Developers and method of coloring lithographic printing members

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United States of America Patent

PATENT NO 8420297
APP PUB NO 20120045720A1
SERIAL NO

12860149

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Abstract

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A color contrast image in imaged lithographic printing precursors can be obtained by contacting the imaged precursor with a coloration solution containing a colorless form of a photochromic compound. Residual amounts of this compound attached to the oleophilic surface of the imaged precursor can be changed to its colored form when exposed to UV light. The coloration solution can be an alkaline or acidic developer or an alkaline or acidic solution used separately after development. The coloration solution can also be a gum solution.

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Patent Owner(s)

  • EASTMAN KODAK COMPANY

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Figov, Murray Ra'anana, IL 48 599
Levi, Ilan Natanya, IL 4 10
Marom, Moshe Herzlia, IL 10 14
Matzner, Eynat Adi, IL 28 88
Wang, Ruizheng Rochester, US 36 158

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