PA/PP Medium Barrier Retort Film for Food Packaging
HSQY PA/PP medium barrier retort film is a multilayer co-extruded flexible packaging film designed for food applications requiring heat resistance, puncture resistance, reliable heat sealing and moderate gas-barrier performance.
The current film structure is PA/TIE/PA/TIE/PP/PP/PP. Polyamide layers provide mechanical strength and puncture resistance, while polypropylene layers provide heat-sealing functionality, moisture resistance and suitability for elevated-temperature food packaging processes.
HSQY currently lists thicknesses from 0.045mm to 0.35mm and widths from 160mm to 2600mm, with customized dimensions and clear or customized appearance available according to packaging requirements.
Typical applications include retort food packaging, cooked-food packaging, vacuum packaging, refrigerated and frozen foods, ready meals and other food products requiring a durable PA/PP flexible packaging structure.
PA/PP Medium Barrier Retort Film Images
![PA PP medium barrier retort food packaging film roll]( "PA PP Medium Barrier Retort Film")
PA/PP Retort Film
![PA PP high temperature flexible food packaging film]( "PA PP High Temperature Food Packaging Film")
High-Temperature Food Packaging Film
![PA PP medium barrier composite retort film]( "Medium Barrier Composite Retort Film")
Medium Barrier Composite Film
PA/PP Medium Barrier Retort Film Specifications
The following specifications are based on the current HSQY product information. Final roll dimensions, film structure, retort conditions and performance requirements should be confirmed before commercial production.
| Property |
Details |
| Product Name |
PA/PP Medium Barrier Retort Film |
| Brand |
HSQY |
| Product Type |
Flexible Food Packaging Film / Retort Film |
| Structure |
PA/TIE/PA/TIE/PP/PP/PP |
| Number of Layers |
7-Layer Structure |
| Barrier Level |
Medium Barrier |
| Color |
Clear, Custom |
| Width |
160mm–2600mm, Custom |
| Thickness |
0.045mm–0.35mm / 45–350μm, Custom |
| Primary Application |
Food Packaging |
| Processing |
Retort / High-Temperature Processing Subject to Selected Grade and Validation |
| Typical Packaging Formats |
Thermoforming Film, Retort Film, Vacuum Packaging and Flexible Food Packaging |
| Typical Lead Time |
10–14 Working Days Depending on Specification and Quantity |
Important: The current HSQY page identifies this product as a retort and high-temperature-resistant film but does not provide a specific validated retort temperature, pressure or dwell time. Confirm the applicable technical data for the exact film grade before specifying a retort cycle.
7-Layer PA/PP Retort Film Structure
The current HSQY film uses a PA/TIE/PA/TIE/PP/PP/PP multilayer structure. Each material performs a different function in the finished flexible packaging film.
| Layer |
Main Function |
| PA / Nylon |
Provides mechanical strength, toughness, puncture resistance and moderate gas-barrier performance. |
| TIE Layer |
Provides interlayer adhesion between otherwise incompatible polymer layers. |
| PP / Polypropylene |
Provides sealing functionality, moisture resistance, chemical stability and elevated-temperature performance. |
| Complete Structure |
Balances mechanical durability, formability, sealing and medium-barrier performance for food packaging applications. |
Medium Barrier vs. High Barrier PA/PP Retort Film
Medium-barrier and high-barrier retort films should not be treated as the same product. The correct structure depends on the packaged food, oxygen sensitivity, required shelf life, retort process and storage conditions.
| Comparison |
PA/PP Medium Barrier Film |
EVOH High Barrier Film |
| Barrier Level |
Medium |
Higher oxygen-barrier requirement |
| Core Barrier Material |
PA-based barrier contribution |
Typically incorporates EVOH for enhanced oxygen barrier |
| Typical Selection |
Foods that do not require the highest available oxygen barrier |
Oxygen-sensitive products or longer shelf-life requirements |
| Final Selection |
Confirm based on food, process and shelf-life target |
Confirm OTR and full packaging requirements |
Key Features of PA/PP Retort Film
1. High-Temperature Packaging Capability
The PA/PP structure is designed for food packaging applications involving elevated temperatures. The exact permissible retort temperature and exposure time should be confirmed for the selected HSQY grade.
2. Medium Gas Barrier
Polyamide contributes useful gas-barrier performance for food products that require more protection than a basic PP structure but do not require a dedicated EVOH high-barrier layer.
3. Puncture Resistance
PA layers provide mechanical strength and puncture resistance, which is useful for meat, cooked food and other products that can place physical stress on flexible packaging.
4. Heat-Sealing Performance
The polypropylene sealing layers support heat sealing and help maintain package integrity. The appropriate temperature, pressure and dwell time depend on the film specification and packaging equipment.
5. Moisture Resistance
PP contributes moisture resistance, supporting food packaging applications involving sauces, juices and other moisture-containing products.
