Process of bleaching laundry

Details Process of bleaching laundry Process of bleaching laundry

1990-12-17

1992-06-16

Clingman, A. Lionel

Bleaching and dyeing; fluid treatment and chemical modification

Bleaching

Chemical

28107, 25218627, 25218628, 25218630, 25218637, 25218638, 25218641, 25218642, D06L 302, D06L 316, C11D 754

Patent

active

051221578

ABSTRACT:
A process for bleaching domestic laundry in a household wash cycle, comprising prewashing the laundry in an alkaline bath with a pH value between 9 and 13 and at a temperature between about 40.degree. C. and 70.degree. C. in the presence of at least one peroxide bleaching agent and an uncomplexed barium, said barium being present in an amount between about 0.5.times.10.sup.-3 and 250.times.10.sup.-3 gram-atoms per kg of bath.

REFERENCES:
patent: 3210284 (1965-10-01), Duvall
patent: 3437599 (1969-04-01), Helmick et al.
patent: 4620935 (1986-11-01), Baxter et al.
patent: 4623357 (1986-11-01), Urban
patent: 4631141 (1986-12-01), Baxter
patent: 4699623 (1987-10-01), Dubreux et al.
patent: 4810408 (1989-03-01), Dubreux et al.
patent: 4810410 (1989-03-01), Diakun et al.

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