EP0771267A1 - Systeme d'impression avec dispositif d'encrage court d'une rotative destinee a l'impression directe au moyen d'une plaque d'impression a plat "sans eau" - Google Patents

Systeme d'impression avec dispositif d'encrage court d'une rotative destinee a l'impression directe au moyen d'une plaque d'impression a plat "sans eau"

Info

Publication number
EP0771267A1
EP0771267A1 EP95924181A EP95924181A EP0771267A1 EP 0771267 A1 EP0771267 A1 EP 0771267A1 EP 95924181 A EP95924181 A EP 95924181A EP 95924181 A EP95924181 A EP 95924181A EP 0771267 A1 EP0771267 A1 EP 0771267A1
Authority
EP
European Patent Office
Prior art keywords
printing
waterless
unit
ink transfer
short inking
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
EP95924181A
Other languages
German (de)
English (en)
Other versions
EP0771267B1 (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 Albert 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 Albert AG filed Critical Koenig and Bauer Albert AG
Publication of EP0771267A1 publication Critical patent/EP0771267A1/fr
Application granted granted Critical
Publication of EP0771267B1 publication Critical patent/EP0771267B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F7/00—Rotary lithographic machines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F31/00—Inking arrangements or devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F31/00—Inking arrangements or devices
    • B41F31/26—Construction of inking rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F7/00—Rotary lithographic machines
    • B41F7/02—Rotary lithographic machines for offset printing
    • B41F7/12—Rotary lithographic machines for offset printing using two cylinders one of which serves two functions, e.g. as a transfer and impression cylinder in perfecting machines
    • 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

Definitions

  • the invention relates to a printing unit with a short inking unit of a rotary printing press according to the preamble of claim 1.
  • Printing units with short inking units of rotary offset printing presses in which ink on a paper web indirectly by means of an offset cylinder - the blanket cylinder - of a conventional, i.e. H. with planographic printing plate provided with dampening solution is transferred to a paper web are generally known.
  • the disadvantage here is that the dampening solution transferred to the paper causes dimensional changes in the paper.
  • the invention has for its object to provide a printing unit with a short inking unit for direct printing by means of a "waterless" planographic printing plate.
  • the forme cylinder with the soft "waterless” planographic printing plate takes over the function of the usual rubber cylinder, e.g. B. even pressure transmission even with rough papers. It is particularly advantageous that by eliminating the blanket cylinder there is only one ink transfer point between the planographic printing plate and the printing material, as a result of which there is less cleavage and squeezing away of the printing ink. As a result, thicker layers of ink can be transferred, which are otherwise only achieved with gravure or screen printing processes. In addition, the present printing unit without a blanket cylinder is much cheaper than comparable offset printing units.
  • Fig. 1 is a schematic representation of a printing unit according to the invention with short inking unit
  • FIG. 3 shows a section of a schematic section of a structured ink transfer roller
  • FIG. 4 shows a schematic illustration of a second embodiment variant of a printing unit according to the invention with a short inking unit
  • Fig. 5 is a schematic representation of a third embodiment of a printing unit according to the invention with a short inking unit.
  • a printing unit 2 consisting of two forme cylinders 3, 4, with the second forme cylinder 4 acting as an impression cylinder, is mounted in side frames 1 of a rotary printing press.
  • a "waterless” planographic printing plate 6 for direct printing is attached to the forme cylinders 3, 4 (FIG. 1).
  • This planographic printing plate 6 has a metal or plastic carrier 7, a rubber layer 8 applied to this metal carrier 7, a photosensitive resin layer 9 applied to this rubber layer 8 and a silicone rubber layer 11 applied to this photosensitive resin layer 9 (FIG. 2).
  • the planographic printing plate 6 is changed by known methods in such a way that that the photosensitive resin layer 9 forms ink-accepting, printing areas 12 and the silicone rubber layer 11 forms ink-repellent, non-printing areas 13.
  • the soft rubber layer 8 corresponds to an offset printing blanket.
  • a printing material 14, for example a paper web, is printed directly from the respective “waterless” planographic printing plate 6 between the forme cylinders 3, 4.
  • a short inking unit 16 consisting of a structured ink transfer roller 17 and a squeegee device 18, works together, which supplies the planographic printing plate 6 with printing ink 19.
  • a printing ink 19 which is suitable for "waterless” planographic printing and is mixed with release agent 21, for example silicone oil or resins modified with silicone, is used as printing ink 19.
  • the ink transfer roller 17 consists of a steel core 22, which may have journals.
  • This steel core 22 is provided on the circumference with a coating 23 made of wear-resistant, for example hard ceramic material, the z. B. is applied by spraying. This coating
  • webs 26 which can intersect, for example, or also run approximately parallel can.
  • These webs 26 are made of wear-resistant, hard-ceramic material and have a high affinity for the release agent 21, which is why, for example, silicon oxide, aluminum oxide or chromium oxide which has been impregnated with silicone oil or has been embedded in the silicone rubber or fluorosilicone rubber is used as the hard-ceramic material.
  • the depressions 24 are lined with a color-friendly coating 27, for example a quinonediazide polymer substance (FIG. 3).
  • the structured ink transfer roller 17 is supplied with the printing ink 19 mixed with the release agent 21.
  • This ink transfer roller 17 passes the printing ink 19 directly to the planographic printing plate 6, which inks the printing areas 12 of the planographic printing plate 6 with printing ink 19, while the release agent portion of the printing ink 19 is passed on to the non-printing areas 13 of the planographic printing plate 6.
  • ink transfer rollers can of course be arranged between the form cylinder 3 and the structured ink transfer roller 17.
  • two further ink transfer rollers 29, 31 can transfer printing ink 19 between the forme cylinder 3 and the structured ink transfer roller 17.
  • the one that is in contact with the structured ink transfer roller 17 Ink transfer roller 29 is provided with a soft coating 32, while the ink transfer roller 31 contacting the planographic printing plate 6 and ink transfer roller 29 has a hard coating 33 (FIG. 4).
  • two ink transfer rollers 36, 37 are arranged, each of which touches the “waterless” planographic printing plate 6 and the structured ink transfer roller 17.
  • the first ink transfer roller 36 has a soft, ink-friendly coating 38 and the second ink transfer roller 37 has a soft, release agent-friendly coating 39, for example silicone rubber or fluorosilicone rubber.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Printing Methods (AREA)
  • Printing Plates And Materials Therefor (AREA)

