Understanding and application of the sewing thread
The sewing thread is the main line type of material used to suture a variety of clothing materials, both practical and decorative dual function. The quality of sewing thread, not only affects the efficiency of sewing, and the impact of sewn clothing and appearance quality of the products and processing costs. It is necessary to understand the relevant knowledge of sewing thread.
A. Classification and characteristics of sewing thread
The sewing thread is the most commonly used classification is the classification of raw materials, including natural fiber sewing thread, sewing thread of synthetic fibers and mixed sewing thread three categories.
(1) natural fiber sewing thread
a cotton sewing thread: cotton fiber as raw material by refining bleaching, sizing, waxing procedure made of sewing thread. High strength, good heat resistance, suitable for high-speed sewing and durable press, the drawback is that the flexibility and wear resistance. It can be divided into no light (or cords), silk and light and the light of wax. Cotton sutures for sewing of cotton fabric, leather and high temperature ironing clothes.
silk lines: filament wire made of natural silk or silk cord, excellent luster, strength, elasticity and wear resistance are better than cotton, suitable for sewing all kinds of silk clothing, high-grade woolen clothing, fur and leather clothing. Ancient China commonly used silk embroidery thread to embroider beautifully decorated embroidery.
⑵ synthetic fiber sewing thread
a polyester sewing thread: sewing lines, made of polyester filament or staple fiber as raw material. With high strength, good elasticity, wear resistance, low shrinkage, good chemical stability characteristics, mainly for sewing denim, sportswear, leather products, wool and uniforms, etc. It should be noted that the low melting point polyester suture is easy to melt in the high-speed sewing, plug the eye of a needle, resulting in suture breakage, it is not suitable for the clothing of the suture is too high speed.
(b) nylon sewing thread: nylon sewing thread made from pure nylon multifilament made of sub-filament line, staple fiber line and the elastic deformation of the line three kinds of main varieties of nylon filament line. Its advantage is that the strength and elongation [MSOffice3 good elasticity, fracture length is higher than the cotton three times to the same specifications, making it suitable for sewing chemical fiber, wool fabric, leather and elastic clothing. Greater advantage of nylon sewing thread is the development of transparent sewing thread, this line is transparent, and better color rendering, thus reducing and resolving the difficulties of sewing wiring and broad development prospects, but limited to the stiffness of the transparent line is too , the intensity is too low, trace easy to float at the surface of the fabric, together with its high temperature, the sewing speed is not too high, now mainly used as applique, sewing pile side, but not for the seam.
c PVA sewing thread: made from polyvinyl alcohol fiber, its high strength, smooth trace is mainly used for sewing thick canvas, furniture, cloth, labor supplies.
(d) acrylic sewing thread: made from acrylic fibers, mainly used as a decorative cord and embroidery thread, yarn twist is low, dyed bright.
(3) mixed sewing thread
a polyester / cotton sewing thread: 65% polyester and 35% cotton blended. Defects of both the advantages of both polyester and cotton, can guarantee the strength, abrasion resistance, shrinkage of the requirements, but also overcome the not heat-resistant polyester, high-speed sewing adapt. For cotton, polyester / cotton and other types of clothing.
b cored sewing thread: to filament wire, the outside coated natural fiber obtained sewing thread. Its strength depends on the wire, wear and heat depends on the outsourcing of yarn. Therefore, cored sewing thread and the need for high-speed sewing high strength stitch of clothing. In addition, the sewing thread can also be divided into roll form coil, line pipe, bobbins, thread, wire ball, use is divided into a line of sewing, embroidery, wire, industrial wire, not go into details here.
Two. The quality and application of the sewing thread
The composite indicator to assess the sewing thread quality can sew. Sewability under specified conditions, sewing thread, sewing and form a good stitch, and track online to maintain the ability of certain mechanical properties. Can sew the pros and cons, will the clothing production efficiency, sewing quality and wearability have a direct impact. In accordance with the provisions of the national standards, the classification of sewing thread for the first-class product, second-class goods and substandard goods. In order to make the best seam in the garment processing sewing thread, sewing satisfactory, correct selection and application of sewing thread is very important. The correct application of the sewing thread, should follow the following principles:
(1) and fabric characteristics, compatibility: the same or similar raw materials of sewing thread and fabric, in order to ensure a unified shrinkage, heat resistance, wear resistance, durability, etc., to avoid the line, the difference between the fabric and appearance of shrinkage.
⑵ and apparel categories: clothing for special purposes should take into account the special features of the sewing thread, elastic sewing thread, such as elastic garments required, fire service required by the heat-resistant, flame retardant and waterproofing sewing thread.
(3) with the trace form coordination: clothing different parts of the line used to trace different sewing thread should be with its change package, such as sewing required the bulk of the line or deformation of the wire, the wire traces should choose an extension line, crotch seam shoulder stitching should be strong in the deduction you need to wear eyeliner.
⑷ quality and price of unity: the quality and price of the sewing thread should be unity and clothing grade, high-end clothing with good quality, high price of sewing thread, and low-end clothing with the quality, affordable sewing thread. General, the signs of the sewing thread are marked with the level of sewing thread, the use of raw materials, yarn fineness, help us rational selection and use of sewing thread. The sewing thread signs usually include the four elements (in order): the form of yarn thickness, color, raw materials, processing methods can be used "60/2X3 White polyester line," said.| Updated:2012.02.07 Source: Clicks:2368
