Biodegradable PLA+PBAT Film

Biodegradable PLA+PBAT Film

PLA+PBAT film is biodegradable, compostable, and fully recyclable


Biodegradable, Compostable and Fully Recyclable

The PLA+PBAT film is the most common biodegradable film commercialized in various demanding market, which actually contains PLA (poly lactic acid) (70~85%) blended with polybutylene adipate terephthalate (PBAT) (10~20%) and plasticizer (2~10%). With great mechanical strength, physical stability, great sealing performance and printability, this film is now extending its packaging application for more and more products.


Here, in this post, we are going to guide our customers with a better understanding on this film, and try to assist the customers to achieve the ideal compostable packages for their lovely products.

To Name The Film Correctly

Due to different understanding on this blended film, some people may just call it PLA Film, as actually PLA (Poly Lactic Acid) occupies the largest content of its formulation. 

Actually, there are two kinds of biopolymer resins in this formulation, with PBAT not able to be neglected, so usually for industries, the professionals will call it PLA+PBAT film, which is able to describe the film in a better understanding.

Plasticizer is added into the formulation, which works as the aid agent in the manufacturing process, which enables the final film with optimized property, such as silicon dioxide in producing traditonal plastic film, so people usually do not mention it when trying to name the final film.



PLA polymers, usually abbreviated from Poly Lactic-acids, are biodegradable polyesters synthesized from lactic acid (short as LA) or 2-hydroxy propionic acid, which can usually be obtained by bacterial fermentation of carbohydrates from agricultural plants like cassava, potatoes and corns. It is the first polymer based on renewable raw materials commercialized at a large scale. About decades ago, the use of PLA film in packaging applications was very few because of its high prices. Along with the discoveries of new pathways of polymerization and advances in manufacturing technologies, the cost of PLA polymer has been dropping dramatically, which can be commercialized as the compostable packages for more and more products, like dried fruits, snacks, coffee beans, biscuits, tea, conditments, as the list is still extending.

PBAT (short for Polybutylene Adipate Terephthalate), is a bio-degradable copolymer, specifically a copolyester with random structure of adipic acid, 1,4-butanediol and terephthalic acid. It is usually made from renewable resources such as sugar cane and corn starch, which enables it finding more applications in packaging area and consumer goods, as consumers and businesses look for more sustainable solutions. The flexibility and toughness of PBAT makes it ideal for blending with another biodegradable polymer that is strong and rigid for biodegradable film production. 

As to the PLA+PBAT film we adapt in our converting business, the film is actally a blend of PLA and PBAT polymer, with specific additives and plasticizer, to achieve the expected properties in the commercial market.

So, we name it PLA+PBAT Film.

How is PLA+PBAT Film Produced?

Blown Processing

The blown film extrusion process is now extending manufacturing films made from standard polymer to biodegradable polymers. Blendes of PLA and PBAT polymer are automatically supplymented to the hopper, and then be heated under high temperature, and extruded to thick film bubbles and expanded under the well-controlled air pressure. Air is used to blow the bubble to size. Extruder screw, puller, and winder speeds are increased to provide the desired throughput rate and film gauge. 

PLAT+PBAT film with thickness ranging from 30 to 150 microns and maximum web width up to 1,250mm are now being achieved with the current blown lines in China.

Certificates on PLA+PBAT Film


OK Compost TUV Sign

This film is ceritificated home compostable by third-inspection entity TUV, and you may get a sample film of our own for your own tests.

FDA Compliance

We hereby commit our film will be in compliance with FDA regulations, and thir-party inspection is available on customer’s request.

How to print on PLA+PBAT Film

Rotogravure Printing

Complicated artwork design can be printed onto the surface of PLA+PBAT film with the highest standard of color consistency. We are offering gravure printing services up to 10 colors to finalize your great logo onto the packages.

Flexographic Printing

Water-based inks are available for the flexo printing onto PLA+PBAT film, which is able to present a better sustainability for the final packages. Just reach us if you have your artwork well finished for printing.

Multi-layer Lamination

The surface of PLA+PBAT film can be enabled with great wetting tension, which is usually achieved by corona treatment. It can then be laminated with other compostable film material, such cellulose, kraft paper, BOPLA film, metallized paper, to achieve multi-fucntional foils, and then converted into various of packages. 

Nowadays, PLA+PBAT film is finding more and more products in packaging areas.


Tests under Laboratory Conditions

Tensile Strength

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Elongation Rate

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Anti-puncture Strength

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Burst Impact Strength

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Sealing Strength

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Coefficient of Friction

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Barrier Performance

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Tear Strength

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Technical Data Sheet of PLA+PBAT Film

We try to revert to you with reliable information

The values stipulated in the data sheet is against the test recorded by videos, and you may watch the video for more understanding.

Biodegradation behavior in nature soil conditions

A piece of foil laminate kraft Paper/PLA+PBAT was buried under soil dated on Nov 26, 2021. After being buried in soil under nature conditions for 18 months, Kraft paper fully vanished under the biodegradation process, PLA+PBAT film is actually damaged on the surface under the activities of micro-organisms, with a lowered thickness, however the large majority of the film still exists. It proves that PLA+PBAT film will actually need a longer period to fully break down to inorganic elements under nature soild conditions


Fourishing Applications

Along with the sharps drops of the price for PLA and PBAT polymers, more and more products starts to shift to the compostable packages based on PLA+PBAT film. 

Coffee Beans
Hand Wash
Toothpaste Tablets
Dry Nuts
Dog Poos
Coffee Pod
Bakery Items
Pet Treats


An increasingly sustainable future

Protecting the environment requires far-reaching projects, that’s why Brasilmoka is always looking for new ways to improve.

We have a plan in the pipeline that will help us further reduce emissions by shifting to a fleet of electric vans. Moreover, our dedication to innovation in packaging aims at reducing our environmental impact and promoting the use of state-of-the-art materials.

Keep in close touch with updates on coffee packaging