METHOD OF PAPER MASS PREPARING Russian patent published in 1995 - IPC

Abstract RU 2026914 C1

FIELD: paper industry. SUBSTANCE: method involves addition of polydimethyldiallylammonium chloride which is treated preliminary with acid agent, preferably, aluminium sulfate or sulfuric acid, or hydrochloric acid up to pH value of prepared mixture at the range 0-4 to the suspension of fibrous semifinished product on the basis of unbleached sulfate cellulose. Invention ensures to reach stable increase of antimicrobial activity, increase rupture strength at transverse direction and decrease absorption of paper and cardboard. EFFECT: improved method of paper mass preparing. 2 cl, 1 tbl

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RU 2 026 914 C1

Authors

Dikler Ja.E.

Olejnik A.T.

Zajats Ju.N.

Kut'Ev N.P.

Dates

1995-01-20—Published

1994-01-13—Filed