Now when you go to the mall to buy clothes, when you look at the ingredients, many of them say: Polyester fiber. Then we commonly think that polyester fiber is polyester, in fact, there are many kinds of polyester fiber : not all it is called polyester!
PET polyester fiber
China will be polyethylene terephthalate content greater than 85% of the fiber is referred to as polyester, commonly known as “Indeed”. It has many foreign brand names, such as the United States “Dacron “, Japan’s “Tetoron “, the British “Terlenka “, the former Soviet Union’s “Lavsan ” and so on.
Cationic dye stainable polyester fiber (CDP )
In the PET molecular chain to introduce acidic groups that can combine cationic dyes, can be made with cationic dyes dyed modified polyester (CDP). CDP not only has good dyeing properties, but also with wool and other natural fibers in the same bath dyeing, to simplify the dyeing process for mixed fabrics, if blended with ordinary polyester, interweaving can also produce the same bath of different colors, greatly enriching the color of the fabric. Therefore, CDP becomes a modified polyester in the development of a faster species.
Normal temperature and pressure stainable polyester fiber (ECDP)
ECDP fiber than CDP and PET fiber feel softer, better performance. However, due to the lower bonding energy of the fourth monomer polyethylene glycol chain segment, the thermal stability of ECDP fibers is reduced, the strength loss of ECDP fibers at 180 ℃ ironing temperature of more than 30%. Therefore, the fabric made of ECDP fiber in the finishing and washing and ironing require extra attention.
PTT polyester fiber
PTT and PET and PBT belong to the same polyester family, the performance is similar. It has both polyester and nylon characteristics, it is easy to wash and dry , with good elasticity recovery and wrinkle resistance, and has a better stain resistance, sunlight resistance and feel. Compared with nylon, PTT fiber also has good abrasion resistance and tensile recovery, and has the characteristics of high elasticity and good fluffiness, which makes it more suitable for making carpets and other materials.
PBT polyester fiber
PBT fiber has the same characteristics as polyester, such as good strength, easy to wash and dry, dimensional stability, good conformal, etc. The main thing is that it has a long flexible part of the macromolecular chain, so it has a large elongation at break, good elasticity, little change in elasticity after heat, soft to the touch. And PBT fiber has better dyeing properties than polyester. In addition, PBT fiber has better anti-aging, chemical resistance and heat resistance. PBT fiber in engineering plastics, household appliances shells, machine parts have a wide range of uses.
PEN polyester fiber
PEN fiber spinning process is similar to polyester, the process flow is: slicing and drying → high-speed spinning → drafting. As the glass transition temperature of PEN fiber is higher , drafting process to change accordingly, It should use multiple drafting and improve the drafting temperature, so as not to slow down the molecular orientation and affect the quality of the fiber. Compared with conventional polyester, it has better mechanical and thermal properties, such as high strength, high modulus, good tensile properties, rigidity; good heat resistance, dimensional stability, not easy to deformation, good flame retardancy; chemical resistance and good hydrolysis resistance; UV resistance, aging resistance.
Moisture-conductive dry polyester filament
By changing the fiber cross-sectional shape to increase the space between single fibers, the increase in specific surface area and capillary effect to greatly improve its moisture-conductive properties and made of moisture-conductive dry polyester filament. The fiber fabric moisture conductivity and moisture diffusion performance is excellent, so it made of dry clothing, cool, comfortable, suitable for knitted sportswear, woven shirts, summer clothing fabrics, polyester socks, etc.
High-speed dehumidificationfour-channel
Four-channel , with excellent core absorption capacity, is made of hydrophobic synthetic fibers made of high moisture-conducting fibers. Four-channel can be highly sweaty skin sweat with core absorption guide to the fabric surface evaporation cooling. Studies have shown that the percentage of humidity removal after 30min cotton fiber is 52%, while the four-channel polyester fiber is 95%. This fiber is used in sportswear, military lightweight thermal underwear is particularly effective, can keep the skin dry and comfortable, and has excellent warmth and cold function.
Porous hollow section polyester fiber “WELLKEY”
WELLKEY is a polyester hollow fiber. From the fiber surface, there are many through to the hollow part of the fine pores, liquid water can penetrate from the fiber surface to the hollow part, this fiber structure to the maximum water absorption rate and water content as the goal. In the spinning process, a special micro-pore forming agent is co-blended and then dissolved to form this fiber structure. The fiber has excellent sweat-absorbing and quick-drying characteristics, and is mainly used as fabric for petticoats, tights, sportswear, shirts, training clothes, jackets and other garments, and also has a broad application prospect in the non-use field and medical and health field due to its advantages of water absorption and quick-dryin
