EP2509797B1 - Reiberwalzen - Google Patents

Reiberwalzen Download PDF

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Publication number
EP2509797B1
EP2509797B1 EP10788320.9A EP10788320A EP2509797B1 EP 2509797 B1 EP2509797 B1 EP 2509797B1 EP 10788320 A EP10788320 A EP 10788320A EP 2509797 B1 EP2509797 B1 EP 2509797B1
Authority
EP
European Patent Office
Prior art keywords
roller
coating composition
polyamide
layer thickness
roughness
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
EP10788320.9A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2509797A1 (de
Inventor
Gerhard Bartscher
Uwe Zettl
Hendrik Ansorge
Silke Grosse
Birgit Frings
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 SI201030813T priority Critical patent/SI2509797T1/sl
Priority to PL10788320T priority patent/PL2509797T3/pl
Priority to EP10788320.9A priority patent/EP2509797B1/de
Publication of EP2509797A1 publication Critical patent/EP2509797A1/de
Application granted granted Critical
Publication of EP2509797B1 publication Critical patent/EP2509797B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41NPRINTING 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
    • B41N7/00Shells for rollers of printing machines
    • B41N7/005Coating of the composition; Moulding; Reclaiming; Finishing; Trimming
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41FPRINTING MACHINES OR PRESSES
    • B41F31/00Inking arrangements or devices
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41FPRINTING MACHINES OR PRESSES
    • B41F31/00Inking arrangements or devices
    • B41F31/002Heating or cooling of ink or ink rollers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41FPRINTING MACHINES OR PRESSES
    • B41F31/00Inking arrangements or devices
    • B41F31/02Ducts, containers, supply or metering devices
    • B41F31/14Applications of messenger or other moving transfer rollers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41FPRINTING MACHINES OR PRESSES
    • B41F31/00Inking arrangements or devices
    • B41F31/26Construction of inking rollers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41NPRINTING 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
    • B41N7/00Shells for rollers of printing machines
    • B41N7/04Shells for rollers of printing machines for damping rollers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41NPRINTING 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
    • B41N7/00Shells for rollers of printing machines
    • B41N7/06Shells for rollers of printing machines for inking rollers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41NPRINTING 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
    • B41N2207/00Location or type of the layers in shells for rollers of printing machines
    • B41N2207/02Top layers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41NPRINTING 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
    • B41N2207/00Location or type of the layers in shells for rollers of printing machines
    • B41N2207/14Location or type of the layers in shells for rollers of printing machines characterised by macromolecular organic compounds

