EP0930161B1 - Méthode et dispositf pour le revêtement de produits imprimés - Google Patents

Méthode et dispositf pour le revêtement de produits imprimés Download PDF

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Publication number
EP0930161B1
EP0930161B1 EP19980100868 EP98100868A EP0930161B1 EP 0930161 B1 EP0930161 B1 EP 0930161B1 EP 19980100868 EP19980100868 EP 19980100868 EP 98100868 A EP98100868 A EP 98100868A EP 0930161 B1 EP0930161 B1 EP 0930161B1
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EP
European Patent Office
Prior art keywords
engraved roll
protective layer
printed
printed product
engraved
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.)
Expired - Lifetime
Application number
EP19980100868
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German (de)
English (en)
Other versions
EP0930161A1 (fr
Inventor
Peter Riess
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.)
Mohn Media Mohndruck GmbH
Original Assignee
MOHNDRUCK GRAPHISCHE BETRIEBE GmbH
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 MOHNDRUCK GRAPHISCHE BETRIEBE GmbH filed Critical MOHNDRUCK GRAPHISCHE BETRIEBE GmbH
Priority to DE59808261T priority Critical patent/DE59808261D1/de
Priority to EP19980100868 priority patent/EP0930161B1/fr
Publication of EP0930161A1 publication Critical patent/EP0930161A1/fr
Application granted granted Critical
Publication of EP0930161B1 publication Critical patent/EP0930161B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F23/00—Devices for treating the surfaces of sheets, webs, or other articles in connection with printing
    • B41F23/08—Print finishing devices, e.g. for glossing prints

