EP3196042A2 - Ink duct and method of engraving ink duct - Google Patents

Ink duct and method of engraving ink duct Download PDF

Info

Publication number
EP3196042A2
EP3196042A2 EP17152982.9A EP17152982A EP3196042A2 EP 3196042 A2 EP3196042 A2 EP 3196042A2 EP 17152982 A EP17152982 A EP 17152982A EP 3196042 A2 EP3196042 A2 EP 3196042A2
Authority
EP
European Patent Office
Prior art keywords
ink duct
engraving
ink
walls
length
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.)
Withdrawn
Application number
EP17152982.9A
Other languages
German (de)
French (fr)
Other versions
EP3196042A3 (en
Inventor
Przemyslaw Kozlak
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.)
Zaklad Poligraficzny Pol-Mak PD Makowlak SpJ
Original Assignee
Zaklad Poligraficzny Pol-Mak PD Makowlak SpJ
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 Zaklad Poligraficzny Pol-Mak PD Makowlak SpJ filed Critical Zaklad Poligraficzny Pol-Mak PD Makowlak SpJ
Publication of EP3196042A2 publication Critical patent/EP3196042A2/en
Publication of EP3196042A3 publication Critical patent/EP3196042A3/en
Withdrawn legal-status Critical Current

Links

Images

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
    • B41F31/26—Construction of 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

