Printing the light

Parraman, Carinna; Klein, Susanne

Abstract

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.

• Journal Article Type: Article
• Acceptance Date: Dec 16, 2020
• Online Publication Date: Jan 24, 2021
• Publication Date: Feb 1, 2021
• Deposit Date: Jan 26, 2021
• Publicly Available Date: Jan 27, 2021
• Journal: Coloration Technology
• Print ISSN: 1472-3581
• Electronic ISSN: 1478-4408
• Publisher: Wiley
• Peer Reviewed: Peer Reviewed
• Volume: 137
• Issue: 1
• Pages: 86-89
• DOI: https://doi.org/10.1111/cote.12523
• Keywords: Materials Science (miscellaneous); General Chemical Engineering; Chemistry (miscellaneous)
• Public URL: https://uwe-repository.worktribe.com/output/7033581
• Additional Information: Received: 2020-04-17; Accepted: 2020-12-16; Published: 2021-01-24