CA2444925A1 - Process for making coated paper or paperboard - Google Patents

Process for making coated paper or paperboard Download PDF

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Publication number
CA2444925A1
CA2444925A1 CA002444925A CA2444925A CA2444925A1 CA 2444925 A1 CA2444925 A1 CA 2444925A1 CA 002444925 A CA002444925 A CA 002444925A CA 2444925 A CA2444925 A CA 2444925A CA 2444925 A1 CA2444925 A1 CA 2444925A1
Authority
CA
Canada
Prior art keywords
curtain
free flowing
layer
paperboard
flowing curtain
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.)
Granted
Application number
CA002444925A
Other languages
French (fr)
Other versions
CA2444925C (en
Inventor
Robert Urscheler
J. Pekka Salminen
Jamel F. Attal
John A. Roper, Iii
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.)
Dow Global Technologies LLC
Original Assignee
Dow Global Technologies LLC
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 Dow Global Technologies LLC filed Critical Dow Global Technologies LLC
Publication of CA2444925A1 publication Critical patent/CA2444925A1/en
Application granted granted Critical
Publication of CA2444925C publication Critical patent/CA2444925C/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • D21H19/00—Coated paper; Coating material
    • D21H19/80—Paper comprising more than one coating
    • D21H19/82—Paper comprising more than one coating superposed
    • 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
    • D21H23/46—Pouring or allowing the fluid to flow in a continuous stream on to the surface, the entire stream being carried away by the paper
    • D21H23/48—Curtain coaters
    • 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
    • B05C5/00—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
    • B05C5/007—Slide-hopper coaters, i.e. apparatus in which the liquid or other fluent material flows freely on an inclined surface before contacting the work
    • B05C5/008—Slide-hopper curtain coaters
    • 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

Landscapes

  • Paper (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Laminated Bodies (AREA)

Abstract

The present invention refers to a method of producing a coated paper or paperboard, but excluding photographic papers, comprising the steps of:
(a) forming a free flowing curtain comprising at least one layer, whereby the composition forming at least one layer of the free flowing curtain has a high shear viscosity of at least 50 mPa.cndot.s, and (b) contacting the curtain with a continuous web substrate of basepaper and paperboard.

Claims (31)

