A PROCESS FOR DYEING FILAMENTS OF WET SPUN A ACRYLONITRILE COPOLYMERS

摘要

A process for the dyeing of filaments of wet spun acrylonitrile copolymers characterised in that the step of dyeing is carried out in a spin finish bath containing known spin finish agents such as herein described in addition to cationic dye or mixtures thereof, such as herein described, the wet filament material treated with the dye being thereafter subjected to the step of drying.