发明名称 Papermaking apparatus having a seamed wet press felt
摘要 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.
申请公布号 US4824525(A) 申请公布日期 1989.04.25
申请号 US19870108491 申请日期 1987.10.14
申请人 ASTEN GROUP, INC. 发明人 PENVEN, PATRICK H.
分类号 D21F1/00;D21F7/08;(IPC1-7):D21F3/00 主分类号 D21F1/00
代理机构 代理人
主权项
地址