Kelheim Develops Umberto Specialty Viscose Fiber
Umberto's parameters can be tuned during the spinning process to create various shaped cross sections. For nonwovens applications such as wet wipes, fibers of a certain length have been shown to provide dispersibility. In a textile yarn, the different cross sections form air pockets that can provide thermal insulating properties for apparel applications, Kelheim reports.
Kelheim Fibres' Umberto cross section