JPS5635143A - Electrophotographic toner for reversal developing system - Google Patents
Electrophotographic toner for reversal developing systemInfo
- Publication number
- JPS5635143A JPS5635143A JP11123679A JP11123679A JPS5635143A JP S5635143 A JPS5635143 A JP S5635143A JP 11123679 A JP11123679 A JP 11123679A JP 11123679 A JP11123679 A JP 11123679A JP S5635143 A JPS5635143 A JP S5635143A
- Authority
- JP
- Japan
- Prior art keywords
- suspension
- toner
- styrene
- per
- aqueous
- 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)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
PURPOSE: To obtain a toner having superior characteristics, by adding a fatty acid- modified nigrosine to a copolymer obtained by aqueous-suspension polymerizing butyl methacrylate and styrene in presence of specified inorganic and organic dispersion stahilizers and a neutral water-soluble inorganic salt.
CONSTITUTION: One pt.wt. butyl methacrylate and 1W4pts.wt. styrene are aqueous-suspension polymerized in presence of basic tricalcium phosphate powder bt 0.1W0.5pt.wt. per 100pts.wt monomer mixture and sodium dodecylbenzenesulfonate by 0.01W0.035pt.wt. per said 1pt.wt. calcium salt for stabilizing the suspension, and a water-soluble neutral salt, such as NaCl by 0.02W0.1pt.wt. per 100pts.wt. monomer mixture for preventing deterioration of transparency and electric characteristics of the polymer particles. Five pts. wt. fatty acid-modified nigrosine dye is added to 85pts.wt. copolymer particles thus obtained, together with carbon black etc., mixed by fusing, and after cooling, classified to obtain a 5W30μ toner.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP54111236A JPS5926021B2 (en) | 1979-08-30 | 1979-08-30 | Reversal development type electrophotographic toner |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP54111236A JPS5926021B2 (en) | 1979-08-30 | 1979-08-30 | Reversal development type electrophotographic toner |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5635143A true JPS5635143A (en) | 1981-04-07 |
JPS5926021B2 JPS5926021B2 (en) | 1984-06-23 |
Family
ID=14556013
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP54111236A Expired JPS5926021B2 (en) | 1979-08-30 | 1979-08-30 | Reversal development type electrophotographic toner |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5926021B2 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5362865A (en) * | 1977-06-10 | 1978-06-05 | Sugyo Kk | Production of food having mooth feel simillar to unbound crab meat by utilizing boiled fish paste |
JPS56130762A (en) * | 1980-03-17 | 1981-10-13 | Konishiroku Photo Ind Co Ltd | Manufacture of toner for electrostatic charge development |
JPS60254051A (en) * | 1984-05-30 | 1985-12-14 | Hitachi Chem Co Ltd | Manufacture of electrophotographic toner |
JPH10324807A (en) * | 1996-04-23 | 1998-12-08 | Orient Chem Ind Ltd | Colored thermoplastic resin composition |
-
1979
- 1979-08-30 JP JP54111236A patent/JPS5926021B2/en not_active Expired
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5362865A (en) * | 1977-06-10 | 1978-06-05 | Sugyo Kk | Production of food having mooth feel simillar to unbound crab meat by utilizing boiled fish paste |
JPS5635143B2 (en) * | 1977-06-10 | 1981-08-14 | ||
JPS56130762A (en) * | 1980-03-17 | 1981-10-13 | Konishiroku Photo Ind Co Ltd | Manufacture of toner for electrostatic charge development |
JPS6345101B2 (en) * | 1980-03-17 | 1988-09-08 | Konika Kk | |
JPS60254051A (en) * | 1984-05-30 | 1985-12-14 | Hitachi Chem Co Ltd | Manufacture of electrophotographic toner |
JPH10324807A (en) * | 1996-04-23 | 1998-12-08 | Orient Chem Ind Ltd | Colored thermoplastic resin composition |
Also Published As
Publication number | Publication date |
---|---|
JPS5926021B2 (en) | 1984-06-23 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB1450481A (en) | Developer composition and developing method | |
KR890013528A (en) | Toner for developing electrostatic images and its preparation | |
ES8403327A1 (en) | Cationic polymer compositions | |
JPS56130762A (en) | Manufacture of toner for electrostatic charge development | |
JPS6415752A (en) | Electrophotographic toner | |
GB1319815A (en) | Preparation of electrophotographic developers | |
JPS5741649A (en) | Electrostatic image developing toner and its manufacture | |
JPS5635143A (en) | Electrophotographic toner for reversal developing system | |
JPS5781271A (en) | Toner for developing electrostatic charge image and its production | |
JPS57211157A (en) | Resin composition for electrophotographic toner | |
DE3780623D1 (en) | MELTABLE ELECTROSTATICALLY DRIVABLE DEVELOPER. | |
JPS59218459A (en) | Toner for developing electrostatic charge image | |
JPS56110947A (en) | Toner for electrostatic charge image development and its production | |
JPS56110945A (en) | Toner for electrostatic charge image development and its production | |
JPS56110946A (en) | Toner for electrostatic charge image development and its production | |
JPS6470766A (en) | Developer composition having high transfer efficiency | |
JPS57114149A (en) | Electrostatic latent image developing toner | |
JPS57114147A (en) | Toner for developing electrostatic charge image | |
JPS55151648A (en) | Toner for electrophotographic development | |
JPS56130761A (en) | Manufacture of toner for electrostatic charge development | |
JPS56113143A (en) | Electrostatic image developing toner and its manufacture | |
KR910700485A (en) | Positive solid block toner | |
JPS57114150A (en) | Electrostatic latent image developing toner | |
JPS64962A (en) | Preparation of electrophotographic toner | |
JPS57172348A (en) | Electrostatic image developing toner |