EP0779150A1 - Installation de lavage d'une machine de l'industrie graphique - Google Patents

Installation de lavage d'une machine de l'industrie graphique Download PDF

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Publication number
EP0779150A1
EP0779150A1 EP96115102A EP96115102A EP0779150A1 EP 0779150 A1 EP0779150 A1 EP 0779150A1 EP 96115102 A EP96115102 A EP 96115102A EP 96115102 A EP96115102 A EP 96115102A EP 0779150 A1 EP0779150 A1 EP 0779150A1
Authority
EP
European Patent Office
Prior art keywords
cleaning liquid
cleaning
ion
ion exchanger
washing
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
Application number
EP96115102A
Other languages
German (de)
English (en)
Other versions
EP0779150B1 (fr
Inventor
Walter R. Müller
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 Grafotec GmbH
Original Assignee
Baldwin Gegenheimer 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 Gegenheimer GmbH filed Critical Baldwin Gegenheimer GmbH
Publication of EP0779150A1 publication Critical patent/EP0779150A1/fr
Application granted granted Critical
Publication of EP0779150B1 publication Critical patent/EP0779150B1/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
    • B41F35/00—Cleaning arrangements or devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
    • B41P2235/00—Cleaning
    • B41P2235/30—Recovering used solvents or residues
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
    • B41P2235/00—Cleaning
    • B41P2235/30—Recovering used solvents or residues
    • B41P2235/31—Recovering used solvents or residues by filtering

