EP0364653A2 - Cylindre encreur pour machine à imprimer et méthode pour la fabrication de ce cylindre - Google Patents

Cylindre encreur pour machine à imprimer et méthode pour la fabrication de ce cylindre Download PDF

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Publication number
EP0364653A2
EP0364653A2 EP89102995A EP89102995A EP0364653A2 EP 0364653 A2 EP0364653 A2 EP 0364653A2 EP 89102995 A EP89102995 A EP 89102995A EP 89102995 A EP89102995 A EP 89102995A EP 0364653 A2 EP0364653 A2 EP 0364653A2
Authority
EP
European Patent Office
Prior art keywords
fine spherical
inking cylinder
set forth
spherical members
receiving layer
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
EP89102995A
Other languages
German (de)
English (en)
Other versions
EP0364653A3 (fr
EP0364653B1 (fr
Inventor
Noriyuki Shiba
Yuichi Okamura
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.)
Tokyo Kikai Seisakusho Co Ltd
Original Assignee
Tokyo Kikai Seisakusho Co Ltd
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 Tokyo Kikai Seisakusho Co Ltd filed Critical Tokyo Kikai Seisakusho Co Ltd
Publication of EP0364653A2 publication Critical patent/EP0364653A2/fr
Publication of EP0364653A3 publication Critical patent/EP0364653A3/fr
Application granted granted Critical
Publication of EP0364653B1 publication Critical patent/EP0364653B1/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
    • B41N7/06—Shells for rollers of printing machines for inking 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
    • B41N2207/10—Location or type of the layers in shells for rollers of printing machines characterised by inorganic compounds, e.g. pigments
    • 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 present invention relates to an inking cylinder used in a printing apparatus. More particularly, the present invention relates to an inking cylinder adapted for a keyless inking system which removes excess ink from the inking cylinder and supplies essentially constant amount of ink onto a printing surface of a plate cylinder. Further, the present invention relates to method for producing the inking cylinder.
  • ink is precisely supplied to a plate cylinder by a cooperation between a metering roller and a doctor blade.
  • the surface of the metering roller is formed with a plurality of cells configured in an essentially identical size and arranged in a regular formation. A constant amount of ink fluid is remained in each of the cells owing to the removing function of the doctor blade.
  • This ink supplying system is called "keyless inking”.
  • the 4th. prior art discloses an dampening roller used in an offset printing apparatus.
  • the surface of the dampening roller is covered with a layer made of liquid resin including hydrophilic powder.
  • This dampening roller is possessed of advantages that (a) it can supply dampening fluid at a constant rate, (b) its life period is elongated, (c) its surface has superior water holding capacity owing to fine uneven configuration of the hydrophilic inorganic power included in the surface layer, and (d) its surface can be easily repaired.
  • the above described metering roller is provided on its surface with a plurality of cells each of which is formed in precise and essentially identical configuration.
  • the cells are disposed in an regular arrangement. After excess ink is removed by scraping motion of a doctor blade, ink amount remained in each the cells is substantially equivalent.
  • the metering roller formed with the cells is subjected to abrasion by the doctor blade under its working condition.
  • the metering roller surface is gradually abraded as it works, so that the capacity of each the cells is too decreased to supply the ink with enough amount for accomplishing the printing work.
  • rollers taught by the 1st. to 5th. prior arts are possessed of relatively high hardness because their surfaces are made of the combination of inorganic powder and synthetic resin. Although these hard surfaces have well abrasion resistance, they are not adapted to be used as a meterintg roller which should be brought in contact with a doctor blade to remove the excess ink from the metering roller for supplying essentially constant amount.
  • Another object of the present invention is to provide an inking cylinder adapted for a keyless inking system which removes excess ink from the inking cylinder by a doctor blade brought in contact with the surface of the inking cylinder and supplies essentially constant amount of ink onto a printing surface of a plate cylinder.
