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Proceedings Paper

Laser plate-printing system using TiO2 photoreceptor
Author(s): Youichi Ishibai; Mizuho Okada; Hajime Murakami; Sadao Murasawa; Mamoru Yoshiyama
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Paper Abstract

The halftone dot image formed on a Titanium Dioxide (TiO2) photoreceptor with liquid toner has high resolution and sufficient sharpness. We have applied these materials to the graphic arts industry in two ways: one is the application to a direct digital color proofing (DDCP) system, the other is to a direct digital plate printing (DDPP) system. In the DDPP system, dot image is directly recorded on a TiO2 photoreceptor (TiO2 press plate) without using dot film. The exposure light source is an He-Ne laser which is the same light source as that of the DDCP system. Therefore, a proofing image and color separation press plates are produced using the same apparatus and materials. In offset printing, a TiO2 press plate is capable of producing a high quality print. Dots on the paper have fine shape and uniform density distribution. The quality is little affected by the increase of fountain solution. The TiO2 press plate is also applicable to high quality color printing because of its consistent printing quality and high stability of plate size.

Paper Details

Date Published: 18 June 1993
PDF: 7 pages
Proc. SPIE 1912, Color Hard Copy and Graphic Arts II, (18 June 1993); doi: 10.1117/12.146275
Show Author Affiliations
Youichi Ishibai, Ishihara Sangyo Kaisha, Ltd. (Japan)
Mizuho Okada, Ishihara Sangyo Kaisha, Ltd. (Japan)
Hajime Murakami, Ishihara Sangyo Kaisha, Ltd. (Japan)
Sadao Murasawa, Ishihara Sangyo Kaisha, Ltd. (Japan)
Mamoru Yoshiyama, DS Technical Research Co., Ltd. (Japan)

Published in SPIE Proceedings Vol. 1912:
Color Hard Copy and Graphic Arts II
Jan Bares, Editor(s)

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