Small-Packaged Snack Foods: Protect with PVDC High Barrier Film | Quality Wholesale

Product Detail Description: PVDC High Barrier 7-Layer Co-Extrusion Film  

Introduction  

In the realm of advanced packaging solutions, the PVDC High Barrier 7-Layer Co-Extrusion Film stands out as a revolutionary product designed to meet the most demanding requirements across industries. Combining cutting-edge co-extrusion technology with superior material engineering, this film delivers unmatched performance in terms of barrier properties, durability, and adaptability. Whether for food preservation, pharmaceutical packaging, or industrial applications, this film ensures optimal protection against environmental factors while maintaining structural integrity under extreme conditions.  

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Product Overview  

The 7-layer co-extrusion structure is the cornerstone of this film’s exceptional functionality. Each layer is meticulously engineered to serve a specific purpose, resulting in a synergistic composite that exceeds industry standards. The primary components include:  

1. PVDC (Polyvinylidene Chloride) Barrier Layer: The core layer responsible for ultra-high resistance to oxygen, moisture, and volatile compounds.  

2. PA (Polyamide) Covering Layer: Enhances mechanical strength, puncture resistance, and thermal stability.  

3. PE (Polyethylene) Layer: Provides flexibility, waterproofing, and ease of processing.  

4. Specialized Bonding Layers: Ensure seamless adhesion between dissimilar materials for long-term durability.  

5. High-Temperature Resistant Layers: Enable compatibility with sterilization and high-heat processes.  

This multi-layered architecture allows the film to achieve a vacuum rate of over 99% and withstand atmospheric pressures up to -25 MPa, making it ideal for vacuum packaging, modified atmosphere packaging (MAP), and other high-performance applications.  

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Key Technical Features  

1. Superior Barrier Performance  

The inclusion of PVDC as the central barrier layer sets this film apart. PVDC is renowned for its exceptional gas and moisture barrier properties, reducing oxygen transmission rates (OTR) to nearly zero and water vapor transmission rates (WVTR) to negligible levels. This ensures:  

- Extended Shelf Life: Protects perishable goods like meat, dairy, and ready-to-eat meals from oxidation and spoilage.  

- Aroma Retention: Preserves the freshness and flavor of packaged products.  

- Chemical Resistance: Blocks volatile organic compounds (VOCs) and contaminants, making it suitable for pharmaceutical and chemical packaging.  

2. Robust Mechanical Properties  

The PA covering layer provides unparalleled tensile strength and puncture resistance, even under extreme conditions. Key benefits include:  

- High-Temperature Resistance: Withstands temperatures up to 120°C, enabling compatibility with autoclave sterilization, retort processing, and hot-fill applications.  

- Dimensional Stability: Maintains structural integrity across a wide temperature range (-40°C to 120°C).  

- Abrasion Resistance: Protects against damage during transportation and handling.  

3. Advanced Co-Extrusion Technology  

The 7-layer co-extrusion process ensures precise control over material distribution, thickness, and bonding. Advantages of this technology include:  

- Customizable Layer Configuration: Tailor the film’s properties (e.g., barrier strength, flexibility) to meet specific application needs.  

- Elimination of Delamination: Bonding layers chemically fuse dissimilar materials (e.g., PA and PE) to prevent layer separation.  

- Cost Efficiency: Reduces material waste while optimizing performance.  

4. Vacuum and Pressure Resistance  

Engineered for high-stress environments, the film’s -25 MPa atmospheric pressure resistance makes it ideal for:  

- Deep-Freeze Packaging: Maintains vacuum integrity in frozen food storage.  

- Aerospace and Industrial Use: Protects sensitive components from pressure fluctuations.  

- Medical Sterilization Pouches: Withstands autoclave cycles without compromising seal integrity.  

5. Environmental and Safety Compliance  

- Food-Grade Certification: Complies with FDA, EU, and global food contact regulations.  

- Recyclability: PE layers are compatible with recycling streams, supporting sustainability initiatives.  

- Non-Toxic Composition: Free from phthalates, BPA, and heavy metals.  

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Applications  

The versatility of the PVDC High Barrier Film makes it a preferred choice across diverse sectors:  

1. Food Packaging  

- Vacuum-Sealed Meats and Cheeses: Extends freshness by eliminating oxygen exposure.  

- Retort Pouches: Suitable for ready meals, soups, and sauces requiring high-temperature processing.  

- Snack Packaging: Blocks moisture and grease migration to preserve crispness.  

2. Pharmaceutical and Medical  

- Blister Packs: Protects tablets and capsules from humidity and oxidation.  

- Sterile Medical Device Packaging: Ensures sterility through autoclave compatibility.  

- Diagnostic Kits: Safeguards sensitive reagents from environmental contaminants.  

3. Industrial and Agricultural  

- Electronic Component Packaging: Shields against static, moisture, and dust.  

- Agricultural Films: Used in greenhouse covers and silage storage for UV and weather resistance.  

- Chemical Containment: Safely stores corrosive or volatile substances.  

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Advantages Over Conventional Films  

1. Multi-Functional Design: Combines barrier, mechanical, and thermal properties in a single film, eliminating the need for additional coatings or laminates.  

2. Cost-Effective Production: Co-extrusion reduces manufacturing steps and material usage.  

3. Lightweight Yet Durable: Offers superior protection without adding bulk, reducing shipping costs.  

4. Customizable Solutions: Available in varying thicknesses (20–200 microns) and widths to suit different machinery and end uses.  

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Quality Assurance and Certifications  

Every batch of PVDC High Barrier Film undergoes rigorous testing, including:  

- Oxygen and Moisture Transmission Analysis (ASTM D3985, ASTM F1249).  

- Seal Strength Testing (ASTM F88).  

- Thermal Stability Evaluation (ISO 11357).  

- Pressure Resistance Validation (ISO 2758).  

Certifications include ISO 9001, ISO 14001, and HACCP, ensuring consistent quality and safety.  

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Conclusion  

The PVDC High Barrier 7-Layer Co-Extrusion Film redefines the boundaries of modern packaging. Its innovative structure, combining PVDC’s unmatched barrier properties with PA’s robustness and PE’s flexibility, addresses the evolving needs of industries demanding reliability, efficiency, and sustainability. Whether preserving the freshness of gourmet foods, ensuring the sterility of medical devices, or protecting industrial components, this film delivers performance that exceeds expectations.  

For more details on customization, technical specifications, or bulk orders, contact our team to explore how this advanced solution can elevate your packaging strategy.  

 PVDC high barrier film can be used with various types of heat-sealed packaging, small vacuum sealing packaging machines, double-chamber vacuum sealing packaging machines, continuous rolling vacuum sealing packaging machines, thermoforming stretch film vacuum packaging machines, and various types of high-temperature cooking spray steam sterilization kettles.