METHOD OF PRODUCTION OF CELLULOSE PRODUCT Russian patent published in 2013 - IPC D21H21/20 D21H17/68 

FIELD: textiles, paper.

SUBSTANCE: method includes providing a fiber-containing suspension, in which at least about 60% wt. fibers are cellulosic fibers, and dewatering the suspension on a wire mesh to form the cellulosic fibrous canvas. The method additionally comprises adding particles comprising silica and a reinforcing in the wet state agent in the moulded canvas. The present invention also relates to a product obtained by this method. The invention furthermore relates to an aqueous dispersion having a pH in the range from 2 to 7 and containing particles containing silica and the reinforcing in the wet state agent. Another aspect of the invention relates to the use of the dispersion as an additive in the papermaking process.

EFFECT: increasing strength and stiffness of the paper in the wet state.

17 cl, 3 ex, 6 tbl