Polyester has excellent shape properties. Polyester yarn or fabric can be used for a long time after being washed several times in use. Polyester is the simplest of the three synthetic fibers, and the price is relatively cheap. In addition, it is durable, elastic, non-deformable, corrosion-resistant, insulated, crisp, easy to wash and dry, and so on. There are many types of polyester fiber fabrics. In addition to weaving pure polyester fabrics, there are many products blended or interwoven with various textile fibers.
Advantages of polyester fabric:
1. high strength. The short fiber strength is 2.6 to 5.7 cN/dtex, and the high strength fiber is 5.6 to 8.0 cN/dtex. Due to its low hygroscopicity, its wet strength is essentially the same as the dry strength. The impact strength is 4 times higher than that of nylon and 20 times higher than viscose.
2. Good elasticity. The elasticity is close to that of wool, and when it is stretched by 5% to 6%, it can be almost completely recovered. The wrinkle resistance is superior to other fibers, that is, the fabric is not wrinkled, and the dimensional stability is good. The modulus of elasticity is 22 to 141 cN/dtex, which is 2 to 3 times higher than that of nylon.
3. The heat-resistant polyester is produced by a melt spinning method, and the formed fiber can be further heated and melted, and is a thermoplastic fiber. Polyester has a higher melting point and a smaller specific heat and thermal conductivity, so the heat resistance and thermal insulation of polyester fiber are higher. It is the best among synthetic fibers.
4. The surface of the polyester is smooth and the internal molecules are closely packed.
5. Good wear resistance. Wear resistance is second only to nylon with the best abrasion resistance, better than other natural and synthetic fibers.
6. Good light resistance. Lightfastness is second only to acrylic.
7. preservative. It is resistant to bleaches, oxidants, hydrocarbons, ketones, petroleum products and inorganic acids. Resistant to alkali, not afraid of mildew, and strong acid and alkali resistance, UV resistance
8. The color fastness is good and it is not easy to fade.
9. The fabric woven from ordinary polyester filament has the advantages of good strength, smoothness, easy washing and quick drying.
Disadvantages of polyester fabric:
The dyeing property is poor, the hand feel is hard, the touch is poor, the gloss is not soft, the gas permeability and the moisture absorption are poor, and the hot alkali can decompose it.
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