SPINDIGO techniques
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Mobile farm-based extraction machinery designed to handle a high through-put of woad has been developed. Woad and polygonum have also been extracted using non-specialised equipment. And a novel patented technology for extraction is being developed. Indigo produced in the Project has been used in test dyeings to DIN standards with natural fabrics and unconventional materials. The results compared well with the synthetic product and the present limited commercial sources of natural indigo. In line with the value of our indigo as a natural, sustainable product we have identified natural auxiliary agents for dyeing.