JPS6438483A - Ink additive for lithography - Google Patents
Ink additive for lithographyInfo
- Publication number
- JPS6438483A JPS6438483A JP62194933A JP19493387A JPS6438483A JP S6438483 A JPS6438483 A JP S6438483A JP 62194933 A JP62194933 A JP 62194933A JP 19493387 A JP19493387 A JP 19493387A JP S6438483 A JPS6438483 A JP S6438483A
- Authority
- JP
- Japan
- Prior art keywords
- ink
- formula
- lithography
- additive
- greasing
- 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
- Inks, Pencil-Leads, Or Crayons (AREA)
Abstract
PURPOSE:To provide an ink additive for lithography which can attain desirable prevention of greasing in an ink and a printing plate both for use with a rotary press for offset printing and simultaneously can give an excellent printed matter with high ink density, and which comprises a compd. having a terminal hydroxyl group, represented by a particular formula. CONSTITUTION:The ink additive for lithography of the invention comprises a compd. of formula I (wherein either of A and B is a unit of formula II, the other being a unit of formula III or IV; a, b, c, d and e may by 0; and R is H or an org. group) which is a polymer having an MW of at least 400 and in which at least 4 moles of formula II units are present. This ink additive can attain extremely desirable prevention of greasing in an ink and a printing plate both for use with a rotary press for offset printing which are likely to suffer from greasing. Further, the ink additive can give an excellent printed matter with high ink density. Still further, since inorg. particles, such as colloidal silica, are not always needed after printing plate treatment, it is possible to obtain a printed matter having an increased ink density.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62194933A JPS6438483A (en) | 1987-08-03 | 1987-08-03 | Ink additive for lithography |
| EP88112547A EP0302450B2 (en) | 1987-08-03 | 1988-08-02 | Lithographic printing ink additive |
| DE3882179T DE3882179T3 (en) | 1987-08-03 | 1988-08-02 | Additive for lithographic printing ink. |
| US07/228,001 US5174815A (en) | 1987-08-03 | 1988-08-03 | Lithographic printing ink additive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62194933A JPS6438483A (en) | 1987-08-03 | 1987-08-03 | Ink additive for lithography |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6438483A true JPS6438483A (en) | 1989-02-08 |
Family
ID=16332755
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62194933A Pending JPS6438483A (en) | 1987-08-03 | 1987-08-03 | Ink additive for lithography |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6438483A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001279148A (en) * | 2000-03-29 | 2001-10-10 | Dainippon Ink & Chem Inc | Printing ink composition and coating method therewith |
-
1987
- 1987-08-03 JP JP62194933A patent/JPS6438483A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001279148A (en) * | 2000-03-29 | 2001-10-10 | Dainippon Ink & Chem Inc | Printing ink composition and coating method therewith |
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