Method of forming a photomask for a printing plate with an ink jet
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United States of America Patent
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Mar 5, 1996
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N/A
app pub date -
Jul 25, 1994
filing date -
Jul 25, 1994
priority date (Note) -
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Abstract
A method and apparatus for preparing a printing plate without the need for a photomask formed from a sheet of photographic film bearing the positive or negative of the image to be printed. According to the invention, an ink jet print head deposits ink onto a light-sensitive emulsion in a pattern which corresponds to either the positive or negative of the image to be printed. The printed pattern provides a photomask for subsequent exposure of the emulsion.
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