Spandex (elastic fiber) It has the best elasticity, the worst strength, poor moisture absorption, good light resistance, acid resistance, alkali resistance and wear resistance. Uses: Chloro fiber is widely used in underwear, female underwear, casual wear, sportswear, socks, pantyhose, bandages and other textile fields and medical fields. Spandex is a kind of high elastic fiber which is necessary for high performance clothes in pursuit of mobility and convenience. Spandex can stretch 5-7 times longer than the original, so it is comfortable to wear, soft to handle, and does not wrinkle, and can always maintain the original contour.

thirty-seven point five ® Technology is a patented technology developed by Cocona that uses body heat to evaporate moisture. It is mainly used in the development of functional fabrics. The human body is equivalent to a 24-hour continuous heating machine, and the main way to release heat is water evaporation, through which the human body can be kept at the most comfortable temperature. If these evaporated moisture cannot be removed from the clothes in time, it will continue to accumulate, making the microclimate between the body surface and the clothes very humid, making people feel uncomfortable and sticky. thirty-seven point five ® Technology can strengthen the natural cooling mechanism of the human body - the body secretes sweat to reduce body temperature, while 37.5 ® Technology can remove sweat from clothing's microclimate.

It is an artificial cellulose fiber, which is spun by solution method. As the solidification rate of the fiber core layer is inconsistent with that of the outer layer, the skin core structure is formed (it can be clearly seen from the cross-section slice). Viscose is the most hygroscopic among ordinary chemical fibers, with good dyeing property, good wearing comfort, poor elasticity, and poor strength and wear resistance in wet state. Therefore, it is not resistant to washing and has poor dimensional stability. Heavy weight, heavy fabric, alkali resistant and acid resistant.

Elastic yarn has high elongation and resilience. When it is fully stretched, it is like ordinary filament yarn; when it is fully relaxed, it is like bulk yarn. The vast majority of elastic yarns are made of thermoplastic filaments. After false twisting and heat setting, the filaments will produce permanent curls, but there is no entanglement between them. Knitted underwear made of them has a tight feeling

Polyester cotton blend spinning: cotton and staple fiber are mixed and spun according to different proportions. Generally, the polyester cotton blended yarn with high polyester ratio is referred to as T/C yarn (T represents polyester, C represents cotton), and the polyester cotton blended yarn with high cotton ratio is referred to as EVE yarn. The common blending ratio of Tie yarn is 65/35 (65% polyester, 35% cotton). The common blending proportion of EVE is 60/40 (60% cotton, 40% polyester), 55/45 (55% cotton, 45% polyester). Other blending proportions can also be determined according to customer needs.

Acrylic fiber is called artificial wool. It has the advantages of softness, bulkiness, easy dyeing, bright color, light resistance, anti-bacterial, and worm resistance. It can be pure spun or blended with natural fibers according to the requirements of different uses. Its textiles are widely used in clothing, decoration, industry and other fields. Polyacrylonitrile fiber can be blended with wool to form wool, or woven into blankets, carpets, etc. It can also be blended with cotton, man-made fibers, and other synthetic fibers to form various clothing materials and indoor articles. The expanded body processed by polyacrylonitrile fiber can be pure spun or blended with viscose fiber.

Staple yarn Product features: short fiber yarn for short. The yarn is spun from short carbon fiber, such as general pitch based carbon fiber, which is usually in the form of short fiber. Main applications: thermal insulation materials, antifriction materials, C/C composite parts, etc.

At first, the appearance of textured yarn was just to increase the bulkiness of fiber by changing the geometric properties of fiber materials, like cotton and fine wool, so that products have plump and warm properties. Through various deformation processes, filament yarn overcomes the shortcomings of filament yarn, has many characteristics of staple yarn (such as expansibility and warmth retention), reduces investment and cost, improves product quality and production efficiency, and expands the use of filament yarn. As early as the 1930s, Smith & Sons carpet company of the United States used stuffing box technology to improve the crimping performance of South American wool. In 1932, heberlein of Switzerland invented the deformation processing method of rayon yarn and obtained the first patent for the crimping deformation of rayon (Applied in 1932 and named nigrila, trade name) In the 1940s, with the industrial production and application of thermoplastic synthetic fibers (nylon and polyester), modified yarns developed rapidly. Because synthetic fiber is thermoplastic, its filament can change the macromolecular arrangement structure in the fiber through "deformation heat setting" under mechanical action, and control the heat setting process to obtain deformed yarn with ideal curling effect. In the 1950s, companies in Switzerland, the United States and Japan used the batch process of twisting, heat setting and untwisting polyamide filaments (classical method). This method can be carried out on any twisting equipment with a "steamer". Disadvantages: many processes, high cost and low productivity. Subsequently, celanise company of Britain proposed two-step deformation and one-step deformation processing method false twist deformation processing method. (false twist texturing), which was produced industrially in the 1950s and gradually replaced the classical three-step deformation processing method. It is characterized by short process, low cost and one-step completion. Polyamide textured yarn produced by Toray in Japan in 1951 by false twist texturing process, trade name: woolie nylon. In 1958, British nylon spinner company developed friction false twister and hoburn company developed the first friction false twister textured yarn machine. In 1959, the British Imperial Chemical Company produced false twist textured yarn (poly (acyl) with high bulkiness and low extensibility by using secondary heat setting (box). DuPont company of the United States pioneered the air modification processing method, mainly processing medium, coarse and special yarns to make decorative fabrics and carpets.