dog food bags are flexible plastic packaging products specifically designed for packaging dry and wet pet food, commonly found in the commercial sales and transportation of dog food. They primarily use multi-layered composite films, employing a scientifically sealed structure to effectively prevent moisture, oxidation, and odor leakage, thus maintaining the freshness and nutritional value of the food. Unlike traditional paper bags or single-layer plastic bags, modern dog food bags utilize multi-layer barrier technology and can be customized in terms of printing, structural design, and capacity to meet the market positioning needs of different brands. This packaging not only helps extend the shelf life of dog food but also enhances the overall brand professionalism and market competitiveness, making it a widely adopted mainstream packaging format in the contemporary pet food industry.

1. High Barrier Properties:

The Dog Food Bag utilizes high-barrier materials such as PET/VMPET/PE and PET/AL/NY/PE, achieving excellent anti-oxidation, moisture-proof, and odor-proof effects through aluminum foil or metallized layers. Its oxygen transmission rate (OTR) is as low as 1.5 cm³/m²·24h, and water vapor transmission rate (WVTR) can be controlled below 0.5 g/m²·24h, ensuring the dog food remains dry and flavor stable during long-term storage. This performance is particularly crucial for export or long-distance transportation, effectively extending the product's shelf life.

2. High Sealing Performance:

The bag features a double or triple heat-sealing design, achieving a sealing strength of ≥40 N/15mm, maintaining a stable seal even under vacuum or nitrogen purging conditions. An RCPP heat-sealing layer is available, with a wide sealing temperature range (110°C–180°C), suitable for automated filling equipment. Excellent sealing performance prevents grease leakage, powder spillage, and oxygen ingress, ensuring feed quality and safety.

3. High Printing Precision:

The Custom Printing Stand-up Pouch Dog Food Bag utilizes eight- to ten-color gravure printing technology, achieving a printing resolution of 150–175 LPI. The resulting designs boast rich color gradations and are resistant to fading. Matte, gloss, spot UV, and laser film effects are available, supporting high-definition display of logos, nutrition facts, and product instructions. Zhongxing factory uses environmentally friendly inks and food-grade adhesives, ensuring printing safety and compliance with FDA and EU food contact standards.

4. Diverse Bag Types:

Various custom structures are available, including stand-up pouches (SUP), flat bottom bags, side-seal bags, zippered resealable bags, and tear-off bags. Different structures can be flexibly designed according to packaging capacity and display methods. Flat bottom bags are more suitable for large-capacity dog food packaging (10–20 kg), while stand-up pouches are commonly used for small pet treats.

5. Environmentally Friendly Material Options:

Single recyclable structures such as PE/PE and BOPE/PE are available to meet the sustainable packaging requirements of the European market. All materials are REACH and RoHS compliant, with optional bio-based biodegradable material structures (PLA/PBAT/PE) to ensure strength while adhering to environmental trends and aligning with the brand's green packaging strategy.

6. Excellent Mechanical Properties:

The Dog Food Bag body utilizes a high-strength nylon (NY) layer or aluminum foil reinforcement layer, achieving a puncture strength of 18–25 N and a tensile strength ≥55 MPa, preventing punctures from particles or edges during filling or transportation. The materials undergo multiple composite tensile tests, demonstrating excellent tear resistance and ensuring stable operation during automated bagging and boxing processes.

7. Good Instability:

The bottom structure features a heat-sealed, thickened design with a stiffness exceeding 35 mN, ensuring stable standing on shelves and preventing tipping. A smooth surface and sturdy bottom corner welds guarantee a flat bag appearance, enhancing brand display aesthetics and facilitating consistent retail presentation.

8. Customization Flexibility:

Available in capacities from 500 g to 20 kg, with bag thicknesses ranging from 60–180 μm, to meet customer needs. It supports features such as hanging holes, viewing windows, zippers, valves, and vents, and is compatible with domestic and international automated packaging machines. Zhongxing has an independent bag-making production line and high-speed laminating equipment to ensure stable mass production.

1. Dog Food Packaging:

Dog Food Bags are widely used for dry, wet, and freeze-dried dog food products. Their high barrier properties and strong sealing effectively prevent oil oxidation and mold growth. Large-capacity flat-bottom bags are commonly used for packaging over 10 kg, facilitating warehousing and bulk sales; smaller zipper bags are more suitable for daily family use, ensuring the food remains fresh after each opening.

2. Pet Treats and Functional Food Packaging:

Suitable for high-value pet treats such as beef jerky, shredded chicken, chew bones, and vitamin biscuits. The inner RCPP structure is oil- and leak-proof, and the zipper structure supports multiple closures, allowing pet owners to easily control daily portion sizes. A transparent window design can be added, allowing consumers to directly check product quality.

3. Pet Brand Display and Retail Showcase:

Dog Food Bags have a high-strength, flat appearance and can be printed with matte or glossy film, giving them a professional and high-end look on retail shelves and in supermarkets. High-definition printing ensures that the brand logo, formula icons, and dog food kibble images are clearly visible, helping to enhance brand image and consumer trust.

4. Cross-border Export and E-commerce Shipping:

Zhongxing's dog food bags have passed drop tests and transportation simulation tests, with a pressure resistance of ≥35 kg, making them suitable for cross-border logistics and long-distance transportation. The bags are not easily broken or delaminated, effectively reducing the damage rate. The smooth surface is compatible with heat transfer labels or automatic labeling machines, facilitating warehousing and distribution in international markets.

5. OEM and Customized Packaging Services:

Zhongxing provides a one-stop OEM service, from structural design, material selection, printing plate making to composite bag manufacturing. Different structural solutions can be customized according to brand positioning, market regulations, and packaging machinery requirements, supporting flexible MOQ. With over 30 years of experience in plastic flexible packaging production, the company provides stable supply and technical support to overseas pet food brands.