First. Different Properties
1. The strength of regenerated polyester fiber is poor.
2. The strength of polyester fiber is relatively good.
Second, different raw materials
1, recycled polyester is recycled materials (PET bottle chips, foam, etc.) regranulation, and then drawing into fiber.
2. Polyester fiber is made from chemical raw material PTA and Meg by polyester drawing.
The recycled polyester staple fiber is made of polyester cloth, waste polyester bottle piece, spinning waste silk, bubble material and pulp block as raw materials, waste bottle piece is crushed and cleaned, the mixture of various materials is dried, melted and extruded, and spun, winding, bunching, drawing, crimp (adding different finishes to crimp according to customer’s requirements) , relaxation and heat setting, forming different lengths of pet staple fiber after cutting.
Recycled polyester and common polyester are two different kinds of polyester fibers, the main difference between them lies in the production of raw materials and production process. Recycled polyester is made from recycled polyester waste, processed by physical or chemical methods, while ordinary polyester is made from chemical substances such as fossil fuels. The production of recycled polyester is more environmentally friendly and energy-efficient than conventional polyester, and the process of making recycled polyester is more complex, so the price will be slightly higher. The regenerated polyester is characterized by good wear resistance and air permeability, as well as good flexibility and durability. In a word, both regenerated polyester and common polyester are polyester fibers, but the production process of regenerated polyester is more environmentally friendly and the products are of higher quality.