1. A method of producing a coated paper or paperboard, but excluding photographic papers, comprising the steps of:
(a) forming a free flowing curtain comprising at least one layer, whereby a composition forming at least one layer of the free flowing curtain has, at a temperature of 25°C and at a shear rate of 500,000 s-1, a high shear viscosity of at least 50 mPa.cndot.s, and (b) contacting the curtain with a continuous web substrate of basepaper or paperboard.
2. A method according to claim 1, characterized in that at least one layer of the free flowing curtain of step (a) has a high shear viscosity of at least 75 mPa.cndot.s, preferably of at least 100 mPa.cndot.s, most preferably of at least 125 mPa.cndot.s.
3. A method of producing a coated paper or paperboard, but excluding photographic papers, comprising the steps of:
(a) forming a free flowing curtain comprising at least one layer, whereby a composition forming at least one layer of the free flowing curtain comprises at least one pigment, the morphology and structure of which is destroyed at a shear rate of less than 500,000 s-1, and (b) contacting the curtain with a continuous web substrate of basepaper or paperboard.
4. A method of producing a coated paper or paperboard, but excluding photographic papers, comprising the steps of:
(a) forming a free flowing curtain comprising at least one layer, whereby a composition forming at least one layer of the free flowing curtain has a Shear-Thickening Index, defined as the ratio of the viscosity at 30,000 s-1 to the viscosity at 3,000 s-1 at 25°C, of at least 1.2, and (b) contacting the curtain with a continuous web substrate of basepaper and paperboard.
5. A method according to any of the preceding claims, characterized in that the free flowing curtain of step (a) is a multilayer free flowing curtain.
6. A method according to claim 5, characterized in that the free flowing curtain of step (a) comprises a top layer ensuring printability.
7. A method according to claim 5 or 6, characterized in that the free flowing curtain of step (a) comprises at least 3 layers.
8. A method according to any of the preceding claims, characterized in that at least one layer of the free flowing curtain of step (a) comprises at least one pigment.
9. A method according to claim 8, characterized in that the pigment is selected from the group consisting of clay, kaolin, calcined clay, co-structured pigments, talc, calcium carbonate, titanium dioxide, satin white, synthetic polymer pigment, zinc oxide, barium sulfate, gypsum, silica, alumina trihydrate, mica, synthetic magadiite, and diatomaceous earth.
10. A method according to any of the preceding claims, characterized in that at least one layer of the free flowing curtain of step (a) comprises at least one pigment having an aspect ratio of at least 1.5:1.
11. A method according to any of the preceding claims, characterized in that at least one layer of the free flowing curtain of step (a) comprises a binder.
12. A method according to claim 11, characterized in that the hinder is selected from the group consisting of styrene-butadiene latex, styrene-acrylate latex, styrene-butadiene-acrylonitrile latex, styrene-acrylate-acrylonitrile latex, styrene-butadiene-acrylate-acrylonitrile latex, styrene-maleic anhydride latex, styrene-acrylate-maleic anhydride latex, polysaccharides, proteins, polyvinyl pyrrolidone, polyvinyl alcohol, polyvinyl acetate, cellulose derivatives and mixtures thereof.
13. A method according to any of the preceding claims, characterized in that at least one layer of the free flowing curtain of step (a) has a solids content of at least 30 weight percent, preferably of at least 40 weight percent, most preferably of at least 50 weight percent.
14. A method according to any of the preceding claims, characterized in that the free flowing curtain of step (a) has a solids content of at least 40 weight percent, preferably of at least 45 weight percent, most preferably of at least 50 weight percent.
15. A method according to any of the preceding claims, characterized in that at least one layer of the free flowing curtain of step (a) comprises at least one optical brightening agent.
16. A method according to any of the preceding claims, characterized in that at least one layer of the free flowing curtain of step (a) comprises at least one surfactant.
17. A method according to any of the preceding claims, characterized in that the free flowing curtain of step (a) comprises at least 4 layers, preferably at least 5 layers, and more preferably at least 6 layers.
18. A method according to any of the preceding claims, characterized in that at least one of the layers of the free flowing curtain of step (a) has a coatweight when dried of less than 10 g/m2, preferably of less than 8 g/m2, most preferably of less than 6 g/m2.
19. A method according to any of the preceding claims, characterized in that the continuous web substrate of step (b) is neither precoated nor precalendared.
20. A method according to any of the preceding claims, characterized in that the continuous web substrate of step (b) has a web velocity of at least 300 m/min, preferably of at least 400 m/min, most preferably of at least 500 m/min.
21. A method according to any of the preceding claims, characterized in that the continuous web substrate of step (6) has a grammage of from 20 to 350 g/m2.
22. A coated paper or paperboard obtainable by the method of any of the preceding claims.
23. A method of producing a coated paper or paperboard, but excluding photographic papers, comprising the steps of:
(a) forming a free flowing curtain comprising at least one layer, whereby a composition forming at least one layer of the free flowing curtain has a Shear-Blocking Behavior, and (b) contacting the curtain with a continuous web substrate of basepaper and paperboard.
24. A method of producing a coated paper or paperboard, but excluding photographic papers, comprising the steps of:
(a) forming a free flowing curtain comprising at least one layer, whereby a composition forming at least one layer of the free flowing curtain exhibits a difference between the Immobilization Solids Content and the Coating Application Solids of less than 17, and (b) contacting the curtain with a continuous web substrate of basepaper and paperboard.
25. A method of producing a coated paper or paperboard, but excluding photographic papers, comprising the steps of:
(a) forming a free flowing curtain comprising at least one layer, whereby the pigment of a composition forming at least one layer of the free flowing curtain has a particle size of at least 2 microns, and (b) contacting the curtain with a continuous web substrate of basepaper and paperboard.
26. The method of Claim 25 wherein the pigment in the coating composition contains at least 0.5 weight percent of particles that are greater than 10 microns in diameter.
27. The method of any of the preceding claims wherein the continuous web substrate has a velocity of at least 800 m/min and preferably of at least 1000 m/min.
28. The method of any of the preceding claims wherein the curtain is formed with a slot die.
29. The method of any of the preceding claims wherein the curtain is formed with a slide die.
30. The method of any of the preceding claims wherein at least one layer of the curtain comprises polyethylene oxide.
31. The method of any of the preceding claims wherein the curtain comprises polyethylene oxide in the interface layer.
CA2444925A 2002-10-15 2003-10-15 Process for making coated paper or paperboard Expired - Fee Related CA2444925C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
PCT/US2002/033114 WO2004035931A1 (en) 2002-10-15 2002-10-15 Process for making coated paper or paperboard
USPCT/US02/33114 2002-10-15

Publications (2)

Publication Number Publication Date
CA2444925A1 true CA2444925A1 (en) 2004-04-15
CA2444925C CA2444925C (en) 2012-01-03

