Process for improving the light fastness of polyamide dyeings

Details Process for improving the light fastness of polyamide dyeings Process for improving the light fastness of polyamide dyeings

1983-12-02

1985-10-01

Lieberman, Paul

Bleaching and dyeing; fluid treatment and chemical modification

Organic additive for dye composition, dye composition...

Nitrogen-containing, other than nitro or nitroso

8624, D06P 164

Patent

active

045443726

ABSTRACT:
The light fastness of dyed polyamide fibre materials, in particular of the type used for manufacturing car seat covers, can be substantially improved by treating these materials, before, during or after the dyeing, with copper compounds of the compounds of the formula ##STR1## wherein R=H, OH, alkyl or cycloalkyl. The compounds (I) are distinguished by low self-colour and good stability to acid conditions.

REFERENCES:
patent: 3203752 (1965-08-01), Mills et al.
patent: 4383835 (1983-05-01), Preuss et al.
Stary, J., The Solvent Extraction of Metal Chelates, MacMillan Co., N.Y. 1964, pp. 108, 109, 34, 35.
Chemical Abstracts, vol. 97, No. 12, Sep. 1982, p. 84, #93875e, Toray Industries, Inc.

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