Definitions

  • This invention relates to a new shape for an ink duct and a method of engraving an ink duct.
  • Anilox rolls are widely used elements of printing machines. They are, among others, widely used in flexography, namely a type of relief printing process, in which a relief plate is used. Flexography is a rotary technology, which means that with each rotation of the printing cylinder a printed sheet is obtained.
  • a printing assembly in the flexographic printing machines is composed of a squeegee chamber, an anilox roll, a plate cylinder and an impression cylinder.
  • Flexographic printing utilizes low-viscosity inks. Ink is spread onto a printing plate only on image areas. The ink is transferred from ink ducts with help of an ink roll onto the anilox roll, and then onto the plate cylinder to which the printing plate is attached, and the image from the printing plate is transferred to the substrate pressed down by the impression cylinder.
  • Ink ducts are principally formed in the process of subjecting the working surface of the anilox roll to a laser beam, which results in obtaining the ink duct structure as a result of engraving.
  • the volume of ink transferred to the appropriate substrate depends among others on the ink ducts' structure, their volume, as well as their frequency of presence measured in lines per a unit of length.
  • the Polish patent application no. P-400602 discloses a method of manufacturing anilox rolls, wherein an anilox sleeve comprises an inner sleeve made of a compressible material and an outer sleeve. Ink ducts are engraved on the outer surface.
  • the method disclosed in that publication is characterised, among others, in that ink ducts are engraved with use of a NIR laser with a laser beam having a near-infrared wavelength range of 1070 nm.
  • a process of making anilox rolls that include ink ducts is also disclosed in the patent application no. US 2010/0015354 .
  • a pattern is formed with laser on the roller surface coated with a ceramic material, and the whole element is subject to polishing and cleaning of the outer surface.
  • Patent PL 172007 discloses a method and apparatus for engraving cylindrical moulds.
  • the method disclosed therein is characterised in that with the aid of a laser beam a coating of lacquer residing on the surface of a hollow cylindrical, rotating metal screen is removed at prescribed sample regions.
  • the removal of the coating of lacquer inside the sample regions is performed with a laser beam turned on continuously, the laser beam being turned off at the end of a respective sample region within a specified period of time.
  • Radiation retroreflected into the laser beam path at the metal screen is coupled out of the laser beam path in order not to delay switching off the laser beam.
  • the purpose of the invention thus became to develop a new structure of an ink duct, different from the generally used hexagonal structure (standard structure), in which all sides of the structure are equal and proportional.
  • An additional goal of the invention was to develop a method of obtaining the intended, novel ink duct structure.
  • the subject-matter of the invention is an ink duct engraved on the surface of an anilox roll.
  • the ink duct is composed of upper walls (a), side walls (b) and bottom walls (c) and is characterised in that the length of the side walls (b) of the ink duct is greater than the length of the upper walls (a) and the bottom walls (c).
  • the ink duct according to the invention is characterised in that the length of the side walls (b) of the ink duct is equal to or greater than 1.2 times the length of the upper walls (a) and the bottom walls (c), and most advantageously the ink duct is characterised in that the upper walls (a) of the ink duct are connected to the bottom walls (c) of the ink duct via channels.
  • the subject-matter of the invention is also a method of engraving an ink duct, which consists in that the ink duct is engraved by a beam of a NIR laser operating in a continuous mode within a system involving an external modulator.
  • This method is characterised in that a single laser beam is used, with shift of the laser head being between 8.3 ⁇ m and 31.3 ⁇ m.
  • the linear velocity around the perimeter of the anilox roll subject to engraving is between 58.0 cm/s and 87.0 cm/s, while pulse duration was between 6.7 ⁇ s and 20 ⁇ s.
  • the method was carried out with pulse amplitude between 110 W and 200 W, and wave frequency between 8.04 kHz and 26.8 kHz.
  • the angle of engraving was 60°.
  • Calibration parameters of the laser were adapted to 500 lines per centimeter and ink capacity of 2.6 cm 3 /m 2 .
  • the engraving was carried out on a surface of a ceramic material such as Cr 2 O 3 with thickness of 200 ⁇ m, hardness of 1250 Hv, porosity of 3,50% and roughness Ra of 0,10.
  • the shift of the laser head was set at 9.1 ⁇ m; and the linear velocity along the perimeter of the cylinder/anilox sleeve subject to engraving was 85.0 cm/s.
  • the laser beam's pulse duration was set to 6.7 ms with pulse amplitude of 200 W.
  • the generated wave frequency was 26,8 kHz.
  • the angle of the laser beam during the engraving was 60°.
  • Calibration parameters of the laser were adapted to 160 lines per centimeter and ink capacity of 7.5 cm 3 /m 2 .
  • the engraving was carried out on a surface of a ceramic material such as Cr 2 O 3 with thickness of 200 ⁇ m, hardness of 1250 Hv, porosity of 3.50% and roughness Ra of 0.16.
  • the shift of the laser head was set at 31.3 ⁇ m; and the linear velocity along the perimeter of the cylinder / anilox sleeve subject to engraving was 87.0 cm/s.
  • the laser beam's pulse duration was set to 20 ms with pulse amplitude of 110 W.
  • the generated wave frequency was 8.04 kHz.
  • the angle of the laser beam during the engraving was 60°.
  • Calibration parameters of the laser were adapted to 600 lines per centimeter and ink capacity of 3.0 cm 3 /m 2 .
  • the engraving was carried out on a surface of a ceramic material such as Cr 2 O 3 with thickness of 200 ⁇ m, hardness of 1250 Hv, porosity of 3.50% and roughness Ra of 0.09.
  • a ceramic material such as Cr 2 O 3 with thickness of 200 ⁇ m, hardness of 1250 Hv, porosity of 3.50% and roughness Ra of 0.09.
  • the shift of the laser head was set at 8.3 ⁇ m; and the linear velocity along the perimeter of the cylinder anilox sleeve subject to engraving was 58.0 cm/s.
  • the laser beam's pulse duration was set to 7.5 ms with pulse amplitude of 200 W.
  • the generated wave frequency was 20.09 kHz.
  • the angle of the laser beam during the engraving was 60°.

Landscapes

  • Manufacture Or Reproduction Of Printing Formes (AREA)
  • Pens And Brushes (AREA)
  • Printing Methods (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Inks, Pencil-Leads, Or Crayons (AREA)

Abstract

The subject-matter of invention is a novel shape of an ink duct and a method of engraving of a novel shape of an ink duct. The ink duct according to the invention and the method of engraving said ink duck on anilox rolls can be used in the flexographic printing process.