Abstract

L'invention vise à obtenir un système d'impression (2) qui permette d'imprimer directement sur un matériau (14) au moyen d'une plaque d'impression à plat (6) 'sans eau'. A cet effet, on utilise une plaque d'impression à plat pour imprimer le matériau et un dispositif d'encrage court (16, 28, 34) qui encre la plaque d'impression à plat.
EP95924181A 1994-07-14 1995-07-06 Systeme d'impression avec dispositif d'encrage court d'une rotative destinee a l'impression directe au moyen d'une plaque d'impression a plat "sans eau" Expired - Lifetime EP0771267B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4424915 1994-07-14
DE4424915 1994-07-14
PCT/DE1995/000887 WO1996002390A1 (fr) 1994-07-14 1995-07-06 Systeme d'impression avec dispositif d'encrage court d'une rotative destinee a l'impression directe au moyen d'une plaque d'impression a plat 'sans eau'

Publications (2)

Publication Number Publication Date
EP0771267A1 true EP0771267A1 (fr) 1997-05-07
EP0771267B1 EP0771267B1 (fr) 1998-04-15

Family

ID=6523178

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95924181A Expired - Lifetime EP0771267B1 (fr) 1994-07-14 1995-07-06 Systeme d'impression avec dispositif d'encrage court d'une rotative destinee a l'impression directe au moyen d'une plaque d'impression a plat "sans eau"

Country Status (8)

