Negative working color proofing process comprising diazo compound and polyvinyl acetal/polyvinyl alcohol/polyvinyl acetate resin
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United States of America Patent
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Feb 28, 1989
Grant Date -
N/A
app pub date -
Jul 1, 1986
filing date -
Jul 1, 1986
priority date (Note) -
Expired
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Abstract
This invention relates to negative 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.
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