Definitions

  • the invention relates to a washing system in the graphics industry for washing off paint, fibers, dust and other contaminants from rotating bodies while these rotating bodies are rotating, with a cleaning liquid which contains solvents for dissolving the Contains paint and for dissolving other soluble contaminants, according to the preamble of claim 1. Furthermore, the invention relates to a method for a machine of the graphics industry for washing up according to the preamble of the independent dependent claim for this method.
  • washing systems for washing rotating rotary bodies of a machine in the graphics industry, in particular printing machines, and of these in turn of offset printing machines are known from various documents.
  • the cleaning agent for washing the rotating bodies is conducted in a recirculation circuit.
  • DE utility models G 91 15 948.2 and G 88 01 323.5 as well as DE-C-30 05 236 and DE-A-41 16 762 it is known to arrange mechanical filters in the return line of the recirculation circuit, by means of which from the cleaning liquid, which one flows back from a rotating body to a storage container, mechanical components are filtered.
  • DE-A 30 25 639 it is known to use a centrifuge as a filter means, through which solid contaminants are separated from the cleaning liquid.
  • cleaning fluid in the graphics industry must not have a negative impact on print quality. Therefore, modern cleaning fluids mainly consist of high-quality organic substances, which not only have a cleaning effect, but at the same time also effects that are advantageous for the printing process, for example a metered moistening of the rotating bodies during the printing process for the purpose that no printing ink from the printed printing medium on the rotating body is liable and transferred to it, which damages the Print image on the print carrier would mean.
  • "dampening solution” can also be used as the cleaning liquid, which is also used in the same printing press to form ink-repellent areas on the printing plate of the printing plate cylinder in the offset printing process.
  • the invention is not limited to the cleaning of printing unit cylinders, for example blanket cylinders, impression cylinders or printing plate cylinders, but can be used for the continuous or discontinuous cleaning of all cylinders and rollers of machines in the graphics industry, for example for cleaning the cylinders of printing units, the rollers of inking units or Damping units, for cleaning guide rollers, the cylinders of calenders, for cleaning rollers or cylinders in glue applicators and laminating machines.
  • the print carriers can be sheets, for example sheets of paper for brochures or newspapers, or webs which run from an unwind roll to a take-up roll or to a cutting device which cuts the web into sheets.
  • the object of the invention is to solve the rotating body of machines in the graphics industry from components dissolved in it, without exchanging the cleaning liquid and without affecting the operation of the machine or the print quality affect. This object is to be achieved with means which do not require large-sized devices, which are not expensive, and which are harmless with regard to fire and explosion.
  • Fig. 1 shows broken a rotary body 2 of a machine in the graphics industry, for example a rubber impression cylinder, impression cylinder, impression cylinder or an ink roller of an offset printing machine or the like.
  • the washing system for cleaning the rotating body 2 with a solvent-containing Cleaning liquid contains a rotating washing roller 4, which bears continuously or discontinuously on the rotating body 2, which also rotates. The speeds and directions of rotation of the rotating body 2 and the washing roller 4 are selected such that a relative movement takes place between their abutting surfaces. Instead of a washing roller 4, another washing element can also be used.
  • the cleaning liquid is stored in a storage container 6, to which fresh cleaning liquid can also be supplied and from which the cleaning liquid is supplied to the washing roller 4 via a feed 8 and is returned to the storage container 6 via a return 10.
  • the feed 8 contains a pump 12 for conveying the cleaning liquid from the reservoir 6 to a nozzle device 14 with one or more nozzles at the end of the feed 8, which spray the cleaning liquid onto the washing roller 4.
  • Fresh cleaning liquid dripping from the washing roller 4 and dirty cleaning liquid stripped from the rotating body 2 by the washing roller 4 and optionally cleaning liquid spraying off from the rotating body 2 are collected by a collecting pan 16 at the beginning of the return 10.
  • the return 10 contains, in the flow direction, the collecting wall 16, a return tank 20 connected to it via an upstream line 18, a 2/2-way valve 22, an intermediate line 25 with a pump 24, a Filter device 26 with a coarse filter 28 and a downstream fine filter 30 for filtering solid particles from the cleaning liquid, and an ion exchanger 32 in a downstream return line section 33 between the filter device 26 and the reservoir 6.
  • the cleaning liquid circulates in the recirculation circuit consisting of reservoir 6, flow 8 and return 10 during the cleaning operation if the said first valve 22 does not have the closed position shown, but rather the open position, while all other valves shown in the drawing have their closed position.
  • the closed position means that the valves do not let any liquid through; Open position here means that the valves let liquid pass through.
  • a level switch 34 causes, via a control device, that the pumps 12 and 24 are only switched on when the cleaning liquid in the return tank 20 has reached a certain level, but not at a lower level.
  • a flushing line 36 with a second valve 38 connects the reservoir 6 to the intermediate line 25 of the return 10 upstream of its pump 24.
  • the filters 28 and 30 of the filter device 26 can be flushed in the reverse direction when the first valve 22 is closed, the second valve 38 is opened, a third valve 40 bridging the return pump 24 is opened, one on the pressure side of the return pump 24 arranged and also bypassed by the third valve 40 fourth valve 42 is closed on the pressure side of the return pump 24, the downstream return line section 33 upstream of the ion exchange 32 is closed by a fifth valve 44, the pressure side of the flow pump 12 by closing one sixth valve 46 is separated from the flow and is connected to the output of the filter device 26 by opening a seventh valve 48, the flow pump 12 is switched on while the return pump 24 is switched off.
  • the ion exchanger 32 contains at least one or more ion filters 50 arranged in series or parallel to one another and through which the cleaning liquid of the return 10 flows.
  • the ion filters 50 contain filter materials for ion exchange and thus for filtering out dissolved components of the cleaning liquid, in particular for ionically filtering out alkaline colors and of acid colors.
  • the cleaning liquid contains organic constituents which react with oxygen in air and thereby form peroxides, for example in the collecting pan 16, the washing roller 4 and / or the rotating body 2, then
  • the ion exchanger preferably also contains ion filter material which generates an ion exchange with these peroxides and thereby filters these peroxides out of the cleaning liquid.
  • the ion filter materials are preferably ion exchange resins.
  • other substances dissolved in the cleaning liquid can also be filtered out of this cleaning liquid by ion exchange.
  • the ion exchanger 32 must contain an ion exchange mass which is adapted for this.
  • the ion filter masses 50 can be exchanged or regenerated.
  • a cover 52 of the ion exchanger 32 can be removed for such an exchange.
  • regenerate the ion filter masses of the ion filter 50 they must be rinsed with a suitable chemical solution.
  • it can be connected at its lower end via an eighth valve 54 to a trough 55, and at its upper end facing away from it via a ninth valve 56 can be connected to a second regenerating agent container 58, in which the Chemical solution.
  • the downstream return line section 33 must be closed by closing the fifth valve 44 from the filter device 26 and by closing a tenth Valve 60 are separated from the reservoir 6 of the cleaning liquid.
  • the ion exchanger 32 can also be used without an upstream filter device 26 for filtering solid contaminants. According to other embodiments, the ion exchanger 32 can also be used in combination with other types of filters.
  • a centrifugal separator e.g. a decanter can be arranged in the return 10 upstream of the ion exchanger 32.
  • the principle of action of the invention or of the ion exchanger is based on the fact that printing ink ingredients, such as, for example, manganese salts and cobalt salts and peroxides, are bound to strongly acidic and / or strongly basic ion exchangers, preferably ion exchanger resins.
  • the ion exchanger is preferably a so-called mixed bed reactor, which works according to the so-called mixed bed process.
  • the invention can also be referred to as an "absorbent solvent cleaning system for offset machines" or as a “regeneration method for printing blanket cleaning".
  • Interchangeable cartridge-shaped ion exchange filter elements are preferably used for the invention.

