Method for determining the compatibility of a direct or reactive

Details Method for determining the compatibility of a direct or reactive Method for determining the compatibility of a direct or reactive

1983-06-01

1985-10-22

Bernstein, Hiram H.

Chemistry: analytical and immunological testing

Process or composition for determination of physical state...

8496, 8543, 8551, 436164, 436183, G01N 2182, G01N 3102

Patent

active

045489025

ABSTRACT:
Dyeings on cellulose with direct or reactive dyestuffs are given improved wet fastness properties by aftertreatment with a reaction product or mixture of a polybasic amino compound (A) with an N-methylol compound (B) or with formaldehyde or a formaldehyde donor and optionally a crosslinking catalyst (C). Particular direct or reactive dyestuffs and polybasic amino compounds are determined to be suitable in the dyeing and aftertreatment when the dyestuff and the polybasic amino compound (A) are such that when mixed together in aqueous solution they give a precipitate which, after washing and drying does not redissolve in aqueous alkali at pH.gtoreq.12 at room temperature.

REFERENCES:
patent: 2214067 (1940-09-01), Petersen
patent: 3301696 (1967-01-01), Taube et al.
patent: 4410652 (1983-10-01), Robinson et al.
Dupont Technical Bulletin on Dyes and Chemicals, vol. 20, No. 1, Jun. 1964, p. 67.

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