Patent ID: 6823568
Filing Date: 2004-11-30
Classification: D04H,D21F,D21H,Y10T

Abstract:
A method of making a nonwoven fabric containing thermoplastic synthetic microfibers, said method comprising the steps of:a. providing a wet sheet from a slurry containing about 0.5 to 20% by weight of a fibrous mixture dispersed in water, said fibrous mixture comprising about 90 to 10% by weight of thermoplastic fibers that are about 7 to 30 mm long and as fine as about 0.1 to 0.8 d mixed with about 10 to 90% by weight of pulp fibers that are about 2 to 7 mm long; b. placing said wet sheet on a support; c. subjecting said wet sheet to high velocity water jet streams of about 50 to 200 kgf/cm2 to effect mechanically entangling of said fibrous mixture and to obtain a nonwoven fabric; and d. passing said nonwoven fabric between a pair of embossing rolls to produce a plurality of discrete protuberances in said nonwoven fabric, said plurality of discrete protuberances being spaced apart from one another in both a longitudinal and a transverse direction of the nonwoven fabric.