JPS5595955A - Electrostatically photographic liquid developer - Google Patents
Electrostatically photographic liquid developerInfo
- Publication number
- JPS5595955A JPS5595955A JP355579A JP355579A JPS5595955A JP S5595955 A JPS5595955 A JP S5595955A JP 355579 A JP355579 A JP 355579A JP 355579 A JP355579 A JP 355579A JP S5595955 A JPS5595955 A JP S5595955A
- Authority
- JP
- Japan
- Prior art keywords
- developer
- alkyl
- electrostatically
- liquid developer
- resin
- 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
Abstract
PURPOSE: To form a high-density clear image free from a ground stain by using a specified alkylamine carboxylate as a polarity controller to prevent a deterioration of a developer with the passage of time.
CONSTITUTION: Laurylamine palmitate or the like represented by the formula (where R1 is 1W18C alkyl; R2 is H or 1W18C alkyl; and one or more of R1 and R2 are 1W18C alkyl) is added as a polarity controller to an electrostatically photographic liquid developer. The amt. of the controller used is about 0.003W1pt.wt. to 1pt.wt. of a coloring agent or resin. The developer is prepared as follows: for example, the coloring agent and resin are kneaded with a little carrier fluid, and the resulting concentrated toner is dispersed in much carrier fluid such as isoparaffin together with an alkylamine carboxylate. This developer does not deteriorate over a long time and gives a high-density clear image.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP355579A JPS5595955A (en) | 1979-01-16 | 1979-01-16 | Electrostatically photographic liquid developer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP355579A JPS5595955A (en) | 1979-01-16 | 1979-01-16 | Electrostatically photographic liquid developer |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5595955A true JPS5595955A (en) | 1980-07-21 |
Family
ID=11560664
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP355579A Pending JPS5595955A (en) | 1979-01-16 | 1979-01-16 | Electrostatically photographic liquid developer |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5595955A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4594305A (en) * | 1984-06-15 | 1986-06-10 | Hoechst Aktiengesellschaft | Liquid developer and charge control substance suitable therefor |
JPS6234170A (en) * | 1985-08-08 | 1987-02-14 | Mitsubishi Paper Mills Ltd | Electrophotographic liquid developer |
-
1979
- 1979-01-16 JP JP355579A patent/JPS5595955A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4594305A (en) * | 1984-06-15 | 1986-06-10 | Hoechst Aktiengesellschaft | Liquid developer and charge control substance suitable therefor |
JPS6234170A (en) * | 1985-08-08 | 1987-02-14 | Mitsubishi Paper Mills Ltd | Electrophotographic liquid developer |
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