METHOD FOR PROCESSING OF CELLULOSE FIBER Russian patent published in 2008 - IPC D21C9/10 D21C9/14 D21H21/20 D21H17/25 

Abstract RU 2341603 C1

FIELD: paper; chemistry.

SUBSTANCE: method of cellulose fiber modification is realised in the following manner. Suspension mass of cellulose fibers is prepared. In process of its bleaching cellulose derivative is added in at least one stage of acid bleaching. pH of suspension mass is in the interval from approximately 1 to approximately 4, and temperature - in interval from approximately 30 to approximately 95°C. As cellulose derivative carboxy-alkyl-cellulose is used, for instance, carboxy-methyl-cellulose. From this suspension of bleached fiber mass paper is produced by means of dehydration of this suspension on the mesh with formation of paper.

EFFECT: higher strength in wet condition and softness of paper.

42 cl, 2 dwg, 1 ex

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RU 2 341 603 C1

Authors

Greskik Tomas Kristofer

Nordin Jan

Baltsen Khans-Oke

Dates

2008-12-20Published

2005-09-28Filed