Process for producing a shoe

Claim 1

A process for producing a shoe insole which comprises: laminating (A) a coarse mesh-like woven cloth backing made of monofilaments of a vinylidene chloride-type polymer, (B) a honeycomb-woven cloth intermediate layer made of monofilaments of said vinylidene chloride-type polymer, (S) a sheet prepared by coating a latex containing activated carbon powder, copper powder and magnetic powder on a non-woven cloth made of staple fibers of said vinylidene chloride-type polymer and/or a vinyl chloride-type polymer and heat-treating the coated cloth, and (D) a fine-woven cloth surface layer made of monofilaments of said vinylidene chloride-type polymer in order to form a laminate, placing an insulating buffering material comprising a laminate of a paper sheet having a thickness of about 0.1 to 0.5 mm and a polyester film having a thickness of about 0.02 to 0.1 mm on a flat plate-like lower electrode of a high-frequency welding machine, placing said laminate on top of the buffering material, superimposing a polyester film having a thickness of 0.01 to 0.02 mm on said laminate, causing an upper electrode whose peripheral portion is sharpened by inclining projections at the lower end thereof to descend toward the lower electrode 3 to press the buffering material, laminate and polyester film between the two electrodes, passing a high frequency current across the two electrodes to simultaneously weld and cut off the peripheral portion of the laminate, and then exposing said product to a magnetic field to magnetize it.