Landscapes

  • Cleaning By Liquid Or Steam (AREA)
  • Control Of Washing Machine And Dryer (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)
  • Detergent Compositions (AREA)
EP96115102A 1995-12-15 1996-09-20 Installation de lavage d'une machine de l'industrie graphique Expired - Lifetime EP0779150B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19546972 1995-12-15
DE19546972A DE19546972A1 (de) 1995-12-15 1995-12-15 Waschanlage einer Maschine der graphischen Industrie

Publications (2)

Publication Number Publication Date
EP0779150A1 true EP0779150A1 (fr) 1997-06-18
EP0779150B1 EP0779150B1 (fr) 2000-03-01

Family

ID=7780286

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96115102A Expired - Lifetime EP0779150B1 (fr) 1995-12-15 1996-09-20 Installation de lavage d'une machine de l'industrie graphique

Country Status (3)

Country Link
EP (1) EP0779150B1 (fr)
AT (1) ATE190010T1 (fr)
DE (2) DE19546972A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10061870A1 (de) * 2000-12-12 2002-06-13 Kohnert Baerbel Verfahren und Vorrichtung zur Filtration von Feuchtmittel
EP1273331A2 (fr) * 2001-07-05 2003-01-08 MAN Roland Druckmaschinen AG Traitement de compositions de lavages usagés
WO2006095371A1 (fr) * 2005-03-10 2006-09-14 Universita'degli Studi Di Salerno Procede pour nettoyer des cylindres graves utilises dans l'industrie de l'imprimerie et du conditionnement, destine a eliminer des residus d'adhesif et/ou d'encre
WO2023078865A1 (fr) * 2021-11-03 2023-05-11 Bobst Bielefeld Gmbh Système de récupération d'une solution de nettoyage et machine d'impression

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2549844A1 (en) * 1983-07-28 1985-02-01 Canon Kk Purifying dye solns. for ink prodn.
DE9115948U1 (de) * 1991-12-21 1992-02-20 Lößner, Wolfgang, 6229 Kiedrich Waschanlage für den Gummituchzylinder einer Offsetdruckmaschine
DE4113813A1 (de) * 1991-04-27 1992-10-29 Gat Handelsgesellschaft Fuer I Verfahren zum reinigen des farbstoffe, organische loesungsmittel und gegebenenfalls andere verunreinigungen enthaltenden abwasser aus druckereibetrieben

