Improved expanded ptfe fiber and fabric and method of making...

Details Improved expanded ptfe fiber and fabric and method of making... Improved expanded ptfe fiber and fabric and method of making...

D - Textiles, Paper

01

F

D01F 6/70 (2006.01) D01D 5/42 (2006.01) D01F 6/12 (2006.01)

Patent

CA 2163659

The present invention is an expanded polytetrafluoroethylene (PTFE) fiber with improved handling properties. Unlike previous expanded PTFE fibers, the fiber of the present invention employs a fiber of increased thickness so that the fiber is maintained in an unfolded orientation. The improved processing steps of the present invention create a fiber that has a number of improved properties, including more uniform dimensions along its length, improved compressibility and handling, and when woven into a fabric, the fabric is more easily processed, is of higher quality, and is more uniform.

La présente invention concerne une fibre en PTFE expansé à caractéristiques de maniement perfectionnées. Contrairement aux fibres en PTFE expansé de l'art antérieur, la fibre de la présente invention est plus épaisse de sorte qu'elle soit maintenue en une orientation déroulée. Le procédé de fabrication de la présente invention permet d'obtenir une fibre avec un certain nombre de caractéristiques améliorées, en particulier des dimensions plus uniformes sur sa longueur, une meilleure compressibilité, une plus grande facilité de maniement et, lorsqu'elle est tissée pour former une étoffe, cette étoffe est plus facile à mettre en oeuvre, elle est de meilleure qualité et plus uniforme.

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