发明名称 ADJUSTABLE FABRIC FOR USE AS A PAPERMAKING FELT WITH ZIG-ZAG PATTERNED CROSS MACHINE YARNS
摘要 An endless fabric, such as a papermaker's felt, composed of a series of generally parallel warp yarns and having cross machine yarns or fibers extending in a zig-zag pattern across the warp yarns. The cross machine yarns in each section of the zig-zag pattern extend at an acute angle up to 80 DEG with respect to a line normal to the warp yarns. The cross machine yarns are stabilized in their zig-zag pattern by physical or chemical means, such as by needling or heat setting, but remain adjustable thereafter in angularity with respect to the warp yarns once installed on a papermaking machine.
申请公布号 US3652389(A) 申请公布日期 1972.03.28
申请号 USD3652389 申请日期 1969.03.14
申请人 APPLETON MILLS 发明人 HOWARD M. HELLAND
分类号 D03D25/00;D04H1/74;D21F1/00;D21F1/10;(IPC1-7):D21F7/12 主分类号 D03D25/00
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