Description

  • This invention relates to a new shape for an ink duct and a method of engraving an ink duct.
  • Anilox rolls are widely used elements of printing machines. They are, among others, widely used in flexography, namely a type of relief printing process, in which a relief plate is used. Flexography is a rotary technology, which means that with each rotation of the printing cylinder a printed sheet is obtained.
  • A printing assembly in the flexographic printing machines is composed of a squeegee chamber, an anilox roll, a plate cylinder and an impression cylinder. Flexographic printing utilizes low-viscosity inks. Ink is spread onto a printing plate only on image areas. The ink is transferred from ink ducts with help of an ink roll onto the anilox roll, and then onto the plate cylinder to which the printing plate is attached, and the image from the printing plate is transferred to the substrate pressed down by the impression cylinder.
  • Ink ducts are principally formed in the process of subjecting the working surface of the anilox roll to a laser beam, which results in obtaining the ink duct structure as a result of engraving. The volume of ink transferred to the appropriate substrate depends among others on the ink ducts' structure, their volume, as well as their frequency of presence measured in lines per a unit of length.
  • Professional literature currently knows a few methods of obtaining anilox rolls as well as ink ducts present thereon.
  • The Polish patent application no. P-400602 discloses a method of manufacturing anilox rolls, wherein an anilox sleeve comprises an inner sleeve made of a compressible material and an outer sleeve. Ink ducts are engraved on the outer surface. The method disclosed in that publication is characterised, among others, in that ink ducts are engraved with use of a NIR laser with a laser beam having a near-infrared wavelength range of 1070 nm.
  • A process of making anilox rolls that include ink ducts is also disclosed in the patent application no. US 2010/0015354 . In that publication, a pattern is formed with laser on the roller surface coated with a ceramic material, and the whole element is subject to polishing and cleaning of the outer surface.
  • Patent PL 172007 discloses a method and apparatus for engraving cylindrical moulds. The method disclosed therein is characterised in that with the aid of a laser beam a coating of lacquer residing on the surface of a hollow cylindrical, rotating metal screen is removed at prescribed sample regions. The removal of the coating of lacquer inside the sample regions is performed with a laser beam turned on continuously, the laser beam being turned off at the end of a respective sample region within a specified period of time. Radiation retroreflected into the laser beam path at the metal screen is coupled out of the laser beam path in order not to delay switching off the laser beam. As a result of the method it is possible to produce samples having particularly sharp edge structures
  • Even though so far a number of solutions had been disclosed in relation to methods of obtaining anilox rolls as well as ink ducts residing thereon, the state of the art still does not include a solution which would enable obtaining a suitable structure of ink ducts, which would in turn allow increasing the actual ink efficiency and, by the same, increase the rotation of ink during the printing process and improve its transfer onto the printing plate.
  • The purpose of the invention thus became to develop a new structure of an ink duct, different from the generally used hexagonal structure (standard structure), in which all sides of the structure are equal and proportional. An additional goal of the invention was to develop a method of obtaining the intended, novel ink duct structure.
  • The subject-matter of the invention is an ink duct engraved on the surface of an anilox roll. The ink duct is composed of upper walls (a), side walls (b) and bottom walls (c) and is characterised in that the length of the side walls (b) of the ink duct is greater than the length of the upper walls (a) and the bottom walls (c). Preferably, the ink duct according to the invention is characterised in that the length of the side walls (b) of the ink duct is equal to or greater than 1.2 times the length of the upper walls (a) and the bottom walls (c), and most advantageously the ink duct is characterised in that the upper walls (a) of the ink duct are connected to the bottom walls (c) of the ink duct via channels.
  • The subject-matter of the invention is also a method of engraving an ink duct, which consists in that the ink duct is engraved by a beam of a NIR laser operating in a continuous mode within a system involving an external modulator. This method is characterised in that a single laser beam is used, with shift of the laser head being between 8.3 µm and 31.3 µm. The linear velocity around the perimeter of the anilox roll subject to engraving is between 58.0 cm/s and 87.0 cm/s, while pulse duration was between 6.7 µs and 20 µs. The method was carried out with pulse amplitude between 110 W and 200 W, and wave frequency between 8.04 kHz and 26.8 kHz. The angle of engraving was 60°.
  • The subject-matter of the invention is represented by an example embodiment, in a drawing, in which:
