Emulsion printing plate relief coatings
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United States of America Patent
Stats
-
Aug 17, 1993
Issued Date -
N/A
app pub date -
Jul 13, 1992
filing date -
Jun 9, 1989
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An emulsion covered photo printing plate for use in printing an etchant resist pattern on a light sensitive etchant resist located on a metal web covered with an etchant resist wherein the emulsion layer contains an exterior master pattern separated from an interior master pattern by a strip line with the interior master pattern having optically clear spacers located on top of the emulsion layer opaque projections and the nonopaque emulsion layer and the exterior emulsion layer having clear spacers located on top of the exterior emulsion layer with the area of the strip line being substantially devoid of spacers to provide evacuation channel past the strip line between the exterior master pattern and the interior master pattern.
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