EP1862302A2 - Presse rotative dotée d'un dispositif de séchage - Google Patents

Presse rotative dotée d'un dispositif de séchage Download PDF

Info

Publication number
EP1862302A2
EP1862302A2 EP07108687A EP07108687A EP1862302A2 EP 1862302 A2 EP1862302 A2 EP 1862302A2 EP 07108687 A EP07108687 A EP 07108687A EP 07108687 A EP07108687 A EP 07108687A EP 1862302 A2 EP1862302 A2 EP 1862302A2
Authority
EP
European Patent Office
Prior art keywords
printing
web
dryer
machine according
printing machine
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.)
Withdrawn
Application number
EP07108687A
Other languages
German (de)
English (en)
Other versions
EP1862302A3 (fr
Inventor
Hans Ulrich Siegenthaler
Herbert Janser
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.)
Wifag Maschinenfabrik AG
Original Assignee
Wifag Maschinenfabrik AG
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 Wifag Maschinenfabrik AG filed Critical Wifag Maschinenfabrik AG
Publication of EP1862302A2 publication Critical patent/EP1862302A2/fr
Publication of EP1862302A3 publication Critical patent/EP1862302A3/fr
Withdrawn legal-status Critical Current

Links

Images

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
    • B41F23/04—Devices for treating the surfaces of sheets, webs, or other articles in connection with printing by heat drying, by cooling, by applying powders

