HSQY Compostable PLA/PBAT Film for Food Packaging

Compostable PLA/PBAT Film for Food Packaging

HSQY PLA/PBAT film is a biodegradable polymer-blend film developed for food packaging and other applications that require a balance of flexibility, processability and compostability potential.

PLA, or polylactic acid, contributes stiffness and bio-based content, while PBAT, or polybutylene adipate terephthalate, is a flexible biodegradable polyester that can reduce the brittleness associated with neat PLA. By adjusting the formulation, converters can target different levels of flexibility, toughness, transparency and processing performance.

The current HSQY product specification covers thicknesses from 0.02mm to 0.2mm and widths up to 1000mm. Food-packaging applications can include flexible film structures and, where an appropriate thermoforming grade and thickness are selected, selected thermoformed packaging applications.

Compostability, food-contact compliance, heat resistance and processing behavior are formulation-specific. Buyers should confirm the exact PLA/PBAT ratio, additives, finished-film thickness, certification standard and intended disposal environment before making claims such as “certified compostable” or “food-contact compliant.”

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What Is PLA/PBAT Film?

PLA/PBAT film is produced from a blend containing polylactic acid (PLA) and polybutylene adipate terephthalate (PBAT), usually together with formulation-specific additives required for processing and finished-product performance.

PLA is a polyester that can be produced from renewable feedstocks such as fermented plant sugars. It provides useful stiffness and transparency but can be comparatively brittle in some film applications.

PBAT is a flexible biodegradable polyester. Blending PBAT with PLA can improve elongation, toughness and flexibility, which is why PLA/PBAT compounds are widely investigated and used for compostable flexible packaging, bags, films and selected thermoformed products.

The exact performance depends heavily on the formulation. Two materials both described as “PLA/PBAT” can have significantly different stiffness, elongation, sealing behavior, heat resistance, transparency and compostability certification.

PLA vs PBAT in a Compostable Film Blend

PLA/PBAT Film Specifications

The following information is based on the current HSQY product specification. Buyers should request a product-specific technical data sheet before approving the material for commercial production.

Why Blend PLA with PBAT?

Improved Flexibility

Neat PLA can be comparatively stiff and brittle for some flexible packaging applications. Adding PBAT can increase flexibility and elongation, depending on formulation.

Improved Toughness

A properly designed PLA/PBAT blend can offer improved toughness compared with neat PLA, making the material more suitable for film handling, converting and selected packaging applications.

Adjustable Stiffness

Changing the polymer ratio and additives allows manufacturers to tune stiffness and flexibility for different end uses. The actual PLA/PBAT ratio should therefore be treated as an important purchasing parameter.

Compostable Packaging Potential

PLA/PBAT systems can be formulated into certified compostable packaging. Certification applies to a defined formulation and finished article and should not be inferred solely from the polymer names.

Biodegradable vs Compostable PLA/PBAT Film

“Biodegradable” and “compostable” are not interchangeable marketing terms.

The current HSQY source does not identify a specific compostability certificate for this exact film. A certificate should therefore be requested and verified before publishing a claim such as “EN 13432 certified,” “BPI certified” or “home compostable.”

Industrial Composting Conditions Matter

Industrial composting uses controlled temperature, moisture, oxygen and biological activity. The behavior of a compostable film in these conditions should not be used to imply that it will rapidly disappear in soil, seawater, landfill or the natural environment.

End-of-life claims should therefore specify the intended composting environment and the applicable certification rather than using unsupported statements such as “breaks down quickly everywhere.”

PLA/PBAT Film for Food Packaging

Fresh Produce Packaging

Appropriate PLA/PBAT film grades can be evaluated for fruit, vegetables and other fresh-food packaging where flexibility, transparency and the required gas transmission characteristics match the application.

Bakery Packaging

Films can be considered for selected bakery packaging formats where moisture transmission, seal behavior and shelf-life requirements are compatible with the material structure.

Flexible Food Packaging

Flexible PLA/PBAT grades can be converted into suitable packaging films depending on required printability, heat sealing, transparency, toughness and barrier performance.

Thermoformed Trays and Containers

Thermoforming requires a formulation and sheet gauge specifically designed to develop sufficient melt strength, forming stability and finished-container rigidity. Buyers requiring trays, clamshells or lids should specify that the material must be a thermoforming grade rather than assuming every thin PLA/PBAT flexible film can be thermoformed into a rigid package.