6. Flexible and Durable
The multilayer structure combines flexibility with mechanical strength for rollstock processing, thermoforming and flexible food packaging.
7. Clear Product Presentation
Clear film options provide product visibility, while customized versions can be discussed according to packaging and branding requirements.
8. Wide Customization Range
HSQY currently lists widths from 160mm to 2600mm and thicknesses from 45μm to 350μm, with customized specifications available.
What Is Retort Packaging Film?
Retort packaging film is a heat-resistant flexible packaging material designed for foods that undergo thermal processing after packaging. The sealed package is exposed to elevated temperature and pressure to achieve the required food-processing conditions.
A suitable retort film must maintain its mechanical properties, seal integrity and package functionality throughout the specified thermal process and subsequent distribution and storage.
The actual temperature, pressure and time depend on the food product, sterilization target, package geometry and film structure. The finished package should therefore be validated under the customer's actual processing conditions.
PA/PP Retort Film Applications
PA/PP retort film can be evaluated for food products requiring high-temperature processing, durable sealing and moderate oxygen-barrier performance.
Ready Meals: Flexible packaging for prepared meals requiring thermal processing and subsequent storage.
Cooked Meat: Suitable structures can be considered for cooked meat and processed meat products requiring puncture resistance and reliable sealing.
Soups and Sauces: Moisture-resistant sealing layers can support suitable liquid and semi-liquid food packaging applications.
Seafood: PA/PP structures can be evaluated for cooked or processed seafood packaging according to required barrier and retort conditions.
Pet Food: Retortable flexible films may be used for suitable wet pet-food packaging when the selected film meets the required processing conditions.
Frozen and Refrigerated Foods: The current HSQY page also lists frozen and refrigerated packaging applications.
Vacuum Packaging: PA/PP film can be evaluated for suitable vacuum and thermoforming packaging applications according to the exact film grade.
Retort Film Processing Considerations
Successful retort packaging requires more than selecting a heat-resistant film. The complete food, film, sealing and thermal process should be evaluated as one packaging system.
Retort Temperature: Specify the actual maximum processing temperature required by your food process.
Processing Time: Provide the expected heating and holding duration.
Pressure Conditions: Retort pressure and counter-pressure requirements can affect flexible package performance.
Seal Strength: Evaluate seal integrity before and after thermal processing.
Food Composition: Oil, fat, salt, acid and moisture content can influence packaging requirements.
Package Geometry: Film thickness and forming properties should match the depth, shape and weight of the packaged product.
Shelf-Life Requirement: Select medium- or high-barrier film according to oxygen sensitivity and the required finished-product shelf life.
How to Choose PA/PP Retort Film
Food Product: Identify the packaged product, such as meat, seafood, ready meals, soup, sauce or pet food.
Barrier Level: Confirm whether medium barrier is sufficient or whether the product requires an EVOH-based high-barrier structure.
Retort Cycle: Provide the target processing temperature, time and pressure.
Film Thickness: Select according to product weight, forming depth, puncture risk and package rigidity.
Roll Width: Specify the width required by your thermoforming or packaging machine.
Forming Requirement: Provide forming depth and package dimensions when using the film as a forming web.
Sealing Requirement: Provide sealing equipment and required seal characteristics.
Shelf-Life Target: Share the required storage conditions and finished-product shelf life.
Information Needed for a Fast Retort Film Quote
1. Food product
2. Required film thickness
3. Required roll width
4. Retort temperature
5. Retort time and pressure
6. Forming depth and package dimensions
7. Packaging machine brand and model
8. Required barrier or shelf-life target
9. Order quantity
10. Destination country or shipping port
Quality and Certification Documentation
Food packaging projects may require technical data sheets, material test reports, food-contact documentation and quality certificates. Contact HSQY to confirm which documents apply to the exact PA/PP retort film grade being purchased.
Food-contact or regulatory claims should be verified against the specific product grade and destination market rather than assumed from general company certificates.
![HSQY PA PP retort film quality certification documentation]( "HSQY Flexible Packaging Certification Documentation")
International Exhibitions
![HSQY 2024 Mexico Exhibition]( "2024 Mexico Exhibition")
2024 Mexico Exhibition
![HSQY 2025 Philippines Exhibition]( "2025 Philippines Exhibition")
2025 Philippines Exhibition
![HSQY 2024 Paris Exhibition]( "2024 Paris Exhibition")
2024 Paris Exhibition
![HSQY 2023 Saudi Exhibition]( "2023 Saudi Exhibition")
2023 Saudi Exhibition
![HSQY 2024 American Exhibition]( "2024 American Exhibition")
2024 American Exhibition
![HSQY 2017 Shanghai Exhibition]( "2017 Shanghai Exhibition")
2017 Shanghai Exhibition
![HSQY 2018 Shanghai Exhibition]( "2018 Shanghai Exhibition")
2018 Shanghai Exhibition
![HSQY 2023 American Exhibition]( "2023 American Exhibition")
2023 American Exhibition
Production and Packing
![HSQY PA PP retort film production]( "PA PP Retort Film Production")
Flexible Film Production
![HSQY PA PP composite film roll]( "Retort Film Roll")
Retort Film Roll
![HSQY retort film packing]( "Flexible Packaging Film Packing")
Film Packing
Packing and Delivery
Sample Packaging: Small film rolls are packed in protective boxes for sample shipment.
