HYPERPLATY CLAYS AND THEIR USE IN PAPER COATING AND FILLING, METHODS FOR MAKING SAME, AND PAPER PRODUCTS HAVING IMPROVED BRIGHTNESS

The present invention relates to a hydrous kaolin product having improved optical properties, for example, when used in the production of paper products. The present invention comprises an improved barrier coating for paper and a method of making the coated paper. The present invention also comprise...

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Bibliographische Detailangaben
Hauptverfasser:	CUMMINGS, DAVID O, WESLEY, ROBIN, PRUETT, ROBERT J, GARSKA, MICHAEL J, BILIMORIA, BOMI M, JONES, PHILIP J. E, YUAN, JUN
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	ADHESIVES CHEMICAL PAINT OR INK REMOVERS CHEMISTRY COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS CORRECTING FLUIDS DYES FILLING PASTES IMPREGNATING OR COATING OF PAPER INKS METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS PAINTS PAPER NOT OTHERWISE PROVIDED FOR PAPER-MAKING PASTES OR SOLIDS FOR COLOURING OR PRINTING POLISHES PREPARATION OF CARBON BLACK PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D PRODUCTION OF CELLULOSE PULP COMPOSITIONS TEXTILES TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS,TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES USE OF MATERIALS THEREFOR WOODSTAINS
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Beschreibung
Zusammenfassung:	The present invention relates to a hydrous kaolin product having improved optical properties, for example, when used in the production of paper products. The present invention comprises an improved barrier coating for paper and a method of making the coated paper. The present invention also comprises an improved method from making filled and coated paper products. The present invention uses a composition comprising kaolin having a shape factor of at least about 70:1, such as at least about 80:1 or at least about 100:1. L'invention concerne un produit à base de kaolin hydraté possédant des propriétés optiques améliorées, par exemple, lorsqu'il est utilisé dans la production de produits de papier. Cette invention comprend un revêtement barrière amélioré destiné au papier et un procédé de fabrication de ce papier revêtu. L'invention concerne également un procédé amélioré destiné à fabriquer des produits de papier chargés et revêtus. Cette invention utilise une composition contenant du kaolin possédant un facteur de forme d'au moins environ 70:1, de préférence d'au moins 80:1 ou idéalement d'au moins environ 100:1.