Flexible Film Grade vs Thermoforming Grade

Heat Sealing and Converting Requirements

Commercial food packaging requires more than basic biodegradability. Converters should also evaluate sealing, printing, winding and machine performance.

Barrier Performance and Food Shelf Life

A PLA/PBAT film should not automatically be described as a high-barrier food-packaging film. Oxygen and water-vapor barrier properties depend on polymer formulation, thickness, additives, coatings, orientation and any multilayer structure.

If the packaged food requires a defined shelf life, buyers should provide required oxygen transmission rate (OTR), water vapor transmission rate (WVTR), storage temperature, relative humidity and package format.

Shelf life should be validated using the finished package and actual food rather than inferred solely from the fact that a film contains PLA and PBAT.

Is PLA/PBAT Film Food Safe?

PLA/PBAT formulations can be manufactured for food-contact packaging, but the polymer names alone do not establish regulatory compliance.

Food-contact compliance depends on the exact resin grades, additives, colorants, coatings and intended conditions of use. Buyers should request documentation relevant to the destination market and intended food-contact conditions.

If the film will contact fatty, acidic, aqueous or alcoholic foods, or will be exposed to elevated temperatures, include those conditions in the compliance review.

PLA/PBAT Film Applications

Food Packaging Film

Flexible grades can be evaluated for selected food-packaging applications according to sealing, mechanical, transparency and barrier requirements.

Fresh Fruit and Vegetable Packaging

Produce packaging requires suitable gas and moisture transmission characteristics. Perforation or other package design may also be required depending on respiration rate.

Thermoformed Food Trays

Appropriate thicker thermoforming grades can be evaluated for trays and food containers. Forming capability should be validated according to sheet gauge, mold geometry and process conditions.

Clamshell and Retail Packaging

Where sufficient stiffness, transparency and forming performance are achieved, PLA/PBAT sheet can be considered for selected formed retail packaging.

Agricultural Applications

The source page also references agricultural uses such as seedling trays and protective coverings. Agricultural biodegradation requirements can differ from packaging compostability requirements, so a dedicated application grade and applicable test standard should be confirmed.

PLA/PBAT vs PLA Film

PLA/PBAT vs Conventional PE Packaging Film

Important PLA/PBAT Film Quality Parameters

How to Choose a PLA/PBAT Packaging Film

1. Define the Packaging Format

Specify flexible film, bag, pouch, lidding structure, thermoformed tray, clamshell or another format before choosing the material grade.

2. Specify Film Thickness

Provide the target thickness and tolerance. A 20μm flexible film and a 200μm forming sheet have very different processing and mechanical requirements even though both fall within the current product range.

3. Define Flexibility and Strength

Provide required tensile strength, elongation, puncture resistance or an existing reference film so the PLA/PBAT formulation can be evaluated.

4. Define Food and Shelf-Life Requirements

State the food type, packing temperature, storage temperature and target shelf life. Add OTR and WVTR requirements where barrier performance is critical.

5. Specify Heat-Sealing Requirements

Provide packaging-machine type, sealing temperature, line speed and required seal strength when the film will be heat sealed.

6. Specify Compostability Standard

Tell HSQY whether your customer requires industrial compostability, home compostability or another end-of-life standard and specify the destination country.

7. Confirm Food-Contact Regulations

Specify the destination market and intended food-contact conditions so the relevant product documentation can be reviewed.

Information Needed for a PLA/PBAT Film Quote

To receive an accurate material recommendation and quotation, provide:

• Flexible film or thermoforming application

• Required thickness and tolerance

• Required roll width

• Transparent or custom color

• Required PLA/PBAT ratio or performance target

• Required tensile strength and elongation

• Required transparency or haze

• Food type and storage temperature

• Required shelf life

• OTR / WVTR requirement if applicable

• Heat-sealing or thermoforming equipment

• Printing or surface-treatment requirement

• Industrial or home compostability requirement

• Required food-contact documentation

• Order quantity and annual demand

• Destination country and port

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Quality and Certification Documentation

The current page contains a certification image, but the body content does not identify which certificates apply specifically to this PLA/PBAT formulation.

