JPS56120777A - Ink composition for ball point pen - Google Patents
Ink composition for ball point penInfo
- Publication number
- JPS56120777A JPS56120777A JP2436280A JP2436280A JPS56120777A JP S56120777 A JPS56120777 A JP S56120777A JP 2436280 A JP2436280 A JP 2436280A JP 2436280 A JP2436280 A JP 2436280A JP S56120777 A JPS56120777 A JP S56120777A
- Authority
- JP
- Japan
- Prior art keywords
- point pen
- ball point
- colorant
- solvent
- ink
- 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: The titled composition, having improved ink extrudability even with a minimum amount of a solvent for improving the trace drying property, and prepare by adding earthy graphite to an ink for a ball point pen consisting of a colorant, e.g. a dye, a high polymer and a solvent.
CONSTITUTION: A composition prepared by adding preferably 1W15wt% earthy graphite to an ink for a ball point pen consisting of a colorant, e.g. a dye or pigment, a high polymer, e.g. ketone resin, and a solvent for the high polymer, e.g. benzyl alcohol. In the case of the dye used as the colorant, the earthy graphite is added to a dissolved ink and mixed and dispersed by a three-roll mill. In the case of the pigment used as the colorant, the pigment and the earthy graphite are kneaded with the high polymer and dispersed and then dissolved in the solvent.
USE: An open type ball point pen of ordinary pressure and a closed ball point pen of high pressure structure.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2436280A JPS56120777A (en) | 1980-02-28 | 1980-02-28 | Ink composition for ball point pen |
| PCT/JP1980/000318 WO1981001858A1 (en) | 1979-12-26 | 1980-12-22 | Erasable ball-point pen ink composition |
| EP19810900078 EP0042438B1 (en) | 1979-12-26 | 1980-12-22 | Erasable ball-point pen ink composition |
| DE8181900078T DE3066066D1 (en) | 1979-12-26 | 1980-12-22 | Erasable ball-point pen ink composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2436280A JPS56120777A (en) | 1980-02-28 | 1980-02-28 | Ink composition for ball point pen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS56120777A true JPS56120777A (en) | 1981-09-22 |
Family
ID=12136078
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2436280A Pending JPS56120777A (en) | 1979-12-26 | 1980-02-28 | Ink composition for ball point pen |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS56120777A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01275678A (en) * | 1988-04-27 | 1989-11-06 | Pentel Kk | Ink composition for ball point pen |
| US6599353B2 (en) | 2000-04-20 | 2003-07-29 | Berol Corporation | Shear-thinning writing compositions, writing instruments, and methods |
-
1980
- 1980-02-28 JP JP2436280A patent/JPS56120777A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01275678A (en) * | 1988-04-27 | 1989-11-06 | Pentel Kk | Ink composition for ball point pen |
| US6599353B2 (en) | 2000-04-20 | 2003-07-29 | Berol Corporation | Shear-thinning writing compositions, writing instruments, and methods |
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