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Aligning a range of spectrophotometers / Linda Stegemann in KUNSTSTOFFE INTERNATIONAL, Vol. 108, N° 6 (06-07/2018)
[article]
Titre : Aligning a range of spectrophotometers : Digital color communication makes quality assurance more efficient Type de document : texte imprimé Auteurs : Linda Stegemann, Auteur ; Christoph Kugler, Auteur ; Martin Bastian ; Thomas Hochrein ; Walter Franz ; Fredrik Lundgren Année de publication : 2018 Article en page(s) : p. 12-15 Langues : Anglais (eng) Catégories : Assurance qualité
Colorimétrie
Communication visuelle
Couleur
Logiciels
SpectrophotomètresIndex. décimale : 535.6 Couleur Résumé : In many industries, defined colors are not only an important feature of the product, but also a growing challenge. Increasing demands on the appearance quality must be implemented more and more frequently and efficiently across global production networks. There, physical standards may enhance quality, but the digital processing and communication of color data is more efficient. Note de contenu : - Digital communication of standards
- The path to digital color communication
- Profiling the spectrophotometers
- Improved agreement between instruments from different manufacturers
- Fig. 1. On the left, the typical behavior of measuring instruments made by different manufacturers as well as by the same one is displayed. In each case, the absolute values from different spec-trophotometers form a characteristic cluster. On the right, the data subsequent to profiling is shown.
- Fig. 2. A common color tolerance for products for car interiors (outside, dE00 = 0.50) as well as the IMA (Inside) required for digital communication of standards. If mean and maximum deviations towards the reference instrument are kept, the system error corresponds to the system error when physical standards are used - minus the disavantages.
- Fig. 3. The absolute agreement dE00 between color differences of RAL samples (PP) prior and subsequent to profiling. The required value of dE00 = 0.10 was achieved by the Ci7860 subsequent to profiling.
- Fig. 4. User interface of CAPQ software. All relevant information is included.
- Table 1. The results show an improvement of the IMA, meeting the required values. In particular, the maximum deviations were clearly reduced. Thus, the data situation allows digital communication. However, the samples must be described as ideal, i.e., opaque without differences in structure or gloss.En ligne : https://drive.google.com/file/d/1_z-HpOiQrt7y6YXWUMSg8onfWzu9QnRg/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=30986
in KUNSTSTOFFE INTERNATIONAL > Vol. 108, N° 6 (06-07/2018) . - p. 12-15[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 20081 - Périodique Bibliothèque principale Documentaires Disponible Color prediction of metallic coatings from measurements at common geometries in portable multiangle spectrophotometers / Feng Heng in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 15, N° 5 (09/2018)
[article]
Titre : Color prediction of metallic coatings from measurements at common geometries in portable multiangle spectrophotometers Type de document : texte imprimé Auteurs : Feng Heng, Auteur ; Haisong Xu, Auteur ; Fuzheng Zhang ; Zhehong Wang Année de publication : 2018 Article en page(s) : p. 957-966 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Essais (technologie)
Prévision, Théorie de la
Revêtement métallique
Spectrophotomètres
vision des couleursIndex. décimale : 667.9 Revêtements et enduits Résumé : Illuminating and viewing geometries may strongly affect the color appearance of metallic coatings, which can be characterized accurately by bidirectional reflectance distribution function (BRDF) measurement devices. However, such devices with hundreds or even thousands of different geometries are usually expensive and complex. Accordingly, two modified models were developed in this study, based on the distribution of aluminum-flake pigments in the coatings, to, respectively, estimate the spectral radiance factors and the CIE tristimulus values of metallic coatings utilizing the measurements at 6 common geometries of portable multiangle spectrophotometers. Their performance was examined with 65 achromatic and 20 chromatic metallic coating samples under D65, A, and F11 illuminants. The average CIEDE2000 color differences over all 19 geometries were found to be less than 1.8 for both models, while the average CAM02-SCD and CIELAB color differences can, respectively, reach 1.7 and 2.0, indicating the effectiveness of our methods. Note de contenu : - SAMPLE PREPARATION AND MEASUREMENT GEOMETRIES : Sample preparation - Measurement geometries of X-Rite MA98
- COLOR PREDICTION : Modelig spectral radiance factor - Modeling tristimulus values
- MODEL TESTINGDOI : 10.1007/s11998-017-0026-3 En ligne : https://link.springer.com/content/pdf/10.1007%2Fs11998-017-0026-3.pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=31120
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 15, N° 5 (09/2018) . - p. 957-966[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 20232 - Périodique Bibliothèque principale Documentaires Disponible Colour perfect / Matthew Russell in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 196, N° 4502 (07/2006)
[article]
Titre : Colour perfect Type de document : texte imprimé Auteurs : Matthew Russell, Auteur Année de publication : 2006 Article en page(s) : p. 34-36 Langues : Anglais (eng) Catégories : Couleur -- Analyse
Laboratoires -- Appareils et matériel
SpectrophotomètresIndex. décimale : 667.9 Revêtements et enduits Résumé : Effective quality control will keep costs down in the long run.
