发明名称 ORNAMENTAL MEMBER
摘要 A white ornamental member comprising a base material, an undercoat plating layer formed on the base material in a thickness of 1 mu m or above and comprising copper (or its alloy), an Sn-Cu-Pd alloy plating layer formed on the undercoat plating layer in a thickness of 0.2 mu m or above and comprising 10-20 wt.% Sn, 10-80 wt.% Cu and 10-50 wt.% Pd as the essential components, and a finish plating layer formed on the alloy plating layer in a thickness of 0.2-5 mu m and comprising at least one member selected from among Pd, Rh and Pt. As this member does not contain any Ni component, it does not cause nickel allergy even when worn. Also it can be provided in a single color of white, gold or black and in the combination of these colors at a low cost. <IMAGE>
申请公布号 EP0808921(A1) 申请公布日期 1997.11.26
申请号 EP19950939390 申请日期 1995.12.07
申请人 CITIZEN WATCH CO., LTD. 发明人 MATSUMOTO, YOSUKE;TANOKURA, YUKIO;HAMANO, KAZUMI
分类号 C25D3/50;C23C14/16;C23C28/00;C23C28/02;C25D3/56;C25D5/10;C25D7/00 主分类号 C25D3/50
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