Latex paper sizing composition

Details Latex paper sizing composition Latex paper sizing composition

D - Textiles, Paper

21

H

D21H 21/16 (2006.01) D21H 17/14 (2006.01) D21H 17/28 (2006.01) D21H 17/43 (2006.01) G03G 7/00 (2006.01) D21H 17/16 (2006.01) D21H 17/37 (2006.01) D21H 21/52 (2006.01)

Patent

CA 2501823

Methods of sizing paper using a latex as a surface sizing agent are described, in which the latex is defined by acid number or particle size. Further described are methods of improving toner adhesion of papers that are surface sized with alkenylsuccinic anhydrides by employing latexes that have a glass transition temperature of from about 25 to about 65. Still further described are low shear methods of dispersing alkenylsuccinic anhydrides in sizing compositions using latexes as dispersing aids.

L'invention concerne des procédés de collage de papier utilisant un latex comme agent de collage de surfaces, dans lesquelles le latex est défini par l'indice d'affinité ou la grosseur de particules. L'invention concerne également un procédé d'amélioration de l'adhésion du toner de papiers collés en surface par des anhydrides alcényle succiniques par l'emploi de latex ayant une température de transition vitreuse allant d'environ 25 à environ 65. L'invention concerne également des procédés de dispersion à faible cisaillement d'anhydrides alcényle succiniques dans des compositions de collage utilisant des latex comme auxiliaires de dispersion.

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