EP0351504A3 - Electrostatic printing aid - Google Patents

Electrostatic printing aid Download PDF

Info

Publication number
EP0351504A3
EP0351504A3 EP89108050A EP89108050A EP0351504A3 EP 0351504 A3 EP0351504 A3 EP 0351504A3 EP 89108050 A EP89108050 A EP 89108050A EP 89108050 A EP89108050 A EP 89108050A EP 0351504 A3 EP0351504 A3 EP 0351504A3
Authority
EP
European Patent Office
Prior art keywords
impression roller
shaft
electrostatic printing
relation
printing aid
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
EP89108050A
Other languages
German (de)
Other versions
EP0351504B1 (en
EP0351504A2 (en
Inventor
Franz Knopf
Ernst A. Hahne
Hermann Kunzig
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.)
Eltex Elektrostatik GmbH
Original Assignee
Eltex Elektrostatik GmbH
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 Eltex Elektrostatik GmbH filed Critical Eltex Elektrostatik GmbH
Priority to AT89108050T priority Critical patent/ATE77790T1/en
Publication of EP0351504A2 publication Critical patent/EP0351504A2/en
Publication of EP0351504A3 publication Critical patent/EP0351504A3/en
Application granted granted Critical
Publication of EP0351504B1 publication Critical patent/EP0351504B1/en
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
    • B41F9/00—Rotary intaglio printing presses
    • B41F9/001—Heliostatic printing
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S101/00—Printing
    • Y10S101/37—Printing employing electrostatic force

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Printing Methods (AREA)
  • Rotary Presses (AREA)
  • Photoreceptors In Electrophotography (AREA)
  • Developing Agents For Electrophotography (AREA)
  • Coils Of Transformers For General Uses (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)

Abstract

An impression roller (5) of a printing unit equipped with an electrostatic printing aid has on its insulation surface a conductive coating (10), above which a further, limitedly conductive coating (11) is arranged. Arranged fixedly in relation to the printing unit, concentrically relative to the electrically earthed axle or shaft (6) of the impression roller (5) and next to the latter is a primary spool (17) and mounted fixedly in relation to the impression roller (5) concentrically to the electrically earthed shaft (6) of the impression roller (5) on one of its front sides (12) is a secondary spool (14). The one connection of the secondary spool (14) or shaft (6) and the other connected [sic] to the coating (10) via a rectifier circuit (22). <IMAGE>
EP89108050A 1988-07-20 1989-05-03 Electrostatic printing aid Expired - Lifetime EP0351504B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89108050T ATE77790T1 (en) 1988-07-20 1989-05-03 ELECTROSTATIC PRINTING AID.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3824714 1988-07-20
DE3824714A DE3824714C1 (en) 1988-07-20 1988-07-20

Publications (3)

Publication Number Publication Date
EP0351504A2 EP0351504A2 (en) 1990-01-24
EP0351504A3 true EP0351504A3 (en) 1990-03-21
EP0351504B1 EP0351504B1 (en) 1992-07-01

Family

ID=6359180

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89108050A Expired - Lifetime EP0351504B1 (en) 1988-07-20 1989-05-03 Electrostatic printing aid

Country Status (5)

Country Link
US (1) US5044275A (en)
EP (1) EP0351504B1 (en)
JP (1) JP2526289B2 (en)
AT (1) ATE77790T1 (en)
DE (2) DE3824714C1 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2677301B1 (en) * 1991-06-05 1993-12-24 Mira Sarl ELECTROSTATIC ASSISTANCE DEVICE FOR A PRINTING MACHINE ESPECIALLY HELIOGRAVURE.
US5178071A (en) * 1992-01-23 1993-01-12 American Roller Company Impression roller and method of preparation
DE9218818U1 (en) * 1992-02-18 1995-08-31 Eltex Elektrostatik Gmbh Impressionist
DE4408615C2 (en) * 1994-03-15 1996-01-11 Roland Man Druckmasch Cup roller within an application unit of a rotary printing press
DE4443368A1 (en) * 1994-12-06 1996-06-13 Pogatzki Volkmar W Dr Rotary intaglio printing press with voltage induced on pressure roller
ATE213997T1 (en) † 1997-11-27 2002-03-15 Spengler Electronic Ag ELECTROSTATIC ARRANGEMENT FOR A GRAPHIC AND FLEXO PRINTING UNIT
US6314879B1 (en) * 1999-05-12 2001-11-13 Hurletron Incorporated Flexographic printing apparatus
US6644196B2 (en) * 2001-11-05 2003-11-11 Heidelberger Druckmaschinen Ag Electrorheological inker
DE102008006269B3 (en) 2008-01-25 2009-05-14 Eltex-Elektrostatik Gmbh Impression roller and its use

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4099462A (en) * 1973-06-25 1978-07-11 Hurletron Altair, Inc. Alternating current energized printing system utilizing a dielectric covered resilient impression roller

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2558900A (en) * 1945-03-26 1951-07-03 William C Huebner Electrostatic printing method and apparatus
US2547706A (en) * 1945-08-06 1951-04-03 Selective discharge control for inks
US3370546A (en) * 1964-06-05 1968-02-27 Agfa Ag Selective printing machine employing magnetic fields
GB1169566A (en) * 1966-11-24 1969-11-05 Crosfield Electronics Ltd Improvements relating to Printing Processes and Apparatus
US3661081A (en) * 1968-11-01 1972-05-09 Hurletron Controls Division Process of flexographic printing utilizing an electrical field
CH619400A5 (en) * 1977-03-25 1980-09-30 Franz Knopf
DE3302091A1 (en) * 1982-03-25 1983-10-13 Sulzer-Escher Wyss AG, 8023 Zürich PRINT ROLLER OF A ROTATION PRINTING MACHINE
DE3390458T1 (en) * 1983-02-07 1985-04-18 Gravure Research Institute, Inc. (n.d.Ges.d. Staates Illinois), Port Washington, N.Y. Improved method and device for directly acting on the surface of a pressure roller of an electrostatic gravure press
DE3314454C2 (en) * 1983-04-21 1985-05-30 Albert-Frankenthal Ag, 6710 Frankenthal Impression of a rotogravure printing press

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4099462A (en) * 1973-06-25 1978-07-11 Hurletron Altair, Inc. Alternating current energized printing system utilizing a dielectric covered resilient impression roller

Also Published As

Publication number Publication date
DE3824714C1 (en) 1990-04-12
JP2526289B2 (en) 1996-08-21
EP0351504B1 (en) 1992-07-01
EP0351504A2 (en) 1990-01-24
DE58901766D1 (en) 1992-08-06
ATE77790T1 (en) 1992-07-15
JPH02117832A (en) 1990-05-02
US5044275A (en) 1991-09-03

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