Seamless wave bottom of underpants and technology for compounding wave bottom and hot melting adhesive tape

Abstract

The invention relates to a seamless wave bottom of underpants and a technology for compounding the wave bottom and a hot melting adhesive tape. The seamless wave bottom comprises a wave bottom fixing area arranged on an underpants main body, and the wave bottom is formed on the wave bottom fixing area through seamless pressure pasting; the seamless wave bottom is characterized in that the hot melting adhesive tape with the width being L is arranged on the wave bottom close to the contour edge, the hot melting adhesive tape is arranged in a manner of integrally extending along the contour edge of the wave bottom, and the wave bottom is formed on the wave bottom fixing area through hot-pressing laminating by adopting the hot melting adhesive tape. The technology for compounding the wave bottom and the hot melting adhesive tape comprises the following steps: (1) slitting a hot melting adhesive film and a fabric of the wave bottom; (2) punching a positioning hole and an inner frame hole; (3) carrying out thermal compounding on the hot melting adhesive film and the fabric; and (4) forming the wave bottom finished product through die cutting and integrated blanking. The process is simple and reasonable, the processing efficiency is high, the operation is safe and reliable, the technology is energy-saving and environmentally friendly, and the production cost is greatly reduced.

Description

technical field [0001] The invention relates to a seamless corrugated bottom for underwear and a process thereof, in particular to a seamless corrugated bottom for underwear and a process for compounding the corrugated bottom with hot-melt adhesive strips. Background technique [0002] At present, seamless underwear is gradually becoming popular, but it relies too much on manual operation, which has low efficiency and high manufacturing cost, and cannot enter the homes of ordinary people. In traditional crafts, the production steps of wave bottom are as follows: [0003] (1), cut the main fabric and wave bottom fabric; [0004] (2), manual glue on the wave bottom: specifically, on the edges of the wave bottom fabric 1 (such as figure 1 shown) or glue the front and back wave edges (such as figure 2 shown), the gluing is actually manually attaching the hot-melt adhesive strips 2 one by one to the position near the edge of the wave bottom fabric 1; The rubber strip 2 is a r...

AI Technical Summary

Problems solved by technology

[0010] In the traditional process mentioned above, because the bottom of the wave has a radian, the straight strips will be arched after they are pasted together; at the same time, the four diagonal corners glued around the edges often appear to be superimposed and cause unevenness; in addition, the corner cutting process In the process, because the scissors and the adhesive film will bond, glue leakage often occurs; moreover, the above steps are all performed manually, and the assembly line with a group of 15 people can produce 60 pieces per day per person, but in order to produce more, the production Manufacturers must invest a lot of fixed equipment and manpower, resulting in very high manufacturing costs

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