PET/AL/PE Lamination Film

PET/AL/PE High-Barrier Lamination Film Manufacturer

HSQY manufactures PET/AL/PE high-barrier lamination films for coffee, tea, snacks, dried foods, powders, spices, nutritional products, pet food, pharmaceutical sachets and moisture-sensitive industrial packaging.

PET/AL/PE is a multilayer flexible packaging structure consisting of an outer polyethylene terephthalate film, a middle aluminum foil barrier and an inner polyethylene heat-sealing layer.

The PET layer provides mechanical strength, dimensional stability and a printable surface. The aluminum foil provides the primary barrier against oxygen, water vapor and light. The PE layer provides flexibility, product-contact protection and heat-sealing performance.

The laminate is opaque because it contains true aluminum foil. Unprinted material normally has a silver metallic appearance, while finished packaging can be reverse printed with customized colors, graphics, product information and branding.

HSQY publishes a total thickness range of approximately 0.045mm to 0.35mm and widths from approximately 160mm to 2600mm. Actual production feasibility depends on the individual layer thicknesses, aluminum foil gauge, printing width, lamination process, slitting capability, roll diameter and packaging-machine requirements.

PET/AL/PE film can be supplied as printed or unprinted roll stock and converted into sachets, flat pouches, center-seal bags, gusseted bags, stand-up pouches and other customized flexible packaging formats.

Standard PET/AL/PE should not automatically be used for retort sterilization, boiling or other high-temperature processing. Retort applications require a dedicated high-temperature structure, sealant and adhesive system.

Explore additional metal lamination films and custom-printed composite films for flexible packaging applications.

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PET/AL/PE Lamination Film Images

What Is PET/AL/PE Lamination Film?

PET/AL/PE lamination film is a flexible packaging material produced by bonding polyester film, aluminum foil and polyethylene film or coating into a single multilayer structure.

The structure is selected when a product requires stronger protection against oxygen, moisture and light than an ordinary transparent plastic laminate can normally provide.

The films are normally bonded using a dry-lamination, solvent-free-lamination, extrusion-lamination or another approved converting process according to the required structure and performance.

Final package performance depends on the individual films, aluminum foil thickness, adhesive, curing conditions, PE sealant formulation, printing system, package shape and sealing quality.

Structure of PET/AL/PE Lamination Film

PET Outer Layer

The outer PET film provides tensile strength, dimensional stability, abrasion resistance and a smooth surface for high-quality printing.

Reverse printing places the ink between the PET film and the next layer, helping protect the printed graphics from direct abrasion during converting, transportation and consumer handling.

Aluminum Foil Barrier Layer

The aluminum foil provides the primary barrier against oxygen, water vapor, ultraviolet light and visible light.

Foil thickness should be selected according to the required barrier, package flexibility, folding resistance, puncture risk and cost.

Pinhole condition, creasing, flex cracking and package damage can reduce the effective barrier of the finished laminate and should be evaluated during testing.

PE Inner Heat-Sealing Layer

The PE inner layer provides flexibility and enables the laminate to form a heat seal during bag making, filling or final package closure.

The sealant formulation should be selected according to the product, fill temperature, oil or powder contamination, sealing temperature, pressure, dwell time, line speed and required seal strength.

Laminating Adhesive

Adhesive bonds the PET, aluminum foil and PE layers together and directly affects lamination strength, chemical resistance, aging, odor and temperature performance.

The adhesive system and curing conditions must be suitable for the food, filling process, storage period and intended temperature conditions.

PET/AL/PE Lamination Film Specifications

Key Features of PET Aluminum Foil PE Film

• High barrier protection: Aluminum foil provides strong protection against oxygen, water vapor and light.

• Aroma retention: The structure helps reduce the loss of volatile aromas from coffee, tea, spices and powdered products.

• Opaque light barrier: The foil layer protects light-sensitive products and creates a metallic appearance.

• Printable outer surface: PET supports detailed graphics, branding, barcodes and product information.

• Heat-sealing performance: The PE layer supports pouch making and final package sealing.

• Mechanical reinforcement: PET helps protect the aluminum foil from ordinary stretching and handling stresses.

• Moisture and grease resistance: The inner structure can be selected for dry, oily or aromatic products.

• Custom converting: The film can be slit, printed and converted into multiple packaging formats.

PET/AL/PE vs. Other High-Barrier Structures

Barrier Performance and Aluminum Foil Integrity

Aluminum foil is the main barrier layer, but finished-package barrier performance cannot be determined from the material name alone.

Actual oxygen and water-vapor transmission depend on the foil thickness, pinholes, lamination quality, folding, flex cracking, pouch seals, valves, zippers and any mechanical damage.

