Process for increasing stain-resistance of cationic-dyeable modi

Details Process for increasing stain-resistance of cationic-dyeable modi Process for increasing stain-resistance of cationic-dyeable modi

1996-05-28

1997-09-02

Einsmann, Margaret

Bleaching and dyeing; fluid treatment and chemical modification

Synthetic fiber produced from material which contains...

8618, 8620, 8673, 8680, D06P 300, D06P 139

Patent

active

056627165

ABSTRACT:
This invention relates to an improved process for dyeing cationic-dyeable polyamide fibers, especially carpet fibers, with an acid dye to provide stain-resistant fibers. The polyamide fibers contain cationically dyeable sulfonate groups along the polymer chain. The improvement involves adding certain water-soluble salts to a dyebath at a concentration of at least 20% based on the weight of fiber.

REFERENCES:
patent: 4043749 (1977-08-01), Huffman
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patent: 5468554 (1995-11-01), Windley
Trotman, E.R, Dyeing and Chemical Technology of Textile Fibres, 1984, p. 336-347.

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