| 摘要 |
Method for dyeing material contg. or consisting of synthetic polyamide fibres (PA) with water-soluble dyes from aq. medium comprises (1) using PA contg. NOTLESS 60 g-equiv. terminal amino gps./1000 kg PA; and (2) dyeing with dye formulation (A) or (B). Formulation (A) contains a vinylsulphonyl deriv. of formula (I) and an N-substd.- beta -aminosulphonyl deriv. of formula (II) of identical dye(s) in the molar equiv. ratio 90:10 to 60:40% w.r.t. the -(SO2-CH=CH2)n and -ÄSO2-CH2-CH2-N(R)-V-XÜn gps.; and formulation (B) contains beta -sulphato-ethylsulphonyl derivs. (IA) and/or (I) and substd. amine(s) of formula (III) in molar equiv. ratios of (IA) and (I) to (III) of 100:(10-40)% w.r.t. -(SO2-CH2-CH2-OSO3M)n and -(SO2-CH=CH2)n gps.; F-(SO2-CH=CH2)n (I), F-(SO2-CH2-CH2-OSO3M)n (IA), S-ÄSO2-CH2-CH2-N(R)-V-XÜn (II), H-N(R)-V-X (III). F = the residue of a mono-, dis- or poly-azo dye, heavy metal complex mono-, dis- or tris-azo dye or anthraquinone, azomethine, phenazine, stilbene, triphenylmethane, (thio)xanthene, nitroaryl, naphthoquinone, perylenetetracarbimide, (Cu) formazan, (Cu, Ni or Co) phthalocyanine or tri-pheno-dioxazine dye contg. 1 or 2 water-solubilising gps., e.g. OSO3M, SO3M and/or COOM gps.; n = 1 or 2; M = H or an alkali metal; R = H or 1-6 C alkyl, which may have 1 or 2 hetero-gps. in the chain and may be substd. by -SO3M, COOM, OH, OSO3M, -OPO3M2 and/or 2-5 C alkanoylamino; V = a covalent bond, 1-4 C alkylene or -CO-NH-CH2-CH2-; and X = a water-solubilising gp.. |
