Polymer Group, Inc.

Charles Eric Pearce

Michael J Putnam

Cheryl Carlson

Ping Hao

Sergio Diaz De Leon

Sergio DeLeon

A filter media formed in accordance with the present invention comprises hydroentangled, predominantly polyester staple length fibers having a basis weight of no more than about 12 oz/yd. The filter media exhibits a Mullen burst strength of at least about 395 psi, and machine-direction and cross-direction shrinkage of less than about 3%, preferably less than about 2% . The filter media exhibits a machine-direction tensile strength of at least about 105 lb/in, and a cross-direction tensile strength of at least about 110 lb/in.

Hydroentangled filter media and method

A filter media formed in accordance with the present invention comprises hydroentangled, predominantly polyester staple length fibers having a basis weight of no more than about 12 oz/yd. The filter media exhibits a Mullen burst strength of at least about 395 psi, and machine-direction and cross-direction shrinkage of less than about 3%, preferably less than about 2%. The filter media exhibits a machine-direction tensile strength of at least about 105 lb/in, and a cross-direction tensile strength of at least about 110 lb/in.

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Charlotte, NC, United States of America

Charles Eric Pearce