Thueringisches Institut Fuer Textil-und Kunststoff-forschung E.v.

Thuringisches Institut Fur Textil Und Kunststoff-forschung E. V.

Ostthuringische Materialprufgesellschaft Fur Textil Und Kunststoffe Mbh

Yvonne Ewert

Frank-Günter Niemz

Marcus Krieg

Bernd Riedel

Christoph Kindler

Functional spunlaid fabrics incorporating fibers made from non-meltable polymers containing permanently one or more functional additives are provided. The fibers are entangled and interlocked to form a firm nonwoven composite, have different lengths, and aspect ratios above 1,000. The fibers have a mean diameter of 0.1 to 500 micrometres and diameter variations within a single fiber and among each other of at least 30%. The fibers contain more than 40 wt % of finely distributed functional additives in solid and/or liquid form. The spunlaid fabric is produced from a spinning solution containing the non-meltable polymer dissolved in a direct solvent and at least one functional additive. The spinning solution is extruded out of a spinneret, and the resulting strands are drawn in the longitudinal direction to form fibers, stabilized and laid down to form a nonwoven fabric with permanent functional properties. Exemplary spunlaid fabrics include clothing, technical textiles and filters.

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Rudolstadt, Germany

Yvonne Ewert