结果表明,最优工艺为190℃预定形20~30 s,柠檬酸调节染浴p H值为3.50~4.00,匀染剂PRDN用量为2.0 g/L、膨胀剂DFM用量为2.0 g/L,130℃保温30 min,并采用分段式升温控制,100~120℃升温速率为1.0℃/min,120~130℃升温速率为0.5℃/min;大生产染色效果比较理想,色牢度指标达到4级及以上。Superfine polyester elastic fabric had the problems of color spots, dyeing defect, color repairing difficulty and so on when dyed by disperse cobalt blue with low bath ratio（1∶6）. In order to solve those problems, fabric adopted presetting at high temperature, and p H value, levelling agent PRDN, swelling agent DFM, dyeing temperature, heating rate and so on were optimized. The color, color shading, color fastness of fabric dyed by optimal dyeing process in large-scale production were tested and analyzed. The results show that the optimal process is that presetting temperature is 190 ℃, time is 20~30 s, p H value in the dyeing bath is 3.50~4.00 with citric acid. The dosage of levelling agent PRDN is 2.0 g/L, the dosage of swelling agent DFM is 2.0 g/L, temperature is 130 ℃and time is 30 minutes, and it adopts sectional type warming with 1.0 ℃ /min at 100 ~120 ℃ and 0.5 ℃ /min at120~130 ℃; the dyeing effect is good in large-scale production, and the color fastness can reach level 4 or above.

关 键 词：分散艳蓝SWF 低浴比 染色 超细涤纶织物 染色效果 色牢度 

分 类 号：TS193.638[轻工技术与工程—纺织化学与染整工程]