| Titre : |
Influence of particle size distribution of calcium carbonate pigments on coated paper whiteness |
| Type de document : |
texte imprimé |
| Auteurs : |
Nitin Kumar, Auteur ; Nishi Kant Bhardwaj, Auteur ; Swapan Kumar Chakrabarti, Auteur |
| Année de publication : |
2011 |
| Article en page(s) : |
p. 613-618 |
| Note générale : |
Bibliogr. |
| Langues : |
Américain (ame) |
| Catégories : |
Carbonate de calcium broyé
Carbonate de calcium précipité
Lumière -- Diffusion
Opacifiants
Papier enduit
Pigments inorganiques
Taille des particules
|
| Index. décimale : |
667.9 Revêtements et enduits |
| Résumé : |
The optical properties of pigments used for paper coating are linked to their morphology. The light scattering through coated layers depends upon the size and the size distribution of the pigments and their packing behavior. In this report the effect of particle packing of various calcium carbonate pigments on the whiteness of the final coated paper is studied. Different grades of calcium carbonate pigments of different particle size distribution and optics were used for coating applications on base papers. Base papers of different optics were also selected. The entire study was carried out at different coat weights. It was observed that the overall scattering from the coated sheet depends upon the light scattering from the base paper as well as through the coated layer. Higher light scattering through the coated layer will lower the effect of the base paper, whether it is dark or bright. So high bright and white pigments are not only the criteria for an enhancement in the optical properties of coated paper ; the particle size and size distribution should also be considered before introducing any pigment into a coating formulation. The base optics should also be chosen on the bases of the pigments’ optics and their morphology. |
| Note de contenu : |
EXPERIMENTAL : Materials - Coating color preparation - Paper coating application - Analytical techniques.
RESULTS AND DISCUSSION : Effect of pigment particle size distribution on coated paper whiteness before calendering - Effect of pigment particle size distribution on coated paper whiteness after calendering. |
| DOI : |
10.1007/s11998-011-9353-y |
| En ligne : |
https://link.springer.com/content/pdf/10.1007%2Fs11998-011-9353-y.pdf |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=12237 |
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 8, N° 5 (10/2011) . - p. 613-618
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Influence of particle size distribution of calcium carbonate pigments on coated paper whiteness in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 8, N° 5 (10/2011)