Definitions

  • the invention is concerned with avoidance or reduction due to production loads, e.g. by wiping or scrubbing color abrasion caused by an offset printed product in the Inline process in the production of the printed product as well with rewetting the paper after drying the Paint.
  • rubbing is caused by movements of printed sheets caused on a vibrating table. He understands by wiping Expert abrasion due to one-time loads, e.g. by touching with production management elements for further processing of the freshly printed product.
  • the color abrasion is essentially influenced by the parameters Substrate, printing ink and production load during further processing after the paint application.
  • the printing ink can be more abrasion-resistant thanks to special formulations be designed.
  • the invention is concerned with this parameter but not.
  • the invention is concerned with reducing the effects the mechanical loads on the printed product drying the paint.
  • the sheets are after drying laid out on pallets and transported for further processing.
  • abrasion occurs.
  • This printing process also poses additional burdens the usual print finishing, e.g. in the folding machine, in the collator, in the perfect binder, in the trimmer and in the thread sewing machine.
  • Lacquer layers provide good protective effects against abrasion; however, they must be applied in considerable thickness because thin layers of lacquer in a homogeneous distribution on the surface of the printed product cannot be achieved.
  • Varnishes for another purpose are applied using chambered doctor blade technology, among other things.
  • a combination of an aluminum chamber filled with lacquer, an anilox roller for lacquer application, a lacquer forme cylinder and a printing cylinder is essentially used.
  • Anilox rollers with a scoop volume of 6.5 cm 3 / m 2 are available for the smallest order quantities for the purposes mentioned (MAN Roland 29 No. 39 / May 1997, page 8).
  • a protective layer in question according to the invention which may have to be applied even thinner, because otherwise the quality of the product would be changed, cannot be achieved in a homogeneous distribution.
  • Laminations with plastic films result in the safest protection of the paint application against mechanical product loads, However, scratches can occur in the laminate Affect the printed image. In addition, in contrast to the Painting and applying a sliding emulsion the lamination cannot be carried out inline. In this respect there is also the lamination not optimal and also very expensive.
  • the invention aims in particular to improve the protective effect of sliding emulsions, especially on printed matt-coated ones Papers, but also the application of a Lacquer layer possible and simplified according to the invention and the Effectiveness of the lacquer layer should be increased.
  • the object of the invention is to provide methods and devices for Production of offset printed products with regard to inline application a protective layer on the printed surface to improve such that a protective layer with sufficient Smudge and abrasion resistance spotless and relatively thin as well can be applied homogeneously distributed, the application none high equipment expenditure.
  • a protective layer according to the invention is both in sheetfed offset printing machines as well as in web offset printing machines integrable (inline).
  • The is particularly advantageous Use in web offset printing presses after the cooling device or downstream of the cooling rollers.
  • the method according to the invention and the device according to the invention work spotless with UV paint formulations and paint dispersions as well as with silicone, silicone wax and wax emulsions.
  • silicone wax is particularly effective.
  • wax emulsions It has been surprising We found that emulsions with higher silicone wax concentrations than when applied with roller applicators will result in better protective layers.
  • the emulsions are usually with concentrations between 35 and 40% Silicone oil or wax content delivered. Dilutions up to about 10% are effective according to the invention. Emulsions with 8% silicone oil and / or wax content are rejected. Especially Concentration fractions between 10 and 30 are preferred, preferably between 15 and 25%.
  • the invention is particularly applicable to offset printing products, paper as matt or semi-matt coated paper exhibit.
  • the invention is particularly effective when used of matt papers as printing material.
  • an anilox roller with a doctor device used for the application of the protective layer being essential is that the transfer of the protective layer medium to the printed product directly, that is, without interposing another Roller, e.g. a rubber roller or a forme cylinder from the Anilox roller takes place. It is also essential that the application in opposite driving style of the anilox roller with respect to the printed Product e.g. the paper web or sheet of paper carried out becomes.
  • the counter-rotating peripheral speed of the anilox roller is expediently about 30 to 100%, in particular 80 to 100% of the Running speed of the printed product e.g. the paper web or the paper sheet.
  • an anilox roller provided with a ceramic coating a so-called ceramic anilox roller, which is laser-engraved, is particularly advantageous.
  • the well engraved laser engraving is preferably produced with 120 to 180, in particular 140 to 160 lines per cm, which can transfer approximately 9 to 5 g / m 2 of protective layer emulsion. It is advantageous to provide grids with a grid angle between 45 and 60 ° and cells in honeycomb form.
  • a paper wrap angle is on the anilox roller from 3 to 25 °, preferably from 6 to 18 ° for roller diameters from 180 to 220 cm, in particular from 190 to 210 cm used.
