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THE SPINNING OF A POLYMER BLEND CONSISTING OF POLYVINYL ALCOHOL AND A POLYMER CONTAINING VINYL PYRROLIDONE UNITS
In order to improve the dyeability of vinylon, the wet spinning of a polymer blend consisting of polyvinyl alcohol and a polymer containing vinyl pyrrolidone units, such as polyvinyl pyrrolidone and saponified or unsaponified vinyl acetate-vinyl pyrrolidone copolymer was carried out, and the fiber was subsequently heat-treated and acetalized to make the fiber resist to boiling water. Conse quently, the fiber having improved dyeability with several dyes such as direct dyes, sulphur dyes and vatdoi:10.2115/fiber.17.637 fatcat:gi4d2i3ipfehblabeje3z5yooq