Binder and coating slip for coating base paper in inkjet...

Details Binder and coating slip for coating base paper in inkjet... Binder and coating slip for coating base paper in inkjet...

B - Operations, Transporting

41

M

B41M 5/00 (2006.01) C09D 189/06 (2006.01) D21H 19/36 (2006.01)

Patent

CA 2562963

The aim of said invention is to obtain a binder for a coating paint used for producing a low-cost and good quality inkjet paper providing with the inkjet colours of relatively high colour densities, thereby substituting in many cases highvalued and expensive qualities of inkjet-photopaper. For this purpose, said invention is characterised in that the inventive binder comprises gelatine in the form of the first component thereof, fractions of at least one type of another binder component selected from vinylalcohol polymers and copolymers, carbohydrates and the derivatives thereof, wherein the gelatine solid content in the binder is greater than the sum of solid content of the other binder component(s).

L'invention vise à obtenir un liant pour sauces de couchage destinées à fabriquer des papiers pour jet d'encre d'un coût avantageux et de bonne qualité, présentant, avec des couleurs de jets d'encre, des densités d'encre relativement élevées, et pouvant de ce fait, remplacer dans un grand nombre de cas, les qualités à haute valeur et à prix élevés, des papiers photographiques pour jet d'encre. A cet effet, l'invention est caractérisée en ce que le liant comprend de la gélatine comme premier composant du liant, des fractions d'au moins un autre composant de liant sélectionné parmi des polymères et des copolymères de vinylalcool, et des hydrates de carbone et leurs dérivés, et en ce que la fraction de matières solides de la gélatine dans le liant est plus grande que la somme des fractions de matières solides du/ou des autres composants du liant.

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