US 7,475,455 B2
	Fiber-made surface fastener for reducing unpleasant noise at peeling-off and product provided therewith
Akira Ishibashi, Toyama-ken (Japan); Teiichi Murayama, Toyama-ken (Japan); Mamoru Tanaka, Toyama-ken (Japan); and Shintaro Ohsugi, Toyama-ken (Japan)
Assigned to YKK Corporation, Tokyo (Japan)
Appl. No. 10/536,474 PCT Filed Nov. 13, 2003, PCT No. PCT/JP03/14470 § 371(c)(1), (2), (4) Date May 25, 2005, PCT Pub. No. WO2004/047581, PCT Pub. Date Jun. 10, 2004.
Claims priority of application No. 2002-341930 (JP), filed on Nov. 26, 2002.
Prior Publication US 2006/0130293 A1, Jun. 22, 2006
Int. Cl. A44B 18/00 (2006.01)

U.S. Cl. 24—442

12 Claims

1. A fiber-made surface fastener comprising joining faces in which a plurality of fiber-made engaging elements are provided on one surface of each flat base fabric, wherein a ratio A/B of an area A of a range in which sound spectrum of a peeling-off sound produced when the joining faces of the surface fastener in an engaged state are peeled off Fourier-transformed in arange of 100 Hz to 15000 Hz is 100 Hz to 3000 Hz to an area B of a range in which sound spectrum of a peeling-off sound produced when the joining faces of the surface fastener in an engaged state are peeled off Fourier-transformed in a range of 100 Hz to 15000 Hz is 3000 Hz to 15000 Hz is 0.4 or more, an apparent density of a base fabric of each of fiber-made surface fastener members which engage each other is 0.5 g/cm3 or less and a joining face of at least one surface fastener member is composed of a plurality of fiber-made engaging elements distributed uniformly on the entire surface of each flat base fabric, and a sum of bending strength of base fabrics of male and female surface fastener members is 36 gf·cm/2.5 cm or less when each base fabric is bent at 180° in a radius of 4.0 mm.