| abstract |
A process for dyeing fiber materials with water-soluble, anionic dyes, in particular those with a fiber-reactive group, is described, according to which the dyeing is carried out using low-electrolyte or completely electrolyte-free and / or low-alkali or completely alkali-free dye solutions (dye liquors, printing pastes) and at which one uses a fiber material which has been modified with a saturated straight-chain or branched aliphatic or cyclo-aliphatic compound, which is optionally substituted by one or more hydroxyl groups and which has at least one primary, secondary or tertiary amino group or quaternary ammonium group and at least one hydrolyzable group Contains ester group, wherein the aliphatic radical in this compound can also be interrupted by one or more hetero groups. The modification of the fiber material is carried out by applying the above-mentioned aliphatic compound containing amino and ester groups to the fiber material in aqueous solution and subjecting the impregnated material to heat treatment. Furthermore, some new amino and ester group-containing aliphatic compounds are described, which can be used to modify the fiber material. |