Definitions

  • the present application relates to a method for. Production of a rigid roll, a rigid roll and their use.
  • Offset printing is still the dominant technology in printing processes. It is an indirect printing process that is used in newspaper, magazine, catalog and packaging printing, etc.
  • 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.
  • the color is applied from the reservoir via a special inking unit.
  • the ink is typically transported via the stool by means of a plurality of rollers.
  • rigid rollers distributed via the stool by means of a plurality of rollers.
  • elastic rollers ink rollers
  • the distributor rollers typically consist of a steel core with a coating of Rilsan and are therefore often referred to as Rilsanwalzen. These are usually made in the following process: The bare steel core is heated and then introduced into a bath of Rilsan powder (a special grade of polyamide) rotating. The Rilsan powder melts in contact with the hot core, ensuring a relatively uniform coating. The surface quality of the coating is far from sufficient for use in offset printing, so they z. B. must be processed via a grinding process.
  • US 5,099,759 relates to an anilox roll with a synthetic resin coating, for example based on polyimides or polyamide-imides.
  • EP 0 942 833 B1 describes a paint roller in which an elastomeric coating material such as polymeric nitrile butadiene, phenolic resin, epoxy resin, polyurethane and other materials are applied to a roller.
  • an elastomeric coating material such as polymeric nitrile butadiene, phenolic resin, epoxy resin, polyurethane and other materials are applied to a roller.
  • the object of the present invention was to provide processes for producing rolls and rolls which overcome the above-mentioned disadvantages of the prior art.
  • a roll core is provided in the first step.
  • Typical roll cores are made of metal, especially steel and aluminum. But it may also be non-metallic roll cores, for example ceramic, glass fiber reinforced plastic (GfK) or carbon fiber reinforced plastic (CfK) act.
  • GfK glass fiber reinforced plastic
  • CfK carbon fiber reinforced plastic
  • the roll core according to the invention is for an intemperated roll.
  • InnertemperATOR rollers are rollers that can be tempered using a tempering medium.
  • the tempering medium may be a liquid or tempered air.
  • temperature controls are used for cooling.
  • Corresponding rollers are for example from the DE 93 169 324 known.
  • the roll core may have a roughness Rz of 0.1 to 100 ⁇ m, preferably 1 to 30 ⁇ m.
  • the coating composition essentially comprises a polyimide or polyamide prepolymer.
  • Starting materials for the preparation of polyimides are preferably aromatic and aliphatic diamines with aromatic tetracarboxylic dianhydrides; instead of the diamines, it is also possible to use diisocyanates.
  • a polyamic acid is formed, which then reacts to form the polyimide.
  • starting materials for polyamideimides are preferably aromatic tricarboxylic anhydrides with aromatic or aliphatic diamines or diisocyanates.
  • Prepolymers are understood as meaning mixtures of reactive monomers which have already partially but not completely reacted with the polymer.
  • the curing reaction takes place after application to the roll core. Curing is achieved or accelerated by heating.
  • a range of 1 to 1000 microns has proven to be fundamentally suitable, with a range of 10 to 200 microns, or 20 to 120 microns is preferred.
  • the coating composition is used essentially on the basis of a polyimide or polyamide-imide prepolymer, it may contain further substances, in particular fillers, additives, colorants, etc.
  • the coating composition preferably contains a polyimide or polyamide-imide prepolymer as the main constituent ( ⁇ 50 wt .%).
  • the coating composition of prepolymers contains only polyimide prepolymers.
  • the coating composition contains only polyamide-imide prepolymers.
  • the coating composition contains both polyimide prepolymers and polyamide-imide prepolymers.
  • Another embodiment is a roller in which the coating composition contains a polyimide prepolymer and, in addition, polyamides or polyamideimides are contained in the coating composition.
  • Another embodiment is a roller in which the coating composition contains dissolved polyimides instead of polyimide prepolymers.
  • the coating composition additionally contains polyamides or polyamide prepolymers.
  • the ratio of polyimide prepolymers to polyamides + polyamide prepolymers is preferably in the ratio of 10: 0 to 10: 9.
  • the coating composition may also contain dissolved polyamide-imide.
  • Suitable methods for applying the liquid coating composition are, in particular, spraying, knife coating, thin-layer rotary casting or ring coating.
  • the liquid coating composition solidifies by a curing process, i. another reaction to the polymer.
  • the prepolymer contains a solvent
  • the solidification is assisted by the drying / evaporation of the solvent.
  • the material applied according to the invention is preferably of such a uniform, high-quality surface that grinding of the coating composition after solidification is not required.
  • the roller according to the invention for the printing process has excellent properties: high wear resistance, high chemical resistance, good ink acceptance, good ink delivery and good cleanability. These properties are also a result of the uncut surface, which thus has no pores and thus is also not susceptible to deposits from the printing process.
  • the invention also provides a rigid, temperature-controlled roller, which is obtainable by the process according to the invention.
  • the roller according to the invention is characterized by a roller core and a solidified, preferably non-polished, polyimide-based coating located thereon in a layer thickness of 1 to 1000 ⁇ m.
  • the coating of the roller according to the invention may have a modulus of elasticity in the range from 0.5 to 500 MPa.
  • the roll core has a roughness Rz of 0.1 to 100 microns, preferably 1 to 30 microns.
  • the application of the coating composition can lead to a reduction of the roughness.
  • the roughness of the solidified coating is less than the roughness of the roll core.
  • the invention also provides a method for adjusting a predetermined roughness of the roll, in which a roll core is coated with a defined roughness to obtain a roll with a defined roughness of the coating composition.
  • the roll according to the invention is suitable for internally tempered rolls and / or iridescent rolls.
  • Internal tempered rolls are used to remove heat from the rolling process to provide even pressure conditions.
  • "Oscillation” means that the roller is axially reciprocated during operation (i.e., in the rotating state) so as to achieve improved uniformity of the ink film.
  • the rolls with a coating based on polyimide or polyamide-imide are not only advantageous as internally tempered rolls, but also in their non-tempered form.
  • their production is facilitated by the fact that a grinding of the surface is not necessary.
  • the roughness of the coating can be adjusted by the choice of the roughness of the roll core and the coating thickness.
  • the rolls according to the invention are particularly suitable as rebar and Rilsan rolls.
  • Her preferred fields of application are in offset printing.
  • FIG. 1 shows an inking unit with a ductor roller 1, a lifting roller 2, distributor rollers 3, transfer rollers 4 and inking rollers 5.
  • a solution of polyamic acid is applied to a steel core by thin-layer rotary casting.
  • the material is heated so that a substantial proportion of the solvent evaporates. This results in the coating composition remaining stable after the end of the rotation. This is followed by a tempering of the roller at up to 250 ° C. Pressure tests with such a roller gave excellent results.
  • Example 1 In the method according to Example 1, a steel core with a roughness Rz of 15 microns was used. In a coating with a thickness of 80 microns according to Example 1 remains on the surface an Rz of about 2.2 microns. In a coating with a layer thickness of 30 microns still remains an Rz of about 5 microns, i. By choosing the coating thickness, the roughness of the coating can be adjusted.

