Fast dry coated inkjet paper

Details Fast dry coated inkjet paper Fast dry coated inkjet paper

D - Textiles, Paper

21

H

D21H 19/38 (2006.01) B41M 5/50 (2006.01)

Patent

CA 2726253

Disclosed are a coating composition, coated article, and a method for treating one or more sides of the printable web with the composition, for providing improved printing ink dry time and gloss. The coating composition comprises: a calcium carbonate pigment component comprising a mixture high and low surface area calcium carbonate pigment; a metal salt drying agent; and a cationic dye fixing agent; a pigment binder; optionally a plastic pigment; and optionally an optical brightener; and which provides; a solids content of at least about 25%; a ratio of high to low surface area calcium carbonate in the range of from about 0.5: 1 to about 20: 1; and a ratio of calcium carbonate pigment component to pigment binder in the range of from about 4: 1 to about 50: 1.

Linvention concerne une composition de couchage, un article couché, et un procédé de traitement dun ou de plusieurs côtés de la bande imprimable avec la composition, afin daméliorer le temps de séchage et le brillant de lencre dimpression. La composition de couchage comprend : un composant pigment de carbonate de calcium comprenant un mélange de pigments carbonate de calcium à grande et faible superficie; un agent de séchage à sel métallique; et un agent de fixage du colorant cationique; un liant pigmentaire; éventuellement un apprêt pigmentaire plastique; et éventuellement un agent de blanchiment optique; et fournissant une teneur en solide dau moins environ 25 %; un rapport entre le carbonate de calcium de grande superficie et le carbonate de calcium de faible superficie dans la plage denviron 0,5:1 à environ 20:1; et un rapport entre le composant de pigment de carbonate de calcium et le liant pigmentaire dans la plage allant denviron 4:1 à environ 50:1.

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