Abstract: A yarn containing filaments made from synthetic polymers has a cross-section having at least 5 vertices, a titer of 1 to 7 dtex and a tenacity of at least 60 cN/tex. The filaments of the yarn preferably have a cross-section having 5 to 8 vertices, possibly with indentations between the vertices. The cross-section of the filaments is preferably star-shaped. The yarn preferably has a tenacity of 60 to 85 cN/tex, an elongation at break of 15% to 35%, a hot-air shrinkage of 4% to 10% and a stretch recovery of 250 to 400 cN/tex. The yarn is excellently suited for use in the manufacture of industrial fabrics, particularly airbag fabrics.
Type:
Grant
Filed:
April 24, 2003
Date of Patent:
September 7, 2004
Assignee:
Polyamide High Performace GmbH
Inventors:
Ralf Koehnen, Frank Leymann, Britta Konrad, Gerhard Berberich, Hans Albert Graefe, Andreas Tulke, Qiao Xiao