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SURFACE COATINGS INTERNATIONAL . Vol. 102.4Resins for anti-graffiti paints - Light booths for colour viewingMention de date : 08-09/2019 Paru le : 02/09/2019 |
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Titre : Let there be light Type de document : texte imprimé Année de publication : 2019 Article en page(s) : p. 172-175 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Diodes électroluminescentes
Eclairage
Lampes à halogène
Lumière artificielle
vision des couleursIndex. décimale : 667.9 Revêtements et enduits Résumé : Uniform colour is directly associated with high quality and influences our purchasing decisions. This is especially true for multi-component products consisting of different materials and those being produced by different suppliers. The human eye is often the final judge for approving a new design. Therefore, visual inspection conditions need to be standardised to guarantee repeatable visual results. The most important colour match is under natural daylight. The CIE (Commission Internationale de l'Éclairage) defined several standard D illuminants with D65 being the most important one. The lamps used in a light booth must simulate D65 as closely as possible. Until now, fluorescent tubes were used to simulate D65. A new unique lighting setup is now able to achieve class A quality by simulating CIE D65 with a smart combination of filtered halogen lamps and LEDs. Note de contenu : - STANDARDISATION OF VISUAL COLOUR EVALUATIONS : The observer - The object - The surroundings - The illumination - Terms for characterisation of light - Colour temperature (CT) and correlated colour temperature (CCT) - Spectral power distribution - Colour rendering index (CRI) - Metamerism index (MI)
- QUALITY MEASURES FOR SIMULATING CIE ILLUMINANTS : Definitions of light source and illuminant - Standard illuminants
- BEST-IN-CLASS DAYLIGHT WITH BYKO-SPECTRA PRO
- Fig. 1 : Planckian locus in the CIE x, y chromaticity space
- Fig. 2 : SPD curve of CIE standard illuminant 1 and illuminant A by filtered tungsten halogen
- Fig. 3 : CIE illuminants F2 and F11 and their simulation with fluorescent tubes in byko-spectra pro
- Fig. 4 : Daylight simulation with fluorescent tube
- Fig. 5 : Daylight simulation with combination of filtered halogen lamps with and withou LEDs
- Fig. 6 : The byko-spectra pro light booth
- Fig. 7 : The byko-spectra pro luminaire
- Formula 1 : Calculation of spectral power
- Formula 2 : Calculation of relative spectral power
- Formula 3 : Mathematical normalisation of a spectral power distribution curve
- Formula 4 : Calculation of the metamerism indices Mlvis and Mluv
- Table 1 : Categorisation of Mlvis and Mluv depending on colour difference formulaEn ligne : https://drive.google.com/file/d/1ErMZ056F3Ghmn84dW1KRAD5XT6tjg1bK/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=32816
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Code-barres Cote Support Localisation Section Disponibilité 21103 - Périodique Bibliothèque principale Documentaires Disponible Effective protection against graffiti and more in SURFACE COATINGS INTERNATIONAL, Vol. 102.4 (08-09/2019)
[article]
Titre : Effective protection against graffiti and more Type de document : texte imprimé Année de publication : 2019 Article en page(s) : p. 176-178 Langues : Anglais (eng) Catégories : Revêtements anti-graffitis
Revêtements protecteurs
SiliconesLes silicones, ou polysiloxanes, sont des composés inorganiques formés d'une chaine silicium-oxygène (...-Si-O-Si-O-Si-O-...) sur laquelle des groupes se fixent, sur les atomes de silicium. Certains groupes organiques peuvent être utilisés pour relier entre elles plusieurs de ces chaines (...-Si-O-...). Le type le plus courant est le poly(diméthylsiloxane) linéaire ou PDMS. Le second groupe en importance de matériaux en silicone est celui des résines de silicone, formées par des oligosiloxanes ramifiés ou en forme de cage (wiki).
VernisIndex. décimale : 667.9 Revêtements et enduits Résumé : The problem of graffiti causes immense damage to cities, communities and homeowners. Removing these aggressive spray paints is extremely costly, damages the building fabric and can lead to an entire property dropping in value. However, Wacker has developed a new, highly effective anti-graffiti product, which permanently protects surfaces with a thin film of silicone. Graffiti and stickers can be readily washed off with just cold water. Note de contenu : - Graffiti paints penetrate deeply into building fabric
- Removal can damage the building's fabric
- Silicone-based paint barrier
- Successful tests in Burghausen
- No harmful ingredients
- Colourful protective coatings possible
- Silicone film is elastic, resists UV and heat
- From temporary to permanent - an overview of key anti-graffiti technologies
- Just wipe it : a sponge and cold water suffice for cleaning
- Silicone protection lowers surface tension
- No microorganisms thanks to breathable siliconesEn ligne : https://drive.google.com/file/d/1Ud6kZeWj7_ZsO80gkESIlBGrzbk-lngs/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=32817
in SURFACE COATINGS INTERNATIONAL > Vol. 102.4 (08-09/2019) . - p. 176-178[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 21103 - Périodique Bibliothèque principale Documentaires Disponible