Method of bleaching textile materials

Details Method of bleaching textile materials Method of bleaching textile materials

1981-06-18

1982-06-29

Tungol, Maria Parrish

Bleaching and dyeing; fluid treatment and chemical modification

Bleaching

Chemical

25218628, 162 78, D06L 302, D21C 916

Patent

active

043370608

ABSTRACT:
Described is a method of bleaching textile fabrics with potassium based bleaching liquors: One liquor is an aqueous solution of commercially available potassium orthosilicate, water and hydrogen peroxide and the other is an aqueous solution of water, hydrogen peroxide, and the reaction products of sodium silicate and potassium hydroxide (potassium orthosilicate and sodium hydroxide) the relative concentrations of the reactants being such that there are four moles of potassium hydroxide for every one mole of sodium silicate. In the latter liquor, the potassium ion concentration is always greater than the sodium ion concentration.

REFERENCES:
patent: 2333916 (1943-11-01), Campbell et al.
patent: 2679483 (1954-05-01), Armstrong
patent: 2927082 (1960-03-01), Young
patent: 3150918 (1964-09-01), Currier
patent: 3650887 (1972-03-01), Grangaard
patent: 3996151 (1976-12-01), Kirner

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