GRAVURE PRINTING APPARATUS, GRAVURE PRINTING METHOD, AND PRINTED MATTER MANUFACTURING METHOD
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United States of America Patent
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Issued Date -
May 30, 2019
app pub date -
Jun 21, 2017
filing date -
Jun 21, 2017
priority date (Note) -
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Abstract
Provided is a gravure printing apparatus, a gravure printing method, and a printed matter manufacturing method in which the ink transfer characteristics in gravure printing are controlled to be improved. The gravure printing apparatus includes: a gravure plate cylinder; a doctor blade configured to scrape off a superfluous ink from a plate surface of the gravure plate cylinder; an impression cylinder configured to press a base material to be printed against the plate surface to transfer the ink remaining in a cell of the gravure plate cylinder; and a transfer characteristics control mechanism configured to control ink transfer characteristics by supplying a gas selected from the group consisting of air having predetermined humidity, dry air, and an inert gas to at least a part of an ink transfer characteristics control area between an ink scraping-off point of the doctor blade on the plate surface and a pressing point of the impression cylinder on the plate surface.
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