Method for producing dyeings with improved dyeability of cotton fibers by reactive dyes

摘要

The present invention is a method of producing a dyeing of the dyeing is improved by dyeing the cotton fiber, treated with an acidic or neutral bath when dyed with a reactive dye.;In the method for producing a dyeing product for dyeing cotton fibers with a reactive dye, the present invention provides a method of dyeing cotton fibers in a dipping bath containing epichlorohydrin of aliphatic quaternized ammonium as a cationic agent, followed by a first step of cationic treatment. The cationized cotton fibers are immersed in an acidic or neutral reaction bath containing a reactive dye, and the dyeing process comprises a second step of washing and drying.;The wash fastness, sweat fastness, composite fastness, dyeing property and dyeing property of the dyeings carried out by the present invention were found to be excellent.