Many packaging companies face challenges in selecting the appropriate packaging material for their products. According to PE film manufacturers, this difficulty arises because the packaging materials often fail to meet the quality requirements during the product’s shelf life. In some cases, companies opt for overly thick and expensive composite films to ensure high performance, leading to wasteful over-packaging.

Finished products are often stored for several days and then manually inspected before shipping. Many packaging manufacturers have experienced multiple after-sales complaints and returns due to quality issues caused by packaging materials, resulting in economic losses. So, how should you choose the right packaging material? Here’s what PE film manufacturers recommend considering.

5 Steps to Choosing the Right Film Packaging Material

1. Consider the Composition of Multi-Layer Composite Films:
   Examine the compatibility of adjacent film layers. If two adjacent films have poor compatibility, adhesives or resin materials may be needed as an intermediate bonding layer.
2. Evaluate the Outer Layer Material:
   Consider the barrier properties, physical and mechanical performance, stability (e.g., light resistance, oil resistance, organic resistance, heat resistance, cold resistance), processability, and safety requirements of the packaging material for the contents.
3. Consider the Inner Layer Material:
   Focus on the heat sealability of the inner layer material, ensuring it provides a good heat seal effect and possesses sufficient mechanical strength and safety. Also, consider the middle layer, which should have good barrier properties and strong composite strength with adjacent layers.
4. Pay Attention to the Number of Layers:
   According to the PE film manufacturer, consider the maximum number of layers in the packaging structure based on packaging costs and overall physical and mechanical performance (such as tensile strength and impact resistance).
5. Consider the Thickness of Each Layer and the Total Thickness:
   Based on the given thickness range in the structural design, which includes the minimum and maximum total thickness, consider the thickness needed for each layer to perform optimally. For instance, if the barrier layer is too thick, it increases costs and may result in poor flexibility of the composite film. The barrier layer thickness should meet the gas transmission requirements of the contents without being excessive.

Conclusion

In summary, choosing the right film packaging material requires careful consideration of the usage scenario, product structure characteristics, the properties of multi-layer composite films, and the specific application needs to ensure the selected material effectively protects the product while enhancing its quality and value.