PT922139E - PROCESS FOR THE ELIMINATION OF DEFECTS IN PAPER DURING CONTINUOUS PRODUCTION OF PAPER - Google Patents

PROCESS FOR THE ELIMINATION OF DEFECTS IN PAPER DURING CONTINUOUS PRODUCTION OF PAPER

Info

Publication number
PT922139E
PT922139E PT97937503T PT97937503T PT922139E PT 922139 E PT922139 E PT 922139E PT 97937503 T PT97937503 T PT 97937503T PT 97937503 T PT97937503 T PT 97937503T PT 922139 E PT922139 E PT 922139E
Authority
PT
Portugal
Prior art keywords
paper
defect
web
station
speed
Prior art date
Application number
PT97937503T
Other languages
Portuguese (pt)
Inventor
Hubertus Burkhart
Original Assignee
Stora Enso Publication Paper A
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Stora Enso Publication Paper A filed Critical Stora Enso Publication Paper A
Publication of PT922139E publication Critical patent/PT922139E/en

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21G—CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
    • D21G9/00—Other accessories for paper-making machines
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21G—CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
    • D21G9/00—Other accessories for paper-making machines
    • D21G9/0009—Paper-making control systems

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.
PT97937503T 1996-08-15 1997-07-18 PROCESS FOR THE ELIMINATION OF DEFECTS IN PAPER DURING CONTINUOUS PRODUCTION OF PAPER PT922139E (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19632988A DE19632988C1 (en) 1996-08-15 1996-08-15 Process for eliminating paper defects in continuous paper production

Publications (1)

Publication Number Publication Date
PT922139E true PT922139E (en) 2002-04-29

Family

ID=7802762

Family Applications (1)

Application Number Title Priority Date Filing Date
PT97937503T PT922139E (en) 1996-08-15 1997-07-18 PROCESS FOR THE ELIMINATION OF DEFECTS IN PAPER DURING CONTINUOUS PRODUCTION OF PAPER

Country Status (16)

Country Link
EP (1) EP0922139B1 (en)
JP (1) JP2001502648A (en)
KR (1) KR20000029927A (en)
CN (1) CN1104526C (en)
AT (1) ATE210762T1 (en)
BR (1) BR9714336A (en)
CA (1) CA2263211C (en)
CZ (1) CZ297849B6 (en)
DE (2) DE19632988C1 (en)
ES (1) ES2165084T3 (en)
ID (1) ID17869A (en)
NO (1) NO313558B1 (en)
PL (1) PL184169B1 (en)
PT (1) PT922139E (en)
RU (1) RU2166017C2 (en)
WO (1) WO1998006897A1 (en)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI990159A (en) * 1999-01-28 2000-07-29 Valmet Automation Inc Procedure for monitoring the quality of a fiber web
DE10011067A1 (en) * 2000-03-07 2001-09-13 Voith Paper Patent Gmbh During paper web production a system measures and monitors the shrinkage and other characteristics with data to be used by customers to set their processes easily and with reduced wastage
US20020176617A1 (en) * 2001-05-22 2002-11-28 Pti Advanced Filtration, Inc. System and method for continuous integrity testing of a material web
DE102005053037A1 (en) * 2005-11-04 2007-05-10 Maschinenfabrik Rieter Ag Fiber stream`s e.g. yarn, dirt detecting method for textile machine, involves producing images of fiber stream parts to determine whether discrepancy is concluded in detected radiation within images in presence of dirt within fiber parts
FI118924B (en) 2005-12-05 2008-05-15 Metso Paper Inc Apparatus and method for removing a broken pulp web from a cell dryer
FI119981B (en) 2006-09-06 2009-05-29 Metso Paper Inc Method and apparatus for patching fibrous material
DE102006047487A1 (en) * 2006-10-05 2008-04-10 Voith Patent Gmbh dryer assembly
CN101815665B (en) * 2007-09-27 2012-10-10 Abb有限公司 Accurate tracking of web features through converting processes
FI121859B (en) * 2008-11-25 2011-05-13 Metso Automation Oy A method for controlling the repair of a web with a rolling machine and corresponding system
US9053413B2 (en) 2013-07-22 2015-06-09 Xerox Corporation Automatically identifying locations of printing defects within printed rolls
CN104326125B (en) * 2014-08-28 2016-08-24 北京凌云光技术有限责任公司 Flaw label tracking and device
CN104326301B (en) * 2014-08-28 2017-02-08 北京凌云光技术有限责任公司 Defective tag automatic removing device and system using automatic removing device
CN104637156B (en) * 2015-03-06 2017-05-24 广州广电运通金融电子股份有限公司 Paper money roll-out control method and device as well as paper money storage equipment
CN105500919B (en) * 2015-12-30 2017-11-10 凌云光技术集团有限责任公司 A kind of label defect alarm method and device
IT201600127586A1 (en) * 2016-12-16 2018-06-16 Futura Spa Plant for the production of paper material logs.
CN109366568A (en) * 2018-11-30 2019-02-22 广州市普理司科技有限公司 Multi-functional automatic product examine machine and its control method
CN111879781B (en) * 2020-06-17 2022-02-11 西安交通大学 Test paper quality detection system based on machine vision

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62295862A (en) * 1986-06-13 1987-12-23 Toshiba Corp Sheet repair control device for winder
FR2670896B1 (en) * 1990-12-24 1994-08-12 Siderurgie Fse Inst Rech DEVICE FOR DETECTING FAULTS OF A STRIP WHILE BEING TRIPPED.
JP2848028B2 (en) * 1991-05-29 1999-01-20 王子製紙株式会社 Web repair method and repair device

Also Published As

Publication number Publication date
CZ48899A3 (en) 1999-07-14
ATE210762T1 (en) 2001-12-15
RU2166017C2 (en) 2001-04-27
JP2001502648A (en) 2001-02-27
DE59705791D1 (en) 2002-01-24
NO990605D0 (en) 1999-02-09
ES2165084T3 (en) 2002-03-01
BR9714336A (en) 2000-04-11
WO1998006897A1 (en) 1998-02-19
CN1104526C (en) 2003-04-02
EP0922139A1 (en) 1999-06-16
KR20000029927A (en) 2000-05-25
PL331586A1 (en) 1999-07-19
CN1228132A (en) 1999-09-08
EP0922139B1 (en) 2001-12-12
DE19632988C1 (en) 1998-01-22
NO313558B1 (en) 2002-10-21
ID17869A (en) 1998-02-05
CA2263211A1 (en) 1998-02-19
NO990605L (en) 1999-02-09
PL184169B1 (en) 2002-09-30
CA2263211C (en) 2006-04-18
CZ297849B6 (en) 2007-04-11

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