Sewing thread is the main line material, which is used to sew all kinds of clothing materials, and it has dual functions of practicality and decoration. The quality of sewing thread not only affects the efficiency and cost, but also affects the appearance quality of finished garments.
Classification and characteristics of sewing thread
Clothing sewing thread, according to the raw material is usually divided into three categories of natural fiber sewing thread, synthetic fiber sewing thread and mixed sewing thread.
1, natural fiber sewing thread
A, cotton sewing thread: using cotton fiber as raw material by sewing thread bleaching and sizing and waxing processes. Cotton sewing thread can be divided into no light (or cord), light wire and wax light.
Cotton sewing thread has high strength, good heat resistance, and is suitable for high speed sewing and durable press, mainly used for sewing cotton fabric, leather and high temperature ironing clothes. Disadvantage is poor flexibility and wear resistance.
B, silk line: made of natural silk long silk or silk thread, with excellent gloss, the strength, elastic modulus and wear resistance are better than cotton, suitable for sewing various types of silk clothing, high-grade wool clothing, fur and leather clothing.
2, synthetic fiber sewing thread
A, polyester sewing thread: This is the most widely used, the most popular sewing thread, polyester filament or staple fiber as raw material. Polyester sewing thread with high strength, good elasticity, wear resistance, shrinkage rate is low, the chemical stability is good, the main used for jeans, athletic wear, leather products, wool and uniforms, sewing. Here should be noted is that low melting point polyester suture, in high-speed sewing easy melting, plug the eye of a needle, resulting in suture rupture, so it is necessary to choose the appropriate needle.
B, nylon sewing thread: Nylon sewing thread made of pure nylon multifilament, filament and short fiber lines and elastic deformation of three lines, the main varieties is long nylon thread. Its advantage lies in the extended degree, good elasticity, the fault transient tensile length was three times higher than the thread of the same specifications. Therefore, it is suitable for sewing chemical fiber, cloth, leather and elastic garment. Nylon sewing thread, the biggest advantage lies in the transparent, due to the transparent line, and color better, thus reducing the sewing wiring difficulties, development prospect is broad. However, limited to the current market, the transparency of the line is too large, the intensity is too low, the line is easy to float on the fabric surface, coupled with the high temperature, the seam speed can not be too high. The line is mainly used for the embroidered applique, is not easy to force parts.
C, vinylon sewing thread: made of vinylon fiber, high strength, smooth stitch, mainly for sewing thick canvas, fabric furniture, labor protection products.
D, acrylic sewing thread: made of acrylic fiber, mainly used as decorative line and embroidery thread, yarn twist is low and stained.
3, mixed sewing thread
A, polyester / cotton sewing thread: the use of 65% polyester and 35% of the cotton blend, both polyester and cotton. Polyester / cotton sewing thread can ensure strength, wear resistance, shrinkage rate requirements, but also can overcome the defects of polyester heat, suitable for high speed sewing can be used for all kinds of cotton, polyester / cotton apparel.
B, core sewing thread: the thread is the core, and the sewing thread is made from natural fibers. The strength of the core sewing thread depends on the core, and the wear resistance and heat resistance depend on the outer yarn. As a result, the core sewing thread is suitable for high speed sewing, and the garment with high sewing speed is needed.
The principle that should be followed to make good use of sewing thread
The comprehensive index for evaluating the quality of sewing thread is seam.
Under the condition of the specified conditions, the sewing thread can form a good track, and the ability to maintain a certain mechanical properties in the online track. At the same time to ensure the suture, sewing thread also need the correct application, do this, should follow the following principles:
(1) compatibility with the fabric characteristics
The raw materials of the sewing thread and fabric of the same or similar, in order to ensure the unity of the shrinkage, heat resistance, wear resistance, durability, etc., avoid, the lining caused by the difference of shrinkage of appearance.
(2) in line with the clothing category
For special purpose clothing, should consider the special function of sewing thread, such as elastic clothing with elastic sewing thread, fire service needs to be heat resistant, flame retardant and waterproof treatment of sewing thread.
(3) coordination with the line trace
Different stitch used in different parts of a garment and sewing thread also shall furnish, change, such as sewing required leavening line or deformation of the line, double stitch should choose to extend the line, crotch seam, shoulder suture should be fast, deduction of the liner is required to wear