JPS55108478A - Ink composition - Google Patents

Ink composition

Info

Publication number
JPS55108478A
JPS55108478A JP1571079A JP1571079A JPS55108478A JP S55108478 A JPS55108478 A JP S55108478A JP 1571079 A JP1571079 A JP 1571079A JP 1571079 A JP1571079 A JP 1571079A JP S55108478 A JPS55108478 A JP S55108478A
Authority
JP
Japan
Prior art keywords
water
ink composition
dispersant
needed
added
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
JP1571079A
Other languages
Japanese (ja)
Inventor
Yasuo Yamagishi
Kiyohide Muramatsu
Toshiaki Narisawa
Akio Yagishita
Seiji Okada
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP1571079A priority Critical patent/JPS55108478A/en
Publication of JPS55108478A publication Critical patent/JPS55108478A/en
Pending legal-status Critical Current

Links

Landscapes

  • Inks, Pencil-Leads, Or Crayons (AREA)

Abstract

PURPOSE: An ink composition which absorbs infrared ray and is discernable by optical character recognizer after printing, consisting of fine magnetite particles subjected to a water-repellent treatment, a dispersant, a water-soluble direct dye, and ethylene glycol.
CONSTITUTION: An ink composition contains fine magnetite particles (A) whose surfaces are subjected to a water-repellent treatment, a water-dispersant (B) for the fine particles (A), e.g., a dodecylbenzenesulfonate, polyethylene nonylphenol ether, or nonylphenoxypolyethyleneoxyethanol, 1W10pts.wt. of a water-soluble direct dye (C) showing a high absorption in visible ray region and 5W30wt% ethylene glycol or polyethylene glycol, a pH regulator (D) to be added as needed, 1W 1,000ppm of a mildewproofing agnet (E) to be added as needed, and a balance of water.
COPYRIGHT: (C)1980,JPO&Japio
JP1571079A 1979-02-14 1979-02-14 Ink composition Pending JPS55108478A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1571079A JPS55108478A (en) 1979-02-14 1979-02-14 Ink composition

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1571079A JPS55108478A (en) 1979-02-14 1979-02-14 Ink composition

Publications (1)

Publication Number Publication Date
JPS55108478A true JPS55108478A (en) 1980-08-20

Family

ID=11896316

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1571079A Pending JPS55108478A (en) 1979-02-14 1979-02-14 Ink composition

Country Status (1)

Country Link
JP (1) JPS55108478A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61215670A (en) * 1985-03-22 1986-09-25 Seiko Epson Corp Thermoplastic magnetic ink
JPS6480594A (en) * 1987-09-24 1989-03-27 Fujimori Kogyo Co Magnetic recording card
JP2007256807A (en) * 2006-03-24 2007-10-04 Yamaha Corp Keyboard device
KR100821803B1 (en) 2006-09-29 2008-04-14 상 브롤리 컴퍼니 리미티드 Process and compound for producing printed design creating three-dimensional visual effect

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61215670A (en) * 1985-03-22 1986-09-25 Seiko Epson Corp Thermoplastic magnetic ink
JPS6480594A (en) * 1987-09-24 1989-03-27 Fujimori Kogyo Co Magnetic recording card
JP2007256807A (en) * 2006-03-24 2007-10-04 Yamaha Corp Keyboard device
KR100821803B1 (en) 2006-09-29 2008-04-14 상 브롤리 컴퍼니 리미티드 Process and compound for producing printed design creating three-dimensional visual effect

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