    • Fig.1 is a schematic representation of an ink duct according to the invention, with indication of upper walls "a", side walls "b", and bottom walls "c".
    • Fig.2 is an axonometric projection of a fragment of an anilox roll, with an ink duct marked with a dashed line and a channel connecting the individual ink ducts marked with a double dotted line.
    • Fig.3 is a horizontal projection on the surface of an anilox roll, with an ink duct marked with a dashed line and a channel connecting the individual ink ducts marked with a double dotted line.
  • Examples of a method of engraving an ink duct are presented in the below embodiments.
    • Example 1
  • An anilox cylinder, earlier produced in a manufacturing process, was subjected to engraving with use of light source of a NIR laser operating in a continuous mode, with maximum power of 200 W, within a system involving an external modulator.
  • Calibration parameters of the laser were adapted to 500 lines per centimeter and ink capacity of 2.6 cm3/m2. The engraving was carried out on a surface of a ceramic material such as Cr2O3 with thickness of 200 µm, hardness of 1250 Hv, porosity of 3,50% and roughness Ra of 0,10. During the engraving process the shift of the laser head was set at 9.1 µm; and the linear velocity along the perimeter of the cylinder/anilox sleeve subject to engraving was 85.0 cm/s. The laser beam's pulse duration was set to 6.7 ms with pulse amplitude of 200 W. The generated wave frequency was 26,8 kHz. The angle of the laser beam during the engraving was 60°.
  • As a result of the engraving process carried out in that manner, it was possible to produce an ink duct structure in which the length of the ink duct's side walls "b" is greater than 1.2 times the length of the upper walls "a" and bottom walls "c", specifically it was 1.75. Additionally, such manner of engraving allowed to connect the upper walls and bottom walls via channels, which resulted in a hybrid structure, combining the features of closed structures and open (flow-through) structures. An advantage resulting from the engraving process carried out in this manner is the obtaining of an ink duct which provides improved ink efficiency.
    • Example 2
  • An anilox cylinder, earlier produced in a manufacturing process, was subjected to engraving with use of light source of a NIR laser operating in a continuous mode, with maximum power of 200 W, within a system involving an external modulator.
  • Calibration parameters of the laser were adapted to 160 lines per centimeter and ink capacity of 7.5 cm3/m2. The engraving was carried out on a surface of a ceramic material such as Cr2O3 with thickness of 200 µm, hardness of 1250 Hv, porosity of 3.50% and roughness Ra of 0.16. During the engraving process the shift of the laser head was set at 31.3 µm; and the linear velocity along the perimeter of the cylinder / anilox sleeve subject to engraving was 87.0 cm/s. The laser beam's pulse duration was set to 20 ms with pulse amplitude of 110 W. The generated wave frequency was 8.04 kHz. The angle of the laser beam during the engraving was 60°.
  • As a result of the engraving process carried out in that manner, it was possible to produce an ink duct structure in which the length of the ink duct's side walls "c" is greater than 1.2 times the length of the upper and bottom walls , specifically it was 1.60.
  • Additionally, such manner of engraving allowed to connect the upper walls and bottom walls via channels, which resulted in a hybrid structure, combining the features of closed structures and open (flow-through) structures. An advantage resulting from the engraving process carried out in this manner is the obtaining of an ink duct which provides an improved ink efficiency.
    • Example 3
  • An anilox cylinder, earlier produced in a manufacturing process, was subjected to engraving with use of light source of a NIR laser operating in a continuous mode, with maximum power of 200 W, within a system involving an external modulator.
  • Calibration parameters of the laser were adapted to 600 lines per centimeter and ink capacity of 3.0 cm3/m2.
  • The engraving was carried out on a surface of a ceramic material such as Cr2O3 with thickness of 200 µm, hardness of 1250 Hv, porosity of 3.50% and roughness Ra of 0.09. During the engraving process the shift of the laser head was set at 8.3 µm; and the linear velocity along the perimeter of the cylinder anilox sleeve subject to engraving was 58.0 cm/s. The laser beam's pulse duration was set to 7.5 ms with pulse amplitude of 200 W. The generated wave frequency was 20.09 kHz. The angle of the laser beam during the engraving was 60°.
  • As a result of the engraving process carried out in that manner, it was possible to produce an ink duct structure in which the length of the ink duct's side walls "c" is greater than 1.2 times the length of the upper and bottom walls , specifically it was 1.45.
  • Additionally, such manner of engraving allowed to connect the upper walls and bottom walls via channels, which resulted in a hybrid structure, combining the features of closed structures and open (flow-through) structures. An advantage resulting from the engraving process carried out in this manner is the obtaining of an ink duct which provides an improved ink efficiency.

