Offset printing paper

Details Offset printing paper Offset printing paper

D - Textiles, Paper

21

H

D21H 25/06 (2006.01) B41F 7/02 (2006.01) D21H 21/16 (2006.01) D21H 17/28 (2006.01) D21H 17/35 (2006.01) D21H 17/43 (2006.01)

Patent

CA 2357949

A surface-treating agent mainly includes three constituents: a water-soluble polymer; a surface sizing agent which is a copolymer of a styrene type monomer and an anionic monomer and which mainly includes a water-soluble copolymer containing 20 to 80 weight % of the styrene type monomer; and a surface sizing agent which is a copolymer of an olefin type monomer and an anionic monomer and which mainly includes a water-soluble copolymer containing 20 to 80 weight % of the olefin type monomer. The surface-treating agent is coated and dried on a base paper for offset printing.

L'invention concerne un agent de traitement de surface qui comprend principalement trois éléments : un polymère hydrosoluble; un agent de collage en surface qui est un polymère d'un monomère de type styrène et un monomère anionique et qui est principalement constitué d'un copolymère hydrosoluble comprenant entre 20 et 80 % d'équivalent en poids de monomère de type styrène; et un agent de collage en surface qui est un copolymère d'un monomère de type oléfine et d'un monomère anionique et qui est principalement constitué d'un copolymère hydrosoluble comprenant entre 20 et 80 % d'équivalent en poids de monomère de type oléfine. L'agent de traitement de surface est revêtu et séché sur du papiper de base pour une impression offset.

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