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Process for the continuous dyeing, in a gel state, of fibrous articles spun from acrylonitrile polymer solutions in organic solvents
Process for the continuous dyeing, in a gel state, of fibrous articles spun from acrylonitrile polymer solutions in organic solvents
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机译:在有机溶剂中从丙烯腈聚合物溶液纺制的纤维制品,以凝胶状态连续染色的方法
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摘要
A process for the continuous dyeing of fiber material of one or more acid-modified polymers or copolymers of acrylonitrile in the gel state, said fiber material having been produced by wet spinning from a spinning solution containing one or more organic solvents, which process comprises dyeing the fiber material with a solution of a carbinol base or anhydro base of a carboxyl- or sulfo-free N-arylated triarylmethane dyestuff, a carboxyl- or sulfo-free N-arylated diarylindolylmethane dyestuff, a carboxyl- or sulfo-free N-arylated diaryloxazine dyestuff, a carboxyl- or sulfo-free N-arylated diarylxanthene dyestuff, or a carboxyl- or sulfo-free N-arylated diarylazine dyestuff in a dye bath containing water and the organic spinning solvent or solvents.
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