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3005236C2 (de) * 1980-02-13 1983-05-19 Mathias Bäuerle GmbH, 7742 St Georgen Waschwerk für eine Offsetmaschine
DE3025639A1 (de) * 1980-07-07 1982-01-21 Maschinenfabrik Goebel Gmbh, 6100 Darmstadt Einrichtung zum reinigen eines an einer stahlstichdruckmaschine befindlichen wischzylinders
DE8801323U1 (de) * 1988-02-03 1988-03-17 Gisch, Lieselotte, 2081 Alveslohe Vorrichtung zum Waschen von Feuchtwalzen
DE4116762A1 (de) * 1991-05-23 1992-11-26 Roland Man Druckmasch Vorrichtung zum waschen eines zylinders einr druckmaschine
DE4129189C2 (de) * 1991-09-03 1997-02-27 Roland Man Druckmasch Vorrichtung zum Waschen eines Zylinders einer Druckmaschine
DE4216423A1 (de) * 1992-05-18 1993-11-25 Baldwin Gegenheimer Gmbh Druckwerks-Waschvorrichtung für Druckmaschinen
DE4216389A1 (de) * 1992-05-18 1993-11-25 Baldwin Gegenheimer Gmbh Druckwerks-Waschvorrichtung für Druckmaschinen
US5367982A (en) * 1993-02-25 1994-11-29 Howard W. DeMoore Automatic coating circulation and wash-up system for printing presses
IT1266557B1 (it) * 1993-07-21 1997-01-09 Arturo Guerini Procedimento e apparecchiatura di trattamento del liquido di bagnatura in macchine da stampa, particolarmente per macchine da
US5402724A (en) * 1993-10-29 1995-04-04 Paper Converting Machine Company Method and apparatus for washing the deck of a press or coater

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2549844A1 (en) * 1983-07-28 1985-02-01 Canon Kk Purifying dye solns. for ink prodn.
DE4113813A1 (de) * 1991-04-27 1992-10-29 Gat Handelsgesellschaft Fuer I Verfahren zum reinigen des farbstoffe, organische loesungsmittel und gegebenenfalls andere verunreinigungen enthaltenden abwasser aus druckereibetrieben
DE9115948U1 (de) * 1991-12-21 1992-02-20 Lößner, Wolfgang, 6229 Kiedrich Waschanlage für den Gummituchzylinder einer Offsetdruckmaschine

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10061870A1 (de) * 2000-12-12 2002-06-13 Kohnert Baerbel Verfahren und Vorrichtung zur Filtration von Feuchtmittel
DE10061870B4 (de) * 2000-12-12 2011-06-09 Platsch Gmbh & Co.Kg Verfahren und Vorrichtung zur Filtration von Feuchtmittel
EP1273331A2 (fr) * 2001-07-05 2003-01-08 MAN Roland Druckmaschinen AG Traitement de compositions de lavages usagés
EP1273331A3 (fr) * 2001-07-05 2003-02-12 MAN Roland Druckmaschinen AG Traitement de compositions de lavages usagés
DE10132600B4 (de) * 2001-07-05 2006-10-05 Man Roland Druckmaschinen Ag Aufbereitung von gebrauchten Waschmitteln
WO2006095371A1 (fr) * 2005-03-10 2006-09-14 Universita'degli Studi Di Salerno Procede pour nettoyer des cylindres graves utilises dans l'industrie de l'imprimerie et du conditionnement, destine a eliminer des residus d'adhesif et/ou d'encre
WO2023078865A1 (fr) * 2021-11-03 2023-05-11 Bobst Bielefeld Gmbh Système de récupération d'une solution de nettoyage et machine d'impression

Also Published As

Publication number Publication date
DE59604538D1 (de) 2000-04-06
EP0779150B1 (fr) 2000-03-01
DE19546972A1 (de) 1997-06-19
ATE190010T1 (de) 2000-03-15

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