EP1285754A2 - Dispositif pour la réhumidification d'une bande - Google Patents

Dispositif pour la réhumidification d'une bande Download PDF

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Publication number
EP1285754A2
EP1285754A2 EP02015564A EP02015564A EP1285754A2 EP 1285754 A2 EP1285754 A2 EP 1285754A2 EP 02015564 A EP02015564 A EP 02015564A EP 02015564 A EP02015564 A EP 02015564A EP 1285754 A2 EP1285754 A2 EP 1285754A2
Authority
EP
European Patent Office
Prior art keywords
web
agent
roller
rewetting
cooling
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Withdrawn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
EP02015564A
Other languages
German (de)
English (en)
Other versions
EP1285754A3 (fr
Inventor
Clemens Johannes Maria De Vroome
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.)
Contiweb BV
Original Assignee
Heidelberger Druckmaschinen 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 Heidelberger Druckmaschinen AG filed Critical Heidelberger Druckmaschinen AG
Publication of EP1285754A2 publication Critical patent/EP1285754A2/fr
Publication of EP1285754A3 publication Critical patent/EP1285754A3/fr
Withdrawn legal-status Critical Current

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    • 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
    • B41F23/02—Devices for treating the surfaces of sheets, webs, or other articles in connection with printing by dampening

Definitions

  • the present invention relates to a device for rewetting a Goods web, in particular a paper web in a web-fed rotary printing press, according to the preamble of claim 1.
  • the web When printing on a web, for example a paper web, the web is unwound from a supply roll, passed through one or more printing units, the one Apply one or more colors to the web on one or both sides, and then for drying the material web by a dryer, for example a hot air dryer guided.
  • the web is heated above a temperature level in the hot air dryer, in which the solvent contained in the printing ink used evaporates and can be discharged through an exhaust device of the dryer.
  • a certain moisture content is also withdrawn from the web, which is negative affects the quality of the printed product to be produced.
  • the web will then a cooling device, for example one or more cooling rolls Comprehensive cooling roll stand supplied, the web by heat transfer cooled on the cooling rollers and thereby the printing ink is cured.
  • DE 44 05 332 A1 describes a rewetting system, in particular for Web offset machines with heat set drying, known, in which a web coming from a furnace is fed to a plurality of cooling rollers.
  • a web coming from a furnace is fed to a plurality of cooling rollers.
  • To solve the Problem of building a solvent-color mixture on the cooling rollers provided the web first a number of air knives, then one Remoistening chamber with a number of water atomizing nozzles and then an additional spray nozzle system.
  • the air knife with across the web width Distributed compressed air nozzles scrape the solvent off the web, which is then channeled can be suctioned off and fed back into the dryer again.
  • the rewetting chamber is the one created by the water atomizing nozzles Droplets are partially evaporated by the warmth of the hot web, so that a moist mist in the chamber forms from the dried web is recorded.
  • the additional spray nozzle system is immediately before the first one Cooling roller and the second cooling roller attached. The positioning of the Spray nozzle system immediately before the web enters the chill rolls causes the sprayed-on dampening solution is forcibly wrapped around the web Cooling rollers is incorporated.
  • the combination of three devices for applying a dampening solution to the web while preventing the build-up of a solvent-color mixture on the Chill rolls thus have a complex structure, with the problem that the Solvent vapors swept along by the web on the many components of the three mentioned devices, especially on the inside of the chamber walls condense and return to the running web from there.
  • Another or alternative object of the present invention is to provide a To create device that pollutes little or substantially not.
  • Another or alternative object of the present invention is to provide a To create a process in which contamination of an application roller is reduced or substantially prevented.
  • a device for rewetting a web, in particular a paper web in a web-fed rotary printing press, the device comprising means for applying a Remoistening agent on the printed and at least partially dried Has web, is characterized in that means for heating the Remoisteners are provided.
  • means for heating the rewetting agent used, whereby the temperature of the rewetting agent can be increased in this way can that condensed solvent, oil vapors or the like, which in the Rewetting agents have come through evaporation of the Remoisteners can be separated.
  • This is advantageous avoided contamination of the rewetting agent with the condensed Solvent or oil vapors through the means for applying the Re-moistening agent get back on the web and thereby the quality the products to be produced, e.g. B. the printed products, is reduced.
  • the one from the Remoistener driven impurities can preferably be from aspirated and z. B. fed to and from a dryer be burned with energy recovery and pollutant reduction.
  • the device at least one application roller, in particular an application roller with a metallic and / or polished surface for applying the rewetting agent to the Goods web and / or at least one storage container for receiving the Remoistening agent, in particular a tub, comprises.
  • an application roller which the Re-moistening or scooping out of a tub and onto the web emits the application of the in a simple manner and with few components Remoistener reached.
  • the tub with a lid, which has an opening for Reaching through the application roller and which continues with a Suction device is connected, which is the evaporated solvent or Oil vapors, which are in the enclosed space of the lid Vacuum the tub.
  • the application roller can also expediently be equipped with a counter-pressure roller interact, which is arranged on the other side of the web.
  • the means for applying the Remoistening agent e.g. B. the applicator roller, at the same time as a means of heating of the rewetting agent.
  • the means for Heating the rewetting agent preferably an electrically operated one Heating coil and / or a heat exchanger, e.g. B. one of a heated fluid flow through heat exchanger.
  • a device according to the invention a dryer and a cooling device, in particular between a hot air dryer and a cooling roll stand, or directly in front of the cooling device, in particular directly in front a first cooling roller of the cooling device, or within the cooling device, to be arranged in particular directly in front of the first cooling roller of the cooling device.
