WO1991015306A1 - Process for two-faced coating of a travelling web - Google Patents

Process for two-faced coating of a travelling web Download PDF

Info

Publication number
WO1991015306A1
WO1991015306A1 PCT/SE1991/000206 SE9100206W WO9115306A1 WO 1991015306 A1 WO1991015306 A1 WO 1991015306A1 SE 9100206 W SE9100206 W SE 9100206W WO 9115306 A1 WO9115306 A1 WO 9115306A1
Authority
WO
WIPO (PCT)
Prior art keywords
web
transfer rollers
process according
speed
racterized
Prior art date
Application number
PCT/SE1991/000206
Other languages
English (en)
French (fr)
Inventor
Tore Eriksson
Original Assignee
Btg Källe Inventing 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 Btg Källe Inventing Ab filed Critical Btg Källe Inventing Ab
Priority to EP91907563A priority Critical patent/EP0523144B1/en
Priority to JP3507057A priority patent/JP3010068B2/ja
Priority to DE69109670T priority patent/DE69109670T2/de
Publication of WO1991015306A1 publication Critical patent/WO1991015306A1/en
Priority to FI924374A priority patent/FI106934B/fi

Links

Classifications

    • 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
    • B05C9/04—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 liquid or other fluent material to opposite sides of the work
    • 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
    • B05C1/00—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating
    • B05C1/04—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length
    • B05C1/08—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line
    • B05C1/0826—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line the work being a web or sheets
    • B05C1/0834—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line the work being a web or sheets the coating roller co-operating with other rollers, e.g. dosing, transfer rollers
    • 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
    • D21H23/52—Addition to the formed paper by contacting paper with a device carrying the material
    • D21H23/56—Rolls
    • D21H23/58—Details thereof, e.g. surface characteristics, peripheral speed

Definitions

  • the present invention relates to a process for two- faced coating of a travelling web, for example a paper web, while using two juxtaposed transfer roller between which the web travels with deposition of coating agent on both surfaces of the web.
  • metering coating liquid onto a roller examples include coaters using metering by means of blades or by means of rotary bars.
  • the present invention therefore has for an object to provide an improved process for two-faced coating of a travelling web while using two juxtaposed transfer rollers between which the web travels with deposition of coating agent on both sides of the web.
  • the invention is based on the principle that the transfer rollers are imparted mutu ⁇ ally different peripheral speeds, at least one of said pe ⁇ ripheral speeds deviating from the the speed by which the web is fed.
  • the process according to the in- vention is characterized by the fact that both transfer rollers in connection with the position of engagement with the web move in the same direction and in the same direc ⁇ tion as the web.
  • both peripheral speeds of the transfer rol ⁇ lers deviate from the speed of the travelling web, and it is particularly preferred that the peripheral speed of one of the transfer rollers exceeds the speed of the web, whereas the peripheral speed of the other transfer roller is lower than the speed of the web. In this connection it is preferred that the peripheral speeds of the transfer rollers deviate from the speed of the web at about the same degree.
  • the process according to the invention operates with a roller pressure in the nip be ⁇ tween the juxtaposed transfer rollers lower than that which is commonly used, and it is preferred that the transfer rollers are set at an engagement pressure in the nip of up to about 10 N/mm. It is also preferred to use rollers which are made of a soft material, for example rubber, and to use transfer rollers having a surface hardness of at most about 60 Shore A. For the purpose to obtain a certain feeding effect for the web it is suitable to bring same to an extended engagement against the transfer roller the peripheral speed of which exceeds that of the web.
  • the transfer rollers are set at an engagement pressure in the nip of from about 1 to about 10 N/mm and that transfer rollers are used having a surface hardness of at most about 60 Shore A.
  • the technique according to the present invention is particularly suitable for the coating of travelling paper webs.
  • the coating device illustrated in the drawing and generally indicated 1 comprises two transfer rollers 3 and 5, both rotating in the direction indicated by arrows a). Between these two transfer rollers 3,5 a paper web 7 is fed in the direction indicated by arrow b). Transfer rollers 3,5 are supplied with coating composition by means of applicators 13 and 15, respectively, and excess of coating composition 21,23 is returned to containers 17,19. Metering rollers 9,11 are rotated in a direction indicated by arrows c) and they have a speed which is significantly lower than the rotational speed of transfer rollers 3,5. As is clear from the drawing paper web 7 is fed in such a manner as to come into engagement with the mantel surface of the upper roller over a sector segment cor ⁇ responding to about 30° of the circumference. The engage ⁇ ment against the lower roller is theoretically along a line but in view of the softness of the rollers somewhat larger than the theoretic engagement.
  • the surprising improvement of the coating obtained by the process according to the present invention is above all related to the so called film-split effect which cau ⁇ ses orange peel pattern in the layer applied.
  • the low en- gagement pressure enables differences in the peripheral speeds of transfer rollers 3,5, on the one hand in rela ⁇ tion to each other, on the other hand in relation to the travelling speed of paper web 7.

