Process for bleaching fibrous material by hydrogen peroxide

Details Process for bleaching fibrous material by hydrogen peroxide Process for bleaching fibrous material by hydrogen peroxide

1981-09-29

1983-04-05

Tungol, Maria Parrish

Bleaching and dyeing; fluid treatment and chemical modification

Bleaching

Chemical

8107, D06L 304, D06L 314

Patent

active

043789676

ABSTRACT:
A fibrous material is bleached by hydrogen peroxide in a weakly acidic state at a pH of 5-7, and then in a weakly alkaline state at a pH of 8.5-1.1 by adding an alkaline agent to the hydrogen peroxide by one whole charge or continuously after the bleaching in the weakly acidic state and utilizing the remaining hydrogen peroxide. The bleached fibrous material has a soft handling and a high whiteness, and no bleaching unevenness.

REFERENCES:
patent: 2057296 (1936-10-01), Fabian et al.
patent: 2194358 (1940-03-01), Hundt et al.
patent: 2283141 (1942-05-01), Kauffman et al.
patent: 2875018 (1959-02-01), Easton et al.
patent: 3251731 (1966-05-01), Gard
patent: 3811833 (1974-05-01), Statler
patent: 4060385 (1977-11-01), Katz

Affiliated with

Also associated with

Rating

Process for bleaching fibrous material by hydrogen peroxide does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process for bleaching fibrous material by hydrogen peroxide, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for bleaching fibrous material by hydrogen peroxide will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-564258