(1) When it is necessary to increase the brightness of the UV varnish, the method of increasing the thickness of the varnish layer is not advocated. The flatness and lightening effect of the optical oil layer can be improved by adjusting the coating process parameters (the angle and the number of screen lines of the coating roller, etc.) and the performance of the printing equipment (pressing pressure and printing speed, etc.).
(2) Reasonably select hot stamping materials so that the adhesive layer has a good affinity with the UV varnish resin.
(3) Accurately adjust the temperature and pressure of the hot printing plate because excessive pressure and temperature will destroy the surface properties of the ink and make hot stamping more difficult. At the same time, the hot stamping speed should not be too fast.
What should you watch out for when printing on the surface of a UV-light layer?
August 22 06:01:41, 2024
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