EP0930396A3 - Process and apparatus for applying a liquid or a pasty product onto a moving web - Google Patents

Process and apparatus for applying a liquid or a pasty product onto a moving web Download PDF

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Publication number
EP0930396A3
EP0930396A3 EP98123138A EP98123138A EP0930396A3 EP 0930396 A3 EP0930396 A3 EP 0930396A3 EP 98123138 A EP98123138 A EP 98123138A EP 98123138 A EP98123138 A EP 98123138A EP 0930396 A3 EP0930396 A3 EP 0930396A3
Authority
EP
European Patent Office
Prior art keywords
material web
operating parameter
deviations
liquid
application unit
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
EP98123138A
Other languages
German (de)
French (fr)
Other versions
EP0930396A2 (en
Inventor
Martin Dr. Kustermann
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Voith Patent GmbH
Original Assignee
Voith Sulzer Papiertechnik Patent GmbH
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 Voith Sulzer Papiertechnik Patent GmbH filed Critical Voith Sulzer Papiertechnik Patent GmbH
Publication of EP0930396A2 publication Critical patent/EP0930396A2/en
Publication of EP0930396A3 publication Critical patent/EP0930396A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H23/00—Processes or apparatus for adding material to the pulp or to the paper
    • D21H23/78—Controlling or regulating not limited to any particular process or apparatus
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H23/00—Processes or apparatus for adding material to the pulp or to the paper
    • D21H23/02—Processes or apparatus for adding material to the pulp or to the paper characterised by the manner in which substances are added
    • D21H23/22—Addition to the formed paper
    • D21H23/32—Addition to the formed paper by contacting paper with an excess of material, e.g. from a reservoir or in a manner necessitating removal of applied excess material from the paper

Abstract

Es wird ein Betriebsverfahren für eine Vorrichtung zum direkten oder indirekten Auftragen eines flüssigen bis pastösen Auftragsmediums auf eine laufende Materialbahn (14), insbesondere aus Papier oder Karton, vorgeschlagen, bei dem mittels eines Auftragswerks (10) die Materialbahn (14) mit einer Schicht des Auftragsmediums bestrichen wird und das Strichergebnis sodann auf Abweichungen von einem gewünschten Strichergebnis hin untersucht wird, wobei im Fall der Feststellung solcher Abweichungen zu deren Korrektur mindestens ein Betriebsparameter des Auftragswerks (10) bei laufender Materialbahn (14) von einem Parameterausgangswert aus, den der Betriebsparameter vor der Feststellung der Abweichungen besitzt, kurzzeitig verstellt wird. Anschließend wird der Betriebsparameter zumindest annähernd wieder auf den Parameterausgangswert zurückgestellt, wobei die Verstellung und anschließende Zurückstellung des Betriebsparameters erforderlichenfalls wiederholt wird. Durch diese Vorgehensweise können speziell bei einem Freistrahl-Auftragswerk (10) streifenförmige Fehler im Strichbild der auf die Materialbahn (14) aufgetragenen Schicht beseitigt werden, die durch Schmutzteilchen oder sonstige Verunreinigungen hervorgerufen werden, welche sich in einer Strahlaustrittsöffnung (12) des Freistrahl-Auftragswerks (10) festgesetzt haben.

Figure 00000001
An operating method for a device for the direct or indirect application of a liquid to pasty application medium to a running material web (14), in particular made of paper or cardboard, is proposed, in which the material web (14) with a layer of the Application medium is coated and the coating result is then examined for deviations from a desired coating result, wherein in the event of the detection of such deviations for their correction, at least one operating parameter of the application unit (10) while the material web (14) is running from a parameter output value that the operating parameter predicts the detection of the deviations, is temporarily adjusted. The operating parameter is then at least approximately reset to the parameter output value, the adjustment and subsequent resetting of the operating parameter being repeated if necessary. In this way, in the case of a free jet application unit (10) in particular, streak-shaped defects in the line pattern of the layer applied to the material web (14), which are caused by dirt particles or other impurities which are located in a jet outlet opening (12) of the free jet application unit, can be eliminated (10) have fixed.
Figure 00000001
EP98123138A 1998-01-14 1998-12-04 Process and apparatus for applying a liquid or a pasty product onto a moving web Withdrawn EP0930396A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19801140A DE19801140A1 (en) 1998-01-14 1998-01-14 Device for the direct or indirect application of a liquid to pasty application medium on a running material web and operating method for such a device
DE19801140 1998-01-14

Publications (2)

Publication Number Publication Date
EP0930396A2 EP0930396A2 (en) 1999-07-21
EP0930396A3 true EP0930396A3 (en) 2000-05-03

Family

ID=7854584

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98123138A Withdrawn EP0930396A3 (en) 1998-01-14 1998-12-04 Process and apparatus for applying a liquid or a pasty product onto a moving web

