Document Type and Number:
Japanese Patent JPS5196662
Kind Code:
A
Abstract:
An electric blanket shell is composed of first and second-needled textile fabrics with a yarn layer disposed in at least one of the needled fabrics. The yarn layer 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 direction 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.
Application Number:
JP248576A
Publication Date:
August 25, 1976
Filing Date:
January 13, 1976
Export Citation:
International Classes:
A47G9/06; B29C65/08; B29C65/74; B32B5/06; D04H5/06; H05B3/34; (IPC1-7): A47G9/06