Each fabric has a unique absorption spectrum in the NIR wavelength range. Sagitto has used these unique NIR fingerprints and created accurate machine learning models to allow you to quickly analyse the fibre composition of fabrics.
To accurately calculate the composition of textile blends, testing laboratories take into account the relative densities of each fibre type. To illustrate this we deconstructed a 1.5gm sample, separating the warp and the weft threads. We were able to test these warp and weft threads separately, and by taking their relative densities into account we show that this textile is 60% linen (0.9gm of warp threads) and 40% silk (0.6gm of weft threads).