EP1097045A1 - Procede et dispositif pour le conditionnement d'une feuille continue de papier - Google Patents

Procede et dispositif pour le conditionnement d'une feuille continue de papier

Info

Publication number
EP1097045A1
EP1097045A1 EP00931103A EP00931103A EP1097045A1 EP 1097045 A1 EP1097045 A1 EP 1097045A1 EP 00931103 A EP00931103 A EP 00931103A EP 00931103 A EP00931103 A EP 00931103A EP 1097045 A1 EP1097045 A1 EP 1097045A1
Authority
EP
European Patent Office
Prior art keywords
silicone
paper web
conditioning agent
acted
mixture
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.)
Ceased
Application number
EP00931103A
Other languages
German (de)
English (en)
Inventor
Rolf Enders
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.)
Baldwin Germany GmbH
Original Assignee
Baldwin Grafotec GmbH
Baldwin Germany 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 Baldwin Grafotec GmbH, Baldwin Germany GmbH filed Critical Baldwin Grafotec GmbH
Publication of EP1097045A1 publication Critical patent/EP1097045A1/fr
Ceased legal-status Critical Current

Links

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

Definitions

  • the invention relates to a method for conditioning a freshly printed, dried paper web, which is cooled after drying and, at the latest, preferably before the last cooling, is acted upon on both sides with a conditioning agent which brings about rewetting, and according to a further idea of the invention to a device for carrying out this method with spray devices provided above and below the transport plane of the paper web, arranged in a region delimited by a cooling device arranged downstream of a dryer, preferably arranged upstream of the cooling device and which can be acted upon with a conditioning agent which brings about rewetting.
  • rewetting It is known to feed the moisture lost during drying to a paper web dried in a dryer by so-called rewetting.
  • water is applied to the dried paper web before or during passage through a chill roll stand.
  • silicone plants have been used for this
  • Cooling roll stands are subordinate. Accordingly, two separate work steps and, accordingly, two separate application devices, which are spaced apart from one another by the cooling roller stand, have been required accordingly for the application of backwetting liquid and silicone to the web. This is cumbersome and therefore undesirable.
  • At least the conditioning agent which can be supplied to a printed side of the paper web consists of a mixture of backwetting liquid and silicone.
  • the device-based solution consists in the fact that at least those printed on the device of the generic type A spraying liquid and silicone mixture can be applied to each side of the paper web associated spray device.
  • the measures according to the invention ensure that the application of silicone takes place together with the rewetting. A separate silicone plant is therefore not necessary, which means that the associated structural effort and space are eliminated. This also has an advantageous effect on the accessibility of the web in the area between the chill roll stand and the downstream folder, where silicone plants were previously located.
  • Another, very special advantage of the measures according to the invention can be seen in the fact that the silicone, together with the backwetting liquid, can penetrate deeply into the paper web and practically enforce it. In contrast to the previous silicone treatment, this is therefore not only treated with silicone on the surface, but also in deeper cross-sectional areas. The advantageous consequence of this is that not only is the surface roughness reduced, but that the paper web as a whole is made extremely flexible and easily deformable.
  • Another expedient measure can consist in the fact that the mixture forming the conditioning agent contains 0.1% - 2% silicone and the rest water. This allows the silicone consumption to be kept within limits. Nevertheless, excellent results can be expected in the above sense.
  • a quantity control device can be assigned to the spray devices be acted upon by means of a pump cooperating on the suction side with a container provided with a level switch, the container being connected to a water supply line which contains a shut-off valve which can be actuated by means of the level switch and a quantity measuring device, and can be acted upon by silicone by means of an admixing device, which is in Dependent on the output of the quantity measuring device actuatable metering pump, which interacts on the suction side with a silicone container.
  • these measures result in an exact dosing of the silicone portion.
  • the field of application of the present invention is usually rotary rotary printing presses, which are followed by a dryer and a cooling roller stand following this. Arrangements of this type are known per se and therefore require no further explanation.
  • the paper web 1 indicated in the drawing which is said to have been printed on both sides in a non-illustrated rotary rotary printing press, passes through a dryer 2 following the last printing unit of the non-illustrated rotary rotary printing press and then a cooling roller stand 3.
  • the dryer 2 has three in the running direction Zones arranged one behind the other in the paper web 1, namely a heating zone 4, a temperature-maintaining zone 5 and a temperature-lowering zone 6.
  • a compartment of the dryer 2 is assigned to each zone. Partition walls are provided between the successive compartments, each of which has a through slot for the paper web 1.
  • the paper web 1 is subjected to hot air, as indicated by nozzles 7.
  • the compartment assigned to the temperature-lowering zone 6 contains a conditioning device designated as a whole by 8, which serves to act on the freshly printed and dried paper web 1, which has lost a lot of moisture during drying in the heating zone 4 and the temperature-maintaining zone 5, with a back-moistening liquid and at the same time with silicone .
