Dyeing method using cationizing agents and reactive dyes, and fiber dyed using the same

摘要

The present invention relates to a dyeing method using a reactive dyestuff, more particularly as after the cationic agent treatment to the fiber with hydroxyl groups such as cotton to a method of dyeing using reactive dyes, an object of the present invention is a reactive dye for by increasing the dyeing efficiency, small amounts of dyes, Glauber's salt, soda ash and so on and to be to achieve a sufficient dyeing effect reducing the dyeing costs, mitigates the waste problem caused by dyes in the janyok, Glauber's salt, soda ash, total staining to shorten the time by using a reactive dye to improve the productivity is to provide a dyeing method.; The present invention includes the steps of pre-processing a fiber having a hydroxyl group by a conventional method; Insert the pre-treated fibers in water cationized step to inject a cationic agent having an ammonium group and an epoxy group; Insert the cationized fibers in water In the anionic group and the receiving of reactive dyes, neutral salts and weak alkali having a functional group capable of reacting with the hydroxyl groups of the fiber after dyeing step of pickling; The dyeing of the fibers into the water in a conventional small pingje soping and the neutral aqueous solution, to input the salt or acid capable of binding an ion and the ammonium group, and anionic step; And a step of post-processing the soping and the anionic fiber in a conventional manner.