Country Status (4)

Country Link
US (1) US6171642B1 (en)
EP (1) EP0930396A3 (en)
JP (1) JPH11253864A (en)
DE (1) DE19801140A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117058130B (en) * 2023-10-10 2024-01-09 威海威信光纤科技有限公司 Visual inspection method for coating quality of optical fiber drawing surface

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19911394A1 (en) 1999-03-15 2000-09-21 Voith Sulzer Papiertech Patent Method for operating a machine for the production and / or finishing of material webs
DE19911395A1 (en) 1999-03-15 2000-09-21 Voith Sulzer Papiertech Patent Device for determining properties of a running material web and / or a machine for its production and / or refinement
US6290816B1 (en) * 1999-07-21 2001-09-18 Voith Sulzer Paper Technology North America, Inc. Paper machine with closed loop control system
DE19946479A1 (en) * 1999-09-28 2001-03-29 Voith Paper Patent Gmbh Method and device for spraying a moving fibrous web
DE10032205A1 (en) * 2000-07-01 2002-01-10 Juergen Hosbach Recognizing mass changes in a product involves triggering alarm signal when measured signal path curve deviates from set curve with deviation exceeding preset stored tolerance zone
EP1470293A1 (en) * 2002-01-29 2004-10-27 Voith Paper Patent GmbH Machine for the production and/or conversion of a sheet of material and methods relating to such a machine, preventing impurities or facilitating removal thereof
DE10238728A1 (en) * 2002-08-23 2004-03-04 Voith Paper Patent Gmbh commissioned
DE10331145A1 (en) 2003-07-09 2005-01-27 Pama Papiermaschinen Gmbh Device for the direct or indirect application of liquid to pasty suspensions on paper or board webs
DE102004003226A1 (en) * 2004-01-22 2005-08-11 Voith Paper Patent Gmbh Machine and method for applying a liquid or pasty application medium on both sides by means of at least one commissioned work on a moving material web, in particular of paper or cardboard, and thereby usable method for determining area-related individual orders
DE102004029290A1 (en) * 2004-06-17 2005-12-29 Voith Paper Patent Gmbh Side support element and commissioned work for a paper machine
DE102005027791A1 (en) 2005-06-15 2006-12-21 Pama Papiermaschinen Gmbh Device for applying liquid to pasty suspensions on paper or board webs
CN115569820B (en) * 2022-10-24 2023-05-16 中自环保科技股份有限公司 Control method for improving coating accuracy of coated catalyst

Citations (13)

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Publication number Priority date Publication date Assignee Title
US4732776A (en) * 1987-02-24 1988-03-22 Measurex Corporation Apparatus and method for controlling the thickness of coatings on paper or other materials
DE4133439A1 (en) * 1990-10-11 1992-04-16 Centre Tech Ind Papier Continuous measurement of water retention in paper coating - is through brilliance values of measured reflected light at coating station
US5162131A (en) * 1990-06-12 1992-11-10 Valmet Paper Machinery Inc. Method and equipment for measurement and regulation of quantity of coating
DE4206776A1 (en) * 1992-03-04 1993-09-09 Schoeller Felix Jun Papier Prognosis of fault after emulsion coating of photographic carrier - scanning of several random selected sample paper strips using e.g. laser beam digitising and classifying according to size and weighting
DE4303577A1 (en) * 1992-04-10 1993-10-14 Valmet Paper Machinery Inc Process for coating a material web
EP0570733A1 (en) * 1992-05-19 1993-11-24 J.M. Voith GmbH Coating apparatus for applying a coating colour onto a paper web
DE4235824A1 (en) * 1992-07-27 1994-02-03 Jagenberg Ag Method for measuring the line thickness when painting paper, device for carrying out the method and use of the device
DE4229267A1 (en) * 1992-09-02 1994-03-03 Roland Man Druckmasch Method for controlling the printing process on an autotypically operating printing machine, in particular sheet-fed offset printing machine
US5455422A (en) * 1991-11-04 1995-10-03 Measurex Corporation Multiple coat measurement and control apparatus and method
DE19520190A1 (en) * 1994-06-03 1996-02-15 Nireco Corp Device for monitoring an adhesive application state
DE19501346A1 (en) * 1995-01-18 1996-07-25 Hans Georg Platsch Device for measuring the surface of a printed product
DE19528519A1 (en) * 1995-08-03 1997-02-06 Tzn Forschung & Entwicklung Device for the detection of strip-like surface defects
EP0829575A1 (en) * 1996-09-12 1998-03-18 Voith Sulzer Papiermaschinen GmbH Process and device for direct or indirect application of liquid or pasty media on a running material web

