PVC cast shrink film is a material with unique properties and extensive applications.
Its production process is relatively complex and refined. First, PVC resin is fully mixed with various additives, and then heated and melted by an extruder. Next, the molten material is evenly cast on a cooling roller through a special cast die to form an initial film. After that, it needs to undergo processes such as stretching and orientation to obtain shrinkage properties. This series of rigorous procedures ensure the quality and performance stability of the film.
In terms of characteristics, it has many advantages. In addition to excellent shrinkage performance, when heated, it can shrink quickly and evenly, closely adhere to the packaged object, effectively fix the item and provide good protection. It also has the following advantages:
Good flexibility: It can adapt to packaging items of different shapes and sizes. Even products with complex shapes can be easily wrapped without breaking due to excessive bending or folding, providing great convenience for packaging operations.
High transparency: It can clearly display the appearance details and characteristics of the product inside the packaging, enhance the visual appeal of the product, and help consumers intuitively understand the product when purchasing, thereby promoting sales.
Certain barrier properties: It has a certain barrier ability to oxygen, water vapor, etc., can delay the deterioration of food, pharmaceuticals and other products, extend their shelf life, and ensure product quality.
Good chemical resistance: It can resist the erosion of some common chemical substances. When applied in the field of chemical product packaging, it can ensure that the packaging material will not react with the product and maintain the stability of the product.
The application fields of PVC cast shrink film are very extensive. In the food industry, it is often used to package beverages, food cans, etc., and can effectively maintain the freshness and hygiene of food. In the field of daily necessities, it can be used to package products such as shampoo and shower gel to make product packaging more beautiful and neat. In the stationery and toy industries, it can provide tight packaging for stationery and toys of various shapes, playing a dual role of protection and display. In addition, in the pharmaceutical, chemical and other industries, it can also reliably package related products to ensure the quality and safety of products during the circulation process. In short, PVC cast shrink film plays an important role in many fields with its unique process and excellent characteristics, and provides strong support for product packaging and logistics transportation.
