RAINBOW COLOR DEVELOPING WORKING METHOD

Title:

RAINBOW COLOR DEVELOPING WORKING METHOD

Document Type and Number:

Japanese Patent JP2002059700

Kind Code:

A

Abstract:

To provide a rainbow color developing working method, in which a diffraction grating developing a beautiful rainbow-colored reflected gloss can be surely formed on the surface of a matter to be worked and a working speed can be made quicker than possible in a rainbow color developing working method for obtaining the rainbow-colored reflected gloss by irradiating laser rays on the surface of the matter to be worked.

As the base material 2 of the matter to be worked 1, an aluminum plate is employed. On the surface of the aluminum base material 2, a nickel-phosphorus alloy plated layer 3 is formed by an electroless plating method. Next, this matter to be worked 1 is heat-treated in air at 150 to 600°C for 5 s to 1 hr. Then, the surface of the plated layer 3 is irradiated with pulse laser beam 10.

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Inventors:

NAGATA ITSUO
JOGAN SHIGETOSHI
ENOMOTO MASATOSHI

Application Number:

JP2000250941A

Publication Date:

February 26, 2002

Filing Date:

August 22, 2000

Export Citation:

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Assignee:

OSAKA PREFECTURE
SHOWA DENKO KK

International Classes:

B05D1/40; B42D25/30; B42D25/328; B42D25/435; B44F1/14; B44C1/22; C23C18/16; C23C18/32; C23C28/00; (IPC1-7): B44F1/14; B44F1/12; C23C28/00

Attorney, Agent or Firm:

Hisayoshi Shimizu (2 outside)

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