The zigzag stitch, a staple in sewing, expands the possibilities of what you can create. Unlike straight stitches, zigzag stitches can stretch, making them ideal for knit fabrics and for areas that require flexibility, like armholes and waistbands. Additionally, zigzag stitches can be used for decorative purposes and finishing edges to prevent fraying. The ability to switch between zigzag and straight stitches means that the long arm heavy duty zigzag sewing machine can adapt to various sewing techniques, allowing for delicate embellishments or sturdy seams as needed.
For manufacturers, the adoption of automatic shoe sewing machines translates to increased output and consistency
Selecting the correct needle plays a significant role in the stitching process. For leather, a needle with a triangular or chisel point is recommended. This design allows for easier penetration through tough leather fibers. Additionally, the size of the needle should correspond to the weight of the leather being used. A heavier needle (e.g., sizes 18-22) is suitable for thick leather, while a lighter needle (sizes 14-16) works better for thinner varieties.