JPS5657861A - Magnetic ink for recording - Google Patents

Magnetic ink for recording

Info

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
Application number
JP13456279A
Other languages
Japanese (ja)
Inventor
Yoshio Kishimoto
Yoichi Sekine
Wataru Shimoma
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP13456279A priority Critical patent/JPS5657861A/en
Publication of JPS5657861A publication Critical patent/JPS5657861A/en
Pending legal-status Critical Current

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
JP13456279A 1979-10-17 1979-10-17 Magnetic ink for recording Pending JPS5657861A (en)

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)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3714783A1 (en) * 1987-05-04 1988-11-24 Rainer Kuenstler Printing ink and use thereof

Cited By (1)

* Cited by examiner, † Cited by third party
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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