Digital image color printing on plastics using a slab RF-excited CO2 laser

Masaru Kawarazaki; Noriyo Sakurada; Yoshio Ishii; Yuzuru Kubota; Kazuhiro Watanabe

doi:10.1117/12.515849

10 November 2003 Digital image color printing on plastics using a slab RF-excited CO₂ laser

Masaru Kawarazaki, Noriyo Sakurada, Yoshio Ishii, Yuzuru Kubota, Kazuhiro Watanabe

Proceedings Volume 5120, XIV International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers; (2003) https://doi.org/10.1117/12.515849
Event: XIV International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers, 2002, Wroclow, Poland

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.

Citation Download Citation

Masaru Kawarazaki, Noriyo Sakurada, Yoshio Ishii, Yuzuru Kubota, and Kazuhiro Watanabe "Digital image color printing on plastics using a slab RF-excited CO₂ laser", Proc. SPIE 5120, XIV International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers, (10 November 2003); https://doi.org/10.1117/12.515849

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