EP2066841A1 - Verfahren zur herstellung einer beschichteten papier-, karton- oder anderen faserstoffbahn - Google Patents
Verfahren zur herstellung einer beschichteten papier-, karton- oder anderen faserstoffbahnInfo
- Publication number
- EP2066841A1 EP2066841A1 EP07820018A EP07820018A EP2066841A1 EP 2066841 A1 EP2066841 A1 EP 2066841A1 EP 07820018 A EP07820018 A EP 07820018A EP 07820018 A EP07820018 A EP 07820018A EP 2066841 A1 EP2066841 A1 EP 2066841A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- web
- drying
- application medium
- coater
- fibrous web
- 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
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
- D21H23/74—Apparatus permitting switching from one technique to another
-
- 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
-
- 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
-
- 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
Definitions
- the invention relates to a process for the production of a coated paper, board or other fibrous web with the following steps: web formation from a pulp mixture, with a headbox and a wire section, dewatering in a press section, drying in a dryer section consisting of drying cylinders to the formed To dry fibrous web at least to a residual moisture content, applying a simultaneous primer on both sides of the web with a glue or film press, for applying starch or pigment-containing application medium, post-drying with non-contact dryers and an existing drying cylinders night after dryer section, as well as pre-smoothing with a Softnipp- or Hartnipp - calender.
- the fibrous web is usually still provided with at least one top coat.
- several coating devices are often used. For example, external film coater and blade coater and a final external smoothing, so in the offline process used.
- the coating with different coating units or coater types is currently only possible offline and with the formation of different, complicated and long web paths.
- a separate drying or with displaced driers is necessary after each application process.
- the transfer of the fibrous web in these areas is complicated.
- the object of the invention is therefore to provide an on-line method which does not have the disadvantages mentioned.
- the object of the invention is achieved with a method according to the characterizing part of Claim 1 solved.
- a pigment-containing application medium is applied to only one web side of the fibrous web, for which a first coating device, for example a film coater for application of the application medium in an indirect manner by means of an applicator roll and / or a second Coating device, such as a Bladecoater for applying the application medium is used in a direct manner and wherein both mentioned coating devices or coaters are selectively operable and thereby retains the fibrous web a predetermined, over a subsequent stationary contactless drying ranging web travel path.
- a first coating device for example a film coater for application of the application medium in an indirect manner by means of an applicator roll and / or a second Coating device, such as a Bladecoater for applying the application medium is used in a direct manner and wherein both mentioned coating devices or coaters are selectively operable and thereby retains the fibrous web a predetermined, over a subsequent stationary contactless drying ranging web travel path.
- the invention "kills several birds with one stone".
- the fibrous web is not burdened too much by the single-sided application and therefore tends to tear off far less.
- the short web path maintained between the two types of coater film coater and blade coater
- good runability and thus a considerably less expensive production process are possible.
- it saves at least one additional contactless drying unit, which in a previously performed bypass web guide for an alternate coating option, for example, to get from one coater to another coater, would be necessary.
- the order of the coating devices is variable. However, the arrangement of a film and then a blade coater is preferred first, because a more uniform coating layer is thereby expected.
- a pigment-containing coating medium is applied in the same way as described above, also on the second side of the sheet. This achieves a high-quality double-sided coated fibrous web, in particular a paper coated on both sides, which can then be printed particularly well, for example.
- coated fibrous web is finally smoothed, such that either each side of the web is treated individually and sequentially with at least one one-nip calender or both sides with at least one multi-tip calender or a combined , made from single-nipp and multi-tip calendars.
- the said film coater is equipped with an applicator roll assigned to the web side to be coated.
- This application roller is in turn associated with an application unit, for example a nozzle unit, which delivers the application medium to the application roller and from which the application medium is transferred to the web side of the fibrous web to be coated.
- This coating process is referred to as indirect application.