Country Link
US (1) US5778775A (fr)
EP (1) EP0771267B1 (fr)
JP (1) JP2846124B2 (fr)
CN (1) CN1066681C (fr)
BR (1) BR9508278A (fr)
DE (1) DE59501927D1 (fr)
RU (1) RU2156694C2 (fr)
WO (1) WO1996002390A1 (fr)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6006665A (en) * 1997-10-30 1999-12-28 Didde Web Press Corporation Pliable anilox roller
DE19826505A1 (de) * 1998-06-13 1999-12-16 Pbe Papierbeschichtung Und Ent Verfahren und Vorrichtung zum Bedrucken von Oberflächen
DE19901243A1 (de) * 1999-01-14 2000-07-20 Heidelberger Druckmasch Ag Dosierbare Rasterwalze in einer Rotationsdruckmaschine
DE10144563A1 (de) * 2001-09-11 2003-03-27 Heidelberger Druckmasch Ag Druckmaschine und Verfahren zum Betreiben eines Farbwerks
DE50210051D1 (de) * 2001-11-22 2007-06-06 Koenig & Bauer Ag Verfahren zum Betrieb eines Druckwerkes
EP1410923B1 (fr) * 2002-10-17 2006-08-09 Hell Gravure Systems GmbH Procédé de production d'une forme d'impression pour la rotogravure
ES2252619T3 (es) * 2003-12-19 2006-05-16 KOENIG & BAUER AKTIENGESELLSCHAFT Maquina impresora con al menos un mecanismo impresor, con tramas lineales en su rodillo reticulado.
CN102311232B (zh) * 2010-07-09 2017-05-17 深圳市德厚科技有限公司 纳米节能隔热涂膜玻璃的制作方法和玻璃滚涂机
US20120291642A1 (en) * 2011-05-16 2012-11-22 Xerox Corporation Methods, apparatus, and systems for direct inking to a digital offset plate
CN104185819B (zh) 2012-04-30 2018-01-23 惠普发展公司，有限责任合伙企业 打印系统，打印方法、制造打印系统的方法以及充电辊
US9423717B2 (en) 2012-10-15 2016-08-23 Hewlett-Packard Development Company, L.P. Charge roller for electrographic printer
CN104786641B (zh) * 2015-04-30 2017-07-21 谢乐天 一种涂布印刷机构
KR101897619B1 (ko) * 2016-04-22 2018-09-12 창원대학교 산학협력단 인쇄장치 및 그 작동 방법
RU2738864C1 (ru) * 2020-06-01 2020-12-17 Владимир Николаевич Токарев Печатная машина
CN113212018A (zh) * 2021-04-29 2021-08-06 惠州大唐伟业电子有限公司 一种手机玻璃盖板的高清丝印工艺

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3613578A (en) * 1969-08-18 1971-10-19 Pamarco Inc Ink metering roll for use intermediate a fountain roll and a printing roll
US3587463A (en) * 1970-05-18 1971-06-28 Wallace H Granger Simplified circulating inking system for rotary newspaper printing press
US4208963A (en) * 1978-04-18 1980-06-24 Dahlgren Manufacturing Company Newspaper printing system
US4407196A (en) * 1980-02-29 1983-10-04 American Newspaper Publishers Association Method of enhancing inking in offset presses
DE3170113D1 (en) * 1980-07-14 1985-05-30 Toray Industries Dry planographic printing plate for direct printing
EP0076905B2 (fr) * 1981-10-10 1991-05-02 BASF Lacke + Farben AG Procédé d'impression à plat
FR2526370B1 (fr) * 1982-05-10 1986-01-17 Mourrellon Georges Procede et dispositif d'encrage pour machine d'imprimerie
DE3706011A1 (de) * 1987-02-25 1988-09-08 Roland Man Druckmasch Kurzfarbwerk
DE4101797A1 (de) * 1990-03-22 1991-09-26 Frankenthal Ag Albert Kurzfarbwerk fuer eine rollenrotationsdruckmaschine
US5272971A (en) * 1992-08-14 1993-12-28 Electro Sprayer Systems, Inc. Ink temperature control system for waterless lithographic printing

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9602390A1 *

Also Published As

Publication number Publication date
CN1152892A (zh) 1997-06-25
CN1066681C (zh) 2001-06-06
RU2156694C2 (ru) 2000-09-27
JP2846124B2 (ja) 1999-01-13
EP0771267B1 (fr) 1998-04-15
DE59501927D1 (de) 1998-05-20
US5778775A (en) 1998-07-14
JPH09507800A (ja) 1997-08-12
WO1996002390A1 (fr) 1996-02-01
BR9508278A (pt) 1997-10-28

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