| 摘要 |
PURPOSE:The titled cosmetic safe to human body free from skin irritation, having improved light resistance, color tone, etc., showing improved durability of makeup, touch, etc., obtained by blending a base for cosmetic with color pigment obtained by subjecting porous silk fibroin powder to mordant dyeing with a natural dyestuff by the use of a water-soluble Al salt as mordant. CONSTITUTION:A base for cosmetic is blended with 5-30wt% based on total amount of prescription of cosmetic of pigment which is obtained by subjecting porous silk fibroin powder (maximum particle diameter is 0.5-100mu, especially 3-30mu) having >=50wt%, preferably >=90wt% regenerated silk fibroin consisting of hot water-insoluble fibroin (beta type), containing >=300mul/g, especially >=600mul/g pores with <=1mu pore diameter to mordant dyeing with a natural dyestuff (0.1-30wt% natural dyestuff based on fibroin powder is used) selected from SOHO dyestuff, gardenia dyestuff, saffron dyestuff, alizarin, bluish purple pigment, indigo dyestuff, etc., by the use of a water-soluble aluminum salt as a mordant. |
