Some Introduction Of Polyester
Terylene is used in a wide range of applications and is widely used in manufacturing clothing fabrics and industrial products. Polyester has excellent formability. Polyester yarn or fabric after the formation of flat, fluffy shape or pleating, etc., in the use of many times after washing, still can remain unchanged.
Performance 1. High strength. The strength of short fibers was 2.6 ~ 5.7cN/dtex and that of high strength fibers was 5.6 ~ 8.0cN/dtex. Due to its low hygroscopicity, its wet and dry strength is basically the same. Impact strength is 4 times higher than nylon and 20 times higher than viscose fiber. 2. Good elasticity. The elasticity is similar to that of wool, and can be almost completely recovered at an elongation of 5-6%. Crease resistance is higher than other fibers, that is, the fabric does not crease, good dimensional stability. Elastic modulus is 22 ~ 141cN/dtex, 2 ~ 3 times higher than nylon. 3. Heat resistance and thermal stability are the best among synthetic fabrics. 4, polyester surface is smooth, the internal molecular arrangement is close. 5. Good wear resistance. Wear resistance is second only to wear resistance of the best nylon, than other natural fibers and synthetic fibers are better. 6. Good light resistance. Light resistance is second only to acrylic fiber. 7. Corrosion resistance. Resistant to bleaching agents, oxidants, hydrocarbons, ketones, petroleum products and inorganic acids. Resistant to dilute alkali, not afraid of mold, but hot alkali can make its decomposition. 8. Poor dyeing property, but good color fastness, not easy to fade.
Polyester varieties of the broad categories of varieties are short fiber, stretch silk, deformation silk, decorative filament, industrial filament and a variety of different fibers. Polyester staple fiber 1. According to the physical properties of distinction: high strength low stretch, strong in stretch, low strength, high modulus, with high strength and high modulus type 2. According to the requirements of processing after the distinction: cotton, wool, linen, silk type 3. According to the purpose to distinguish: clothing, xumian, decorative, industrial use 4. According to the function to distinguish: cationic dye, moisture absorption, flame retardant, non-ferrous, pilling resistance, antistatic 5. According to the fiber cross section to distinguish: silk, hollow yarn. Polyester filament 1. At the beginning of raw silk: undrawn yarn (conventional spinning) (UDY), half a preliminary orientation (medium speed spinning) (she), pre orientation (high speed spinning) (xiamen) wire, high orientation (ultra high speed spinning) (HOY) 2. The drawn yarn: drawn yarn (low speed wire drawing) (DY), FDY (spin-draw step method) (polyester FDY such), all silk (spinning step method) (FOY) 3. Textured yarn: regular textured yarn (DY) and draw textured yarn (DTY), air textured yarn (ATY).
There are many kinds of polyester fiber fabrics. In addition to weaving pure polyester fabric, there are many products blended or interwoven with various textile fibers, which make up for the deficiency of pure polyester fabric and give play to better wearability. At present, polyester fabric is developing towards the natural direction of synthetic fibers such as wool, silk, hemp and deerskin. 1. Polyester imitation silk fabric is a kind of polyester fabric with the appearance style of silk woven by polyester filament or short fiber yarns with circular and special-shaped sections. It has the advantages of low price, anti-wrinkle and non-ironing, and is quite popular with consumers. Common varieties are: polyester silk, polyester crepe, polyester satin, polyester georgette, polyester woven silk and so on. The elegance of these varieties have the silk fabric drape, smooth, soft, feast for the eyes, at the same time, and both polyester fabric crisp, wear-resisting, easy to wash, wash and wear, fly in the ointment is this kind of fabric to poor wet absorption, wearing not too cool, in order to overcome this shortcoming, now there are more new polyester fabrics, such as high moisture absorption polyester fabric is one of them. 2. Polyester wool-like fabric from polyester filament yarn such as polyester stretch yarn, polyester network or various profiled polyester yarns as raw materials, or with long long polyester staple fiber and viscose after long acrylic blended yarn or fabric woven with wool style, respectively called worsted wool-like fabric and long wool-like fabric, the price is lower than the same kind of wool fabric products. It not only has the feel of woolen cloth plump swelling, good elasticity characteristics, but also has polyester firm and durable, easy to wash and dry, flat and crisp, not easy to deformation, not easy to pilling, and other characteristics. Common varieties are: polyester elastic serge, polyester elastic gabardine, polyester elastic striped fancy suiting, polyester network silk worsted fabric, polyester viscose medium long fancy suiting, polyester nitrile hidden suiting and so on. 3. Polyester linen-like fabric is one of the most popular fabrics in the international clothing market at present. Plain weave or convex weave fabric is made of polyester or polyester/viscose strong twist yarn, which has the dry feel and appearance style of linen-like fabric. If thin copy hemp mo like, not only exterior is straightforward, feel dry, and wear comfortable, cool, accordingly, suit the making of summer shirt, skirt garment very much. 4. Deerskin imitation polyester fabric is one of the new polyester fabrics, with fine denier or ultra-fine denier polyester fiber as the raw material, after special finishing and processing on the fabric base cloth to form fine short nap of polyester suede fabric, known as deerskin imitation fabric, generally non-woven cloth, machine woven cloth, knitted cloth as the base cloth. It has the characteristics of soft texture, fine and plump fluffy, elastic, moist and firm and durable style. There are three kinds of common deer skins: high-grade, high-quality and ordinary. Suitable for women's clothes, senior dress, jacket, suit jacket, etc.
Development of polyester industry in China
Polyester is the world's largest production, the most widely used synthetic fiber varieties, polyester currently accounts for more than 60% of the world's synthetic fiber output. It is widely used in clothing, bedding, various decorative fabrics, special fabrics for national defense and military industry and other industrial fiber products, such as filter materials, insulation materials, tire cord, conveyor belt and so on. In recent years, with the continuous rapid growth of domestic economy and the continuous improvement of domestic consumption capacity, the demand for polyester staple fiber in domestic areas is also increasing. The production capacity of China's polyester series products is increasing at an alarming rate. With the rapid growth of polyester fiber production capacity, China is gradually developing into an important processing base for the world's polyester products. From January to November 2007, China's polyester fiber manufacturing industry achieved a cumulative industrial output value of 242,668,873 thousand yuan, an increase of 22.56% over the same period last year. The accumulated product sales revenue was 236,413,801 thousand yuan, an increase of 21.65% over the same period last year. The cumulative profit amounted to 4,987,999 yuan, an increase of 61.15% over the same period last year. From January to May 2008, China's polyester fiber manufacturing industry achieved a cumulative industrial output of 104,924,069 thousand yuan, an increase of 8.72% over the same period last year. The accumulated product sales revenue was 101,674,711 thousand yuan, an increase of 10.82% over the same period last year. The cumulative profit was 1,495,129 thousand yuan, down 19.96% from the same period last year. Polyester fiber is one of the most processed chemical fiber varieties among all textile fibers. It is of great importance to develop differentiated varieties, increase the added value of products, and improve the economic benefits of enterprises. Product differentiation is the development direction of polyester, and China's polyester fiber manufacturers are also along this direction. Therefore, polyester industry has great potential for development.