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simplified method for the production of a waterproof junction on tissues tristrato or bistrato, with or without a complex structure on the side of the union, formerly united with a seam or ultrasound.
simplified method for the production of a waterproof junction on tissues tristrato or bistrato, with or without a complex structure on the side of the union, formerly united with a seam or ultrasound.
A simplified method for making an impermeable joining on three-layer or bi-layer fabric materials, either with or without a complex construction on a joining side thereof, and being preliminarily joined by a stitching or ultrasound joining arrangement, wherein said method comprises only two method steps, a first joining step of joining two fabric material panels and a second impermeabilizing step carried out by cauterizing and sealing a strip element, and being performed by a single machine in a single operation thereof.
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