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2. Stretch and Recovery The stretch characteristics of coverstitch seams allow the fabric to move freely. This is especially crucial for athletic wear and fitted clothing. The coverstitch's ability to stretch with the fabric means that seams are less likely to pop during wear.
double needle coverstitch

The double needles chain stitch sewing machine is a remarkable invention in the world of textile manufacturing that combines efficiency with precision. Not only does it enhance productivity, but it also elevates the quality of the sewing output, making it a preferred choice in many industrial applications, particularly in the fields of garment production and upholstery.
3. Insert the Twin Needle Position your twin needle in the needle clamp, ensuring that both needle shanks are seated correctly. Tighten the clamp screw securely to hold the needles in place.
how to use twin needle on sewing machine

When sewing leather and vinyl, the sewing machine must operate effectively with thick materials. Unlike standard fabrics, leather and vinyl do not fray easily, and they require a different approach in terms of needle size, thread type, and sewing speed. Additionally, when choosing a sewing machine for these materials, it is crucial to consider the presence of walking feet, heavy-duty construction, and the ability to handle thick layers without jamming.
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