Pet food packaging

Material composition

Pet food bags are made from a variety of materials, with the following being the most common:

1. Co-extruded PE film: A commonly used plastic film with excellent barrier properties and heat resistance.

2. Fabric bags: Made from woven materials, these are typically used for packaging large quantities of pet food.

3. Double-layer composite bags: Examples include PP/PE, PE/PE, PET/PE, NY/PE, etc. These material combinations enhance the bag's barrier properties and strength.

4. Triple-layer composite bags: Examples include PET/NY/PE, PET/MPET/PE, PET/AL/PE, etc. These bags typically offer better barrier performance and tear resistance.

5. Four-layer composite bags: Examples include PET/NY/AL/PE, PET/AL/PET/PE, etc. These bags are typically used for pet food requiring higher barrier properties and longer shelf life.

6. High-temperature sterilisation bags: e.g., PET/NY/AL/RCPP. These bags can withstand high-temperature sterilisation and are typically used for wet food or soft canned food packaging.

Among these materials, aluminium foil (AL) is widely used because aluminium foil packaging bags offer excellent barrier properties, sealing properties, light-blocking properties, oil resistance, and flexibility, making them highly suitable for pet food packaging.

Bag design

Pet food bags come in a variety of designs to meet the needs of different pet foods and consumer preferences. Common bag types include:

1. Flat-bottom bags: These bags have a flat bottom, making them easy to place and stack.

2. Four-sealed bags: These bags are sealed on all four sides, improving their sealing and strength.

3. Stand-up pouches: These have a support structure at the bottom, allowing them to stand upright, making them convenient for display and use.

4. Connected pouches: Multiple pouches are connected together, making them convenient for bulk packaging and transportation.

5. Back-sealed pouches: The seal is located on the back of the pouch, typically used for small-packaged pet food.

Additional design

In addition to basic materials and bag design, pet food bags can be further designed as needed to enhance their practicality and aesthetics. These additional designs include:

1. Printing: Brand information, product descriptions, nutritional information, etc. can be printed on the bag to improve product recognition and appeal.

2. Zipper: A reusable zipper design makes it convenient for consumers to use and store pet food while maintaining freshness.

3. One-way air valve: Used to release excess gas from the bag, extending the food's shelf life.

4. Spout: Makes it easy to pour out the food, preventing spills or waste.