HSQY 0.05mm 0.06mm Food Grade Heated Sealing Film

CPET Tray Sealing Film Video

What Is Heat-Sealable Film for CPET Trays?

Heat-sealable film for CPET trays is PET-based lidding rollstock developed for ready-meal, airline-catering, bakery, frozen-food, and heat-and-serve packaging. The film must seal reliably to the actual CPET tray flange while providing the required peel, clarity, puncture, anti-fog, printing, freezer, microwave, or conventional-oven performance.

The current product is listed at 0.05–0.10mm thickness, with 150mm, 230mm, 280mm, and custom roll widths. The standard product information also lists easy-peel, optional anti-fog, custom printing, and a portfolio reference range of approximately –40°C to +220°C.

That temperature range should only be applied to the exact thermal grade that has been validated with the selected CPET tray, food, seal conditions, heating time, maximum temperature, venting method, inks, adhesive, and consumer instructions. It is not a universal rating for every generic BOPET/PE laminate.

Sealing Film Images

CPET tray sealing film specification reference

Heat-sealable film roll

Sealed CPET ready-meal tray

Tray sealing application

Why Use a Dedicated CPET Lidding Film?

• Tray-specific sealing: The heat-seal layer is selected for the actual CPET flange rather than assuming all trays use the same surface.

• Thermal dimensional stability: A qualified PET-based web can remain stable through the specified heating cycle.

• Controlled peel: Easy-peel, hard-peel, heat-release, or permanent seal behavior can be developed according to the meal and opening method.

• Frozen distribution: Selected grades can maintain puncture resistance and seal integrity at low temperature.

• Optional anti-fog: Supports clearer refrigerated display before heating.

• Custom printing: Logos, cooking instructions, ingredient information, barcodes, and traceability can be added.

• Production efficiency: Width, thickness, roll configuration, coefficient of friction, and seal window can be matched to the tray sealer.

• Application testing: The complete tray-and-film package can be tested for seal integrity, peel, heating, venting, and consumer opening.

How the Thermal Lidding Structure Works

Important Structure Verification

The current page describes the material as BOPET/PE while also claiming dual-ovenable performance up to 220°C. A generic PE sealant may not be suitable for that full conventional-oven exposure. Before publishing or quoting the maximum temperature, confirm the exact heat-seal polymer or coating, adhesive, layer thicknesses, and thermal test report for the finished film.

Where the supplied grade is actually a PET-based film with an amorphous PET or copolyester heat-seal layer, the product description and technical data sheet should state that structure accurately instead of calling every thermal film BOPET/PE.

CPET Tray Heat-Sealing Film Specifications

The table below retains the current commercial data while separating general product dimensions from thermal-grade performance. Final guaranteed values should be included in the approved technical data sheet.

What Does Dual-Ovenable Mean?

Dual-ovenable means the complete food package is qualified for both microwave and conventional-oven use under specified conditions. It does not mean every PET-based film can be placed in either appliance without restrictions.

Freezer-to-Oven Performance

The –40°C to +220°C range is widely associated with qualified CPET tray systems, but both the tray and lidding film must be validated. The package should be tested through the complete route from filling and sealing to freezing, distribution, thawing or direct heating, cooking, opening, and serving.

• Low-temperature puncture and impact resistance

• Seal retention after freezing and transport vibration

• Tray stacking and top-load performance

• Film shrinkage and wrinkling during heating

• Steam-pressure management and venting

• Ink and adhesive stability

• Peel force before and after heating

• Food oil, moisture, acidity, and contact conditions

• Hot-tray handling and consumer safety

Tray Compatibility

Easy Peel, Heat-Release Peel, and Lock Seal

How to Validate Peel Performance

Seal Window and Production-Line Validation

Reliable commercial sealing requires a workable range of temperature, pressure, and dwell time. The actual tray and production machine should be used to determine the lower and upper limits.

• Minimum seal-initiation temperature

• Maximum temperature before film or tray distortion

• Required pressure and dwell time

• Commercial line speed and tooling recovery

• Seal strength on every cavity and tray corner

• Peel force after cooling, freezing, and reheating

• Performance with oil, sauce, water, powder, and food particles on the flange

• Film tracking, cutting, registration, and roll-change performance

Seal Integrity and Leak Testing

Anti-Fog, High-Barrier, and Printed Options

Recyclability Considerations

The recyclability of the package depends on the actual film structure, tray, coating, sealant, adhesive, ink, labels, food residue, and local recycling infrastructure. A BOPET/PE laminate should not automatically be described as recyclable in every market because it contains different polymer families.

Where recycling is a priority, evaluate a compatible mono-PET or PET-dominant tray-and-lidding system and confirm it against the destination market’s current design-for-recycling requirements.

Typical Applications

• Frozen and chilled ready meals

• Airline, railway, and institutional catering meals

• CPET bakery and dessert trays

• Central-kitchen and contract-packed foods

• Supermarket prepared meals and deli products

• Microwave meals using validated venting or peel-back instructions

• Conventional-oven meals using qualified CPET trays and ovenable film

• Dual-ovenable meals for microwave and conventional-oven use

• MAP ready meals using a separately specified high-barrier film

Explore HSQY's CPET tray sealing film category, CPET tray range, and complete lidding film range.

