Process for printing fiber products of acrylic fiber blends
AssigneeAmerican Cyanamid Company
InventorsEichiro Ueno, Hideo Kawasaki, Shozo Shigita
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Abstract
Fiber products of a blend of an acrylic fiber substantially free of acid dye sites with an acid dyeable fiber are printed with a dye paste containing a monosulfonic acid dye having an inorganicity/organicity ratio less than 4 to dye both fibers of the blend uniformly. As an alternative an additional acid dye outside the specific class designated may be used to augment the dyeing of the acid dyeable fiber.
Claims10
A process for dyeing a product of a fiber blend of from about 25 to 75 weight percent of an acrylic fiber substantially free of acid dye sites and, correspondingly from about 75 to 25 weight percent of an acid dyeable fiber, which process comprises printing said fiber product with a printing paste containing a monosulfonic acid dye having an inorganicity/organicity ratio less than 4 and thereafter steaming the printed fiber product, whereby both components are dyed with said dye.
Dependencies are inferred from the claim text.