D - Textiles – Paper – 21 – F
Patent
D - Textiles, Paper
21
F
D21F 1/10 (2006.01) D01D 5/253 (2006.01) D03D 1/00 (2006.01) D03D 15/00 (2006.01) D04H 3/10 (2006.01) D04H 5/02 (2006.01) D04H 13/00 (2006.01) D21F 1/00 (2006.01) D21F 7/08 (2006.01)
Patent
CA 2164573
A papermaking fabric for use in the forming, press or dryer section of a papermaking machine or the like includes a base layer formed at least partially of multi-lobed yarns. The multi-lobed yarns are defined by a plurality of strands fused together to form joints therebetween, with the strands cooperating to define an internal passage. The strands are locally separable so that, during a needling operation in which a fibrous batt layer is secured to the base layer, the needles locally separate one or more strands to force a penetrating portion of the fibrous batt layer therethrough. The portions of the yarn adjacent the local separation grip the penetrating portion of the batt layer, to signifi- cantly increase the batt locking properties of the base layer. The multi-lobed construction of the yarn defines longitudinal indentations which increase the overall void volume of the base layer.
Appleton Mills
Goudreau Gage Dubuc
LandOfFree
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