EP2454099B1 - Feuchtwerkwalzen - Google Patents

Feuchtwerkwalzen Download PDF

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Publication number
EP2454099B1
EP2454099B1 EP10735239.5A EP10735239A EP2454099B1 EP 2454099 B1 EP2454099 B1 EP 2454099B1 EP 10735239 A EP10735239 A EP 10735239A EP 2454099 B1 EP2454099 B1 EP 2454099B1
Authority
EP
European Patent Office
Prior art keywords
dampening
roller
layer
outer layer
dampening unit
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.)
Active
Application number
EP10735239.5A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2454099A1 (de
Inventor
Thorsten Pfeil
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.)
Felix Bottcher & Co KG GmbH
Felix Boettcher GmbH and Co KG
Original Assignee
Felix Bottcher & Co KG GmbH
Felix Boettcher GmbH and Co KG
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 Felix Bottcher & Co KG GmbH, Felix Boettcher GmbH and Co KG filed Critical Felix Bottcher & Co KG GmbH
Priority to EP10735239.5A priority Critical patent/EP2454099B1/de
Priority to PL10735239T priority patent/PL2454099T3/pl
Priority to SI201030806T priority patent/SI2454099T1/sl
Publication of EP2454099A1 publication Critical patent/EP2454099A1/de
Application granted granted Critical
Publication of EP2454099B1 publication Critical patent/EP2454099B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41N—PRINTING PLATES OR FOILS; MATERIALS FOR SURFACES USED IN PRINTING MACHINES FOR PRINTING, INKING, DAMPING, OR THE LIKE; PREPARING SUCH SURFACES FOR USE AND CONSERVING THEM
    • B41N7/00—Shells for rollers of printing machines
    • B41N7/04—Shells for rollers of printing machines for damping rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41N—PRINTING PLATES OR FOILS; MATERIALS FOR SURFACES USED IN PRINTING MACHINES FOR PRINTING, INKING, DAMPING, OR THE LIKE; PREPARING SUCH SURFACES FOR USE AND CONSERVING THEM
    • B41N2207/00—Location or type of the layers in shells for rollers of printing machines
    • B41N2207/02—Top layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41N—PRINTING PLATES OR FOILS; MATERIALS FOR SURFACES USED IN PRINTING MACHINES FOR PRINTING, INKING, DAMPING, OR THE LIKE; PREPARING SUCH SURFACES FOR USE AND CONSERVING THEM
    • B41N2207/00—Location or type of the layers in shells for rollers of printing machines
    • B41N2207/10—Location or type of the layers in shells for rollers of printing machines characterised by inorganic compounds, e.g. pigments

