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1. WO2014170637 - METHOD AND APPARATUS FOR ALIGNING DISCONTINUOUS FIBRES

Publication Number WO/2014/170637
Publication Date 23.10.2014
International Application No. PCT/GB2014/051053
International Filing Date 04.04.2014
IPC
D04H 1/74 2006.01
DTEXTILES; PAPER
04BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
HMAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING
1Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
70characterised by the method of forming fleeces or layers, e.g. reorientation of fibres
74the fibres being orientated, e.g. in parallel
CPC
D04H 1/74
DTEXTILES; PAPER
04BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
HMAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL
1Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
70characterised by the method of forming fleeces or layers, e.g. reorientation of fibres
74the fibres being orientated, e.g. in parallel ; (anisotropic fleeces)
Applicants
  • THE UNIVERSITY OF BRISTOL [GB]/[GB]
Inventors
  • YU, HaNa
  • POTTER, Kevin
Agents
  • RIBEIRO, James
Priority Data
1306762.415.04.2013GB
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) METHOD AND APPARATUS FOR ALIGNING DISCONTINUOUS FIBRES
(FR) PROCÉDÉ ET APPAREIL POUR ALIGNER DES FIBRES DISCONTINUES
Abstract
(EN)
A method of manufacturing a fibre preform with aligned discontinuous fibres. A jet of liquid containing discontinuous fibres is directed onto an alignment surface from a nozzle so that the jet meets the alignment surface at an oblique angle and is deflected by the alignment surface into a channel between an opposed pair of channel surfaces. The fibres move along the channel after the jet has been deflected into the channel by the alignment surface. The liquid is removed from the fibres to provide the fibre preform which may optionally be impregnated with matrix to form a composite tape. At least some of the fibres have a length greater than a spacing between the channel surfaces.
(FR)
L'invention porte sur un procédé de fabrication d'une préforme de fibre avec des fibres discontinues alignées. Un jet de liquide contenant des fibres discontinues est dirigé sur une surface d'alignement à partir d'une buse, de telle sorte que le jet rencontre la surface d'alignement selon un angle oblique et est dévié par la surface d'alignement dans un canal entre une paire opposée de surfaces de canal. Les fibres se déplacent le long du canal après que le jet a été dévié dans le canal par la surface d'alignement. Le liquide est retiré à partir des fibres de façon à produire la préforme de fibre, qui peut, éventuellement, être imprégnée avec une matrice pour former une bande composite. Au moins certaines des fibres ont une longueur supérieure à un espacement entre les surfaces de canal.
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