| 20090265861 | METHOD FOR MANUFACTURING PROTEIN FILLING AGENT FOR LEATHER UTILIZING ANIMAL HAIRS - Method for manufacturing a protein filling agent for leather utilizing animal hairs. The method includes pre-treating the animal hairs to obtain pre-treated animal hairs, wherein the pre-treating comprises soaking the animal hairs in an inorganic acid solution and a reducing agent solution. Next, the pre-treated hairs are hydrolyzed in an alkaline compound to obtain a viscous liquid and then, neutralized and dried to obtain the protein filling agent for leather. | 10-29-2009 |
