Patent ID: 9290877
Filing Date: 2016-03-22
CPC Classification: D04H,D06C,D10B,Y10T

Claim Text:
1. A method of fabricating nonwoven fabric having enhanced abrasion resistance of a surface of the nonwoven fabric, comprising providing a thermally bonded nonwoven fabric comprising thermoplastic bicomponent sheath/core filaments with a polyethylene sheath and a polyethylene terephthalate core and having a thickness to basis weight ratio of at least 5 μm/gsm, wrapping said thermally bonded nonwoven in a tensioned state around and in contact with a portion of a circumferential surface of a heated smooth roll which subtends a wrap angle to apply heat and pressure on one surface of a portion of said thermally bonded nonwoven fabric so that at least one side of said thermally bonded nonwoven fabric comprises thermoplastic filaments which are at least partially flattened while not applying any heat or pressure on the other surface of said portion of said thermally bonded nonwoven fabric, said one side having an average weight loss not greater than 0.62% calculated based on weight loss measured by a Taber shaving weight loss test method as indicated in the description.