JPS5521081A - Preparation of colorant for wet type electrophotographic toner - Google Patents
Preparation of colorant for wet type electrophotographic tonerInfo
- Publication number
- JPS5521081A JPS5521081A JP9491478A JP9491478A JPS5521081A JP S5521081 A JPS5521081 A JP S5521081A JP 9491478 A JP9491478 A JP 9491478A JP 9491478 A JP9491478 A JP 9491478A JP S5521081 A JPS5521081 A JP S5521081A
- Authority
- JP
- Japan
- Prior art keywords
- water
- colorant
- wet type
- electrophotographic toner
- type electrophotographic
- 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
- Liquid Developers In Electrophotography (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
PURPOSE: To eliminate deterioration of image density and ground stain without requiring no troublesome measures in spite of using a resin soluble in a carrier fluid, by using a flashing method to coat an organic pigment and carbon black with a specified resin.
CONSTITUTION: An organic pigment and carbon black are kneaded in water, to form a water-containing paste. A solution of an aromatic or aliphatic hydrocarbon resin soluble in an aliphatic hydrocarbon of 1010ohm.cm or more resistivity and 3 or less relative dielectric constant, such as n-hexane with a solubility above 40% is kneaded with the above paste, and water and organic solvents, etc. are evaporated. The cake obtained is pulverized and thus, a colorant is prepared for wet type electrophotographic toner.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP53094914A JPS589417B2 (en) | 1978-08-03 | 1978-08-03 | Manufacturing method of colorant for wet electrophotographic toner |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP53094914A JPS589417B2 (en) | 1978-08-03 | 1978-08-03 | Manufacturing method of colorant for wet electrophotographic toner |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5521081A true JPS5521081A (en) | 1980-02-14 |
JPS589417B2 JPS589417B2 (en) | 1983-02-21 |
Family
ID=14123260
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP53094914A Expired JPS589417B2 (en) | 1978-08-03 | 1978-08-03 | Manufacturing method of colorant for wet electrophotographic toner |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS589417B2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57186758A (en) * | 1981-05-13 | 1982-11-17 | Ricoh Co Ltd | Manufacture of colorant for electrostatic photographic toner |
JPS57186759A (en) * | 1981-05-13 | 1982-11-17 | Ricoh Co Ltd | Liquid developer for electrostatic photography |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5182626A (en) * | 1974-12-28 | 1976-07-20 | Ricoh Kk |
-
1978
- 1978-08-03 JP JP53094914A patent/JPS589417B2/en not_active Expired
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5182626A (en) * | 1974-12-28 | 1976-07-20 | Ricoh Kk |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57186758A (en) * | 1981-05-13 | 1982-11-17 | Ricoh Co Ltd | Manufacture of colorant for electrostatic photographic toner |
JPS57186759A (en) * | 1981-05-13 | 1982-11-17 | Ricoh Co Ltd | Liquid developer for electrostatic photography |
JPH0315740B2 (en) * | 1981-05-13 | 1991-03-01 | Ricoh Kk | |
JPH0352624B2 (en) * | 1981-05-13 | 1991-08-12 | Ricoh Kk |
Also Published As
Publication number | Publication date |
---|---|
JPS589417B2 (en) | 1983-02-21 |
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