Process for conveniently providing stain-resistant polyamide car

Details Process for conveniently providing stain-resistant polyamide car Process for conveniently providing stain-resistant polyamide car

1984-06-29

1985-02-26

Tungol, Maria Parrish

Bleaching and dyeing; fluid treatment and chemical modification

Coating or sizing with dyeing process or product

8560, 8632, 8929, 4273934, D06P 156, D06P 324, D06P 1673

Patent

active

045015910

ABSTRACT:
The invention relates to an improvement in certain processes for continuously dyeing polyamide carpets whereby stain resistance is imparted to the carpets during the dyeing process. The improvement involves adding an alkali metal silicate (e.g. sodium meta silicate) and a sulfonated phenol-formaldehyde condensation product to the dye liquor used in the dyeing process. If either the silicate or condensation product is omitted from the liquor, the improvement is not achieved. The improvement provides a convenient and economical means for providing stain resistant polyamide carpets.

REFERENCES:
patent: 3416878 (1968-12-01), Biber
patent: 4295852 (1981-10-01), Walz et al.
patent: 4302202 (1981-11-01), Sumner et al.

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