PTT, PBT polyester fiber is mainly used in areas such as jeans, swimwear, sportswear, body suit and so on, which have high elasticity requirements. From Europe and the United States, into China, after 10 years, self-contained; soft and flexible integration, stability and durability of both, excellent stain and chlorine resistance, shape memory and biological low-carbon supplement. PTT, PBT polyester fiber is a magician flexible regulation, an example of China's fiber product development. PTT, PBT polyester fiber combines the flexibility and flexibility of nylon, fluffy acrylic, polyester stain resistance, and has excellent dyeing properties, comfortable feel, with these excellent features, PTT, PBT polyester fiber In the field of chemical fiber is unique. PTT, PBT polyester fiber by virtue of its excellent performance has been the concern and is widely used in various fields. Its soft feel and stretch-recovery properties make it widely used in bathing suits, pajamas, underwear and women's tights to meet the demands of fiber elasticity in these areas. Its excellent dyeing performance, colorful, high color fastness, in sportswear, jackets, sweaters, hosiery fibers stand out. Its anti-fouling ability and recyclability make it widely used in curtains, bed bedding, mosquito nets, sofa covers, carpets, tablecloths, toys, car interiors and the like. Therefore, PBT polyester fiber is also called "new carpet material" . PBT excellent mechanical properties PBT is a high purity terephthalic acid (PTA) and 1,4-butanediol esterification, condensation polymer. The molecular structure of PBT contains both the same aromatic ring as the polyester and the longer methine segments the same as nylon, so it combines the excellent mechanical properties of polyester with the softness and abrasion resistance of nylon. Its dyeability and coloring performance than polyester and nylon, can be used without disperse dyes directly dye boiling at atmospheric pressure, bright color dyed fiber, color fastness and chlorine resistance. PBT has high rigidity, fiber has excellent bulk and curl value. PBT high surface hardness, also has excellent shape retention in wet conditions. PBT main chain structure has a longer methylene chain, so its glass transition temperature and melting point are lower than PET, but due to PBT has a strong crystalline properties, the crystallization rate of PET faster than 10 times, therefore, the production of Process with PET slices similar to the drying process, the slices will not be bonded. PBT has a lower critical surface tension and is therefore more resistant to fouling. Young's modulus of PBT is lower than that of PET, which is similar to PA, so its fiber and product feel soft and the fiber is easy to curl. PBT has good durability, dimensional stability and elasticity. PBT fiber and its products feel soft, hygroscopicity, abrasion resistance and fiber curl, tensile elasticity and compression elasticity is excellent, the elastic recovery rate is better than polyester. In wet and dry conditions have a special scalability, and flexibility from the ambient temperature changes, the price is much lower than the spandex fiber. PBT fiber has good chemical resistance and light resistance, heat resistance. At higher temperatures and prolonged sunlight, PBT intensity changes very little. PTT chip monopoly was broken as a new type of fiber, PTT fiber is made by the condensation of phthalic acid (PTA) and 1,3-propanediol (PDO) in the system. Because the chemical structure of PTT and PET polyester fiber is different, so both performance is different. PTT has a glass transition temperature of 45 to 65 degrees Celsius and PTT has a lower melting point than PET and is comparable to PBT, so PTT has higher latitude for fiber processing and is more competitive in terms of energy savings and process control. As early as 1941, PTT has been successfully developed, but because of its raw material PDO expensive, the production cost is too high, failed to carry out industrial production and was shelved for a long time. Since the 1990s, with the successful development of new processes for the production of PDO, this innovative fiber has once again entered the field of vision. PTT has great market potential in the fields of taking textiles such as stretch swimsuits and sportswear, as well as non-woven fabrics such as medical and hygiene products. In recent years, with Japan Asahi Kasei, SK Chemical Korea, Italy Miroglio, France Setilia, Spain Antex and other well-known companies have set foot in PTT fiber field, PTT fiber into an unprecedented boom of research and development. Sheng Hong Technology Co., Ltd. Jiangsu, the relevant person in charge told reporters that its wholly owned subsidiary - Jiangsu Zhongbie Technology Development Co., Ltd. from 2008 PTT polymerization technology research and development. At present, we have made significant technological breakthroughs and successfully completed the first PTT continuous polymerization plant of 30,000 tons / year in China. The plant was