Title:
【発明の名称】ツインワイヤーフォーミングセクションを有するスルーエアー乾燥抄紙機
Document Type and Number:
Japanese Patent JP2003517117
Kind Code:
A
Abstract:
A through-air drying paper making apparatus is provided comprising a twin-fabric forming section, a water-removing section arranged downstream of the forming section, and a web transfer device disposed between the forming section and the water-removing section. The forming section includes a forming roll, a pair of fabrics guided to travel about a portion of the circumference of the forming roll, and a headbox operable to deposit a slurry between the fabrics so as to form a paper web therebetween. Preferably, one of the fabrics in the forming section comprises a through-air drying (TAD) fabric arranged to carry the paper web through the water-removing section, while the other fabric comprises a forming wire. At the web transfer device, the paper web is separated from the forming wire and the paper web then carried on the TAD fabric through the water-removing section. The water-removing section includes at least one through-air dryer for at least partially drying the paper web. Most preferably, the forming section and the web transfer device are arranged such that the forming wire and the TAD fabric, with the paper web sandwiched therebetween, travel along a substantially straight and relatively short path between the forming roll and the web transfer device, thereby resulting in minimal directional change of the paper web after formation thereof about the forming roll and prior to separation of the paper web from the forming wire. An associated method is also provided.
Inventors:
Clere Lido Bernd Erik Ingval
Application Number:
JP2001545643A
Publication Date:
May 20, 2003
Filing Date:
December 01, 2000
Export Citation:
Assignee:
Metso Paper Karlstad Activolag
International Classes:
D21F9/02; D21F5/00; D21F5/18; D21F9/00; D21F11/00; D21F11/14; (IPC1-7): D21F9/02; D21F5/00
Attorney, Agent or Firm:
Minoru Nakamura (9 outside)