Process for removing permanganate stains from articles

Details Process for removing permanganate stains from articles Process for removing permanganate stains from articles

1990-07-31

1991-11-19

Willis, Prince E.

Bleaching and dyeing; fluid treatment and chemical modification

Bleaching

Chemical

8101, 8110, 8111, D06L 306

Patent

active

050663062

ABSTRACT:
A process for bleaching articles, such as fabrics, comprising the steps of treating an article with a permanganate bleaching agent and then reducing the permanganate with a reducing composition comprised of ammonium bisulfite and ammonium sulfite.

REFERENCES:
patent: 1768819 (1930-07-01), Bradley et al.
patent: 2052320 (1936-08-01), Sjostrom
patent: 2172233 (1939-09-01), Wilson
patent: 3384444 (1968-05-01), Simpson et al.
patent: 3589922 (1971-06-01), Asdell et al.
patent: 3732171 (1973-05-01), Kuhajek et al.
patent: 4795476 (1989-01-01), Bean et al.

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