EP2000588A1 - Procédé d'application d'une couche double - Google Patents
Procédé d'application d'une couche double Download PDFInfo
- Publication number
- EP2000588A1 EP2000588A1 EP08156066A EP08156066A EP2000588A1 EP 2000588 A1 EP2000588 A1 EP 2000588A1 EP 08156066 A EP08156066 A EP 08156066A EP 08156066 A EP08156066 A EP 08156066A EP 2000588 A1 EP2000588 A1 EP 2000588A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- web
- precoat
- top coat
- coating
- 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
- 238000000034 method Methods 0.000 title claims description 14
- 239000011248 coating agent Substances 0.000 claims abstract description 18
- 238000000576 coating method Methods 0.000 claims abstract description 18
- 239000000049 pigment Substances 0.000 claims abstract description 7
- 238000004519 manufacturing process Methods 0.000 claims description 6
- 239000000123 paper Substances 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 2
- 235000011837 pasties Nutrition 0.000 claims description 2
- 239000000725 suspension Substances 0.000 claims description 2
- 238000007670 refining Methods 0.000 claims 1
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 7
- 238000010521 absorption reaction Methods 0.000 description 5
- 239000005995 Aluminium silicate Substances 0.000 description 4
- 235000012211 aluminium silicate Nutrition 0.000 description 4
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 4
- 229910000019 calcium carbonate Inorganic materials 0.000 description 3
- 239000010410 layer Substances 0.000 description 3
- 239000011247 coating layer Substances 0.000 description 2
- 238000003490 calendering Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000002657 fibrous material Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000004816 latex Substances 0.000 description 1
- 229920000126 latex Polymers 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
- 239000002562 thickening agent Substances 0.000 description 1
Images
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
- D21H19/00—Coated paper; Coating material
- D21H19/36—Coatings with pigments
- D21H19/38—Coatings with pigments characterised by the pigments
-
- 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
- D21H19/84—Paper comprising more than one coating on both sides of the substrate
-
- 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
Definitions
- the invention relates to a method for applying a double layer, consisting of primer and top coat, with a liquid to pasty application medium, in particular aqueous pigment suspension on at least one side of a running paper, cardboard or other fibrous web during their production and / or finishing.
- blade coaters In the production or refinement of paper, which had to be treated with a double line, ie primer and top coat, at least the top coat was previously applied with blade coaters (blade coaters). These coaters work with a squeegee element (blade), with which the application medium applied in excess is brought to the desired coating weight and thereby evened out or leveled. These coaters have poor runnability, especially at higher machine and web speeds. In addition, a separate application unit must be provided for each paper page.
- misting also depends heavily on the absorption capacity of the fibrous web. In the case of the top coat this absorption capacity is significantly reduced by the precoat, so that it can come here to a particular extent to Misting.
- the invention is therefore based on the object of specifying a method which avoids the disadvantages of the prior art.
- the object is achieved according to the characterizing part of claim 1, characterized in that for the applied to the fibrous web double layer, ie precoating and top coat, each a known film applicator for applying the coating medium is used in an indirect manner, wherein for the precoat such a coating medium is to be used which contains platelet-shaped pigments. This is the case, for example, with kaolin. It is expedient if the application medium for the precoat has an aspect ratio (i.e., length-to-thickness ratio of a platelet) of> 5, preferably> 15.
- the structure of the precoat can be broken up in such a way that the precoat becomes more open and its absorption capacity increases. As a result, the subsequent top coat applied to the precoat can be better drained. For the first time, it is possible to use high coating weights or application quantities without having to do so unwanted misting comes.
- the pre-painted web has low absorbency.
- the cause is the relatively dense, compact and impermeable precoat, which is used in the form of mostly ground, not too fine calcium carbonate with natural, broad particle size distribution as a pigment, in particular for the achievement of opacity and whiteness is considered. Therefore, especially when applying the top coat, even at low order quantity the dreaded misting occurs.
- the inventive method can be carried out at a high web speed during the production and / or finishing of the fibrous web.
- This web or machine speed can now be more than 1000 m / min, in particular more than 1200 m / min and preferably more than 1300 m / min, whereby the economy of the Process or the web production is particularly high.
- FIG. 1 shows the FIG. 1 in a rough schematic representation of the principle of the method according to the invention.
- FIG. 1 It is shown that a fibrous web 1, which is already predried, is provided with a double layer D.
- a first film applicator 2 for achieving a first coating layer or a precoat 3 and a second Filmrlandstechnik 4, which is the applicator 2 in the path L of the fibrous web 1 downstream and the achievement of a second coating layer or a top coat 5 is present.
- the first film applicator 2 consists of two with each other a Nip N1 forming applicator rollers 2.1 and 2.2, each of which a job unit 2.3 and 2.4 is assigned. With the application units 2.3 and 2.4, the application medium M1 is first applied to the surface of the two application rollers and then transferred in the nip N1 at the same time to both web sides 1a and 1b (with simultaneous double-sided coating). That on the web page 1a and web page 1b Applied application medium M1 is shown in dashed lines.
