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Laminate
Dingang
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3 Layer Aluminum Plastic Composite Film is a multilayer flexible material combining an outer polymer film, a solid aluminum foil barrier layer and an inner sealing layer. Typical structures include PET/AL/PE, PET/AL/CPP and PA/AL/PE, with each layer selected to provide specific printing, barrier, mechanical and sealing functions.
The aluminum foil layer provides strong protection against oxygen, water vapor and light, while the polymer layers contribute mechanical strength, flexibility, printability, puncture resistance or heat-sealing performance according to the selected structure.
The material is available with a total laminate thickness of 50-200μm, aluminum foil thickness of 6-12μm and finished widths up to 2000mm. Glossy or matte surfaces and customized gravure printing can be supplied for flexible packaging and selected industrial applications.
For applications requiring controlled barrier performance, high-temperature processing, food contact, pharmaceutical use, static control or other specialized functions, the complete laminate structure and applicable test requirements should be confirmed before production.
Request 3 Layer Composite Film Pricing
| Item | Details |
|---|---|
| Product Type | 3 Layer Aluminum Plastic Composite Film |
| Typical Structures | PET / AL / PE, PET / AL / CPP, PA / AL / PE |
| Total Thickness | 50-200μm |
| Aluminum Foil Thickness | 6-12μm |
| Width | Up to 2000mm |
| Roll Length | Customized according to order and converting requirements |
| Surface Finish | Glossy / Matte |
| Printing | Customized gravure printing available |
| Barrier Property | High oxygen, moisture and light barrier; specify numerical OTR and WVTR when controlled |
| Heat Sealability | Heat-sealable structures available; seal layer and conditions should match the packaging process |
| Supply Form | Rollstock or customized converted material subject to order requirements |
| Typical Lead Time | 10-20 days, depending on structure, quantity, printing and production schedule |
For an accurate quotation, provide the laminate structure, total thickness, aluminum foil gauge, roll width, roll length or diameter, core size, winding direction, quantity, printing requirements, heat-sealing conditions and final application.
| Layer | Typical Material | Main Function |
|---|---|---|
| Outer Layer | PET or PA Nylon | Provides mechanical support, surface durability and, depending on material, printability or puncture resistance. |
| Middle Layer | Solid Aluminum Foil | Provides the primary barrier against oxygen, moisture and light when foil integrity is maintained. |
| Inner Layer | PE or CPP | Provides heat sealing and the inner contact surface for suitable packaging applications. |
PET provides tensile strength, dimensional stability and a suitable outer surface for printing and handling. It helps protect the aluminum layer during converting, filling and transportation.
The solid aluminum foil layer provides strong oxygen, moisture and light protection. Barrier performance depends on foil thickness, pinhole condition, flex damage and finished package integrity.
The PE inner layer provides flexibility and heat-sealing functionality for suitable pouches and flexible packaging. PE grade, seal initiation temperature, seal pressure and dwell time should match the buyer's packaging equipment.
PET/AL/PE is suitable for many general high-barrier applications including coffee, tea, dry foods, powders, ingredients, nutritional products, industrial barrier bags and selected pharmaceutical or healthcare packaging after applicable material requirements are confirmed.
PET/AL/CPP combines a PET outer layer, aluminum foil core and cast polypropylene sealing layer. CPP provides a different sealing and temperature profile from PE and can be selected for applications where polypropylene-based sealing performance is preferred.
The exact CPP grade must be selected according to filling temperature, sealing equipment and any post-packaging thermal treatment. Standard CPP should not automatically be assumed to meet high-temperature retort requirements.
PA Nylon provides greater toughness and puncture resistance than structures relying only on a conventional PET outer layer. It can therefore be considered for vacuum packaging and products that place greater mechanical stress on the pouch.
PA/AL/PE can be evaluated for vacuum-packed foods, industrial components and other products requiring high barrier together with additional resistance to puncture and flex damage.
The required film gauge should be selected according to product weight, sharp edges, vacuum level, package size, storage environment and distribution conditions.
Solid aluminum foil can provide very strong resistance to oxygen transmission when the foil remains intact. Where oxygen barrier is a contractual requirement, specify a numerical OTR target and the applicable test conditions.
The aluminum layer provides strong protection against water vapor. Numerical WVTR requirements should be specified together with test temperature, relative humidity and applicable method where shelf-life performance is critical.
The opaque foil layer protects light-sensitive contents by preventing direct light transmission through the laminate.
The polymer outer layer helps reinforce the aluminum foil and improves handling performance during printing, lamination, pouch converting, filling, transport and storage.
PE or CPP inner layers provide heat-sealing functionality. Seal performance depends on polymer grade, temperature, pressure, dwell time, seal contamination and package design.
Three-layer foil laminates provide high barrier protection in a relatively thin flexible construction, making them suitable for rollstock, pouches, sachets, liners and protective packaging.
