Electric blanket shell and method of production

Details Electric blanket shell and method of production Electric blanket shell and method of production

B - Operations, Transporting

32

B

309/14, 154/71

B32B 3/26 (2006.01) B29C 65/08 (2006.01) B29C 65/74 (2006.01) B32B 5/06 (2006.01) D04H 5/06 (2006.01) H05B 3/34 (2006.01)

Patent

CA 1074683

ABSTRACT OF THE DISCLOSURE An electric blanket shell is composed of first and second-needled textile fabrics with a yarn layer disposed in at least on of the needled fabrics. The yarn has a plurality of first planar yarns extending generally in a first planar direction. A heat-fusible component is disposed in at least one of the needled fabrics. A plurality of small, discrete sonically or ultra-sonically-produced fusion bonds, spaced from each other, link the needled fabrics to form a blanket shell. The fusion bonds form a series of patterns across a planar dimension of the blanket shell and the patterns define a series of channels, for receiving heating wires, between the needled fabrics. The patterns of fusion bonds are disposed in a direction traverse to the dir- ection of the first planar yarns. The fusion bonds of any one pattern do not engage more than about 50% of the first planar yarns and overlaps of fusion-bond patterns are substantially avoided. - 1 -

243518

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