Printing the light

Parraman, Carinna; Klein, Susanne

doi:10.1111/cote.12523

Cited by 3 publications

(3 citation statements)

References 5 publications

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“…The Spectraval™ pearlescent colorants developed by Merck consist of mica and titanium dioxide layers that reflect specific narrow bands associated with the primary colors red (R), green (G), and blue (B) [47]. At the microscale, as shown in Figure 4, Spectraval™ reflective flakes appear translucent and have iridescent properties.…”

Section: Spectraval Effect 'Pigments'mentioning

confidence: 99%

Printing with tonalli: Reproducing Featherwork from Precolonial Mexico Using Structural Colorants

Trujillo-Vazquez,

Abedini,

Pranovich

et al. 2023

Colorants

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Two of the most significant cases of extant 16th-century featherwork from Mexico are the so-called Moctezuma’s headdress and the Ahuizotl shield. While the feathers used in these artworks exhibit lightfast colors, their assembly comprises mainly organic materials, which makes them extremely fragile. Printed media, including books, catalogs, educational materials, and fine copies, offer an accessible means for audiences to document and disseminate visual aspects of delicate cultural artifacts without risking their integrity. Nevertheless, the singular brightness and iridescent colors of feathers are difficult to communicate to the viewer in printed reproductions when traditional pigments are used. This research explores the use of effect pigments (multilayered reflective structures) and improved halftoning techniques for additive printing, with the objective of enhancing the reproduction of featherwork by capturing its changing color and improving texture representation via a screen printing process. The reproduced images of featherwork exhibit significant perceptual resemblances to the originals, primarily owing to the shared presence of structural coloration. We applied structure-aware halftoning to better represent the textural qualities of feathers without compromising the performance of effect pigments in the screen printing method. Our prints show angle-dependent color, although their gamut is reduced. The novelty of this work lies in the refinement of techniques for printing full-color images by additive printing, which can enhance the 2D representation of the appearance of culturally significant artifacts.

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Section: Spectraval Effect 'Pigments'mentioning

confidence: 99%

Printing with tonalli: Reproducing Featherwork from Precolonial Mexico Using Structural Colorants

Trujillo-Vazquez,

Abedini,

Pranovich

et al. 2023

Colorants

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“…Screen printing with Merck RGBW pigments is presented in Ref. [3]. There, the authors indicate the need of the dot off dot printing with RGBW inks.…”

Section: Introduction and Related Workmentioning

confidence: 99%

Dot Off Dot Screen Printing with RGBW Reflective Inks

Pranovich¹,

Valyukh²,

Gooran³

et al. 2023

jist

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General rightsCopyright and moral rights for the publications made accessible in the public portal are retained by the authors and/or other copyright owners and it is a condition of accessing publications that users recognise and abide by the legal requirements associated with these rights. Users may download and print one copy of any publication from the public portal for the purpose of private study or research.  You may not further distribute the material or use it for any profit-making activity or commercial gain  You may freely distribute the URL identifying the publication in the public portal If you believe that this document breaches copyright please contact us providing details, and we will remove access to the work immediately and investigate your claim.

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“…Generating color in a print-whether in a traditional 2D print or modern 3D print-that comes close to either the original coloration or the creator's idea has been recognized as difficult since the invention of print. Perceived color is hard to quantify and with the advent of new printing and coloration methods, it has become even more difficult [4]. Even today, soft and hard proofing, the quality control of color reproduction, are done by human observers [5].…”

Section: Introductionmentioning

confidence: 99%

The Amber Project: A Survey of Methods and Inks for the Reproduction of the Color of Translucent Objects

et al. 2022

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Unlike regular pigments based on selective light absorption, the so-called “effect pigments″ are based on the phenomena of structural color, or selective reflectance. Structural color has appealing aesthetic qualities, such as angle-dependent hue, and is able to produce lightfast colors. When used as a pigment, however, the gamut of the print is more limited, the color is difficult to measure, and therefore color management and preprint process become challenging. The aim of this paper is to compare the behavior of effect pigments in the processes of lithographic and screen printing with standard pigments used in so-called process inks, and to analyze their optical properties when used on their own or in combination with absorption pigments. An image of amber beads was printed as screen prints and lithographs. Three sets of inks were used: Set one: Standard process inks in the colors cyan, magenta, yellow and black (CMYK); set two: RGB inks formulated with Merck Spectraval™ pearlescent pigments which allow additive red, green, blue printing on a black substrate; and set three: golden inks formulated with pigments from the Merck Iriodin™ and Pyrisma™ effect pigment range. The image was printed on white and black paper. The optical appearance was assessed visually, and spectra and color coordinates were measured.

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Printing the light

Abstract: This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

Cited by 3 publications

References 5 publications

Printing with tonalli: Reproducing Featherwork from Precolonial Mexico Using Structural Colorants

Printing with tonalli: Reproducing Featherwork from Precolonial Mexico Using Structural Colorants

Dot Off Dot Screen Printing with RGBW Reflective Inks

The Amber Project: A Survey of Methods and Inks for the Reproduction of the Color of Translucent Objects

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