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Photochromic pigment uv xim xim hloov xim los ntawm lub hnub ci
Photochromic xim yog ib hom microcapsules. Nrog tus thawj cov hmoov qhwv hauv cov microcapsules.Pauv cov ntaub ntawv tuaj yeem hloov xim rau hauv tshav ntuj. Cov khoom zoo no muaj cov yam ntxwv ntawm cov xim tsis haum thiab lub peev xwm ntev huab cua. Nws tuaj yeem tso ncaj qha rau hauv kev faib ua feem rau cov khoom tsim nyog.
