Papermaking apparatus having a seamed wet press felt

Details Papermaking apparatus having a seamed wet press felt Papermaking apparatus having a seamed wet press felt

1987-10-14

1989-04-25

Bell, James J.

Paper making and fiber liberation

Apparatus

Running or indefinite length product forming and/or treating...

D21F 300

Patent

active

048245259

ABSTRACT:
A papermaker's wet press felt is formed from a flat woven base fabric having the crimped warp yarns of the fabric weave oriented in the lengthwise machine running direction. The warp yarns are formed into seaming loops at the ends of the base fabric which are joined so as to form an endless felt. At least one layer of non-woven batt material is affixed to the base fabric, typically by needling. The flat woven base fabric including from at least 30 to 50 machine direction, crimped warp yarns per inch for a single layer weave and at least 60 to 100 machine direction, crimped warp yarns per inch for a multi-layer weave.

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