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How to avoid wrinkling of fabric sewn by sewing equipment

How to avoid wrinkling of fabric sewn by sewing equipment

We should all know that the fabric itselfSewing equipmentThe sewing conditions of the sewing machine have a great influence, such as some finely organized fabrics, finished fabrics, thinner and non-stretchable fabrics. When the sewing direction of the sewing machine is parallel to the warp direction of these fabrics, the embedded stitch The thread will force the warp yarn to leave its original position. Since each suture will push the warp yarn apart, the deviation caused by the accumulation of multiple sutures will shrink along the suture body, causing the suture to wrinkle. When the sewing direction of the sewing machine is parallel to the weft direction of these fabrics, the wrinkles are usually small.

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According to years of experience, when the sewing machine is used for oblique seams, there will be no wrinkles. For most fabrics, wrinkles can be avoided as long as the seam direction is 15° in latitude and longitude. Therefore, when sewing with sewing equipment, consider diagonal sewing. If necessary, apply a smoothing agent to the cloth. In addition, fine needles should be used as much as possible. Because the resistance generated by the fine needles through the cloth is obviously reduced, it has the function of preventing the seam shrinkage and wrinkling of the sewing equipment of the sewing machine. At the same time, pay attention to frequent replacement of new needles.

When using synthetic sewing thread in sewing equipment, you must carefully determine the tension of the sewing thread and adjust the tension to a smaller value. The bottom thread tension must be adjusted so that when the end of the free movement of the suture is pulled up, the bottom thread spindle and the bottom thread cover slowly slide down, and the upper and bottom thread tensions must be the same, so that they are exactly interwoven between the two layers of cloth. Because if the tension of the synthetic sewing thread used in the sewing equipment of the sewing machine into the fabric is too large, it will automatically shrink to relieve this tension. This phenomenon causes the fabric to shrink along the seam and then wrinkles the seam.

In addition, it should be noted that the friction between the upper fabric of the sewing machine and the presser foot will also force the lower fabric to move faster on the feed teeth, causing the seam to wrinkle. Therefore, as long as you reduce the pressure of the presser foot as much as possible and use fine-toothed feeding teeth, you can reduce the speed of the sewing machine to avoid wrinkles caused by feeding. The fundamental way to solve this problem is to use differential feeding or needle feeding mechanism needles. Car sewing equipment.

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