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1. (WO2014202052) ENTANGLED CARBON-FIBER NONWOVEN PRODUCTION METHOD AND ASSEMBLY, THREE-DIMENSIONAL-COMPONENT NONWOVEN PRODUCTION METHOD, AND NONWOVEN FABRIC

Pub. No.:    WO/2014/202052    International Application No.:    PCT/DE2014/100198
Publication Date: Thu Dec 25 00:59:59 CET 2014 International Filing Date: Sat Jun 14 01:59:59 CEST 2014
IPC: D01G 25/00
D04H 1/732
D04H 1/542
D04H 1/4242
Applicants: KARL MEYER AG
GRIMM-SCHIRP GS TECHNOLOGIE GMBH
Inventors: RADEMACKER, Tim
GRIMM, Heinrich
Title: ENTANGLED CARBON-FIBER NONWOVEN PRODUCTION METHOD AND ASSEMBLY, THREE-DIMENSIONAL-COMPONENT NONWOVEN PRODUCTION METHOD, AND NONWOVEN FABRIC
Abstract:
The invention relates to an entangled carbon-fiber nonwoven production method for producing an entangled carbon-fiber nonwoven from carbon fibers up to a fiber length of 100 mm, comprising the following steps: supplying carbon fibers; loosening/combing apart and aerodynamically isolating the carbon fibers; aerodynamically calming the isolated carbon fibers; introducing the calmed and isolated carbon fibers into a vertically arranged air shaft (1), wherein the carbon fibers are introduced at the upper end (12) of the air shaft (1); mixing the carbon fibers within the air shaft (1) in a contactless manner by air whirling by means of a plurality of individual air flows; aerodynamically depositing the carbon fibers onto a moving mold or deposit surface (2) arranged below the air shaft (1), wherein the aerodynamic deposition is performed by means of suctioning below the mold or the deposit surface (2), wherein the air flows are varied and/or adjusted in the direction and/or intensity thereof and the air flows are produced and varied by means of one or more rotating and horizontally arranged air nozzles (14). The invention further relates to an entangled carbon-fiber nonwoven production assembly, to a three-dimensional-component nonwoven production method, and to a nonwoven fabric.