Process for coloring a textile substrate

Details Process for coloring a textile substrate Process for coloring a textile substrate

2006-03-28

2006-03-28

Gupta, Yogendra N. (Department: 1751)

Bleaching and dyeing; fluid treatment and chemical modification

Two-phase system dyeing composition or process

C008S492000, C008S147000, C427S381000, C427S500000

Reexamination Certificate

active

07018429

ABSTRACT:
The present invention relates to methods of imparting color and ultraviolet protection to synthetic yarns or substrates. More specifically, the present invention is directed to a method of solution dyeing a polymeric material during polymerization to form a base color shade, and subsequently dyeing the polymeric material by either yarn dyeing or piece dyeing. Ultraviolet protection is also provided in the solution dyeing step, by introducing an ultraviolet stabilizing agent into the polymer. The base shade may then be transformed into a useful color pallet with enhanced lightfastness properties by applying a final color shade late in the fabric formation process.

REFERENCES:
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patent: 3918111 (1975-11-01), Dunn
patent: 4045601 (1977-08-01), Brodmann et al.
patent: 4087494 (1978-05-01), Reinehr et al.
patent: 4095940 (1978-06-01), Weingarten
patent: 4902787 (1990-02-01), Freeman
patent: 5066308 (1991-11-01), Yeh et al.
patent: 5376151 (1994-12-01), Freeman et al.

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