Radiation imagery chemistry: process – composition – or product th – Diazo reproduction – process – composition – or product – Composition or product which contains radiation sensitive...
Patent
1989-05-17
1990-09-18
Michl, Paul R.
Radiation imagery chemistry: process, composition, or product th
Diazo reproduction, process, composition, or product
Composition or product which contains radiation sensitive...
430162, 430166, 430171, 430303, 430175, 430191, G03C 152, G03F 7021, G03F 7023
Patent
active
049578456
ABSTRACT:
The present invention is concerned with a printing plate of which image formation is done by photoirradiation, having a front side covered waith a peelable or removable protective layer which contains a photofading material. The printing plate is safe against fogging to light and can be used under ordinary illumination.
REFERENCES:
patent: 2702243 (1955-02-01), Schnardt
patent: 3933499 (1976-01-01), Traskos
patent: 4804614 (1989-02-01), Halle
Abiko Shigeo
Asano Masaya
Isono Masanao
Kawamura Ken
Suzuki Tetuo
Chu John S. Y.
Michl Paul R.
Toray Industries Incorporated
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