SIMPLIFIED METHOD FOR MAKING IMPERMEABLE JOINING ON THREE-LAYER OR BI-LAYER FABRIC MATERIAL, EITHER WITH OR WITHOUT COMPLEX CONSTRUCTION ON JOINING SIDE THEREOF, AND BEING PRELIMINARILY JOINTED BY STITCHING OR ULTRASOUND JOINING ARRANGEMENT

摘要

PROBLEM TO BE SOLVED: To provide 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 face thereof, and being preliminarily joined by a stitching or ultrasound joining arrangement.SOLUTION: The method comprises only two method steps including: a first joining step of joining two fabric material panels; and a second impermeabilizing step which is carried out by cauterizing and sealing a strip element, and is performed by a single machine in a single operation thereof.