JPS5657861A - Magnetic ink for recording - Google Patents
Magnetic ink for recordingInfo
- Publication number
- JPS5657861A JPS5657861A JP13456279A JP13456279A JPS5657861A JP S5657861 A JPS5657861 A JP S5657861A JP 13456279 A JP13456279 A JP 13456279A JP 13456279 A JP13456279 A JP 13456279A JP S5657861 A JPS5657861 A JP S5657861A
- Authority
- JP
- Japan
- Prior art keywords
- pigment
- black
- ink
- dispersing
- antioxidant
- 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
- Ink Jet (AREA)
- Recording Measured Values (AREA)
- Inks, Pencil-Leads, Or Crayons (AREA)
Abstract
PURPOSE: To prepare the titled ink having high blackness and giving a clear and stable black image, by dispersing or dissolving an antioxidant, a dye and a pigment stably in a specific magnetic fluid ink.
CONSTITUTION: The objective ink is obtained by dissolving or dispersing (A) an antioxidant such as an amine compound, hindered phenolic compound, etc., (B) a blue or black dye, and/or (C) a blue and/or black pigment, in (D) a magnetic fluid consisting of a stable colloidal dispersion of magnetite in a dispersing medium such as paraffin containing a surface active agent as a dispersant. An organic pigment such as carbon black, a phthalocyanine pigment, etc. is superior to an inorganic pigment as the component (C).
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13456279A JPS5657861A (en) | 1979-10-17 | 1979-10-17 | Magnetic ink for recording |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13456279A JPS5657861A (en) | 1979-10-17 | 1979-10-17 | Magnetic ink for recording |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5657861A true JPS5657861A (en) | 1981-05-20 |
Family
ID=15131227
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13456279A Pending JPS5657861A (en) | 1979-10-17 | 1979-10-17 | Magnetic ink for recording |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5657861A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3714783A1 (en) * | 1987-05-04 | 1988-11-24 | Rainer Kuenstler | Printing ink and use thereof |
-
1979
- 1979-10-17 JP JP13456279A patent/JPS5657861A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3714783A1 (en) * | 1987-05-04 | 1988-11-24 | Rainer Kuenstler | Printing ink and use thereof |
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