PET shrink film customization does have certain limitations in terms of packaging size.
First of all, in terms of physical size, the width of PET shrink film usually has a certain range of specifications. If the package size is too large, multiple shrink films may need to be spliced, which will increase the complexity and cost of the packaging, and may also affect the aesthetics and sealing of the packaging. If the package size is too small, the shrink film may shrink excessively during the shrinking process, causing squeezing or even damage to the products in the package.
Secondly, thickness is also an influencing factor. Thinner PET shrink film may not be able to adapt to oversized packages because its shrinkage force is relatively weak and it is difficult to wrap large items tightly. For very small packages, too thick shrink film may appear too heavy, which not only wastes materials, but also may affect the flexibility and convenience of the packaging.
In addition, the shape of the package will also limit PET shrink film customization. For regular-shaped packages, such as cuboids, cylinders, etc., it is relatively easy to find suitable shrink films for customization. However, for complex and irregular packages, specially designed shrink films may be required, which will increase the difficulty and cost of customization. Moreover, complex-shaped packages may shrink unevenly in the shrinking process, affecting the packaging effect.
When customizing PET shrink film, you also need to consider the characteristics of the packaged items. If it is a sharp or protruding item, you need to ensure that the shrink film has sufficient strength and toughness to avoid being punctured during the shrinking process. At the same time, for heavy items, the shrink film needs to have sufficient load-bearing capacity to prevent rupture during transportation and storage.
In addition, the limitations of production equipment cannot be ignored. Different production equipment may have different requirements for the size of PET shrink film. Some large equipment can handle larger shrink films, but may not be flexible enough for small-sized packages. Small equipment may not be able to adapt to the customization needs of oversized shrink films.
In summary, when customizing PET shrink film, you need to fully consider factors such as package size, shape, item characteristics, and production equipment to ensure that the customized shrink film can meet actual packaging needs.