Landscapes

  • Rolls And Other Rotary Bodies (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Paints Or Removers (AREA)
EP10788320.9A 2009-12-07 2010-12-07 Reiberwalzen Active EP2509797B1 (de)

Priority Applications (3)

Application Number Priority Date Filing Date Title
SI201030813T SI2509797T1 (sl) 2009-12-07 2010-12-07 Valji za deljenje
PL10788320T PL2509797T3 (pl) 2009-12-07 2010-12-07 Walce rozcierające
EP10788320.9A EP2509797B1 (de) 2009-12-07 2010-12-07 Reiberwalzen

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP09178216 2009-12-07
EP10788320.9A EP2509797B1 (de) 2009-12-07 2010-12-07 Reiberwalzen
PCT/EP2010/069046 WO2011069998A1 (de) 2009-12-07 2010-12-07 Reiberwalzen

Publications (2)

Publication Number Publication Date
EP2509797A1 EP2509797A1 (de) 2012-10-17
EP2509797B1 true EP2509797B1 (de) 2014-10-01

Family

ID=41786424

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10788320.9A Active EP2509797B1 (de) 2009-12-07 2010-12-07 Reiberwalzen

Country Status (17)

Country Link
US (1) US9308765B2 (ko)
EP (1) EP2509797B1 (ko)
JP (1) JP5758910B2 (ko)
KR (1) KR101757836B1 (ko)
CN (1) CN102686411B (ko)
AR (1) AR079307A1 (ko)
AU (1) AU2010330001B2 (ko)
BR (1) BR112012013770B1 (ko)
CA (1) CA2783324C (ko)
DK (1) DK2509797T3 (ko)
ES (1) ES2526255T3 (ko)
HK (1) HK1170987A1 (ko)
PL (1) PL2509797T3 (ko)
PT (1) PT2509797E (ko)
RU (1) RU2612566C2 (ko)
SI (1) SI2509797T1 (ko)
WO (1) WO2011069998A1 (ko)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7044316B2 (ja) * 2017-10-18 2022-03-30 富士機械工業株式会社 グラビア印刷機
CN110239202B (zh) * 2019-06-26 2023-06-23 云南卓印科技有限公司 一种平版印刷橡胶水辊及其制备方法

