直接大红4BS和直接湖蓝5B对纤维素原液着色的研究  

Spun-dyed Cellulose with Direct Red 4BS and Direct Blue 5B

作　　者：黎谦[1] 王光银[1] 

机构地区：[1]武汉纺织大学化学与化工学院,湖北武汉430073

出　　处：《武汉纺织大学学报》2013年第3期16-19,共4页Journal of Wuhan Textile University

基　　金：武汉纺织大学校基金项目(063405);湖北省教育厅项目(B200717004)

摘　　要：将7wt%NaOH/12wt%尿素水溶液预冷至-12℃,加入棉短绒可迅速溶解得透明纤维素溶液,用直接大红4BS和直接湖兰5B对再生纤维素溶液进行原液着色,制备彩色再生纤维素膜并研究其着色效果。通过UV-Vis光谱分析,K/S值、Lab、三刺激值及水洗脱色率测试,结果表明该方法制得的有色再生纤维素膜色泽均匀,水洗牢度好且不需要固色剂固色,可解决直接染料染色牢度较差的问题。A transparent cellulose solution could be obtained when cotton linter was added to a 7wt%NaOH/12wt% urea aqueous solvent which was precooled to -12~C. Then spun-dyed the cellulose solution with Direct Red 4BS and Direct Blue 5B, colored regenerated cellulose fiber membrane could obtained. After UV-Vis spectral analysis, K/S value, Lab Value, tristimulus value, and washing decoloration value testing, the results strongly suggest that the colored regenerated cellulose fiber membrane with this method can have a uniform color, excellent washfastness without fixation and environment friendly.

关 键 词：纤维素纤维 再生纤维素膜 直接大红4BS 直接湖蓝5B 原液着色 

分 类 号：TS193.5[轻工技术与工程—纺织化学与染整工程]