Stitch structure

Abstract

A stitch structure capable of effectively preventing the occurrence of raveling peculiar to double chain stitches irrespective of sewing conditions is provided by the stitch structure of double chain stitches including a plural number of needle threads forming rows of thread loops at the rear face of a cloth and one looper thread entwined with the rows of thread loops at the rear face of the cloth; wherein the looper thread is cut at one side of the positions at which it is entwined in the mode of interlacing with the preceding loops preceding to the final loops at the respective sewing termination ends of the respective rows of thread loops.

Description

technical field [0001] The present invention relates to a stitch structure of Double Chain Stitches formed on a sewn product by a sewing machine, and more particularly to a stitch structure for preventing Snag Stitch at the end of sewing. Background technique [0002] In the process of sewing with a sewing machine, especially with an industrial sewing machine, various forms of stitch structures are used in order to suit the type and location of the sewing product. As one of such stitch structures, there is a double-thread overlock stitch structure represented by the symbol D in the Japanese Industrial Standard, and there is also a double-thread overlock stitch that is represented by the symbol F in the Japanese Industrial Standard. The stitch structure of the flat chain stitch in which decorative stitches are added to the upper decorative thread. [0003] Fig. 1 is an explanatory view of the stitch structure of the double overlock, showing the stitches of the overlock that ...

AI Technical Summary

Problems solved by technology

The above-mentioned slack in the final stitch 2a / 2a is likely to occur when sewing with a soft upper thread 2 / 2 and a weak tension

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