First, the difference between polyester and nylon

POLYESTER - Polyester fiber, also known as POLYESTER, is characterized by good permeability and moisture removal. There are also strong acid and alkali resistance, anti-ultraviolet ability. Nylon -- nylon is also called Nylon, polyamide fiber. The advantages are high strength, high wear resistance, high chemical resistance and good deformation resistance, anti-aging. The disadvantage is that it feels hard. Some of the more famous ones are PERTEX, CORDURA.

Second, how to distinguish in daily life?

Polyester imitation silk strong, bright luster, but not soft enough, with a flash effect, feel smooth, flat, good elasticity. Hold the silk tightly by hand and loosen without obvious crease. After wetting the warp and weft with water, it is not easy to tear. Nylon luster is dim, the surface seems to be coated with a layer of wax feeling, the color is not bright. Feel firm, hand pinch the fabric after release, crease, can slowly restore to the original state. Large fastness of warp and weft.

Performance of nylon: strong, good wear resistance, ranking first among all fibers. Its wear 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. The elasticity and elastic recovery of nylon fabric is very good, but it is easy to deform under small external force, so the fabric is easy to wrinkle during wearing. Poor ventilation, easy to produce static electricity.

The hygroscopic property of polyamide fabric is a better variety in synthetic fiber fabric, so the clothing made of polyamide fabric is more comfortable than polyester clothing. It has good resistance to decay and corrosion. Heat resistance and light resistance are not good enough, ironing temperature should be controlled below 140℃. Pay attention to the washing and maintenance conditions in the process of wearing, so as not to damage the fabric. Nylon fabric is a lightweight fabric, only listed in the synthetic fiber fabric after polypropylene, acrylic fabric, therefore, suitable for making mountaineering clothing, winter clothing and so on.

Polyester properties: high strength. The short fiber strength is 2.6 ~ 5.7cN/dtex, and the high strength fiber is 5.6 ~ 8.0cN/dtex. Due to its low hygroscopic properties, its wet strength is basically the same as its dry strength. The impact strength is 4 times higher than polyamide and 20 times higher than viscose fiber. Good elasticity. The elasticity is close to wool, and when it is extended by 5% to 6%, it can be almost completely restored. Wrinkle resistance is more than other fibers, that is, the fabric does not wrinkle, and the dimensional stability is good. The elastic modulus is 22 ~ 141cN/dtex, which is 2 ~ 3 times higher than polyamide fiber. Good water absorption. Good grindability. The wear resistance is second only to the best wear resistance of nylon, better than other natural fibers and synthetic fibers, light resistance is second only to acrylic fiber. Corrosion resistance. Resistant to bleaching agents, oxidants, hydrocarbons, ketones, petroleum products and inorganic acids. Resistant to dilute alkali, not afraid of mildew, but hot alkali can make it decompose. Poor staining.

Polyester fabric moisture absorption is poor, wearing a stuffy feeling, while easy to carry static electricity, dirt, affect the beauty and comfort. However, it is easy to dry after washing, and the wet strength is almost not decreased, no deformation, and has good washable performance. Polyester is the best heat resistant fabric in synthetic fabrics, melting point at 260 ° C, ironing temperature can be 180 ° C. Thermoplastic, can be made into pleated skirt, pleating lasting. At the same time, the melt resistance of polyester fabric is poor, and it is easy to form holes when it meets soot and Mars. Therefore, wear should try to avoid the contact of cigarette butts, sparks, etc. Polyester fabric has better light resistance, in addition to worse than acrylic fiber, its sun resistance is better than natural fiber fabric. Especially in the glass behind the sun resistance is very good, almost equal to acrylic fiber. Polyester fabric has good resistance to various chemicals. Acid, alkali to its degree of damage is not large, while not afraid of mold, not afraid of moth. Polyester fabric has good wrinkle resistance and shape retention, so it is suitable for making outerwear.