Bayer Aktiengesellschaft

Bayer Faser Gmbh

Konrad Schmitz

Michael Kausch

Hans-Josef Behrens

Karl-Heinz Wolf

Wolfgang Klein

James F Heslep

Ben Bruner

Karlheinz Wolf

An elastane multifilament yarn havig two to six individual filaments which, when being unwound from a bobbin, is splittable into individual filaments, is produced by a process wherein multihole spinning jets are deployed in the spinning head of a conventional dry spinning apparatus, laminarizing the spinning gas flow to prevent entanglement of the individual filaments and passing the resulting yarn through a thread guide with one opening per individual filament.

Splittable elastane yarns

The invention relates to a spinning process, more particularly a dry spinning process, for the production of elastane fibers in which 0.8 to 2% by weight of polydimethylsiloxane with a viscosity of 50 to 300 cSt and 0.2 to 0.6% by weight of ethoxylated polydimethylsiloxane with a viscosity of 20 to 150 cSt are added to the elastane spinning solution before it is spun.

Yarn formed of eastane fibers produced by the dry spinning or wet spinning of spinning solutions which include polydimethylsiloxane and ethoxylated polydimethylsiloxane

Process for the production of elastane fibers by inclusion of a

An improved dry spinning process for manufacturing splittable elastane multifilament yarns wherein the coalescence of individual filaments is prevented, through the use of multihole spinning jets, laminarizing gas flow and thread guides having one opening per individual fiber.

Process for producing splittable elastane yarns

Growing community of inventors

Pulheim, Germany

Konrad Schmitz