| 摘要 |
PROBLEM TO BE SOLVED: To sufficiently impart an antibacterial effect by silver ions onto the surface of a plastic molded article. SOLUTION: A solution A is prepared by mixing ultrafine silver particles having a particle size of≤0.01μm and fine ceramic particles having the particle size of≤0.1μm in an aqueous ammonia, and a solution B is also prepared by blending isopropyl alcohol and a water-soluble urethane resin in water. After mixing the solutions A and B, the mixture is immediately applied to the inside of a mold, and then a plastic molding material melted at≥380°C is injected into the mold. Thereby, an antibacterial thin film layer which holds fine ceramic particles including ultrafine silver particles on the surface of the molded article is formed by molding heat at the contact portion of the mold and the molding material. COPYRIGHT: (C)2005,JPO&NCIPI
|
