Ever wondered what happens to your hair once you go for your six-monthly chop-chop at the salon? If Human Material Loop, a Dutch start-up, has its way, all of this could well be mopped up to give you an all-new ethical, traceable and high-performing textile fibre, prototypes of which have been developed and the immediate plan is to go commercial. Founder-CEO Zsofia Kollar in conversation with texfash.