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 energyInfo
- 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
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)
- Facsimile Scanning Arrangements (AREA)
- Lasers (AREA)
- Combination Of More Than One Step In Electrophotography (AREA)
- Laser Beam Processing (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.
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)
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 |
JP6662505B1 (en) | 2018-09-28 | 2020-03-11 | Jfeスチール株式会社 | Long steel pipe for reel method and method of manufacturing the same |
-
1972
- 1972-08-25 DE DE2241849A patent/DE2241849C3/en not_active Expired
-
1973
- 1973-08-24 JP JP9508173A patent/JPS5316721B2/ja not_active Expired
- 1973-08-25 CH CH1218873A patent/CH561602A5/xx not_active IP Right Cessation
- 1973-08-28 GB GB4053873A patent/GB1428045A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE2241849C3 (en) | 1979-10-18 |
DE2241849A1 (en) | 1974-03-21 |
CH561602A5 (en) | 1975-05-15 |
DE2241849B2 (en) | 1979-03-01 |
JPS5316721B2 (en) | 1978-06-03 |
JPS50106701A (en) | 1975-08-22 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |