EP0985530A3 - Ink unit having an ink forme roller for a reduction of the mottling ink - Google Patents

Ink unit having an ink forme roller for a reduction of the mottling ink Download PDF

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Publication number
EP0985530A3
EP0985530A3 EP99114183A EP99114183A EP0985530A3 EP 0985530 A3 EP0985530 A3 EP 0985530A3 EP 99114183 A EP99114183 A EP 99114183A EP 99114183 A EP99114183 A EP 99114183A EP 0985530 A3 EP0985530 A3 EP 0985530A3
Authority
EP
European Patent Office
Prior art keywords
ink
inking
plate cylinder
inking roller
roller
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
EP99114183A
Other languages
German (de)
French (fr)
Other versions
EP0985530B1 (en
EP0985530B2 (en
EP0985530A2 (en
Inventor
Edward Ellis Urguhart
James Brian Vrotacoe
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.)
Goss International Americas LLC
Original Assignee
Heidelberger 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
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Application filed by Heidelberger Druckmaschinen AG filed Critical Heidelberger Druckmaschinen AG
Publication of EP0985530A2 publication Critical patent/EP0985530A2/en
Publication of EP0985530A3 publication Critical patent/EP0985530A3/en
Publication of EP0985530B1 publication Critical patent/EP0985530B1/en
Application granted granted Critical
Publication of EP0985530B2 publication Critical patent/EP0985530B2/en
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
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F31/00—Inking arrangements or devices
    • B41F31/26—Construction of inking rollers

Landscapes

  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Printing Plates And Materials Therefor (AREA)
  • Accessory Devices And Overall Control Thereof (AREA)
  • Cleaning In Electrography (AREA)
  • Rotary Presses (AREA)

Abstract

Die vorliegende Erfindung betrifft ein Farbwerk zum Verringern des Perlens der Farbfeststoffe in Offsetdruckmaschinen. Eine oder mehrere Farbauftragswalzen (F1, F2 oder F3) mit einer harten Außenschicht (21) aus einem Elastomer, deren Härte zwischen ca. 50 und 100 Shore A, vorzugsweise zwischen 60 und 90 Shore A beträgt, übertragen Farbe auf den Plattenzylinder (P). Durch den Einsatz einer Farbauftragswalze (F1, F2 oder F3) dieser Art wird ein gleichmäßigerer Farbauftrag auf den Plattenzylinder, von dort auf den Gummituchzylinder und von diesem auf die zu bedruckende Bahn ermöglicht. Ist mehr als eine Farbauftragswalze (F1, F2 oder F3) vorgesehen, ist vorzugsweise mindestens die in Drehrichtung des Plattenzylinders letzte Farbauftragswalze (F3) eine Farbauftragswalze mit harter Außenschicht (21) aus einem Elastomer. Ein weiterer Aspekt der vorliegenden Erfindung besteht darin, daß die Farbauftragswalzen (F1, F2 oder F3) entlang ihrer axialen Länge eine konvexe Form aufweisen, so daß der Durchmesser (d2) in der axialen Mitte größer ist als der Durchmesser (d1) an den Enden der Farbauftragswalzen (F1, F2 oder F3), so daß ein korrekter Kontakt zwischen der Farbauftragswalze (F1, F2 oder F3) und dem Plattenzylinder gewährleistet ist.

Figure 00000001
The present invention relates to an inking unit for reducing the beading of ink solids in offset printing machines. One or more inking rollers (F 1 , F 2 or F 3 ) with a hard outer layer (21) made of an elastomer, the hardness of which is between approximately 50 and 100 Shore A, preferably between 60 and 90 Shore A, transfer ink to the plate cylinder (P). The use of an inking roller (F 1 , F 2 or F 3 ) of this type enables a more uniform ink application to the plate cylinder, from there to the blanket cylinder and from there to the web to be printed. If more than one inking roller (F 1 , F 2 or F 3 ) is provided, at least the inking roller (F 3 ) last in the direction of rotation of the plate cylinder is preferably an inking roller with a hard outer layer (21) made of an elastomer. Another aspect of the present invention is that the inking rollers (F 1 , F 2 or F 3 ) have a convex shape along their axial length so that the diameter (d 2 ) in the axial center is larger than the diameter (i.e. 1 ) at the ends of the inking rollers (F 1 , F 2 or F 3 ), so that correct contact between the inking roller (F 1 , F 2 or F 3 ) and the plate cylinder is ensured.
Figure 00000001
EP99114183A 1998-08-10 1999-07-22 Ink unit having an ink forme roller for a reduction of the mottling ink Expired - Lifetime EP0985530B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/131,564 US6098540A (en) 1998-08-10 1998-08-10 Apparatus and method for reducing mottling in printing presses
US131564 1998-08-10

Publications (4)

Publication Number Publication Date
EP0985530A2 EP0985530A2 (en) 2000-03-15
EP0985530A3 true EP0985530A3 (en) 2000-10-04
EP0985530B1 EP0985530B1 (en) 2003-09-24
EP0985530B2 EP0985530B2 (en) 2009-01-14

Family

ID=22450006

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99114183A Expired - Lifetime EP0985530B2 (en) 1998-08-10 1999-07-22 Ink unit having an ink forme roller for a reduction of the mottling ink

Country Status (5)

