
We've started experimenting with larger pieces of fabric to see if we could re-create the water repellency seen on earlier swatches. Using fairtrade, organic 100% cotton, handwoven in India, the above image shows the fabric ,prior to processing, with water stains. Droplets of water sprinkled on fabric were absorbed within 20 seconds.


Above are pictures of black and white fabrics after water-repellent processing. It works and the fabric still retains its breathability and orignal handle.
The process uses a water-based emulsion without high heat input, waste water can be safely exuded into the mains without further processing.
So far, it looks like the white fabric responds better to the process than the black, with water droplets rolling off easily. The water droplets on the black fabric showed a mix result. Could it be due to the varying amounts of emulsion used (less on black than white) or that the black dye forms a layer which makes the process less successful?
Further tests will be carried out, stay tuned for new updates.