摘要:
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.
摘要:
A process for the production of a black coloring material characterised by treating a compound selected from finely powdered sugar, protein and a polyamide polymer, having amino groups with a naphthoquinone derivative represented by the general formula (1): ##STR1## wherein R.sub.1 represents a hydrogen atom, a hydroxyl group, a halogen atom, or a group represented by the following formula: ##STR2## wherein R.sub.2 represents a hydrogen atom or a hydroxyl group, R.sub.3 represents an alkyl group, an alkenyl group or a hydroxylalkyl group, and n represents 1 or 2; cosmetics comprising a black coloring material produced by the above process; and a process for staining a substrate using the obtained black coloring material.
摘要:
Provided is a method for delivering a vasoactive intestinal polypeptide (VIP) liposome product to a target tissue of a mammal. The VIP is expressed on and in a liposome. Also provided is a method of preparing the VIP liposome product comprising cholesterol, phosphatidyl choline, and phosphatidyl glycerol.