Use, Characterization, and Measurement of the Gloss Effects from Pigmented Ink Jet Inks for Security Printing

Hodgson, Alan

doi:10.2352/j.imagingsci.technol.(2006)50:6(537)

Cited by 2 publications

(2 citation statements)

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“…In many application fields instrumental gloss evaluation is usually restricted to the measurement of the amount of specular reflection by use of a specular glossmeter. [1][2][3][4] However, it has been demonstrated that the correlation between human visual gloss sensation and instrumental gloss quantification by means of a specular glossmeter is rather poor. This is not surprising, given the fact that specular glossmeter readings were originally only intended to correlate in rank with the visual judgments of predefined series of specimens representing gloss variations pertinent to a particular field of industry, 5 thereby reporting on just one specific attribute of gloss perception.…”

Section: Introductionmentioning

confidence: 99%

“…In many application fields instrumental gloss evaluation is usually restricted to the measurement of the amount of specular reflection by use of a specular glossmeter . However, it has been demonstrated that the correlation between human visual gloss sensation and instrumental gloss quantification by means of a specular glossmeter is rather poor.…”

Section: Introductionmentioning

confidence: 99%

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Toward the soft metrology of surface gloss: A review

Leloup

Obein

Pointer

et al. 2013

Color Research & Application

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The most straightforward way to assess the glossiness of a surface is by measuring the specular reflectance by use of a specular glossmeter. Although alternative measurement methods have been proposed, this is still the most frequently used instrumental measurement technique for gloss evaluation until today. However, due to both the multidimensional nature of gloss perception and to the initial purpose of a specular glossmeter only to judge the gloss differences of surfaces with similar appearance, specular glossmeter results do not seem to provide a reliable basis for estimating the gloss appearance of a surface. During the past decades, increased attention has been paid to understanding how the human visual system arrives at a particular sensation of surface gloss, and which factors influence this process. This article was established in response to these new insights, and provides the reader an overview of the most important developments and findings regarding gloss measurement and gloss perception over the past 15 years. With the ultimate goal to achieve a better correspondence between gloss measurement and gloss perception in the future, issues of alternative measurement methods are considered, and some suggestions for relevant future research are proposed. V

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Toward the soft metrology of surface gloss: A review

Leloup

Obein

Pointer

et al. 2013

Color Research & Application

View full text Add to dashboard Cite

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Bronzing effect: predicting the color shine of printed surfaces by estimating the refractive index of the inks

Simonot¹,

Girardeau²,

Hébert

2023

J. Opt. Soc. Am. A

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This paper investigates the optical phenomenon responsible for the colored shine that sometimes appears at the surface of ink layers in the specular direction, often called “bronzing” or “gloss differential.” The prediction of this shine effect relies on the Fresnel formulas of the air/ink interface. The complex refractive index of the ink must therefore be determined, which is made difficult because of the roughness of inked printing supports. We propose a generic method that can be applied to any ink, without any prior knowledge of its composition or the printing substrate. In order to reduce light scattering, a solid colored area is printed with the studied ink on a glossy paper previously printed with black ink. By ellipsometry, we determine the effective refractive index of the sample. The intrinsic complex refractive index of the ink can then be extracted by modeling the optical response of the inked surface with a set of Gaussian oscillators, among which one of them approaches residual scattering. With this data, we could proceed to a fine colorimetric analysis of the bronzing color of some cyan, magenta, and yellow inks. In particular, we show that this gloss color is slightly shifted from the complementary of the ink’s usual color in diffuse reflection.

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Use, Characterization, and Measurement of the Gloss Effects from Pigmented Ink Jet Inks for Security Printing

Cited by 2 publications

References 12 publications

Toward the soft metrology of surface gloss: A review

Toward the soft metrology of surface gloss: A review

Bronzing effect: predicting the color shine of printed surfaces by estimating the refractive index of the inks

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