  • the application roller can preferably be arranged directly in front of the first cooling roller Apply the rewetting agent to the side of the web with which the Material web wraps around the first cooling roller. This is advantageous ensures that condensation of vapors on the first chill roll is prevented is and at the same time the desired rewetting of the web is achieved.
  • the further device can, for. B. arranged directly opposite a first device or be arranged between the first and a second cooling roller.
  • the first cooling roller serves as an application roller.
  • the cooling roller can do that Remoistening agent directly or via a scoop roller from a storage container, e.g. B. a tub.
  • the rewetting agent is water and / or silicone contains, in particular a separate quantity control of the water content and / or Silicone portion can be provided.
  • the separate volume control enables the operator to operate the water and adjust the silicone content at any time in such a way that optimal wetting of the agent for applying the rewetting agent, for example an application roller, and optimal rewetting of the web is achieved.
  • the separate Volume control can be effected by the user by hand, but it is also conceivable that an automatic control device the separate quantity control takes over.
  • a further embodiment of the invention can provide an external heating device, which comprises a storage container and a heating element and which via lines and at least one pump is connected to a tub. So it is more advantageous Way also possible, the space-taking heating device, in particular also their Wiring, spatially distant from the application roller or z. B. also from one Arrange chill roll stand and thereby improved access for an operator to enable the machine.
  • a web-fed rotary printing press in particular one Roll rotary offset printing machine can be provided, which is characterized as above characterized described device according to the invention.
  • the web 1 leaves the dryer through an opening 12 and also enters the chill roll stand 4 through an opening 14 a, wherein it can also be provided that the two openings 12 and 14 one and represent the same opening, which in a partition between the dryer 2 and the downstream cooling roll stand is provided.
  • a device 16 according to the invention for rewetting the web 1 which comprises an application roller 18, a trough 20 and a heating element 22.
  • rewetting agent 24 which, for. B. can be composed of water and up to 30% silicone, and which is picked up by the surface of the application roller 18 and released to one side of the web 1.
  • the heating element 22, which, for. B. can be operated electrically, serves to heat the rewetting agent 24 in the tub 20, so that residues of condensed solvent, oil vapors or the like, which enter the rewetting agent via the application roller 18, can be removed from the rewetting agent 24 by increasing the temperature and evaporation ,
  • FIG. 2 also shows a device for rewetting the web 1, the device in addition to the applicator roller 18, the tub 20 and the heating element 22 also has a cover 26 through which the application roller 18 at least partially protrudes and is in contact with the rewetting agent 24.
  • the Lid 26, which can also be an integral part of the tub 20, is above a Line 28 with a pump element 30 in connection, which continues via a Line 32 communicates with a container 34.
  • the one from the Remoistener 24 evaporated solvent and oil residues are in the captured by the lid 26 and the tub 20 enclosed space and over the Lines 28 and 32 are brought into a container 34 by means of the pump element 30, where they z. B. can be subjected to a recovery process by condensation.
  • the pump element 30 can also by a pump element located in the dryer 2 can be replaced.
  • FIG. 3 further shows an inventive device for rewetting 16, in which a first cooling roller 6 of a cooling roller stand serves as an application roller.
  • the Remoistening agent 24 is scooped out of the tub 20 via a scoop roller 36 and transferred from the scoop roller 36 to the cooling roller 6 operating as an application roller, from where the rewetting agent film 38 reaches one side of the web 1.
  • a device 16 according to FIG. 3 can, however, also be configured such that the Re-moistened 24 directly from the cooling roller 6 from the tub 20 and is applied to one side of the web 1.
  • FIG. 4 shows a device 16 for rewetting a web 1, at which an applicator roller 18 has a hollow interior 40, which of a Heating medium, e.g. B. is flowed through a heated fluid.
  • the fluid e.g. B. water can are heated by a heating device 22 in a storage container 42 and over Lines 44 and 46 with the aid of a pump element 48 the hollow interior 40 of the Applicator roller 18 are supplied. Due to heat transfer, the jacket becomes Applicator roller 18 is heated and in turn due to heat transfer occurs Temperature increase of the rewetting agent 24 in the tub 20.
  • FIG. 5 shows a device 16 for rewetting a web 1, which compared to the device 16 shown in Figure 1, a device for separate Volume control of the water and / or silicone portion of the rewetting agent 24 having.
  • a reservoir 50 for water and a reservoir 52 for Silicone provided, the water via lines 54 and 56 using a Pump element 58 and the silicone via lines 60 and 62 using a Pump element 64 from the respective reservoir 50 and 52 to the tub 20 is promoted.
  • a control device 66 which with the pump elements 58 and 64 in Connection is established and which via a measuring sensor, not shown Monitored composition of the water-silicone mixture in the tub 20, controls the Supply of water and silicone through the pumping capacity of the respective pumps 58 and 64.
  • the control device 66 can be actuated by the operator or automatically the composition of the water-silicone mixture of the rewetting agent 24 z. B. regulate to a predetermined value.
  • Fig. 6 shows a device 16 for remoistening the web 1, comparable to the 2, in this embodiment of the invention however, instead of the heating element 22 in the tub 20 (see FIG. 2) an external one Heating device 122 is provided.
  • the heater 122 includes one Storage container 124, in which rewetting agent 24 is stored and from a heating element 22 can be brought to a desired temperature. about Lines 126 and 128 and by means of a pump 130 can be tempered Remoistening agent from heater 122 to tub 20 as needed be promoted.
  • a fill level sensor (not shown) can be provided which detects and switches on the fill level of the rewetting agent 24 in the tub 20 a control device, also not shown, reports which via a control the pump 130 controls the refilling of the rewetting agent 24 into the tub 20 or also regulates.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)
  • Rotary Presses (AREA)
EP02015564A 2001-08-07 2002-07-12 Dispositif pour la réhumidification d'une bande Withdrawn EP1285754A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10138743 2001-08-07
DE10138743 2001-08-07

