Optical analysis of coatings including diffractive pigments using a high-resolution gonioreflectometer
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985556%3A_____%2F19%3A00495067" target="_blank" >RIV/67985556:_____/19:00495067 - isvavai.cz</a>
Result on the web
<a href="https://link.springer.com/article/10.1007%2Fs11998-018-0137-5" target="_blank" >https://link.springer.com/article/10.1007%2Fs11998-018-0137-5</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/s11998-018-0137-5" target="_blank" >10.1007/s11998-018-0137-5</a>
Alternative languages
Result language
angličtina
Original language name
Optical analysis of coatings including diffractive pigments using a high-resolution gonioreflectometer
Original language description
The aim of this article is to demonstrate a new way of measuring and understanding the appearance of pigment flake orientation and texture in special effect pigments for use in industrial coatings. We have used diffractive pigments and analyzed the relative orientation of the particles in the coating layers by evaluating their behavior in two common industry applications: solventborne and powder coatings. We have measured the interference color by taking readings with a high-resolution gonioreflectometer, in order to test the viability of automatic diffractive pigment evaluation. The results were analyzed using both psychophysical (i.e., human) and computational (i.e., mechanical) methods. Our later psychophysical and computational analysis of the visual differences that diffractive pigments present in both solventborne (1) and powder coating (2) systems for in-plane and out-of-plane geometries revealed that solventborne liquid paint systems better preserve the appearance of original diffraction gratings. This is due to enhanced orientation of the anisotropic pigment particles. The powder coating surfaces investigated, on the other hand, preserved higher intensity and thus visibility in randomly oriented solitary flakes, creating a greater sparkle contrast. We confirmed our findings by capturing and visualizing coating appearance by means of a bidirectional texture function. We then compared the diffractive pigment evaluation results with other state-of-the-art measuring device readings. We believe that our work provides valuable information on flake orientation and also compares pigment performance in a range of industrial coating systems, which may enable industrial companies to improve paint spraying processes.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20506 - Coating and films
Result continuities
Project
<a href="/en/project/GA17-18407S" target="_blank" >GA17-18407S: Perceptually Optimized Measurement of Material Appearance</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2019
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Journal of Coatings Technology and Research
ISSN
1945-9645
e-ISSN
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Volume of the periodical
16
Issue of the periodical within the volume
2
Country of publishing house
US - UNITED STATES
Number of pages
18
Pages from-to
555-572
UT code for WoS article
000463217600021
EID of the result in the Scopus database
2-s2.0-85054680837