Method for improving printability on paper or paper products...

Details Method for improving printability on paper or paper products... Method for improving printability on paper or paper products...

B - Operations, Transporting

41

M

B41M 5/00 (2006.01)

Patent

CA 2523320

The invention relates to a method for improving printability on paper or paper products with the aid of an ink-jet printing method. Said method consists in treating paper or paper products by aqueous solutions containing cationic polymers whose charge density is equal or higher than 3 mVal/g and which are used as a sole treating agent in the aqueous solution. The cationic polymer is applied to a paper or paper product surface, whereby the quantity thereof ranges from 0.05 to 5.0 g/m 2. The use of said cationic polymers in order to improve the printability by ink-jet printing on paper or paper products is also disclosed.

L'invention concerne un procédé pour améliorer le travail d'impression sur du papier et de produits en papier lors d'impressions, à l'aide d'un procédé d'impression à jet d'encre. Le procédé comprend le traitement du papier ou des produits en papier au moyen de solutions aqueuses contenant des polymères cationiques présentant une densité de charge d'au moins 3 mVal/g, utilisés en tant qu'agent de traitement unique dans la solution aqueuse. Le polymère cationique est appliqué à la surface du papier ou des produits en papier dans une quantité comprise entre 0,05 et 5g/m?2¿. L'invention concerne également l'utilisation desdits polymères cationiques pour améliorer le travail d'impression à jet d'encre sur du papier ou des produits en papier.

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