Bulk Packing: Rolls are wrapped in PE film or kraft paper according to transportation requirements.
Pallet Packing: Current product information lists approximately 500–2000kg per plywood pallet.
Container Loading: Current product information lists approximately 20 tons per container, subject to roll dimensions and loading configuration.
Delivery Terms: EXW, FOB, CNF and DDU are currently listed.
Lead Time: Generally 10–14 working days according to current product information, depending on specification and quantity.
Frequently Asked Questions
What is PA/PP retort film?
PA/PP retort film is a multilayer food packaging film combining polyamide for mechanical strength and puncture resistance with polypropylene for sealing, moisture resistance and elevated-temperature performance.
What is the structure of this HSQY retort film?
The current HSQY specification lists a 7-layer PA/TIE/PA/TIE/PP/PP/PP structure.
Is PA/PP film suitable for retort food packaging?
This product is specifically positioned by HSQY as a high-temperature-resistant retort film. The exact permissible processing temperature, pressure and time should be confirmed for the selected film grade before commercial use.
Can this PA/PP film withstand 121°C retort sterilization?
The current HSQY page does not publish a validated 121°C retort cycle. If your process requires 121°C or another specific temperature, provide the required time and pressure so HSQY can confirm compatibility for the selected grade.
What is the difference between medium barrier and high barrier retort film?
Medium-barrier PA/PP relies primarily on PA for gas-barrier contribution, while higher-barrier structures can incorporate EVOH or other barrier layers to further reduce oxygen transmission. Film selection depends on food sensitivity and shelf-life requirements.
What thicknesses are available?
The current HSQY specification lists thicknesses from 0.045mm to 0.35mm, equivalent to approximately 45–350μm, with customized options available.
What roll widths are available?
HSQY currently lists widths from 160mm to 2600mm, with customized roll dimensions available according to packaging-machine requirements.
Can PA/PP retort film be thermoformed?
The current product information lists suitability for thermoforming packaging. Required forming depth, thickness and machine conditions should be provided when requesting a film recommendation.
Can PA/PP film be used for vacuum packaging?
Vacuum packaging is listed among the current applications. Final film selection should consider the packaged food, puncture risk, barrier requirement and storage conditions.
What foods can be packed in PA/PP retort film?
Potential applications include ready meals, cooked meats, seafood, soups, sauces, suitable pet foods and other products requiring durable heat-resistant flexible packaging.
What sealing temperature should I use?
There is no universal sealing temperature for every PA/PP structure. The correct sealing window depends on film thickness, sealing layer, machine, pressure and dwell time and should be established through production testing.
Does retort processing affect seal strength?
Elevated temperature and pressure can place significant stress on a flexible package. Seal performance should therefore be evaluated before and after the intended retort process.
When should I choose an EVOH high barrier retort film instead?
An EVOH-based structure should be considered when the product requires substantially lower oxygen transmission or a higher oxygen-barrier level than a standard PA/PP medium-barrier structure can provide.
Can HSQY customize the film thickness and width?
Yes. The current product information lists customized width and thickness options within production capabilities.
Can I request samples for retort testing?
Contact HSQY with your required thickness, width, food application, retort cycle and packaging machine to confirm suitable sample availability.
What information should I provide for a quotation?
Provide the food product, thickness, width, forming depth, retort temperature, retort time, packaging machine, barrier requirement, quantity and destination.
Why Choose HSQY for PA/PP Retort Film?
Multilayer Film Structure: The current medium-barrier retort product uses a defined 7-layer PA/TIE/PA/TIE/PP/PP/PP structure.
Custom Dimensions: Film width and thickness can be discussed according to packaging machine and product requirements.
Medium and High Barrier Options: Different multilayer structures can be selected according to the required oxygen-barrier level.
B2B Packaging Supply: HSQY supplies flexible packaging materials for food processors, packaging converters, distributors and commercial packaging projects.
About HSQY Plastic Group
HSQY Plastic Group supplies flexible packaging films, high-barrier materials, plastic sheets and food packaging products to B2B customers in international markets.
For PA/PP medium-barrier retort film, high-temperature food packaging film or customized thermoforming rollstock, send HSQY your required film dimensions, food application, retort conditions, machine information and quantity for evaluation and quotation.
