Hergeth Hollingsworth Gmbh

Spinnbau Gmbh

Horst Graute

Carding machine and process for producing an aerodynamic card web

In a card especially suited for the manufacture of nonwovens for producing aerodynamically formed, air laid, fibrous webs, comprising a feed roller (F), a driven main cylinder (T) rotating at a high speed, an air shaft or passage (2) which, adjacent the fiber doffing zone (3) is substantially tangential to the main cylinder (T), and which extends to an air-permeable nonwovens web conveying belt (5), and a suction fan (11), arranged beneath the nonwovens conveying belt (5), the centrifugal force at the main cylinder (T) throwing the fibers in the fiber doffing zone (3) into the air current generated in the air shaft (2) and conveying the fibers to the nonwovens conveying belt (5) where they are depsosited as a continuous fibrous web, it is provided that the upper portion of the air shaft (2) is designed as an air suction gap having a substantially nozzle-shaped cross section.

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Coesfeld, Germany

Horst Graute