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JPS5614570A - Color-changeable writing ink - Google Patents

Color-changeable writing ink

Info

Publication number
JPS5614570A
JPS5614570A JP8999479A JP8999479A JPS5614570A JP S5614570 A JPS5614570 A JP S5614570A JP 8999479 A JP8999479 A JP 8999479A JP 8999479 A JP8999479 A JP 8999479A JP S5614570 A JPS5614570 A JP S5614570A
Authority
JP
Japan
Prior art keywords
decolorizing agent
coloring matters
writing
pref
org
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
Application number
JP8999479A
Other languages
Japanese (ja)
Other versions
JPS6228834B2 (en
Inventor
Yoshiharu Suzuki
Takao Machida
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.)
AUTO KK
OOTO KK
Original Assignee
AUTO KK
OOTO KK
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 AUTO KK, OOTO KK filed Critical AUTO KK
Priority to JP8999479A priority Critical patent/JPS5614570A/en
Publication of JPS5614570A publication Critical patent/JPS5614570A/en
Publication of JPS6228834B2 publication Critical patent/JPS6228834B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Mechanical Pencils And Projecting And Retracting Systems Therefor, And Multi-System Writing Instruments (AREA)
  • Inks, Pencil-Leads, Or Crayons (AREA)

Abstract

PURPOSE: To provide a titled ink capable of emphasizing peripheral color tone by erasing erasable coloring matters by a decolorizing agent after writing, obtained by compounding an erasable coloring matters with a hardly erasable coloring matters by a decolorizing agent.
CONSTITUTION: (a) Coloring matters such as a cationic dyestuff, a basic dyestuff and salt-forming compounds between these dyestuffs and an org. acid salt capable of being erased by a decolorizing agent and (b) coloring matters such as org. pigments or alcohol-soluble metallic complex dyestuffs hardly erased by a decolorizing agent are blended by using water or a solvent to obtain an objective color-changeable writing ink. As a decolorizing agent, e.g., a mixed solution comprising sodium hydroxide, sodium hydrosulfite, sodium bisulfite, polyethylene glycol and water is pref. used. Moreover, it is pref. to provide a decolorizing agent receiving portion 4 and a decolorizing agent smearing portion 5 to a writing pen 1.
COPYRIGHT: (C)1981,JPO&Japio
JP8999479A 1979-07-16 1979-07-16 Color-changeable writing ink Granted JPS5614570A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8999479A JPS5614570A (en) 1979-07-16 1979-07-16 Color-changeable writing ink

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8999479A JPS5614570A (en) 1979-07-16 1979-07-16 Color-changeable writing ink

Publications (2)

Publication Number Publication Date
JPS5614570A true JPS5614570A (en) 1981-02-12
JPS6228834B2 JPS6228834B2 (en) 1987-06-23

Family

ID=13986160

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8999479A Granted JPS5614570A (en) 1979-07-16 1979-07-16 Color-changeable writing ink

Country Status (1)

Country Link
JP (1) JPS5614570A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58157873A (en) * 1982-03-15 1983-09-20 Toppan Printing Co Ltd Indelible printing ink
JPS61235367A (en) * 1985-04-08 1986-10-20 Murao Boki Kk Feeding unit for various kinds of threads with rewinder
JP2003073602A (en) * 2001-09-06 2003-03-12 Zebra Pen Corp Water ink for writing utensil and writing utensil filled with the same
JP2008524426A (en) * 2004-12-21 2008-07-10 サンフォード エル．ピー． Highlighting method with reversible highlighting mixture, highlighting kit and highlighted complex
JP2015193682A (en) * 2014-03-31 2015-11-05 株式会社パイロットコーポレーション Ink composition for oil-based ballpoint pen and oil-based ballpoint pen using the same

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4846406A (en) * 1971-10-19 1973-07-03
JPS53127031A (en) * 1977-04-09 1978-11-06 Uchida Yoko Kk Marking ink composition

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4846406A (en) * 1971-10-19 1973-07-03
JPS53127031A (en) * 1977-04-09 1978-11-06 Uchida Yoko Kk Marking ink composition

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58157873A (en) * 1982-03-15 1983-09-20 Toppan Printing Co Ltd Indelible printing ink
JPS61235367A (en) * 1985-04-08 1986-10-20 Murao Boki Kk Feeding unit for various kinds of threads with rewinder
JPH0211505B2 (en) * 1985-04-08 1990-03-14 Murao Boki Kk
JP2003073602A (en) * 2001-09-06 2003-03-12 Zebra Pen Corp Water ink for writing utensil and writing utensil filled with the same
JP2008524426A (en) * 2004-12-21 2008-07-10 サンフォード エル．ピー． Highlighting method with reversible highlighting mixture, highlighting kit and highlighted complex
JP2015193682A (en) * 2014-03-31 2015-11-05 株式会社パイロットコーポレーション Ink composition for oil-based ballpoint pen and oil-based ballpoint pen using the same

Also Published As

Publication number Publication date
JPS6228834B2 (en) 1987-06-23

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