Filter media web product

B - Operations – Transporting – 01 – D

Patent

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Details

B01D 39/16 (2006.01) B29C 47/30 (2006.01) B32B 5/26 (2006.01) D01D 4/00 (2006.01) D01D 4/02 (2006.01) D01D 5/098 (2006.01) D04H 1/54 (2006.01) D04H 1/56 (2006.01)

Patent

CA 2209402

A method, die apparatus and product wherein a layered web of melt blown fibrous filter media is produced by a unitary die including several die sources with facing layers of the fibrous filter media being attenuated by opposed fluid streams at preselected included angles and with the fiber layers being free from bonding together and with the fibers in each layer being minimally bonded.

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