摘要
以环保型葡萄糖为还原剂,分析中药青黛的还原工艺和对涤纶珊瑚绒的染色工艺,测试了织物的色牢度和抗紫外线性能,通过红外光谱和高效液相色谱表征了青黛的主要分子结构和组成。结果表明,优化的中药青黛还原工艺为:青黛8%(omf),还原剂葡萄糖24%(omf),碱剂8%(omf),60℃还原20 min。珊瑚绒的青黛染色工艺为:p H值6,120℃染色30 min,浴比1∶30。用青黛染色的涤纶珊瑚绒织物耐干摩擦色牢度为4级、耐湿摩擦色牢度为3~4级,耐皂洗褪色牢度为3~4级、沾色牢度为5级。染色织物具有良好的近紫外(UV-A)防护性。红外光谱分析结果表明,青黛中主要成分符合靛蓝的结构特征;高效液相色谱图表明,青黛中以靛蓝为主,含有少量靛玉红。
The reduction process of indigo naturalis with environment-friendly glucose as reductant and its application to dyeing of polyester coral velvet fabric are analyzed. The color fastness and anti-UV property of dyed fabrics are tested. The molecular structure and composition of indigo naturalis are characterized by IR and HPLC. The results show that the optimal reduction process is： indigo naturalis 8%（omf）, reductant glucose 24%（omf）, alkali 8%（omf）, reducing at 60 ℃ for 20 min. The optimal dyeing process of coral velvet with indigo naturalis is： pH value 6, dyeing at 120℃ for 30 rain, liquor ratio 1：30. The dry rubbing fastness, wet rubbing fastness, fading fastness and staining fastness of dyed fabrics are Grade 4, Grade 3-4, Grade 3N4 and Grade 5, respectively. The dyed fabric has good ultraviolet （UV-A） protection property. Infrared spectrum analysis shows that the main structural characteristics are in accor- dance with of indigo. HPLC reveals that the main component of indigo naturalis is indigo with a small amount of indirubin.
出处
《印染》
北大核心
2017年第8期30-34,共5页
China Dyeing and Finishing
基金
江苏省产学研合作前瞻性联合研究项目(BY2015047-03)
江苏省高等学校大学生创新创业训练计划项目(201613993007Y)
南通大学杏林学院自然科学研究项目(2016K119)
关键词
天然染料
染色
青黛
珊瑚绒
natural dye
dyeing
indigo naturalis
coral velvet
