JPS6454081A - Writing utensils containing reversibly thermochromic ink - Google Patents

Writing utensils containing reversibly thermochromic ink

Info

Publication number
JPS6454081A
JPS6454081A JP21072187A JP21072187A JPS6454081A JP S6454081 A JPS6454081 A JP S6454081A JP 21072187 A JP21072187 A JP 21072187A JP 21072187 A JP21072187 A JP 21072187A JP S6454081 A JPS6454081 A JP S6454081A
Authority
JP
Japan
Prior art keywords
ink
reversibly thermochromic
writing utensils
writing
organic compound
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
JP21072187A
Other languages
Japanese (ja)
Other versions
JP2540341B2 (en
Inventor
Tsutomu Kito
Katsuyuki Fujita
Kenichi Nakasuji
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.)
Pilot Ink Co Ltd
Original Assignee
Pilot Ink 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 Pilot Ink Co Ltd filed Critical Pilot Ink Co Ltd
Priority to JP21072187A priority Critical patent/JP2540341B2/en
Publication of JPS6454081A publication Critical patent/JPS6454081A/en
Application granted granted Critical
Publication of JP2540341B2 publication Critical patent/JP2540341B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Abstract

PURPOSE:To obtain the title writing utensils which provide smooth discharge of ink and give a writing that will not change with time, by dispersing microcapsules containing a specified reversibly thermochromic composition in an aqueous vehicle to form a water-base ink, and putting this ink into a penholder body. CONSTITUTION:Microcapsules of a diameter of 10mum or less, containing a reversibly thermochromic composition consisting of an electron donating color-forming organic compound, an electron accepting compound, and an organic compound that determines the temperature at which the color changes, are dispersed in an aqueous vehicle composed mainly of a self-emulsifiable dispersion resin having a specific gravity different from said capsules by 0.05 or less, thus giving a water-base ink. This ink is put into a penholder body, to one end of which a pen section having a capillary ink passageway in the axial direction is attached so that the ink is supplied to the pen point of writing utensils by a capillary action through the ink passageway from the rear part of the pen section.
JP21072187A 1987-08-25 1987-08-25 Writing instruments with built-in reversible thermochromic ink Expired - Fee Related JP2540341B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP21072187A JP2540341B2 (en) 1987-08-25 1987-08-25 Writing instruments with built-in reversible thermochromic ink

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP21072187A JP2540341B2 (en) 1987-08-25 1987-08-25 Writing instruments with built-in reversible thermochromic ink

Publications (2)

Publication Number Publication Date
JPS6454081A true JPS6454081A (en) 1989-03-01
JP2540341B2 JP2540341B2 (en) 1996-10-02

Family

ID=16594000

Family Applications (1)

Application Number Title Priority Date Filing Date
JP21072187A Expired - Fee Related JP2540341B2 (en) 1987-08-25 1987-08-25 Writing instruments with built-in reversible thermochromic ink

Country Status (1)

