What is PET heat shrinkable film? -Film supplier

by:POLYVA     2021-11-09
Polyester heat shrinkable film is a new type of heat shrinkable packaging material. Because it is easy to recycle, non-toxic, odorless, good mechanical properties, especially in line with environmental protection, polyester (PET) has become an ideal substitute for polyvinyl chloride (PVC) heat shrinkable film in developed countries. However, ordinary polyester is a crystalline polymer, and ordinary PET film can only obtain a heat shrinkage rate of less than 30% after special processing. To obtain a polyester film with a higher heat shrinkage rate, it must also be modified. That is to say, in order to prepare a polyester film with a high heat shrinkage rate, it is necessary to copolymerize and modify ordinary polyester, ie, polyethylene terephthalate. The highest heat shrinkage rate of the PET film modified by copolymerization can be as high as 70% or more. The characteristics of heat shrinkable polyester film: it is stable at room temperature, shrinks when heated (above the glass transition temperature), and heat shrinks more than 70% in one direction. Advantages: ① Body-fitting and transparent, reflecting the image of the product. ②Tightly tighten the packaging, good anti-scattering performance. ③Prevent rain, moisture, and mildew. ④ No recovery, with a certain anti-counterfeiting function. Heat-shrinkable polyester film is often used in the convenience food, beverage market, electronic appliances, and metal products. In particular, shrink labels are the most important application areas. Because with the rapid development of PET beverage bottles, beverage bottles such as cola, sprite, and various juices require PET heat shrinkable film to be matched with heat seal labels. They belong to the polyester category and are environmentally friendly materials that are easy to recycle and regenerate. use. In addition to being used as shrink labels, heat-shrinkable polyester films have also begun to be used in outer packaging of daily commodities in recent years. Because it can not only protect the packaged items from shock, rain, moisture, and rust, but also make the product win users with its beautifully printed outer packaging. At the same time, it can well show the good image of the manufacturer. At present, more and more packaging manufacturers use printed shrink films to replace traditional transparent films. Because the printed shrink film can improve the appearance of the product, it is conducive to the advertising of the product, and it can make the trademark brand have a deep impression in the hearts of consumers. It is a company specializing in the production of PET film with multiple functions, such as: transparent PET film, milky white PET film, release PET film, supply of PET motor film, etc. With a wide variety of products, affordable prices, and environmental protection, we provide customers with excellent quality and service based on the service tenet of excellence in production, honesty and trustworthiness in distribution, and warm and thoughtful service. Interested parties welcome to inquire! Contact: Wen Feng 13728425799
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