HIGH-STRENGTH FLUTING MADE OF PULSES OF PULP Russian patent published in 2020 - IPC D21F3/02

Abstract RU 2728404 C2

FIELD: manufacturing technology.

SUBSTANCE: present invention discloses a method of producing container board, comprising a step of molding a web obtained from a cellulose pulp, comprising a NSSC mass, in a press with an expanded pressing zone, such as shoe press, wherein linear load in press with expanded pressing zone is more than 1200 kN/m. In addition, the present invention provides corrugated cardboard comprising a liner (flat layer) and fluting, wherein fluting is obtained from a cellulose pulp, comprising a NSSC mass, fluting density is more than 725 kg/m³ and geometric SCT index (ISO 9895) fluting is greater than 37 Nm/g.

EFFECT: high-strength fluting made of NSSC mass is proposed.

7 cl, 11 dwg, 2 tbl

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RU 2 728 404 C2

Authors

Nordstrem, Fredrik

Dates

2020-07-29—Published

2015-11-20—Filed