| 摘要 |
PURPOSE: A method for evaluating the degreed of white muddiness of UV protecting agent is provided to reduce error due to difference of skin color and to obtain reliable result. CONSTITUTION: A method for evaluating the degree of white muddiness of UV protecting agent comprises a step of setting standard for the degree of white muddiness. The setting method comprises: a step of making standard sample with difference titanium dioxide content; a step of applying the standard samples on a synthetic brown leather using a puff; and a step of measuring the value of white muddiness. The content of titanium dioxide is 5 weight%, 10 weight%, 15 weight%, and 20 weight%. |