OTR and WVTR values should be measured using the final approved laminate and agreed temperature and humidity conditions.

Heat-Sealing Performance

Heat-sealing performance depends on the PE sealant formulation, sealing temperature, pressure, dwell time, jaw design and packaging-line speed.

Powder, oil, spice particles or product residue in the seal area can reduce seal strength and increase leakage risk.

• Determine the heat-seal initiation temperature.

• Define the validated operating seal window.

• Measure seal strength at room and storage temperatures.

• Evaluate hot-tack strength on high-speed packaging lines.

• Test sealing through expected powder, oil or moisture contamination.

• Inspect channel leaks, wrinkles, burns and seal distortion.

• Perform burst, vacuum, dye-penetration or another agreed integrity test.

Is PET/AL/PE Film Suitable for Retort Packaging?

Standard PET/AL/PE film should not automatically be used for retort sterilization, high-temperature boiling or pressure cooking.

Retort packaging normally requires a heat-resistant inner sealant such as CPP or RCPP, a retort-grade adhesive and an outer structure capable of maintaining bond strength and package integrity during heat, pressure and moisture exposure.

Possible retort structures include PET/AL/RCPP, PET/NY/AL/RCPP and other project-specific laminates.

The final package must be validated using the actual food, acidity, oil content, sterilization temperature, sterilization time, pressure, cooling process and shelf-life target.

PET/AL/PE Film for Coffee Packaging

PET/AL/PE is commonly selected for whole-bean coffee, ground coffee and instant coffee because the foil layer provides protection against oxygen, moisture and light.

Freshly roasted coffee releases carbon dioxide after roasting. Whole-bean coffee packaging may therefore require a one-way degassing valve that allows gas to leave the bag while reducing external oxygen entry.

• Whole-bean, ground or instant coffee format.

• Coffee roast date and degassing profile.

• Required shelf life and storage temperature.

• One-way degassing valve requirement.

• Zipper, tin tie or other reclosure requirement.

• Bag format and net weight.

• Aroma retention and oxygen target.

• Drop, burst and transport testing.

Applications of PET/AL/PE Lamination Film

• Coffee packaging: Whole beans, ground coffee, instant coffee and single-serve products.

• Tea packaging: Loose-leaf tea, tea powders, herbal tea and sachets.

• Snack packaging: Nuts, dried fruit, crackers, chips, cookies and fried foods.

• Powder packaging: Milk powder, protein powder, nutritional powder, drink mixes and seasoning powders.

• Spices and ingredients: Herbs, flavorings, yeast, additives and moisture-sensitive ingredients.

• Pet food packaging: Dry pet food, pet treats, supplements and powdered animal nutrition.

• Pharmaceutical packaging: Tablets, capsules, powders and granules using an approved pharmaceutical structure.

• Medical packaging: Moisture-sensitive products subject to cleanliness and application-specific validation.

• Industrial packaging: Electronic components, chemicals, desiccants and moisture-sensitive materials.

Roll Stock and Packaging Formats

PET/AL/PE film can be supplied as roll stock for flexible packaging converters, pouch manufacturers and automatic filling lines.

• Vertical form-fill-seal roll stock.

• Horizontal form-fill-seal roll stock.

• Stick-pack and sachet film.

• Three-side-seal pouches.

• Four-side-seal pouches.

• Center-seal and fin-seal bags.

• Flat pouches.

• Side-gusset and quad-seal bags.

• Stand-up pouches.

• Zipper, valve and custom-accessory pouches.

Custom Printing and Artwork Requirements

Custom reverse printing can be applied to the PET layer for branding, regulatory information, barcodes, preparation instructions and decorative graphics.

Food-Contact and Regulatory Requirements

Food-contact suitability depends on the final approved laminate rather than only the PET, aluminum foil or PE material names.

The assessment should include the PET film, PE sealant, aluminum foil treatment, laminating adhesive, printing ink, pigment, primer, additive and manufacturing process.

Buyers should identify the food type, direct or indirect contact, filling temperature, storage temperature, contact duration, intended heating process and destination market.

Applicable documents may include a declaration of compliance, formulation statement, migration test report, residual-solvent report and supporting regulatory information.

SGS should be described according to the exact test performed. A general SGS or ISO certificate does not independently establish food-contact, retort, barrier or shelf-life performance.

Pharmaceutical and Industrial Packaging

Pharmaceutical, medical and industrial packaging may require tighter controls than ordinary food and dry-goods packaging.

• Batch traceability and change control.

• Cleanliness and contamination controls.

• Extractables and migration evaluation.

