PET/EVOH/PE High Barrier Thermoforming Sheet

Advanced Barrier Solution for MAP Food Packaging, Meat Trays and Seafood Packaging

For fresh food packaging, transparency is important — but extending shelf life requires more than appearance.

Fresh meat, seafood, cheese, ready meals and chilled foods are highly sensitive to oxygen transmission and moisture conditions.

WANSYN provides:

PET/EVOH/PE High Barrier Thermoforming Sheet

designed for:

• Modified Atmosphere Packaging (MAP)
• Fresh meat trays
• Seafood trays
• Ready meal containers
• Cheese packaging
• Chilled food applications

Through multilayer barrier technology, the structure combines:

PET Layer
+
EVOH Oxygen Barrier Layer
+
PE Sealing Layer

to provide a balance of:

✓ High transparency
✓ Oxygen barrier performance
✓ Reliable sealing
✓ Thermoforming stability
✓ Food packaging compatibility

What is PET/EVOH/PE High Barrier Sheet?

PET/EVOH/PE is a multilayer thermoforming sheet structure combining different material functions.

Typical structure:

PET
↓
EVOH Barrier Layer
↓
PE Heat Sealing Layer

Each layer provides a specific function:

PET Layer

Provides:

• Excellent transparency
• Mechanical strength
• Good thermoforming performance
• Product appearance

EVOH Layer

Provides:

• High oxygen barrier performance
• Reduced oxygen transmission
• Protection against oxidation

PE Layer

Provides:

• Heat sealing capability
• Compatibility with sealing films
• Flexible packaging performance

The combination creates a functional sheet solution for demanding food packaging applications.

Why Choose PET/EVOH/PE for Food Packaging?

1. High Oxygen Barrier Performance

Oxygen is one of the key factors affecting fresh food quality.

For products such as:

• Meat
• Seafood
• Cheese
• Ready meals

oxygen exposure may influence:

• Color stability
• Freshness
• Flavor
• Shelf life

The EVOH barrier layer helps reduce oxygen transmission and supports longer product protection.

2. Designed for MAP Packaging

Modified Atmosphere Packaging (MAP) requires:

• Stable oxygen barrier
• Reliable sealing
• Consistent forming
• Good package integrity

PET/EVOH/PE thermoforming sheets can be evaluated for MAP applications together with:

• Top lidding film
• Tray design
• Sealing parameters
• Gas mixture
• Storage conditions

3. Excellent Thermoforming Performance

Barrier materials must not only provide protection — they must also perform during forming.

WANSYN PET/EVOH/PE sheets are designed for:

• Vacuum forming
• Thermoforming
• Food tray production
• Customized packaging shapes

Key evaluation areas:

• Heating temperature
• Drawing depth
• Thickness distribution
• Corner forming
• Layer integrity after forming

4. Transparent Food Presentation

Unlike opaque barrier materials, PET-based structures allow customers to see the product.

This is important for:

• Premium meat packaging
• Seafood display
• Fresh food retail
• Supermarket chilled products

Typical Applications

Fresh Meat Packaging

Suitable for:

• Beef trays
• Pork packaging
• Chicken packaging
• Premium chilled meat

Benefits:

• Oxygen protection
• Better appearance retention
• Longer display potential

Seafood Packaging

Suitable for:

• Fish trays
• Shrimp packaging
• Frozen seafood packaging
• Chilled seafood

Advantages:

• Transparent display
• Barrier protection
• Stable tray performance

Ready Meal Packaging

Used for:

• Prepared meals
• Microwave meals
• Convenience food

Requirements:

• Good sealing
• Product protection
• Attractive appearance

Cheese & Dairy Packaging

Suitable for:

• Cheese trays
• Dairy products
• High-value chilled foods

PET/EVOH/PE vs Standard PET Sheet

PET/EVOH/PE Sheet Production Structure

Typical structure:

PET Outer Layer

↓

EVOH Barrier Layer

↓

PE Sealing Layer

↓

Food Contact Side

The final structure can be optimized according to:

• Barrier requirement
• Tray design
• Sealing film
• Food type
• Storage temperature
• Customer regulations

Key Technical Considerations

A successful high barrier packaging project requires more than selecting EVOH.

WANSYN evaluates:

Barrier Performance

Including:

• OTR (Oxygen Transmission Rate)
• WVTR (Water Vapor Transmission Rate)

under specific testing conditions.

Thermoforming Performance

Including:

• Forming depth
• Heating condition
• Thickness distribution
• Layer stability

Sealing Compatibility

Important parameters:

• Sealing temperature
• Seal strength
• Peel performance
• Contamination sealing

Food Contact Compliance

Depending on target market:

• EU food contact requirements
• FDA requirements
• Local regulations

Why Choose WANSYN PET/EVOH/PE Solution?

1. Thermoforming Packaging Experience

WANSYN focuses on functional sheets and rolls for:

• PET
• PP
• PS
• Barrier packaging structures

2. Functional Material Integration

Our product range includes:

• PET/PE laminated sheets
• PP/PE cold-resistant sheets
• PET/EVOH/PE barrier sheets
• Online PET functional films
• Printed and metallized PET materials

3. Application-Based Support

We support customers based on:

• Machine conditions
• Food application
• Tray design
• Sealing requirements
• Target market

Target Markets

PET/EVOH/PE high barrier sheets are especially suitable for markets with growing demand for:

• Fresh food packaging
• Meat processing
• Seafood export
• Ready meals
• Supermarket chilled products

RFQ Information

To recommend the suitable PET/EVOH/PE structure, please provide:

Application

□ Meat tray
□ Seafood tray
□ Ready meal
□ Cheese packaging
□ Other

Product Specification

• Sheet thickness:
• Width:
• Roll or sheet:
• Tray size:
• Thermoforming depth:

Packaging Requirement

• MAP required?
• Shelf life target?
• Storage temperature?
• Sealing film structure?

Market

• Country:
• Food contact requirement:

FAQ

Q1: What is PET/EVOH/PE high barrier sheet?

PET/EVOH/PE is a multilayer thermoforming sheet combining PET transparency, EVOH oxygen barrier performance and PE sealing functionality.

Q2: Is PET/EVOH/PE suitable for MAP packaging?

Yes. It can be evaluated for MAP applications where oxygen barrier and sealing performance are required.

Q3: Can PET/EVOH/PE be thermoformed?

Yes. The structure is designed for thermoforming applications such as trays and containers.

Q4: What EVOH percentage do you provide?

The EVOH content can be optimized according to barrier requirements and final application.

Q5: Can WANSYN provide samples?

Yes. Sample sheets or trial materials can be evaluated according to customer specifications.

Conclusion

PET/EVOH/PE high barrier thermoforming sheet provides a practical solution for modern food packaging applications requiring:

• Oxygen protection
• Transparent presentation
• Reliable sealing
• Thermoforming performance

From fresh meat and seafood to ready meals and chilled foods, WANSYN works with customers to develop suitable barrier sheet structures based on their packaging process.

Contact WANSYN for PET/EVOH/PE high barrier thermoforming sheet samples and technical evaluation.