Description

PET/VMPET/PE Laminated Film is a metallized flexible packaging structure combining a PET outer film, vacuum metallized PET (VMPET) and a PE inner sealing layer. The structure is designed for packaging applications that require a metallic appearance together with improved protection against light and enhanced barrier performance.

The PET outer layer provides mechanical strength and dimensional stability, while VMPET adds a reflective metallic surface and improves the barrier characteristics of the laminate. PE forms the inner heat-sealing layer and contributes flexibility to the finished packaging structure.

Compared with transparent PET/PE laminates, PET/VMPET/PE provides a different combination of appearance, light protection and barrier performance without using conventional aluminum foil.

What Is PET/VMPET/PE Laminated Film?

PET/VMPET/PE consists of three functional film layers:

PET / VMPET / PE

• PET: provides the outer support layer, strength and dimensional stability.
• VMPET: is vacuum metallized PET that provides a reflective metallic appearance and improves barrier performance.
• PE: provides the inner heat-sealing surface and contributes flexibility.

VMPET is produced by depositing a very thin layer of aluminum onto PET under vacuum conditions. The metallized PET film can therefore provide some of the visual and functional characteristics associated with metallic packaging while maintaining the flexibility of a polymer-based film structure.

How the PET/VMPET/PE Structure Works

PET Outer Layer

PET acts as the outer structural layer of the laminate. It provides good dimensional stability and mechanical strength and can support suitable printing and converting processes.

For printed packaging, the PET layer can be selected according to the required printing method and surface treatment.

VMPET Metallized Layer

The VMPET layer is the defining feature of this laminate.

VMPET is PET film with a vacuum-deposited aluminum coating. The metallized surface creates the familiar silver, reflective appearance used in many flexible packaging products.

In addition to its visual effect, the metallized layer can reduce the transmission of light and improve barrier performance against oxygen and moisture compared with many transparent plastic film structures.

The actual barrier level depends on the VMPET grade, metallization quality, film thickness, lamination process and final packaging structure.

PE Inner Layer

PE forms the inner layer of the laminate and provides the heat-sealing surface for suitable bag and pouch manufacturing processes.

The selected PE grade can be matched to the required sealing temperature, sealing strength, flexibility and packaging equipment.

In simple terms:

• PET: strength and dimensional stability
• VMPET: metallized appearance, light protection and enhanced barrier
• PE: heat sealing and flexibility

PET/VMPET/PE Structure

Layer	Material	Primary Function
Outer Layer	PET	Provides strength, dimensional stability and a suitable outer surface for printing.
Metallized Layer	VMPET	Provides metallic appearance, light protection and enhanced barrier properties.
Inner Layer	PE	Provides heat sealing and contributes flexibility to the finished laminate.

Why Choose PET/VMPET/PE Laminated Film?

The main reason to select PET/VMPET/PE is the combination of a strong PET outer film, a metallized barrier layer and a heat-sealable PE inner layer.

This structure can be useful when transparent packaging does not provide sufficient light protection or when the packaging design requires a metallic appearance.

It also offers an alternative to aluminum-foil-based laminates when the application does not require the highest level of barrier performance associated with foil structures.

Key Characteristics of PET/VMPET/PE

Characteristic	Description
Metallic Appearance	VMPET creates a bright silver and reflective packaging appearance.
Light Protection	The metallized layer reduces light transmission compared with transparent film structures.
Barrier Performance	VMPET can improve oxygen and moisture barrier performance compared with many non-metallized plastic structures.
Mechanical Strength	PET provides strength and dimensional stability for converting and handling.
Heat Sealing	PE provides the inner heat-sealing surface for suitable packaging processes.
Custom Printing	The structure can be designed for customized packaging graphics according to the selected film and printing process.

PET/VMPET/PE vs. PET/AL/PE

Both structures contain PET and PE, but the middle layer is different. PET/AL/PE uses aluminum foil, while PET/VMPET/PE uses metallized PET.