Family

ID=32092101

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2444925A Expired - Fee Related CA2444925C (en) 2002-10-15 2003-10-15 Process for making coated paper or paperboard

Country Status (8)

Country Link
EP (1) EP1416088B1 (en)
CN (2) CN101063282B (en)
AT (1) ATE458859T1 (en)
AU (1) AU2002335832A1 (en)
BR (1) BR0304592A (en)
CA (1) CA2444925C (en)
DE (1) DE60331398D1 (en)
WO (1) WO2004035931A1 (en)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1249533A1 (en) 2001-04-14 2002-10-16 The Dow Chemical Company Process for making multilayer coated paper or paperboard
US7473333B2 (en) 2002-04-12 2009-01-06 Dow Global Technologies Inc. Process for making coated paper or paperboard
PL1664432T3 (en) * 2003-09-16 2018-01-31 Voith Patent Gmbh Method and device for producing decorative paper and the use thereof
DE10343273A1 (en) * 2003-09-17 2005-04-21 Voith Paper Patent Gmbh Coating machine for applying at least one color with a high solids content
DE102004062119A1 (en) * 2004-12-23 2006-07-13 Voith Paper Patent Gmbh Method of applying a multiple layer directly to a moving paper, board or other fibrous web
DE102004062120A1 (en) * 2004-12-23 2006-07-13 Voith Paper Patent Gmbh Method and apparatus for treating a moving paper, board or other fibrous web
PL1762377T3 (en) 2005-09-07 2008-12-31 Alcan Tech & Management Ltd A method for the preparation of a laminate
EP1800857A1 (en) * 2005-12-21 2007-06-27 Alcan Technology & Management Ltd. Curtain coating method
FI120206B (en) * 2006-10-03 2009-07-31 Metso Paper Inc Method for Determining the Coating Quantity of Single Coating Layers in Multi-Layer Curtain Coating
JP2008173577A (en) * 2007-01-19 2008-07-31 Voith Patent Gmbh Curtain coater
FR2911884B1 (en) 2007-01-31 2010-02-26 Arjowiggins Licensing Sas OFFSET-PRINTING WHITE SHEET WHICH HAS A HIGH FLUORESCENCE POWER AND METHOD FOR MANUFACTURING THE SAME
JP5977548B2 (en) * 2011-03-29 2016-08-24 日本製紙株式会社 Coated white paperboard and method for producing the same
EP2756129A4 (en) 2011-09-15 2015-01-28 Imerys Pigments Inc Compositions comprising kaolin treated with a styrene-based polymer and related methods
CN109790686B (en) * 2016-08-08 2022-03-15 维实洛克Mwv有限责任公司 Compostable paperboard with oil, grease and moisture resistance
CN106634350B (en) * 2016-12-23 2019-01-15 煤科集团杭州环保研究院有限公司 Aqueous low viscosity background color showering paint and its full aqueous insulation decoration integrated board facing production technology
JP7331314B2 (en) * 2019-03-29 2023-08-23 日本製紙株式会社 Method for producing paper barrier substrate
CN111576084B (en) * 2020-06-09 2022-06-14 广东彩乐智能包装科技有限公司 Fluorine-free waterproof oil-proof food-grade coating and preparation method thereof
US11549216B2 (en) 2020-11-11 2023-01-10 Sappi North America, Inc. Oil/grease resistant paper products
CN113529492B (en) * 2021-07-16 2023-02-03 东北电力大学 Preparation method of hydrophobic wallpaper base paper based on diatomite

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US3508947A (en) * 1968-06-03 1970-04-28 Eastman Kodak Co Method for simultaneously applying a plurality of coated layers by forming a stable multilayer free-falling vertical curtain
US3632374A (en) 1968-06-03 1972-01-04 Eastman Kodak Co Method of making photographic elements
CH591902A5 (en) * 1975-05-14 1977-10-14 Ciba Geigy Ag
CH613879A5 (en) * 1976-03-30 1979-10-31 Ciba Geigy Ag
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Also Published As

Publication number Publication date
BR0304592A (en) 2004-08-31
EP1416088B1 (en) 2010-02-24
AU2002335832A1 (en) 2004-05-04
CN101063282A (en) 2007-10-31
ATE458859T1 (en) 2010-03-15
CN1510214A (en) 2004-07-07
EP1416088A2 (en) 2004-05-06
DE60331398D1 (en) 2010-04-08
CN101063282B (en) 2011-11-23
CA2444925C (en) 2012-01-03
EP1416088A3 (en) 2004-05-12
WO2004035931A1 (en) 2004-04-29

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Effective date: 20161017