Dyestuff filler derived from kraft black liquor

Details Dyestuff filler derived from kraft black liquor Dyestuff filler derived from kraft black liquor

1974-07-05

1977-02-08

Sebastian, Leland A.

Bleaching and dyeing; fluid treatment and chemical modification

Treatment of hides, skins, feathers and animal tissues

Tanning

8 79, 8173, 252353, 260124R, 260124A, C09B 6700, C07G 108

Patent

active

040070042

ABSTRACT:
A dyestuff filler material with humectant properties derived from kraft black liquor is disclosed. The process for obtaining the dyestuff filler material involves the acidification of kraft black liquor followed by separation of the precipitated portion, such as by filtration. The filtrate from this separation is then treated to solubilize the remaining portion of lignin, which primarily is low molecular weight lignin. This step is followed by a stabilization step, for example, with air to oxidize the filler material to minimize azo dye reduction.

REFERENCES:
patent: 2729534 (1956-01-01), Ehrensperger
patent: 3156520 (1964-11-01), Blaisdell
patent: 3726850 (1973-04-01), Detroit
patent: 3763139 (1973-10-01), Falkehag
patent: 3769272 (1973-10-01), Hintz
patent: 3864276 (1975-02-01), Benko

Affiliated with

Also associated with

Rating

Dyestuff filler derived from kraft black liquor does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Dyestuff filler derived from kraft black liquor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Dyestuff filler derived from kraft black liquor will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1211127