PAPER AND CARDBOARD MANUFACTURE METHOD Russian patent published in 2006 - IPC D21F11/00 D21H21/10 D21H17/00 D21H17/68

Abstract RU 2287631 C2

FIELD: pulp-and-paper industry, in particular, manufacture of paper and cardboard.

SUBSTANCE: method involves preparing aqueous cellulose pulp; adding holding system into cellulose pulp system; draining pulp through cloth for forming of paper web; drying resultant paper web. Holding system comprises swelling clay having whiteness of at least 70.

EFFECT: increased whiteness of paper and improved filler retention capability.

16 cl, 1 tbl, 20 ex

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RU 2 287 631 C2

Authors

Chehn' Gordon Chehn I.

Uill'Jams Stefanija Kejn

Dates

2006-11-20—Published

2002-06-18—Filed