- the said blade coater downstream of the fibrous web runs, with one of the web applicator units to be coated and a downstream doctoring element or nozzle applicator with short exposure time (SDTA, i.e. Short Dwell Time Applicator), the application medium in the process according to the invention on the same side of the web.
- SDTA Short Dwell Time Applicator
- nozzle application unit it is also possible, for example, to use a so-called free-jet nozzle aggregate which is distributed by the applicant's company under the name "Jetflow.” This type of order is referred to as a direct order, because the application medium is used directly, ie without transfer element, such as the applicator roll. is applied to the fibrous web.
- An alternative embodiment of the invention may consist in that instead of arranging both types of coater successively on the web travel path of the fibrous web and to use mutually by pivoting the desired coater, it is also possible to use only one module of a Coaterart.
- a provided module of a coater type for example the film coater, is exchanged in a simple manner for the other existing module of the other coater type, for example the blade coater or vice versa.
- predrying can be an impingement drying developed and sold by the company of the applicant. It should also be added that in certain cases it makes sense to pre-smooth the fibrous web before the first line, that is to say before the first application of the application medium, in particular with a film coater. The order quality can be increased thereby.
- the inventive method is particularly suitable for the production of LWC
- the method allows high machine speeds of more than 1300 m / min, in particular more than 1500 m / min.
- Figure 1 a schematic representation of an overall machine for producing a coated fibrous web in which the inventive method takes place.
- Figures 2 to 11 different variants of coating options, following the pre-calendering
- Web formation from a pulp mixture with a headbox 2 and a wire section 3, dewatering in a press section 4, drying in a Drying cylinders 5 existing drying section 6 to dry the formed fibrous web 7 at least to a residual moisture content.
- a simultaneous primer on both sides of the web 7a and 7b with a glue or film press 8 for applying starch or pigment-containing application medium.
- a dryer section 10 consisting of dryer sections 11, as well as pre-smoothing with a soft-nip or a hard-nip calender 12.
- a pigment-containing application medium 13 (coating color) is applied to only one side of the web 7a of the fibrous web 7.
- both a film coater 14 for applying the application medium 13 in an indirect manner, and a blade coater 15 for applying the same or also a different application medium 16 (possibly in a different composition) are used directly.
- the fibrous web 7 maintains a predetermined short web travel path extending beyond a subsequent contactless drying 17, consisting of infrared and air dryers 17a, 17b and 17c.
- the film coater consists of an applicator roll 14a, which is set against the web side 7a and has a nozzle application unit 14b and a counter roller 14c on the other web side 7b.
- the applicator roll 14a is pressed against the counter roll 14c, so that aquestnipp arises between two rollers 14a and 14c, in which the fibrous web page 7a receives the application medium 13.
- the Bladecoater 15 consists of a coating unit 15a and a subsequent doctor element 15b for dosing and / or comparison of Application layer. Both units 15a and 15b are also employed during the coating process against a counter-roller 15c on the other side of the web 7b.
- the calendering or smoothing is carried out such that either each web page 7a or 7b is treated individually and successively with at least one single-nip calender 19 or both web pages 7a and 7b with at least one multi-tip calender 20 or one combined single-nip and multi-tip calenders.
- the single-nip calenders 19 are preferably made of a combination of heated metal rollers and soft-coated, elastic rollers. With these so-called soft-nib calenders 19 one produces matte, glossy paper, while with the multi-tip calender 20 high gloss is produced.
- FIG. 2 shows the fibrous web 7 with a flat web guide running via different guide rollers 21 and a spreader roller 22 in the direction L.
- the film coater 14 or the application unit 14b assigned to the application roller 14a applies the application medium 13 to the web side 7a of the fibrous web 7, while the existing blade coater is not in use and therefore also the application unit 15a, the doctor element (or blade) ) 15b and a scraper cleaning 15d for the counter-roller 15c are pivoted.
- This track guide is characterized by short trains and easy transfer options.
- FIG. 2 In principle, the same flat web guide, which brings the same advantages, is shown in FIG.
