EP0695636B1 - Méthode et dispositif pour l'encrage d'une plaque lithographique "non-aqueuse" - Google Patents

Méthode et dispositif pour l'encrage d'une plaque lithographique "non-aqueuse" Download PDF

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Publication number
EP0695636B1
EP0695636B1 EP95110528A EP95110528A EP0695636B1 EP 0695636 B1 EP0695636 B1 EP 0695636B1 EP 95110528 A EP95110528 A EP 95110528A EP 95110528 A EP95110528 A EP 95110528A EP 0695636 B1 EP0695636 B1 EP 0695636B1
Authority
EP
European Patent Office
Prior art keywords
release agent
roller
printing plate
waterless
planographic printing
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
EP95110528A
Other languages
German (de)
English (en)
Other versions
EP0695636A2 (fr
EP0695636A3 (fr
Inventor
Karl Robert Schäfer
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.)
Koenig and Bauer AG
Original Assignee
Koenig and Bauer 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 Koenig and Bauer AG filed Critical Koenig and Bauer AG
Publication of EP0695636A2 publication Critical patent/EP0695636A2/fr
Publication of EP0695636A3 publication Critical patent/EP0695636A3/fr
Application granted granted Critical
Publication of EP0695636B1 publication Critical patent/EP0695636B1/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
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M1/00—Inking and printing with a printer's forme
    • B41M1/06—Lithographic printing
    • B41M1/08—Dry printing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F31/00—Inking arrangements or devices

Definitions

  • the invention relates to a method and Device for coloring a "waterless" Planographic printing plate according to the preamble of the claim 1.
  • the invention is based on the object Process for coloring a so-called “waterless” To create a planographic printing plate in which conventional d. H. not adapted to the "waterless” planographic printing Printing inks can be used.
  • the advantages that can be achieved with the invention are, in particular, that conventional printing inks can be used and therefore ink transfer difficulties due to release agents in the ink feed roller train are avoided. It is particularly advantageous that an amount of release agent can be metered in and thus adapted to different operating states of a rotary offset printing press during production. With this release agent, the affinity of the ink-repellent, non-printing areas of the planographic printing plate for the printing ink is reduced. The constant supply of release agent in the finest dosage protects the color-repellent, non-printing areas of the planographic printing plate, which are slightly above the level of the printing areas, thus reducing wear. In addition, the used release agent is transported back and thus cleaned the planographic printing plate.
  • an offset printing unit 2 is mounted in a known manner, consisting of a rubber cylinder 3, a second rubber cylinder 4, which acts as an impression cylinder and a plate cylinder 6.
  • a paper web 7 is printed between the rubber cylinders 3, 4.
  • On the plate cylinder 6 a known, prepared for "waterless" planographic printing plate 8 is attached.
  • This planographic printing plate 8 has ink-accepting, printing areas 9 and ink-repellent, non-printing areas 11, which are slightly above the level of the printing areas 9.
  • an inking unit 12 interacts with an ink-guiding roller train 13 and a release agent applicator 14 with a release agent-guiding roller train 16.
  • a short inking unit 19 consisting of a soft application roller 21, an anilox roller 22 and a doctor blade device 23, preferably a chamber doctor blade, is used as the inking unit 12. Coatings 24, 26 of the soft application roller 21 and the anilox roller 22 are color-friendly.
