| 摘要 |
PROBLEM TO BE SOLVED: To provide a dyed product having excellent fastness while utilizing a natural color tone obtained by using a natural dye. SOLUTION: There is provided a method for dyeing a material to be dyed with both a synthetic dye and the natural dye composed of an extracted component from an animal or a plant. In the process, a method for dyeing with which the dyeing is carried out in a supercritical fluid simultaneously using the synthetic dye and the natural dye and a method for dyeing having a step of carrying out the dyeing with the synthetic dye and a step of carrying out the dyeing in the supercritical fluid with the natural dye are suitable. Thereby, the method for dyeing with a small load on the surrounding environment can be provided and even active components contained in the animal or plant can be impregnated in combination. COPYRIGHT: (C)2004,JPO&NCIPI
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