摘要
Abstract
Cotton fabric was modified by a self-made cationic gelatin auxiliary. The effect of reactive red M-R on the dyeing adsorption rate of the modified and unmodified cotton fabric was explored. Pseudo first-and second-order kinetic models were used to simulate and analyze the adsorption kinetic data, and the kinet-ic parameters of the reactive red M-R on the modified and unmodified fabric were calculated. The results showed that the modified and unmodified fabric dyeing processes fol owed the pseudo second-order kinetic models. As the temperature rised, the initial dye adsorption rate and equilibrium adsorption capacity gradual y increased, while the half-dyeing time decreased. However, compared with the unmodified fabric, the initial dye adsorption rate of the modified fabric increased significantly, half-dyeing time reduced remarkably, and the equilibrium adsorption capacity increased 2 times. It was proved that cationic gelatin auxiliary modified fab-ric significantly improved the anionic dyes for dye adsorption performance.关键词
阳离子明胶助剂/改性棉织物/活性染料/染色动力学Key words
cationic gelatin auxiliary/modified cotton fabric/reactive dyes/dyeing kinetics分类
化学化工