There are strong arguments for investment in colour management systems but it is critical to be guided correctly to make the appropiate system for your company. Once the investment is made, support (local, e-mail, telephone, web based) and training are essential to ensure you achieve the maximum benefits from your wise investment.Note de contenu : - WHY BUY A SPECTROPHOTOMETER ? : Environment - Human eye - Communication
- WHAT TYPE OF SPECTROPHOTOMETER SHOULD YOU BUY ?
- SPHERE SPECTROPHOTOMETERS
- KEY POINTS SPHERE INSTRUMENTS
- PORTABLE 0°/45° & 45°/0° SPECTROPHOTOMETERS
- MULTI-ANGLE SPECTROPHOTOMETERS
- STAND ALONE INSTRUMENT OR SOFTWARE ?Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=27557
in POLYMERS PAINT COLOUR JOURNAL - PPCJ > Vol. 196, N° 4502 (07/2006) . - p. 34-36[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 005088 - Périodique Bibliothèque principale Documentaires Disponible
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Titre : Couleurs, mesurer "l'immesurable" Type de document : texte imprimé Auteurs : Lionel Lautesse, Auteur Année de publication : 2019 Article en page(s) : p. 14-15 Langues : Français (fre) Catégories : Colorimétrie
SpectrophotomètresIndex. décimale : 535.6 Couleur Résumé : La mesure de la couleur est un élément majeur de la relation entre le tanneur et l'acheteur de cuir. Notion ô combien subjective, elle se rationnalise depuis la mise en place de la cabine de contrôle couleur ou du spectrophotomètre. Ce dernier permet la mesure globale de la couleur, mesure moyenne sur une surface de quelques mm2. En ligne : https://drive.google.com/file/d/1dZcL0IyX5ta4Zuy3uQXw_AveQYtcu138/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=31932
in CTC ENTREPRISES > (03/2019) . - p. 14-15[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 20671 - Périodique Bibliothèque principale Documentaires Disponible 20677 - Périodique Bibliothèque principale Documentaires Disponible Effective models for correlating spectral reflectance between spectrophotometers / Yang Xu in COLORATION TECHNOLOGY, Vol. 129, N° 4 (08/2013)
[article]
Titre : Effective models for correlating spectral reflectance between spectrophotometers Type de document : texte imprimé Auteurs : Yang Xu, Auteur ; Ming Ronnier Luo, Auteur ; Pei-Li Sun, Auteur ; Changjun Li, Auteur Année de publication : 2013 Article en page(s) : p. 312–321 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Réflectance
Spectrophotomètres
Spectroscopie de réflectanceIndex. décimale : 667.3 Teinture et impression des tissus Résumé : This paper describes different models to achieve satisfactory interinstrument agreement between spectrophometers. The models investigated include the Berns and Petersen method, the modified Berns and Petersen method, the Reniff method, the Rich and Martin method and the R-model developed by Chung et al. In the paper, the Reniff method and the R-model were extended, and all the models were then evaluated using sample sets with different substrates. It was found that the extended Reniff method gave the best training performance and the worst testing performance. The Rich and Martin model, the three-term Chung model and the Berns and Petersen models, all with wavelength-dependent coefficients, gave better testing performance. DOI : 10.1111/cote.12046 En ligne : http://onlinelibrary.wiley.com/doi/10.1111/cote.12046/pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=19045
in COLORATION TECHNOLOGY > Vol. 129, N° 4 (08/2013) . - p. 312–321[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 15394 - Périodique Bibliothèque principale Documentaires Disponible Introduction aux spectrophotomètres / Hendrik Steen in L'INDUSTRIE TEXTILE, N° 1316 (01/2000)
PermalinkPermalinkSpotting the target / Mike Mills in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 193, N° 4466 (07/2003)
PermalinkStandardisation of bases using spectrophotometer / M. Veeramani in PAINTINDIA, Vol. LXIX, N° 6 (06/2019)
PermalinkTextile softeners on cotton dyed with direct dyes : reflectance and fastness assessments / Mazeyar Parvinzadeh in TENSIDE, SURFACTANTS, DETERGENTS, Vol. 45, N° 1/2008 (01-02/2008)
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