Flexographic printing plate precursor comprising a (photo)thermographic recording layer
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United States of America Patent
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May 7, 2002
Grant Date -
N/A
app pub date -
Jul 13, 2000
filing date -
Jul 13, 1999
priority date (Note) -
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status (Latency Note)
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Abstract
A material is disclosed which is suitable for making a flexographic printing plate and comprises in the order given a base, a photopolymer layer and a photothermographic or thermographic recording layer which contains an organic silver salt. By image-wise exposing the recording layer, a photomask is obtained through which the photopolymer layer can be subsequently exposed. Using a suitable solvent, the (photo)thermographic recording layer can be removed and the unexposed areas of the photopolymer layer can be washed out simultaneously in a single development step. The relief image thus obtained can be used as a print master for flexographic printing.
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