Landscapes

  • Application Of Or Painting With Fluid Materials (AREA)
  • Paper (AREA)
  • Sliding-Contact Bearings (AREA)
  • Powder Metallurgy (AREA)
  • Treatment And Processing Of Natural Fur Or Leather (AREA)
  • Control Of El Displays (AREA)
  • Adhesives Or Adhesive Processes (AREA)
  • Coating Apparatus (AREA)
  • Absorbent Articles And Supports Therefor (AREA)
PCT/SE1991/000206 1990-04-03 1991-03-18 Process for two-faced coating of a travelling web WO1991015306A1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP91907563A EP0523144B1 (en) 1990-04-03 1991-03-18 Process for two-faced coating of a travelling web
JP3507057A JP3010068B2 (ja) 1990-04-03 1991-03-18 コーティング方法
DE69109670T DE69109670T2 (de) 1990-04-03 1991-03-18 Verfahren zur beidseitigen beschichtung einer beweglichen bahn.
FI924374A FI106934B (fi) 1990-04-03 1992-09-29 Menetelmä liikkuvan rainan päällystämiseksi kaksipuolisesti

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE9001219A SE465709B (sv) 1990-04-03 1990-04-03 Foerfarande foer tvaasidig bestrykning av en loepande bana medelst tvaa motstaellda oeverfoeringsvalsar
SE9001219-6 1990-04-03

Publications (1)

Publication Number Publication Date
WO1991015306A1 true WO1991015306A1 (en) 1991-10-17

Family

ID=20379084

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE1991/000206 WO1991015306A1 (en) 1990-04-03 1991-03-18 Process for two-faced coating of a travelling web

Country Status (7)

Country Link
EP (1) EP0523144B1 (ja)
JP (1) JP3010068B2 (ja)
AT (1) ATE122269T1 (ja)
DE (1) DE69109670T2 (ja)
FI (1) FI106934B (ja)
SE (1) SE465709B (ja)
WO (1) WO1991015306A1 (ja)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4243518A1 (de) * 1992-12-22 1994-01-13 Feldmuehle Ag Stora Vorrichtung zum Auftrag von Flüssigkeit auf beide Seiten einer Materialbahn und Verfahren zum Auftrag einer Flüssigkeit auf eine Materialbahn mit dieser Vorrichtung
EP0735188A1 (de) * 1995-03-25 1996-10-02 Voith Sulzer Papiermaschinen GmbH Verfahren und Vorrichtung zur Herstellung einer eine CF-Schicht aufweisende Papierbahn
FR2746264A1 (fr) * 1996-03-25 1997-09-26 Picardie Lainiere Procede de fabrication d'un entoilage thermocollant et entoilage thermocollant ainsi obtenu
EP0799934A1 (de) * 1996-04-03 1997-10-08 Voith Sulzer Papiermaschinen GmbH Verfahren und Vorrichtung zur Herstellung einer CB-Schicht aufweisenden Papierbahn
WO1999023308A1 (en) * 1997-10-31 1999-05-14 Beloit Technologies Inc. High speed coating apparatus and method
WO2002051556A1 (fr) * 2000-12-22 2002-07-04 Tarkett Sommer S.A. Procede d'enduction indirect en couche mince et dispositif a cet effet
WO2003056102A1 (en) * 2001-12-10 2003-07-10 Metso Paper, Inc. Method and apparatus for making a multilayer coating
EP1231321A3 (en) * 2001-02-09 2004-10-20 Industrie Cartarie Tronchetti S.p.A. Apparatus and method for applying a fluid to a paper web
WO2008034713A1 (de) * 2006-09-20 2008-03-27 Voith Patent Gmbh Verfahren zur herstellung einer beschichteten papier-, karton- oder anderen faserstoffbahn

