Patent ID: 6828261
Filing Date: 2004-12-07
Classification: D01F,D21F,Y10T

Abstract:
An industrial textile comprisingan MD yarn system interwoven with a CD yarn system, at least one of the MD and CD yarn systems comprising a filament formed from first and second polymers that are compatible and have sufficient interfacial adhesion to remain bonded together that are mixed as alloys and extruded, the first polymer is selected from the group consisting of Polyamide 6/6, Polyamide 6/10 or Polyamide 6/12, and has a first, higher temperature melting point that is at least 50Â° C. higher than a second, lower temperature melting point of the second polymer which is selected from the group consisting of Polyamide 11 or Polyamide 12, and the first and second polymers are mixed so that upon heating, two distinct melting points are observed, and at a temperature less than the first, high temperature the filament remains stable and can be heat set with reduced internal strain in the filament; the interwoven MD and CD yarn systems being heat set at a temperature at least equal to the second, lower melting point temperature resulting in a fabric with a wet edge curl that is generally within a range of 4.5 times the dry edge curl.