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US 4,174,216 AGranted
Process for image reproduction using multilayer photosensitive tonable element
AssigneeE. I. Du Pont de Nemours and Company
InventorsAbraham B. Cohen, Roxy N. Fan
Life of this patent
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Abstract
An image reproduction process which comprises exposing a multilayer element comprising (1) cover sheet, (2) photoadherent layer, and (3) tonable contiguous layer; stripping the cover sheet with either the exposed or unexposed areas of the photoadherent layer adhered thereto while the other areas of the photoadherent layer remain on the contiguous layer; and toning the areas of the contiguous layer from which the photoadherent layer were removed. Reverse and duplicate images can be produced.
Claims20
An image reproduction process which comprises
- (1) exposing imagewise to actinic radiation a peel apart photosensitive element comprising, in order, from top to bottom (a) a strippable cover sheet, (b) a photoadherent layer comprising a material with ethylenically unsaturated or benzophenone type groups, (c) a tonable organic contiguous layer, and optionally (d) a sheet support;
- (2) stripping the cover sheet from the element with either the exposed or unexposed areas of the photoadherent layer adhered to the cover sheet while the other areas of said photoadherent layer remain on said contiguous layer;
- and
- (3) toning by embedding colorant or particulate material into the areas of the contiguous layer from which areas of the photoadherent layer were removed.
1 more element
Dependencies are inferred from the claim text.