Are you wondering what is polyester chips? What kind of material are they? What are their uses and advantages? If you are interested in these questions, then please continue reading this blog post, I will demystify polyester chips for you.
What are polyester chips?
Polyester chips, also known as PET chips or polyethylene terephthalate chips, are the most common thermoplastic resins in the polyester family of chemicals. They are the basis for many types of plastics and polymers. According to different processing methods, polyester chips can exist in two forms:
– Amorphous (transparent) form, often called bright or super bright slices.
– Semi-crystalline form, commonly called semi-matte slices.
Polyester chips are made from purified terephthalic acid (PTA) and ethylene glycol (EG). Polyester chips used in the textile industry are also called fiber-grade PET chips, filament-grade PET chips or textile-grade PET chips. In the textile industry, these chips are used to produce polyester filaments and staple fibers, such as POY, FDY, etc.
https://www.yarnsandfibers.com/textile-resources/synthetic-fibers/polyester/polyester-production-raw-materials/what-are-polyester-chips/ What are the uses and advantages of polyester chips?
Polyester chips can be used to produce various polyester products, such as:
– Polyester Filament: This is polyester raw yarn obtained directly from polyester chips or directly from PTA or EG through the spinning process. They are mainly used to make textured synthetic yarns.
– Polyester Staple Fiber: This is a short length of polyester fiber obtained by cutting or stretching polyester filament. They are mainly used to make cotton-type chemical fibers.
– Polyester bottle grade chips: This is the polyester material used to produce plastic containers such as water bottles, oil bottles, carbonated beverage bottles, etc. They have good clarity, strength and chemical resistance.
– Polyester film grade chips: This is a polyester material used in the production of various films and packaging materials. They have good stretch resistance, heat resistance and oxidation resistance.
Polyester chips have the following advantages:
– Durability: Polyester chips have high strength, high modulus and high abrasion resistance, which can withstand long-term use and external influences.
– Ease of dyeing: Polyester slices can be dyed by solution dyeing or particle dyeing, which can show vivid and long-lasting colors.
– Environmental protection: Polyester chips can reduce resource waste and environmental pollution through recycling and regeneration, and are a sustainable material.
– Economical: The production cost of polyester chips is relatively low, which can provide consumers with cost-effective products.
How to choose the right polyester chips?
The quality and performance of polyester chips depends on its production process and the quality of raw materials. Therefore, when choosing polyester chips, you need to pay attention to the following aspects:
– Intrinsic Viscosity (IV): This is an important index to measure the molecular weight of polyester chips, which affects the strength, elasticity and heat resistance of polyester products. Generally speaking, the higher the intrinsic viscosity, the better the performance of the polyester product, but the more difficult it is to process.
– Color value: This is an important index to measure the color of polyester chips, which affects the appearance and aesthetics of polyester products. Generally speaking, the lower the color value, the more transparent the polyester slice and the easier it is to dye.
– Carboxyl end group (COOH): This is an important index to measure the number of carboxyl groups at the end of the polyester slice molecular chain, which affects the thermal stability and dyeability of polyester products. Generally speaking, the fewer carboxyl end groups, the more stable the polyester product and the less likely it is to turn yellow.
– DEG content: This is an important indicator to measure the amount of diethylene glycol (DEG) contained in polyester chips, which affects the water absorption and dyeability of polyester products. Generally speaking, the lower the DEG content, the drier and less wrinkled the polyester product will be.
In addition to the above aspects, it is also necessary to choose the appropriate type and specification of polyester chips according to different uses and requirements. For example, if you want to produce water bottles or oil bottles, you need to choose bottle-grade polyester chips, and pay attention to its acetaldehyde content, density, melting point and other parameters. If you want to produce clothing or household items, you need to choose textile-grade polyester chips and pay attention to parameters such as gloss, TiO2 content, ash content, etc.
If you want to know more about polyester chips, you can click the following links, https://modipolyester.com/contact-us/or leave me a message in the comment area. I hope this blog post was helpful to you. Thank you for reading! 😊
