Radiation imagery chemistry: process – composition – or product th – Diazo reproduction – process – composition – or product – Composition or product which contains radiation sensitive...
Patent
1983-09-14
1986-07-08
Bowers, Jr., Charles L.
Radiation imagery chemistry: process, composition, or product th
Diazo reproduction, process, composition, or product
Composition or product which contains radiation sensitive...
430143, 430145, 430155, 430260, 430261, 430270, 430271, 430257, 430258, 430 5, 430302, G03C 146, G03C 152, G03C 171
Patent
active
045992959
ABSTRACT:
Disclosed is a photosensitive material which has a first photosensitive layer formed on a support body such as an aluminum plate, a peel-off layer thereon and a second photosensitive layer formed on the peel-off layer in such a manner that the second layer can be photographically exposed to light and photographically developed independently from the first photosensitive layer and the first photosensitive layer may be subsequently photographically exposed with the picture image formed on the second photosensitive layer acting as a photographic mask. After the first photosensitive layer has been photographically developed, the two photosensitive layers may be used for different purposes, for instance, using the first photosensitive layer as a printing plate and the second photosensitive layer as a photographic film for making duplicate printing plates. Since the first photosensitive layer may be photographically exposed with uncontrolled light while the second photosensitive layer may be photographically exposed with a laser beam of small intensity, this photosensitive material is highly useful for use on a scanning image processing device. Also, a method of conveniently utilizing the photosensitive material is additionally disclosed.
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Nakayama, T. et al., Photo Sci. Eng., vol. 22, No. 3, 5-6/1978, pp. 137-141.
Kondo Syuzi
Toei Keiji
Yamano Akira
Bowers Jr. Charles L.
Dainippon Screen Seizo K.K.
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