EP0703093B1 - Cylindre pour le dispositif de mouillage d'une machine à imprimer - Google Patents

Cylindre pour le dispositif de mouillage d'une machine à imprimer Download PDF

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Publication number
EP0703093B1
EP0703093B1 EP95112997A EP95112997A EP0703093B1 EP 0703093 B1 EP0703093 B1 EP 0703093B1 EP 95112997 A EP95112997 A EP 95112997A EP 95112997 A EP95112997 A EP 95112997A EP 0703093 B1 EP0703093 B1 EP 0703093B1
Authority
EP
European Patent Office
Prior art keywords
roller
layer
dampening
coating
outer coating
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.)
Expired - Lifetime
Application number
EP95112997A
Other languages
German (de)
English (en)
Other versions
EP0703093A1 (fr
Inventor
Werner Dr. Sondergeld
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.)
Manroland AG
Original Assignee
MAN Roland 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 MAN Roland Druckmaschinen AG filed Critical MAN Roland Druckmaschinen AG
Publication of EP0703093A1 publication Critical patent/EP0703093A1/fr
Application granted granted Critical
Publication of EP0703093B1 publication Critical patent/EP0703093B1/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
    • 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
    • B41N2207/04—Intermediate 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
    • B41N2207/14—Location or type of the layers in shells for rollers of printing machines characterised by macromolecular organic compounds

Definitions

  • the invention relates to a roller for a dampening system a printing press that can be used universally.
  • she is for example as a dampening roller, metering roller or dampening roller usable.
  • dampening rollers There are a variety of materials, coatings and surface structures known for dampening rollers. Dampers essentially show Rolls made of steel, rubber or textile covers. Partially the wettability of the roll surface is only possible with the help of hydrophilizing agents possible. Furthermore, from the EP 0 400 621 A2 discloses a dampening roller, the base body of which Ceramic / metal carbide is coated. Using special procedures (Laser / radioactive radiation) are deepened in the Coating introduced to increase the dampening solution guidance. A disadvantage of this type of roller is that when reducing or Elimination of alcohol as a dampening solution additive the wettability of the Rolls (dampening solution guide) decreases. Because stable dampening solution guidance color fluctuations can no longer be guaranteed (the color / water balance is disturbed) and registration difficulties.
  • a further dampening roller is known from DE 4 229 700 A1, which should have good hydrophilic properties.
  • the disadvantage is here that the silicon-metal surface has pores and must be sealed to avoid printing disadvantages, which is a complex manufacture.
  • a roller as a developing roller is in a toner processing Copier known.
  • the roller has an outer coating, which consists of TiCN, as well as a rough surface.
  • the roughness is for the amount of transported toner is important because otherwise the image quality will deteriorate.
  • a roller is functionally connected to a doctor blade known anilox roller for ink metering in a printing unit.
  • the roller has a multi-layer structure and is essentially made of one material temperature-dependent shape memory.
  • the grid structure of the roller has additionally a wear protection layer, which consists of TiN, TiAlN or TiCN.
  • the object of the invention is to provide a roller for a dampening unit develop, whose shell surface with a high wettability Has water or dampening solution. This object is achieved according to the invention solved according to the characteristic of the main claim. Training result from the subclaims.
  • a dampening roller of this type has a coating that consists of TiALN (titanium aluminum nitride) or TiCN (titanium carbonitride) and has a rough surface.
  • This coating according to the invention ensures an excellent hydrophilic property the roller.
  • a coating of this type is used to guide the dampening solution improved and the print quality increased. It will be a achieved a sufficiently thick and even dampening solution film, the proportion of alcohol is eliminated or only to a small extent ( ⁇ 6%) is required. The addition of alcohol or too Alcohol substitutes for dampening solutions can therefore be very low remain or are completely eliminated.
  • Intermediate layer can be applied. This intermediate layer exists preferably made of matt chrome.
  • a roller 1 is shown, the two roll neck 2nd has and a base body 3, the concentrically arranged Layers 4, 5 carries.
  • 2 is a cross section through the Base body 3 recognizable, on which an intermediate layer 4 and concentric for this purpose the outer layer 5 is arranged. 3 the outer layer 5 is directly concentric on the base body 3 arranged.
  • the intermediate layer is for the arrangement according to FIG. 2 4 as a matt chrome layer with a roughness of Rz 2.0 to 10.0, a hardness of about 900 HV and a layer density of about> 0.05 mm applied.
  • the outer coating 5 is a PVD hard material coating, consisting of TiALN or TiCN with a hardness of about 1500 to 3500 HV and a layer thickness of Arranged 2 to 10 ⁇ m.
  • the outer layer 5 TiALN or TiCN directly (without intermediate layer 4) concentrically on the Base body 3 attached with a hardness of 1500 - 3500 HV and a layer thickness of 2 - 10 ⁇ m.
  • the present coating exhibits very good wettability Fountain solution guide. Alcohol or alcohol substitutes are reduced to a small percentage or can be done entirely omitted. This has the advantage that it is harmful to health and the environment Medium reduced to an acceptable level or completely can be omitted.
  • the ink / fountain solution balance can can be set faster and remains during the printing process stable