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4183298A (en) * 1977-12-23 1980-01-15 Roland Offsetmaschinenfabrik Faber & Schleicher Ag Water cooled ink roller for printing presses
DE3787895T2 (de) * 1987-10-05 1994-05-19 Kinyosha Kk Tintenrolle für druckpressen und verfahren zur herstellung.
WO1989005732A1 (en) * 1987-12-21 1989-06-29 Kinyosha Co., Ltd Ink roller for printing press and production thereof
JP2643187B2 (ja) * 1987-10-05 1997-08-20 株式会社金陽社 インキ装置のインキ受渡しロール及びその製造方法
US5061533A (en) * 1988-10-11 1991-10-29 Mitsubishi Rayon Company Ltd. Roll formed of carbon fiber composite material
JPH0717052B2 (ja) * 1991-07-05 1995-03-01 ボールドウィン プリンティング コントロールズ リミテッド 電子冷熱素子を利用して加熱または冷却されるシリンダまたはローラおよびその製造方法
DE4140048C2 (de) * 1991-12-05 1995-09-21 Roland Man Druckmasch Farbwerk einer Druckmaschine, insbesondere Bogenoffsetdruckmaschine
JP3318136B2 (ja) * 1994-12-01 2002-08-26 株式会社リコー 定着装置
EP0942833B1 (de) 1996-12-07 2001-07-18 WESTLAND GUMMIWERKE GmbH & Co. Walze für farbverarbeitung
DE19653911C2 (de) * 1996-12-21 2003-03-27 Roland Man Druckmasch Druckmaschinenwalze mit einer farbfreundlichen Beschichtung der Ballenfläche des Walzenkerns, insbesondere Farbwalze
JP4073345B2 (ja) * 2003-03-24 2008-04-09 富士フイルム株式会社 平版印刷方法および印刷装置
DE10328742B4 (de) * 2003-06-25 2009-10-29 Kba-Metronic Aktiengesellschaft Verfahren zum Aufbringen von Mitteln mit Flüssigkristallen auf Substrate
TWI461306B (zh) * 2006-07-19 2014-11-21 Boettcher Gmbh & Co Felix 隨機雷射處理之薄膜滾子
DE102006037615A1 (de) * 2006-08-10 2008-02-14 Felix Böttcher Gmbh & Co. Kg Gummiwalzen mit rauer Oberfläche
JP5334365B2 (ja) * 2006-10-23 2013-11-06 株式会社ミヤコシ オフセット印刷機の湿し水装置
JP2008143180A (ja) * 2006-12-07 2008-06-26 Heidelberger Druckmas Ag インキ装置の洗浄装置を備えた印刷機
DE102007062940A1 (de) 2007-12-21 2009-06-25 Weros Technology Gmbh Reiber- oder Übertragungswalze
US8384748B2 (en) * 2009-07-29 2013-02-26 Xerox Corporation Fabrication of improved aluminum rollers with low adhesion and ultra/super hydrophobicity and/or oleophobicity by electrospinning technique in solid ink-jet marking

Also Published As

Publication number Publication date
SI2509797T1 (sl) 2015-01-30
CA2783324A1 (en) 2011-06-16
RU2612566C2 (ru) 2017-03-09
CN102686411B (zh) 2017-01-18
US9308765B2 (en) 2016-04-12
DK2509797T3 (en) 2014-12-01
KR20120094088A (ko) 2012-08-23
AR079307A1 (es) 2012-01-18
KR101757836B1 (ko) 2017-07-26
RU2012128529A (ru) 2014-01-20
HK1170987A1 (en) 2013-03-15
CN102686411A (zh) 2012-09-19
PT2509797E (pt) 2015-01-05
AU2010330001B2 (en) 2014-09-04
BR112012013770A2 (pt) 2016-04-26
EP2509797A1 (de) 2012-10-17
CA2783324C (en) 2018-09-18
BR112012013770B1 (pt) 2020-04-14
AU2010330001A1 (en) 2012-06-21
WO2011069998A1 (de) 2011-06-16
JP2013512803A (ja) 2013-04-18
US20130029051A1 (en) 2013-01-31
ES2526255T3 (es) 2015-01-08
JP5758910B2 (ja) 2015-08-05
PL2509797T3 (pl) 2015-03-31

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