GB772112A - Coated paper product for planographic printing masters - Google Patents
Coated paper product for planographic printing mastersInfo
- Publication number
- GB772112A GB772112A GB1927055A GB1927055A GB772112A GB 772112 A GB772112 A GB 772112A GB 1927055 A GB1927055 A GB 1927055A GB 1927055 A GB1927055 A GB 1927055A GB 772112 A GB772112 A GB 772112A
- Authority
- GB
- United Kingdom
- Prior art keywords
- coating
- paper
- salt
- weight
- water
- 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
- B41C1/00—Forme preparation
- B41C1/10—Forme preparation for lithographic printing; Master sheets for transferring a lithographic image to the forme
- B41C1/1091—Forme preparation for lithographic printing; Master sheets for transferring a lithographic image to the forme by physical transfer from a donor sheet having an uniform coating of lithographic material using thermal means as provided by a thermal head or a laser; by mechanical pressure, e.g. from a typewriter by electrical recording ribbon therefor
-
- 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
- B41N3/036—Chemical or electrical pretreatment characterised by the presence of a polymeric hydrophilic coating
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Optics & Photonics (AREA)
- Manufacturing & Machinery (AREA)
- Printing Plates And Materials Therefor (AREA)
Abstract
772,112. Coated paper. WARREN CO., S. D. July 4, 1955, No. 19270/55. Class 96. [Also in Group XVI] A planographic printing plate comprises a paper-base and a coating thereon containing finely divided inert mineral pigment, a watersoluble, water-stable acetate or formate of calcium, strontium, barium, cadmium, zinc and bivalent copper, nickel, cobalt, iron, lead, manganese, or mercury and an insolubilized hydrophilic adhesive which is not coagulated by the salt, the weight of which salt is from 5-40per cent of the total weight of the coating. The coating consists of the evaporation residue of the salt, an adhesive of starch, polyvinyl alcohol, sodium cellulose sulphate carboxymethyl cellulose or hydroxyethyl cellulose, and a watersoluble partially condensed urea-aldehyde, or melamine-aldehyde resin for rendering the coating water-insoluble when dried by heat. In an example about 10 pounds, dry weight, per ream of a mixture of 100 parts by weight of paper-coating clay, 40 of starch, 40 of zinc acetate, 14 of melamine-formaldehyde condensate, 3.5 of monochloracetic acid (to control the pH value) and 25 of proponal (foam dispersant) together with water to make the solid content about 30 per cent was applied to paper, which was then dried, supercalendered and inscribed with a typewritten image. Specifications 633,747, 633,796, [both in Group XVI], and 746,226 are referred to.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1927055A GB772112A (en) | 1955-07-04 | 1955-07-04 | Coated paper product for planographic printing masters |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1927055A GB772112A (en) | 1955-07-04 | 1955-07-04 | Coated paper product for planographic printing masters |
Publications (1)
Publication Number | Publication Date |
---|---|
GB772112A true GB772112A (en) | 1957-04-10 |
Family
ID=10126605
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1927055A Expired GB772112A (en) | 1955-07-04 | 1955-07-04 | Coated paper product for planographic printing masters |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB772112A (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3115829A (en) * | 1958-12-03 | 1963-12-31 | Int Paper Co | Planographic printing plates |
US3469983A (en) * | 1965-07-06 | 1969-09-30 | Gaf Corp | Preparation of photopolymer lithographic offset paper plates |
FR2211675A1 (en) * | 1972-12-22 | 1974-07-19 | Eastman Kodak Co | |
FR2211674A1 (en) * | 1972-12-22 | 1974-07-19 | Eastman Kodak Co | |
EP0008394A1 (en) * | 1978-08-10 | 1980-03-05 | Hoechst Aktiengesellschaft | Process for developing exposed light-sensitive printing plates containing o-naphthoquinone diazides |
WO2000046039A1 (en) * | 1999-02-04 | 2000-08-10 | Kodak Polychrome Graphics Company Ltd. | Hydrophilized porous substrate for use in lithographic printing plates |
-
1955
- 1955-07-04 GB GB1927055A patent/GB772112A/en not_active Expired
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3115829A (en) * | 1958-12-03 | 1963-12-31 | Int Paper Co | Planographic printing plates |
US3469983A (en) * | 1965-07-06 | 1969-09-30 | Gaf Corp | Preparation of photopolymer lithographic offset paper plates |
FR2211675A1 (en) * | 1972-12-22 | 1974-07-19 | Eastman Kodak Co | |
FR2211674A1 (en) * | 1972-12-22 | 1974-07-19 | Eastman Kodak Co | |
EP0008394A1 (en) * | 1978-08-10 | 1980-03-05 | Hoechst Aktiengesellschaft | Process for developing exposed light-sensitive printing plates containing o-naphthoquinone diazides |
WO2000046039A1 (en) * | 1999-02-04 | 2000-08-10 | Kodak Polychrome Graphics Company Ltd. | Hydrophilized porous substrate for use in lithographic printing plates |
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