Process for dyeing wet-spun aromatic polyamides in gel form

Details Process for dyeing wet-spun aromatic polyamides in gel form Process for dyeing wet-spun aromatic polyamides in gel form

1975-08-07

1977-11-22

Schofer, Joseph L.

Bleaching and dyeing; fluid treatment and chemical modification

Treatment of hides, skins, feathers and animal tissues

Depilating

8 85R, 8172R, 8171, 28217, 8178A, 28240, D06P 500, D06P 324

Patent

active

040594033

ABSTRACT:
The invention relates to a process for the production of dyed filaments from aromatic polyamides which contain acid groups.

REFERENCES:
patent: 2558733 (1951-07-01), Cresswell et al.
patent: 3111357 (1963-11-01), Wirth et al.
patent: 3233019 (1966-02-01), Adams
patent: 3242243 (1966-03-01), Knudson
patent: 3483576 (1969-12-01), Nakagawa et al.
patent: 3506990 (1970-04-01), Richardson et al.
patent: 3543359 (1970-12-01), Whitaker
patent: 3602966 (1971-09-01), Fleissner
patent: 3888821 (1975-06-01), Milford

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