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Catalogue

Sewing with double needle

Sewing with a twin needle is a technique that allows a sewing machine to create two parallel straight stitches at once. For this, a special needle, known as a twin needle, is used, which consists of a single shank for attachment to the machine and two separate points. The machine works with two upper threads, each guided into one needle point, and a single bobbin thread from the bobbin. The result is a double straight stitch on the right side of the fabric, while on the wrong side, the bobbin thread interlaces between both upper threads, creating a zigzag stitch. This combination of stitches provides elasticity to the seam and is therefore often used for finishing hems on stretchy materials, such as knits or jersey fabric. The appearance of such a stitch resembles the stitch from a professional machine called a "coverlock".

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