Method for preparing dye solutions

Details Method for preparing dye solutions Method for preparing dye solutions

1975-09-17

1979-07-10

Marquis, Melvyn I.

Bleaching and dyeing; fluid treatment and chemical modification

Treatment of hides, skins, feathers and animal tissues

Tanning

8 42R, 8100R, 260 4221, D06P 332

Patent

active

041606426

ABSTRACT:
A method is disclosed for improving the solubility of Lewis acid dyes including metal chelate dyes and acid dyes, in solvents employing a copolymer based on a monomer containing a 5- or 6-membered heterocyclic tertiary amine. Dye solutions prepared by this process are useful in dyeing leather, in dyeing coatings and plastic articles, and are especially useful in combination with reactive urethane systems.

REFERENCES:
patent: 2205355 (1943-09-01), Grimm
patent: 2328900 (1943-09-01), Grimm
patent: 2901473 (1959-08-01), Steinemann
patent: 3037006 (1962-05-01), Hankens
patent: 3190850 (1965-06-01), Burke
patent: 3661923 (1972-05-01), Emmons
patent: 3743626 (1963-07-01), Emmons
patent: 3954397 (1976-05-01), Desiderio
Heidemann, Das Leder, 1972, vol. 23, (12), pp. 253-267, 8/12.

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