For products sensitive to oxidation, provide the maximum acceptable OTR together with test temperature and relative humidity. The final requirement should reflect the intended product and shelf-life target.
For moisture-sensitive products, specify the required WVTR and test conditions. Comparing barrier values measured under different conditions can produce misleading results.
Pinhole condition, cracking and flex damage can influence finished barrier performance. Applications requiring very long shelf life or demanding flex resistance should define appropriate foil and finished-package testing.
Film barrier data alone does not define complete pouch performance. Seams, valves, zippers, closures, folds and converting damage can affect the overall barrier of the finished package.
Three-layer aluminum laminates can be used for coffee, tea and similar products requiring protection against oxygen, moisture and light. Finished structure should be selected according to product type, expected shelf life and any valve or zipper requirements.
PET/AL/PE and PET/AL/CPP structures can be used for suitable snacks, nuts, powders, ingredients and other dry products requiring a high-barrier flexible package.
PA/AL/PE can be considered where vacuum packaging requires additional puncture resistance and mechanical durability. Product shape and edges should be considered when selecting total thickness.
High-temperature retort processing requires a specifically qualified laminate construction. Standard PET/AL/PE, PA/AL/PE or PET/AL/CPP should not automatically be assumed to withstand a specified retort cycle.
For retort projects, provide sterilization temperature, holding time, pressure, food composition, filling conditions and required shelf life so that compatible adhesive and sealant systems can be evaluated.
Discuss Your Packaging Application
Suitable three-layer aluminum laminates can be evaluated for pharmaceutical powders, nutritional products, healthcare sachets and other high-barrier applications where the selected substrates, adhesives and inks satisfy the required product-contact and regulatory conditions.
Foil laminates can be evaluated for selected medical or diagnostic packaging when barrier, seal, sterilization and regulatory requirements are defined by the customer.
Conventional PET/AL/PE packaging laminate should not automatically be treated as pharmaceutical blister foil. Blister lidding, tropical blister and cold-form applications use application-specific constructions that should be specified separately.
High-barrier foil laminates can be considered as liners for moisture-sensitive powders, chemicals, ingredients and other bulk products where the laminate strength, seam design and compatibility meet the filling and handling conditions.
PET/AL/PE and related structures can be converted into protective barrier bags for machinery parts, precision components and other products requiring moisture and environmental protection during storage and transportation.
Three-layer foil composite materials can be evaluated as vapor-barrier or facing layers within suitable insulation systems. Thermal insulation performance depends on the complete assembly rather than the foil laminate alone.
For chemical packaging, polymer compatibility, seal integrity, permeation, regulatory requirements and the actual chemical formulation must be reviewed before a laminate is selected.
Foil laminates can provide high moisture-barrier packaging for suitable electronics and precision components. Package construction should be selected according to storage conditions, moisture sensitivity and required sealing performance.
A conventional three-layer aluminum laminate should not automatically be described as anti-static or ESD protective. Where static-control performance is required, the laminate needs appropriate conductive, dissipative or shielding construction and measurable electrical requirements.
General flexible-packaging laminates should not automatically be used as lithium-ion pouch-cell materials. Battery pouch film requires dedicated layer design, deep-drawing capability, electrolyte resistance, electrical insulation and controlled heat-sealing performance.
| Comparison | PET / AL / PE | PET / VMPET / PE |
|---|---|---|
| Middle Layer | Solid aluminum foil | Vacuum-metallized PET film |
| Barrier Level | Generally selected where stronger foil barrier is required | Barrier depends on metallization quality and is different from solid foil |
| Light Blocking | Opaque solid foil barrier | Metalized appearance with performance dependent on coating density |
| Selection | Suitable where high barrier is the main requirement | Consider where different flexibility, appearance or barrier balance is acceptable |
Custom gravure printing can be supplied according to approved artwork, number of colors, print repeat and roll configuration.
Glossy outer surfaces can be selected for packaging requiring a brighter visual appearance and conventional printed finish.
Matte surface options can be specified where a lower-gloss appearance is required for branded or industrial packaging.
Total laminate gauge should be checked against the agreed tolerance because variations can affect stiffness, converting and sealing behavior.
Foil thickness should match the approved specification and application requirement. The listed foil range for this product is 6-12μm.
Interlayer adhesion should be evaluated according to the laminate structure, adhesive, curing condition and final application.
Seal strength requirements should reflect the selected PE or CPP layer, package weight, fill conditions and sealing equipment.
Where oxygen or water-vapor transmission is controlled, target values and test conditions should be agreed before production.
Roll edges, winding, wrinkles, contamination, splices and other converting-related requirements should be defined according to the customer's production equipment.
The composite film can be supplied as rollstock using eye-to-sky, eye-to-wall or other suitable roll-packaging arrangements. Export-standard wooden pallets and moisture-resistant outer packaging help protect rolls during storage and international transportation.
