Process for preparation of black coloring material and...

Details Process for preparation of black coloring material and... Process for preparation of black coloring material and...

C - Chemistry, Metallurgy

09

B

8/28

C09B 61/00 (2006.01) C09B 67/20 (2006.01)

Patent

CA 2024014

A novel black coloring material is obtained by treating a chitosan with a dyestuff of the lithospermum root. If a water-insoluble chitosan is used as the chitosan, a finely divided black coloring material is obtained, and if a gelatinous chitosan salt is used as the chitosan, a gelatinous black coloring material is obtained. If a water-soluble chitosan, chitosan oligosaccharide or D-glucosamine, or a salt thereof is used as the chitosan, a liquid black coloring material is obtained. If a powdery polymeric substance is treated with such a black coloring material, a polymer-based black coloring material is obtained, and if a fiber is dyed with such a black coloring material, the fiber is dyed to a black color having a low lightness.

Affiliated with

Also associated with

Rating

Process for preparation of black coloring material and... 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 preparation of black coloring material and..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for preparation of black coloring material and... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1461142