  • a further object of the present invention is to provide an inking cylinder whose surface has an abrasion resistance against the doctor blade.
  • a still further object of the present invention is to provide a method for producing the inking cylinder.
  • the inking cylinder comprises a base member in a cylindrical shape, and an ink receiving layer formed on the base member, which ink receiving layer includes a plurality of fine spherical members.
  • a method for producing the inking cylinder comprises a first step for dispersing fine spherical members in an ink receiving layer, a second step for covering the ink receiving layer on a surface of a cylindrical base member, and a third step for grinding the surface of the ink receiving layer. So that the fine spherical members in the surface region are partially appeared and their shells are ruptured.
  • This method can easily provide the inking cylinder covered with the ink receiving layer including many dimple shape recesses which inking cylinder is possessed of superior metering and abrasion resistance properties.
  • the reference numeral 1 denotes an inking cylinder whose base member 6 formed in a cylindrical shape is made of steel or the like.
  • the base member 6 is covered with an ink receiving layer 2.
  • the ink receiving layer 2 comprises a substrate 4 and a plurality of fine spherical members 3 uniformly dispersed in the substrate 4.
  • the ink receiving layer 2 further includes hard material powder 5 in addition to the substrate 4 and fine spherical members 3 as shown in Fig. 3.
  • the substrate 4 is made of a flexible material such as synthetic resin, natural resin, rubber or the like.
  • the substrate 4 is made of urethane resin.
  • each the fine spherical members 3 is hollow.
  • the shell of the fine spherical member 3 is easily ruptured by grinding force so that the hollow interior is opened.
  • the opened hollow space can catch the ink on the cylinder surface as same as conventional metering rollers formed with many cells.
  • the spherical member 3 per se has been well knowm as various names of micro-balloon, micro-sphere, hollow balloon, and syntactic foam.
  • carbon balloon, glass balloon, silica balloon, shirasu balloon, phenol balloon, vinylidene chloride balloon, alumina balloon, and zirconia balloon have broadly used as the fine spherical members.
  • Carbo Spheres (trade name) manufactured by VERSA Manufacturing Inc. in U.S.A. and "Fillite” (trade name) manufactured by Fillite Co., Ltd. in England have been commonly known.
  • the former belongs to a carbon balloon and has bulk density of 0.15g/cm3 and shell thickness of 1 to 2 ⁇ m.
  • the company has supplied four types depending on particle size.
  • a first type has particle diameter range of 50 to 150 ⁇ m (average particle diameter; 50 ⁇ m ), a second type has particle diameter range of 5 to 100 ⁇ m (average particle diameter; 45 ⁇ m), a third type has particle diameter range of 5 to 50 ⁇ m (average particle diameter; 30 ⁇ m), and a fourth type has particle diameter range of 50 to 150 ⁇ m (average particle diameter; 60 ⁇ m).
  • these particles may be coated with various metals such as nickle, iron, copper, gold or the like. Such metal coated particles are also effectively used.
  • “Fillite” belongs to a silica balloon and has bulk density of 0.4 g/cm3 and particle diameter range of 30 to 300 ⁇ m.
  • the fine spherical members 3 of this invention are preferably selected from the particle diameter range of 5 to 300 ⁇ m.
  • the hard material powder 5 is preferably selected from ceramics powder, metal powder, alloy powder, or combination thereof.
  • the hard material powder 5 has preferably particle diameter range of 1 to 100 ⁇ m.
  • the inking cylinder according to the preferred embodiment is produced by a first method comprising a first step for dispersing the fine spherical members 3 in the substrate 4, a second step for covering the substrate 4 on the surface of the cylindrical base member 6 to form the ink receiving layer 2, and a third step for grinding the surface of the ink receiving layer 2.
  • the fine spherical members 3 dispersed in the vicinity of the surface are subjected to the grinding work and thus their shells are partially ruptured.
