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Printing the light
Author(s) -
Parraman Carinna,
Klein Susanne
Publication year - 2021
Publication title -
coloration technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.297
H-Index - 49
eISSN - 1478-4408
pISSN - 1472-3581
DOI - 10.1111/cote.12523
Subject(s) - subtractive color , mixing (physics) , computer science , rgb color model , inkwell , reflection (computer programming) , process (computing) , dispersion (optics) , materials science , optics , process engineering , artificial intelligence , visual arts , art , engineering , physics , quantum mechanics , speech recognition , programming language , operating system
This paper explores the relationship between additive and subtractive mixing for colour printing. Using Spectraval mica pigments (Merck)—marketed as RGB pigments—colour is generated by selective reflection and prints are based on additive colour mixing principles, that when printed onto black paper, create white and a range of colours. Although currently used mostly for decorative effects, they can be the basis of additive 'process' inks, that present new opportunities for and challenges to traditional print markets. The viewing angle dependency of their selective reflection favours applications in security printing similar to the holograms on bank cards for example. Traditional measurement and modelling methods are difficult to apply due to the layering and irregular dispersion of pigments.