  • the release agent application unit 14 is designed as a short application unit 27 with a soft release agent application roller 28, an anilox roller 29 and a doctor blade device 31, preferably a chambered doctor blade, of the release agent source (FIG. 1).
  • the release agent application roller 28 is provided with a soft, release agent-friendly coating 32, for example silicone rubber or fluorosilicone rubber.
  • the anilox roller 29 is also equipped with a release agent-friendly coating 33, for example silicone rubber or fluorosilicone rubber and / or silicon oxide.
  • Printing ink 17 or release agent 18, for example silicone oil is applied to the anilox rollers 22, 29 by means of the doctor devices 23, 31.
  • the printing ink 17 or the release agent 18 is transferred directly from the anilox rollers 22, 29 to the planographic printing plate 8 via the application rollers 21, 28.
  • the non-printing areas 11 of the planographic printing plate 8 are wetted with release agent 18 and the printing areas 9 of the planographic printing plate 8 with printing ink 17.
  • conventional inking units 34 can also be used.
  • a conventional inking unit 34 consists of two inking rollers 36, 37 abutting the plate cylinder 6, which are connected to an inking cylinder 38.
  • An ink duct 44 feeds the film roller 43 to printing ink 17 located in an ink fountain 46. All rollers 36 to 44 are provided with color-friendly coatings (e.g. rubber, Rilsan).
  • the release agent application unit 14 can be designed as a spray application unit 47 (FIG. 2).
  • the release agent application roller 48 is connected to a release agent distribution cylinder 49. Release agent 18 is applied to this release agent distribution cylinder 49 by means of a spray mechanism 51, the release agent source, which is not described in detail.
  • FIGS. 3 and 4 show FIGS. 3 and 4 in the form a brush applicator 52 and one Filmetzwerkes 53.
  • the brush application unit 52 consists of a release agent application roller 54, a release agent distribution cylinder 56, one Release agent box roller 57 and a brush roller 58.
  • the elements of the film applicator 53 are Release agent application roller 59, release agent distribution cylinder 61 and release agent ductor 62.
  • FIG. 5 shows an example corresponding to FIG. 1 for an indirect supply of the release agent 18 to the "waterless" planographic printing plate 8.
  • a release agent application roller 63 of a short application unit 64 lies against the soft ink application roller 21 of the short inking unit 12 and transfers release agent 18 to this ink application roller 21. From this ink application roller 21, which now carries ink and release agent, the printing ink 17 and the release agent 18 come together the "waterless" planographic printing plate 8 transferred.
  • the planographic printing plate 8 is fed indirectly from the release agent application roller 63 release agent 18.
  • the release agent application roller 63 is provided with a hard, release agent-friendly coating 66, for example silicon oxide, and is designed as an anilox roller which interacts with the doctor device 31.
  • All coatings of the rollers described Application units 14 are release agent-friendly and can soft z.
  • B. made of silicone or fluorosilicone rubber or hard z.
  • the number of individual rolls of Release agent application units 14 can of course be variable be.
  • the release agent application unit 14 can of course also be used be designed to be adjustable and therefore no Release agent 18 applied.
  • the "waterless" Planographic printing plate 8 can now by means of the inking unit 12 printing ink, that of the "waterless” planographic printing plate 8 is adapted to be supplied.