  • a chambered doctor blade known per se is particularly advantageous. expediently also a so-called pressure chamber doctor device to combine with the anilox roller used according to the invention.
  • a web offset printing press shown schematically in FIG. 3 is from a reel changer 1 at least one paper web 3 into a drafting system and from the drafting system into printing units 5 promoted.
  • After printing on the paper web 3 in the printing units 5 runs the printed product into a dryer 6, in where the paint is dried or solvent from the paint to be driven.
  • the printed paper web then arrives 3 with the dried paint in a cooling unit 7 and from there in a rewetting system 8, a protective layer application system 9 and finally into a folder 10.
  • the folder 10 the paper web 3 is cut, folded and laid out. It usual further processing then takes place End product, the printed product.
  • the paper web with hot air heated to about 140 ° C. With this hot air drying the Original moisture of the paper from 3.0 to 4.5% undesirable 0.5 to 1.0% absolute humidity reduced. A paper moisture in the A range of 3.0 to 4.5% is necessary to ensure the optimal Paper properties such as Dimensional stability and impact behavior of a book or magazine can and thus the paper later no moisture uncontrolled from the environment.
  • the rewetting system 8 is expediently downstream of the cooling unit 7.
  • an application device is used as the application device 9 11 used according to FIG. 1.
  • This order facility 11 has a ceramic anilox roller 12, one on the anilox roller 12 attached doctor blade device 13 and two from the anilox roller 12 spaced guide rollers 14, 15.
  • the in the running direction 2 transported printed paper web 3 is transverse to the direction of travel 2 laterally next to the axis of rotation 16 of the anilox roller 12 the outer surface 17 of the anilox roller 12 is pressed.
  • This is what the upstream and downstream in the direction 2 of the anilox roller 12 Guide rollers 14, 15, of which the roller 14 in the running direction and the other roller 15 is arranged behind the anilox roller 12 are.
  • At least one of the rollers 14, 15 is perpendicular to it Axis of rotation in the double arrow direction 18 displaceably mounted.
  • both rollers 14, 15 are in the double arrow direction 18 removable.
  • the transferability can also others Directions.
  • the paper web 3 With the rollers 14, 15, the paper web 3 becomes linear to flat, preferably so flat on the lateral surface 17 of the Anilox roller 12 pressed that it has a certain area of the jacket 19 or the anilox roller 12 with a certain wrap angle ⁇ spanned.
  • the chamber doctor blade 13 Located below the transformer area 19 in the 3 or 6 o'clock position with respect to the anilox roller 12 the chamber doctor blade 13, in which the protective layer medium 21 is located and from which with squeegee medium 21 from which itself rotating anilox roller 12 is stripped, the partial areas immersed in the medium 21.
  • the schematic structure of a doctor blade 13 is just like one Anilox roller 12 according to the invention can be seen in FIG. 2.
  • one Container 20 is the protective layer medium 21.
  • the anilox roller 12 In the Medium 21 dips the anilox roller 12 laterally with a partial area next to the axis of rotation 16.
  • On the opposite Side of the axis of rotation 16 spans the paper web 3 in the reclamping area 19 the anilox roller 12.
  • the direction of rotation (arrow 22) of the Anilox roller 12 is preferably opposite to direction of rotation 2 the paper web 3, while the direction of rotation of the guide rollers 14, 15 (Arrows 23) is aligned with the direction of rotation 2.
  • both sides it is expedient a second identical coating system or application device 11 used on the other side of the paper web 3, whose anilox roller 12, for example, instead of the guide roller 15 is arranged such that both the first and the second Anilox roller 12 with paper web 3 each determined Wrap angle ⁇ or wrap area 19 forms (not ) Shown.
  • each well 24 receives sufficient medium 21, that is stores at least as much as sucked from the paper web 3 or should be pulled out. Form and depth are preferred the well 24 is chosen such that more emulsion in one well is present when removed from the paper web 3 can.
  • a predetermined intake quantity of the cells 24 Emulsion 21 is in a manner known per se by the doctor device 25, 27 of the doctor blade 13 ensures the superfluous Strips medium 21 from the outer surface 17 of the anilox roller 12.
  • a doctor blade device 13 one in itself known pressure chamber doctor device can be used.
  • the cups 24 are expediently in the jacket of the anilox roller 12 shot with laser beams, preferably two shots can be used per well. From the resulting The shape of the cup 24 results in an optimal Storage capacity for e.g. a relatively light liquid wax emulsion, which tends to be generated by centrifugal force when rotating the Anilox roller 12 to be pushed out of the well 24.
  • the device according to the invention and the emulsions also for rewetting, especially used immediately after cooling.
  • a separate rewetting system is not required.
  • the emulsions are based on the amount of solids in the emulsion and in terms of the amount applied to the Paper web matched that both a desired optimal rewetting moisture as well as a set optimal coating. For this particularly rational working processes, emulsions are used whose solids content is empirically determined, whose composition in the rest, however, is in the range already specified above.
  • Particularly suitable for achieving the synergistic effect are the silicone, silicone wax and wax emulsions.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Paper (AREA)
  • Printing Methods (AREA)

