Method for pattern dyeing of textile fabrics containing blends of cellulose regenerated fiber

Abstract

A method for dying-finishing of textile fabrics which contain modified cellulose regenerated fiber capable of dyeing with cationic dyes which contains an insoluble polymer which is obtained by cross-linking a dihydroxydiphenylsulfone-sulfonate condensate with epoxy compounds having at least two epoxy groups in the molecule, and at least one kind of fiber selected from ordinary cellulose regenerated fiber, cotton and wool, the method comprising steps of dying of the textile fabrics containing modified cellulose regenerated fiber with a dyeing solution containing cationic dyes alone or containing the cationic dyes and dyes other than cationic dyes by one-bath dying method, concentration of the cationic dyes being decided for the modified cellulose regenerated fiber weight and concentration of the dyes other than cationic dyes being decided for the whole weight of the textile fabric, treating the dyed textile fabric sequentially with an aqueous solution of tannic acid for applying tannic acid 1.5-7% of the weight of the modified cellulose regenerated fiber, and after that treating it with an aqueous solution of tartar emetic for applying tartar emetic 0.5-2.5% of the weight of the modified cellulose regenerated fiber.

Dependencies are inferred from the claim text.