GB1428045A - Method of engraving a printing member using a beam of radiant energy - Google Patents

Method of engraving a printing member using a beam of radiant energy

Info

Publication number
GB1428045A
GB1428045A GB4053873A GB4053873A GB1428045A GB 1428045 A GB1428045 A GB 1428045A GB 4053873 A GB4053873 A GB 4053873A GB 4053873 A GB4053873 A GB 4053873A GB 1428045 A GB1428045 A GB 1428045A
Authority
GB
United Kingdom
Prior art keywords
mask
energy
printing member
printing
cylinder
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.)
Expired
Application number
GB4053873A
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.)
European Rotogravure Association ERA eV
Original Assignee
European Rotogravure Association ERA eV
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 European Rotogravure Association ERA eV filed Critical European Rotogravure Association ERA eV
Publication of GB1428045A publication Critical patent/GB1428045A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
    • G03F5/00—Screening processes; Screens therefor
    • G03F5/20—Screening processes; Screens therefor using screens for gravure printing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/02—Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
    • B23K26/06—Shaping the laser beam, e.g. by masks or multi-focusing
    • B23K26/064—Shaping the laser beam, e.g. by masks or multi-focusing by means of optical elements, e.g. lenses, mirrors or prisms
    • B23K26/066—Shaping the laser beam, e.g. by masks or multi-focusing by means of optical elements, e.g. lenses, mirrors or prisms by using masks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41C—PROCESSES FOR THE MANUFACTURE OR REPRODUCTION OF PRINTING SURFACES
    • B41C1/00—Forme preparation
    • B41C1/02—Engraving; Heads therefor
    • B41C1/04—Engraving; Heads therefor using heads controlled by an electric information signal
    • B41C1/05—Heat-generating engraving heads, e.g. laser beam, electron beam

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Optics & Photonics (AREA)
  • Plasma & Fusion (AREA)
  • Manufacturing & Machinery (AREA)
  • General Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Manufacture Or Reproduction Of Printing Formes (AREA)
  • Laser Beam Processing (AREA)
  • Facsimile Scanning Arrangements (AREA)
  • Lasers (AREA)
  • Combination Of More Than One Step In Electrophotography (AREA)

Abstract

1428045 Engraving by radiant energy beams; making printing members EUROPEAN ROTOGRAVURE ASSOCIATION 28 Aug 1973 [25 Aug 1972] 40538/73 Headings B3V and B3A A printing member D is engraved by irradiating it through a mask M, the proportion of radiation transmitted at any point by the mask M being dependent upon the tone of a corresponding point on an original picture, so that cavities are produced in the member D whose surface area and/or depth correspond to the tones of the original picture. The energy beam used has a constant energy and frequency. The mask M may comprise a supporting layer of glass or plastics permeable to the energy beam from a carbon dioxide laser source and a layer of aluminium, magnesium or silver which includes areas a-f having progressively less reflectivity so that progressively deeper cavities are formed in the printing member D by the laser beam. The remainder of the mask layer comprises areas g which are fully reflecting so as to prevent the passage of the beam to the surface of the member D. The cross-section of the beam is a multiple of the surface area of the largest cavity to be formed. The mask M may alternatively be mounted directly on the member D. The printing member D may be in the form of a rotogravure cylinder which is rotated whilst the laser beam is moved along paths parallel to the cylinder axis. The cylinder may be scanned with two or more energy beams.
GB4053873A 1972-08-25 1973-08-28 Method of engraving a printing member using a beam of radiant energy Expired GB1428045A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2241849A DE2241849C3 (en) 1972-08-25 1972-08-25 Process for engraving gravure forms by means of one or more beams

Publications (1)

Publication Number Publication Date
GB1428045A true GB1428045A (en) 1976-03-17

Family

ID=5854520

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4053873A Expired GB1428045A (en) 1972-08-25 1973-08-28 Method of engraving a printing member using a beam of radiant energy

Country Status (4)

Country Link
JP (1) JPS5316721B2 (en)
CH (1) CH561602A5 (en)
DE (1) DE2241849C3 (en)
GB (1) GB1428045A (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5214420A (en) * 1975-07-16 1977-02-03 Canon Inc Recording device
JPS5256688U (en) * 1975-10-23 1977-04-23
JPS52105025A (en) * 1976-02-28 1977-09-03 Kooken Yuugen Laser beam seal engraving method
JPS52108211A (en) * 1976-03-08 1977-09-10 Kooken Yuugen Laser beam seal engraving method and device
JPS54156703A (en) * 1978-05-30 1979-12-11 Shiyachihata Kougiyou Kk Method of making printing piece
JPS61195791A (en) * 1985-02-27 1986-08-30 Takatou Seikan Kk Carving method by laser beam
JPS61269995A (en) * 1985-05-23 1986-11-29 Takatou Seikan Kk Engraving method by laser light
JPS61276791A (en) * 1985-05-31 1986-12-06 Takatou Seikan Kk Engraving method by laser beam
WO2020067064A1 (en) 2018-09-28 2020-04-02 Ｊｆｅスチール株式会社 Long steel pipe for reel method and manufacturing method for same

Also Published As

Publication number Publication date
DE2241849B2 (en) 1979-03-01
DE2241849A1 (en) 1974-03-21
DE2241849C3 (en) 1979-10-18
JPS50106701A (en) 1975-08-22
JPS5316721B2 (en) 1978-06-03
CH561602A5 (en) 1975-05-15

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee