Thursday, 20 June, 2024

What are the characteristics of recycled polyester staple fiber

recycled polyester staple fiber features, hope to help you understand recycled polyester staple fiber.

1, 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 the low hygroscopic properties, the wet strength of recycled polyester staple fiber is almost the same as that of dry strength. The impact strength is 4 times higher than polyamide and 20 times higher than viscose fiber.

2, good light resistance. Light resistance is second only to acrylic fiber. recycled polyester staple fiber has better light resistance than acrylic fiber, and 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.

3, recycled polyester staple fiber has 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. recycled polyester staple fiber fabric has high strength and elastic resilience, so it is strong, durable, wrinkle-resistant and ironing free.

4, poor dyeing, but good color fastness, not easy to fade. recycled polyester staple fiber molecular chain has no specific dyeing groups, and the polarity is small, so it is difficult to dye, dye molecules are not easy to enter the fiber.

recycled polyester staple fiber

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

6, recycled polyester staple fiber has good wear resistance. The wear resistance is second only to the good wear resistance of nylon, better than other natural fibers and synthetic fibers.

7, 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. There are also strong acid and alkali resistance, anti-ultraviolet ability

8, good thermoplasticity, poor melting resistance. recycled polyester staple fiber has a smooth surface and tight molecular arrangement, so polyester is a better heat-resistant fabric in synthetic fiber fabric. It is thermoplastic and can be made into pleated skirts with long-lasting pleats. 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 contact with cigarette butts, sparks and so on.

9, poor moisture absorption, wearing a stuffy feeling, while easy to bring static electricity, dirt, affecting beauty and comfort. However, recycled polyester staple fiber is easy to dry after washing, and the wet strength almost does not decrease, no deformation, and has good washable performance.

Fabrics made from recycled polyester staple fiber have the advantages of good strength, smooth, easy to wash and dry, but have some disadvantages such as hard handling, poor touch, soft luster, poor air permeability and poor moisture absorption. If compared with silk fabric, the gap is larger, so it is necessary to imitate silk on the silk structure in order to eliminate the shortcomings of its poor performance.


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