Definitions

  • the invention relates to a rotary printing press with a plurality of printing towers for printing a plurality of webs, which has at least one dryer for drying at least one of the webs.
  • it is a web-fed rotary printing press.
  • the printing machine preferably operates in offset printing, particularly preferably in wet offset.
  • the invention is preferably used in newspaper printing. Accordingly, the printing press is suitable for newspaper printing, preferably for printing large runs.
  • the invention also relates to a method for the production of newspaper copies and also a newspaper copy or a magazine as such.
  • a disadvantage of this method is that so-called "open papers” must be used, which have a sufficient porosity, roughness and oil absorption capacity for "knocking".
  • the achievable print densities, the screen fineness and gloss effects, or overall the print quality are clearly limited.
  • the heat-set process is required today. at This drying principle, the phase separation of printing ink oils and binders takes place mainly by a heat and mass transfer. The oil evaporates at 90-140 degrees into a boundary layer above the paper where it is transported away by a warm stream of air.
  • a disadvantage of this method is that the freshly printed paper web, without mechanical contact and with a residence time of about one second, is passed through a dryer for the substance exchange, which at web speeds of more than 10m / sec. correspondingly large installations result. Due to the intensive heating of the paper, the web still has to be cooled after drying, which requires additional space. Overall, this leads to the typical, usually single-lane, construction of these machines with four to five rubber rubber printing units for horizontal web run and subsequent dryer and folder installation. Because of the large space requirement after printing and the mechanical non-contact web guide through the dryer, in this type of printing press, as opposed to cold-set or newspaper printing, satellite printing units are not common.
  • the web may already be printed on one or both sides prior to application of the fresh printing ink (s), it being preferred that this "old" printing ink has already dried to the extent that the risk of blurring is reduced or completely eliminated.
  • This drying can z. B. before applying the fresh ink (s) by a known from the prior art method, such as. As heat set or cold set, or a method described herein be done.
  • the freshly printed web page between the last printing nip, ie the closest in the conveying direction before the dryer printing nip are conveyed without contact to the dryer.
  • the web can be non-contact or via a deflection, which acts on the optionally non-printed web page, are led to the dryer.
  • a printing unit Under a printing unit z. B. a printing unit to be understood that can work independently.
  • the printing unit may comprise a inking and dampening unit or alternatively a damp-waterless offset printing unit.
  • the inking unit is color of a paint container z. B. ink fountain conveyed to the nip.
  • the dampening system With the dampening system is corresponding dampening solution of a dampening solution container to a printing plate having cylinder, such. As plate cylinder promoted, in particular to produce ink-absorbing and ink-repellent points on the printing plate.
  • the printing unit can from a satellite printing unit, the z. B.
  • two, three or four pressure gaps or comprise a printing unit for example, has a pair of blanket cylinder, between which runs the web to be printed, one blanket cylinder a nip with the front and the other blanket cylinder a nip with the back of the printing railway forms.
  • two or three pairs of blanket cylinder per printing unit or printing unit can be provided. Since the printing units can preferably operate autonomously, they can be stacked on top of each other. Thus, depending on the need for printing gaps per web page another printing unit can be placed on a pre-existing printing unit like a module. For example, a printing unit, which z. B.
  • the dryers used on the web side are part of a dryer system, which preferably at least partly uses the chemical principle of radiation drying.
  • this principle enables an economical dryer-compact design, which can also be divided spatially for fine and reprint.
  • all radiation drying methods can be used, however, the UV method with ultraviolet electromagnetic radiation, the IR method with infrared electromagnetic radiation or the ESH method with electron radiation are particularly preferred. Also preferred are combinations from all three or two of the three methods mentioned, such as B. UV with IR, UV with ESH or IR with ESH. Because of the different colors available today with not only purely radiation-reactive binders and their further development, other types of radiation drying and their combination and, to a lesser extent, the combination with a hot air drying, can be used.
  • Radiation drying processes in particular the three mentioned above, can advantageously also be combined with drying with a heated or heatable gas.
  • the ESH method is another heated or unheated gas, as described below, particularly suitable.
  • the IR and the UV method can also be performed with such a heated or unheated gas and the ESH method with unheated or heated air, in particular hot air.
  • the irradiation in particular the ESH irradiation, is preferably carried out in an oxygen-poor atmosphere.
  • the drying reaction polymerization
  • the oxygen-poor atmosphere is usually achieved by flooding the reaction chamber with an inert gas or an at least inert gas, preferably nitrogen or carbon dioxide, preferably with an oxygen concentration of less than about 1000 ppm.
  • gases are also suitable for drying with a heated gas, in particular hot gas drying, but not limited thereto, since these gases also z. B. are usable at room temperature.
  • the train or trains such as. B. in perfecting printed thin substrate webs, can also be dried on both sides preferably at the same time especially by unilateral ESH irradiation by the correspondingly accelerated electron beams penetrate through the printing substrate into the ink opposite the ESH dryer.
  • FIGS. 1 and 2 each show a printing tower 3 and 7 consisting of two satellite printing units 5 and 6 for 4/0 and 0/4 color printing. After the 4 / 0- or Perfecting by the printing unit 5, the unwound from a roll changer 1 web B 1 passes a dryer 11 and after the 0 / 4- or re-printing by the printing unit 6 another dryer 11. The dryer 11 are ever same side of the web B 1 facing. Next to the printing tower 3 or 7 is another printing tower 4, which in the embodiments of Figures 1 and 2 is executed in each case the same.
  • a second web B 2 which unwinds from another reel splitter 2 , is printed in the lower satellite printing unit 5 in the 4/0 and in the upper satellite printing unit 6 in the 0/4 color print.
  • the web B 2 is an open paper with a sufficient porosity and roughness oil absorption capability, so that the web B 2 by knocking, ie in the cold set, can dry.
  • the printing tower 4 is a printing press customary for newspaper printing for 4/4 color printing.
  • the webs B 1 and B 2 are further processed in a known manner to a newspaper copy.
  • the webs B 1 and B 2 or partial webs obtained by longitudinal cutting of the webs B 1 and B 2 , wherein the sub-webs can be formed after or preferably already before printing are combined by turning operations in a turning region 15 to form one or more web strands and one or more Lekssfalz Roaden, preferably Leksfalztrichter, promoted and thereby folded, cut in a folder 16 transverse to the direction of web travel and folded and finally designed as a newspaper copies.