- the blade coater 15 instead of the film coater 14, the blade coater 15 is used here for the direct application of the application medium 13 or even 16. Therefore, the application roller 14a, the application unit 14b and a cleaning scraper 14d for the counter-roller 14c are swung away.
- the application medium 13 is applied to the web side 7a of the fibrous web 7, as in FIG. 2, with the film coater 14 or with the applicator roll 14a and the application unit 14a assigned to the applicator roll 14a, whereas the first arranged blade coater 15 is not in use and therefore also the application unit 15a, the squeegee element (or blade) 15b and a cleaning scraper 15d for the counter-roller 15c are pivoted away.
- the variants according to FIGS. 8 and 9 each show compact solutions with advantageous, extremely short track trains.
- the inclined film coater 14 is again present, as in FIG. 4 or 5, and a blade coater 15 is present.
- Figure 8 shows that with the film coater 14, or with the applicator roll 14a and the applicator roll 14a associated applicator unit 14b the application medium 13 is applied to the web side 7a of the fibrous web 7, while the subsequently arranged Bladecoater 15 is not in use and Therefore, together with its doctor element (or blade) 15b is pivoted.
- the blade coater 15 is used for the direct application of the application medium 13 or also 16.
- a so-called Short Dwell Time Applicator (SDTA) 15.1 is used as blade coater 15.
- This SDTA 15.1 works with an application nozzle and an immediately downstream doctoring element for the immediate equalization or adjustment of the coating weight of the applied application medium.
- this embodiment is particularly compact, since at the same time the counter-roller 14c of the film coater 14, which is not otherwise used here, serves as counter-roller for the SDTA 15.1.
- FIGS. 19 and 11 show modular solutions. With these solutions also very short web trains and a very compact design are possible. If only one application layer is to be applied, according to these variants, only one counter-roller 14c with cleaning scraper 14d needs to be installed so that it is resistant to the cold.
- exchange modules for the optional use of a film coater 14 or a blade coater 15 serve either elements for film coating, which are identified as M1 in Figure 10 or elements for Bladesthus, which are marked in Figure 11 as M2.
Landscapes
- Paper (AREA)
- Coating Apparatus (AREA)
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102006044822A DE102006044822A1 (de) | 2006-09-20 | 2006-09-20 | Verfahren zur Herstellung einer beschichteten Papier-, Karton- oder anderen Faserstoffbahn |
PCT/EP2007/059200 WO2008034713A1 (de) | 2006-09-20 | 2007-09-04 | Verfahren zur herstellung einer beschichteten papier-, karton- oder anderen faserstoffbahn |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2066841A1 true EP2066841A1 (de) | 2009-06-10 |
EP2066841B1 EP2066841B1 (de) | 2012-03-21 |
Family
ID=38846406
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP07820018A Not-in-force EP2066841B1 (de) | 2006-09-20 | 2007-09-04 | Verfahren zur herstellung einer beschichteten papier-, karton- oder anderen faserstoffbahn |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP2066841B1 (de) |
JP (1) | JP2010504442A (de) |
AT (1) | ATE550488T1 (de) |
DE (1) | DE102006044822A1 (de) |
