Difference between polyester and nylon

Polyester is different from nylon. Polyester - polyester fiber is also called POLYESTER, which is characterized by good air permeability and moisture removal. There is also a strong ability to resist acid, alkali and ultraviolet rays. Nylon --- Nylon, also known as polyamide fiber. The advantages are high strength, high abrasion resistance, high chemical resistance, good deformation resistance and aging resistance. The disadvantage is that the handle is hard. The famous ones are PERTEX. CORDURA II. How to distinguish them in daily life? Polyester silk like fabric has a strong and bright luster, but it is not soft enough. It has a shiny effect. It feels smooth, flat and elastic. There is no obvious crease when the silk surface is loosened after being squeezed tightly. The warp and weft are not easy to break after being stained with water. Nylon has a dull luster, and the surface seems to be coated with wax. The color is not bright. The handle is firm, and the fabric is loosened after being squeezed tightly, with creases, which can slowly restore the original state. High fastness of warp and weft yarns.

Performance of nylon: It has good strength and abrasion resistance, ranking first among all fibers. Its abrasion resistance is 10 times that of cotton fiber, 10 times that of dry viscose fiber and 140 times that of wet fiber. Therefore, its durability is excellent. Nylon fabric has excellent elasticity and elastic recovery, but it is easy to deform under small external force, so its fabric is easy to wrinkle during wearing. Poor ventilation, easy to generate static electricity.

The hygroscopicity of nylon fabric is better among synthetic fiber fabrics, so the clothes made of nylon are more comfortable than those made of polyester. It has good moth resistance and corrosion resistance. The heat resistance and light resistance are not good enough, and the ironing temperature should be controlled below 140 ℃. Pay attention to the washing and maintenance conditions during wearing and using to avoid damaging the fabric. Nylon fabric is a light fabric, which is only listed behind polypropylene and acrylic fabrics in synthetic fiber fabrics. Therefore, it is suitable for making mountaineering clothes, winter clothing, etc.

Polyester performance: high strength. The strength of short fiber is 2.6~5.7 cN/dtex, and that of high strength fiber is 5.6~8.0 cN/dtex. Due to its low moisture absorption, its wet strength is basically the same as its dry strength. The impact strength is 4 times higher than nylon and 20 times higher than viscose fiber. Good elasticity. The elasticity is close to that of wool. When the elongation is 5%~6%, it can almost recover completely. Wrinkle resistance is better than other fibers, that is, the fabric does not wrinkle and has good dimensional stability. The elastic modulus is 22~141cN/dtex, 2~3 times higher than nylon. Good water absorption. Good grinding performance. The abrasion resistance is only inferior to nylon with the best abrasion resistance, better than other natural fibers and synthetic fibers, and the light resistance is only inferior to acrylic fiber. Corrosion resistance. It is resistant to bleaching agents, oxidants, hydrocarbons, ketones, petroleum products and inorganic acids. It is resistant to dilute alkali and is not afraid of mold, but can be decomposed by hot alkali. Poor staining.

Polyester fabric has poor moisture absorption, and it feels stuffy and hot when worn. At the same time, it is easy to carry static electricity and dust, which affects the beauty and comfort. However, it is very easy to dry after washing, and the wet strength almost does not drop, does not deform, and has good washability. Polyester is the best heat resistant fabric among synthetic fabrics, with a melting point of 260 ℃ and an ironing temperature of 180 ℃. It has thermoplasticity and can be made into pleated skirts with lasting pleats. At the same time, the melting resistance of polyester fabric is poor, and it is easy to form holes when encountering soot, sparks, etc. Therefore, try to avoid cigarette butts and sparks when wearing. The light resistance of polyester fabric is better than that of acrylic fiber, and its light resistance is better than that of natural fiber fabric. Especially, the sun resistance behind the glass is very good, almost equal to that of acrylic fiber. Polyester fabric has good resistance to various chemicals. Acids and alkalis do not damage them to a great extent, and they are not afraid of mold and moth damage. Polyester fabric has good wrinkle resistance and shape retention, so it is suitable for making outerwear.