Is the bag quality of polyester staple fiber good and what are the characteristics?
The bag strength of polyester staple fiber is high, and its impact strength is 4 times higher than that of cotton fiber and 20 times higher than that of viscose fiber. Good elasticity, close to wool, polyester has a higher melting point, better heat resistance, good abrasion resistance, good light resistance and corrosion resistance.
Look at the warp and weft, look at the grade, from all aspects of the fabric, the quality of the first-class knitted polyester fabric is naturally better than other grades. The appearance of the fabric is closely related to the fabric structure. When purchasing knitted polyester fabrics, the fewer defects on the fabric, the better. Except for foreign products, there should be no serious defects that affect the wear.
Appearance performance According to the appearance and performance requirements of the product, through different processing, polyester can imitate the feel and appearance of silk, cotton, hemp, wool and other fibers. Polyester has high elasticity and resilience, the fabric is stiff, not easy to wrinkle, and has good shape retention. It can maintain its original shape during processing and use, and it can make polyester garments form long-lasting pleats through heat setting.
Comfortable performance Polyester has poor moisture absorption, low moisture regain, and is not easy to dye. Special dyes, dyeing methods or equipment are required. Due to poor hygroscopicity and thermal conductivity, it is stuffy and airtight, easy to accumulate static electricity, and easy to absorb dust.
Durability and processing and maintenance performance Polyester has high strength, 4 times that of nylon and 20 times that of viscose. Polyester has good extensibility and abrasion resistance, and the product is strong and durable. Its products are machine washable, have small shrinkage, are easy to wash and dry, and have good washability. Warm water should be used for washing and drying at medium temperature. If the drying temperature is too high, the blank t-shirt will cause the fabric to produce wrinkles that are not easy to remove. Polyester is relatively stable to general chemical reagents, acid-resistant, but not resistant to long-term high-temperature treatment with concentrated alkali. After the polyester is treated with lye, the surface is easily corroded, the fiber becomes thinner, the weight is reduced, the hand feels better, the luster is elegant, and it has the style of silk. This processing method is called the alkali reduction treatment of polyester, which is similar to silk. One of the main methods.
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