WO2001017778A1 - Farbwalze und verfahren zum auftragen von farbe - Google Patents
Farbwalze und verfahren zum auftragen von farbe Download PDFInfo
- Publication number
- WO2001017778A1 WO2001017778A1 PCT/EP2000/008651 EP0008651W WO0117778A1 WO 2001017778 A1 WO2001017778 A1 WO 2001017778A1 EP 0008651 W EP0008651 W EP 0008651W WO 0117778 A1 WO0117778 A1 WO 0117778A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- ink
- roller
- cavity
- application
- inking roller
- Prior art date
Links
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
- B41F—PRINTING MACHINES OR PRESSES
- B41F31/00—Inking arrangements or devices
- B41F31/22—Inking arrangements or devices for inking from interior of cylinder
-
- 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
Definitions
- the invention relates to an ink roller, in particular for an ink application system of a printing press, the ink roller being rotatably mounted and having ink storage arrangements on its outer surface.
- the invention also relates to a method for applying ink in a printing machine from an ink roller onto an application or printing surface, ink being stored on the outer surface of the ink roller.
- Known ink application systems for a printing press in particular for an offset printing press, have a plurality of rollers, such as, in particular, dyeing, application, friction, ductor rollers, etc.
- the present invention particularly relates to an ink roller of such an ink application system.
- Ink rollers of this type are used to apply the ink to an application or printing surface, which can be formed either by an application roller or directly by a printing form.
- Known inking rollers for rotary printing presses can be designed as so-called anilox rollers, as are known from EP 0 287 002.
- the outer surface of this known ink roller is provided with a large number of depressions, called cups, which are used as ink storage arrangements for
- BESTATIGUNGSKOPIE would serve the color, which is supplied from the outside via a chamber doctor blade system.
- anilox roller which serves as an ink roller, is known from EP 0 764 524.
- the anilox roller is supplied with ink from the outside via a coloring system.
- FIG. 1 Another inking roller is known from EP 0 559 076 AI.
- a porous jacket tube is rotatably mounted on a hollow body arrangement, which is formed from three coaxially interlocking hollow cylinders, each of which is provided with radial openings to the outside.
- the ink supplied from the inside is introduced into the porous material of the jacket tube by the relative rotation between the porous jacket tube and the counter-rotating outer hollow cylinder in the manner of a squeegee function.
- a thin ink is used in newspaper printing, and a "perfect anilox roller" is used. All of the ink rollers mentioned above have a squeegee function. However, it is impossible to doctor a thick ink if the relative speed between a squeegee and the doctored This means that thick paint can only be scraped off with a "slow" doctor roller.
- a porous jacket pipe e.g. in the case of EP 0 559 076 AI, is a major obstacle to color implementation, especially with thick paint.
- an electronic ink control preferably a computer control
- a computer control is also required, which allows rapid further printing, particularly after a change of printing form.
- the inking unit should have a large ink storage capacity in order to transfer a uniform and streak-free ink film to the printing surface, in particular the printing form or printing plate.
- the higher the viscosity of the paint the more complex the inking units are. For example, “short" inking units can still be used for low-viscosity inks, while “long” inking units are required for highly viscous inks.
- the inking roller has an in particular rotationally symmetrical cavity for receiving ink, and in that the lateral surface of the inking roller has a large number of passages, in particular through-bores, towards the cavity.
- the passages preferably extend radially to the axis of rotation of the inking roller and are either drilled or in some other way, in particular by burning through with a laser beam or the like, into the jacket of the inking roller. brought.
- the inking roller according to the invention has an extremely simple structure, is easy to manufacture and is therefore very inexpensive.
- the ink roller according to the invention ensures an extremely high and constant print quality, and is suitable both for low-viscosity and in particular for high-viscosity inks.
- the inking roller can be used particularly advantageously in an offset printing machine. Because the use of the inking roller, a "short", extremely simple inking unit is sufficient to transfer defined, continuous ink quantities to the application roller or directly to the corresponding printing plates of a printing cylinder. Even with unfavorable subject distribution, ink flow disturbances on the application roller or in the The solution according to the invention revolutionizes offset printing technology in particular, but can also be used in the same way for other printing machines. In particular, rotary printing machines, sheet-fed offset printing machines or flexographic printing machines are provided as printing machines according to the invention.
- the inking roller has a cavity for receiving highly viscous ink, and that the outer surface of the inking roller is provided with a large number of passages to the cavity, which are designed in such a way that they both produce the highly viscous ink during operation of the inking roller can be pushed back from the cavity to the outside as well as to the cavity inwards.
- the passages are evenly distributed over the circumference and width of the lateral surface. This further improves the goal of obtaining an extremely even application of paint.
- an ink supply device is assigned to the cavity. This means that an automatic see supply of the required ink into the cavity of the inking roller.
- the ink supply device has a pressure control for setting an overpressure for the ink in the cavity of the inking roller between 0 and 10 bar.
