发明名称 METHOD OF MANUFACTURING PAPERMAKER'S FELT
摘要 The present invention provides a solution to the prior art problem of producing a high density papermkers batt fabric or felt which may be secured to an undamaged under layer in an economic manner. The present invention provides these improvements by providing a batt which is comprised of a non-woven low melt scrim to which the batt material is initially needled. Subsequent to producing a batt of the required density, the batt may, if desired, be needled or adhered to an under layer fabric. The completed felt will be subjected a heat pressing operation which will elevate the temperature of the batt to a temperature above the softening temperature of the scrim but below the melting point of the batt fibers. In this manner, the batt and under layer fabric are unified to produce a multilayer papermakers felt with minimum effort and disruption of the under layer.
申请公布号 CA1292633(C) 申请公布日期 1991.12.03
申请号 CA19870532990 申请日期 1987.03.25
申请人 ASTEN GROUP, INC. 发明人 PENVEN, PATRICK H.
分类号 B32B5/06;D04H1/48;D04H13/00 主分类号 B32B5/06
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