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Fiber World

Kelheim Develops Umberto Specialty Viscose Fiber

Germany-based Kelheim Fibres GmbH has developed Umberto, a viscose fiber that features a variety of letter-shaped cross sections and is showing promise for both nonwovens and textile applications.

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

November/December 2012