  • the hollow interior of the fine spherical members 3 are partially opened in the surface of the ink receiving layer 2 as shown in Fig. 2.
  • the fine sphrical members 3 (and the hard material powder 5) are uniformly dispersed in the substrate 4 by well known mixing or kneading means in response to the properties and shape of the substrate 4.
  • the substrate 4 dispersed with the fine spherical members 3 (and the hard material powder 5) is coated on the surface of the cylindrical base member 6 by well known casting, winding, or coating manner.
  • the surface of the ink receiving layer 2 is ground by a grinding machine or subjected to the grinding function by a doctor blade after the inking cylinder 1 has been assembled on a printing apparatus.
  • each the shell of the fine spherical members 3 dispersed in the vicinity of the surface of the ink receiving layer 2 is partially ruptured and removed so that the hollow interior of each the fine spherical member 3 is opened in the surface of the inking cylinder 1. Also the hard material powder 5 dispersed in the vicinity of the surface of the ink receiving layer 2 is appeared by this grinding step (in the second method).
  • the inking cylinder 1 shown in Fig. 2 manufactured by the first method is assembled on commonly used printing apparatus not shown and ink is supplied to the inking cylinder 1, the supplied ink is stuck on the ink receiving layer 2 of the inking cylinder 1 and caught by the hollow space of the fine spherical members 3. Then a doctor blade, not shown, is brought in contact with the surface of the ink receiving layer 2 to remove the excess ink from the surface. The ink partially enters into the hollow space of the fine spherical members 3.
  • Each the hollow space functions as like as cells formed in the inking cylinder as disclosed in prior arts. So that the ink remained on the ink receiving layer 2 can be always controlled within substantially equivalent amount.
  • the modified inking cylinder 1 shown in Fig. 3 manufactured by the second method is operated in the same manner as the above and ensures the same function of the former.
  • This modified inking cylinder 1 further provides abrasion resistance function against the doctor blade.
  • the surface of the ink receiving layer 2 includes some hard material powder 5 which mainly suffers the abrasion force caused by the doctor blade. Accordingly the ink receiving layer 2 can be free from remarkable abrading and thus its life can be elongated.
  • the ink receiving layer 2 includes many fine spherical members 3 (and hard material powder 5) uniformly mixed in the substrate 4. Even if the ink receiving layer 2 will be gradually abraded, new fine spherical members 3 (and the hard material powder 5) will be appeared on the surface of the ink receiving layer 2. Then such newly appeared fine spherical members 3 will be subjected to abrasion work, so that the hollow interior of the fine spherical member 3 will be also opened. Accordingly, the external surface of the inking cylinder 1 will be always kept in its primary state that a plurality of hollow space like as cell can catch ink therein to ensure the ink metering function with equivalent level. This ink metering function of the inking cylinder 1 will be maintained for a long period until immediately before the ink receiving layer 2 disappears.
  • the inking cylinder 1 provided by the present invention is especially optimum for use as a metering cylinder in a keyless inking system because the inking cylinder 1 can always supply ink at essentially equivalent rate without fluctuation of ink-metering which has been caused in conventional metering roller formed with mesh-shape recesses. Such mesh-shape recesses will become shallow by abrasion, and thus ink-metering amount will be fluctuated or decreased. Further, the methods for producing the inking cylinder 1 do not need complicated working steps such as cell forming work or special coating work required in conventional arts, thereby providing the inking cylinder with a low cost in comparison with of a flexible material so that the ink receiving layer 2 is softer than conventional cylinder surface. Thus the doctor blade brought in contact with the inking cylinder 1 is free from remarkable abrasion owing to scraping work against the inking cylinder 1 to remove the excess ink therefrom. Such constituted inking cylinder 1 can ensure long life span of the doctor blade.

