Before discussing the difference between polyester and recycled polyester, we must first understand what polyester is and what is recycled polyester. Let Younifa take you to understand them one by one.

Polyester yarn is a variety of polyester fiber fabrics. There are many types of polyester fiber fabrics. In addition to weaving pure polyester fabrics, there are many products that are blended or interwoven with various textile fibers, which make up for the shortcomings of pure polyester fabrics and play a better role. good performance. At present, polyester fabrics are developing in the direction of synthetic fibers such as wool-like, silk-like, linen-like and deerskin-like. 1. Polyester imitation silk fabrics are made of polyester filaments or staple fiber yarns with circular and special-shaped cross-sections. Common varieties are: polyester silk, polyester crepe, polyester satin, polyester georgette, polyester interwoven silk, etc. These varieties have the elegant drape, smooth, soft and pleasing to the eyes of silk fabrics, and at the same time, they have the rigidity, wear resistance, easy washing and no ironing of polyester fabrics. In order to overcome this shortcoming, more new polyester fabrics have come out, such as high hygroscopic polyester fabric is one of them.

The recycled polyester fiber refers to the use of polyester fabric, waste polyester bottle flakes, spinning waste, foam material, pulp block as raw materials, waste bottle flakes are crushed and cleaned, the mixture of various materials is dried, melted and extruded, Spinning, winding, bunching, drafting, crimping (adding different oils during crimping according to customer requirements), relaxation and heat-setting, and cutting to form polyester fibers of different lengths.

The length is generally 32 to 102mm, and the fineness has many specifications from 1.5D to 20D. It belongs to the full use of renewable resources. It has a large market because of its low cost and good performance. There are many different varieties of recycled polyester staple fibers, such as ordinary fibers. , hollow fibers, triangular fibers, flame-retardant fibers, etc., are now generally used in the filling material industry of furniture and toys, bedding, clothing industry, needle-punched cotton industry, and stitched fabric industry.

Application of polyester yarn

Polyester fabric is a kind of chemical fiber clothing fabric used in daily life. Its big advantage is that it has good shape retention, so it is suitable for outerwear. Generally, polyester fabrics have the following characteristics: 1. Polyester fabrics have high strength and elastic recovery. Therefore, it is durable and non-iron. 2. Polyester fabrics have poor hygroscopicity, feel stuffy when wearing, and are easy to carry static electricity and stain dust, which affects the appearance. However, it is easy to dry after washing, and the wet strength hardly decreases, does not deform, and has good wash and wear performance. 3. Polyester is a synthetic fabric with good heat resistance and thermoplasticity. It can be made into pleated skirts with long pleats. At the same time, polyester fabric has poor melting resistance, and it is easy to form holes when encountering soot, sparks, etc. Therefore, try to avoid contact with cigarette butts, sparks, etc. when wearing. 4. The light fastness of polyester fabric is better, except that it is worse than acrylic fiber, its light fastness is better than that of fiber fabric. Especially the light fastness behind the glass is very good, almost on par with acrylic. 5. Polyester fabric has good resistance to various chemicals. Acids and alkalis are not very damaging to them, and they are not afraid of molds and insects.

Application of Recycled Polyester Yarn

Recycled polyester yarn is now generally used in the filler industry of furniture and toys, bedding, clothing industry, cotton industry, and stitched fabric industry. Semi-finished products are mainly tested for the viscosity of oil-free silk. Recycled polyester staple fibers are short fibers of several centimeters to ten centimeters. In particular, the sub-threads of polyester curtains for tires are close to nylon in performance. Polyester can also be used as electrical insulating material, acid-resistant filter cloth, medical industrial cloth, etc. Synthetic fibers are widely used in various fields of the national economy due to their high strength, wear resistance, acid resistance, alkali resistance, high temperature resistance, light weight, warmth retention, good electrical insulation and no fear of mildew. .

Therefore, in some production processes, recycled polyester is often chosen to replace polyester.