Process for dyeing leather with mixtures of dyes

Details Process for dyeing leather with mixtures of dyes Process for dyeing leather with mixtures of dyes

1982-03-19

1984-06-05

Tungol, Maria Parrish

Bleaching and dyeing; fluid treatment and chemical modification

Dyeing involving animal-derived natural fiber material ,...

8436, 8437, 8639, D06P 110, D06P 330, D06P 332

Patent

active

044526024

ABSTRACT:
A mixture of at least three selected 1:2 chromium or 1:2 cobalt complex dyes of different colors and belonging to the azo or azomethine series is used for dyeing leather and furs. The mixtures of dyes make it possible for the first time to dye leather by the trichromatic process.

REFERENCES:
patent: 4085097 (1978-04-01), Beffa et al.
patent: 4150942 (1979-04-01), Hollinger et al.

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