Method of modifying the dye affinity of cellulose fiber-containi

Bleaching and dyeing; fluid treatment and chemical modification – Chemical modification of textiles or fibers or products thereof – Cellulose fibers

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Details

8129, 8444, 8471, 8532, 8542, 8589, 8918, C09B 6200, D06P 522

Patent

active

043922651

ABSTRACT:
The method involves treating a cellulose fiber-containing structure with an alkaline agent, coating the structure with an acid chloride having the following formula: ##STR1## (wherein X is --H, --NO.sub.2, --CH.sub.3 or --SO.sub.2 Cl) and subjecting the resultant structure to heat treatment to cause chemical modification. The acid chloride is employed in the form of an emulsion in water. The emulsion may also contain a thickener such as a natural sizing agent or a dye. The method provides a more dyeable cellulose fiber-containing structure.

REFERENCES:
patent: 1679480 (1928-08-01), Leemann et al.
patent: 4113431 (1978-09-01), Terada et al.
patent: 4142853 (1979-03-01), Terada et al.
patent: 4286958 (1981-09-01), Fujiu et al.

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