System and process for persistent marking of flexo plates and plates marked therewith
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United States of America Patent
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Feb 21, 2023
Grant Date -
Nov 21, 2019
app pub date -
Jun 6, 2019
filing date -
Apr 6, 2018
priority date (Note) -
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status (Latency Note)
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Abstract
Systems and processes for making a flexo plate, and plates made thereby. Non-printing indicia defined by areas of presence and absence of polymer in the plate floor created using microdots imaged during a LAMS layer imaging step are readable downstream of the washing or other non-cured-polymer-removal step but not to print in the printing step. The non-printing indicia may define a repeating pattern of alphanumeric characters, non-text graphics, or a combination thereof. A difference in growth of plate structures corresponding to different types of microdots may be used for characterizing processing conditions.
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