Definitions

  • the present invention relates to a roller in the dampening unit, such as dampening drive roller, wet transfer roller or dampening roller and their use in a dampening unit.
  • Offset printing is an indirect printing process used in newspaper, magazine and catalog printing.
  • a printing plate is created, typically a thin aluminum plate. This is clamped on a plate cylinder and is in the printing machine with inking and dampening in conjunction. Lipophilic areas of the printing form accept ink while hydrophilic areas remain colorless.
  • the ink is transferred to the blanket mounted on a blanket cylinder or offset cylinder.
  • the blanket cylinder then transfers the ink to the medium to be printed using a counter-pressure cylinder or another blanket cylinder.
  • Typical dampening units include one or more rollers, often having soft surface, eg, elastomeric, rollers in contact with one or more hard rollers or other elastomer-related rollers.
  • a soft dampening roller is in direct connection with the dampening solution supply. She "draws” fountain solution from the supply and transfers it to a hard roller. The hard roller transfers the dampening solution film to the dampening roller.
  • the hard roller is referred to as dampening drive roller, as wet transfer roller or as a wet roller. These three terms are used synonymously in this text.
  • the wet-type dipping roller is a hard roller which first transfers the dampening solution to a soft roller (wet transfer roller or dampening roller), which then transfers it to a hard dampening roller or wet transfer roller, which finally transfers to the dampening roller.
  • dampening units there are further rollers, e.g. Rider rollers, which serve to smooth the dampening solution film or bridge rollers, which establish a contact between inking and dampening unit.
  • rollers e.g. Rider rollers, which serve to smooth the dampening solution film or bridge rollers, which establish a contact between inking and dampening unit.
  • rollers are hard rollers, i. Rollers without elastomer cover.
  • dampening unit As materials for the surfaces of hard rollers in the dampening unit, such as dampening drive rollers or wet transfer rollers, chromium, ceramic and stainless steel are common.
  • DE-AS-1257170 describes processes for hydrophilizing dampening rollers by preparing a coating containing a vinyl silane.
  • the outer layer of the roll is formed by a silane.
  • DE60120444T2 discloses dummy plates which are roughened and anodized aluminum plates. Such plates are mounted there on rollers where no ink to be transferred to the web to be printed.
  • US 2003/0045412 discloses a laser engravable embossing roll that can support a fluorinated outer layer.
  • GB 1 247 734 discloses articles having a nickel layer followed by a fluorocarbon layer and then sintered.
  • DE 2 353 593 discloses a method for improving the properties of anodic oxide films on aluminum or aluminum alloys.
  • EP 1 674 243 A2 discloses an apparatus and method for making three-dimensional models.
  • a roller can be used, which has an anodized aluminum surface.
  • US 6,290,834 discloses a transfer roller for transporting liquids with a hard ceramic coating.
  • dampening roller associated with the printing form is wetted during operation with printing ink or an ink emulsion. It then transmits this successively backwards to the other rollers in the dampening unit, both on the wet dipping or dampening metering roller and on the dampening roller or wet transfer roller, so that it can even come to contamination of the dampening solution in the end.
  • the carryover of the paint leads over time to color build-up on the surfaces of the dampening rollers and impairment of the printing process. As a rule, this will stop the printing process and require cleaning.
  • the dampening roller according to the invention show a reduced color cleavage, improved and more uniform dampening solution transfer and / or easier washability.
  • a roller which has an outer layer which is an aluminum hard oxoxide or a layer of chemical nickel or an aluminum oxide layer obtainable by plasma-chemical anodic oxidation is used as the hard roller in the dampening unit, in particular dampening drive roller, dampening roller or wet transfer roller.
  • Hard oxoates of aluminum are known to the person skilled in the art. They are obtained by anodizing in a cold, acidic electrolyte. The electric current forms a protective aluminum oxide layer on the surface.
  • aluminum and aluminum alloys can be used as starting material.
  • a roll is used in which the entire roll (monolithic) is made of aluminum.
