EP 1699960 A1 20060913 - PROCESS FOR REINFORCING A HYDRO-ENTANGLED PULP FIBRE MATERIAL, AND HYDRO-ENTANGLED PULP FIBRE MATERIAL REINFORCED BY THE PROCESS
Title (en)
PROCESS FOR REINFORCING A HYDRO-ENTANGLED PULP FIBRE MATERIAL, AND HYDRO-ENTANGLED PULP FIBRE MATERIAL REINFORCED BY THE PROCESS
Title (de)
VERFAHREN ZUR VERSTÄRKUNG EINES WASSERSTRAHLVERWIRBELTEN PULPFASERMATERIALS UND SO VERSTÄRKTES WASSERSTRAHLVERWIRBELTES PULPFASERMATERIAL
Title (fr)
PROCEDE DE RENFORCEMENT DE MATIERE FIBREUSE DE PATE A PAPIER HYDRO-ENCHEVETREE ET MATIERE FIBREUSE DE PATE A PAPIER HYDRO-ENCHEVETREE RENFORCEE PAR LE PROCEDE
Publication
Application
Priority
- SE 2004001705 W 20041123
- SE 0303509 A 20031222
Abstract (en)
[origin: WO2005061772A1] A process for reinforcing a hydro-entangled pulp fibre material, wherein pulp fibres, including pulp fines, and water are mixed in order form a fibre suspension which is dewatered in order to form a precursor fibre web which is hydro-entangled at a maximum water-jet pressure higher than 85 bar and then dried. Reinforcement fibres, having a fibre length above 5 mm, are introduced into the process and a small amount from about 0.5 to about 10 g/m2 dry solids of a copolymer dispersion is applied as a substantially continuous coating onto the precursor web being in a wet state enabling the copolymer dispersion to migrate in a z-direction in order to become uniformly distributed throughout the web after the drying, resulting in a reinforced fibre network capable of binding and retaining a majority of the pulp fibres and any remaining fines within the material while maintaining a low material stiffness.
IPC 8 full level
D04H 1/48 (2006.01); D06M 15/263 (2006.01); D21H 15/06 (2006.01); D21H 23/28 (2006.01); D21H 25/02 (2006.01); D21H 19/20 (2006.01); D21H 19/58 (2006.01)
CPC (source: EP)
D21H 23/28 (2013.01); D21H 25/02 (2013.01); D21H 15/06 (2013.01); D21H 19/20 (2013.01)
Citation (search report)
See references of WO 2005061772A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LU MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2005061772 A1 20050707; BR PI0417441 A 20061031; EP 1699960 A1 20060913; SE 0303509 D0 20031222
DOCDB simple family (application)
SE 2004001705 W 20041123; BR PI0417441 A 20041123; EP 04820695 A 20041123; SE 0303509 A 20031222