Description

BOPP/CPP/PE Laminated Film is a three-layer flexible packaging structure combining biaxially oriented polypropylene (BOPP), cast polypropylene (CPP) and polyethylene (PE). Each layer can be selected to perform a different function within the finished packaging material.

BOPP forms the outer layer and contributes stiffness, dimensional stability and packaging appearance. CPP provides an intermediate polypropylene-based layer with flexibility and sealing characteristics, while PE can provide the inner heat-sealing surface and additional flexibility.

This multilayer construction can be considered for packaging manufacturers that require more flexibility in balancing outer-film performance, sealing behavior and overall package characteristics than a simple two-layer laminate can provide.

What Is BOPP/CPP/PE Laminated Film?

BOPP/CPP/PE consists of three polymer film layers:

BOPP / CPP / PE

• BOPP: outer layer providing stiffness, dimensional stability and a suitable packaging surface.
• CPP: intermediate polypropylene-based layer contributing flexibility and sealing characteristics.
• PE: inner layer providing flexibility and heat-sealing performance.

The exact performance of the finished laminate depends on the film grades, thicknesses, lamination process and intended packaging application.

How the Three Layers Work Together

BOPP Outer Layer

BOPP is used as the outer layer where a relatively stiff and stable packaging surface is required. It can also provide a suitable surface for packaging graphics depending on the selected grade and printing process.

CPP Middle Layer

CPP can be incorporated as an intermediate polypropylene-based film layer to modify the mechanical and sealing characteristics of the laminate. Its role can vary according to the specific film grade and overall construction.

Using CPP as a separate layer also allows the packaging structure to be designed around the characteristics required by the converting process.

PE Inner Layer

PE forms the inner side of the structure and provides the heat-sealing surface for suitable packaging applications. PE can also contribute flexibility to the finished laminate.

In simple terms:

• BOPP: outer appearance, stiffness and dimensional stability
• CPP: intermediate polypropylene-based functional layer
• PE: inner flexibility and heat sealing

BOPP/CPP/PE Three-Layer Structure

Layer	Material	Primary Function
Outer Layer	BOPP	Provides stiffness, dimensional stability and the outer packaging surface.
Middle Layer	CPP	Contributes flexibility and polypropylene-based film characteristics.
Inner Layer	PE	Provides flexibility and heat-sealing performance.

Why Use Three Layers Instead of Two?

A two-layer laminate can be sufficient for many packaging applications, but some projects require more control over the relationship between outer-film properties, flexibility and sealing performance.

A three-layer structure allows different films to be assigned different functions. Instead of asking one inner film to provide every required property, CPP and PE can be combined within the construction to achieve the characteristics required by the packaging application.

This makes BOPP/CPP/PE useful for projects where a simple BOPP/PE structure does not provide the preferred balance of processing and finished-package characteristics.

Key Characteristics

Property	Contribution of the Structure
Outer Stiffness	BOPP provides a relatively stiff and stable outer film.
Dimensional Stability	The oriented BOPP outer layer contributes dimensional stability during converting.
Flexibility	CPP and PE can contribute flexibility to the inner portion of the structure.
Heat Sealing	PE provides the inner heat-sealable surface for suitable packaging processes.
Multilayer Design	Three separate film layers provide more flexibility when designing the packaging structure.

BOPP/CPP/PE vs. BOPP/PE

The main difference is the additional CPP layer. BOPP/PE uses two films, while BOPP/CPP/PE uses three layers to provide more options when balancing the properties of the laminate.

Consideration	BOPP/CPP/PE	BOPP/PE
Number of Layers	3	2
Outer Layer	BOPP	BOPP
Additional Layer	CPP	None
Inner Layer	PE	PE
Design Flexibility	More options for adjusting layer functions	Simpler two-layer construction

BOPP/CPP/PE vs. BOPP/CPP

Both structures contain BOPP and CPP, but BOPP/CPP/PE adds a separate PE inner layer. This can be useful when the packaging project requires a specific PE sealing surface or additional flexibility.

Feature	BOPP/CPP/PE	BOPP/CPP
Structure	BOPP / CPP / PE	BOPP / CPP
Number of Layers	3	2
Inner Material	PE	CPP
Sealing Layer	PE	CPP
Structure Design	Three-layer construction with separate CPP and PE layers	Simpler two-layer construction

Applications of BOPP/CPP/PE Laminated Film

BOPP/CPP/PE can be evaluated for flexible packaging applications where a multilayer structure is required.

• Flexible packaging bags
• Packaging pouches
• Dry product packaging
• Consumer product packaging
• Printed packaging
• General flexible packaging applications

The appropriate film structure should be selected according to the packaged product, filling process, sealing equipment and required finished-package performance.

Printing and Converting

The BOPP outer layer can be used for suitable packaging printing applications. Film surface treatment, ink compatibility and the selected printing method should be considered during product development.

The laminated film can be supplied in roll form for further operations such as slitting, bag making and pouch production.

Custom BOPP/CPP/PE Laminated Film

Customization	Available Options
Film Structure	BOPP / CPP / 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 film thickness
• Film width
• Roll length
• Printing requirements
• Finished bag or pouch dimensions
• Sealing method
• Packaging machine information
• Estimated order quantity

Frequently Asked Questions

What is BOPP/CPP/PE laminated film?

BOPP/CPP/PE is a three-layer flexible packaging structure consisting of BOPP, CPP and PE. BOPP forms the outer layer, CPP provides an intermediate functional layer, and PE forms the inner heat-sealing layer.

Why add CPP between BOPP and PE?

A separate CPP layer can provide additional flexibility in designing the mechanical and processing characteristics of the laminate. The exact benefit depends on the selected film grades and the intended packaging application.

Is BOPP/CPP/PE heat sealable?

Yes. The PE inner layer provides the heat-sealing surface when the selected material and sealing conditions are appropriate for the packaging process.

Can BOPP/CPP/PE be printed?

Yes. The BOPP outer layer can be used for suitable packaging printing applications according to the selected film grade and printing process.

Can the thickness of each layer be customized?

Layer thickness can be discussed according to the required structure, film performance and production requirements. The final specification should be confirmed according to the intended application.

Request a Quote for BOPP/CPP/PE Laminated Film

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

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