| 摘要 |
In dyeing wet spun, acid-modified acrylonitrile (CO)-polymer, gelled fibers most of the non-aq. spinning solvent is removed, optionally before final drawing. The aq. dyestuff solns. used contain dyestufs with more than one gp. having a basic behavior towards the acid gps. of the fiber material. The basic gps. and quat. gps. and/or aliphatically bound amino, quanidino, amidino, or hydrazino gps. The dyestuff can be a basic mono-azo, di-azo, methin, azamethin, diazamethin, naphtholactam, Cu phthalocyanine, anthraquinoe, and/or triphenylmethane dyestuff.
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