METHOD OF DYEING CELLULOSE FIBER-CONTAINING STRUCTURES

摘要

This invention provides a method of dyeing a fibrous structure containing cellulose fibers. The method includes the steps of impregnating the fibrous structure with an alkaline compound in an amount of from 1 to 20% by weight based on the weight of the fibrous structure and with a modifying agent, the molar ratio of the alkaline compound to the modifying agent being 0.1 to 2.0, and the modifying agent being a compound of the formula where X is -H, -NO2, -CH3, or -SO2C?; effecting chemical modification of the impregnated fibrous structure by heat-treating it under steaming or dry heating conditions; and then dyeing the modified fibrous structure with a dye such as a disperse dye.