Title:
装飾品の表面処理方法、装飾品および電子機器
Document Type and Number:
Japanese Patent JP3557868
Kind Code:
B2
Abstract:
When machine works such as a honing processing, nicking processing or mirror finishing are applied on the surface 10a of the facing member of watches and clocks composed of Ti and Ti alloy, a layer of Ti oxide is formed to cause surface blackening. This oxide layer or other foreign substances are eliminated, for example, by a chemical etching or electropolishing by immersing in a etching solution, followed by forming a transparent protective layer on the surface 10a by coating, for example, with a glass coating solution and drying. The etching solution described above preferably comprises a mixed solution containing HF, HNO3 and H2SO4. The arrangement prevents the surface of Ti and Ti alloy from contamination with fingerprints and being scratched, as well as enhancing the degree of whiteness and improving the quality of appearance.
Inventors:
Akira Uchiyama
Application Number:
JP27783997A
Publication Date:
August 25, 2004
Filing Date:
October 09, 1997
Export Citation:
Assignee:
Seiko Epson Corporation
International Classes:
G04B37/00; C23D3/00; C23D5/00; C23D5/02; C23D5/06; C23F1/26; C25F1/00; C25F3/26; G04B37/22; (IPC1-7): C23D5/02; C23D3/00; C23D5/00; C23F1/26; C25F3/26; G04B37/00; G04B37/22
Domestic Patent References:
| JP63011563U | ||||
| JP7311369A | ||||
| JP3153880A | ||||
| JP4041656A |
Attorney, Agent or Firm:
Masahiko Ueyanagi
Osamu Suzawa
Osamu Suzawa