The Preparation of Sol-Si/Direct Dye and Application in the Dyeing of Cotton Woven Fabric

Water silicon sol was prepared in this paper using sol-gel technology, which tetraethoxysilane (TEOS) was used as precursor. And the sol-Si/direct dye was prepared by doping dyes into sol-Si, then the sol-Si/direct dye was used to dye cotton woven fabric. The particle sizes of sol-Si and sol-Si/direct dye, the effects of sol-Si dosage, electrolyte dosage on the dyeing performance of sol-Si/direct dye were discussed. It showed that the particle sizes was really stable and under the influence of sol-Si the fastness were improved evidently, and the K/S value can be able to meet the requirements.