Information Required for an Accurate Quotation

1. Tray supplier, product code, CPET grade, layer structure, drawing, or physical sample

2. Tray dimensions, flange width, compartments, fill weight, and peel-tab design

3. Film thickness, width, roll length, core ID, maximum outer diameter, roll weight, and winding direction

4. Easy peel, hard peel, heat-release peel, self-venting, or lock-seal requirement

5. Food type, oil, moisture, acidity, sauce, powder, filling temperature, and flange contamination

6. Chilled, frozen, microwave, conventional-oven, or dual-ovenable process

7. Maximum temperature, heating time, appliance power, and whether the lid remains attached

8. Venting, piercing, peel-back, or removal instructions

9. Tray-sealing machine brand, model, tooling layout, commercial speed, temperature, pressure, and dwell time

10. Anti-fog, OTR, WVTR, MAP gas mixture, printing, eye marks, coding, or perforation requirements

11. Required food-contact, migration, thermal, barrier, quality, and destination-market documents

12. Sample quantity, annual volume, delivery destination, and launch schedule

Request CPET Film Samples and Pricing

Customization Services

• Custom 0.05–0.10mm thickness and tolerance

• Standard 150mm, 230mm, and 280mm widths plus custom slitting

• Custom roll length, core, roll weight, maximum outer diameter, and unwind direction

• Mono-CPET, coextruded CPET, coated CPET, and other tray-specific sealing grades

• Easy-peel, hard-peel, heat-release, self-venting, and lock-seal structures

• Anti-fog, high-barrier, MAP, freezer, microwave, conventional-oven, and dual-ovenable development

• Flexographic or gravure printing for branding, instructions, and traceability

• Custom eye marks, print repeats, transparent windows, coding areas, laser perforation, and slit vents

• Tray compatibility, seal-window, peel-force, thermal-cycle, leak, barrier, and production-line trials

• Custom cartons, roll labels, pallet marks, and international delivery

Quality and Compliance Documentation

HSQY can provide available technical, inspection, and quality-management documentation for the approved film grade. Buyers should request the technical data sheet, complete layer structure, certificate of analysis, food-contact declaration, migration or compliance reports, thermal test conditions, peel-force method, and roll inspection criteria.

ISO 9001 is a quality-management-system certification and should not be presented as product-specific food-contact approval. SGS or food-contact claims should identify the exact grade, report number, tray, food type, temperature, time, and intended conditions of use.

Global Exhibitions

Frequently Asked Questions About CPET Sealing Film

What is heat-sealable film for CPET trays?

It is PET-based lidding rollstock with a heat-seal layer or coating selected to bond to a compatible CPET tray flange.

Is this product a lidding film or a rigid tray lid?

It is flexible rollstock lidding film used on a heat-sealing machine, not a rigid snap-on lid.

Can every BOPET/PE film withstand 220°C?

No. The exact sealant, adhesive, ink, coating, tray, food, temperature, and heating time must be validated before claiming 220°C oven use.

What does dual-ovenable mean?

It means the complete package has been qualified for both microwave and conventional-oven use under specified conditions.

Can the lid remain on during cooking?

Only when the approved film, tray, venting method, food, and instructions permit lid-on cooking. Other grades must be pierced, vented, peeled back, or removed.

Can the film seal PP and PET trays as well as CPET?

Not automatically. PP, PET, PE-coated, and CPET sealing surfaces may require different heat-seal chemistries or a specifically qualified universal grade.

What is the difference between easy peel and heat-release peel?

Easy peel opens with controlled force under normal conditions. Heat-release peel is designed to become easier to remove after a validated heating cycle.

Is anti-fog available?

Yes. An anti-fog grade can be developed for chilled display before heating.

Can high barrier be added?

Yes. EVOH or another barrier layer can be used when a specified OTR, WVTR, MAP gas mixture, and shelf life are required.

Is the film freezer safe to -40°C?

Selected grades can be developed for frozen distribution, but low-temperature impact, puncture, seal retention, stacking, thawing, and peel must be tested.

What widths are available?

The current page lists 150mm, 230mm, and 280mm widths, with custom widths available.

What thicknesses are available?

The current product range is listed at approximately 0.05–0.10mm, or 50–100μm.

Can the film be custom printed?

Yes. Printing can include branding, ingredients, cooking instructions, barcodes, QR codes, and traceability.

What is the minimum order quantity?

The current stated MOQ is 500kg. Sample and trial quantities depend on width, structure, printing, and material availability.

Can I request samples and production trials?

Yes, subject to material availability. Provide the tray, food application, heating process, machine details, roll dimensions, and required seal behavior.

About HSQY Plastic Group

HSQY Plastic Group supplies CPET tray heat-sealable films, CPET ready-meal trays, easy-peel and lock-seal films, anti-fog films, high-barrier lidding films, PET and PP tray films, plastic sheets, and related food-packaging products for international B2B customers.

The team can support tray compatibility, thermal-grade selection, peel and venting development, anti-fog and barrier requirements, roll conversion, printing, samples, production-line trials, quality documentation, export packing, and international delivery.

Contact HSQY for CPET Tray Sealing Film