Claims (4)

  1. An ink duct engraved on a surface of an anilox roll, composed of upper walls (a), side walls (b) and bottom walls (c), characterised in that the length of the side walls (b) is greater than the length of the upper walls (a) and the bottom walls (c).
  2. An ink duct according to claim 1 characterised in that the length of the side walls (b) of the ink duct is equal to or greater than 1.2 times the length of the upper walls (a) and the bottom walls (c).
  3. An ink duct according to claim 1 characterised in that the upper walls (a) of the ink duct are connected to the bottom walls (c) of the ink duct via channels.
  4. A method of engraving an ink duct consisting in engraving it by a beam of a NIR laser operating in a continuous mode within a system involving an external modulator characterised in that a single laser beam is used, with shift of the laser head being between 8.3 µm and 31.3 µm, the linear velocity along the perimeter of the anilox roll subject to engraving being between 58.0 cm/s and 87.0 cm/s, pulse duration being between 6.7 µs and 20 µs, pulse amplitude being between 110 W and 200 W, wave frequency being between 8.04 kHz and 26.8 kHz, and the angle of engraving being 60°.
EP17152982.9A 2016-01-25 2017-01-25 Ink duct and method of engraving ink duct Withdrawn EP3196042A3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PL415898A PL415898A1 (en) 2016-01-25 2016-01-25 Ink fountain and method for engraving the ink fountain

Publications (2)

Publication Number Publication Date
EP3196042A2 true EP3196042A2 (en) 2017-07-26
EP3196042A3 EP3196042A3 (en) 2017-08-02

Family

ID=58158757

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17152982.9A Withdrawn EP3196042A3 (en) 2016-01-25 2017-01-25 Ink duct and method of engraving ink duct

Country Status (2)

Country Link
EP (1) EP3196042A3 (en)
PL (1) PL415898A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
PL232956B1 (en) * 2017-08-23 2019-08-30 Rausz Rafal Grafix Centrum Poligrafii Spatial structure of a surface of polygraphic anilox cylinder intended for transferring of conductive lacquer/ink onto the painting roller

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
PL172007B1 (en) 1992-09-28 1997-07-31 Schablonentechnik Kufstein Ag Method of engraving cylindrical moulds and apparatus therefor
US20100015354A1 (en) 2008-07-16 2010-01-21 Lee Tai-Cheung Method of making rollers with a fine pattern
PL400602A1 (en) 2012-08-31 2014-03-03 Tewex-Repro Spólka Z Ograniczona Odpowiedzialnoscia Raster roll sleeve and a method for producing a raster roll sleeve

