Manufacture of spunbonded nonwovens from continuous filaments

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 11697897
SERIAL NO

17694867

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Abstract

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A spunbonded nonwovens is made by first spinning thermoplastic continuous filaments and emitting them from a spinneret in a direction and then passing the filaments in the direction through a cooling chamber. Meanwhile cooling air is fed from respective manifolds flanking the chamber into the chamber to cool the filaments and the cooling air is guided into the manifolds through respective manifolds and through respective planar homogenizing elements each having a plurality of openings forming a free open surface area constituting 1 to 40% of the total surface area of the respective planar homogenizing element. The cooling air passes from the planar homogenizing element into the cooling chamber through a flow straightener.

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Patent Owner(s)

  • REIFENHAEUSER GMBH & CO. KG MASCHINENFABRIK

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Frey, Detlef Niederkassel, DE 42 245
Geus, Hans-Georg Niederkassel, DE 33 75
Neuenhofer, Martin Roesrath, DE 15 9
Nitschke, Michael Koenigswinter, DE 15 16

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