EP 0900295 B1 20000531 - Process for manufacturing a non-woven by hydrodynamic needling
Title (en)
Process for manufacturing a non-woven by hydrodynamic needling
Title (de)
Verfahren zur Herstellung eines Vlieses hydrodynamischer Vernadelung
Title (fr)
Procédé pour fabriquer un non-tissé par aiguilletage hydrodynamique
Publication
Application
Priority
- DE 19620503 A 19960522
- EP 9603130 W 19960717
Abstract (en)
[origin: DE19620503A1] The manufacture of non-woven fabrics from a polyvinyl alcohol (PVA) fibre is known. The particular advantage of said PVA fibre is the property thereof of being soluble in water. To bond the non-woven fabric, it is therefore needled mechanically. The invention relates to a process which also uses hydrodynamic needling. Particular parameters for further treatment during water needling, and during subsequent drying characterise the supplementary features of the invention.
IPC 1-7
IPC 8 full level
D04H 1/46 (2006.01); D04H 1/492 (2012.01)
CPC (source: EP US)
D04H 1/492 (2013.01 - EP US); D04H 18/04 (2013.01 - EP US); Y10T 442/689 (2015.04 - EP US)
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
DE 19620503 A1 19971127; CN 1119446 C 20030827; CN 1191582 A 19980826; DE 59605371 D1 20000706; EP 0900295 A1 19990310; EP 0900295 B1 20000531; US 6112385 A 20000905; WO 9744512 A1 19971127
DOCDB simple family (application)
DE 19620503 A 19960522; CN 96195762 A 19960717; DE 59605371 T 19960717; EP 9603130 W 19960717; EP 96927024 A 19960717; US 98348298 A 19980122