Shrink film, also known as shrink wrap, is a versatile packaging material that has gained popularity due to its ability to tightly fit products. This unique property makes it ideal for a variety of applications, from protecting and securing merchandise to enhancing product presentation. In this article, we will give you a detailed introduction to “How does shrink film work”.

PVC Shrink Film

Types of Shrink Film

Shrink film can be categorized into various types according to the different uses, materials and production processes, such as PVC shrink film, PET shrink film, POF shrink film, etc.

Second, the composition of the shrink film

Shrink film is usually composed of shrink agent, resin and additives. Among them, the shrinkage agent is the key material of the shrink film, which can make the shrink film contract violently under the state of heat and effectively wrap the items.

Third, the working principle of shrink film

The working principle of shrink film is to realize wrapping items through heat shrinkage. When the shrink film is heated, the shrinking agent begins to act, so that the shrink film is heated to produce intense contraction, so as to wrap the items. Shrink film needs to meet certain conditions when working, such as temperature, humidity and other requirements. When used, it needs to be processed by a professional shrink film packaging machine.

Fourth, the advantages of shrink film

There are many advantages of using shrink film for packaging items. The most obvious is that shrink film packaging has a beautiful appearance, can protect the integrity and cleanliness of the items; at the same time, shrink film can be tightly wrapped around the items, to avoid friction and extrusion, to reduce the damage to the items. In addition, shrink-wrapped items have a beautiful appearance, facilitate the dissemination of brand image, and are easy to store and logistics.

Five,Application Areas

PVC shrink film is the most common one, suitable for food packaging, daily necessities packaging, stationery packaging and other fields; PET shrink film is widely used in the field of bottle packaging; POF shrink film is related to environmental protection, biodegradable and other related emerging industries.

Shrinkable Film application


As a commonly used packaging material, shrink film is widely used in various fields. Its unique working principle makes the packaging more beautiful and the items more secure. However, in the application process also need to pay attention to the selection of materials and processing technology of shrink film to ensure the quality of packaging.

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