Methods for dyeing fibrous material, dyed goods produced by such methods, and a system for operating the method producing the goods

摘要

A method for dyeing a fibrous material includes the steps of treating a fibrous material with a cationic agent and contacting said fibrous material with a direct dye. The treatment with a cationic agent may occur before or after the contact with a direct dye. Additional pre- and post-treatment steps may optionally include bleaching, neutralizing, fixing, and scouring to achieve an ultimately desired fibrous material look and feel.