  • the cylinders of the printing units may in particular be 4- or 6-pages wide.
  • the web B 2 is of a paper quality known in newspaper offset printing
  • the web B 1 is a much smoother, preferably calendered, and gloss-coated paper web for high gloss printing.
  • the dryers 11 are arranged in the embodiment of Figure 1 in the printing tower 3 between the printing units 5 and 6.
  • the web B 1 thus runs on a very short path from the lower printing unit 5 through the first dryer 11, then through the four printing nips of the printing unit 6 and from there over a short path back down and through the second dryer 11.
  • the dryers 11 are with respect to the horizontal in complete or almost complete overlap to the printing units 5 and 6 arranged. Behind the second dryer 11, the web B1 leaves the printing tower 3 and runs to the turning area 15.
  • the web B 1 can, as already mentioned behind the roll changer and before the Printing unit 5 are longitudinally cut into a plurality of partial webs, for example, two or three partial webs, which side by side pass through the printing tower 3 with the integrated dryer system from the dryers 11.
  • the two dryers 11 are inclined to the vertical, so that the web B 1 or the sub-webs previously formed therefrom passes through or passes through the dryers 11 each in a straight path and according to the inclination of the dryer 11 with an inclination to the vertical.
  • the web B 1 or the sub-webs are non-contactly dried by heat or preferably by a combined radiation and heat or even more preferably by pure radiation.
  • the first dryer 11 is preceded by a guide element, for example, a guide roller and a further guide element, for example, a guide roller downstream.
  • the guide elements are arranged on the non-printed in the printing unit 5 side of the web B 1 . Between the upstream and the downstream guide element no further, the web-contacting elements are arranged.
  • the second dryer 11, such a guide element is only downstream.
  • the web B 1 or the sub-webs formed therefrom are accordingly guided by the last printing nip of the printing unit 6 in a straight path without contact through the second dryer 11 and deflected via the downstream guide element.
  • the downstream guide element is arranged on the side of the web B 1 , which has already been dried in the first dryer 11.
  • the printing machine of Figure 2 differs from the printing machine of Figure 1 only by the arrangement of the dryer 11 and 12 left and right of the printing tower 7 and by the arrangement of otherwise identical dryer 11 and 12 on different sides of the web.
  • the dryers 11 and 12 are arranged directly next to the printing tower and preferably supported on the printing tower frame.
  • the printing tower 7 also forms in this sense a printing tower with integrated dryers.
  • the dryers 11 and 12 are aligned exactly vertically. Since the dryers 11 and 12 are moved in the horizontal direction from the overlap with the printing units 5 and 6, the printing tower 7 is lower than the printing tower 3, but on the other hand, wider and requires a longer path.
  • the printing tower 3 of the exemplary embodiment of FIG. 1 is optimal.
  • Figure 3 shows a printing tower 10 in the so-called four-tower construction, in which the web B 1 in vertical web guide, before drying the left and right web page, two rubber rubber printing units 9 for each 2/2 pressure passes.
  • the web is deflected between the two printing units via at least one guide roller. Since this would lead to the touch of the freshly printed web page, the required web stabilization is achieved by a slight horizontal offset of the upper to the lower printing unit 9 in a modification.
  • Figure 4 shows a correspondingly modified printing tower 17, in which the two rubber-rubber printing units 9, or more generally blanket blanket units 9, to each other have a horizontal offset, preferably at least half a cylinder diameter and preferably at most twice the cylinder diameter of the blanket cylinder is, if one measures the offset as a horizontal distance between the two next adjacent pressure columns of the printing units 9.
  • the blanket cylinders, which form the next adjacent pressure column of the printing units 9, also serve as the guide means for the web B 1 or the part webs formed therefrom before printing.
  • the two dryers 13 and 14 are combined into a sandwich arrangement and arranged opposite one another acting on each one of the two web sides.
  • the web B 1 or the sub-webs previously formed therefrom is or are conveyed without contact from the last printing nip of the printing tower 17 to a downstream guiding element, for example a guide roll, to the drying system 13, 14.
  • a downstream guiding element for example a guide roll
  • One of the two blanket cylinders, which form the last printing nip of the upper printing unit 9, and the relevant guide element form the guide for the web B 1 or the partial webs on the path section containing the dryer system 13, 14.
  • the downstream of the dryer system 13, 14 guide element is arranged with a corresponding horizontal offset to the last printing nip.
  • the web B 1 or the partial webs already formed therefrom is or will therefore be conveyed with an inclination to the vertical by the dryer system 13, 14 consisting of the dryers 13 and 14.
  • the printing tower 17 allowed a particularly simple, short track and the compact sandwich arrangement for the two dryers 13 and 14th
  • FIG. 5 shows, in a schematic representation, a booklet of a newspaper copy, as can be produced, for example, with a printing press according to the invention.
  • the booklet comprises a plurality of longitudinally folded sheets 20, 21, 22 and 23. At least one of the sheets was printed in one of the dryer-integrated printing towers and dried. At least one other of the sheets was printed in the at least one other printing tower and dried by beating. If only one of the sheets 20 to 23 in the printing tower with integrated dryer was printed and dried, it is preferably either the innermost sheet 23 or the outermost sheet 20. If two of the sheets 20 to 23 printed in the printing tower with integrated dryer and are dried, it is preferably the outermost sheet 20 and the innermost sheet 23.
  • the at least one actively dried sheet such as the sheet 23, is a high-gloss sheet and can be printed in particular in panoramic format, d. H. be provided over the entire sheet width with a printed image.
  • the one or more in the cold-set method, d. H. by beating dried sheets or sheets is or are preferably (a) double side (s), d. H. he or she wears a printed image on both sides of the fold, as usual in newspaper printing.
  • a booklet produced entirely in higher quality or several such booklets may be part of a newspaper copy produced according to the invention.
  • the printing press according to the invention can also drive a newspaper production completely in the cold-set process and a magazine production completely with active drying, either in parallel or in succession. For parallel production, only the stations downstream of the printing, such as the turning device and the folding device, must be present accordingly.
EP07108687A 2006-05-24 2007-05-22 Presse rotative dotée d'un dispositif de séchage Withdrawn EP1862302A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200610024898 DE102006024898A1 (de) 2006-05-24 2006-05-24 Rotationsdruckmaschine mit Trockner

