Dye diffusion promoting agents for aramids

Details Dye diffusion promoting agents for aramids Dye diffusion promoting agents for aramids

2005-01-11

2005-01-11

Einsmann, Margaret (Department: 1751)

Bleaching and dyeing; fluid treatment and chemical modification

Organic additive for dye composition, dye composition...

Carboxamides or thiocarboxamides

Reexamination Certificate

active

06840967

ABSTRACT:
Aramid and aramid-blend fabrics are dyed or flame-retardant treated or both dyed and flame-retardant treated using conventional heat dyeing equipment. Amides capable of swelling the aramid fibers at least 1.5% and preferably having 7 to 14 carbon atoms are used as diffusion-promoting agents for dyes, flame retardant agents or both. Odor-free, flame resistant, colored or colored and highly-flame resistant products result.

REFERENCES:
patent: 5207803 (1993-05-01), Holsten et al.
patent: 1275459 (1972-05-01), None

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