Radiation imagery chemistry: process – composition – or product th – Imaging affecting physical property of radiation sensitive... – Post imaging treatment with particles
Patent
1981-10-21
1983-03-08
Welsh, John D.
Radiation imagery chemistry: process, composition, or product th
Imaging affecting physical property of radiation sensitive...
Post imaging treatment with particles
430293, 430294, G03C 168
Patent
active
043761585
ABSTRACT:
A method of forming a color-proofing surprint includes the image-wise light exposing of an imaging sheet having a photoresist top layer, removing by the application of developer fluid the more soluble areas remaining after light exposure, thereby revealing image-defining areas of an underlying layer of pressure-sensitive adhesive, and applying a powdered colorant to such image-defining areas of adhesive. The residual areas of the photoresist layer may then be removed to reveal the non-imaged areas of the adhesive layer and the image-bearing adhesive surface of the sheet pressed into adhesive contact with a receiving surface. Removal of the original carrier film of the imaging sheet from the adhesive layer renders this layer accessible to receive, in image registration, the image-bearing adhesive layer, in different color, of a separate imaging sheet. Repetition of the process with additional colored images renders a multi-colored surprint proof which may ultimately be affixed, by means of the final accessible adhesive surface, to any type of printing stock in order to provide a faithful example of the appearance of a press print on such stock.
REFERENCES:
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patent: 3677757 (1972-07-01), Nishizawa
patent: 3721557 (1973-03-01), Inoue
patent: 3788846 (1974-01-01), Mayaud et al.
patent: 4053313 (1977-10-01), Fan
Keuffel & Esser Company
Welsh John D.
White Lionel N.
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