Water-soluble UV-Protecting Material Based on Cyclodextrin and Method for environmentally benign manufacturing thereof

摘要

A UV protecting material prepared through a solid phase reaction without using an organic solvent is provided to be environment-friendly and show excellent water-solubility, thereby being easily removed and disposed without using any detergent or cleanser. A water-soluble UV protecting material comprises cyclodextrin such as beta-cyclodextrin and a UV absorbing material such as 2,4-bis-[4-(2-ethyl-hexyloxy)-2-hydrody]-phenyl-6-(4-methoxyphenyl)-(1,3,5)-triazine and is characterized in that the cyclodextrin and the UV absorbing material form an inclusion compound through a solid phase reaction without using an organic solvent. A method for preparing the water-soluble UV protecting material comprises the steps of: (a) milling a mixture of the cyclodextrin and the UV absorbing material to generate the inclusion compound using high speed ball milling; and (b) selectively acquiring the inclusion compound from the milled powder. Further, the cyclodextrin is alpha-cyclodextrin, beta-cyclodextrin, gamma-cyclodextrin or eta-cyclodextrin.