Publications (2)

Publication Number Publication Date
EP1862302A2 true EP1862302A2 (fr) 2007-12-05
EP1862302A3 EP1862302A3 (fr) 2008-06-18

Family

ID=38605373

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07108687A Withdrawn EP1862302A3 (fr) 2006-05-24 2007-05-22 Presse rotative dotée d'un dispositif de séchage

Country Status (2)

Country Link
EP (1) EP1862302A3 (fr)
DE (1) DE102006024898A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007048282A1 (de) * 2007-10-08 2009-04-09 Wifag Maschinenfabrik Ag Rotationsdruckmaschine mit Elektronenstrahltrockner
CN113798134A (zh) * 2020-06-17 2021-12-17 四川智研科技有限公司 Eb双面辐照系统

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008042148B4 (de) 2008-09-17 2010-08-05 Koenig & Bauer Aktiengesellschaft Druckmaschine und ein Verfahren zum Betreiben einer Druckmaschine
DE102009001000A1 (de) * 2009-02-19 2010-08-26 Manroland Ag Druckturm einer Rollendruckmaschine
DE102009029572B4 (de) * 2009-09-18 2022-09-08 Manroland Goss Web Systems Gmbh Rollenrotationsdruckanlage für mehrfachbreite Bahnen mit einfachbreitem Falzapparat

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2462032A (en) 1945-01-01 1949-02-15 Tribune Company Multicolor printing press
DE202005010058U1 (de) 2005-01-20 2005-11-10 Man Roland Druckmaschinen Ag Rollenrotationsdruckmaschine

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2244593A (en) * 1940-02-03 1941-06-03 Hoe & Co R Multicolor printing machine
DE3702218A1 (de) * 1987-01-26 1987-10-22 Klaus Balke Umweltfreundliches trockenverfahren fuer rollenoffsetdruck
DE10207184A1 (de) * 2002-02-21 2003-09-04 Irs Lab Ag Pfaeffikon Offsetdruckmaschine
DE102005053652A1 (de) * 2005-11-10 2007-05-31 Man Roland Druckmaschinen Ag Druckmaschine und Verfahren zum Herstellen von Zeitungen

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2462032A (en) 1945-01-01 1949-02-15 Tribune Company Multicolor printing press
DE202005010058U1 (de) 2005-01-20 2005-11-10 Man Roland Druckmaschinen Ag Rollenrotationsdruckmaschine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007048282A1 (de) * 2007-10-08 2009-04-09 Wifag Maschinenfabrik Ag Rotationsdruckmaschine mit Elektronenstrahltrockner
CN113798134A (zh) * 2020-06-17 2021-12-17 四川智研科技有限公司 Eb双面辐照系统

Also Published As

Publication number Publication date
DE102006024898A1 (de) 2007-11-29
EP1862302A3 (fr) 2008-06-18

Similar Documents

Publication Publication Date Title
EP1742796B1 (fr) Presses rotatives a imprimer
EP1862305B1 (fr) Presse rotative à rouleaux
EP1915257B1 (fr) Installation de machines d'impression
EP2352643B1 (fr) Presse a bobines a trajet vertical d'un marche d'une bande, sechage et mise en tension en sens travers
EP1792729B1 (fr) Machine d'impression et méthode de fabrication de journaux
DE102009039278A1 (de) Formatvariable Rollendruckmaschine
EP1827827B1 (fr) Systeme d'imprimeuses
EP1960198A1 (fr) Systeme d'imprimeuses
EP1862302A2 (fr) Presse rotative dotée d'un dispositif de séchage
DE102007032831A1 (de) Druckmaschine, Druckmaschinenanlage sowie Verfahren zur Verwendung der Druckmaschinenanlage bzw. der Druckmaschine
EP1871602B1 (fr) Machine d'impression
EP2047992A2 (fr) Presse rotative dotée d'un dispositif de séchage à faisceau d'electrons
WO2009130078A1 (fr) Machine d'impression de journaux avec dispositif d'impression additionnelle et procédé d'impression variable dans la production des journaux
EP1960199A1 (fr) Installation de machines d'imprimerie
WO2006000527A1 (fr) Presse rotative a imprimer a barre de retournement
DE102009029572A1 (de) Rollenrotationsdruckanlage für mehrfachbreite Bahnen mit einfachbreitem Falzapparat
DE102010003363B4 (de) Rollenoffsetdruckmaschine und Verfahren zur Herstellung eines Produktes
WO2007020285A1 (fr) Installation de machines d'impression
DE102008001722B4 (de) Produkt einer Rollenrotationsdruckmaschine sowie Verfahren zu dessen Herstellung
EP2344335B1 (fr) Imprimeuse et procédé avec unité de retournement
EP2014595B1 (fr) Presse, installation de presse et procédé de fonctionnement d'une presse ou d'une installation de presse
CH704936B1 (de) Verfahren zur Herstellung eines Druckproduktes.
EP2014465A2 (fr) Installation de presse rotative

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA HR MK YU

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA HR MK RS

17P Request for examination filed

Effective date: 20081021

17Q First examination report despatched

Effective date: 20081126

AKX Designation fees paid

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20131130