Laser marking article and laser marking method

Details Laser marking article and laser marking method Laser marking article and laser marking method

1997-01-02

1999-04-27

Dixon, Merrick

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Adhesive outermost layer

428343, 428 409, 428203, B32B 712

Patent

active

058979387

ABSTRACT:
The present invention relates to a laser marking article having two or more layers of thin films on the surface thereof, wherein one of the layers other than the outermost layer is a thin film made of a laser marking ground composition containing a laser beam-absorbing whitish inorganic compound powder and a binder as essential ingredients, and to a laser marking method comprising irradiating said laser marking article with a laser beam.
According to the present invention, a vivid white-colored mark can be formed on the surface of an article even in case of low-energy laser irradiation or even in case of high-speed marking.

REFERENCES:
Patent Abstracts Of Japan vol. 018, No. 292 (M-1615), Jun. 3, 1994 & JP06055853A (Murata MFG Co., Ltd), Mar. 1, 1994 *Abstract.
Copy of the European Search Report dated May 12, 1997.

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