Pet food comes in various forms-including dry food, wet food, and treats-each requiring specific packaging materials and performance characteristics. Therefore, the choice of packaging bag should be tailored to the specific product.
1. Dry food (also known as extruded kibble) is granular, relatively dry, and low in moisture; it typically uses plastic packaging bags. Dry food is relatively affordable, and plastic bags offer excellent cost-performance, convenience, and printability. Common materials for custom pet food bags include: two-layer laminates (PET/PE, co-extruded PE film, NY/PE, PP/PE, PE/PE); three-layer laminates (PET/AL/PE, PET/MPET/PE, PET/NY/PE); and four-layer laminates (PET/AL/PET/PE, PET/NY/AL/PE).
2. Wet or semi-wet food has a higher moisture content. Products like canned food contain broth and have high water content and a sticky consistency; they generally use cans or aluminum foil pouches.
3. Treats/snacks can utilize shaped bags to attract consumers, with material selection determined by the specific product being packaged.