Landscapes

  • Printing Methods (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)

Claims (7)

  1. Méthode pour l'encrage d'une plaque lithographique "non-aqueuse" (8) alimentée en encre d'impression (17) par l'intermédiaire d'un mécanisme d'encrage (12), caractérisée par le fait que l'agent séparateur (18) non-aqueux, mouilleur des zones non-imprimantes (11) de la plaque lithographique (8), est acheminé directement ou indirectement vers la plaque lithographique "non-aqueuse" (8) par l'intermédiaire d'un mécanisme d'application d'agent séparateur (14).
  2. Méthode selon la revendication 1 caractérisée par le fait que l'agent séparateur (18) utilisé est de l'huile silicone.
  3. Méthode pour l'encrage d'une plaque lithographique "non-aqueuse" (8) d'une rotative offset comportant un mécanisme d'encrage (12) affecté à la plaque lithographique (8), caractérisée par le fait qu'un deuxième train de rouleaux (16), un mécanisme d'application (14) d'agent séparateur (18) non-aqueux, mouilleur des zones non-imprimantes (11) de la plaque lithographique (8), composé d'au moins un rouleau applicateur d'agent séparateur (28 ; 48 ; 54 ; 59 ; 63) et d'au moins une source d'agent séparateur (31 ; 51 ; 62), est disposé en contact avec la plaque lithographique "non-aqueuse" ou avec un rouleau du mécanisme d'encrage (12), les rouleaux conducteurs d'agent séparateur étant pourvus d'un revêtement respectueux de l'agent séparateur (32 ; 33 ; 66).
  4. Dispositif selon la revendication 3 caractérisé par le fait que le revêtement respectueux de l'agent séparateur (32 ; 33 ; 66) est en caoutouc silicone, caouchouc fluorosilicone ou oxyde de silicium.
  5. Dispositif selon la revendication 3 caractérisé par le fait que le mécanisme d'application d'agent séparateur (14) est composé d'un mécanisme d'application court (27) comportant au moins un rouleau applicateur (28), un rouleau distributeur (29) ainsi qu'un dispositif racleur (31).
  6. Dispositif selon la revendication 3 caractérisé par le fait que le mécanisme d'application d'agent séparateur (14) est composé d'un mécanisme d'application par pulvérisation (47) comportant au moins un rouleau applicateur d'agent séparateur (48), au moins un rouleau de transfert d'agent séparateur (49) ainsi qu'un mécanisme de pulvérisation (51).
  7. Dispositif selon la revendication 3 caractérisé par le fait que le mécanisme d'application d'agent séparateur (14) est composé d'un mécanisme d'application par brosse (52) comportant au moins un rouleau applicateur d'agent séparateur (54), au moins un cylindre de transfert d'agent séparateur (56), un rouleau encrier d'agent séparateur (57) ainsi qu'un rouleau à brosse (58).
EP95110528A 1994-07-14 1995-07-06 Méthode et dispositif pour l'encrage d'une plaque lithographique "non-aqueuse" Expired - Lifetime EP0695636B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4424891 1994-07-14
DE4424891A DE4424891C2 (de) 1994-07-14 1994-07-14 Verfahren und Vorrichtung zur Durchführung dieses Verfahrens zum Einfärben einer "wasserlosen" Flachdruckplatte

Publications (3)

Publication Number Publication Date
EP0695636A2 EP0695636A2 (fr) 1996-02-07
EP0695636A3 EP0695636A3 (fr) 1997-09-24
EP0695636B1 true EP0695636B1 (fr) 1999-10-13

Family

ID=6523162

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95110528A Expired - Lifetime EP0695636B1 (fr) 1994-07-14 1995-07-06 Méthode et dispositif pour l'encrage d'une plaque lithographique "non-aqueuse"

Country Status (4)

Country Link
US (1) US5676053A (fr)
EP (1) EP0695636B1 (fr)
JP (1) JP3090249B2 (fr)
DE (1) DE4424891C2 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4438246C1 (de) * 1994-10-26 1995-12-07 Metronic Geraetebau Druckeinrichtung zum Bedrucken von Compact-Discs (CD)
DE19732497B4 (de) 1997-07-29 2005-08-11 Man Roland Druckmaschinen Ag Kurzfarbwerk in einem Druckwerk einer Rotationsdruckmaschine
DE19933438B4 (de) * 1999-07-16 2004-07-08 Man Roland Druckmaschinen Ag Druckmaschine mit nicht am Druck-/Lackierprozess beteiligten Druck-/Lackwerken
DE10039279A1 (de) * 1999-09-09 2001-03-15 Heidelberger Druckmasch Ag Walze für Druckmaschinen
US6881533B2 (en) * 2003-02-18 2005-04-19 Kodak Polychrome Graphics Llc Flexographic printing plate with ink-repellent non-image areas
DE102008061735A1 (de) * 2008-12-11 2010-06-17 Weros Technology Gmbh Druckverfahren, insbesondere Offset-Druckverfahren, und Trennmittel für dieses

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4724764B1 (en) * 1983-05-11 1994-09-20 Baldwin Technology Corp Dampening system
JPH0789207A (ja) * 1993-09-24 1995-04-04 Dainippon Ink & Chem Inc 水無しオフセット輪転印刷方法

Also Published As

Publication number Publication date
JP3090249B2 (ja) 2000-09-18
EP0695636A2 (fr) 1996-02-07
EP0695636A3 (fr) 1997-09-24
US5676053A (en) 1997-10-14
DE4424891A1 (de) 1996-01-18
DE4424891C2 (de) 1997-04-17
JPH08174986A (ja) 1996-07-09

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