Improving the Wash Fastness of Direct Dyes on Cotton by Si/Ti Composite hydrosol
INTRODUCTION The direct dye is one of the most popular dyes used for cotton. It possesses remarkable advantages such as wide color ranges, excellent dye penetration, low cost, short dyeing time, and so on. However, its fastness to wet processing, especially wash fastness, is poor mainly because of its hydrophilic sulphonic groups in molecule structure. To enhance wash fastness of cotton dyed with direct dyes, cationic compounds, resin fixatives, metallic salts, and polyfunctional cross-linking agents, etc. Are widely applied1. The sol-gel processes based on the hydrolysis and condensation of metal alkoxide compounds have various technical applications such as the preparation of special glass, ceramic and coatings2-6. The basic kinetics of the processes can be well described as two reactions7: hydrolysis and polycondensation.
Xiaoyan Liu Wei Wang Song Rongrong Ying Li
College of Textiles, Dong Hua University, Shanghai 201620, China College of Chemistry and Chemical Engineering, Dong Hua University, Shanghai 201620, China
国际会议
上海
英文
1543-1546
2009-05-27（万方平台首次上网日期，不代表论文的发表时间）