JPS5724292A - Original plate for direct picturing type planography - Google Patents
Original plate for direct picturing type planographyInfo
- Publication number
- JPS5724292A JPS5724292A JP9964880A JP9964880A JPS5724292A JP S5724292 A JPS5724292 A JP S5724292A JP 9964880 A JP9964880 A JP 9964880A JP 9964880 A JP9964880 A JP 9964880A JP S5724292 A JPS5724292 A JP S5724292A
- Authority
- JP
- Japan
- Prior art keywords
- polyvinyl alcohol
- denatured polyvinyl
- image
- receiving layer
- 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.)
- Pending
Links
Landscapes
- Printing Plates And Materials Therefor (AREA)
Abstract
PURPOSE: To provide a master free of stains on the texture by providing a blend of an inorganic pigment and a denatured polyvinyl alcohol on a support.
CONSTITUTION: An image-receiving layer consisting of an inorganic pigment such as a clay, calcium carbonate and zinc oxide and a specified denatured polyvinyl alcohol is provided on a water-resistant support consisting of wood free paper increased in wet strength by a melamine-formaldehyde resin or a urea-formaldehyde resin or other similar material. For producing an original plate for direct picturing type planography, an aqueous solution containing a denatured polyvinyl alcohol and an inorganic pigment is coated on the water-resistant support and is dried at 100W150°C to form an image-receiving layer of about 5W20μm in thickness. Accordingly, since the denatured polyvinyl alcohol is made to be water-resistant and hydrophilic by heat or by a cross-linking agent when the image-receiving layer is formed, a master free of texture stains and excellent in durability can be produced.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9964880A JPS5724292A (en) | 1980-07-21 | 1980-07-21 | Original plate for direct picturing type planography |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9964880A JPS5724292A (en) | 1980-07-21 | 1980-07-21 | Original plate for direct picturing type planography |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5724292A true JPS5724292A (en) | 1982-02-08 |
Family
ID=14252870
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9964880A Pending JPS5724292A (en) | 1980-07-21 | 1980-07-21 | Original plate for direct picturing type planography |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5724292A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6166697A (en) * | 1984-09-11 | 1986-04-05 | Mitsubishi Paper Mills Ltd | Direct-descriptive type offset printing plate |
-
1980
- 1980-07-21 JP JP9964880A patent/JPS5724292A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6166697A (en) * | 1984-09-11 | 1986-04-05 | Mitsubishi Paper Mills Ltd | Direct-descriptive type offset printing plate |
JPH0517040B2 (en) * | 1984-09-11 | 1993-03-08 | Mitsubishi Paper Mills Ltd |
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