Method for measuring varnish film thickness of printed article and varnish film thickness measurement device
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United States of America Patent
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Jun 14, 2022
Grant Date -
Aug 1, 2019
app pub date -
Sep 4, 2017
filing date -
Sep 26, 2016
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Abstract
The present invention is a method for measuring the varnish film thickness of a printed article by obtaining the film thickness of varnish on a sheet (1) on which a pattern is printed on a base thereof with ink and the pattern is coated with the varnish, wherein a metal foil (1c) having a smooth surface is attached to the base of the sheet (1), and the film thickness of the varnish coated directly over the metal foil (1c) is detected with a spectral interference-type film thickness meter (81) so as to determine whether the film thickness of the varnish is acceptable or not on the basis of the results detected by the spectral interference-type film thickness meter (81).
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