Claims (19)

  1. Procédé pour la production d'un produit d'impression offset comme, par exemple, un livre ou une revue ou analogue, dans lequel un dépôt d'encre est imprimé sur une matière d'impression en papier, le dépôt d'encre est séché ou durci, le papier est éventuellement ré-humidifié et le produit imprimé est transformé en le produit d'imprimerie à l'aide de dispositifs travaillant mécaniquement, et dans lequel on dépose un milieu de couche protectrice sur la surface imprimée du produit imprimé, avant la transformation, pour la formation d'une couche protectrice, en agissant en ligne, avec utilisation d'un cylindre tramé entraíné, rotatif, sur le produit imprimé transporté en continu,
    caractérisé en ce que
    a) le milieu de couche protectrice est déposé directement du rouleau tramé sur le produit imprimé par le fait qu'on fait passer le produit imprimé sur la surface latérale du rouleau tramé, dans une région d'angle d'embrassement de mise en contact prédéterminée, et
    b) le rouleau tramé est entraíné en sens inverse de la direction de défilement du produit imprimé.
  2. Procédé selon la revendication 1,
    caractérisé en ce qu'on dépose, en qualité de milieu de couche protectrice, une formule d'enduction de laque ou une dispersion de laque.
  3. Procédé selon la revendication 1,
    caractérisé en ce qu'on dépose, en qualité de milieu de couche protectrice, une émulsion de silicone, de cire de silicone ou de cire.
  4. Procédé selon la revendication 1 ou 2,
    caractérisé en ce qu'on dépose avec le rouleau tramé une émulsion de 10 à 30%, en particulier de 15 à 25%.
  5. Procédé selon une ou plusieurs des revendications 1 à 4,
    caractérisé en ce qu'il est appliqué en ligne dans le procédé d'impression offset à bobines après le refroidissement de l'encre d'impression.
  6. Procédé selon une ou plusieurs des revendications 1 à 5,
    caractérisé en ce qu'il est appliqué dans le cas de produits imprimés dont la matière d'impression est du papier semi-mat, couché mat, en particulier couché mat.
  7. Procédé selon une ou plusieurs des revendications 1 à 6,
    caractérisé en ce qu'on utilise un rouleau tramé muni d'un dispositif de racle à chambre.
  8. Procédé selon une ou plusieurs des revendications 1 à 7,
    caractérisé en ce qu'on utilise un rouleau tramé qui est revêtu d'une matière céramique.
  9. Procédé selon une ou plusieurs des revendications 1 à 8,
    caractérisé en ce qu'on utilise un rouleau tramé possédant une trame gravée au laser.
  10. Procédé selon une ou plusieurs des revendications 1 à 9,
    caractérisé en ce qu'on utilise un rouleau tramé qui présente une gravure de petits godets au laser présentant 120 à 180, en particulier 140 à 160 lignes par centimètre, la forme des petits godets étant de préférence en nid d'abeille.
  11. Procédé selon la revendication 10,
    caractérisé en ce qu'on utilise un rouleau tramé possédant une trame qui présente un angle de trame d'entre 45 et 60°.
  12. Procédé selon une ou plusieurs des revendications 1 à 11,
    caractérisé en ce qu'on utilise un rouleau tramé possédant un diamètre de 180 à 220 cm, en particulier de 190 à 210 cm.
  13. Procédé selon une ou plusieurs des revendications 1 à 12,
    caractérisé en ce qu'on utilise un angle d'embrassement de l'intervalle d'angle d'embrassement allant de 3 à 25 ° en particulier de 6 à 18 °.
  14. Procédé selon une ou plusieurs des revendications 1 à 13,
    caractérisé en ce que le rouleau tramé est entraíné à une vitesse circonférentielle inverse de 30 à 100 %, en particulier de 80 à 100 % de la vitesse de défilement du produit imprimé.
  15. Procédé selon une ou plusieurs des revendications 1 ainsi que 3 à 14,
    caractérisé en ce que, par le choix de paramètres de procédé des revendications citées, on utilise pour une réhumidification simultanée du papier imprimé après le séchage, une émulsion possédant une teneur en eau choisie pour l'établissement d'une humidité optimale prédéterminée du papier.
  16. Dispositif pour la mise en oeuvre du procédé de dépôt de milieu protecteur, ainsi qu'en particulier pour la mise en oeuvre du procédé de réhumidification selon une ou plusieurs des revendications 1 à 15, qui présente un rouleau tramé pouvant être entraíné, muni de moyens d'entraínement pour cela en combinaison avec un dispositif de racle et un récipient recevant le milieu de couche protectrice qui est disposé de telle manière que le rouleau tramé puisse plonger par une région partielle dans le milieu de couche protectrice, ainsi qu'au moins un rouleau de guidage de la bande de papier rotatif,
       caractérisé en ce que le rouleau tramé est un rouleau tramé (12) gravé au laser et revêtu de céramique, qui peut être entraíné en sens inverse du défilement du produit imprimé, et le rouleau de guidage de la bande de papier (14 et/ou 15) est disposé de telle manière que la bande de papier imprimé (3) soit directement amenée par ce rouleau sur une région partielle (19) de la paroi latérale (17) du rouleau tramé (12) avec une région d'angle d'embrassement de mise en contact prédéterminée.
  17. Dispositif selon la revendication 16,
    caractérisé en ce que le dispositif de racle est un dispositif de racle à chambre (13) qui reçoit un milieu de couche protectrice.
  18. Dispositif selon la revendication 16 et/ou 17,
    caractcrisé en ce que, dans le cas de plusieurs rouleaux de guidage (14, 15), au moins l'un est disposé de façon à pouvoir être déplacé perpendiculairement à son axe de rotation.
  19. Dispositif selon une ou plusieurs des revendications 16 à 18,
    caractérisé en ce qu'un rouleau de guidage (14 ou 15) est le rouleau tramé (12) d'un deuxième dispositif de dépôt de milieu de couche protectrice selon l'invention de même construction.
EP19980100868 1998-01-19 1998-01-19 Méthode et dispositf pour le revêtement de produits imprimés Expired - Lifetime EP0930161B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE59808261T DE59808261D1 (de) 1998-01-19 1998-01-19 Verfahren und Vorrichtung zur Beschichtung eines Druckerzeugnisses
EP19980100868 EP0930161B1 (fr) 1998-01-19 1998-01-19 Méthode et dispositf pour le revêtement de produits imprimés

