METHOD OF MANUFACTURING PRINTING PAPER Russian patent published in 1999 - IPC

Abstract RU 2132425 C1

FIELD: pulp-and-paper industry. SUBSTANCE: filler, bleaching agent or dye, sizing agent, and flocculant are added to pulp. Resultant suspension is laid onto grid part of papermaking machine to remove water. Distinguishing feature of invention is using high-molecular poly- trimethacryloyl(hydroxyethyl)ammonium methyl sulfate in quantity 0.011- 0.012% based on weight of absolutely dry fiber. Method is appropriate in production of offset printing paper and news(print) paper. EFFECT: increased degree of retention of fillers and fine fibers, accelerated dehydration of pulp, and improved strength characteristics of paper. 1 dwg, 8 tbl, 3 ex

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RU 2 132 425 C1

Authors

Erin N.Ju.

Sjutkin V.N.

Kotova V.I.

Popov V.M.

Ponarin E.F.

Najdis F.B.

Dates

1999-06-27—Published

1997-04-10—Filed