Composition and process for whitening paper

Details Composition and process for whitening paper Composition and process for whitening paper

D - Textiles, Paper

21

H

D21H 21/30 (2006.01) C07D 251/00 (2006.01) C09K 11/06 (2006.01)

Patent

CA 2726346

The invention relates to a composition suitable for surface treatment of paper, wherein the composition contains a specified fluorescent whitening agent with alkylsulfonic acid groups, a salt of a bivalent cation, and a carrier. The composition is used for whitening paper, in particular in the size press.

Linvention concerne une composition adaptée au traitement de surface du papier, la composition contenant un agent de blanchiment fluorescent spécifique comprenant des groupes dacide alkylsulfonique, un sel dun cation bivalent, et un véhicule. La composition est utilisée pour blanchir le papier, en particulier dans la presse encolleuse.

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