Reaction products useful for improving the wetfastness of direct

Details Reaction products useful for improving the wetfastness of direct Reaction products useful for improving the wetfastness of direct

1982-02-09

1983-10-18

Tungol, Maria Parrish

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Processes of preparing a desired or intentional composition...

524598, 525509, 8496, 8551, 8543, C08L 6132

Patent

active

044106521

ABSTRACT:
The wet fastness of direct dyes on cellulose substrates is improved by after-treatment with the reaction product of an amine with cyanamide, dicyanodiamide, guanidine or biguanidine which is further reacted with an N-methylol resin precursor, and heat curing in the presence of a catalyst. The unfixed portion of reactive dyes substantive to cellulose may also be given improved wet fastness by this treatment, so that washing to remove unfixed reactive dye may not be necessary.

REFERENCES:
patent: 2649354 (1953-08-01), Hemmi et al.
patent: 2769797 (1955-11-01), Suen et al.
patent: 2786824 (1957-03-01), Keim
patent: 3141728 (1964-07-01), Bockmann et al.
patent: 3873266 (1975-03-01), Hofer et al.
patent: 4247476 (1981-01-01), Haase et al.

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