Country Link
US (1) US6098540A (en)
EP (1) EP0985530B2 (en)
JP (1) JP2000052625A (en)
CN (1) CN1131780C (en)
DE (2) DE19934395B4 (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19911180C2 (en) * 1999-03-12 2001-02-01 Koenig & Bauer Ag Printing unit for a rotary printing machine
US7055428B2 (en) * 2002-04-11 2006-06-06 Koenig & Bauer Aktiengesellschaft Characterization, determination of a characteristic number and selection of suitable dressings on cylinders of a printing press
WO2005118293A1 (en) * 2004-05-21 2005-12-15 Demaxz, L.L.C. Apparatus for printing on substrates of timber or synthetic material
CN1939721B (en) * 2005-09-27 2010-12-15 海德堡印刷机械股份公司 Press temperature controlling method
DE102006015481B4 (en) * 2006-01-04 2009-07-09 Koenig & Bauer Aktiengesellschaft Roller of a printing machine
DE102006011477B4 (en) * 2006-03-13 2007-12-27 Koenig & Bauer Aktiengesellschaft Printing unit with a split form cylinder
CN101045367A (en) * 2006-03-28 2007-10-03 海德堡印刷机械股份公司 Overlapping curve roller printing device
DE102006015490B4 (en) * 2006-04-03 2009-11-12 Koenig & Bauer Aktiengesellschaft Web-fed printing machine with a film inking unit
DE102006015482B4 (en) * 2006-04-03 2010-06-24 Koenig & Bauer Aktiengesellschaft Roller of a printing machine
DE102006046521A1 (en) * 2006-09-29 2008-04-03 Man Roland Druckmaschinen Ag Rotary offset printing station has at least one cylinder, e.g. the transfer cylinder, with segments of different diameters along the body axial length to compensate for cylinder bending
US8726807B2 (en) * 2007-06-04 2014-05-20 Goss International Americas, Inc. Smooth roller with low line load and methods
US20120279407A1 (en) * 2011-05-06 2012-11-08 Phoenix Machinery Paper coater apparatus and process

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE6910823U (en) * 1969-03-17 1969-07-03 Maschf Augsburg Nuernberg Ag FILM ROLLER OR THE LIKE FOR INK UNITS OF ROTARY PRINTING MACHINES
US3828674A (en) * 1972-03-01 1974-08-13 Houston Chronicle Publishing C Printing press ink suppression apparatus
EP0279295A2 (en) * 1987-02-19 1988-08-24 Albert-Frankenthal AG Inking unit
EP0406737A2 (en) * 1989-07-06 1991-01-09 M.A.N.-ROLAND Druckmaschinen Aktiengesellschaft Offset printing unit
US5113760A (en) * 1987-12-21 1992-05-19 Kinyosha Co., Ltd. Ink roller for printing machine
DE4103742A1 (en) * 1991-02-07 1992-08-13 Roland Man Druckmasch Ink or moisture applying roller for rotary printing machine - is bent by rotating eccentric inner shaft to ensure full contact with transfer roller
DE29612105U1 (en) * 1996-07-11 1996-08-22 Man Roland Druckmaschinen Ag, 63069 Offenbach Roller in a printing press

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH355786A (en) * 1958-01-24 1961-07-31 Winkler Fallert & Co Maschf Machine for printing paper and other materials in webs using gravure rollers
JPS5549295A (en) * 1978-10-05 1980-04-09 Toray Ind Inc Ink roller for dry lithographic printing
US5341733A (en) † 1990-03-03 1994-08-30 Albert Frankenthal Aktiengesellschaft Short inking apparatus for a rotary press
JPH0422980A (en) * 1990-05-18 1992-01-27 Canon Inc Image forming device
US5816150A (en) * 1993-02-24 1998-10-06 Sarda; Jean Lucien Dampening units of offset printing presses
DE9310713U1 (en) † 1993-07-17 1993-09-02 Man Roland Druckmaschinen Ag, 63069 Offenbach Inking roller
DE4436973C2 (en) † 1993-12-21 2003-06-26 Heidelberger Druckmasch Ag Blanket with varying profile and process for its manufacture
JP2951542B2 (en) * 1994-06-30 1999-09-20 日本ボールドウィン株式会社 Roller with cooling device

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE6910823U (en) * 1969-03-17 1969-07-03 Maschf Augsburg Nuernberg Ag FILM ROLLER OR THE LIKE FOR INK UNITS OF ROTARY PRINTING MACHINES
US3828674A (en) * 1972-03-01 1974-08-13 Houston Chronicle Publishing C Printing press ink suppression apparatus
EP0279295A2 (en) * 1987-02-19 1988-08-24 Albert-Frankenthal AG Inking unit
US5113760A (en) * 1987-12-21 1992-05-19 Kinyosha Co., Ltd. Ink roller for printing machine
EP0406737A2 (en) * 1989-07-06 1991-01-09 M.A.N.-ROLAND Druckmaschinen Aktiengesellschaft Offset printing unit
DE4103742A1 (en) * 1991-02-07 1992-08-13 Roland Man Druckmasch Ink or moisture applying roller for rotary printing machine - is bent by rotating eccentric inner shaft to ensure full contact with transfer roller
DE29612105U1 (en) * 1996-07-11 1996-08-22 Man Roland Druckmaschinen Ag, 63069 Offenbach Roller in a printing press

Also Published As

Publication number Publication date
CN1244462A (en) 2000-02-16
EP0985530B1 (en) 2003-09-24
DE19934395B4 (en) 2012-11-08
DE59907097D1 (en) 2003-10-30
HK1023095A1 (en) 2000-09-01
US6098540A (en) 2000-08-08
CN1131780C (en) 2003-12-24
JP2000052625A (en) 2000-02-22
EP0985530B2 (en) 2009-01-14
DE19934395A1 (en) 2000-02-17
EP0985530A2 (en) 2000-03-15

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