• Residual-solvent limits.

• Moisture and oxygen barrier validation.

• Puncture, flex-crack and seal-integrity testing.

• Accelerated and real-time stability studies.

• Product-specific regulatory documentation.

Recyclability and Alternative Structures

PET/AL/PE is a multi-material laminate containing polyester, aluminum, polyethylene and adhesive.

These layers are difficult to separate in conventional mechanical recycling systems, so the package should not automatically be described as recyclable.

Actual recovery options depend on local collection, sorting, specialized recycling processes, inks, adhesives, accessories and the complete package design.

Alternative structures such as mono-PE, mono-PP, transparent coated barrier film or metallized film can be evaluated when recyclability, lower weight or product visibility is a project priority.

Recommended Quality-Control Tests

• Material structure and layer identification.

• Total thickness and individual layer thickness.

• Aluminum foil gauge and pinhole inspection.

• Roll width, length, diameter, weight and core size.

• Winding direction, roll tension, telescoping and edge alignment.

• Tensile strength, elongation and puncture resistance.

• Flex-crack resistance.

• Lamination bond strength.

• Curing and residual-solvent testing.

• Printing color, registration and repeat length.

• Ink adhesion, rub resistance and blocking.

• OTR and WVTR under specified conditions.

• Light-transmission or opacity testing where required.

• Heat-seal initiation temperature.

• Seal strength and hot-tack performance.

• Seal-through-contamination testing.

• Burst, drop, compression and leak testing.

• Valve, zipper and accessory integrity testing.

• Migration testing where applicable.

• Storage and shelf-life validation.

• Packing, pallet and container-loading inspection.

Information Required for a PET/AL/PE Film Quote

• Packaged product and net weight.

• Food, pharmaceutical or industrial application.

• Required shelf life and storage conditions.

• Filling temperature and sealing temperature.

• Any boiling, pasteurization or retort process.

• Required OTR, WVTR and light-barrier target.

• Preferred PET, foil and PE layer thicknesses.

• Required total thickness and tolerance.

• Film width and width tolerance.

• Packaging format and finished bag dimensions.

• Packaging-machine manufacturer and model.

• Machine speed and sealing-jaw configuration.

• Core diameter and maximum roll diameter.

• Maximum roll weight.

• Printing artwork and color count.

• Repeat length, eye mark and winding direction.

• Valve, zipper, spout or tear-notch requirement.

• Destination market and required compliance documents.

• Initial order quantity and annual forecast.

• Packing, destination port and requested delivery date.

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Certificates and Quality Documents

Available documents may include technical data sheets, safety data sheets, food-contact declarations, migration reports, restricted-substance reports, residual-solvent reports and quality-management certificates.

Each document should correspond to the final PET/AL/PE structure, printing system, adhesive, PE sealant, manufacturing location and intended conditions of use.

A general company certificate should not be treated as proof of a specific OTR, WVTR, retort rating, food-contact condition or package shelf life.

HSQY Global Exhibitions

HSQY presents flexible packaging films, lidding films, food trays, plastic sheets and customized packaging solutions at international exhibitions.

Production and Packing

Packing and Delivery

Sample packing: Small rolls and film samples can be packed in protective bags, cartons or rigid boxes.

Bulk roll packing: Rolls can be wrapped with protective PE film, kraft paper, moisture-resistant material or another agreed packaging method.

Core and roll protection: Paper cores, roll ends and film edges can be protected according to roll weight and shipment requirements.

Pallet packing: Approximately 500-2000kg can be packed on a plywood or fumigation-free pallet, depending on roll dimensions and handling limits.

Container loading: A reference loading quantity is approximately 20 tons, subject to roll specification, pallet design and legal container-weight limits.

Storage: Store the film in clean, dry indoor conditions away from direct sunlight, excessive heat, moisture, dust and strong odors.

Delivery terms: EXW, FOB, CNF, CIF, DDU and other agreed Incoterms can be discussed.

Lead time: Standard production generally requires approximately 10-14 working days after structure, printing, artwork, quantity and payment are confirmed.

Why Choose HSQY as Your PET/AL/PE Film Supplier?

• PET, aluminum foil and PE high-barrier structures.

• Customized layer thicknesses and total film thickness.

• Printed and unprinted roll stock.

• Custom reverse printing and metallic design effects.

• Customized film width, core, roll diameter and winding direction.

• Structures for coffee, food powder, pet food and industrial packaging.

• Samples and trial rolls for machine and sealing tests.

• Barrier, bond, printing and seal-test support.

• Custom pouch and flexible packaging formats.

• Export packing and international B2B delivery support.