  • Water is used for rewetting, by which the water is replaced which the paper web 1 lost during drying.
  • the unprinted side of a paper web that is only printed on one side is expediently not only loaded with liquid for backwetting, but also with silicone.
  • the paper web 1 is to be printed on both sides, so that silicone treatment on both sides is provided in any case.
  • the silicone is added to the water used as the backwetting liquid.
  • the silicone concentration is between 0.1% and 2%, depending on the type of paper, web speed, etc.
  • the rest is water.
  • the conditioning agent applied to the paper web 1 is partially evaporated.
  • the heat of vaporization is withdrawn from the paper web 1, whereby it is cooled in the desired manner.
  • This evaporating part of the conditioning agent is used in the Of course, dimensioning of the quantity supplied is taken into account.
  • Conditioning agent is expediently sprayed onto the paper web 1 without contact. In the example shown, this still takes place within the dryer 2 in the temperature reduction zone 6 containing the outlet of the dryer 2. However, it would also be conceivable to provide the conditioning device 8 outside the dryer 2, for example in the region between the dryer 2 and the cooling roll stand 3 or in the cooling roll stand 3. Since the conditioning device 8 u.a. a rewetting is carried out, a subordinate arrangement of the cooling roll stand separates the
  • the above-mentioned conditioning device 8 contains nozzle bars 9 arranged above and below the transport plane of the paper web 1, which are continuous over the entire width.
  • nozzle bars 9 arranged above and below the transport plane of the paper web 1, which are continuous over the entire width.
  • a nozzle bar is provided in each case.
  • one of several nozzle bars could also be used
  • Spray device formed may be provided.
  • the conditioning agent supplied to the nozzle bar 9 is blown out by compressed air, so that there are sharp spray jets 10, which are also able to break up the laminar air layer adhering to the paper web 1, which is loaded with evaporating solvent, etc.
  • the nozzle bars 9 are accordingly with conditioning liquid and Compressed air, as indicated by the supply lines 11, 12.
  • the supply line 11 is assigned to the conditioning liquid and the supply line 12 to the compressed air.
  • each of the nozzle sheets 9 is assigned a spray chamber 13 which is roof-shaped or V-shaped in cross section. Drip traps can be attached to the lower ends of the walls of the upper spray chamber 13 which are inclined in a roof shape.
  • the spray chambers 13 are each arranged in an associated suction chamber 14, which is suctioned off by means of a blower 15. This prevents air laden with liquid from escaping from the condenser device 8 and possibly leading to condensation outside the dryer 2.
  • the blowers 15 can blow out into the dryer 2, as a result of which the fresh air drawn in from the outside is mixed with air which has already been preheated, which reduces the energy requirement.
  • a cooling unit 16 is arranged upstream of each blower 15. This acts as a condenser to separate the liquid in the air, which primarily contains water, but can also contain silicone and solvents.
  • a supply control device in the form of a valve 17, 18 is assigned to the supply lines 11 and 12, respectively.
  • the valves 17, 18 are controlled by means of a control or regulating device 19, as by not closer designated signal lines is indicated.
  • the control device 19 determines suitable control pulses for the valves 17, 18 from various actual values, for example the temperature and / or humidity of the paper web 1 before and after the configuration device 8. The actual values are measured by sensors (not shown in more detail) and via Signal lines supplied to the control device 19, which is provided with suitable actual value inputs 20.
  • the supply lines 11, 12 are here forked after the respectively assigned valve 17, 18 into two parallel branches, each leading to an associated nozzle bar 9. However, it would also be conceivable to assign a corresponding supply device to each nozzle bar.
  • the supply line 12 assigned to the compressed air is connected upstream of the valve 18 to a compressed air source 21, for example an existing compressed air network.
  • the supply line 11 assigned to the conditioning means is connected upstream of the assigned valve 17 to a supply device 22 provided with a water inlet and a silicone mixing device.
  • this contains a pump 23 which is located on the suction side of a container 24 which contains the required conditioning liquid in the form of the mixture of water and silicone mentioned with a silicone concentration of 0.1% to 2%.
  • the pump 23 is parallel to the downstream one by means of the control device 19 Valve 17 can be controlled, as indicated by parallel signal lines.
  • the container 24 is connected via a water line 25 to a water source, for example an existing water line network.
  • a water source for example an existing water line network.
  • a water meter 26 which measures the flow rate.
  • the container 24 is provided with a level switch 28 through which the shut-off valve
  • the admixing device provided for the admixture of silicone contains a metering pump 29 which is on the suction side against a silicone container 30 and whose outlet opens into the container 24.
  • the metering pump 29 can be controlled by means of the water meter 26 in such a way that the desired mixing ratio of water and silicone is achieved. In order to avoid segregation in the container 24, this can be assigned a rolling or stirring device.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Paper (AREA)
  • Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)