put into operation in June 2011. It successfully produced a PTT chip with independent intellectual property rights of over 10,000 Ton. In response to DuPont's PTT polyester chips in the spinning process problems, Sheng Hong polyester synthesis technology has been effectively improved. The product quality is obviously improved, especially in the suppression of thermal degradation and thermo-oxidative degradation during spinning, and has achieved good results. The spinning stability of the product is high, the molecular weight distribution is narrow, the melt has good fluidity, and the fiber reaches the same breaking strength. The intrinsic viscosity of the polyester chip is the lowest in the world at present. The quality of the PTT slice reaches the overall level of the Shell product, Shell, the overall quality was significantly higher than DuPont products. The official said the biological PDO project under construction will be put into operation in 2013. After the company achieved a breakthrough in PTT polyester synthesis technology, the cost of the company's PTT polyester products was yuan / ton, significantly lower than the current DuPont The company 21500 yuan / ton price. This makes PTT polyester fiber prices dropped dramatically, greatly open the field of use of PTT fibers, the enterprises and our country's chemical fiber industry PTT polyester fiber in the field of access to a huge competitive edge. At the same time, the relevant person in charge of Jiangsu Shenghong Technology shares also said that although the company's engineering and technical personnel in the test process has been on the engineering design problems that have been perfected, but constraints PTT industry chain is the core issue of high-quality PDO The synthesis of these issues have yet to be further studied and resolved. PTT, PBT weaving different PTT high-quality memory fabric weaving generally used air-jet loom weaving. Weaving process strictly control the twisting machine spindle tension fluctuations to prevent PTT polyester fiber under the action of processing tension passive tensile. Twisting process should pay attention to the difference between the inner and outer heating temperature. Warping process to control tension, to avoid uneven tension caused by excessive stretching caused by uneven dyeing. Sizing process in principle, the use of low temperature, low-tension sizing, low-temperature slow drying, strict control of the slurry and drying temperature. PTT fabrics need to go through the predetermined type, to minimize the Liu, Wei stalls, blisters and other issues in order to ensure the fabric flatness. Hot and humid finishing generally use overflow dyeing machine, soaping to strengthen the wax, to avoid dyeing phenomenon. Due to different manufacturers of two-component fiber cross-section and the proportion of different components, the choice of bicomponent fiber to be woven with the elastic design of the fabric to match the style of the design requirements of the fabric. The production process should take full account of the arrangement of fiber and warp and weft tightness, fabric finishing to keep the PTT component of the two components fully shrink, so that fluffy yarn and fabric structure, as far as possible to reduce the fabric finishing process tension. PBT polyester fiber can be used to produce the original textile processing equipment, weft elastic fabric need to use a wide loom. In order to be able to use PBT fibers in the warp direction, the sizing process requires a relatively low tension to fully accommodate the meridional elasticity. In the knitting process can be used directly as elastic yarn. The double rib knitting method can be used to make all kinds of PBT highly elastic fabrics with suitable stitch density and yarn count. During the weaving process, the optimal configuration of the coil length and tension is needed. PBT polyester fabric can be dyed using disperse dyes, the lower the glass transition temperature, boiling can be atmospheric pressure. In order to obtain a highly elastic textile, it is necessary to heat-set the PBT fabric at a nominal temperature, to final heat-set the fabric at a temperature lower than or equal to the pre-heat setting. When fixing the fabric size, it is necessary to control the tension applied to the fabric. PTT, PBT major representatives of manufacturers of polyester fiber manufacturers Shenghong Technology Co., Ltd. Jiangsu radius of Chemical Fiber Co., Ltd. Jiangsu Eagle Cheung Chemical Fiber Co., Ltd. Jiangsu Xinmin Textile Technology Co., Ltd. Quanzhou Haitian Materials Technology Co., Ltd. Jiangsu Longjie Special Fiber Co., Ltd. Zhangjiagang Bonded Zone Yangtze River Plastic Co., Ltd. Jiangsu and the new material Co., Ltd. Changzhou nylon plant Yizheng Chemical Fiber Co., Ltd.
Raw material is purchased from Lenzing Group,
Smooth and Glossy; Wear-resusting; Dyed well; Environmental;Skin-friendly
Lenzing series,Viscose Fiber,Spun Yarn,high quality
Nignxia Hengfeng Textile Technology Co., Ltd. , https://www.hffiberyarn.com