Markus Pichler

Abstract

Synthetic continuous filament yarns are widely used in the construction of footwear (e.g. sports shoes and trainers). However they generally show a significant downside in regard of the wearing experience, caused by their limited moisture management capability. Additionally, the extensive use of synthetics is increasingly questioned by authorities and consumers due to numerous sustainability aspects (e.g. lack of renewability and microplastics release).

Contrarily, cellulosic materials are well known for their moisture management capabilities, but have been limited due to their low tear-strength (especially in the wet state) and durability. Aforementioned shortcomings have been overcome with the introduction of Lyocell Filament, which, aside from its sustainability benefits, increases mechanical properties to a level that opens up additional application fields. As tests have shown, all established knitting technologies can utilize Lyocell filament as a mono-material, or in combination with other filament or staple fiber yarns.