METHOD OF MANUFACTURING LAYERED PAPER FOR MAIN LAYERS OF DECORATIVE PAPER-LAMINATE PLASTIC Russian patent published in 1998 - IPC

Abstract RU 2101410 C1

FIELD: pulp-and-paper industry. SUBSTANCE: original fibrous semiproduct, in particular, substrate containing unbleached sulfate pine-wood pulp with swelling index 140-150%, is ground and, from ground mass, suspension for different layers of paper web is prepared. Further, to suspension for formation of individual layers with mass constituting 50-100% on total mass of individual layers, polyamine/amido/epichlorohydrin resin is added in amount 0.02- 0.14% on mass of absolutely dry fibers of each individual layer. Formed individual layers are joined and thus obtained layered paper is pressed and dried. EFFECT: improved procedure. 2 cl, 3 tbl

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RU 2 101 410 C1

Authors

Akim Eh.L.

Stebunova T.A.

Kovalenko M.V.

Plotkin L.G.

Sushkov S.N.

Dates

1998-01-10Published

1996-09-27Filed