1. High strength, short fiber strength is 2.6~5.7cN/dtex, high strength fiber strength is 5.6~8.0cN/dtex;

2. The elasticity is good and close to that of wool. When the elongation is 5%~6%, it can almost recover;

3. Corrosion resistance, bleach, oxidant, 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;

4. 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;

5. It has good heat resistance. Polyester is a heat resistant fabric in synthetic fabrics, with thermoplasticity. It can be used to make pleated skirts, and the pleating time is long;

6. Good abrasion resistance, second only to good nylon, better than other natural fibers and synthetic fibers;

7. Good chemical properties, 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.