Bleaching composition

Details Bleaching composition Bleaching composition

1995-11-06

1997-04-01

Gibson, Sharon

Compositions

Oxidative bleachant, oxidant containing, or generative

Composition containing a stabilizer or a product in the form...

25218628, 162 8, 162 78, 510309, 510317, D06L 302

Patent

active

056162804

ABSTRACT:
A bleaching composition for cellulosic materials such as paper pulp, cotton and cotton blends. The chemical system of the present invention includes a mixture of sodium hydroxide, optical brighteners and an enhanced hydrogen peroxide composition including a silicate-free stabilizer. In the preferred embodiment, the silicate-free stabilizer includes a magnesium salt; an aminoalkylphosphonic acid; dipicolinic acid; and the balance water. The resulting textile goods are soft, absorbent, silicate-free with a Hunter Scale whiteness of greater than about 85. Because a silicate-free stabilizer is used, low levels of extractable solids are obtained.

REFERENCES:
patent: 3740187 (1973-06-01), Kowalski
patent: 3860391 (1975-09-01), Kling et al.
patent: 4337060 (1982-01-01), Dalmas
patent: 4363699 (1982-04-01), DeCeuster et al.
patent: 4496472 (1985-02-01), Schafer et al.
patent: 4541944 (1985-11-01), Sanderson
patent: 4725281 (1988-02-01), Stehlin et al.
patent: 4751023 (1988-06-01), Stehlin et al.

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