SILICA-CONTAINING COATING COMPOSITION FOR PRINTING SUBSTRATE

The invention relates to a method for manufacturing a coating composition for a printing substrate. Method comprises mixing together colloidal silica particles, and an aqueous dispersion of a synthetic polymer and/or polyaluminium chloride, as well as a binder solution. The obtained mixture is used...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	PUTTONEN, SAMI, HUHTALA, KIMMO, HEMMES, JAN-LUIKEN, VIRTALA, KAI
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	ADHESIVES CHEMICAL PAINT OR INK REMOVERS CHEMISTRY COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS COLOUR PRINTING CORRECTING FLUIDS DYES FILLING PASTES IMPREGNATING OR COATING OF PAPER INKS LINING MACHINES METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS PAINTS PAPER NOT OTHERWISE PROVIDED FOR PAPER-MAKING PASTES OR SOLIDS FOR COLOURING OR PRINTING PERFORMING OPERATIONS POLISHES PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D PRINTING PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES PRODUCTION OF CELLULOSE PULP COMPOSITIONS STAMPS TEXTILES TRANSPORTING TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G TYPEWRITERS USE OF MATERIALS THEREFOR WOODSTAINS
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Beschreibung
Zusammenfassung:	The invention relates to a method for manufacturing a coating composition for a printing substrate. Method comprises mixing together colloidal silica particles, and an aqueous dispersion of a synthetic polymer and/or polyaluminium chloride, as well as a binder solution. The obtained mixture is used for forming a coating composition to be applied on the printing substrate comprising lignocellulosic fibres. The invention also relates to a coating composition comprising binder and a dispersed cationic component derived from synthetic polymer and colloidal silica particles. L'invention concerne un procédé de fabrication de composition de revêtement pour substrat d'impression. Le procédé consiste à mélanger ensemble des particules de silice colloïdales et une dispersion aqueuse de polymère synthétique et/ou de chlorure de polyaluminium ainsi qu'une solution de liant. Le mélange obtenu est utilisé pour former une composition de revêtement à appliquer sur le substrat d'impression comprenant des fibres ligno-cellulosiques. L'invention concerne également une composition de revêtement comprenant un liant et un composant cationique dispersé dérivé d'un polymère synthétique et des particules de silice colloïdales.