Bond stability and fixation mechanism between reactive dyes and chitosan fiber 活性染料与甲壳胺纤维的成键稳定性研究
When dyeing, 3-carboxyl pyridine group disconnects from s-triazine, and the cellulosic carboxylic group reacts with s-triazine rapidly to form a covalent bond, thus effects the colour fixation. 染色时,3-羧酸基吡啶脱落,而与纤维素羟基迅速反应形成共价键,由此完成固色过程。