Title:
【発明の名称】連続的な製紙工程において紙の欠陥を除去する方法
Document Type and Number:
Japanese Patent JP2001502648
Kind Code:
A
Abstract:
A process for elimination of paper defects during continuous paper production which reduces time lost due to defect correction has the following steps: a) recognition and localization of the paper defect by means of sensors (5) directed at the running paper web (4); b) detection or calculation of the speed of the paper web (4) between the sensor (5) and a station (6) for defect correction positioned downstream from the sensor (5); c) on the basis of the speed of the paper web, calculation of the arrival time of the web segment with the paper defect at the station (6) for defect correction; d) before arrival of the web segment with the paper defect at the station (6) for defect correction, reduction of the web segment speed to a lower value than normal speed or to zero, e) automatic removal of the paper defect in station (6) for defect correction and f) restoring the web section to normal speed.
Inventors:
Hubertus Burghart
Application Number:
JP50932398A
Publication Date:
February 27, 2001
Filing Date:
July 18, 1997
Export Citation:
Assignee:
Stra publication paper acti genzel shaft
International Classes:
B65H37/02; B65H43/04; D21G9/00; B65H26/02; (IPC1-7): B65H26/02; D21G9/00
Attorney, Agent or Firm:
Kawawa Takaho