EP 3585940 A1 20200101 - METHOD AND DEVICE FOR THE PRODUCTION OF A FIBROUS MATERIAL WEB IN A PAPERMAKING MACHINE
Title (en)
METHOD AND DEVICE FOR THE PRODUCTION OF A FIBROUS MATERIAL WEB IN A PAPERMAKING MACHINE
Title (de)
VERFAHREN UND VORRICHTUNG ZUR HERSTELLUNG EINER FASERSTOFFBAHN IN EINER PAPIERMASCHINE
Title (fr)
PROCÉDÉ ET DISPOSITIF POUR PRODUIRE UNE BANDE DE MATIÈRE FIBREUSE DANS UNE MACHINE À PAPIER
Publication
Application
Priority
- DE 102017103847 A 20170224
- EP 2018051043 W 20180117
Abstract (en)
[origin: WO2018153576A1] The invention relates to a device and method for producing a fiber mat (1) which is particularly suitable for use in the production of packaging paperboard or fibrous material-containing construction elements from a fibrous material-containing starting material. Said method comprises the following steps: a) providing the fibrous material-containing starting material (13); b) processing, using only little water, the fibrous material-containing starting material (13) in an air current to stock comprising individual fibers and/or fiber bundles; c) forming the individual fibers and/or fiber bundles by a dry forming process in an air current to a fiber mat (1) by way of a dry forming process; such that the fiber mater forms a three-dimensional structure; d) solidifying the formed fiber mat (1); the specific volume of the fiber mat (1) being higher than 1.6 cm3/g, particularly higher than 2 cm3/g, preferably higher than 3 cm3/g and the fiber mat thickness being ≥ 1 mm, particularly ≥ 1.5 mm, preferably ≥ 2 mm.
IPC 8 full level
D21F 9/00 (2006.01); B27N 3/00 (2006.01); B32B 3/00 (2006.01); D04H 1/26 (2012.01); D21F 11/12 (2006.01)
CPC (source: EP US)
B27N 3/12 (2013.01 - EP US); B27N 5/00 (2013.01 - US); B27N 5/02 (2013.01 - US); B32B 5/26 (2013.01 - EP); B32B 7/12 (2013.01 - EP); B32B 29/02 (2013.01 - EP); D04H 1/26 (2013.01 - US); D04H 1/425 (2013.01 - EP US); D04H 1/732 (2013.01 - EP US); D21F 9/00 (2013.01 - EP US); D21F 11/02 (2013.01 - US); D21F 11/12 (2013.01 - EP US); B32B 3/28 (2013.01 - US); B32B 2250/40 (2013.01 - EP); B32B 2260/021 (2013.01 - EP); B32B 2260/04 (2013.01 - EP); B32B 2307/718 (2013.01 - EP); B32B 2307/732 (2013.01 - EP); B32B 2553/00 (2013.01 - EP)
Citation (search report)
See references of WO 2018153576A1
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
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
WO 2018153576 A1 20180830; CN 110088396 A 20190802; DE 102017103847 A1 20180830; EP 3585940 A1 20200101; US 11261567 B2 20220301; US 2019352851 A1 20191121
DOCDB simple family (application)
EP 2018051043 W 20180117; CN 201880005192 A 20180117; DE 102017103847 A 20170224; EP 18700752 A 20180117; US 201816476158 A 20180117