Global Patent Index - EP 3385444 B1

EP 3385444 B1 20190424 - PRODUCTION OF PAPER THAT IS HIGHLY STRETCHABLE IN THE CROSS DIRECTION

Title (en)

PRODUCTION OF PAPER THAT IS HIGHLY STRETCHABLE IN THE CROSS DIRECTION

Title (de)

HERSTELLUNG VON STARK IN QUERRICHTUNG DEHNBAREM PAPIER

Title (fr)

PRODUCTION DE PAPIER HAUTEMENT ÉTIRABLE DANS LA DIRECTION TRANSVERSALE

Publication

EP 3385444 B1 20190424 (EN)

Application

EP 17165149 A 20170406

Priority

EP 17165149 A 20170406

Abstract (en)

[origin: EP3385444A1] There is provided a method of producing a paper having a grammage according to ISO 536 of 50-250 g/m 2 , a Gurley value according to ISO 5636-5 of above 15 s and a stretchability according to ISO 1924-3 in the cross direction of at least 8 %, said method comprising the steps of: a) providing a pulp, preferably sulphate pulp; b) subjecting the pulp to refining; c) diluting the pulp from step b) and discharging the diluted pulp at a discharge rate to a forming wire to form a paper web, wherein the speed of the forming wire is at least 7 m/min higher or at least 7 m/min lower than the discharge rate; d) pressing the paper web from step c); e) drying the paper web from step d), which drying comprises a step of compacting the paper web in a Clupak unit.

IPC 8 full level

D21H 25/00 (2006.01); D21F 5/00 (2006.01); D21H 11/04 (2006.01); D21H 27/00 (2006.01); D21H 27/10 (2006.01)

CPC (source: EP US)

D21C 9/007 (2013.01 - EP); D21D 1/20 (2013.01 - EP US); D21F 5/028 (2013.01 - US); D21F 9/02 (2013.01 - US); D21F 11/00 (2013.01 - EP); D21H 11/04 (2013.01 - EP US); D21H 25/005 (2013.01 - EP); D21H 27/00 (2013.01 - EP); D21H 27/10 (2013.01 - EP)

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

DOCDB simple family (publication)

EP 3385444 A1 20181010; EP 3385444 B1 20190424; AU 2018247907 A1 20190314; AU 2018247907 B2 20220908; BR 112019016606 A2 20200331; BR 112019016606 B1 20231121; CA 3048098 A1 20181011; CN 110291250 A 20190927; EP 3607142 A1 20200212; EP 3607142 B1 20231004; FI 3607142 T3 20231228; PL 3385444 T3 20200131; PL 3607142 T3 20240402; RU 2019122383 A 20210506; RU 2019122383 A3 20210618; US 2020181842 A1 20200611; WO 2018185213 A1 20181011

DOCDB simple family (application)

EP 17165149 A 20170406; AU 2018247907 A 20180405; BR 112019016606 A 20180405; CA 3048098 A 20180405; CN 201880009917 A 20180405; EP 18717000 A 20180405; EP 2018058713 W 20180405; FI 18717000 T 20180405; PL 17165149 T 20170406; PL 18717000 T 20180405; RU 2019122383 A 20180405; US 201816500318 A 20180405