What are the classification, characteristics and main uses of sutures？

According to the raw materials, it can be divided into three categories: natural fiber sewing thread, synthetic fiber sewing thread and mixed sewing thread.

1. Natural fiber sewing thread

Cotton sewing thread --- a sewing thread made from cotton fiber through refining, bleaching, sizing and waxing. Cotton sewing thread can be divided into non-light (or soft thread), silk light and wax light. Cotton sewing thread has high strength and good heat resistance, suitable for high-speed sewing and durable pressing. It is mainly used for sewing cotton fabrics, leather and high-temperature ironed clothes, but the disadvantage is that it has poor elasticity and abrasion resistance.

Silk thread --- The filament thread or spun silk thread made of natural silk has excellent luster, and its strength, elasticity and abrasion resistance are better than cotton thread. Suitable for sewing all kinds of silk garments, high-end woolen garments, fur and leather garments, etc.

2. Synthetic fiber sewing thread

Polyester sewing thread-made of polyester filament or short fiber, it has high strength, good elasticity, abrasion resistance, low shrinkage rate and good chemical stability. However, the melting point is low, high-speed melting is easy, the needle hole is clogged, and the thread is easy to break. Pay attention to the selection of the needle. Mainly used in denim, sportswear, leather products, wool and military uniforms, etc., it is currently the most used and popular sewing thread.

Nylon sewing thread-made of pure nylon multifilament, divided into filament thread, short fiber thread and elastic deformation thread. At present, filament yarn is commonly used, which has large elongation and good elasticity, and its stretched length at the moment of breaking is three times larger than that of cotton yarn of the same specification. Used for sewing chemical fiber, woolen cloth, leather and elastic garments. The biggest advantage of nylon sewing thread is transparency. Because this thread is transparent and has good color, it reduces the difficulty of sewing and wiring and has a broad development prospect. However, due to the fact that the rigidity of the transparent thread on the market is too large, the strength is too low, the stitches are easy to float on the surface of the fabric, and the sewing speed cannot be too high. At present, this type of thread is mainly used for decals, skewers and other parts that are not susceptible to force.

Vinylon sewing thread --- made of vinylon fiber, with high strength and stable stitches, it is mainly used to sew thick canvas, furniture cloth, labor protection products, etc.

Acrylic sewing thread is made of acrylic fiber with low twist and bright dyeing. It is mainly used for decoration and embroidery.

3. Mixed sewing thread

Polyester-cotton sewing thread --- It is made of 65% polyester and 35% cotton blending. It has the advantages of polyester and cotton. It has high strength, wear resistance, heat resistance and good shrinkage. It is mainly used for cotton and polyester cotton. High-speed sewing of all kinds of clothing.

Core-spun sewing thread --- The filament is the core and is made of natural fiber outsourcing. The strength depends on the core thread. The wear resistance and heat resistance depend on the outer yarn. It is mainly used for high-speed and strong clothing sewing threads.