Student project · Sethu Institute of Technology

Farm sacks woven from an invasive tree

EcoWeave turns Karuvelam bark into natural fiber and weaves biodegradable sacks to replace plastic farm sacks.

EcoWeave

One waste problem, one overlooked resource

Plastic sacks pile up

Rice, pulses and other produce are mostly packed in plastic sacks. After use they become plastic waste that pollutes soil and water.

Karuvelam goes unused

Karuvelam (Prosopis juliflora) is an invasive tree found widely across Tamil Nadu. Its bark is rarely used as a fiber.

EcoWeave connects the two: a tree that is easy to find becomes the material for sacks that can replace plastic.

How EcoWeave works

Four steps from tree to sack. Tap a step to read it.

EcoWeave vs plastic sacks

What we aim for, and what we still need to prove.

Plastic sackEcoWeave sack
Made fromPlastic (petroleum-based)Karuvelam bark fiber
After useStays as plastic wasteDesigned to biodegrade
Raw materialFossil fuelInvasive tree, widely available
StrengthWell establishedTesting is our next step
CostLow todayTo be worked out in the prototype stage

We list strength and cost honestly as open questions. We will publish results once we test.

Who it is for

Farmers, farmer producer organisations, rice and pulse mills, and agri traders who pack produce in bulk.

A local supply chain also means local work: bark collection, fiber processing and weaving.

Our roadmap

  1. Fiber sampleDone. We have a Karuvelam fiber sample.
  2. Strength testsNext. Check how strong the fiber is.
  3. Prototype sackWeave and stitch a first sack.
  4. Farmer pilotTry the sack with real produce and get feedback.

Questions people ask

Is the sack tested yet?

Not yet. We have a fiber sample, and strength testing is our next step.

Why Karuvelam?

It is invasive, grows widely in Tamil Nadu and is rarely used for fiber, so it is a low-cost local raw material.

Is the sack biodegradable?

It is made from natural bast fiber, which is designed to biodegrade, unlike plastic. We will verify this as we build the prototype.

Can I try it on my farm or mill?

Yes. Join the pilot list below and tell us what you pack.

Team

Third-year B.Tech Information Technology students at Sethu Institute of Technology.

  • Vishali G
  • Shakthi Nethra S
  • Nishanth M
  • Yuvaraj T

Join our pilot list

Farmer, mill, trader or mentor? Tell us who you are.