Open AccessINVESTIGATION OF THE OPTICAL PROPERTIES OF FLEXOPRAPHIC PRINTS ON PVC AND PET FILMS / FLEKSOGRAFINIŲ ATSPAUDŲ ANT PVC IR PET PLĖVELIŲ OPTINIŲ SAVYBIŲ TYRIMAS
Author(s) -
Jana Valauskaitė,
Rimantas Stonkus
Publication year - 2017
Publication title -
mokslas - lietuvos ateitis
Language(s) - English
Resource type - Journals
eISSN - 2029-2341
pISSN - 2029-2252
DOI - 10.3846/mla.2016.979
Subject(s) - cyan , materials science , color difference , color measurement , optics , artificial intelligence , computer science , physics , enhanced data rates for gsm evolution
An optical properties of the flexographic prints on the shrink sleeve has been experimentally investigated. Two main materials of shrink sleeve: PVC and PET were used for the research. Films were printed using UV flexographic inks. The color changes arised during shrinking of the films were analysed. Investigations were done using CMYK and PANTONE color matching systems. Color characteristics CIE L*a*b* and color difference E at different shrink level of the film was estimated. It was found that colors become darker during the shrinking of the film. In the case of rasterize image it is related to the deformation of the raster dots, decrease of the spaces between the raster dots and other factors. The biggest changes in the CMYK color system was determined in the Yellow color, while in the tested PANTONE color system – in the blue (P 290) color. The smallest changes in the CMYK color system was determined in the Cyan color, while in the PANTONE color system – in the white color