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Publication number Priority date Publication date Assignee Title
DE2913421C3 (en) * 1979-04-04 1982-04-29 J.M. Voith Gmbh, 7920 Heidenheim Method and device for stripping off excess coating material from a moving web
US4804556A (en) * 1984-08-30 1989-02-14 E. I. Du Pont De Nemours And Company Edge thickness control system
DE3638932A1 (en) * 1986-11-14 1988-05-26 Kaemmerer Gmbh METHOD FOR MEASURING COATING AMOUNTS, ESPECIALLY SILICONE COATINGS ON PAPER OR PLASTIC FILM
DE3736293A1 (en) * 1987-10-27 1989-05-11 Feldmuehle Ag Method and device for testing a still wet coating on running webs
DE3736265A1 (en) * 1987-10-27 1989-05-11 Feldmuehle Ag Method and device for testing of a still wet coating on running webs
DE3741680A1 (en) * 1987-12-09 1989-06-22 Pagendarm Gmbh Method and device for glazing the surface of a paper web
DE3908386A1 (en) * 1989-03-15 1990-09-27 Jagenberg Ag METHOD AND DEVICE FOR COATING MATERIAL SHEETS, ESPECIALLY PAPER OR CARDBOARD SHEETS
CH681112A5 (en) * 1990-01-06 1993-01-15 Wilfried Schoeps
DE4015017C2 (en) * 1990-05-10 1998-04-16 Polymer Latex Gmbh & Co Kg Process for applying a foamed, flowable coating composition
FI91025C (en) * 1991-02-08 1995-08-22 Valmet Paper Machinery Inc Method for adjusting the cross-sectional profile of the amount of paper or other web material and a coating station for carrying out the method
DE4106313A1 (en) * 1991-02-28 1992-09-03 Heidelberger Druckmasch Ag METHOD AND DEVICE FOR DETERMINING THE QUANTITY OR RELATING TO THE LAYER THICKNESS OF A FLUID
GB2297616B (en) 1994-06-03 1997-03-19 Nireco Corp Apparatus for monitoring glue application state
EP0701022B1 (en) * 1994-09-09 2001-04-04 Voith Paper Patent GmbH Coating machine for applying directly or indirectly a fluid or pasty material onto a moving web
FR2736286B1 (en) * 1995-07-07 1997-08-22 Kodak Pathe DEVICE AND METHOD FOR OPTIMIZING A GIVEN PARAMETER OF A PROCESS FOR COATING A LIQUID COMPOSITION ON A SUPPORT

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4732776A (en) * 1987-02-24 1988-03-22 Measurex Corporation Apparatus and method for controlling the thickness of coatings on paper or other materials
US5162131A (en) * 1990-06-12 1992-11-10 Valmet Paper Machinery Inc. Method and equipment for measurement and regulation of quantity of coating
DE4133439A1 (en) * 1990-10-11 1992-04-16 Centre Tech Ind Papier Continuous measurement of water retention in paper coating - is through brilliance values of measured reflected light at coating station
US5455422A (en) * 1991-11-04 1995-10-03 Measurex Corporation Multiple coat measurement and control apparatus and method
DE4206776A1 (en) * 1992-03-04 1993-09-09 Schoeller Felix Jun Papier Prognosis of fault after emulsion coating of photographic carrier - scanning of several random selected sample paper strips using e.g. laser beam digitising and classifying according to size and weighting
DE4303577A1 (en) * 1992-04-10 1993-10-14 Valmet Paper Machinery Inc Process for coating a material web
EP0570733A1 (en) * 1992-05-19 1993-11-24 J.M. Voith GmbH Coating apparatus for applying a coating colour onto a paper web
DE4235824A1 (en) * 1992-07-27 1994-02-03 Jagenberg Ag Method for measuring the line thickness when painting paper, device for carrying out the method and use of the device
DE4229267A1 (en) * 1992-09-02 1994-03-03 Roland Man Druckmasch Method for controlling the printing process on an autotypically operating printing machine, in particular sheet-fed offset printing machine
DE19520190A1 (en) * 1994-06-03 1996-02-15 Nireco Corp Device for monitoring an adhesive application state
DE19501346A1 (en) * 1995-01-18 1996-07-25 Hans Georg Platsch Device for measuring the surface of a printed product
DE19528519A1 (en) * 1995-08-03 1997-02-06 Tzn Forschung & Entwicklung Device for the detection of strip-like surface defects
EP0829575A1 (en) * 1996-09-12 1998-03-18 Voith Sulzer Papiermaschinen GmbH Process and device for direct or indirect application of liquid or pasty media on a running material web

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117058130B (en) * 2023-10-10 2024-01-09 威海威信光纤科技有限公司 Visual inspection method for coating quality of optical fiber drawing surface

Also Published As

Publication number Publication date
US6171642B1 (en) 2001-01-09
EP0930396A2 (en) 1999-07-21
JPH11253864A (en) 1999-09-21
DE19801140A1 (en) 1999-07-15

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