Following several years of intensive research and numerous tests, polyester specialist Trevira has finally launched its new multifunctional, antimicrobial fibre for the apparel sector. However, unlike traditional textiles with special hygienic properties, the antimicrobial effect of new 'Trevira bioactive' is not achieved by means of additives or after-treatment but is an integral element in the fibres - and is retained permanently, no matter what stresses are placed on the material.