WO2003050352A1 - Method for finishing board - Google Patents
Method for finishing board Download PDFInfo
- Publication number
- WO2003050352A1 WO2003050352A1 PCT/FI2002/000908 FI0200908W WO03050352A1 WO 2003050352 A1 WO2003050352 A1 WO 2003050352A1 FI 0200908 W FI0200908 W FI 0200908W WO 03050352 A1 WO03050352 A1 WO 03050352A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- coating
- web
- calender
- board
- finishing
- Prior art date
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
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21G—CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
- D21G1/00—Calenders; Smoothing 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
- D21H23/30—Pretreatment of the paper
Definitions
- Recycled board consists totally or partially of recycled fibers and is used e.g. for packages of dry foods, as well as packages for other than foodstuffs.
- WLC board is typically a quadruple or four-layer system, comprising, for example, a base layer (recycled pulp), a filler layer (recycled pulp), a chemical pulp layer, and a coating. Manufacturing amounts of WLC increase all the time, focusing primarily on Asia. While the quality of raw material deteriorates, the quality requirements for a finished product keep increasing and, thus, for example the coating process is commonly performed three times for a sufficient coverage. According to state of the art, the best grade WLC is obtained by pretreating the board surface prior to a coating process with a Yankee cylinder and a profiling machine calender.
- a method of the invention comprises first subjecting a board web to machine calendering, followed by subjecting the web to a pre-coating process, then by running the web through a long-nip calender and further to an actual coating station/stations for applying one or more coating layers to the web surface, and finally subjecting the web to calender finishing. Downstream of the actual coating station, upstream of calender finishing, the web can be further subjected to additional coating by blade coating for improving the web even further in terms of its smoothness and gloss.
- Fig. 1 shows schematically the composition of a typical WLC board
- Fig. 2 shows schematically one arrangement for implementing a method of the invention.
- Fig. 1 depicts schematically a multi-layer structure for one WLC board, which in the illustrated embodiment comprises a base layer 1 of recycled pulp, a filler layer 2, likewise of recycled pulp, a pulp layer 3, and a coating 4 which may consist of several coating layers.
- the exemplary embodiment of fig. 2 depicts one finishing method of the invention, wherein a board web W is first passed through a machine calender 10 for profiling its thickness. This is followed by passing the web to a blade coating station 11 for pre-coating in order to improve the web smoothness. Then the web is driven through a long-nip calender, for example a shoe calender 12, as shown in fig. 2, or a belt calender, for improving the topography of web surface. The long-nip calender is followed by passing the web to an actual coating station, which can be for example a spray coating station 13, a curtain coating station, or an Opticoat Duo coating station.
- an actual coating station which can be for example a spray coating station 13, a curtain coating station, or an Opticoat Duo coating station.
- the web surface is provided with one or more coating layers for achieving a desired coverage.
- the web is still subjected to calender finishing, for example with a soft calender 14 or a multi-roll calender for improving the web smoothness and gloss.
- calender finishing for example with a soft calender 14 or a multi-roll calender for improving the web smoothness and gloss.
- a blade coating for still improving the web smoothness and gloss.
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10297514T DE10297514T5 (en) | 2001-12-12 | 2002-11-15 | Process for finishing cardboard |
AU2002338999A AU2002338999A1 (en) | 2001-12-12 | 2002-11-15 | Method for finishing board |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI20012446A FI111281B (en) | 2001-12-12 | 2001-12-12 | Cardboard finishing procedure |
FI20012446 | 2001-12-12 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2003050352A1 true WO2003050352A1 (en) | 2003-06-19 |
Family
ID=8562465
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FI2002/000908 WO2003050352A1 (en) | 2001-12-12 | 2002-11-15 | Method for finishing board |
Country Status (5)
Country | Link |
---|---|
CN (1) | CN1284901C (en) |
AU (1) | AU2002338999A1 (en) |
DE (1) | DE10297514T5 (en) |
FI (1) | FI111281B (en) |
WO (1) | WO2003050352A1 (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1382742A2 (en) * | 2002-07-18 | 2004-01-21 | Voith Paper Patent GmbH | Apparatus and process for impregnating a web of paper or board |
EP1467020A1 (en) * | 2003-04-11 | 2004-10-13 | Voith Paper Patent GmbH | Method for treating a cardboard web |
