Dry Laminator

• Advantages:
- Wide Applicability: Can handle various substrates (e.g., BOPP, PET, aluminum foil, nylon, PE, etc.) with flexible combinations.
- Mature Process: Stable technology and extensive operational experience, making it one of the most mainstream lamination methods currently.
- Excellent Product Performance: High bond strength and good transparency of the finished product.

• Limitations:
- Environmental and Safety Pressure: When using solvent-based adhesives, there are VOC emission issues, requiring expensive exhaust gas recovery and treatment systems.
- High Energy Consumption: The oven drying process consumes significant energy.
- Solvent Residue Risk: Potential migration risk for food and pharmaceutical packaging, requiring strict control.

Solventless Laminator

•Advantages:
- Green and Environmentally Friendly: No VOC emissions, compliant with increasingly stringent environmental regulations, representing the future development trend.
- High Efficiency and Energy Saving: No oven required, significantly reducing energy consumption and enabling faster production line speeds.
- High Safety: No risk of solvent residue, making it particularly suitable for packaging with high hygiene requirements like food and pharmaceuticals.
• Limitations:
- Low Initial Strength: Curing requires a certain time (typically 24-48 hours), preventing immediate subsequent slitting or bag making.
- Extremely High Demands on Substrate Tension Control： Requires strict equipment precision and operator skill.

Extrusion Laminator

• Advantages:
- Cost Advantage: Uses inexpensive resin instead of adhesive, resulting in low comprehensive cost.
- Functional Integration: The extruded layer acts simultaneously as both the adhesive and a functional layer (e.g., heat-seal layer, moisture barrier), simplifying the structure.
- No Solvent Issues: No chemical solvents are involved in the process.

• Limitations:
- High Equipment Investment:The production line is large-scale with high initial capital expenditure.
- High Energy Consumption: The extruder heating consumes significant power.
- Limited Material Compatibility: Primarily suitable for substrates that bond well with polyolefins.

Hot Melt Adhesive Laminator

•Advantages:
- Instant Bonding: Solidifies upon cooling, enabling fast production pace with no curing time.
- 100% Solid Content: No VOCs, environmentally friendly.
- Relatively Simple Equipment: Lower investment and operational costs.
• Limitations:
- Poor Heat Resistance:Hot melt adhesives have limited high-temperature resistance, making them unsuitable for applications like high-temperature retorting.
- Narrow Applicability: Mostly used in non-food packaging fields such as hygiene materials (diapers, sanitary napkins), furniture lining, and automotive interiors.