Title:
高速形成ヘッド
Document Type and Number:
Japanese Patent JP2004538392
Kind Code:
A
Abstract:
A former head for dry forming fibrous tissue in which a fiber material is mixed with air introduced to at least one rotating drum in a former head by injection. The drum is provided internally with means for fluidizing the injected fibers simultaneously, enabling higher production capacity and an increased distribution quality of the fibers. This former head has high capacity and an increased width, preferably over four meters, which avoids natural oscillations in the needle rollers as they are substituted by slotted air nozzles. The nozzles extend along a whole length of the drum and have adjustable nozzle lips to regulate the amount of air and direction of the air-flow blown through the perforations of the drum. Surprisingly, the capacity of the former head is markedly higher than conventional devices and distribution quality also is markedly better than by high-speed operation of traditional machines.
Inventors:
Sordal, Jens, Erik
Application Number:
JP2003520901A
Publication Date:
December 24, 2004
Filing Date:
August 20, 2002
Export Citation:
Assignee:
Dun Web Holding Actiesl Scab
International Classes:
D04H1/70; D04H1/732; D04H1/736; (IPC1-7): D04H1/70
Attorney, Agent or Firm:
Hideto Asamura
Hajime Asamura
Toru Mori
Yutaka Yoshida
Hajime Asamura
Toru Mori
Yutaka Yoshida