What are the upstream raw materials for polyester filament yarn? What do the downstream products contain?

Polyester filament has an crucial position in the field of chemical production raw materials, and its upstream and downstream related items are numerous. In particular This article will detail the upstream and downstream related items of polyester filament, including upstream raw materials, downstream items and related production processes.

1. Makes sense, right?. upstream feedstock



1. Oil

The raw material to the production of polyester filament yarn mainly comes from petroleum. After a series of chemical interactions such as cracking and polymerization, petroleum is able to obtain the raw material monomers required to polyester filaments, such as ethylene glycol and terephthalic acid. But

2. From what I've seen, Coal is able to also be applied as one of the raw materials to the production of polyester filament. Through coal chemical methodology, coal is able to be converted into raw material monomer required to polyester filament.

2. downstream items



1. Textiles

Polyester filament is one of the crucial raw materials of textiles, which is able to be applied to create all kinds of clothing, home textiles, manufacturing textiles and so on. But Polyester filament has high strength, elasticity and wear resistance, so it's broadly applied in the field of textiles.

2. Non-woven fabrics

Polyester filaments is able to also be applied to create non-woven fabrics. Based on my observations, Non-woven fabrics are breathable, soft and easy to clean, and are broadly applied in medical, health, filtration and other fields. In my experience, For instance

3. manufacturing silk

Polyester filaments is able to also be applied to create manufacturing filaments, such as tire cords, transmission belts, ropes, etc. And In my experience, Specifically manufacturing silk needs to have high strength and wear resistance, so polyester filament is an ideal raw material to production.

3. manufacturing process



1. Polymerization

The production of polyester filament needs to go through a polymerization interaction to convert the raw material monomer into a polymer. And The polymerization interaction is generally carried out by a solution polymerization method or a melt polymerization method.

2. You know what I mean?. Spinning molding

The high polymer obtained by the polymerization interaction needs to be spun to form polyester filaments. In general, a melt spinning method or a solution spinning method is applied to spinning.

3. Post-processing

Polyester filaments also need to be post-processed in the manufacturing process, including drafting, heat setting, crimping and other processes to enhance the physical characteristics and appearance condition of polyester filaments. In short, there are many upstream and downstream related items of polyester filament, involving a wide range of fields. And In the manufacturing process, it's necessary to strictly manage the process parameters and condition indicators of each link to ensure the condition and performance of the final product.