| 摘要 |
PURPOSE: A natural dye composition with a superior durability is provided to improve anti-atopic dermatitis activity and solidity. CONSTITUTION: A natural dye composition with a superior durability comprises a natural dye(I) using cypress a leaf and a natural dye (II) using bamboo leaf. A manufacturing method of natural dye using the cypress a leaf comprises the following steps: pulverizing a mixture of water and sliced cypress a leaf; and filtering the crushed materials. A manufacturing method of natural dye using bamboo leaf comprises the following steps: pulverizing a mixture of water and the sliced bamboo leaf ; and filtering the crushed material. The manufacturing methods additionally include an aging step after pulverizing. The aging step is processed at room temperature for 7-8 days.
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