GB2001584A - Process for treating a lithographic printing plate - Google Patents
Process for treating a lithographic printing plateInfo
- Publication number
- GB2001584A GB2001584A GB787826278A GB7826278A GB2001584A GB 2001584 A GB2001584 A GB 2001584A GB 787826278 A GB787826278 A GB 787826278A GB 7826278 A GB7826278 A GB 7826278A GB 2001584 A GB2001584 A GB 2001584A
- Authority
- GB
- United Kingdom
- Prior art keywords
- printing plate
- light
- treating
- lithographic printing
- halide
- 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.)
- Granted
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
- B41N3/00—Preparing for use and conserving printing surfaces
- B41N3/08—Damping; Neutralising or similar differentiation treatments for lithographic printing formes; Gumming or finishing solutions, fountain solutions, correction or deletion fluids, or on-press development
-
- 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
- G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
- G03F7/004—Photosensitive materials
- G03F7/0042—Photosensitive materials with inorganic or organometallic light-sensitive compounds not otherwise provided for, e.g. inorganic resists
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Printing Plates And Materials Therefor (AREA)
- Photosensitive Polymer And Photoresist Processing (AREA)
Abstract
Light-sensitive materials are known which have a support carrying one or more layers of (a) an inorganic material (such as a chalcogenide or a halide) and (b) a metal or sulphide, halide or oxide of a metal; upon exposure to light a reaction occurs which alters the hydrophilic nature of the surface of the layer so as to make the material suitable after imagewise exposure for use directly as a lithographic printing plate. The invention provides a process of treating such a material after imagewise exposure (i.e. a printing plate) so as to increase the hydrophilic or oleophilic nature of an exposed or unexposed part of the plate, by wetting the exposed surface with an aqueous solution of (i) thiourea or a substituted thiourea preferably of a specified general formula (I) e.g. N-ethylthiourea, preferably in concentration of 0.1 to 30%, and (ii) an acid or an acidic inorganic salt, preferably 0.01 to 20% of the solution, possibly with an organic solvent. The light-sensitive layer(s) may also include various organic additives, e.g. benzotriazole, dyes, and sulfur- containing compounds.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6515177A JPS5416206A (en) | 1977-06-02 | 1977-06-02 | Method of making flat printing plate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB2001584A true GB2001584A (en) | 1979-02-07 |
| GB2001584B GB2001584B (en) | 1982-01-06 |
Family
ID=13278582
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB787826278A Expired GB2001584B (en) | 1977-06-02 | 1978-06-02 | Process for treating a lithographic printing plate |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JPS5416206A (en) |
| DE (1) | DE2824251A1 (en) |
| GB (1) | GB2001584B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1621338A1 (en) * | 2004-07-27 | 2006-02-01 | Fuji Photo Film Co., Ltd. | Lithographic printing plate precursor and lithographic printing method |
-
1977
- 1977-06-02 JP JP6515177A patent/JPS5416206A/en active Pending
-
1978
- 1978-06-02 GB GB787826278A patent/GB2001584B/en not_active Expired
- 1978-06-02 DE DE19782824251 patent/DE2824251A1/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1621338A1 (en) * | 2004-07-27 | 2006-02-01 | Fuji Photo Film Co., Ltd. | Lithographic printing plate precursor and lithographic printing method |
| US7425406B2 (en) | 2004-07-27 | 2008-09-16 | Fujifilm Corporation | Lithographic printing plate precursor and lithographic printing method |
Also Published As
| Publication number | Publication date |
|---|---|
| DE2824251A1 (en) | 1978-12-14 |
| JPS5416206A (en) | 1979-02-06 |
| GB2001584B (en) | 1982-01-06 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PG | Patent granted |