Publications (2)

Publication Number Publication Date
EP1285754A2 true EP1285754A2 (fr) 2003-02-26
EP1285754A3 EP1285754A3 (fr) 2004-01-07

Family

ID=7694663

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02015564A Withdrawn EP1285754A3 (fr) 2001-08-07 2002-07-12 Dispositif pour la réhumidification d'une bande

Country Status (6)

Country Link
US (1) US6923121B2 (fr)
EP (1) EP1285754A3 (fr)
JP (1) JP2003053933A (fr)
CN (1) CN1404992A (fr)
DE (1) DE10231598A1 (fr)
HK (1) HK1052159A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008101516A1 (fr) * 2007-02-22 2008-08-28 Goss Contiweb B.V. Dispositif pour humidifier une bande de papier, presse à imprimer rotative et procédé d'humidification correspondants

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7934049B2 (en) * 2005-09-14 2011-04-26 Sandisk Corporation Methods used in a secure yet flexible system architecture for secure devices with flash mass storage memory
WO2008118284A1 (fr) 2007-03-23 2008-10-02 Megtec Systems, Inc. Applicateur de revêtement de bande avec refroidissement et récupération de matériau
JP2008273032A (ja) * 2007-04-27 2008-11-13 Mitsubishi Heavy Ind Ltd オフセット印刷機による印刷方法及びオフセット印刷機
DE102009033046A1 (de) * 2008-07-25 2010-01-28 Heidelberger Druckmaschinen Ag System zum Beschichteen eines Bedruckstoffes mit einem Fluid
JP5750874B2 (ja) * 2010-11-30 2015-07-22 セイコーエプソン株式会社 画像記録装置、及び、画像記録方法
CN102363390B (zh) * 2011-05-21 2014-12-10 嘉兴市豪能包装有限公司 高湿强铜板纸标签的润湿方法
DE102015101858A1 (de) 2015-02-10 2016-10-20 Océ Printing Systems GmbH & Co. KG Verfahren zur Steuerung einer Substrattemperatur sowie Druckanordnung zum Bedrucken eines Substrats
JP6668772B2 (ja) * 2015-08-07 2020-03-18 富士ゼロックス株式会社 吐出装置、加湿装置
CN106808795A (zh) * 2017-03-29 2017-06-09 长葛市大阳纸业有限公司 具有甜味光油涂覆装置的接装纸印刷机
US10792935B2 (en) * 2017-07-31 2020-10-06 Hewlett-Packard Development Company, L.P. Top liner formation
JP7061936B2 (ja) * 2018-06-28 2022-05-02 株式会社Ｓｃｒｅｅｎホールディングス インクジェット印刷システム
DE102022100057A1 (de) 2022-01-03 2023-07-06 Frank Dörmer Verfahren und vorrichtung zur herstellung eines flächigen polstermaterials aus papier, sowie polstermaterial

