Optical brightener containing positive working color...

Details Optical brightener containing positive working color... Optical brightener containing positive working color...

G - Physics

03

F

96/206

G03F 3/10 (2006.01) G03F 7/004 (2006.01)

Patent

CA 1321096

Abstract Of The Disclosure This invention relates to positive working photosensitized sheet constructions which, upon exposure to an actinic radiation source through a screened image, can accurately reproduce said image. The construction is useful as a color proofing film which can be employed to predict the image quality from a lithographic printing process. The element is composed of a substrate, colored photosensitive layer and adhesive layer. The adhesive layer contains an optical brightener compound which reduces residual yellow staining derived from the naphthoquinone diazide sensitizer.

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