Melt spun polyester nonwoven sheet

D - Textiles – Paper – 04 – H

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

D04H 3/16 (2006.01) D01F 6/92 (2006.01) D04H 3/14 (2006.01)

Patent

CA 2389781

This invention provides a process for making a nonwoven sheet of substantially continuous melt spun fibers by extruding melt spinnable polymer containing at least 30 % by weight low IV poly(ethylene terephthalate), drawing the extruded fiber filaments at a rate of at least 6000 m/min, laying the fiber filaments down on a collection surface, and bonding the fiber filaments together to form a nonwoven sheet. The invention further provides a nonwoven sheet comprised of at least 30 % by weight poly(ethylene terephthalate) having an intrinsic viscosity of less than 0.62 dl/g, where the sheet has a basis weight of less than 125 g/m2, and a grab tensile strength of at least 0.7 N/(g/m2).

L'invention concerne un procédé de fabrication de feuilles en non-tissé de fibres filées par fusion sensiblement continues par extrusion de polymères pouvant être filés à chaud contenant au moins 30 % en poids de téréphtalate de polyéthylène à faible viscosité intrinsèque, par tirage de filaments de fibres extrudés à une vitesse d'au moins 6000 m/min, par pose des filaments de fibres sur une surface de collecte, et par liaison des filaments de fibres afin de former une feuille en non-tissé. L'invention concerne également une feuille en non-tissé constituée d'au moins 30 % en poids de téréphtalate de polyéthylène comportant une viscosité intrinsèque inférieure à 0,62 dl/g, la feuille possédant un poids spécifique inférieur à 125g/m?2¿, et une force d'arrachement d'au moins 0,7 N//(g/m?2¿).

LandOfFree

Say what you really think

Search LandOfFree.com for Canadian inventors and patents. Rate them and share your experience with other people.

Rating

Melt spun polyester nonwoven sheet does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Melt spun polyester nonwoven sheet, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Melt spun polyester nonwoven sheet will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-1652008

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.