What are the advantages of using composite packaging bags
2025-10-20
I. Performance Advantages: The "Comprehensive Protection System" Established by a Multi-Layer Structure
Barrier property: precisely retaining product value
Multidimensional barrier capability: Through the combination of classic structures such as PET/AL/PE, it achieves comprehensive barrier capabilities against oxygen, moisture, ultraviolet rays, and odors. For example, the aluminum foil layer can extend the shelf life of food by 3-5 times.Scenario-based barrier solution: For perishable foods prone to oxidation (such as coffee), a high oxygen-barrier EVOH layer is used; for moist environments (such as tea), a PVDC coating is applied, addressing the "one-size-fits-all" protection shortcomings of traditional packaging.
Mechanical strength: a perfect balance between portability and durability
Damage resistance upgrade: The multi-layer composite structure enhances puncture and tear resistance by 4-6 times compared to a single plastic Bag, with a load-bearing capacity of over 20kg, making it suitable for packaging sharp objects (such as hardware) and heavy items.Environmental adaptability: The temperature range of resistance covers -40℃ to 121℃, meeting special needs such as refrigeration of frozen foods and high-temperature sterilization of medical devices, solving the problem of "damage due to temperature changes" in traditional packaging.
II.Economic advantages: The optimal solution for short-term investment and long-term returns
Full-chain cost optimization logic
Production side: The automated molding process is mature. Although the cost of raw materials per bag is higher than that of traditional Plastic Bags, the processing cost decreases by 15%-20% during mass production, and the utilization rate of raw materials reaches over 95%.Logistics side: The weight is over 60% lighter than glass and metal packaging, and 30% lighter than traditional cardboard boxes. The packaging volume can be compressed by 25%, significantly reducing warehousing and transportation costs (based on an annual transportation volume of 1,000 tons, the annual cost savings exceed RMB 200,000).
Loss end: Due to its excellent protective properties, the product transportation damage rate can be reduced from 5%-8% of traditional packaging to below 0.5%, significantly reducing after-sales losses.
Brand value enhancement effect
Visual communication advantages: The outer layer of materials such as PET and BOPP are compatible with high-definition gravure printing, achieving high color reproduction and enabling precise presentation of brand logos and product information, thereby stimulating consumer purchasing desire.Morphology customization capability: Capable of designing various forms such as stand-up pouches, zipper pouches, and suction-mouth pouches, enhancing product convenience and strengthening brand differentiation perception.
III. Adaptation Advantages: Scenario Solutions Covering the Entire Industry

Food industry:vacuum coffee bags (PET/AL/PE structure) provide oxygen resistance and aroma retention, frozen Food Bags (with an inner layer of LLDPE) are resistant to low temperatures and prevent rupture, and breather valve feed bags regulate gas to prevent mold growth.
In the pharmaceutical field: pharmaceutical aluminum-plastic bags (AL/PET/CPP) protect against light and moisture, while medical device sterilization bags (Tyvek/PE) are breathable and meet sterile standards for pharmaceutical packaging.
Electronics industry: Anti-static composite bags (silver-coated PET/PE) isolate static electricity, protect chips and circuit boards from electrostatic damage, and are suitable for the transportation of precision electronic components.
IV. Environmental Advantages: Technological Evolution under Sustainable Development
Material innovation: By combining biodegradable PLA, PBAT, and traditional materials, we achieve degradation within 180 days in a natural environment. We also promote the use of recyclable materials such as RCPP to enhance sorting and recycling efficiency. Process optimization: Replacing traditional solvent lamination with solvent-free lamination reduces VOC emissions by over 90% and minimizes the environmental impact of the production process.
Carbon footprint advantage: The lightweight design reduces the carbon emission per unit of product packaging by 70% compared to traditional glass packaging, aligning with the global trend of low-carbon development. Corporate responsibility is demonstrated: The use of environmentally friendly composite bags can enhance the brand's ESG rating, cater to consumers' preference for green products, and strengthen market competitiveness.












