Hair-reserving dyeing of wool- and fur-bearing skins

Details Hair-reserving dyeing of wool- and fur-bearing skins Hair-reserving dyeing of wool- and fur-bearing skins

1986-05-30

1988-01-05

Lieberman, Paul

Bleaching and dyeing; fluid treatment and chemical modification

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

Leather dyeing

8404, 8446, 8602, 8650, 8652, D06P 304, D06P 332

Patent

active

047173890

ABSTRACT:
A hair-reserving penetration dyeing of the leather side of wool- or fur-bearing skins is obtained by dyeing the wooled or fur skins in aqueous medium with hydrosoluble sulpho-group-containing sulphur dyes (a) in the presence of dye-substantive uptake assistant (b) and of non-ionic and/or anionic hydrophilic dispersants (c) and optionally in the presence of leather fatting agents (d).

REFERENCES:
patent: 3273954 (1966-09-01), Wachsmann et al.
patent: 3334960 (1967-08-01), Abel
patent: 3472605 (1969-10-01), Wicki et al.
patent: 3926546 (1975-12-01), Nickel et al.
patent: 4272243 (1981-06-01), Lach et al.

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