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4819558A (en) * 1985-04-18 1989-04-11 Pamarco Incorporated High efficiency fluid metering roll
DE9004666U1 (en) * 1990-04-25 1990-07-26 W. Haldenwanger Technische Keramik Gmbh & Co Kg, 1000 Berlin, De
US5143578A (en) * 1990-08-07 1992-09-01 Union Carbide Coatings Service Technology Corporation Method for engraving solid articles with laser beams
GB9311428D0 (en) * 1993-06-03 1993-07-21 Zed Instr Ltd Laser engraving apparatus
JP2001191185A (en) * 1999-11-15 2001-07-17 Praxair St Technol Inc Method and device for carving solid article by laser beam
JP5301562B2 (en) * 2007-12-21 2013-09-25 アペックス・ヨーロッパ・ビー．ブイ． Method for printing on substrate using anilox roll, anilox roll for printing method and printing apparatus
DE102010004632A1 (en) * 2009-02-03 2010-08-05 Heidelberger Druckmaschinen Ag Process for producing anilox rolls
WO2013165567A1 (en) * 2012-05-04 2013-11-07 Unipixel Displays, Inc. Manufacturing of high resolution conductive patterns using organometallic ink and banded anilox rolls

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
PL172007B1 (en) 1992-09-28 1997-07-31 Schablonentechnik Kufstein Ag Method of engraving cylindrical moulds and apparatus therefor
US20100015354A1 (en) 2008-07-16 2010-01-21 Lee Tai-Cheung Method of making rollers with a fine pattern
PL400602A1 (en) 2012-08-31 2014-03-03 Tewex-Repro Spólka Z Ograniczona Odpowiedzialnoscia Raster roll sleeve and a method for producing a raster roll sleeve

Also Published As

Publication number Publication date
PL415898A1 (en) 2017-07-31
EP3196042A3 (en) 2017-08-02

Similar Documents

Publication Publication Date Title
EP2183057B1 (en) Method and apparatus for the application of plastics coatings
EP0730953B1 (en) Process and apparatus for intaglio printing
CN103660650B (en) Method and apparatus for printing printable fabric
JPH02175882A (en) Method and apparatus for treating rolling roll surface and metal strip for press-working manufactured by this method and manufacture thereof
RU2684662C2 (en) Inking apparatus of printing press, printing press comprising same and method of producing vibrator roller
JP2011521805A (en) Intaglio printing plate manufacturing method and system for producing securities
HUE026283T2 (en) Method and apparatus for forming an anilox roll
US4993320A (en) Inking roller and method for the production thereof
EP3196042A2 (en) Ink duct and method of engraving ink duct
DD279448A5 (en) PROCESS FOR SURFACE TREATMENT OF A PRINTING MACHINE CYLINDER
ES2358237T3 (en) MACHINE FOR FINISHING WITH ROLLER OF NATURAL SKIN, LEATHER AND SIMILAR, THAT WORKS WITH THE NAME METHOD "SYNCHRONIZED".
US10994565B2 (en) Liquid-bearing articles for transferring and applying liquids
EP0896836A3 (en) Printing device for coating a sheet material with a paste
US20090211472A1 (en) Gravure printing method with exchangeable printing plate
WO2020048202A1 (en) Ink supply system, printer comprising said ink supply system, and printing method
CN109094226B (en) Gravure printing process for paper packaging box and printing equipment thereof
JP2000516170A (en) Ink unit
JP2001113676A (en) Method for flexographic printing for rainbow printing
JP3826292B2 (en) Intaglio cylinder manufacturing method, gravure intaglio printing method and printed matter thereof
DE102016002454A1 (en) Method and apparatus for gravure printing
CN220808846U (en) Plate roller and gravure printing device
JPH07117207A (en) Plate making method
EP0394700B1 (en) Impression cylinder, especially for offset-machine
WO2018149653A1 (en) Method for operating a device for printing hollow bodies
DE631476C (en) Device for applying liquids, in particular dye solutions, to paper, cardboard or similar materials

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN PUBLISHED

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

RIC1 Information provided on ipc code assigned before grant

Ipc: B41F 31/26 20060101ALI20170627BHEP

Ipc: B05C 1/08 20060101ALN20170627BHEP

Ipc: B41N 7/06 20060101AFI20170627BHEP

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20180203