Feature	PET/VMPET/PE	PET/AL/PE
Middle Layer	VMPET	Aluminum foil
Metallic Appearance	Reflective metallic appearance	Opaque aluminum appearance
Light Protection	Good light-blocking capability depending on metallization	Very high light protection
Barrier Level	Enhanced barrier performance	Very high barrier performance
Flexibility	Flexible polymer-based structure	Flexible foil-based laminate
Typical Positioning	Metallized flexible packaging	High-barrier foil packaging

PET/VMPET/PE vs. BOPP/VMPET/PE

Both structures use VMPET as the metallized layer, but the outer film is different. PET provides different mechanical and dimensional characteristics from BOPP, so the appropriate structure should be selected according to the packaging application.

Feature	PET/VMPET/PE	BOPP/VMPET/PE
Outer Film	PET	BOPP
Metallized Film	VMPET	VMPET
Inner Layer	PE	PE
Key Difference	PET outer structure	BOPP outer structure

Applications of PET/VMPET/PE Laminated Film

PET/VMPET/PE can be used for flexible packaging applications where metallic appearance, light protection and enhanced barrier performance are required.

• Food packaging
• Snack and dry food packaging
• Pet food packaging
• Powder packaging
• Consumer product packaging
• Light-sensitive product packaging
• Printed stand-up pouches
• Flexible packaging bags

The final structure should be selected according to the packaged product, required barrier level, filling process, sealing equipment and applicable regulations.

Printing and Packaging Appearance

One advantage of VMPET is its reflective metallic appearance. The silver surface can create a distinctive visual effect for flexible packaging and can be combined with customized printing to produce branded packaging designs.

Depending on the printing method and laminate construction, the metallized layer can be positioned and treated to achieve different visual effects. Packaging designers should confirm the intended appearance with a production sample before placing a large order.

Barrier Performance Considerations

PET/VMPET/PE provides enhanced barrier performance compared with many transparent PET/PE or BOPP/PE structures, particularly for light protection and certain oxygen and moisture barrier requirements.

However, VMPET should not automatically be considered equivalent to aluminum foil. The actual oxygen transmission rate (OTR) and water vapor transmission rate (WVTR) depend on the metallization quality, film grade, thickness and converting process.

For applications requiring extremely high and consistent barrier performance, an aluminum foil laminate such as PET/AL/PE may be more appropriate.

Custom PET/VMPET/PE Laminated Film

Customization	Available Options
Film Structure	PET / VMPET / PE
Total Thickness	Customized according to application requirements
Film Width	Customized according to converting requirements
Roll Length	Customized according to order requirements
Printing	Custom printing according to packaging artwork

What Information Should You Provide for a Quote?

• Packaging application
• Required film structure
• Total thickness
• Film width
• Roll length
• VMPET film grade
• Printing requirements
• Finished bag or pouch dimensions
• Required barrier performance
• Sealing requirements
• Estimated order quantity

Frequently Asked Questions

What is PET/VMPET/PE laminated film?

PET/VMPET/PE is a three-layer flexible packaging laminate consisting of PET, vacuum metallized PET and PE. VMPET provides the metallic appearance and enhanced barrier function, while PE provides the heat-sealing layer.

What does VMPET mean?

VMPET stands for vacuum metallized polyethylene terephthalate. It is PET film coated with a thin layer of aluminum through a vacuum metallization process.

Is PET/VMPET/PE the same as PET/AL/PE?

No. PET/VMPET/PE uses metallized PET as the middle layer, while PET/AL/PE uses aluminum foil. The two structures have different barrier, appearance, flexibility and processing characteristics.

Is PET/VMPET/PE suitable for food packaging?

It can be used for suitable food packaging applications when the selected materials, adhesives, inks and finished packaging comply with the applicable requirements for the intended market and product.

Does PET/VMPET/PE block light?

The metallized VMPET layer can significantly reduce light transmission compared with transparent plastic films. The actual light-blocking performance depends on the selected VMPET grade and metallization quality.

Can PET/VMPET/PE be printed?

Yes. Customized printing can be incorporated into the packaging structure according to the selected film, printing method and artwork.

Can PET/VMPET/PE be customized?

Yes. Thickness, width, roll length, printing and other specifications can be customized according to the intended packaging application and converting requirements.

Request a Quote for PET/VMPET/PE Laminated Film

If you are sourcing PET/VMPET/PE laminated film for metallized flexible packaging, send ZXCOOL your required structure, thickness, width, roll length, printing requirements and intended application.

Contact ZXCOOL to discuss your PET/VMPET/PE laminated film requirements and request a customized quotation.