- the pressure control can be used to set the appropriate overpressure within the inking roller, depending on the respective production conditions.
- the paint completely fills the cavity to prevent the simultaneous presence of air, i.e. To prevent oxygen, since the presence of oxygen would lead to an undesired reaction of the paint with the oxygen, in particular to hardening.
- a single-layer or multi-layer mesh cover is drawn onto the outer surface.
- This mesh cover represents a flexible fabric that is made in particular from a woven or knitted fabric.
- the mesh cover is advantageously made of either metal or plastic.
- the meshes of the mesh cover each have a clear cross-section that is smaller than the cross-section of a passage.
- the net meshes of the individual, radially superimposed layers narrow radially outwards in the case of a multi-layer network cover.
- the mesh size of a radially outer mesh cover is thus narrower than the mesh width of a radially inner mesh cover. This further improves the "funnel function".
- the object of the invention is achieved in that the in particular highly viscous ink is fed from the interior of the inking roller through a plurality of passages, and in the converging contact area between the application or printing surface and the inking roller in the area of the jacket surface, in particular by residual ink on the application or printing surface is pressed inward toward the passages and toward the cavity.
- a particularly advantageous embodiment provides a method for applying highly viscous ink in an offset printing machine of an inking roller with an ink which is completely filled with highly viscous ink and is under positive pressure Cavity in front of an application or printing surface, wherein color is stored on the lateral surface of the inking roller and in a diverging contact area of the inking roller and application or printing surface the highly viscous ink is carried along by the application or printing surface, and wherein the peripheral surface has the highly viscous ink is fed from the inside of the ink roller through a plurality of passages, and in the converging contact area between the application or printing surface and the ink roller in the area of the lateral surface, ink is pressed inward through the passages back to the cavity.
- FIG. 1 shows a schematic side view - in a partially sectioned illustration - of a part of an ink application system in the form of an inking unit for an embodiment of a printing machine according to the invention, in particular an offset printing machine, with an embodiment of an ink roller according to the invention,
- Fig. 2 shows schematically a partially broken plan view of the ink roller according to Fig. 1, and
- FIG. 3 shows an enlarged sectional view of the detail in the area of contact between the inking roller and application roller according to FIG. 1.
- An ink application system in the form of an inking unit for a printing machine in particular in the form of an offset printing machine according to FIG. 1, has - as seen from left to right in the drawing - an inking roller 1 which is in contact with an application roller 2, which in turn is relative to one Printing form cylinder 3 rolls.
- On the application roller 2 are several, in Fig. 1 two, much smaller in diameter traversing friction rollers 4 are provided.
- the inking roller 1 is designed as a hollow cylinder and is rotatably supported on its opposite end regions by means of corresponding bearings about an axis of rotation 12. A rotationally symmetrical cavity 9 is thus provided in the interior of the inking roller 1.
- a large number of passages in the form of very small through holes 6 are provided, which are distributed evenly over the circumference and the entire width of the inking roller 1 and connect the outside of the lateral surface 5 radially to the cavity inside the inking roller 1.
- a feed device 10 which is only partially shown, is provided in order to introduce the color into the cavity 9. Since the rotary printing press shown is in particular an offset printing press, the feed device 10 supplies a highly viscous ink.
- a pressure control is assigned to the feed device 10 in a manner not shown, by means of which the paint can be fed into the cavity 9 under pressure, the overpressure in the cavity 9 being adjustable or changeable between 0 and 10 bar.
- the feed device has a feed tube which projects coaxially to the axis of rotation 12 into the cavity 9 and which is positioned in an end-side closing part of the inking roller 1. On the opposite side, the cavity 9 is closed by a further closing part, which is not described in greater detail.
- the two locking parts are also used to store the inking roller.
- the pressure control can also be supplemented by control electronics in order to achieve control in addition to control. Such pressure controls are generally known.
- the amount of ink that is to be delivered to the application rollers and thus also automatically to the printing form cylinder can be individually and precisely adjusted by means of a corresponding preprint adjustment.
- a multilayer mesh cover 7, 8 is applied to the outer surface 5 of the inking roller 1.
- the network reference has five layers in the exemplary embodiment shown, only two layers being shown in FIGS. 1 and 2 for reasons of clarity.
- the mesh widths of the radially superimposed layers of the mesh cover 7, 8 decrease radially from the inside out, so that the mesh cover with the narrowest meshes defines the outer surface of the inking roller and thus the mesh cover 7, 8.
- the outermost layer 8 of the mesh cover 7, 8 should have meshes so small that no traces of the mesh threads can be seen on the print.
- the mesh sizes Ma are preferably 50 ⁇ m or smaller.
- the diameters of the through bores 6 are preferably in the range between 0.5 and 2 mm.
- the number of through holes 6 should be very high, with the smallest possible distances between the through holes 6. Limits are set here on the one hand by the producibility and on the other hand by the requirement for the stability of the inking roller 1.
- the lateral surface of the inking roller is used directly for ink transfer to the application roller or the printing form.
