At the heart of the Union Lockstitch is its unique mechanism, which utilizes two threads—one from the needle and the other from a bobbin underneath the sewing plate. This lockstitch design creates a strong, durable seam that is essential for various types of fabric, including heavy materials like denim and lightweight textiles like silk. The machine operates by interlocking these two threads through a series of movement cycles, ensuring that the stitches are evenly spaced and consistent in tension.
One of the primary advantages of an upholstery hand sewing machine over a regular sewing machine is its portability and ease of use. Upholsterers often find themselves in various settings, whether it's in a workshop, a client's home, or even at events. A hand sewing machine provides the flexibility to work in different environments without being tethered to a large, stationary machine.
upholstery hand sewing machine

2. Install the Double Needle Turn off your sewing machine for safety. Remove the current needle and insert the double needle into the needle clamp, ensuring that it is securely in place. The two needle points should hang down evenly to ensure proper stitching.