DYEING WOOL; HIGH-TEMPERATURE PROCESS FOR DYEING WITH ANIONIC DYES IN THE PRESENCE OF WOOL PROTECTIVE AGENT

摘要

Dyeing of fibrous materials contg. wool with anionic dyes is carried out in the presence of a wool protection agent contg. unsatd. dicarboxylic acid cpd(s). (I) of formula (IA) and/or (IB): R-O-CO-CR1=CR2-CO-B-CO-CR1'=CR2'-O-R' (IA); R-O-CO-CH=CH-CO-O-Z1-H (IB); B = -X-Z1-, -X-Z2-X- or -NR3-(alk)-Z1-(alk)0-1-NR3'-; X = -O- or -NR3-; Z1 = -(CH2-CH2-O)p-(CHY1-CHY2-O)q-(CHY3-CHY4-O)r-; if X = -NR3-,Z2 = the radical of a tri-, tetra- or polyamine, in which the free amino gps. are (partly) in the form of an acylamino gp. of the formula: -NR3-CO-CR1"=CR2"-CO-O-R"; or if X = -O-, Z2 = the radical of a tri-, tetra- or polyol in which the free OH gps. are (partly) in the form of an ester gp. of the formula: -O-CO-CR1"=CR2"-CO-O-R"; R, R', R" = H, 1-6 C alkyl or a cation; R1, R1', R1", R2, R2', R2" = H, 1-6 C alkyl or halogen; R3, R3' = H or 1-6 C alkyl; (alk) = opt. substd. 1-4 C alkylene; one of Y1 and Y2 = Me and the other = H; one of Y3 and Y4 = Et and the other = H; p, q, r = 0-20 such that (p+q+r) = 2-20.