WO1992000419A1 - Procedure and means for controlling a doctor coating process - Google Patents

Procedure and means for controlling a doctor coating process Download PDF

Info

Publication number
WO1992000419A1
WO1992000419A1 PCT/FI1991/000201 FI9100201W WO9200419A1 WO 1992000419 A1 WO1992000419 A1 WO 1992000419A1 FI 9100201 W FI9100201 W FI 9100201W WO 9200419 A1 WO9200419 A1 WO 9200419A1
Authority
WO
WIPO (PCT)
Prior art keywords
coating
coating means
web
following
doctor
Prior art date
Application number
PCT/FI1991/000201
Other languages
English (en)
French (fr)
Inventor
Markku Niemi
Helena Jokinen
Original Assignee
Oy Keskuslaboratorio - Centrallaboratorium Ab
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 Oy Keskuslaboratorio - Centrallaboratorium Ab filed Critical Oy Keskuslaboratorio - Centrallaboratorium Ab
Publication of WO1992000419A1 publication Critical patent/WO1992000419A1/en
Priority to NO924731A priority Critical patent/NO924731D0/no

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
    • D21H23/02—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
    • D21H23/70—Multistep processes; Apparatus for adding one or several substances in portions or in various ways to the paper, not covered by another single group of this main group
    • D21H23/72—Plural serial stages only
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C9/00—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important
    • B05C9/06—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important for applying two different liquids or other fluent materials, or the same liquid or other fluent material twice, to the same side of the work
    • 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
    • D21H23/34—Knife or blade type coaters

Definitions

  • the object of the present invention is to develop further the above-described procedure and means disclosed in the Finnish patent application No. 885678 so that the coating can be controlled more accurately, and in wider limits, than before.
  • the preceding coating means 2 can be moved relative to the following coating means 5 and to the additional coating means 9, in the web travel direction. Furthermore, the addition ⁇ al coating means 9 can be moved relative to the preced ⁇ ing coating means 2 and to the following coating means 5, in the web travel direction.
  • the structural design of the coating means 2

Landscapes

  • Application Of Or Painting With Fluid Materials (AREA)
  • Paper (AREA)
  • Coating Apparatus (AREA)
PCT/FI1991/000201 1990-06-26 1991-06-26 Procedure and means for controlling a doctor coating process WO1992000419A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
NO924731A NO924731D0 (no) 1990-06-26 1992-12-08 Framgangsmaate og anordning for regulering av en skrapebeleggingsprosess

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI903204A FI86318C (sv) 1990-06-26 1990-06-26 Förfarande och anordning för att reglera bladbestrykning
FI903204 1990-06-26

Publications (1)

Publication Number Publication Date
WO1992000419A1 true WO1992000419A1 (en) 1992-01-09

Family

ID=8530696

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FI1991/000201 WO1992000419A1 (en) 1990-06-26 1991-06-26 Procedure and means for controlling a doctor coating process

Country Status (5)

Country Link
EP (1) EP0574384A1 (sv)
JP (1) JPH06501192A (sv)
CA (1) CA2086249A1 (sv)
FI (1) FI86318C (sv)
WO (1) WO1992000419A1 (sv)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29610395U1 (de) * 1996-06-13 1996-08-22 Voith Sulzer Papiermasch Gmbh Vorrichtung zum aufeinanderfolgenden Auftragen von zwei Schichten von flüssigen oder pastösen Medien auf eine Seite einer laufenden Materialbahn
US5650200A (en) * 1994-06-29 1997-07-22 Valmet Corporation Method and apparatus for controlling the thickness of a coating applied to a moving web
EP0794287A1 (en) * 1996-03-06 1997-09-10 Valmet Corporation Method and assembly for coating a moving web
EP0812957A1 (de) * 1996-06-13 1997-12-17 Voith Sulzer Papiermaschinen GmbH Verfahren und Vorrichtung zur Beschichtung einer laufenden Materialbahn

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0198622A1 (en) * 1985-04-01 1986-10-22 Ecc International Limited Paper coating apparatus and method
GB2189714A (en) * 1986-04-30 1987-11-04 Yhtyneet Paperitehtaat Oy Coated paper, cardboard or the like and method as well as apparatus for the production thereof
EP0272996A1 (en) * 1986-11-28 1988-06-29 Beloit Corporation A coating apparatus
DE3922535A1 (de) * 1988-07-27 1990-02-01 Voith Gmbh J M Auftragseinrichtung zur beschichtung laufender warenbahnen sowie verfahren zur beschichtung
WO1990006184A1 (en) * 1988-12-07 1990-06-14 Oy Keskuslaboratorio Centrallaboratorium Ab Procedure and means for coating a paper web in at least two steps

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0198622A1 (en) * 1985-04-01 1986-10-22 Ecc International Limited Paper coating apparatus and method
GB2189714A (en) * 1986-04-30 1987-11-04 Yhtyneet Paperitehtaat Oy Coated paper, cardboard or the like and method as well as apparatus for the production thereof
EP0272996A1 (en) * 1986-11-28 1988-06-29 Beloit Corporation A coating apparatus
DE3922535A1 (de) * 1988-07-27 1990-02-01 Voith Gmbh J M Auftragseinrichtung zur beschichtung laufender warenbahnen sowie verfahren zur beschichtung
WO1990006184A1 (en) * 1988-12-07 1990-06-14 Oy Keskuslaboratorio Centrallaboratorium Ab Procedure and means for coating a paper web in at least two steps

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5650200A (en) * 1994-06-29 1997-07-22 Valmet Corporation Method and apparatus for controlling the thickness of a coating applied to a moving web
EP0794287A1 (en) * 1996-03-06 1997-09-10 Valmet Corporation Method and assembly for coating a moving web
US6291017B1 (en) 1996-03-06 2001-09-18 Valmet Corporation Method for coating a moving web with at least two coat layers
US6346148B1 (en) * 1996-03-06 2002-02-12 Valmet Corporation Apparatus for coating a moving web with at least two coat layers
DE29610395U1 (de) * 1996-06-13 1996-08-22 Voith Sulzer Papiermasch Gmbh Vorrichtung zum aufeinanderfolgenden Auftragen von zwei Schichten von flüssigen oder pastösen Medien auf eine Seite einer laufenden Materialbahn
EP0812957A1 (de) * 1996-06-13 1997-12-17 Voith Sulzer Papiermaschinen GmbH Verfahren und Vorrichtung zur Beschichtung einer laufenden Materialbahn
EP0812958A1 (de) * 1996-06-13 1997-12-17 Voith Sulzer Papiermaschinen GmbH Vorrichtung zum aufeinanderfolgenden Auftragen von zwei Schichten von flüssigen oder pastösen Medien auf eine Seite einer laufenden Materialbahn
US5944898A (en) * 1996-06-13 1999-08-31 Voith Sulzer Papiermaschinen Gmbh Apparatus for successive application of two coats of liquid or pasty medium on one side of a traveling web of material
US6063192A (en) * 1996-06-13 2000-05-16 Voith Sulzer Papiermaschinen Gmbh Method and apparatus for wet-in-wet coating of a moving layer of material

Also Published As

Publication number Publication date
FI86318C (sv) 1992-08-10
FI903204A (fi) 1991-12-27
FI903204A0 (fi) 1990-06-26
CA2086249A1 (en) 1991-12-27
JPH06501192A (ja) 1994-02-10
FI86318B (fi) 1992-04-30
EP0574384A1 (en) 1993-12-22

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