Study on the effect of aqueous over print varnish coating on offset print quality

Bhagya, R S and Pai, Asha S (2017) Study on the effect of aqueous over print varnish coating on offset print quality. In: Manipal Research Colloquim, 04/04/2017, Manipal.

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Although quality of offset printing in terms of appearance and durability depends on the ink and substrate being printed, mostly it is depended upon different mechanical, surface, structural, optical and chemical properties of the substrate. The over print varnish (OPV) coating on the substrate after printing enhances the optical and end use property of printed sample. In this study, offset printed substrates are coated with aqueous OPV to enhance its quality. The study based on different paper substrates coated with different thicknesses of aqueous OPV. The Lightness and color opponents dimension based on CIE color space coordinates (L*a*b* values) for the appearance and rub resistance as well as coefficient of friction for the end use properties have been compared on different printed substrates. Optimum thickness of the coating that provide better optical and end use characteristics to the printed samples has been concluded.

Item Type: Conference or Workshop Item (Paper)
Uncontrolled Keywords: Offset printing, Aqueous over print varnish, CIE L*a*b* colour space, rub resistance of print and coefficient of friction
Subjects: Engineering > MIT Manipal > Printing and Media
Depositing User: MIT Library
Date Deposited: 23 Jun 2017 10:20
Last Modified: 23 Jun 2017 10:36

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