4. Capacity to Handle Heavy Materials Leather is known for its resistance and thickness, which can be a challenge for many sewing machines. Manual leather sewing machines are often designed with robust mechanisms that can handle the heft of leather without jamming or breaking needles. This capability makes them ideal for crafting a wide range of leather products.
One of the most significant advantages of automatic machine sewing is its ability to boost production speed. Traditional sewing methods often require skilled laborers to complete each step of the sewing process, which can be time-consuming and labor-intensive. In contrast, automatic sewing machines can perform numerous tasks in a fraction of the time. For example, automated machines can sew hems, attach buttons, and finish seams all in one pass, drastically reducing the time required to produce garments. This efficiency not only meets the increasing demand for faster turnaround times in the fashion industry but also contributes to cost savings.
2. Flexibility The chain stitch is highly elastic, which allows the seams to retain their shape even when stretched. This characteristic makes it the preferred choice for sewing knit fabrics or garments that require a degree of stretch, such as athletic wear.
Jumbo bags, also known as flexible intermediate bulk containers (FIBCs), are robust bags designed to hold large quantities of materials, typically ranging from 500 kg to 2000 kg. Their construction often includes durable woven polypropylene fabric that provides excellent strength and resilience. However, the effectiveness of these bags largely depends on how well they are sealed, which is where the lock stitch technique comes into play.