Additive for paper making

Details Additive for paper making Additive for paper making

D - Textiles, Paper

21

H

D21H 17/29 (2006.01) D21H 21/14 (2006.01) D21H 27/16 (2006.01)

Patent

CA 2336869

The object of the invention is an additive; for paper making by means of which the dusting tendency of paper can be reduced. The agent is based on starch, the molecular size of which has been reduced, and which has been cationized to a charge of less than 1.5 mEkv/g with a quaternary nitrogen compound. The agent is added to the fiber pulp for paper making prior to web formation.

La présente invention concerne un additif destiné au papier qui permet de réduire la tendance du papier au poussiérage. Cet agent est à base d'amidon, dont le poids moléculaire a été réduit, et rendu cationique, avec une charge inférieure 1,5 mEkv/g, à l'aide d'un composé d'azote quaternaire. Lors de la fabrication de papier, cet agent est ajouté à la pulpe de fibres avant qu'elle soit mise en forme de bande.

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