EP 0520911 A1 19921230 - Method of producing a non-woven semi-finished product, and product obtained thereby.
Title (en)
Method of producing a non-woven semi-finished product, and product obtained thereby.
Title (de)
Verfahren zur Herstellung eines Vliesstoff-Halbzeugs und Vliesstoff-Rohlings.
Title (fr)
Procédé pour réaliser un produit non-tissé semi-fini et produit non-tissé semi-fini.
Publication
Application
Priority
FR 9108049 A 19910628
Abstract (en)
A lap is produced in a spreader/lapper (2) by successively folding a fibre web coming from a card (1), and then the lap is drawn in a tenter (4). The tenter (4) used is equipped with rotary means having, on their periphery, a covering comprising spikes which penetrate deep into the lap. The degree of drawing is regulated in such a way that the fibres in the drawn product are mainly distributed in two orientations substantially symmetrical relative to the longitudinal direction of the drawn product and forming an angle of between 30 DEG and 60 DEG with said longitudinal direction. The invention is used particularly in order to improve the mechanical stability of lapped products. <IMAGE>
IPC 1-7
IPC 8 full level
D01G 25/00 (2006.01); D04H 1/70 (2012.01); D04H 1/74 (2006.01)
CPC (source: EP US)
D01G 25/00 (2013.01 - EP US); D04H 1/74 (2013.01 - EP US); Y10T 428/24124 (2015.01 - EP US); Y10T 428/24132 (2015.01 - EP US)
Citation (search report)
- [XD] FR 2649130 A1 19910104 - SOMMER SA [FR]
- [YD] EP 0129516 A1 19841227 - GRAZIANO & C FOND OFF RIUNITE [IT]
- [A] DE 1278304 B 19680919 - JOHNSON & JOHNSON
- [A] GB 2138456 A 19841024 - TEXTIMA VEB K
Designated contracting state (EPC)
AT BE DE ES FR GB IT
DOCDB simple family (publication)
EP 0520911 A1 19921230; FR 2678288 A1 19921231; FR 2678288 B1 19941118; JP H06503862 A 19940428; US 5476703 A 19951219; WO 9300464 A1 19930107
DOCDB simple family (application)
EP 92401823 A 19920626; FR 9108049 A 19910628; FR 9200602 W 19920626; JP 50137893 A 19920626; US 97740093 A 19930301