Before bulk production, HSQY recommends testing the selected laminate using the customer's actual product, packaging machine, sealing conditions, storage conditions and finished package format.

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Frequently Asked Questions About PET/AL/PE Film

What is PET/AL/PE lamination film?

It is a multilayer flexible packaging material consisting of a PET outer layer, an aluminum foil barrier and a PE heat-sealing layer.

What does each PET/AL/PE layer do?

PET provides strength and printability, aluminum foil provides the main oxygen, moisture and light barrier, and PE provides flexibility and heat sealing.

Is PET/AL/PE film transparent?

No. True aluminum foil is opaque, so the unprinted laminate normally has a silver metallic appearance.

What products can be packed in PET/AL/PE film?

Common applications include coffee, tea, snacks, nuts, dried food, spices, nutritional powders, pet food, pharmaceuticals and moisture-sensitive industrial products.

Is PET/AL/PE suitable for coffee packaging?

Yes. It provides light, oxygen and moisture protection. Freshly roasted whole-bean coffee may also require a one-way degassing valve.

Does PET/AL/PE provide a complete oxygen barrier?

Aluminum foil provides a very strong oxygen barrier, but actual finished-package performance depends on foil pinholes, flex cracking, seals, valves, zippers and package damage.

What are OTR and WVTR?

OTR measures oxygen transmission, while WVTR measures water-vapor transmission. Both values must identify the test method, temperature, humidity and laminate structure.

Why can aluminum foil laminates lose barrier performance?

Pinhole defects, repeated folding, flex cracking, delamination, puncture and poor package seals can reduce effective barrier performance.

What is the difference between PET/AL/PE and PET/VMPET/PE?

PET/AL/PE uses true aluminum foil and generally provides a stronger light, oxygen and moisture barrier. PET/VMPET/PE uses a thin metallized coating and is normally lighter and more economical.

Is PET/AL/PE suitable for retort sterilization?

Standard PET/AL/PE should not automatically be used for retort. Retort packaging normally requires a dedicated CPP or RCPP sealant and retort-grade adhesive.

Can PET/AL/PE film be boiled?

Boiling use requires a specially designed structure, adhesive and sealant layer. Standard film should not be rated as boilable without testing.

Can PET/AL/PE film be microwaved?

A laminate containing aluminum foil should not be placed in a microwave unless the complete packaging system and consumer instructions have been specifically approved for that use.

Can PET/AL/PE film be custom printed?

Yes. Logos, product information, barcodes, instructions and decorative graphics can be reverse printed on the PET layer.

Can part of the aluminum appearance remain visible?

Yes. Artwork can use printed white areas, colored areas and unprinted metallic-effect areas according to the approved design.

What widths are available?

The published range is approximately 160mm to 2600mm, but final availability depends on the laminate structure, printing, foil thickness and converting equipment.

What thicknesses are available?

The published total thickness range is approximately 0.045mm to 0.35mm. Each layer should be selected according to the product and package requirements.

Can the core and winding direction be customized?

Yes. Core diameter, roll diameter, roll weight, printed-side orientation and winding direction can be matched to the packaging machine.

Is PET/AL/PE film food safe?

Food-contact suitability depends on the complete PET, foil, adhesive, ink and PE structure and the intended food, temperature, duration and destination market.

Does SGS certification prove that every PET/AL/PE film is food grade?

No. An SGS report is relevant only when it covers the exact laminate, applicable regulation and intended conditions of use.

Is PET/AL/PE film recyclable?

It is a multi-material laminate that is difficult to separate in conventional recycling systems. Actual recovery depends on specialized local infrastructure.

Are recyclable alternatives available?

Mono-PE, mono-PP, transparent coated barrier and metallized-film structures can be evaluated when technically suitable.

Can PET/AL/PE be used for pharmaceutical sachets?

Yes, using a pharmaceutical-grade structure and appropriate barrier, migration, cleanliness, stability and regulatory validation.

Are samples or trial rolls available?

Existing samples or trial rolls may be available for checking structure, printing, sealing, roll tracking and packaging-machine compatibility.

What information is required for a quotation?

Provide the packaged product, shelf life, film structure, layer thicknesses, width, printing, bag format, machine details, core, winding, quantity and destination.

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About HSQY Plastic Group

HSQY Plastic Group supplies PET/AL/PE lamination film, metal lamination films, color-printed composite films, lidding films, food trays and customized flexible packaging materials to international B2B customers.

HSQY supports food manufacturers, coffee brands, pet-food producers, pharmaceutical companies, flexible packaging converters, importers and distributors with structure development, printing, samples, quality inspection and export packing.

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