EP 0937803 A1 19990825 - Method and process for fibrillating a web of textile by projecting a liquid under high pressure
Title (en)
Method and process for fibrillating a web of textile by projecting a liquid under high pressure
Title (de)
Verfahren und Vorrichtung zum Fibrillieren eines bahnförmigen Textilflächengebildes durch Beaufschlagen mit einer Hochdruckflüssigkeit
Title (fr)
Méthode et procédé de fibrillation d'une nappe textile par projection d'un liquide sous haute pression
Publication
Application
Priority
EP 98810147 A 19980224
Abstract (en)
To break down continuous textile materials (3) into fibers, they are subjected to high pressure fluid streams as a continuous fluid curtain (14) over the whole width of the material and at least on one side, delivered by a wide slit jet (6). The fluid is delivered by the wide slit jet (6) at a pressure of 25-70 bar. At the fluid beating station (4), where the pressure fluid jet stream strikes the fabric (3), the material is supported by a smooth and impermeable surface pref. as a rotating roller (1). The fluid enters the jet (6) through connections on both sides, impelled by a recirculating pump. The gap between the jet (6) and the material (3) is not more than 20 mm and preferably not more than 8 mm. The fluid is pref. water, with additives especially to swell cellulose and other natural material fibers and mixed with air. The water jet stream strikes the fabric (3) at an angle ( alpha ) of 40-150 degrees and pref. 60-120 degrees . An Independent claim is included for an apparatus with a wide slit jet (6) to form a continuous fluid curtain (14) on the running textile material (3).
Abstract (de)
Zum Fibrillieren eines kontinuierlich geförderten Textilflächengebildes (3) wird eine Flüssigkeit unter Hochdruck durch eine Breitschlitzdüse (6) als durchgehender Flüssigkeitsvorhang (14) auf das Flächengebilde (3) abgegeben. Mit dieser schonenden Art des Fibrillierens können alle Arten von Geweben fibrilliert werden, insbesondere auch leichte Stoffe. Die Breitschlitzdüse (6) ist einfach und kostengünstig herstellbar. <IMAGE>
IPC 1-7
D04H 1/46; D04H 13/02; D06B 3/28; D06C 19/00; D06C 29/00; B05B 1/04
IPC 8 full level
B05B 1/04 (2006.01); B05C 5/02 (2006.01); D04H 1/46 (2006.01); D04H 5/02 (2006.01); D04H 13/02 (2006.01); D04H 18/04 (2012.01); D06B 3/28 (2006.01); D06C 19/00 (2006.01); D06C 29/00 (2006.01)
CPC (source: EP US)
B05C 5/0254 (2013.01 - EP US); D04H 18/04 (2013.01 - EP US); D06C 19/00 (2013.01 - EP US); D06C 29/00 (2013.01 - EP US)
Citation (search report)
- [X] US 4152480 A 19790501 - ADACHI KIYOSHI [JP], et al
- [YD] WO 9719213 A1 19970529 - INT PAPER CO [US]
- [Y] US 4085485 A 19780425 - BRANDON RALPH E, et al
- [A] FR 2601970 A1 19880129 - VUILLAUME ANDRE [FR]
- [A] DATABASE WPI Section PQ Week 8903, Derwent World Patents Index; Class P42, AN 89-021814, XP002072622
Designated contracting state (EPC)
AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
EP 0937803 A1 19990825; AU 3140699 A 19990915; EP 1058746 A1 20001213; US 6295706 B1 20011002; WO 9943881 A1 19990902
DOCDB simple family (application)
EP 98810147 A 19980224; AU 3140699 A 19990211; EP 9900884 W 19990211; EP 99913155 A 19990211; US 62205100 A 20001114