Brief introduction of PET plastic sheets
PET plastic sheets are the abbreviation of Polyethylene terephthalate sheet, the chemical formula is (C10H8O4)n, it is synthesized by the exchange of dimethyl terephthalate and ethylene glycol ester (or terephthalic acid and ethylene glycol esterification) to obtain p-benzene Dihydroxy ethyl dicarboxylate, and then subject it to polycondensation reaction. It is a crystalline saturated polyester. It is a milky white or light yellow, highly crystalline polymer with a smooth and shiny surface. It is a common resin in life and can be divided into APET, GAG, PETG, RPET, etc.
Advantages of PET plastic sheets used in plastic packaging industry
The advantages of Polyethylene Terephthalate as a material are that it is shatterproof, is non-reactive when in contact with food or water, and provides a high strength-to-weight ratio. Being lightweight also provides for cost savings when transporting products using PET packaging.
- High transparency: PET plastic sheets are highly transparent and can easily display the products in the package to customers.
- Easy to process: PET plastic sheets are easy to fold and process. For different packaging products, they can be made into different shapes according to their needs.
- Light weight: PET plastic sheets are light in weight, which can effectively reduce manual handling effort and leave a lot of cost for product transportation.
- Shatterproof: PET plastic sheets have very good toughness, so the packaging produced by PET is almost unbreakable, making it the first choice material for filling products and suitable for use in various environments, such as homes, supermarket shelves and hospitals , laboratories, laboratories and other professional environments. Office etc.
- Recyclable: PET plastic sheets are recyclable, which can effectively reduce the environmental pollution caused by plastics, and can be recycled and reused, which can effectively save merchants’ usage costs.
Application of PET plastic sheets used in plastic packaging industry
PET (Polyethylene Terephthalate) plastic sheets are commonly used in the plastic packaging industry. PET is a versatile and widely used polymer that is known for its transparency, strength, and lightweight properties. These characteristics make it suitable for various packaging applications.
Some common uses of PET plastic sheets in the packaging industry include:
- Bottles and Containers: PET plastic sheets are popular material for manufacturing bottles and containers for beverages, food and personal care products. Its transparency allows consumers to see the product inside, and its lightweight makes it easy to transport.
- Clamshell packaging: PET plastic sheets are often used to make clamshell packaging for items such as electronic products, toys, and consumer goods. Clamshell packaging provides a clear view of the product while protecting it from damage.
- Blister packaging: PET plastic sheets are also used in blister packaging, which is a packaging method in which the product is placed in a cavity, usually with a cardboard or foil backing. This type of packaging is commonly used for pharmaceuticals, electronics, and small consumer goods.
- Trays and Inserts: PET plastic sheets can be thermoformed to create trays and inserts for packaging fruits, vegetables and other perishable goods. The rigidity and clarity of the material make it suitable for displaying content.
- Thermoformed Packaging: PET plastic sheets are often thermoformed into various shapes to create customized packaging solutions for a variety of products.
PET plastic sheet has become the main material reason for the plastic packaging industry
1. The technical level of high-barrier multi-functional PET plastic sheet rolls continues to improve. Its soft plastic packaging materials have become a hot topic in recent years, including high anti-seepage, multi-functional cling film, aseptic packaging film, etc. As bag making and printing technology has reached a new level, it has entered the era of color revolution, which has promoted the development of soft plastic packaging products to a deeper and higher level.
2. The development of multi-layer co-extrusion technology has changed the product structure of functional films and containers. With the continuous improvement of environmental protection requirements, it is necessary to reduce the amount of waste as much as possible while meeting the packaging functions of PET plastic sheet rolls. Co-extruded packaging film has the advantages of low investment, low production cost, strong adaptability, easy operation, and no environmental pollution. Therefore, co-extrusion technology is developing rapidly around the world. Data show that co-extruded films in developed countries account for about 40% of all flexible plastic packaging films, while in my country it is only about 6%. The development of co-extruded packaging films will also change the product structure of multi-functional films, which are suitable for food packaging such as beverages, milk, and fresh meat.
3. PET plastic sheets for vegetable and fruit packaging have broad prospects. my country is the world’s largest fruit and vegetable production and sales country. However, about 30% of water is lost during storage, transportation and sales. Although different fruits have different physiological characteristics, water loss, discoloration, taste change, and rot are common problems. Therefore, in-depth research is needed to inhibit metabolic processes, reduce nutrient consumption, and maintain fruit flavor.