  • the roll includes a core of another material, such as a steel core, a carbon fiber or glass fiber core, or the like, and an outer shell of aluminum that is hard-anodized.
  • PTFE polytetrafluoroethylene
  • silicon carbide particles are incorporated into the outer layer during production of the anodized material.
  • Chemical nickel is a process in which electroless nickel is deposited from a solution of nickel ions and a reducing agent (typically hypophosphite).
  • a reducing agent typically hypophosphite
  • a core selected from steel cores, aluminum cores and carbon fiber cores is used. It is also possible in this case that in the outer layer of PTFE, other fluorine-containing polymer or Siliziumcarbidpitate be stored.
  • phosphorus is also typically incorporated into the layer.
  • Another suitable outer layer is obtained by a plasma-chemical coating.
  • a workpiece with an external power source can be connected as the anode.
  • oxygen plasma discharges on the workpiece surface, melts it, and forms two layers of oxide ceramics, which mainly consist of corundum and boehmite; see also EP 0 545 230 ,
  • the preferred layer thickness is 5 to 200, more preferably 20 to 100 ⁇ m, preferably 30 to 60 ⁇ m.
  • the aluminum hardoxates a roughness of the surface of Rz 0.1 to 100, preferably Rz 0.5 to 8 microns is particularly suitable.
  • the preferred layer thickness is 5 to 200, more preferably 20 to 100 ⁇ m, preferably 30 to 60 ⁇ m.
  • the aluminum oxides (corundum, boehmite) is a roughness of Surface of Ra 0.05 to 20.0 preferably Ra 0.1 to 2.0 microns particularly suitable.
  • the typical thickness is 2 to 40 ⁇ m, preferably 10 to 20 ⁇ m.
  • a roughness of Rz 0.1 to 100, preferably Rz 0.5 to 8 microns is particularly suitable.
  • Another embodiment of the invention is a dampening roller according to the invention, as described above, in which additionally a PTFE or fluorine-containing polymer layer is applied, i. a PTFE or other fluorine-containing polymers are not incorporated in the layer, but form a separate layer.
  • the invention relates to a dampening unit comprising at least one roller according to the invention and the use of the roller according to the invention as a roller, in particular dampening drive roller or wet transfer roller in a dampening unit.
  • the dampening roller according to the invention show good wet transfer performance with a reduction in color cleavage.
  • FIG. 1 shows schematically the structure of a four-roll dampening unit.
  • the wet dipping roller (5b) is a hard roller which first transfers the dampening solution to a soft roller (6), which then transfers it to a hard dampening drive roller, dampening roller (4) which transfers to the dampening roller (3) finally applies to the plate cylinder (1).
  • the plate cylinder is also in connection with the inking rollers (2).
  • FIG. 2 shows schematically the structure of a three-roll dampening unit.
  • a soft wet dipping roller (5a) is in direct connection with the dampening solution supply. It "draws” fountain solution from the supply and transfers it to a hard dampening roller or wet transfer roller (4).
  • Roller (4) transfers the dampening solution film onto the dampening applicator roll (3), which finally applies to the plate cylinder (1).
  • the plate cylinder is also in connection with the inking rollers (2).
  • An aluminum roller having a coating length of 1110 mm and a diameter of 125 mm was provided with a hard iron oxide layer of a thickness of 40 ⁇ m.
  • a three-roll dampening unit in a web offset press When used in a three-roll dampening unit in a web offset press, it exhibited very uniform dampening solution transfer and improved dampening solution transfer capacity (speed could be reduced by 10%) compared to a ceramic roller, while the color rejection was reduced.
  • An aluminum roller having a coating length of 530 mm and a diameter of 58 mm was provided with a hard iron oxide layer having a thickness of 40 ⁇ m.
  • a hard iron oxide layer having a thickness of 40 ⁇ m.
  • An aluminum roller with a coating length of 530 mm and a diameter of 58 mm was provided with a PTFE-filled chemical nickel layer of a thickness of 15 microns. When used in a three-roll dampening unit in a sheet-fed offset press, it showed very even dampening solution transfer and improved dampening solution transfer performance.
  • An aluminum roller with a coating length of 530 mm and a diameter of 58 mm was coated with a PTFE-filled hard-enamel layer a thickness of 40 microns provided.
  • a PTFE-filled hard-enamel layer a thickness of 40 microns provided.
  • An aluminum roller having a coating length of 530 mm and a diameter of 58 mm was provided with an alumina (corundum, boehmite) layer having a thickness of 50 ⁇ m.
  • alumina corundum, boehmite

