Method for preparing dye solutions

Details Method for preparing dye solutions Method for preparing dye solutions

1973-07-16

1976-05-04

Padgett, Benjamin R.

Bleaching and dyeing; fluid treatment and chemical modification

Treatment of hides, skins, feathers and animal tissues

Tanning

8 13, 8 42R, 8 42B, 252 857, 252 88, C09B 2700, D06P 312, C09B 4500, C14C 900

Patent

active

039543978

ABSTRACT:
A method is disclosed for improving the solubility of Lewis acid dyes including metal chelate dyes and acid dyes, in solvent employing 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: 2901473 (1959-08-01), Steinemann
patent: 3037006 (1962-05-01), Hankins
patent: 3661923 (1972-05-01), Emmons
patent: 3743626 (1973-07-01), Emmons

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