Use of acrylamide copolymer to reduce stickies deposits

Details Use of acrylamide copolymer to reduce stickies deposits Use of acrylamide copolymer to reduce stickies deposits

D - Textiles, Paper

21

H

D21H 21/02 (2006.01)

Patent

CA 2409163

A process for controlling/reducing the deposition of stickies from paper stock suspensions in papermaking involving the steps of: (a) providing a paper stock suspension containing stickies; and (b) contacting the stickies in the paper stock suspension with a copolymer of about 75-95 wt % acrylamide and about 5- 25 wt % vinyl acetate.

L'invention concerne un procédé destiné à limiter/réduire le dépôt d'impuretés collantes provenant de suspensions de pâte à papier dans la fabrication du papier. Ce procédé consiste (a) à obtenir une suspension de pâte à papier contenant des impuretés collantes, et (b) à mettre les impuretés collantes de la suspension de pâte à papier en contact avec un copolymère contenant environ 75-95 % en poids d'acrylamide et environ 5-25 % en poids d'acétate de vinyle.

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