Method of treating natural or synthetic polyamide fibre...

Details Method of treating natural or synthetic polyamide fibre... Method of treating natural or synthetic polyamide fibre...

2006-08-15

2006-08-15

Einsmann, Margaret (Department: 1751)

Bleaching and dyeing; fluid treatment and chemical modification

Organic additive for dye composition, dye composition...

Polymeric additive

C008S924000, C008S930000, C008S495000

Reexamination Certificate

active

07090704

ABSTRACT:
A method of improving the resistance of dyes on natural or synthetic polyamnide fiber materials to the action of ozone and NOx, which comprises treating the fiber material, before, during or after dyeing, with a liquor comprising a terpolymer containing structural repeating units of formulae (I), (II) and (III) in which R is a radical of formula (IV) wherein A1and A2are independently of one another a direct bond, C1–C8alkylene or —CO—NH—C1–C8alkylene, E is vinyl or —OSH3H and n denotes 0 or 1. The dyeings and prints obtained are distinguished by improved ozone fastness properties without the shade, color yield and other fastness properties, for example fastness to light, being affected

REFERENCES:
patent: 4070152 (1978-01-01), Pentz
patent: 4693727 (1987-09-01), Bowles et al.
patent: 5948125 (1999-09-01), Ouziel
patent: 6280482 (2001-08-01), Ouziel et al.
patent: 6280648 (2001-08-01), Konzelman et al.

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