The comprehensive index for assessing the quality of 100% Sewing Thread is seamability. Sewability means the ability of 100% Sewing Thread to sew smoothly and form good stitches under specified conditions, and maintain certain mechanical properties in the stitches. The pros and cons of sewability will have a direct impact on the production efficiency, sewing quality and wearing performance of garments. According to the national standards, the grades of sewing threads are divided into first-class, second-class and second-class products.

    In order to make 100% Sewing Thread have good seamability in garment processing, and the sewing effect is satisfactory, it is very important to select and apply the sewing thread correctly. The correct application of sewing thread should follow the following principles:

    ⑴ Compatible with the characteristics of the fabric: 100% Sewing Thread is the same or similar to the material of the fabric to achieve the unity of shrinkage, heat resistance, abrasion resistance, durability, etc., and avoid the difference between the thread and the fabric and cause the appearance of wrinkles Shrink.

    ⑵ Consistent with the type of clothing: For special-purpose clothing, special sewing threads should be considered. For example, elastic sewing threads should be used for elastic clothing, and 100% Sewing Thread that has been heat-resistant, flame-retardant and waterproof should be used for fire-fighting clothing.

    ⑶ Coordinating with the stitch shape: different stitches used in different parts of the garment, 100% Sewing Thread should also be changed accordingly, such as overlock sewing needs to use bulky thread or deformed thread, double thread stitch should choose a line with large extensibility , The crotch seam and shoulder seam should be firm, while the buttonhole line needs to be durable.

    ⑷ Consistent with quality and price: The quality and price of 100% Sewing Thread should be consistent with the grade of clothing. For high-quality clothing, use high-quality and high-priced sewing threads, and medium and low-grade clothing use ordinary quality and moderately priced sewing threads. Generally, the sewing thread's label is marked with the grade of the sewing thread, the raw materials used, the yarn count, etc., which helps us to choose and use the sewing thread reasonably. Sewing thread signs usually include four items (in order): yarn thickness, color, raw materials, and processing methods.