Our technology

A family formulation, now patented.

GreenPlast resin is our own water soluble PVA formulation, developed through years of research in Coimbatore and refined in-house for clarity and durability. Every pouch, film and bag we make starts here.

  • Patent 508991granted 9 February 2024
  • CIPET testedISO 17088
  • In productionsince 2019
GreenPlast water soluble PVA resin pellets in 25 kg bags, with white, yellow and green pellets

Our story

Years of research, one patent.

GreenPlast began as a family formulation. Research started in Coimbatore in 2015, and after years of refining the recipe for clarity and durability, our first commercial products followed in 2019.

In February 2024 the Patent Office, Government of India granted Patent No. 508991 for our advanced transparent water soluble PVA pellets, the resin every GreenPlast product is made from.

We use our resin pellets only to make our own products; we do not sell them separately. Our hot water soluble resin has also been exported to Europe. Today we use it to make pouches, cold and hot water soluble film, garment bags and laundry bags in our Coimbatore plant.

From our resin pellets to finished bags, in our Coimbatore plant.

Two grades

Cold water or hot water, from the same resin.

Cold water soluble

Dissolves in water at room temperature. Used for sachets, pouches, agrochemical and dye packs, cistern tablets and washing pods.

Cold water soluble PVA film ›
Typical propertyValue
Tensile strength12 to 18 MPa
Elongation at break150 to 200%
Surface resistivity107.5 to 1010 ohm/cm² (anti-static)
Oxygen transmission0.0235 mL/100 in²/day
Solubility at 80°C200 g/L
ToxicityNon-toxic

Independent test

Tested by CIPET to ISO 17088.

CIPET is the Central Institute of Petrochemicals Engineering and Technology, Government of India. Our 35 micron film was tested from May 2023 to February 2024 (report 231132, March 2024).

TestMethodGreenPlast resultRequired
BiodegradationISO 14855-191.04% in 165 daysMore than 90% within 180 days
Disintegration (left on 2 mm sieve after 84 days)ISO 202001.83%10% or less
Seed emergence, paddy and tomatoOECD 20891% and 92%More than 90% of control
Earthworm survival and growthISO 11268-1 and 11268-292% to 97%More than 90% of control
Heavy metalsIS 3025All well within limitsIS 17899

The full report is shared with buyers on request.

After use

It dissolves, then it breaks down.

In water, GreenPlast film dissolves completely. In soil or compost it breaks down into carbon dioxide, water and biomass, with no microplastics left behind.

In CIPET's plant growth test, paddy and tomato seeds grew normally in compost made with our film. The photos show our own trial: seedlings grown in soil watered with dissolved film.

Seedlings growing in pots watered with dissolved GreenPlast film, shown at three stages
Seedlings grown with water containing dissolved GreenPlast film.
GreenPlast film breaking down in a pot of soil
GreenPlast film breaking down in soil.

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