- the second film applicator 4 is identical to the first film applicator 2, which is very advantageous in terms of web guide, spare parts inventory, space requirements, maintenance, installation, etc. Accordingly, the application rollers are denoted by 4.1 and 4.2 and the associated application units with 4.3 and 4.4, the nip with N2 and the application medium with M2.
- the top coat 5 is shown by dotted line. This is applied by way of example only one side of the web page 1a, which is why the application unit was 4.4 swung from the applicator roll 4.1.
- the following pigment composition is chosen in the example: 90 parts of Hydrocarb 60 (calcium carbonate) and 10 parts of Capim NP (kaolin), the kaolin having an aspect ratio (width / thickness ratio) of 20.
- the rest of the coating M1 form latex and thickener.
Landscapes
- Paper (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102007026617A DE102007026617A1 (de) | 2007-06-08 | 2007-06-08 | Verfahren zum Aufbringen einer Doppelschicht |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP2000588A1 true EP2000588A1 (fr) | 2008-12-10 |
| EP2000588B1 EP2000588B1 (fr) | 2012-01-11 |
Family
ID=39832441
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP08156066A Not-in-force EP2000588B1 (fr) | 2007-06-08 | 2008-05-13 | Procédé d'application d'une couche double |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP2000588B1 (fr) |
| AT (1) | ATE541090T1 (fr) |
| DE (1) | DE102007026617A1 (fr) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014161755A1 (fr) * | 2013-04-05 | 2014-10-09 | Voith Patent Gmbh | Presse de pelliculage |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE202008016817U1 (de) | 2008-12-19 | 2009-02-26 | Voith Patent Gmbh | Beschichtungsvorrichtung |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1998054410A1 (fr) * | 1997-05-28 | 1998-12-03 | Stora Enso Oyj | Carton couche, son procede de production et recipients et emballage constitues de celui-ci |
| US5981011A (en) * | 1992-01-22 | 1999-11-09 | A*Ware Technologies, L.C. | Coated sheet material |
| EP1126081A2 (fr) * | 2000-02-18 | 2001-08-22 | Felix Schoeller jr Foto- und Spezialpapiere GmbH & Co. KG | Support pour couches d'enregistrement |
| EP1522629A1 (fr) * | 2003-10-08 | 2005-04-13 | M-real Oyj | Papier couche d'imprimierie |
| US20050089660A1 (en) * | 2003-10-28 | 2005-04-28 | Potlatch Corporation | Package coating, processes of making, and packaging systems |
| WO2006035234A2 (fr) * | 2004-09-30 | 2006-04-06 | Arjo Wiggins Fine Papers Limited | Produits couches multicouche et procede de couchage par voile destine a ces derniers |
| US20070048508A1 (en) * | 2003-04-24 | 2007-03-01 | Takayuki Kishida | Coated paper for printing |
| US20070054145A1 (en) * | 2003-09-19 | 2007-03-08 | Eiichiro Yokochi | Coated paper |
| EP1762656A2 (fr) * | 2005-09-07 | 2007-03-14 | Oji Paper Co., Ltd. | Papier couché |
-
2007
- 2007-06-08 DE DE102007026617A patent/DE102007026617A1/de not_active Withdrawn
-
2008
- 2008-05-13 EP EP08156066A patent/EP2000588B1/fr not_active Not-in-force
- 2008-05-13 AT AT08156066T patent/ATE541090T1/de active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5981011A (en) * | 1992-01-22 | 1999-11-09 | A*Ware Technologies, L.C. | Coated sheet material |
| WO1998054410A1 (fr) * | 1997-05-28 | 1998-12-03 | Stora Enso Oyj | Carton couche, son procede de production et recipients et emballage constitues de celui-ci |
| EP1126081A2 (fr) * | 2000-02-18 | 2001-08-22 | Felix Schoeller jr Foto- und Spezialpapiere GmbH & Co. KG | Support pour couches d'enregistrement |
| US20070048508A1 (en) * | 2003-04-24 | 2007-03-01 | Takayuki Kishida | Coated paper for printing |
| US20070054145A1 (en) * | 2003-09-19 | 2007-03-08 | Eiichiro Yokochi | Coated paper |
| EP1522629A1 (fr) * | 2003-10-08 | 2005-04-13 | M-real Oyj | Papier couche d'imprimierie |
| US20050089660A1 (en) * | 2003-10-28 | 2005-04-28 | Potlatch Corporation | Package coating, processes of making, and packaging systems |
| WO2006035234A2 (fr) * | 2004-09-30 | 2006-04-06 | Arjo Wiggins Fine Papers Limited | Produits couches multicouche et procede de couchage par voile destine a ces derniers |
| EP1762656A2 (fr) * | 2005-09-07 | 2007-03-14 | Oji Paper Co., Ltd. | Papier couché |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014161755A1 (fr) * | 2013-04-05 | 2014-10-09 | Voith Patent Gmbh | Presse de pelliculage |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2000588B1 (fr) | 2012-01-11 |
| ATE541090T1 (de) | 2012-01-15 |
| DE102007026617A1 (de) | 2008-12-11 |
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