Radiation imagery chemistry: process – composition – or product th – Transfer procedure between image and image layer – image... – Diffusion transfer process – element – or identified image...
Patent
1996-05-10
1997-12-23
Schilling, Richard L.
Radiation imagery chemistry: process, composition, or product th
Transfer procedure between image and image layer, image...
Diffusion transfer process, element, or identified image...
430204, 430206, G03C 840, G03C 852, G03F 707
Patent
active
057006229
ABSTRACT:
A process for simply and rapidly producing a lithographic printing plate is disclosed, which comprises image-wise exposing a silver halide photosensitive material comprising a substantially water-insoluble basic metal compound and optionally having a physical-development nucleus layer on the external surface thereof, superposing the silver halide photosensitive material either after or simultaneously with the image-wise exposure on an image-receiving material which contains a complex-forming compound and has a physical-development nucleus layer on the external surface thereof or on a sheet which contains a complex-forming compound, in such a manner that the coating side of the photosensitive material is in contact with the coating side of the image-receiving material or the sheet, heating the superposed materials in the presence of a reducing agent and water, and subsequently separating both materials from each other to form a silver image as an ink-receptive area on the physical-development nucleus layer by means of silver salt diffusion transfer. The printing plate of the present invention has improved impression capacity.
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Hirai Hiroyuki
Mihara Yuji
Fuji Photo Film Co. , Ltd.
Schilling Richard L.
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