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE529814C2 (sv) 2006-04-11 2007-11-27 Mattssonfoeretagen I Uddevalla Trådlindad gravyrvals och metod för dess framställning

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0037605A1 (en) * 1980-03-27 1981-10-14 Stork Brabant B.V. Method and apparatus for coating a permeable web
US4848268A (en) * 1984-05-11 1989-07-18 J. M. Voith Gmbh Apparatus and method for applying a liquid to a moving web
GB2213406A (en) * 1987-12-08 1989-08-16 Molins Plc Coating apparatus
EP0385640A2 (en) * 1989-02-23 1990-09-05 The Wiggins Teape Group Limited Process for applying microcapsule-containing compositions to paper

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0037605A1 (en) * 1980-03-27 1981-10-14 Stork Brabant B.V. Method and apparatus for coating a permeable web
US4848268A (en) * 1984-05-11 1989-07-18 J. M. Voith Gmbh Apparatus and method for applying a liquid to a moving web
GB2213406A (en) * 1987-12-08 1989-08-16 Molins Plc Coating apparatus
EP0385640A2 (en) * 1989-02-23 1990-09-05 The Wiggins Teape Group Limited Process for applying microcapsule-containing compositions to paper

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4243518A1 (de) * 1992-12-22 1994-01-13 Feldmuehle Ag Stora Vorrichtung zum Auftrag von Flüssigkeit auf beide Seiten einer Materialbahn und Verfahren zum Auftrag einer Flüssigkeit auf eine Materialbahn mit dieser Vorrichtung
WO1994015021A1 (de) * 1992-12-22 1994-07-07 Stora Feldmühle Ag Vorrichtung zum gleichzeitigen auftrag von flüssigkkeit auf beide seiten einer materialbahn und verfahren zum auftrag einer flüssigkeit auf eine materialbahn mit dieser vorrichtung
EP0735188A1 (de) * 1995-03-25 1996-10-02 Voith Sulzer Papiermaschinen GmbH Verfahren und Vorrichtung zur Herstellung einer eine CF-Schicht aufweisende Papierbahn
FR2746264A1 (fr) * 1996-03-25 1997-09-26 Picardie Lainiere Procede de fabrication d'un entoilage thermocollant et entoilage thermocollant ainsi obtenu
EP0797932A1 (fr) * 1996-03-25 1997-10-01 Lainiere De Picardie Procédé de fabrication d'un entoilage thermocollant et entoilage thermocollant ainsi obtenu
EP0799934A1 (de) * 1996-04-03 1997-10-08 Voith Sulzer Papiermaschinen GmbH Verfahren und Vorrichtung zur Herstellung einer CB-Schicht aufweisenden Papierbahn
WO1999023308A1 (en) * 1997-10-31 1999-05-14 Beloit Technologies Inc. High speed coating apparatus and method
WO2002051556A1 (fr) * 2000-12-22 2002-07-04 Tarkett Sommer S.A. Procede d'enduction indirect en couche mince et dispositif a cet effet
CZ300433B6 (cs) * 2000-12-22 2009-05-20 Tarkett Sas Zpusob neprímého nanášení tenké vrstvy a zarízení k provádení tohoto zpusobu
EP1231321A3 (en) * 2001-02-09 2004-10-20 Industrie Cartarie Tronchetti S.p.A. Apparatus and method for applying a fluid to a paper web
WO2003056102A1 (en) * 2001-12-10 2003-07-10 Metso Paper, Inc. Method and apparatus for making a multilayer coating
WO2008034713A1 (de) * 2006-09-20 2008-03-27 Voith Patent Gmbh Verfahren zur herstellung einer beschichteten papier-, karton- oder anderen faserstoffbahn

Also Published As

Publication number Publication date
DE69109670D1 (de) 1995-06-14
ATE122269T1 (de) 1995-05-15
SE9001219D0 (sv) 1990-04-03
EP0523144B1 (en) 1995-05-10
DE69109670T2 (de) 1995-09-07
SE465709B (sv) 1991-10-21
EP0523144A1 (en) 1993-01-20
JPH05505971A (ja) 1993-09-02
JP3010068B2 (ja) 2000-02-14
SE9001219A (ja) 1991-10-04
FI106934B (fi) 2001-05-15
FI924374A (fi) 1992-09-29
FI924374A0 (fi) 1992-09-29

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