EP1516960A1 (en) * | 2003-09-17 | 2005-03-23 | Voith Paper Patent GmbH | Process for coating a fibrous web |
EP1541760A1 (en) * | 2003-12-13 | 2005-06-15 | Voith Paper Patent GmbH | Coating device |
WO2005095711A1 (en) * | 2004-03-30 | 2005-10-13 | Metso Paper, Inc. | A method for making a coated fibrous web |
EP1593778A1 (en) * | 2004-05-06 | 2005-11-09 | Voith Paper Patent GmbH | Process and apparatus for treating a web of paper or board |
WO2006003263A1 (en) * | 2004-07-02 | 2006-01-12 | Metso Paper, Inc. | Method and apparatus for coating a fibrous web |
JP2014208934A (en) * | 2013-03-28 | 2014-11-06 | 日本製紙株式会社 | Coated white paperboard and production method thereof |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102010038530A1 (en) * | 2010-07-28 | 2012-02-02 | Voith Patent Gmbh | Process for producing a fibrous web, in particular a paper or board web |
DE102020112932B4 (en) | 2020-05-13 | 2022-03-24 | Voith Patent Gmbh | fiber web smoothing |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19545408A1 (en) * | 1995-12-06 | 1997-06-12 | Voith Sulzer Papiermasch Gmbh | Finishing surface of card web for e.g. box manufacture by precoating, pre-calendering and finish coating |
WO1999064672A1 (en) * | 1998-06-10 | 1999-12-16 | Valmet Corporation | Method for manufacture of paper and a paper machine |
WO1999067462A1 (en) * | 1998-06-25 | 1999-12-29 | Valmet Corporation | Method and arrangement for calendering paper and board before and after coating |
US6022448A (en) * | 1995-03-16 | 2000-02-08 | Korsnab Ab | Coated paperboard for formed articles |
WO2000070146A2 (en) * | 1999-05-14 | 2000-11-23 | Metso Paper, Inc. | Standardizing the cross-direction thickness profile prior to long-nip calendering |
WO2000070144A1 (en) * | 1999-05-12 | 2000-11-23 | Metso Paper, Inc. | Method for the manufacture of paper, and paper machine line |
-
2001
- 2001-12-12 FI FI20012446A patent/FI111281B/en not_active IP Right Cessation
-
2002
- 2002-11-15 CN CN 02824504 patent/CN1284901C/en not_active Expired - Fee Related
- 2002-11-15 AU AU2002338999A patent/AU2002338999A1/en not_active Abandoned
- 2002-11-15 WO PCT/FI2002/000908 patent/WO2003050352A1/en not_active Application Discontinuation
- 2002-11-15 DE DE10297514T patent/DE10297514T5/en not_active Withdrawn
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6022448A (en) * | 1995-03-16 | 2000-02-08 | Korsnab Ab | Coated paperboard for formed articles |
DE19545408A1 (en) * | 1995-12-06 | 1997-06-12 | Voith Sulzer Papiermasch Gmbh | Finishing surface of card web for e.g. box manufacture by precoating, pre-calendering and finish coating |
WO1999064672A1 (en) * | 1998-06-10 | 1999-12-16 | Valmet Corporation | Method for manufacture of paper and a paper machine |
WO1999067462A1 (en) * | 1998-06-25 | 1999-12-29 | Valmet Corporation | Method and arrangement for calendering paper and board before and after coating |
WO2000070144A1 (en) * | 1999-05-12 | 2000-11-23 | Metso Paper, Inc. | Method for the manufacture of paper, and paper machine line |
WO2000070146A2 (en) * | 1999-05-14 | 2000-11-23 | Metso Paper, Inc. | Standardizing the cross-direction thickness profile prior to long-nip calendering |
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1382742A2 (en) * | 2002-07-18 | 2004-01-21 | Voith Paper Patent GmbH | Apparatus and process for impregnating a web of paper or board |
EP1382742A3 (en) * | 2002-07-18 | 2005-02-09 | Voith Paper Patent GmbH | Apparatus and process for impregnating a web of paper or board |
EP1467020A1 (en) * | 2003-04-11 | 2004-10-13 | Voith Paper Patent GmbH | Method for treating a cardboard web |
EP1516960A1 (en) * | 2003-09-17 | 2005-03-23 | Voith Paper Patent GmbH | Process for coating a fibrous web |
EP1541760A1 (en) * | 2003-12-13 | 2005-06-15 | Voith Paper Patent GmbH | Coating device |
WO2005095711A1 (en) * | 2004-03-30 | 2005-10-13 | Metso Paper, Inc. | A method for making a coated fibrous web |
JP2007530811A (en) * | 2004-03-30 | 2007-11-01 | メッツォ ペーパー インコーポレイテッド | Method for producing coated fiber web |
EP1593778A1 (en) * | 2004-05-06 | 2005-11-09 | Voith Paper Patent GmbH | Process and apparatus for treating a web of paper or board |
US7422659B2 (en) | 2004-05-06 | 2008-09-09 | Voith Paper Patent Gmbh | Method and apparatus for treating a web of paper or board |
DE102004022416B4 (en) * | 2004-05-06 | 2013-02-21 | Voith Patent Gmbh | Method and device for treating a web of paper or cardboard |
WO2006003263A1 (en) * | 2004-07-02 | 2006-01-12 | Metso Paper, Inc. | Method and apparatus for coating a fibrous web |
JP2014208934A (en) * | 2013-03-28 | 2014-11-06 | 日本製紙株式会社 | Coated white paperboard and production method thereof |
Also Published As
Publication number | Publication date |
---|---|
CN1284901C (en) | 2006-11-15 |
DE10297514T5 (en) | 2004-11-18 |
CN1602377A (en) | 2005-03-30 |
FI111281B (en) | 2003-06-30 |
FI20012446A0 (en) | 2001-12-12 |
AU2002338999A1 (en) | 2003-06-23 |
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