GB911222A - A method of producing printing plates - Google Patents
A method of producing printing platesInfo
- Publication number
- GB911222A GB911222A GB21569/59A GB2156959A GB911222A GB 911222 A GB911222 A GB 911222A GB 21569/59 A GB21569/59 A GB 21569/59A GB 2156959 A GB2156959 A GB 2156959A GB 911222 A GB911222 A GB 911222A
- Authority
- GB
- United Kingdom
- Prior art keywords
- inch
- plate
- plastic sheet
- assembly
- thickness
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41C—PROCESSES FOR THE MANUFACTURE OR REPRODUCTION OF PRINTING SURFACES
- B41C3/00—Reproduction or duplicating of printing formes
- B41C3/06—Reproduction or duplicating of printing formes to produce printing blocks from plastics
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Manufacture Or Reproduction Of Printing Formes (AREA)
- Printing Plates And Materials Therefor (AREA)
Abstract
911,222. Printing surfaces. GRAY, A. H. June 20, 1960 [June 23, 1959], No. 21569/59. Class 100 (2). [Also in Group VIII] A method of producing a printing plate comprises placing a synthetic plastic sheet, used to form part of the plate, on a matrix which has been treated with a release agent, superimposing on the sheet a synthetic rubber base, applying pressure to the assembly in a heated press at 150-160‹ C. whereby the plate is moulded and the parts thereof are bonded together, and subsequently cooling the plate in a cooling press at approximately 40‹ C. The plastic sheet may be a copolymer of polyvinyl chloride of a thickness between 0.030 inch and 0.015 inch and the synthetic rubber base may be uncured nitrile rubber of such a thickness as to bring the finished plate to a thickness of between 0.080 inch and 0.100 inch. A cotton or linen control cloth may be inserted between the plastic sheet and rubber base to prevent shrinkage. The assembly is placed in the heated press and the platens of the press are placed in contact with the assembly for 1¢ minutes before the application of pressure so as to soften the plastic sheet. The pressure applied is in the region of 600-1120 1b. per square inch and lasts for ten minutes. The finished plate, being flexible, may be used on a cylinder or on a platen. The matrix used is of " Bakelite " (Registered Trade Mark) and according to the Provisional Specification the release agent may consist of graphite in spirit.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB21569/59A GB911222A (en) | 1959-06-23 | 1959-06-23 | A method of producing printing plates |
FR830732A FR1260449A (en) | 1959-06-23 | 1960-06-22 | Printing plate production process |
CH713460A CH371135A (en) | 1959-06-23 | 1960-06-23 | Manufacturing process of a printing plate |
US209351A US3257944A (en) | 1959-06-23 | 1962-07-12 | Method of producing printing plates |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB21569/59A GB911222A (en) | 1959-06-23 | 1959-06-23 | A method of producing printing plates |
Publications (1)
Publication Number | Publication Date |
---|---|
GB911222A true GB911222A (en) | 1962-11-21 |
Family
ID=10165121
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB21569/59A Expired GB911222A (en) | 1959-06-23 | 1959-06-23 | A method of producing printing plates |
Country Status (3)
Country | Link |
---|---|
US (1) | US3257944A (en) |
CH (1) | CH371135A (en) |
GB (1) | GB911222A (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3427970A (en) * | 1966-09-19 | 1969-02-18 | Printing Plate Supply Co | Method of producing molded printing plates |
US4078031A (en) * | 1974-03-18 | 1978-03-07 | Bishop Homer L | Method of making a magnetic flexible printing plate |
EP1493590A1 (en) * | 2003-07-03 | 2005-01-05 | Sicpa Holding S.A. | Method and means for producing a magnetically induced design in a coating containing magnetic particles |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2028712A (en) * | 1934-05-26 | 1936-01-21 | Bakelite Corp | Printing plate |
US2741297A (en) * | 1952-05-09 | 1956-04-10 | Us Rubber Co | Printing plate material |
US2789500A (en) * | 1953-08-13 | 1957-04-23 | Electrographic Corp | Process of making a printing member |
US2875051A (en) * | 1954-05-03 | 1959-02-24 | Chemical Products Corp | Relief printing plates and method for fabricating the same |
US2791052A (en) * | 1954-11-01 | 1957-05-07 | Gustav A Vasel | Printing plate |
US3091176A (en) * | 1960-08-18 | 1963-05-28 | James F Wall | Plastic printing plates |
-
1959
- 1959-06-23 GB GB21569/59A patent/GB911222A/en not_active Expired
-
1960
- 1960-06-23 CH CH713460A patent/CH371135A/en unknown
-
1962
- 1962-07-12 US US209351A patent/US3257944A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
CH371135A (en) | 1963-08-15 |
US3257944A (en) | 1966-06-28 |
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