Landscapes

  • Rotary Presses (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Printing Plates And Materials Therefor (AREA)
  • Rolls And Other Rotary Bodies (AREA)
EP10735239.5A 2009-07-14 2010-07-14 Feuchtwerkwalzen Active EP2454099B1 (de)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP10735239.5A EP2454099B1 (de) 2009-07-14 2010-07-14 Feuchtwerkwalzen
PL10735239T PL2454099T3 (pl) 2009-07-14 2010-07-14 Walce zespołu zwilżającego
SI201030806T SI2454099T1 (sl) 2009-07-14 2010-07-14 Valji vlaĹľilnega sistema

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP09165365 2009-07-14
EP10735239.5A EP2454099B1 (de) 2009-07-14 2010-07-14 Feuchtwerkwalzen
PCT/EP2010/060147 WO2011006932A1 (de) 2009-07-14 2010-07-14 Feuchtwerkwalzen

Publications (2)

Publication Number Publication Date
EP2454099A1 EP2454099A1 (de) 2012-05-23
EP2454099B1 true EP2454099B1 (de) 2014-09-10

Family

ID=41416224

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10735239.5A Active EP2454099B1 (de) 2009-07-14 2010-07-14 Feuchtwerkwalzen

Country Status (16)

Country Link
US (1) US20120145021A1 (es)
EP (1) EP2454099B1 (es)
JP (1) JP5695043B2 (es)
CN (1) CN102470685A (es)
AU (1) AU2010272520B2 (es)
BR (1) BR112012000949A2 (es)
CA (1) CA2769305A1 (es)
DK (1) DK2454099T3 (es)
EA (1) EA201200126A1 (es)
ES (1) ES2523349T3 (es)
PL (1) PL2454099T3 (es)
PT (1) PT2454099E (es)
SG (1) SG177348A1 (es)
SI (1) SI2454099T1 (es)
UA (1) UA108855C2 (es)
WO (1) WO2011006932A1 (es)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010049458A1 (de) 2010-10-22 2012-04-26 Paul Sauer Gmbh & Co. Walzenfabrik Kg Walze mit verstärktem Walzenmantel
DE102010049457A1 (de) 2010-10-22 2012-04-26 Paul Sauer Gmbh & Co. Walzenfabrik Kg Walze oder Walzenelement mit verstärktem Walzenmantel
DE202011107519U1 (de) 2011-11-04 2011-12-08 Paul Sauer Gmbh & Co. Walzenfabrik Kg Walze mit gummielastischem Walzenmantel
DE202011107518U1 (de) 2011-11-04 2011-12-08 Paul Sauer Gmbh & Co. Walzenfabrik Kg Walze oder Walzenelement mit elastomerem Walzenmantel
US9757747B2 (en) 2014-05-27 2017-09-12 Palo Alto Research Center Incorporated Methods and systems for creating aerosols
US9527056B2 (en) * 2014-05-27 2016-12-27 Palo Alto Research Center Incorporated Methods and systems for creating aerosols
US10493483B2 (en) 2017-07-17 2019-12-03 Palo Alto Research Center Incorporated Central fed roller for filament extension atomizer
US10464094B2 (en) 2017-07-31 2019-11-05 Palo Alto Research Center Incorporated Pressure induced surface wetting for enhanced spreading and controlled filament size

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2991204A (en) 1957-06-19 1961-07-04 Harris Intertype Corp Hydrophilic surface
GB1247734A (en) * 1967-09-25 1971-09-29 Garry R Perkins Abrasion-resistant self-lubricating coating and method
US4052937A (en) * 1972-09-12 1977-10-11 Vickers Limited Printing plate water sensing means and method
JPS5219535B2 (es) * 1972-10-28 1977-05-28
DE4139006C3 (de) * 1991-11-27 2003-07-10 Electro Chem Eng Gmbh Verfahren zur Erzeugung von Oxidkeramikschichten auf sperrschichtbildenden Metallen und auf diese Weise erzeugte Gegenstände aus Aluminium, Magnesium, Titan oder deren Legierungen mit einer Oxidkeramikschicht
DE4239391C2 (de) 1991-11-27 1996-11-21 Electro Chem Eng Gmbh Gegenstände aus Aluminium, Magnesium oder Titan mit einer mit Fluorpolymeren gefüllten Oxidkeramikschicht und Verfahren zu ihrer Herstellung
JP3022717B2 (ja) * 1993-12-27 2000-03-21 株式会社金陽社 印刷機用湿し水ローラ
CN1089683C (zh) * 1997-09-19 2002-08-28 王卫中 印刷机中传水用陶瓷辊及其制法
US6093256A (en) * 1997-11-14 2000-07-25 Fort James Corp Embossing roll cleaning method
US20050104241A1 (en) * 2000-01-18 2005-05-19 Objet Geometried Ltd. Apparatus and method for three dimensional model printing
US6290834B1 (en) * 2000-04-12 2001-09-18 Ceramic Coatings Technologies, Inc. Ceramic coated liquid transfer rolls and methods of making them
JP4042902B2 (ja) 2000-10-16 2008-02-06 イーストマン コダック カンパニー ダミープレートの製造のための増粘剤を含むコーティング組成物
US20030045412A1 (en) * 2001-07-13 2003-03-06 Schulz Galyn A. Laser engraved embossing roll with wear-resistant coatings and method of making them
JP4920237B2 (ja) * 2005-10-24 2012-04-18 株式会社小森コーポレーション 印刷機の圧胴または搬送胴の被覆体
JP2008265045A (ja) * 2007-04-17 2008-11-06 Dic Corp 平版印刷機用給水ローラー洗浄剤

Also Published As

Publication number Publication date
SG177348A1 (en) 2012-02-28
SI2454099T1 (sl) 2014-12-31
PT2454099E (pt) 2014-10-30
WO2011006932A1 (de) 2011-01-20
BR112012000949A2 (pt) 2016-03-15
UA108855C2 (ru) 2015-06-25
EP2454099A1 (de) 2012-05-23
PL2454099T3 (pl) 2015-03-31
US20120145021A1 (en) 2012-06-14
CA2769305A1 (en) 2011-01-20
JP2012532778A (ja) 2012-12-20
CN102470685A (zh) 2012-05-23
EA201200126A1 (ru) 2012-06-29
AU2010272520B2 (en) 2015-03-12
ES2523349T3 (es) 2014-11-25
JP5695043B2 (ja) 2015-04-01
DK2454099T3 (en) 2014-12-15
AU2010272520A1 (en) 2012-01-19

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