Protein macromolecular dyes
AssigneesChina Petro-Chemical Corporation, Dalian University of Technology
InventorsJinzong Yang, Shufen Zhang
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Abstract
Protein macromolecular dyes, A(B)b are disclosed, wherein A are protein macromolecules including natural protein macromolecules and modified natural protein macromolecules such as casein, gelatin and fur-protein; B are dyes including azo dyes, azo metal complex dyes and anthraquinone dyes which can react with the amino groups of the natural and modified protein macromolecules; b are integers between 1˜2500. The protein macromolecular dyes have excellent properties of crosslinking ability, better dyeing fastness, fixation ration than conventional dyes and the function of normal macromolecules such as compatibility, abilities of filling and forming membranes. They may be used in dyeing protein materials such as leather, wool and silk.
Claims10
A protein macromolecular dye obtained from the chemical reaction of protein macromolecules having amino groups reacted with dye molecules having a reactive group which can react with said amino groups in the protein macromolecule in a form of homogeneous solution, wherein the content of the dye molecules on the protein macromolecule is more than 20% by weight, and wherein the fixation of the protein macromolecular dye when dyeing leather is more than 95%.
Dependencies are inferred from the claim text.