Before using claims such as EN 13432 certified, ASTM D6400 compliant, BPI certified, home compostable or FDA/EU food-contact compliant, buyers should obtain the relevant current document and confirm that its product code, thickness range and manufacturing specification cover the material being purchased.

HSQY Global Exhibitions

2024 Mexico Exhibition

2025 Philippines Exhibition

2024 Paris Exhibition

2023 Saudi Exhibition

2024 American Exhibition

2017 Shanghai Exhibition

2018 Shanghai Exhibition

2023 American Exhibition

Production and Packing

Roll dimensions, core size, winding direction, roll weight, pallet configuration and moisture-protection requirements should be agreed according to the customer's converting equipment and international shipping conditions.

Production Line 1

Production Line 2

Warehouse

FAQ About PLA/PBAT Film

What is PLA/PBAT film?

PLA/PBAT film is made from a polymer blend containing polylactic acid and polybutylene adipate terephthalate. PLA contributes stiffness while PBAT can improve flexibility and toughness.

Is PLA/PBAT film biodegradable?

PLA/PBAT blends can be formulated for biodegradation under specified conditions. The exact environmental conditions, formulation and applicable test method should be identified when making a biodegradability claim.

Is PLA/PBAT film compostable?

PLA/PBAT packaging can be designed to meet compostability standards, but certification applies to the specific formulation and finished article. Request the applicable certificate before marketing the film as certified compostable.

Is PLA/PBAT film home compostable?

Not automatically. Home compostability is different from industrial compostability and requires its own applicable testing and certification.

Is PBAT made from renewable raw materials?

Conventional PBAT is generally fossil-derived even though it is biodegradable. PLA is commonly the bio-based component in a PLA/PBAT blend. The total bio-based percentage therefore depends on the exact formulation.

What thickness of PLA/PBAT film does HSQY supply?

The current HSQY specification lists thicknesses from 0.02mm to 0.2mm.

What is the maximum PLA/PBAT film width?

The current product specification lists a maximum width of 1000mm. Available width should be confirmed for the selected thickness and formulation.

Can PLA/PBAT film be used for food packaging?

Yes, suitable PLA/PBAT formulations can be produced for food-packaging applications. Food-contact compliance must be confirmed for the exact material and destination market.

Can PLA/PBAT film be thermoformed?

Suitable PLA/PBAT thermoforming grades can be formed into selected trays and containers. Not every thin flexible-film formulation is suitable for rigid thermoforming, so the application must be specified before grade selection.

Can PLA/PBAT film be heat sealed?

Many compostable film formulations can be designed for heat sealing. The actual sealing temperature, pressure, dwell time and seal strength should be validated on the intended packaging equipment.

Can PLA/PBAT film be printed?

Printing capability depends on surface energy, treatment and ink system. Specify the printing process so an appropriate film surface specification can be evaluated.

Is PLA/PBAT film high barrier?

Not automatically. High oxygen or moisture barrier requires a formulation, coating or multilayer structure specifically designed and tested for the target OTR and WVTR.

Can PLA/PBAT film replace PE film directly?

Not in every application. PLA/PBAT and PE differ in sealing behavior, mechanical properties, heat resistance, barrier performance and end-of-life options. Packaging trials should be conducted before conversion.

What compostability standards should buyers ask for?

The required standard depends on the destination market and disposal claim. Examples commonly encountered in the market include EN 13432 and ASTM D6400, but buyers should request certification applicable to the exact supplied product rather than assuming compliance.

Can I request a PLA/PBAT film sample?

Sample evaluation is recommended before commercial production to check film stiffness, flexibility, transparency, sealing, printing, thermoforming or other converting performance.

What information should I send for a PLA/PBAT film quotation?

Provide thickness, width, packaging application, food type, converting process, mechanical requirements, heat-sealing conditions, compostability standard, food-contact requirements, order quantity and destination market.

About HSQY Plastic Group

HSQY supplies plastic sheets, films and food-packaging materials for converters, packaging manufacturers, distributors and foodservice-related businesses.

PLA/PBAT projects can be evaluated according to film thickness, width, formulation, mechanical properties, transparency, heat sealing, thermoforming, barrier requirements, compostability certification and food-contact documentation.

For replacement-material projects, provide an existing film sample or technical specification together with the packaging process and annual volume so HSQY can evaluate the appropriate PLA/PBAT film grade.

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