Country Link
JP (1) JP2540341B2 (en)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01170672A (en) * 1987-12-26 1989-07-05 Canon Inc Recording solution and image formation using said solution
JPH03255359A (en) * 1990-01-12 1991-11-14 Jasco Corp Enriching device for eluate
DE4301992A1 (en) * 1993-01-26 1993-06-24 Tech In Gmbh Technologien Fuer Flameproofing plastics with synergistic fire retardants - by microencapsulating fire retardants, e.g. antimony tri:oxide and organic bromo cpd., in material which is compatible with the host plastic
DE4300390A1 (en) * 1992-08-22 1993-07-01 Tech Wissenschaftliche Ges Thi Preventing burning of plastics materials or plastics composites - by incorporating conventional flame retardant as microcapsules
JP2006083267A (en) * 2004-09-15 2006-03-30 Mitsubishi Pencil Co Ltd Water-based ink composition
JP2006298990A (en) * 2005-04-18 2006-11-02 Pilot Ink Co Ltd Aqueous ink composition for reversibly thermochromic writing utensil and writing utensil containing the same
JP2007224295A (en) * 2006-01-30 2007-09-06 Pilot Ink Co Ltd Reversibly and thermally allochroic aqueous ink composition and direct liquid type writing utensil containing the same
JP2008101098A (en) * 2006-10-19 2008-05-01 Pilot Ink Co Ltd Water-based reversibly thermochromic ink composition and direct liquid-type writing utensil using the same
JP2011057878A (en) * 2009-09-11 2011-03-24 Pilot Ink Co Ltd Pastel-shade reversible thermochromic ink composition for writing utensil, and writing utensil and writing utensil set using the composition
JP2012041459A (en) * 2010-08-20 2012-03-01 Pilot Ink Co Ltd Reversible thermochromic aqueous ink composition, and writing utensil and writing utensil set using the same
JP2012077261A (en) * 2010-10-06 2012-04-19 Pilot Ink Co Ltd Pastel tone reversibly thermochromic ink composition for writing utensil, and writing utensil and writing utensil set using the same
JP2012077260A (en) * 2010-10-06 2012-04-19 Pilot Ink Co Ltd Pastel tone reversibly thermochromic ink composition for writing utensil, and writing utensil and writing utensil set using the same
CN104927484A (en) * 2015-06-09 2015-09-23 洪为务 Reversibly thermochromic ink for water color pens

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01170672A (en) * 1987-12-26 1989-07-05 Canon Inc Recording solution and image formation using said solution
JPH03255359A (en) * 1990-01-12 1991-11-14 Jasco Corp Enriching device for eluate
DE4300390A1 (en) * 1992-08-22 1993-07-01 Tech Wissenschaftliche Ges Thi Preventing burning of plastics materials or plastics composites - by incorporating conventional flame retardant as microcapsules
DE4301992A1 (en) * 1993-01-26 1993-06-24 Tech In Gmbh Technologien Fuer Flameproofing plastics with synergistic fire retardants - by microencapsulating fire retardants, e.g. antimony tri:oxide and organic bromo cpd., in material which is compatible with the host plastic
JP2006083267A (en) * 2004-09-15 2006-03-30 Mitsubishi Pencil Co Ltd Water-based ink composition
JP2006298990A (en) * 2005-04-18 2006-11-02 Pilot Ink Co Ltd Aqueous ink composition for reversibly thermochromic writing utensil and writing utensil containing the same
JP2007224295A (en) * 2006-01-30 2007-09-06 Pilot Ink Co Ltd Reversibly and thermally allochroic aqueous ink composition and direct liquid type writing utensil containing the same
JP2008101098A (en) * 2006-10-19 2008-05-01 Pilot Ink Co Ltd Water-based reversibly thermochromic ink composition and direct liquid-type writing utensil using the same
JP2011057878A (en) * 2009-09-11 2011-03-24 Pilot Ink Co Ltd Pastel-shade reversible thermochromic ink composition for writing utensil, and writing utensil and writing utensil set using the composition
JP2012041459A (en) * 2010-08-20 2012-03-01 Pilot Ink Co Ltd Reversible thermochromic aqueous ink composition, and writing utensil and writing utensil set using the same
JP2012077261A (en) * 2010-10-06 2012-04-19 Pilot Ink Co Ltd Pastel tone reversibly thermochromic ink composition for writing utensil, and writing utensil and writing utensil set using the same
JP2012077260A (en) * 2010-10-06 2012-04-19 Pilot Ink Co Ltd Pastel tone reversibly thermochromic ink composition for writing utensil, and writing utensil and writing utensil set using the same
CN104927484A (en) * 2015-06-09 2015-09-23 洪为务 Reversibly thermochromic ink for water color pens

Also Published As

Publication number Publication date
JP2540341B2 (en) 1996-10-02

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