Heat pack and process of production thereof

Details Heat pack and process of production thereof Heat pack and process of production thereof

A - Human Necessities

61

M

28/9, 128/130.5

A61M 25/00 (2006.01) A61F 7/00 (2006.01) A61F 7/02 (2006.01) A61F 7/08 (2006.01) B32B 5/06 (2006.01) B42D 15/02 (2006.01) G03G 13/20 (2006.01)

Patent

CA 1200731

ABSTRACT A heat pack and a process for its preparation are described wherein the heat pack comprises an earth-like mass between two outer layers surrounding the mass and the two outer layers are joined together by means of holding fibers uniformly distributed over their entire surface area. The joining of the three layers may be effected by a needle bonding process known in the needle tufting process of the textile industry. Webs of the three-layer system needle bonded in this manner are cut into pieces according to their application, thereby forming the heat packs as such, and packaged into foil bags in which the heat packs may be stored and heated.

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