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Title:
【発明の名称】表面処理紙の生産方法、および抄紙機の乾部
Document Type and Number:
Japanese Patent JP2909018
Kind Code:
B2
Abstract:
A method for producing surface-treated paper, in particular of fine paper, and a dry end of a paper machine that makes use of the method. A paper web that has been dewatered by pressing is dried in the forward dryer section (D1), in which drying energy is applied to the paper web over the entire length of the forward dryer section asymmetrically in the z-direction from the side of the bottom face of the web. This step is carried out by a number of successive groups (R1-R8) with single-wire draw that are open downward. In this manner, shrinkage of the web both in the machine direction and in the cross direction is reduced or at least partially prevented, which shrinkage tends to take place when the dry solids content becomes higher. Paper broke is removed from underneath the drying groups that are open downward substantially by the force of gravity onto the broke conveyor (19) placed underneath. The paper web which has a tendency of curling because of the asymmetric forward-drying is passed to the finishing section (D2) where it is finished while it is moistened and worked plastically by passing the web through at least one calendering nip (20,40) so that the tendencies of curling that arose in the web in the forward drying stage are substantially reduced.

Inventors:
SETSUHO ERYOKI
HEIKI IRUBESUPAA
ANTSUTEI KUHASARO
REIMA KERUTSUTSURA
Application Number:
JP3423396A
Publication Date:
June 23, 1999
Filing Date:
January 30, 1996
Export Citation:
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Assignee:
BARUMETSUTO OY
International Classes:
F26B13/08; D21F5/04; D21G1/00; D21G7/00; D21G9/00; D21H23/70; F26B13/10; F26B13/18; F26B13/30; (IPC1-7): D21F5/04; D21G7/00; F26B13/08; F26B13/10; F26B13/18; F26B13/30
Domestic Patent References:
JP5222691A
JP598590A
JP3161588A
JP61500073A
JP7501590A
Attorney, Agent or Firm:
香取 孝雄