2026 Complete Guide to Composite Laminated Flexible Packaging: Types, Process & Applications

According to the lamination process, composite flexible packaging can be divided into dry lamination, extrusion lamination, and solventless lamination, among which solventless laminated flexible packaging has become the mainstream technology in the global packaging industry due to its outstanding eco-friendly properties. The composite substrates cover combinations of plastic films, metal foils, paper and other functional materials, and the complete production process includes four core procedures: printing, lamination, slitting, and bag making.

• Full Classification of Composite Flexible Packaging

1. Classification by Lamination Manufacturing Process

1. Dry lamination composite flexible packaging with organic solvent-based adhesives
2. Wet lamination composite flexible packaging with inorganic adhesives
3. Extrusion film lamination composite flexible packaging
4. Multi-layer co-extrusion composite flexible packaging (produced via two or more extruders)
5. Hot melt adhesive coating composite flexible packaging
6. Solventless composite flexible packaging (solid adhesive lamination)
7. Physical Vapor Deposition (PVD) composite flexible packaging
8. Chemical Vapor Deposition (CVD) composite flexible packaging
9. Compounding composite flexible packaging
10. Hybrid composite flexible packaging combining the above methods
    
    
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2. Classification by Functional Application

1. Reinforced composite packaging
2. High barrier composite packaging (gas barrier, moisture barrier, oil barrier)
3. Anti-corrosion and anti-rust composite packaging
4. Anti-electromagnetic interference composite packaging
5. Anti-static composite packaging
6. Bio-functional composite packaging (fruit ripening, live fish preservation, insect prevention, mildew prevention)
7. Fresh-keeping composite packaging (for fruits, vegetables and meat products)
8. Cooking-ready composite packaging (such as retort sterilization, microwave baking, etc.)
9. Intelligent smart composite packaging
10. Nano-engineered composite packaging
    

3. Classification by Composite Substrate Materials

The core substrates used for flexible packaging lamination are plastic films, followed by paper, metal foils and other functional composite materials. They can be processed to manufacture the following types of composite packaging materials:

1. Paper to paper lamination
2. Paper to metal foil lamination
3. Paper to plastic film lamination
4. Plastic film to plastic film lamination
5. Plastic film to metal foil lamination
6. Plastic film to metallized film lamination
7. Plastic film to rigid base material lamination
8. Plastic film to inorganic compound film lamination
9. Plastic film to organic compound film lamination
10. Amorphous plastic film to plastic film lamination

Key Applications & Core Advantages of Composite Flexible Packaging

• Main Industry Applications

• Food industry: instant noodles, puffed snacks, sausages, frozen food, retort food, condiments, etc.
• Beverage industry: liquid beverages, fruit juice, dairy products, etc.
• Pharmaceutical industry: solid medicines, liquid medicines, medical device packaging, etc.
• Cosmetic and daily chemical industry: skin care products, toiletries, household cleaning products, etc.

Core Advantages Over Traditional Packaging Materials

1. Super strong customized protective performance: can achieve targeted barrier properties against oxygen, moisture, light, oil and microorganisms, greatly extending the shelf life of products
2. Ultra-light weight and soft texture: significantly lower weight than glass and metal packaging, reducing raw material consumption and carbon footprint
3. Minimal redundant volume: high space utilization rate, saving storage and transportation space
4. Diversified appearance forms: can be made into various bag types, with excellent printing adaptability to achieve exquisite shelf display effects
5. Outstanding dimensional stability: wide range of applicable products, compatible with most automated filling and packaging equipment
6. Flexible material matching: wide source of substrates, can be freely combined to meet customized performance requirements
7. User-friendly: easy to open, carry and store, fully adapted to modern fast consumption scenarios
8. Low logistics cost: light weight greatly reduces transportation and circulation costs
9. Excellent machinability: compatible with high-speed automated packaging production lines, significantly improving production efficiency