| Titre : |
Sophisticated colour matching made easy : A new method to characterise interference pigments |
| Type de document : |
texte imprimé |
| Auteurs : |
Werner Rudolf Cramer, Auteur |
| Année de publication : |
2019 |
| Article en page(s) : |
p. 30-36 |
| Langues : |
Anglais (eng) |
| Catégories : |
Pigments à effets spéciaux
Pigments interférentiels
|
| Index. décimale : |
667.9 Revêtements et enduits |
| Résumé : |
Interference pigments are used in many automotive and industrial paint formulations to create a wealth of attractive effects. While manufacturers naturally focus on developing new visual experiences, it is also important to ensure instrumentation and test methods are similarly advanced. A new method identifies interference pigments rapidly and accurately, which benefits refinishing operations and OEMs as they seek to reproduce these colours. |
| Note de contenu : |
- Combined geometry offers insights
- Interference line reflects the optical properties
- Narrowing down the range for easier identification
- Experimental
- Pearl red
- Pearl blue
- Stellar green
- New method simplifies colour reproduction
- Table 1 : The values s1 to s6 characterise the interference pigments with colour-like pigments being easier to distinguish*
- Fig. 1 : Selection of geometries (illumination and observation) to define the interference line
- Fig. 2 : Two different formulations show different rections of the interference lines. Both aspecular lines are similar
- Fig. 3 : Typical interference lines of blends with white and colour interference pigments
- Fig. 4 : The chart shows the colour shift of different green pigments
- Fig. 5 : The measured value of the geometry 45/as 15° is selected as the zero point of a coordinate systemand is used to calculate the parameters s1 to s6
- Fig. 6 : Typical presentation of two green interference pigments. They differ strongly in the length of the interference line and the angle between their parts
- Fig. 7 : The values s1 to s6 are calculated by the angles between the sub-lines and their lengths |
| En ligne : |
https://drive.google.com/file/d/1rmhScBRgAFgV4E2M06i15fuooUliJ5sA/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=33354 |
in EUROPEAN COATINGS JOURNAL (ECJ) > N° 12 (12/2019) . - p. 30-36
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Sophisticated colour matching made easy in EUROPEAN COATINGS JOURNAL (ECJ), N° 12 (12/2019)