Landscapes

  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Manufacture Or Reproduction Of Printing Formes (AREA)
  • Inks, Pencil-Leads, Or Crayons (AREA)
  • Rotary Presses (AREA)
EP89102995A 1988-09-30 1989-02-21 Cylindre encreur pour machine à imprimer et méthode pour la fabrication de ce cylindre Expired - Lifetime EP0364653B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP246587/88 1988-09-30
JP63246587A JPH082643B2 (ja) 1988-09-30 1988-09-30 印刷機のインキングローラーおよび印刷機のインキングローラーの製造方法

Publications (3)

Publication Number Publication Date
EP0364653A2 true EP0364653A2 (fr) 1990-04-25
EP0364653A3 EP0364653A3 (fr) 1991-02-06
EP0364653B1 EP0364653B1 (fr) 1995-05-17

Family

ID=17150636

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89102995A Expired - Lifetime EP0364653B1 (fr) 1988-09-30 1989-02-21 Cylindre encreur pour machine à imprimer et méthode pour la fabrication de ce cylindre

Country Status (5)

Country Link
EP (1) EP0364653B1 (fr)
JP (1) JPH082643B2 (fr)
AT (1) ATE122612T1 (fr)
AU (1) AU619251B2 (fr)
DE (1) DE68922685T2 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0367193A2 (fr) * 1988-11-01 1990-05-09 Kabushiki Kaisha Tokyo Kikai Seisakusho Presse polychrome et procédé d'impression polychrome
EP0363825B1 (fr) * 1988-10-14 1995-05-10 Kabushiki Kaisha Tokyo Kikai Seisakusho Dispositif d'alimentation en encre pour machine à imprimer
EP0499848B1 (fr) * 1991-02-19 1995-10-18 Rockwell International Corporation Système durable pour le transfert variable et déterminé d'encre d'imprimerie ainsi qu'un rouleau pour l'impression sans clés d'encrage
DE19814689A1 (de) * 1998-04-01 1999-10-07 Voith Sulzer Papiertech Patent Vorrichtung zum direkten oder indirekten Auftragen eines flüssigen oder pastösen Auftragsmediums auf eine laufende Materialbahn, insbesondere aus Papier oder Karton
WO2000032410A1 (fr) * 1998-11-27 2000-06-08 Koenig & Bauer Aktiengesellschaft Rouleau doseur
WO2000059727A1 (fr) * 1999-04-07 2000-10-12 Hyperlast Limited Rouleau de presse a heliogravure ameliore

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006248065A (ja) * 2005-03-11 2006-09-21 Toppan Printing Co Ltd 凸版印刷用インキ供給基材、及びそれを用いた印刷装置、及び印刷方法

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR612410A (fr) * 1925-06-30 1926-10-23 Perfectionnement aux rouleaux encreurs en caoutchouc
DE464218C (de) * 1927-08-31 1928-08-09 Hermann Beckmann Dr Poroeser Gummikoerper zum Aufsaugen, Festhalten und Abgeben von Fluessigkeiten
US2247540A (en) * 1940-02-14 1941-07-01 Francisco G Yanes Method and means for transferring liquid or soft ink values
DE1135930B (de) * 1960-04-28 1962-09-06 Luise Beutel Feuchtwalze
DE1153387B (de) * 1960-07-04 1963-08-29 Reinhold Gustav Kupfer Farbwalze aus thermoplastischer Masse
US3345942A (en) * 1966-06-14 1967-10-10 Moreland Corp Rubber covered roller
FR2095534A5 (en) * 1970-04-06 1972-02-11 Dunlop Holdings Ltd Printer's blanket contg reinforcing layer,compressible layer - and printing surface
DE2856088A1 (de) * 1978-12-23 1980-07-03 Maschf Augsburg Nuernberg Ag Farbwerk
DE3525045A1 (de) * 1985-07-13 1987-01-22 Paul Sauer Druckwalzenfabriken Druckwalze
EP0343250A1 (fr) * 1987-10-05 1989-11-29 Kinyosha Co. Ltd. Dispositif d'encrage et production de ce dispositif

