Method of making a molded part and part made thereby
AssigneeReifenhaeuser Gi Co.KG Maschinenfabrik
InventorsAndreas Roesner, Markus Wuescht, Tim Carsten Pohl
Life of this patent
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Abstract
A molded part is made from at least one nonwoven web having at least one layer of a filament/fiber mixture by the steps of: a spinneret forming a continuous-filament/air stream; a fiberizer forming a short-fiber/air stream; merging the continuous-filament/air stream with the short-fiber/air stream in a contact zone; depositing the merged air streams on a zone of a conveyor as a nonwoven web such that the continuous filaments form a matrix holding the short fibers; and setting a portion of the nonwoven web in a press and heating the portion to 30 EC to 275 EC and at a pressure of at least 1 MPa to compress the portion into a molded part.
Claims17
A method of making a molded part from at least one nonwoven web having at least one layer of a filament/fiber mixture, the method comprising the steps of:
- a spinneret forming a continuous-filament/air stream;
- a fiberizer forming a fiber/air stream;
- merging the continuous-filament/air stream with the fiber/air stream in a contact zone to form a filament/fiber stream;
- depositing continuous filaments and short fibers of the filament/fiber stream on a zone of a conveyor to form thereon a nonwoven web with the continuous filaments forming a matrix holding the fibers, a proportion of fibers in the deposited nonwoven web and/or in the molded part being 65% to 97% by weight;
- and
- setting a portion of the nonwoven web in a press and heating the portion to 30° C. to 275° C. and at a pressure of at least 1 MPa to compress the portion into the molded part.
Dependencies are inferred from the claim text.