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP19980100868 EP0930161B1 (fr) 1998-01-19 1998-01-19 Méthode et dispositf pour le revêtement de produits imprimés

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EP0930161A1 EP0930161A1 (fr) 1999-07-21
EP0930161B1 true EP0930161B1 (fr) 2003-05-07

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DE (1) DE59808261D1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009002228A1 (de) * 2009-04-06 2010-10-14 Koenig & Bauer Aktiengesellschaft Lackierwerk einer Rollen-Rotations-Offsetdruckmaschine
EP3067463A1 (fr) 2015-03-10 2016-09-14 Sasol Wax GmbH Dispersion de cire à base d'eau comprenant une cire hydrocarbure et une dialkyléther pour le revêtement de produits de papier

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1290627A1 (fr) * 2000-06-12 2003-03-12 Leonard B. Pearson Surfaces de tapis de souris detachables sous forme de couches superposees
US7073762B2 (en) 2000-06-12 2006-07-11 Pearson Leonard B Detachable computer mouse pad surface in multiple sheet form
DE102007011630A1 (de) * 2007-03-09 2008-09-11 OCé PRINTING SYSTEMS GMBH Vorrichtung zum Auftragen eines Fluids auf einen Bedruckstoff
DE102008055584B3 (de) * 2008-12-23 2010-04-22 Gunther Prof. Dr.-Ing. Krieg Verfahren und Vorrichtung zum Beschichten von bedruckten Papierbahnen
DE202012102681U1 (de) * 2012-07-18 2012-08-14 Druckhaus Schütze GmbH Rollenoffsetdruckmaschine zur einseitigen Bedruckung einer Materialbahn

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2157410A (en) * 1937-04-05 1939-05-09 Marshall & Ilsley Bank Wrapper and system of producing same
US4704296A (en) * 1984-09-28 1987-11-03 Magna-Graphics Corporation Web coating method and apparatus
DE4137337A1 (de) * 1991-11-13 1993-05-19 Sengewald Karl H Gmbh Hochdruckverfahren und auftragsvorrichtung zu seiner durchfuehrung
DE4339614A1 (de) * 1993-07-21 1995-01-26 Leopold A Kern Verfahren und Vorrichtung zum Einbringen von Feuchte in Papierbahnen sowie deren Anwendung für porentiefe Dünnfilmbeschichtungen

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009002228A1 (de) * 2009-04-06 2010-10-14 Koenig & Bauer Aktiengesellschaft Lackierwerk einer Rollen-Rotations-Offsetdruckmaschine
WO2010127913A1 (fr) 2009-04-06 2010-11-11 Koenig & Bauer Aktiengesellschaft Rotative d'impression offset comportant au moins un groupe laqueur doté d'un racleur à chambre et d'un cylindre tramé
DE102009002228B4 (de) * 2009-04-06 2015-01-08 Koenig & Bauer Aktiengesellschaft Lackierwerk einer Rollen-Rotations-Offsetdruckmaschine
EP3067463A1 (fr) 2015-03-10 2016-09-14 Sasol Wax GmbH Dispersion de cire à base d'eau comprenant une cire hydrocarbure et une dialkyléther pour le revêtement de produits de papier
WO2016142068A1 (fr) * 2015-03-10 2016-09-15 Sasol Wax Gmbh Dispersion de cire aqueuse comprenant une cire à base d'hydrocarbures et un éther de dialkylique, destinée à l'enduction de produits de papier

Also Published As

Publication number Publication date
DE59808261D1 (de) 2003-06-12
EP0930161A1 (fr) 1999-07-21

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