| 摘要 |
PURPOSE: A method for manufacturing glasses which radiates negative ions and far infrared rays is provided to prevent the generation of skin-disease by injection-molding a glasses-frame and glasses-legs with a raw material radiating far infrared rays. CONSTITUTION: Zirconia 20 weight%, Rhea earth(rare earth materials) 10 weight%, phosphorus pentoxide 5 weight%, alumina 3 weight%, titanium dioxide 0.5 weight%. ferric oxide 0.5 weight%, magnesium oxide 0.5 weight%, calcium oxide 0.5 weight%, and monazite powder 60 weight% are mixed into one binder. The binder 10 weight% and synthetic resin material 90 weight % are mixed to prepare a mixture. The mixture is injected into an injection-molding device. An injection-molding operation is performed to form a glasses-frame and glasses-legs.
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