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4537127A (en) * 1984-09-12 1985-08-27 Rockwell International Corporation Black oxide lithographic ink metering roller
US4567827A (en) * 1985-02-04 1986-02-04 Rockwell International Corporation Copper and nickel layered ink metering roller
US4601242A (en) * 1985-02-04 1986-07-22 Rockwell International Corporation Copper and ceramic composite ink metering roller
JP2643187B2 (ja) * 1987-10-05 1997-08-20 株式会社金陽社 インキ装置のインキ受渡しロール及びその製造方法

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR612410A (fr) * 1925-06-30 1926-10-23 Perfectionnement aux rouleaux encreurs en caoutchouc
DE464218C (de) * 1927-08-31 1928-08-09 Hermann Beckmann Dr Poroeser Gummikoerper zum Aufsaugen, Festhalten und Abgeben von Fluessigkeiten
US2247540A (en) * 1940-02-14 1941-07-01 Francisco G Yanes Method and means for transferring liquid or soft ink values
DE1135930B (de) * 1960-04-28 1962-09-06 Luise Beutel Feuchtwalze
DE1153387B (de) * 1960-07-04 1963-08-29 Reinhold Gustav Kupfer Farbwalze aus thermoplastischer Masse
US3345942A (en) * 1966-06-14 1967-10-10 Moreland Corp Rubber covered roller
FR2095534A5 (en) * 1970-04-06 1972-02-11 Dunlop Holdings Ltd Printer's blanket contg reinforcing layer,compressible layer - and printing surface
DE2856088A1 (de) * 1978-12-23 1980-07-03 Maschf Augsburg Nuernberg Ag Farbwerk
DE3525045A1 (de) * 1985-07-13 1987-01-22 Paul Sauer Druckwalzenfabriken Druckwalze
EP0343250A1 (fr) * 1987-10-05 1989-11-29 Kinyosha Co. Ltd. Dispositif d'encrage et production de ce dispositif

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0363825B1 (fr) * 1988-10-14 1995-05-10 Kabushiki Kaisha Tokyo Kikai Seisakusho Dispositif d'alimentation en encre pour machine à imprimer
EP0367193A2 (fr) * 1988-11-01 1990-05-09 Kabushiki Kaisha Tokyo Kikai Seisakusho Presse polychrome et procédé d'impression polychrome
EP0367193A3 (en) * 1988-11-01 1990-12-12 Kabushikigaisha Tokyo Kikai Seisakusho Multicolor printing machine and method of multicolor printing
EP0499848B1 (fr) * 1991-02-19 1995-10-18 Rockwell International Corporation Système durable pour le transfert variable et déterminé d'encre d'imprimerie ainsi qu'un rouleau pour l'impression sans clés d'encrage
DE19814689A1 (de) * 1998-04-01 1999-10-07 Voith Sulzer Papiertech Patent Vorrichtung zum direkten oder indirekten Auftragen eines flüssigen oder pastösen Auftragsmediums auf eine laufende Materialbahn, insbesondere aus Papier oder Karton
DE19814689B4 (de) * 1998-04-01 2006-05-24 Voith Paper Patent Gmbh Vorrichtung zum Auftragen eines flüssigen oder pastösen Auftragsmediums auf eine laufende Materialbahn, insbesondere aus Papier oder Karton
WO2000032410A1 (fr) * 1998-11-27 2000-06-08 Koenig & Bauer Aktiengesellschaft Rouleau doseur
WO2000059727A1 (fr) * 1999-04-07 2000-10-12 Hyperlast Limited Rouleau de presse a heliogravure ameliore

Also Published As

Publication number Publication date
JPH082643B2 (ja) 1996-01-17
ATE122612T1 (de) 1995-06-15
AU619251B2 (en) 1992-01-23
EP0364653A3 (fr) 1991-02-06
AU3023289A (en) 1990-04-12
DE68922685D1 (de) 1995-06-22
JPH0292640A (ja) 1990-04-03
EP0364653B1 (fr) 1995-05-17
DE68922685T2 (de) 1995-12-21

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