Search International and National Patent Collections

1. (WO2018204154) LOW PERMEABILITY AND HIGH STRENGTH WOVEN FABRIC AND METHODS OF MAKING THE SAME

Pub. No.:    WO/2018/204154    International Application No.:    PCT/US2018/029504
Publication Date: Fri Nov 09 00:59:59 CET 2018 International Filing Date: Fri Apr 27 01:59:59 CEST 2018
IPC: B60R 21/16
B60R 21/235
D03D 1/02
Applicants: INVISTA TEXTILES (U.K.) LIMITED
Inventors: HUNT, Neil
Title: LOW PERMEABILITY AND HIGH STRENGTH WOVEN FABRIC AND METHODS OF MAKING THE SAME
Abstract:
A method for producing a woven fabric comprises weaving fibers in a warp direction and a weft direction to form a fabric having a top surface and a bottom surface, wherein the warp fibers and weft fibers each comprises one or more filaments of a synthetic polymer having substantially uniform cross-sectional composition. At least a portion of the filaments in the fibers on the top and/or bottom surface of the fabric are then fused together in the presence of a heat transfer liquid or vapor added during the fusing step or added in a prior step of the fabric production process and retained by the filaments. The fusing step produces a treated fabric having a tensile strength in both the warp and weft directions of 1000 N or greater and having, in the absence of any coating, a static air permeability (SAP) of 3 l/dm2/min or lower.