The listed lead time is approximately 10-20 days, subject to selected laminate structure, printing, order quantity, material availability and production schedule.
Wooden Case Packing
Pallet Coil Packing
Aluminum Foil Barrier Bag
PET/AL/PE, PET/AL/CPP and PA/AL/PE structures can be selected according to barrier, sealing, mechanical and converting requirements.
Total laminate thickness can be specified within the listed 50-200μm range according to product protection, stiffness and converting requirements.
Aluminum foil from 6μm to 12μm can be selected according to the required barrier, flex and processing characteristics.
Widths up to 2000mm are available. Roll length, maximum roll diameter, core size and winding direction should be specified for converting-line compatibility.
Gravure printing, matte and glossy surface requirements can be customized according to approved artwork and final packaging design.
Request a Custom 3 Layer Structure
State whether the material is intended for food packaging, vacuum packaging, industrial protection, pharmaceutical packaging, insulation, electronics or another application.
Provide PET/AL/PE, PET/AL/CPP, PA/AL/PE or the currently approved material structure where known.
Specify total laminate thickness and, where controlled, individual PET, PA, aluminum foil, PE or CPP layer thicknesses.
Provide target OTR, WVTR or other barrier requirements together with the applicable test conditions where product shelf life depends on measured performance.
State the sealing temperature, dwell time, pressure and packaging equipment where these parameters are already established.
Specify film width, roll length or diameter, core size, winding direction and order quantity.
For printed film, provide artwork, print colors, repeat length, matte or glossy requirement and approved color references.
For food, pharmaceutical, healthcare, electronics or other regulated applications, identify the destination market and required material or testing documentation before production.
It is a three-layer laminate combining polymer film, solid aluminum foil and a sealing polymer to provide barrier, mechanical and heat-sealing performance for suitable flexible packaging and industrial applications.
The listed structures are PET/AL/PE, PET/AL/CPP and PA/AL/PE.
PET provides outer-layer strength and printability, aluminum foil provides the primary oxygen, moisture and light barrier, and PE provides the heat-sealing inner layer.
PET/AL/PE is commonly selected where printability, dimensional stability and general high-barrier packaging performance are important. PA/AL/PE adds Nylon as the outer reinforcing layer and can provide greater toughness and puncture resistance.
PE and CPP have different sealing, stiffness and thermal characteristics. The appropriate material should be selected according to packaging equipment, product contact and thermal-processing requirements.
The listed total laminate thickness range is 50-200μm.
The listed aluminum foil thickness range is 6-12μm.
The current listed maximum width is 2000mm, subject to the required laminate structure and thickness.
Yes. Custom gravure printing is available according to approved artwork and production requirements.
Yes. Both matte and glossy surface options are listed for this product.
Yes. Solid aluminum foil provides strong oxygen, moisture and light protection when the foil and finished package remain intact. Numerical OTR and WVTR requirements should be specified where controlled.
Yes. Suitable structures, particularly PA/AL/PE where additional puncture resistance is required, can be evaluated for vacuum packaging according to product shape, vacuum level, film thickness and sealing requirements.
A specifically qualified laminate can be developed for retort applications, but a standard three-layer structure should not automatically be assumed to withstand high-temperature sterilization. The sterilization cycle and required sealant system must be confirmed.
Standard PET/AL/PE flexible laminate is different from dedicated pharmaceutical blister lidding or cold-form foil. Pharmaceutical blister projects should specify the exact blister construction separately.
It can be evaluated for suitable medical and healthcare packaging where the laminate, sealing, sterilization and applicable regulatory requirements are defined and met.
Foil laminate can provide strong moisture protection, but electronics packaging requiring a specified moisture-barrier, ESD or shielding standard should use a construction tested to those requirements.
Not necessarily. Anti-static or static-dissipative performance requires an appropriate material construction and measurable electrical specification.
General three-layer flexible packaging film should not automatically be used for lithium-ion pouch cells. Battery pouch laminate requires dedicated materials and validated forming, electrolyte-resistance, insulation and heat-sealing performance.
Yes. Layer structure, total thickness, foil gauge, width, roll configuration, printing and surface finish can be customized according to application requirements.
The current listed lead time is approximately 10-20 days, depending on structure, printing, order quantity and production schedule.
Please provide the final application, PET/AL/PE, PET/AL/CPP or PA/AL/PE structure if known, total thickness, aluminum foil thickness, width, roll length or diameter, core size, winding direction, quantity, OTR/WVTR requirements, heat-sealing conditions, printing requirements, compliance requirements and delivery destination.
If you are sourcing PET/AL/PE, PET/AL/CPP or PA/AL/PE composite film for flexible packaging, vacuum packaging, industrial barrier bags, healthcare packaging or other high-barrier applications, send us your required structure, dimensions, barrier requirements and quantity for specification confirmation and quotation.
