| 摘要 |
A mobile phone case using photochromic colors is provided to be injection-manufactured by injecting the photochromic colors changing according to UV rays into synthetic resin colors of the case in proper combination ratio, thereby obtaining beautiful and various colors of the mobile phone case. 1.5% of photochromic colors and 98.5% of polystypene granules are mixed with together. While 7-8 micrometers of particles are maintained, the photochromic colors dissolved in a standard organic solvent in pH 7-9 are combined with synthetic resin colors in 0.2% to 5% weight ratio to manufacture a mobile phone case. In order to prevent quality change of the photochromic colors, a UV absorbent and an antioxidant are further contained during the combination process.
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