Bleed resistant colored cellulosics and the method of their prep

Details Bleed resistant colored cellulosics and the method of their prep Bleed resistant colored cellulosics and the method of their prep

1982-01-06

1983-08-16

Clingman, A. Lionel

Bleaching and dyeing; fluid treatment and chemical modification

Reactive dye composition, process, or product

8561, 8562, 8649, 8919, C09B 6200

Patent

active

043989152

ABSTRACT:
There is disclosed a method for bleed-resistant coloring of cellulosic materials. The method comprises cross-linking to the cellulosic a water-insoluble colorant particle which is the cross-linkable reaction product of an organic polymer such as starch with a reactive dye compound. Representative of reactive dye compounds are Procion red, blue and yellow. Advantageous cross-linkers are urea-formaldehyde and melamine-formaldehyde resins. The cellulose materials colored by the method of the invention are new and are characterized-in-part in that they are bleed resistant.

REFERENCES:
patent: 3304297 (1967-02-01), Westmann et al.
patent: 3337288 (1967-08-01), Horisuchi et al.
patent: 3597322 (1971-08-01), Babson
patent: 4167422 (1979-09-01), Bellanca et al.
patent: 4297099 (1981-10-01), Simon et al.

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