- the radially innermost mesh cover 7 has a relatively large mesh size Mi, which can also be larger than the diameter of the through-hole stanchions 6, as can be seen from FIG. 3.
- the mesh cover 7, 8 completely covers the outer surface 5 of the inking roller 1, including all through holes 6.
Landscapes
- Inking, Control Or Cleaning Of Printing Machines (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Coating Apparatus (AREA)
- Electrochromic Elements, Electrophoresis, Or Variable Reflection Or Absorption Elements (AREA)
- Liquid Crystal (AREA)
- Coloring (AREA)
- Impression-Transfer Materials And Handling Thereof (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP00965921A EP1126975B1 (de) | 1999-09-03 | 2000-09-04 | Verfahren zum auftragen von farbe |
JP2001521549A JP2003508276A (ja) | 1999-09-03 | 2000-09-04 | インクローラおよびインクを塗布する方法 |
DE50015019T DE50015019D1 (de) | 1999-09-03 | 2000-09-04 | Verfahren zum auftragen von farbe |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19942146.3 | 1999-09-03 | ||
DE19942146 | 1999-09-03 | ||
DE19957453.7 | 1999-11-29 | ||
DE19957453A DE19957453C1 (de) | 1999-09-03 | 1999-11-29 | Verfahren zum Auftragen von hochviskoser Farbe bei einer Offset-Druckmaschine |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2001017778A1 true WO2001017778A1 (de) | 2001-03-15 |
Family
ID=26054820
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2000/008651 WO2001017778A1 (de) | 1999-09-03 | 2000-09-04 | Farbwalze und verfahren zum auftragen von farbe |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP1126975B1 (de) |
JP (1) | JP2003508276A (de) |
AT (1) | ATE388017T1 (de) |
DE (1) | DE50015019D1 (de) |
WO (1) | WO2001017778A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN115384174A (zh) * | 2022-09-21 | 2022-11-25 | 安徽天翔高新特种包装材料集团有限公司 | 一种用于凹版印刷机便于快速涂墨的涂墨装置 |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5324155B2 (ja) * | 2007-08-06 | 2013-10-23 | 花王株式会社 | 液体塗工装置及び吸収性物品の製造方法 |
EP2177191B1 (de) | 2007-08-06 | 2014-01-22 | Kao Corporation | Vorrichtung zur aufbringung von flüssigkeiten |
US20230249933A1 (en) * | 2019-11-11 | 2023-08-10 | Hewlett-Packard Development Company, L.P. | Primer apparatus |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2319615A (en) * | 1941-04-12 | 1943-05-18 | Cottrell C B & Sons Co | Inking roller for printing presses |
US2546304A (en) * | 1946-03-14 | 1951-03-27 | William C Huebner | Printing element or cylinder |
EP0559076A1 (de) * | 1992-02-29 | 1993-09-08 | KOENIG & BAUER-ALBERT AKTIENGESELLSCHAFT | Verfahren und Vorrichtung zum Zuführen von Farbe zu einer Auftragswalze für eine Rotationsdruckmaschine |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH08244211A (ja) * | 1995-03-14 | 1996-09-24 | Dainippon Printing Co Ltd | 印刷装置 |
JP3473797B2 (ja) * | 1995-08-08 | 2003-12-08 | 東北リコー株式会社 | マスタ及び孔版印刷装置の版胴及びインキ保持部材 |
-
2000
- 2000-09-04 DE DE50015019T patent/DE50015019D1/de not_active Expired - Fee Related
- 2000-09-04 AT AT00965921T patent/ATE388017T1/de not_active IP Right Cessation
- 2000-09-04 WO PCT/EP2000/008651 patent/WO2001017778A1/de active IP Right Grant
- 2000-09-04 JP JP2001521549A patent/JP2003508276A/ja active Pending
- 2000-09-04 EP EP00965921A patent/EP1126975B1/de not_active Expired - Lifetime
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2319615A (en) * | 1941-04-12 | 1943-05-18 | Cottrell C B & Sons Co | Inking roller for printing presses |
US2546304A (en) * | 1946-03-14 | 1951-03-27 | William C Huebner | Printing element or cylinder |
EP0559076A1 (de) * | 1992-02-29 | 1993-09-08 | KOENIG & BAUER-ALBERT AKTIENGESELLSCHAFT | Verfahren und Vorrichtung zum Zuführen von Farbe zu einer Auftragswalze für eine Rotationsdruckmaschine |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN115384174A (zh) * | 2022-09-21 | 2022-11-25 | 安徽天翔高新特种包装材料集团有限公司 | 一种用于凹版印刷机便于快速涂墨的涂墨装置 |
Also Published As
Publication number | Publication date |
---|---|
EP1126975B1 (de) | 2008-03-05 |
EP1126975A1 (de) | 2001-08-29 |
ATE388017T1 (de) | 2008-03-15 |
DE50015019D1 (de) | 2008-04-17 |
JP2003508276A (ja) | 2003-03-04 |
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