CMYKIR Separations for Printing on Transparent Polymer Materials

• Main Authors: Martina Friščić, Jana Žiljak Vujić, Vilko Žiljak
• Format: Article
• Language: English
• Published: University of Zagreb, Faculty of Graphic Arts 2015-09-01
• Series: Acta Graphica
• Subjects: Infraredesign; CMYKIR separation; Flexographic print on polypropylene; Near infrared spectrum; Security graphics; Z parameter
• Online Access: http://www.actagraphica.hr/index.php/actagraphica/article/view/17

Hidden information on food packaging are carried out with INFRAREDESIGN technology procedure. The procedure implicates merging of two independent visual RGB images, followed by compound separating in process CMYKIR components. Graphic reproduction embodies picture elements - pixels with two independent appearances in two light spectrum. The first range is a visual space that we see with the bare eye and the other range of the near infrared, that is registered instrumentally. One can distinguish two information using Z glasses that selected by the absorption of light at 1000 nm. Printing on a transparent polymer material, carrying a transparent image that is designed as a protective prints with individualized line forms. Dyes are mixed as twins respecting the norm DIN4 Flexographic rare and transparent dyes viscosity 22 s. The two dyes twins have the same spectrogram in the area of 400 to 700 nm, and different spectrogram Z point near infrared spectrum.