Nonwoven medical fabric

Details Nonwoven medical fabric Nonwoven medical fabric

D - Textiles, Paper

04

H

18/507

D04H 1/56 (2006.01) A61B 19/08 (2006.01)

Patent

CA 1318993

NONWOVEN MEDICAL FABRIC Abstract of the Disclosure A non-reinforced microfiber fabric and a method of producing same is disclosed. The fabric has minimum grab tensile strength to weight ratio greater than 0.8 N per gram per square meter and a minimum Elmen- dorf tear strength to weight ratio greater than 0.04 N per gram per square meter. The fibers in the fabric have an average length greater than 10 centi- meters and at least 80% of the fibers have a diameter of 7 microns or less. The fabric is made by main- taining the polymer melt temperature at a level which minimizes molecular degradation and controlling the primary air velocity, volume and temperature to pro- duce the fibers with the above-stated characteristics. A highly uniform high velocity secondary air stream is introduced in quantities sufficient to cool the fibers and maintain good fiber separation. The fibers are collected at a forming distance which results in a web with low interfiber bonding, prior to embos- sing the web to form the fabric.

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