Stock material or miscellaneous articles – Composite – Of metal
Patent
1978-03-07
1980-04-15
Ansher, Harold
Stock material or miscellaneous articles
Composite
Of metal
428908, 430155, 430276, 430285, 430302, 430525, G03F 702, G03C 194, G03C 152
Patent
active
041984706
ABSTRACT:
A base plate adapted to be coated with a light-sensitive diazo resin, and a lithographic plate which may be prepared therefrom. The base plate includes a substrate comprising a metal support and having a water-wettable, hydrophilic surface. Over the substrate and in direct contact with the surface is a layer comprising an oleophilic ink-receptive organic resin adapted to receive a light-sensitive coating comprising a diazo resin sensitizer. The oleophilic resin layer is permeable to the sensitizer so that it may penetrate substantially through the resin layer to establish sufficient contiguity between the diazo resin and the substrate so that both the light-sensitive coating and the organic resin layer become anchored to the substrate in the areas of exposure when the light-sensitive coating is exposed to light. Methods of preparing the base plate and lighographic plate are also disclosed.
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Meador Jim D.
Parker Edward H.
Ansher Harold
Western Litho Plate & Supply Co.
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