Synthetic textiles are the largest single source of primary microplastics reaching the ocean, and most of it leaves through a washing machine outlet. TradeShield catches it there and weighs it.
A filter that nobody measures is a filter nobody can claim. The section above shows the three parts that matter: a 20 µm micro-mesh fine enough to catch fibre rather than lint, an acoustic back-wash that keeps the cake from choking an 80 kg machine mid-cycle, and a sealed sludge chamber on load cells so the trapped mass is a measurement rather than an estimate.
Environmental claims collapse when the evidence is a spreadsheet the claimant controls. Here the mass reading is taken inside a microcontroller enclave, differential pressure and load-cell series are signed at source, and the resulting removal credit carries a signature a textile brand can hand to a regulator instead of a summary.
| Dimension | Unmeasured filtration | TradeShield |
|---|---|---|
| capture | unknown, changes as the cake builds | 96.8% at ≥ 20 µm, back-washed continuously |
| evidence | self-reported estimates | signed mass and pressure series at source |
| claim | a summary nobody can verify | Ed25519 removal certificate, per brand |
| disposal | sludge to drain or landfill, unquantified | weighed cartridge, 142.4 kg per month |
git clone https://github.com/KELLERBABG/TradeShield.git cd TradeShield && cargo test