Abstract

L'invention concerne un procédé consistant à ajouter 0,1 % à 2 % de silicium à un liquide de réhumectage utilisé pour le réhumectage d'une feuille continue de papier (1) séchée, fraîchement imprimée. De cette façon le réhumectage et le traitement au silicium de la feuille de papier s'effectuent en une seule étape. Pour la mise en oeuvre d'un tel conditionnement d'une feuille continue de papier (1), on utilise un dispositif de conditionnement (8) équipé de dispositifs de pulvérisation (9), au moins chaque dispositif de pulvérisation associé à chacune des faces imprimées de la feuille (1) étant alimenté par un mélange de réhumectage et de silicium.
EP00931103A 1999-05-03 2000-05-03 Procede et dispositif pour le conditionnement d'une feuille continue de papier Ceased EP1097045A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE1999120091 DE19920091A1 (de) 1999-05-03 1999-05-03 Verfahren und Vorrichtung zur Konditionierung einer Papierbahn
DE19920091 1999-05-03
PCT/EP2000/003952 WO2000066365A1 (fr) 1999-05-03 2000-05-03 Procede et dispositif pour le conditionnement d'une feuille continue de papier

Publications (1)

Publication Number Publication Date
EP1097045A1 true EP1097045A1 (fr) 2001-05-09

Family

ID=7906671

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00931103A Ceased EP1097045A1 (fr) 1999-05-03 2000-05-03 Procede et dispositif pour le conditionnement d'une feuille continue de papier

Country Status (5)

Country Link
EP (1) EP1097045A1 (fr)
JP (1) JP2002542970A (fr)
CN (1) CN1302261A (fr)
DE (1) DE19920091A1 (fr)
WO (1) WO2000066365A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7229441B2 (en) * 2001-02-28 2007-06-12 Warsaw Orthopedic, Inc. Flexible systems for spinal stabilization and fixation
DE10139219B4 (de) 2001-08-09 2004-10-07 Koenig & Bauer Ag Wiederbefeuchtungsanlage für eine Materialbahn und Verfahren zum Verbessern der Laufeigenschaften einer Materialbahn
DE20207526U1 (de) 2002-05-14 2002-08-29 Vits Maschinenbau GmbH, 40764 Langenfeld Vorrichtung zum Kühlen und Konditionieren einer Bahn
FI124251B (fi) * 2007-05-14 2014-05-15 Valmet Technologies Inc Menetelmä ja sovitelma kuituradan käsittelemiseksi
DE102023201978A1 (de) 2023-03-06 2024-09-12 Bhs Corrugated Maschinen- Und Anlagenbau Gmbh Verfahren zur Rückbefeuchtung einer Bahn aus Papier, und Anlage

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2124650A (en) * 1982-02-16 1984-02-22 Oxy Dry Corp Polyethylene oxide derived lubricants
DE3702218A1 (de) * 1987-01-26 1987-10-22 Klaus Balke Umweltfreundliches trockenverfahren fuer rollenoffsetdruck
US5064694A (en) * 1990-06-01 1991-11-12 Dow Corning Corporation Use of silicone emulsions in the web printing process
DE4021296A1 (de) * 1990-07-04 1992-01-09 Technotrans Boehnensieker Gmbh Verfahren und vorrichtung zum konditionieren eines bahnfoermigen materials
DE4202363C2 (de) * 1992-01-29 1996-02-01 Heidelberger Druckmasch Ag Vorrichtung zum Trennen einer auch aus mehreren Teilbahnen bestehenden Bahn in Abschnitte
DE4227136C3 (de) * 1992-08-17 1998-08-13 Weitmann & Konrad Fa Verfahren und Vorrichtung zum Befeuchten einer bedruckten und anschließend thermisch getrockneten, bewegten Materialbahn, insbesondere Papierbahn
EP0658427B1 (fr) * 1993-12-16 1997-03-19 U.E. SEBALD DRUCK UND VERLAG GmbH Dispositif de séchage
DE4405332A1 (de) * 1994-02-19 1995-08-31 Bse Printtechnologie Rückbefeuchtungssystem, insbesondere für Rollenoffsetmaschinen mit Heatsettrocknung
US5460856A (en) * 1995-02-08 1995-10-24 Siltech Inc. Processes utilizing mixed emulsions in the printing industry
DE19615198C1 (de) * 1996-04-17 1997-07-24 Grafotec Gmbh Vorrichtung zur Rückbefeuchtung einer Bedruckstoffbahn
US5850589A (en) * 1997-09-29 1998-12-15 Xerox Corporation Sheet moisture replacement system using water jet technology

