D - Textiles – Paper – 06 – P
Patent
D - Textiles, Paper
06
P
D06P 1/38 (2006.01) D06M 13/228 (2006.01) D06M 13/355 (2006.01) D06P 1/39 (2006.01) D06P 1/642 (2006.01) D06P 1/649 (2006.01) D06P 1/66 (2006.01) D06P 3/66 (2006.01) D06P 3/82 (2006.01)
Patent
CA 2101180
Abstract of the Disclosure: Process for the production of a modified fiber material and process for the dyeing of the modified fiber material with anionic textile dyes. Fiber materials can be modified by applying heterocyclo- aliphatic compounds containing at least one primary, secondary or tertiary amino group or quarternary ammonium group, the hetero portion of which in the ring is a carbonic ester radical of the formula -O-CO-O- or a carbamic acid radical of the formula -O-CO-NH-, in aqueous alkaline solution by exposing the fiber material to these compounds at a temperature of between 60 and 230°C. The characteristic of the modified fiber material is that it can be dyed with dye solutions of water- soluble, anionic textile dyes which are low in electro- lytes or entirely free of electrolytes and/or are low in alkali or entirely free of alkali. The advantage of a dyeing process carried out in this manner, in particular for fiber-reactive dyes, is that fixation of the dyes under alkaline conditions is unnecessary.
Riehm Thomas
Russ Werner Hubert
Schrell Andreas
Fetherstonhaugh & Co.
Hoechst Aktiengesellschaft
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