WO (1) | WO2008034713A1 (de) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102009028511A1 (de) * | 2009-08-13 | 2011-02-17 | Voith Patent Gmbh | Verfahren und Vorrichtung zur Papierherstellung |
DE102010038530A1 (de) * | 2010-07-28 | 2012-02-02 | Voith Patent Gmbh | Verfahren zur Herstellung einer Faserstoffbahn, insbesondere einer Papier- oder Kartonbahn |
DE102012210141A1 (de) | 2012-06-15 | 2013-12-19 | Metso Paper, Inc. | Vorrichtung und Verfahren zur Beschichtung einer sich bewegenden Faserbahn |
DE102017211843B4 (de) * | 2017-07-11 | 2019-02-14 | Koenig & Bauer Ag | Druckmaschine mit einem nach dem Inkjet-Verfahren arbeitenden Druckwerk sowie Verfahren zur Vorbereitung von Bedruckstoff |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE465709B (sv) * | 1990-04-03 | 1991-10-21 | Btg Kaelle Inventing Ab | Foerfarande foer tvaasidig bestrykning av en loepande bana medelst tvaa motstaellda oeverfoeringsvalsar |
DE19545408C5 (de) * | 1995-12-06 | 2004-01-22 | Voith Sulzer Papiermaschinen Gmbh | Verfahren zur Oberflächenveredelung einer Kartonbahn |
DE19623622A1 (de) * | 1996-06-13 | 1997-12-18 | Voith Sulzer Papiermasch Gmbh | Verfahren und Vorrichtung zur Beschichtung einer laufenden Materialbahn |
JP4447060B2 (ja) * | 1997-10-31 | 2010-04-07 | 日本製紙株式会社 | 多層塗被紙の製造方法 |
JP3429997B2 (ja) * | 1997-12-26 | 2003-07-28 | 日本製紙株式会社 | 光沢塗被紙の製造方法及び光沢塗被紙 |
JP4309486B2 (ja) * | 1998-02-09 | 2009-08-05 | 日本製紙株式会社 | 塗被紙の製造方法 |
FI991096A (fi) * | 1999-05-12 | 2000-11-13 | Valmet Corp | Menetelmä paperin, erityisesti hienopaperin, valmistamiseksi ja paperi konelinja erityisesti hienopaperin valmistamista varten |
FI105118B (fi) * | 1999-05-12 | 2000-06-15 | Valmet Corp | Menetelmä paperi- tai kartonkirainan valmistamiseksi ja paperi- tai kartonkikone |
JP2001073295A (ja) * | 1999-08-31 | 2001-03-21 | Nippon Paper Industries Co Ltd | オフセット印刷用塗工紙の製造方法 |
FI20011291A (fi) * | 2001-06-18 | 2002-12-19 | Metso Paper Inc | Menetelmä ja paperikone päällystetyn paperin valmistamiseksi |
FI110957B (fi) * | 2001-12-10 | 2003-04-30 | Metso Paper Inc | Menetelmä ja sovitelma monikerrospäällystyksen tekemiseksi |
DE102004041537A1 (de) * | 2004-08-27 | 2006-03-02 | Voith Paper Patent Gmbh | Verfahren und Vorrichtung zum Herstellen einer gestrichenen LWC-Papierbahn |
JP5038590B2 (ja) * | 2004-11-04 | 2012-10-03 | 大王製紙株式会社 | 塗工紙の製造方法及び製造設備 |
JP4832750B2 (ja) * | 2004-11-15 | 2011-12-07 | 大王製紙株式会社 | 塗工紙の製造方法及び製造設備 |
JP5058442B2 (ja) * | 2005-01-11 | 2012-10-24 | 大王製紙株式会社 | 塗工紙の製造方法及び製造設備 |
JP2007177378A (ja) * | 2005-12-28 | 2007-07-12 | Daio Paper Corp | 塗工紙の製造方法及び塗工紙 |
-
2006
- 2006-09-20 DE DE102006044822A patent/DE102006044822A1/de not_active Withdrawn
-
2007
- 2007-09-04 AT AT07820018T patent/ATE550488T1/de active
- 2007-09-04 WO PCT/EP2007/059200 patent/WO2008034713A1/de active Application Filing
- 2007-09-04 JP JP2009528671A patent/JP2010504442A/ja active Pending
- 2007-09-04 EP EP07820018A patent/EP2066841B1/de not_active Not-in-force
Non-Patent Citations (1)
Title |
---|
See references of WO2008034713A1 * |
Also Published As
Publication number | Publication date |
---|---|
WO2008034713A1 (de) | 2008-03-27 |
DE102006044822A1 (de) | 2008-04-03 |
EP2066841B1 (de) | 2012-03-21 |
ATE550488T1 (de) | 2012-04-15 |
JP2010504442A (ja) | 2010-02-12 |
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