Ultrasonic fusion welding process for waterproof seam

Abstract

The invention provides an ultrasonic fusion welding process for a waterproof seam, and relates to a new process for manufacturing the sewing-thread-free outdoor garment waterproof seam through the ultrasonic fusion welding technology and the heat-seal taping technology. On the basis of the problems that in the industrial outdoor garment production process, water seepage and shrinkage of the waterproof seam are large, the ultrasonic fusion welding and heat-seal taping process is invented. In the new process, a traditional sewing technology is replaced with the ultrasonic fusion welding technology, the seal allowance edge removal and cut piece fusion can be completed in one step, the initial seam allowance amount is decreased, fabric is saved, the process flow is simplified, and the shrinkage of the seam is reduced; the sewing-thread-free seam is formed, a smooth fusion interface is provided for the heat-seal taping technology, the fusion firmness of the seam and adhesive tape is improved, and the waterproof performance of the seam is improved; sewing threads are omitted, and therefore an outdoor garment produced through the new process is lighter in weight and smoother and more attractive in appearance, raw materials are saved, and the garment cost is reduced. The ultrasonic fusion welding process provides technical support for improving the outdoor garment product quality and the production efficiency and increasing the product science and technology additional value.

Description

technical field [0001] The invention relates to a waterproof seam processing technology for outdoor clothing, in particular to a waterproof seam manufacturing technology for outdoor clothing such as jackets and ski clothing. Background technique [0002] Outdoor clothing must have strong waterproof performance to withstand the test of natural weather such as rain and snow. Outdoor clothing mainly obtains waterproof performance through waterproof fabrics and seam connection technology. The seam connection technology is the key to whether the seam can obtain high waterproof performance. In the process of industrialized production of outdoor clothing, the main quality problems of seams are: large seam leakage and shrinkage. [0003] At present, the process of sewing combined with heat sealing and gluing is widely used in the production of waterproof seams for outdoor clothing. Although the sewing process is mature and can improve the strength of the seam, when the heat-seali...

AI Technical Summary

Problems solved by technology

In the process of industrialized production of outdoor clothing, the main quality problems of seams are: seam leakage and large shrinkage

Although the sewing process is mature and can improve the strength of the seam, when the heat-sealing tape is bonded along the seam track, the surface of the seam presents a three-dimensional structure due to the existence of stitches and seam allowances, and the sealing performance between the tape and the seam changes. Weak; at the same time, due to the existence of pinholes and sutures, the waterproof performance of the seam is reduced; the sewing process will cause sewing shrinkage, and the heat sealing and gluing must be carried out in conjunction with the manual cleaning process, which is relatively cumbersome

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