Abstract
PAN fiber is one that contains at least 85% by mass of acrylonitrile co-monomer in the polymer chain. It has low moisture-absorbency and electrostatic tendency. The moisture regain of collagen modified PAN fiber is increased. Dyeing kinetics of collagen modified PAN fiber was studied using Cationic Red X-GRL dyes, including dyeing rate curve, equilibrium dyeing uptake, half dyeing time, dyeing rate constant and diffusion coefficient. The results show that: compared with PAN fiber, the equilibrium dye uptake decreased, half dyeing time, dyeing rate constant and diffusion coefficient reduced, and the dyeing behavior of collagen modified PAN fiber become worse than that of PAN fiber.
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