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO0066365A1 *

Also Published As

Publication number Publication date
CN1302261A (zh) 2001-07-04
JP2002542970A (ja) 2002-12-17
DE19920091A1 (de) 2000-11-16
WO2000066365A1 (fr) 2000-11-09

Similar Documents

Publication Publication Date Title
DE2127021A1 (de) Anordnung zur Regulierung der Feuchtigkeitsfilmdicke auf Zylindermantelflächen von Druckmaschinen
DE4301410A1 (de) Druckmaschinen-Reinigungsvorrichtung
EP1022136B1 (fr) Dispositif de conditionnement d'une bande de papier
DE102009019600A1 (de) Anlage und Verfahren zum Bearbeiten einer Papierbahn, insbesondere einer Zigarettenpapierbahn
DE19918669A1 (de) Trockner mit integrierter Kühleinheit
EP0299203A2 (fr) Dispositif de nettoyage des machines d'impression
DE4405332A1 (de) Rückbefeuchtungssystem, insbesondere für Rollenoffsetmaschinen mit Heatsettrocknung
EP1022135B1 (fr) Dispositif pour le remouillage d'une bande sechée de papier
DE3207463A1 (de) Verfahren und vorrichtung zum trocknen und anschliessenden kuehlen von insbesondere nach dem offsetdruckverfahren bedruckten warenbahnen
EP1097045A1 (fr) Procede et dispositif pour le conditionnement d'une feuille continue de papier
DE102008035755A1 (de) Verfahren zum Trocknen eines Bedruckstoffs und/oder eines darauf befindlichen Druckmediums und eine Druckmaschine
DE2824483B2 (de) Vorrichtung zum Befeuchten, Tränken oder Veredeln einer Bahn aus Papier, Karton oder Folie
EP0802052A1 (fr) Dispositif pour le remouillage d'une bande imprimée
EP0463213A1 (fr) Procédé de traitement en surface de bande de papier en mouvement et dispositif pour la mise en oeuvre du procédé
DE973047C (de) Verfahren und Vorrichtung zum Trocknen durchlaufenden Gutes, insbesondere von Gewebebahnen, mittels wesentlich kreisender Heissluft
DE3034300A1 (de) Duesentrockner fuer beschichtete oder bedruckte bahnen
EP3194170B1 (fr) Réglage et/ou changement d'un profile d'amenée de l'eau de mouillage d'un groupe imprimant
DE19915386A1 (de) Vorrichtung zur Vermeidung des Abschmierens beim Transport einer bedruckten Bahn
DE2716613A1 (de) Vorrichtung zum trocknen einer bedruckten oder beschichten inbesondere aus papier bestehenden warenbahn
CH190443A (de) Verfahren und Einrichtung zum Trocknen von mit Farbe, insbesondere Tiefdruckfarbe bedruckten endlosen Bahnen oder Bogen, insbesondere aus Papier.
DE69018135T2 (de) Befeuchtungsvorrichtung für bandförmiges Material, insbesondere Papier.
EP3607141A1 (fr) Procédé et dispositif d'application d'une matière sur une bande en mouvement
AT409349B (de) Auftragsvorrichtung zur aufbringung von fliessfähigen stoffen auf materialbahnen
EP2119826B1 (fr) Méthode et dispositif pour humidifier une bande de matière fibreuse
DE60129409T2 (de) Vorrichtung zur Beschichtung einer laufenden Bahn, insbesondere einer Papier- oder Kartonbahn

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: A1

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

17P Request for examination filed

Effective date: 20010926

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: BALDWIN GERMANY GMBH

17Q First examination report despatched

Effective date: 20030121

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

Free format text: STATUS: THE APPLICATION HAS BEEN REFUSED

18R Application refused

Effective date: 20030725

RBV Designated contracting states (corrected)

Designated state(s): DE FR GB IT SE