Method for dyeing blended fiber materials of cellulose fiber and amide nitrogen-containing fiber with mono- and di-functional reactive dyes
AssigneeSumitomo Chemical Company, Limited
InventorsMasaaki Sasakura, Kunihiko Imada
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Abstract
A blended fiber material of cellulose fiber and nitrogen-containing fiber is dyed by a one-bath one-step dyeing method, which comprises contacting the material with a dye bath containing both a reactive dye having two or more fiber-reactive groups different from each other and a reactive dye having one fiber reactive dye, whereby a dyed product having an excellent wet fastness is obtained even in a single manner.
Claims15
A method for dyeing a blended fiber material made up of cellulose fiber and nitrogen-containing fiber selected from the group consisting of natural nitrogen-containing fibers and synthetic polyamide fibers, which comprises contacting the material with a dye bath containing a reactive dye having two or more fiber-reactive groups different from each other and a reactive dye having one fiber-reactive group, whereby the material can be dyed by a one-bath, one-step method.
Dependencies are inferred from the claim text.