| 摘要 |
The present invention relates to a textile treatment process which comprises applying to a textile substrate of natural or synthetic polyamide either before or after dyeing, a compound of formula I, <IMAGE> I in which R is an C6-20alkyl radical, each of R1 and R2, independently, is -CH2-CHOHCH2-X or C1-4alkyl, with the proviso that the total number of carbon atoms in R+R1+R2 is from 8 to 26; X is chlorine or bromine, Y is a non-chromophoric anion, and n is a whole number from 1 to 3, which treatment before dyeing increases the affinity of the substrate for anionic dyestuffs and after dyeing improves the wet-fastness of the dyed substrate. |
