JPS5680055A - Manufacture of coloring agent for electrostatic photographic toner - Google Patents
Manufacture of coloring agent for electrostatic photographic tonerInfo
- Publication number
- JPS5680055A JPS5680055A JP15780779A JP15780779A JPS5680055A JP S5680055 A JPS5680055 A JP S5680055A JP 15780779 A JP15780779 A JP 15780779A JP 15780779 A JP15780779 A JP 15780779A JP S5680055 A JPS5680055 A JP S5680055A
- Authority
- JP
- Japan
- Prior art keywords
- toner
- manufacture
- coloring agent
- unsatd
- acrylate
- 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.)
- Granted
Links
Landscapes
- Developing Agents For Electrophotography (AREA)
Abstract
PURPOSE: To obtain a clear image of high density by using a copolymer of a specified (meth)acrylate and a monomer such as unsatd. carboxylic acid (anhydride) or glycidyl (meth)acrylate as resin for a coloring agent for a flashing method toner.
CONSTITUTION: A soln. of a copolymer of monomer A represented by the formula (where R is H or CH3 and n is 1W4) and one or more kinds of monomers B selected from unsatd. carboxylic acid, unsatd. carboxylic anhydride, glycidyl methacrylate and glycidyl acrylate in an org. solvent such as toluene is kneaded with a hydrated cake of carbon black and org. pigment. The kneaded material is then freed of the water and solvent in succession, and the resulting lumps are pulverized to manufacture a coloring agent. This agent is kneaded with a binder and pulverized to manufacture a toner. The pigment particles of the toner are not exposed to the sur face, and the toner is not made too fine. Thus, a favorable image is obtd.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15780779A JPS5680055A (en) | 1979-12-04 | 1979-12-04 | Manufacture of coloring agent for electrostatic photographic toner |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15780779A JPS5680055A (en) | 1979-12-04 | 1979-12-04 | Manufacture of coloring agent for electrostatic photographic toner |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5680055A true JPS5680055A (en) | 1981-07-01 |
JPS6350699B2 JPS6350699B2 (en) | 1988-10-11 |
Family
ID=15657709
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15780779A Granted JPS5680055A (en) | 1979-12-04 | 1979-12-04 | Manufacture of coloring agent for electrostatic photographic toner |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5680055A (en) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5187043A (en) * | 1975-01-29 | 1976-07-30 | Kopia Kk | |
JPS545435A (en) * | 1977-06-15 | 1979-01-16 | Ricoh Co Ltd | Developer for electropotography |
JPS5423539A (en) * | 1977-07-25 | 1979-02-22 | Fuji Xerox Co Ltd | Electrophotographic toner composition |
-
1979
- 1979-12-04 JP JP15780779A patent/JPS5680055A/en active Granted
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5187043A (en) * | 1975-01-29 | 1976-07-30 | Kopia Kk | |
JPS545435A (en) * | 1977-06-15 | 1979-01-16 | Ricoh Co Ltd | Developer for electropotography |
JPS5423539A (en) * | 1977-07-25 | 1979-02-22 | Fuji Xerox Co Ltd | Electrophotographic toner composition |
Also Published As
Publication number | Publication date |
---|---|
JPS6350699B2 (en) | 1988-10-11 |
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