In the pet food industry, maintaining the freshness of the food is of utmost importance. The freshness of the food is influenced by various factors, such as oxygen content, light exposure, moisture conditions, and other environmental factors, which can easily cause the food to undergo oxidation, discoloration, and dehydration.
If you also want to learn about pet food packaging bags, come and have a look with EVERGOLDLEAF together!

01 What are the types of pet packaging bags?
Plastic bags, aluminum foil bags and aluminum-coated bags are all commonly used materials for pet food packaging. However, they differ in terms of maintaining food freshness and applicable scenarios.
1. Plastic bags
The structure is usually made of a single type of plastic material, such as PE (polyethylene) or PP (polypropylene).

In terms of performance, plastic bags have a certain degree of strength, but their barrier properties are relatively poor and they are not very effective at preventing the penetration of gases, light, and humidity. They are commonly used as the outer packaging for large packages or economical pet food.

2. Aluminized Bags
Aluminized bags are made by evaporating aluminum and depositing it onto the surface of a plastic film. Compared to ordinary plastic bags, they offer better barrier properties, but are slightly inferior to true aluminum foil bags. Therefore, they are suitable for medium-quality pet food or products that have moderate requirements for barrier performance.

3. Aluminum Foil Bag
Its structure consists of multiple layers of materials. One of the layers is the core aluminum layer, which exhibits outstanding barrier properties, especially in terms of gas, light and humidity isolation. It is suitable for high-quality pet food that needs to be stored for a long time, as well as products that are highly sensitive to oxygen and humidity.

02 Various pet food packaging bags
EVERGOLDLEAF Packaging can provide you with
Therefore, for pet food that requires long-term preservation, or for high-end pet food that is extremely sensitive to external environmental factors (such as oxygen and humidity), aluminum foil bags are a better choice, as they offer superior barrier performance.
EVERGOLDLEAF Packaging has extensive production experience in the packaging printing field and can provide a complete package customization service including product development and design! If you have any packaging customization needs, please feel free to place an inquiry.
Post time: Jul-14-2025