Next Article in Journal
Poultry Shelf-Life Enhancing Potential of Nanofibers and Nanoparticles Containing Porphyra dioica Extracts
Next Article in Special Issue
Texture Evaluation of Automotive Coatings by Means of a Gonio-Hyperspectral Imaging System Based on Light-Emitting Diodes
Previous Article in Journal
Effects of Ti, Ni, and Dual Ti/Ni Plasma Immersion Ion Implantation on the Corrosion and Wear Properties of Magnesium Alloy
Article

Evaluating the Graininess Attribute by Visual Scaling for Coatings with Special-Effect Pigments

1
Department of Optics, Pharmacology and Anatomy, University of Alicante, 03690 Alicante, Spain
2
Campus d’Alcoi, Universitat Politècnica de València, 03801 Alicante, Spain
*
Author to whom correspondence should be addressed.
Coatings 2020, 10(4), 316; https://doi.org/10.3390/coatings10040316
Received: 20 February 2020 / Revised: 12 March 2020 / Accepted: 24 March 2020 / Published: 26 March 2020
(This article belongs to the Special Issue Visual Appearance of Transportation Coatings)
In our society, objects’ visual appearance is an essential factor because it allows us to recognize and differentiate one object from another. In different industrial sectors like cosmetics, textiles and automotive, special-effect pigments are largely used to achieve attractive visual features. These pigments provide a color change with viewing and illumination direction, and visually provide texture. Depending on a finish’s properties, and also on the viewing and illumination conditions, coatings exhibit sparkle or a graininess-like texture. Currently, not many scientific works on the visual perception of these texture effects can be found in the literature. In addition, choice of experimental method can influence the measurement scale obtained from visual data. For this reason, the purpose of this work was to analyze graininess visual scaling constructed by two different psychophysical methods. The experimental design was based on the rank-order and paired-comparison methods. The data analysis was conducted by following the law of comparative judgments to obtain a visual scale of the graininess attribute to compare it to instrumental data. A good correlation appeared between both magnitudes with a correlation coefficient close to 0.9. Both methods provided useful results with a reasonable correspondence between them, which ensures that data can be considered reliable, while the visual obtained scale can act as a good graininess scale perceived by the human visual system. View Full-Text
Keywords: special-effect pigments; graininess; psychophysical experiment; visual perception special-effect pigments; graininess; psychophysical experiment; visual perception
Show Figures

Figure 1

MDPI and ACS Style

Perales, E.; Micó-Vicent, B.; Huraibat, K.; Viqueira, V. Evaluating the Graininess Attribute by Visual Scaling for Coatings with Special-Effect Pigments. Coatings 2020, 10, 316. https://doi.org/10.3390/coatings10040316

AMA Style

Perales E, Micó-Vicent B, Huraibat K, Viqueira V. Evaluating the Graininess Attribute by Visual Scaling for Coatings with Special-Effect Pigments. Coatings. 2020; 10(4):316. https://doi.org/10.3390/coatings10040316

Chicago/Turabian Style

Perales, Esther, Bàrbara Micó-Vicent, Khalil Huraibat, and Valentín Viqueira. 2020. "Evaluating the Graininess Attribute by Visual Scaling for Coatings with Special-Effect Pigments" Coatings 10, no. 4: 316. https://doi.org/10.3390/coatings10040316

Find Other Styles
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Back to TopTop