Polyester fabric is one of many fabrics, and it is also a fabric that is very popular among people nowadays. Today we will learn about the characteristics of polyester and the advantages and disadvantages of polyester fabrics!

Polyester is an important variety of synthetic fibers and the trade name of polyester fiber. Polyester fabric is one of many fabrics and is also very popular among people nowadays. of a fabric.

Common characteristics of polyester

1. High strength. The strength of short fiber is 2.6~5.7cN/dtex, and the strength of high-strength fiber is 5.6~8.0cN/dtex. Due to its low hygroscopicity, its wet strength is basically the same as its dry strength. The impact resistance is 4 times higher than nylon and 20 times higher than viscose fiber.

2 Good elasticity. The elasticity is close to that of hair, and it can almost completely recover when stretched by 5% to 6%. The wrinkle resistance is higher than that of other fibers, that is, the fabric does not wrinkle and has good stability when measuring. The elastic modulus is 22 ~ 141cN/dtex, which is 2 ~ 3 times higher than nylon. Polyester fabrics have high strength and elastic recovery capabilities, so they are durable, wrinkle-resistant and require no ironing.

3. Heat-resistant polyester is made through melt spinning. The formed fibers can be heated and melted again, which is a thermoplastic fiber. The melting point of polyester is relatively high, but the specific heat capacity and thermal conductivity are small, so the heat resistance and insulation of polyester fiber are higher. It is the best among synthetic fibers.

4 It has good thermoplasticity and poor melt resistance. Due to the smooth surface of polyester and the tight arrangement of internal molecules, polyester is the most heat-resistant fabric among synthetic fabrics. It is thermoplastic and can be made into pleated skirts with long-lasting pleats. At the same time, polyester fabric has poor melt resistance and can easily form holes when exposed to soot, sparks, etc. Therefore, you should try to avoid contact with cigarette butts, sparks, etc. when wearing it.

5. Good wear resistance. The wear resistance is second only to nylon, which has the best wear resistance, and is better than other natural fibers and synthetic fibers.

6. Good light resistance. Lightfastness is second only to acrylic. Polyester fabrics have better light resistance. In addition to being worse than acrylic fibers, their light resistance is better than natural fiber fabrics. Especially the light fastness behind glass is very good, almost as good as acrylic.

7. Corrosion resistance. Resistant to bleach, oxidants, hydrocarbons, ketones, petroleum products and inorganic acids. Resistant to dilute alkali and not afraid of mold, but hot alkali can cause it to decompose. It also has strong acid and alkali resistance and UV resistance.

8. The dyeability is poor, the color fastness is good, and it is not easy to fade. Because there are no specific dyeing groups on the polyester molecular chain and the polarity is small, it is difficult to dye, the dyeability is poor, and the dye molecules cannot easily enter the fiber.

9. It has poor hygroscopicity and feels stuffy when worn. It is also easily charged with static electricity and contaminated with dust, affecting its appearance and comfort. However, it dries very easily after washing, has almost no drop in wet strength, is shapeless, and has good washable and wearable properties.

Advantages of polyester fabric

1. Strong hygroscopicity: fiber strength is very high, And because the hygroscopicity of the fiber is relatively low, the wet strength and dry strength of the fabric are basically the same, so the impact strength of the fabric is naturally very high.

2. Excellent elasticity: The elasticity of the fabric is close to that of wool. When the fabric is deformed by force, it can quickly return to its original shape.

3. Good wrinkle resistance: The fabric is also very wrinkle-resistant. The fabric made of this fabric is not easy to wrinkle and has very good dimensional stability. good.

4. Durable: The fabric has good heat resistance, strong light resistance, good thermoplasticity, and can be made into products that are good for various chemicals and are durable. Durable and long service life.

Disadvantages of polyester fabric

1. Poor dyeability: The dyeability of the fabric is not very good Well, compared to other fabrics, it is more difficult to color when made into clothing or fabrics, so that the color of the finished product is not as bright as expected.

2. Poor hand feel: The fabric feels relatively hard and has a poor tactile feel when touched, compared to pure cotton or silk. The fabric and feel are really very different.

3. The contrast effect is poor: in terms of luster, the fabric is not that soft, and the breathability and moisture absorption of the fabric are not good, so there is no actual effect. Other fabrics are so good.