UST105002I4 - Erosion process for generation of offset masters - Google Patents
Erosion process for generation of offset masters Download PDFInfo
- Publication number
- UST105002I4 UST105002I4 US06/588,472 US58847284A UST105002I4 US T105002 I4 UST105002 I4 US T105002I4 US 58847284 A US58847284 A US 58847284A US T105002 I4 UST105002 I4 US T105002I4
- Authority
- US
- United States
- Prior art keywords
- dielectric
- conducting
- printing plate
- generation
- lithographic printing
- 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.)
- Pending
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
- B41N3/00—Preparing for use and conserving printing surfaces
- B41N3/03—Chemical or electrical pretreatment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41C—PROCESSES FOR THE MANUFACTURE OR REPRODUCTION OF PRINTING SURFACES
- B41C1/00—Forme preparation
- B41C1/10—Forme preparation for lithographic printing; Master sheets for transferring a lithographic image to the forme
- B41C1/1008—Forme preparation for lithographic printing; Master sheets for transferring a lithographic image to the forme by removal or destruction of lithographic material on the lithographic support, e.g. by laser or spark ablation; by the use of materials rendered soluble or insoluble by heat exposure, e.g. by heat produced from a light to heat transforming system; by on-the-press exposure or on-the-press development, e.g. by the fountain of photolithographic materials
- B41C1/1033—Forme preparation for lithographic printing; Master sheets for transferring a lithographic image to the forme by removal or destruction of lithographic material on the lithographic support, e.g. by laser or spark ablation; by the use of materials rendered soluble or insoluble by heat exposure, e.g. by heat produced from a light to heat transforming system; by on-the-press exposure or on-the-press development, e.g. by the fountain of photolithographic materials by laser or spark ablation
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Thermal Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Printing Plates And Materials Therefor (AREA)
Abstract
An improved lithographic printing plate includes a substrate layer of a nonconducting, hydrophobic polyester, an intermediate film of conducting, hydrophilic material such as aluminum and a top protective film of relatively hard hydrophilic dielectric material, such as aluminum oxide. A printing image is formed in the lithographic printing plate by an electroerosion process wherein erosion electrodes are pulsed with voltage to break down the dielectric in areas adjacent to the erosion electrodes and to evaporate or otherwise remove corresponding portions of the conducting film, thereby creating holes that extend through the dielectric and conducting films and that expose portions of the surface of the underlying hydrophobic substrate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US06/588,472 UST105002I4 (en) | 1979-12-17 | 1984-04-20 | Erosion process for generation of offset masters |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US10396579A | 1979-12-17 | 1979-12-17 | |
| US06/588,472 UST105002I4 (en) | 1979-12-17 | 1984-04-20 | Erosion process for generation of offset masters |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US06324495 Continuation | 1981-11-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| UST105002I4 true UST105002I4 (en) | 1985-01-01 |
Family
ID=26801040
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US06/588,472 Pending UST105002I4 (en) | 1979-12-17 | 1984-04-20 | Erosion process for generation of offset masters |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | UST105002I4 (en) |
-
1984
- 1984-04-20 US US06/588,472 patent/UST105002I4/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0030642A3 (en) | Lithographic printing plate and method for producing the same | |
| UST105002I4 (en) | Erosion process for generation of offset masters | |
| JPS5646753A (en) | Preparation of gravure lithographic plate | |
| US4622262A (en) | Recording materials of improved lubricity for use in electroerosion printing | |
| JPS5640571A (en) | Thermal print head | |
| JPS55158649A (en) | Manufacture of electrode wiring | |
| JPS57126624A (en) | Manufacture of dressed sheet made of synthetic resin | |
| US4568621A (en) | Thermal transfer printing processes with electroerosion and materials therefor | |
| JPS5877263A (en) | Photoelectromotive force element | |
| JPS6465824A (en) | Unfired ceramic sheet | |
| JPS6465817A (en) | Manufacture of unfired ceramic sheet formed into electrode | |
| JPS5395047A (en) | Discharge recording film | |
| EP0117407A2 (en) | Thermal transfer printing processes | |
| JPS55128477A (en) | Preparing method for heat-sensitive head | |
| JPS5614238A (en) | Lithographic plate preparation and material for its preparation | |
| GB784673A (en) | A method of producing printed circuit master drawings | |
| JPS5661145A (en) | Manufacture of semiconductor device | |
| JPS5595930A (en) | Fully solid type electrochromic display device | |
| JPS5534661A (en) | Manufacture of etching plate | |
| JPS62105645A (en) | Structure of thermal head | |
| GB1057461A (en) | Improvements in or relating to electrostatic recording | |
| JPS5646776A (en) | Thermosensitive printer head | |
| SU962000A1 (en) | Shaft for making offset printing plates | |
| JPH0237047B2 (en) | ||
| JPS5675652A (en) | Image forming member |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| STPP | Information on status: patent application and granting procedure in general |
Free format text: DEFENSIVE PUBLICATION OR SIR FILE |