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4637341A (en) 1985-08-28 1987-01-20 Rayco Graphic Manufacturing, Inc. Apparatus for applying silicone emulsion to a paper web
DE4405332A1 (de) 1994-02-19 1995-08-31 Bse Printtechnologie Rückbefeuchtungssystem, insbesondere für Rollenoffsetmaschinen mit Heatsettrocknung

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1250894A (en) 1917-09-12 1917-12-18 Samuel Edward Kately Paper-moistening device.
US3198199A (en) 1964-02-10 1965-08-03 Herman J Schultz Apparatus for dampening a printed web
DE8433273U1 (de) 1984-11-14 1985-02-14 Splettsen Technische Anlagen GmbH, 6380 Bad Homburg Dampfluftbefeuchterrohr
DE3740045A1 (de) 1987-10-23 1989-05-03 Kotterer Grafotec Verfahren und vorrichtung zum auftragen wenigstens eines leimstreifens auf mindestens eine materialbahn
DE3740046A1 (de) 1987-10-23 1989-05-03 Kotterer Grafotec Verfahren und vorrichtung zum falzen einer papierbahn
EP0463213A1 (fr) * 1990-06-27 1992-01-02 Jean Hiedemann GmbH & Co.KG Procédé de traitement en surface de bande de papier en mouvement et dispositif pour la mise en oeuvre du procédé
ATE168324T1 (de) * 1993-04-30 1998-08-15 Heidelberger Druckmasch Ag Bahnkühlungsvorrichtung
DE4431252B4 (de) * 1994-09-02 2004-01-29 V.I.B. Systems Gmbh Verfahren und Vorrichtung zum Bedrucken einer Materialbahn
AU4106696A (en) * 1994-11-09 1996-06-06 R.R. Street & Co. Inc. Method and system for rejuvenating pressurized fluid solvents used in cleaning substrates
US5676754A (en) * 1995-03-20 1997-10-14 Advance Systems, Inc. Apparatus for preventing ink resoftening on a printed web as the web travels over a chill roll
US5797318A (en) * 1996-09-17 1998-08-25 Dahlgren Usa, Inc. Liquid applicator for cut sheets
DE19901802B4 (de) * 1999-01-19 2004-02-12 Baldwin Germany Gmbh Vorrichtung zur Rückbefeuchtung einer getrockneten Papierbahn
DE19918130A1 (de) * 1999-04-21 2000-10-26 Heidelberger Druckmasch Ag Kühl- und Befeuchtungseinheit für Rotationsdruckmaschinen
US6376024B1 (en) * 1999-05-28 2002-04-23 Hurletron, Incorporated Web processing with electrostatic cooling

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4637341A (en) 1985-08-28 1987-01-20 Rayco Graphic Manufacturing, Inc. Apparatus for applying silicone emulsion to a paper web
DE4405332A1 (de) 1994-02-19 1995-08-31 Bse Printtechnologie Rückbefeuchtungssystem, insbesondere für Rollenoffsetmaschinen mit Heatsettrocknung

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008101516A1 (fr) * 2007-02-22 2008-08-28 Goss Contiweb B.V. Dispositif pour humidifier une bande de papier, presse à imprimer rotative et procédé d'humidification correspondants
US8313615B2 (en) 2007-02-22 2012-11-20 Goss Contweb B.V. Device for moistening a paper web, corresponding rotary printing press and moistening method

Also Published As

Publication number Publication date
US20030029343A1 (en) 2003-02-13
US6923121B2 (en) 2005-08-02
CN1404992A (zh) 2003-03-26
EP1285754A3 (fr) 2004-01-07
HK1052159A1 (zh) 2003-09-05
JP2003053933A (ja) 2003-02-26
DE10231598A1 (de) 2003-02-20

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