| 摘要 |
Polyamide fibre materials are dyed with acid dyestuffs and/or metal complex dyestuffs in the presence of compounds of the formula <IMAGE> in which R represents a C4-C12-alkyl, C1-C12-alkoxy, phenyl, cyclohexyl or C2-C10-hydroxyalkoxy radical, R1 represents hydrogen or a C1-C4-alkyl radical, n represents an integer from 1 to 10 and m represents a number from 1 to n+1, or water-soluble salts thereof. |
