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Proceedings Paper

Digital image color printing on plastics using a slab RF-excited CO2 laser
Author(s): Masaru Kawarazaki; Noriyo Sakurada; Yoshio Ishii; Yuzuru Kubota; Kazuhiro Watanabe
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Paper Abstract

An innovative coloring method for whole plastic materials using a laser system (Laser Plastic Coloring: LPC method) has been developed in this work. Irradiating a laser beam to a dye which is diluted with water, the dye solution is heated and a material can be dyed at a laser exposed local area. A CO2 laser was used as a heating source since the absorptivity of a CO2 laser to water is higher than that of the others laser. Using this LPC method, laser color marking and color image expression has been attempted. Four colors of cyan, magenta, yellow, and black (CMYK) figures and characters have been created using laser marking method. By mixing the dots of two colors, another color printing have been created. It makes possible to create more other color printing that the mixing rate of the dots of two colors change variously. From digital image which includes color information, a colorful image expression on a plastic object has been successfully obtained using the LPC method combined with a segmented pixel drawing (SPD) method developed in our laboratory in order to make an artistic drawing.

Paper Details

Date Published: 10 November 2003
PDF: 5 pages
Proc. SPIE 5120, XIV International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers, (10 November 2003); doi: 10.1117/12.515849
Show Author Affiliations
Masaru Kawarazaki, Soka Univ. (Japan)
Noriyo Sakurada, Soka Univ. (Japan)
Yoshio Ishii, Soka Univ. (Japan)
Yuzuru Kubota, Soka Univ. (Japan)
Kazuhiro Watanabe, Soka Univ. (Japan)


Published in SPIE Proceedings Vol. 5120:
XIV International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers
Krzysztof M. Abramski; Edward F. Plinski; Wieslaw Wolinski, Editor(s)

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