Landscapes

  • Rotary Presses (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Rolls And Other Rotary Bodies (AREA)

Claims (4)

  1. Rouleau destiné à un dispositif de mouillage d'une machine d'impression, comportant une enveloppe disposée en une ou plusieurs couches sur un corps de base,
       caractérisé en ce que
       le revêtement extérieur (5) de l'enveloppe est en TiAlN ou TiCN, et possède une surface rugueuse.
  2. Rouleau selon la revendication 1,
       caractérisé en ce que
       le revêtement extérieur (5) en TiAlN ou TiCN est disposé de façon concentrique sur le corps de base (3).
  3. Rouleau selon les revendications 1 et 2,
       caractérisé en ce que
       une couche intermédiaire (4) en chrome mat est disposée de façon concentrique entre le revêtement extérieur (5) et le corps de base (3).
  4. Rouleau selon la revendication 1,
       caractérisé en ce que
       la couche extérieure (5) a une épaisseur de 2 à 10 µm et une dureté de 1 500 à 3 500 HV, ainsi qu'une rugosité Rz de 2 à 10 µm.
EP95112997A 1994-09-24 1995-08-18 Cylindre pour le dispositif de mouillage d'une machine à imprimer Expired - Lifetime EP0703093B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4434181 1994-09-24
DE4434181 1994-09-24

Publications (2)

Publication Number Publication Date
EP0703093A1 EP0703093A1 (fr) 1996-03-27
EP0703093B1 true EP0703093B1 (fr) 1998-04-22

Family

ID=6529116

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95112997A Expired - Lifetime EP0703093B1 (fr) 1994-09-24 1995-08-18 Cylindre pour le dispositif de mouillage d'une machine à imprimer

Country Status (3)

Country Link
EP (1) EP0703093B1 (fr)
AT (1) ATE165281T1 (fr)
DE (1) DE59501975D1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107206825A (zh) * 2015-04-14 2017-09-26 株式会社新克 凹印滚筒及其制造方法

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EA201400883A1 (ru) * 2012-02-09 2015-01-30 Коммонвелт Сайентифик Энд Индастриал Рисерч Органайзейшн Поверхность

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2432576B2 (de) * 1974-07-06 1976-04-15 Heidelberger Druckmaschinen Ag, 6900 Heidelberg Feuchtreiber in feuchtwerken
DE3503105A1 (de) * 1985-01-30 1986-07-31 Leybold-Heraeus GmbH, 5000 Köln Verfahren zum beschichten von maschinenteilen und werkzeugen mit hartstoffmaterial und durch das verfahren hergestellte maschinenteile und werkzeuge
US4893151A (en) * 1987-11-26 1990-01-09 Kabushiki Kaisha Toshiba Image developing apparatus
US5047116A (en) 1989-05-31 1991-09-10 Union Carbide Coatings Service Technology Corporation Method for producing liquid transfer articles
DE3938449A1 (de) * 1989-11-18 1991-05-23 Roland Man Druckmasch Druckwerk
DE4321183C2 (de) * 1992-07-09 2002-12-12 Heidelberger Druckmasch Ag Feuchtwerkswalze einer Druckmaschine
DE4229700C2 (de) * 1992-09-05 1997-02-13 Heidelberger Druckmasch Ag Feuchtwerkswalze für eine Druckmaschine sowie Verfahren zu ihrer Beschichtung

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107206825A (zh) * 2015-04-14 2017-09-26 株式会社新克 凹印滚筒及其制造方法

Also Published As

Publication number Publication date
ATE165281T1 (de) 1998-05-15
DE59501975D1 (de) 1998-05-28
EP0703093A1 (fr) 1996-03-27

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