WO2009040887A1 - Water-based ink composition for ballpoint pens - Google Patents

Water-based ink composition for ballpoint pens Download PDF

Info

Publication number
WO2009040887A1
WO2009040887A1 PCT/JP2007/068602 JP2007068602W WO2009040887A1 WO 2009040887 A1 WO2009040887 A1 WO 2009040887A1 JP 2007068602 W JP2007068602 W JP 2007068602W WO 2009040887 A1 WO2009040887 A1 WO 2009040887A1
Authority
WO
WIPO (PCT)
Prior art keywords
water
ink composition
based ink
ballpoint pens
shear
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.)
Ceased
Application number
PCT/JP2007/068602
Other languages
French (fr)
Japanese (ja)
Inventor
Nobuyuki Kitaoka
Yoshiaki Ono
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 PCT/JP2007/068602 priority Critical patent/WO2009040887A1/en
Publication of WO2009040887A1 publication Critical patent/WO2009040887A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43K—IMPLEMENTS FOR WRITING OR DRAWING
    • B43K7/00—Ball-point pens
    • B43K7/02—Ink reservoirs; Ink cartridges
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43K—IMPLEMENTS FOR WRITING OR DRAWING
    • B43K24/00—Mechanisms for selecting, projecting, retracting or locking writing units
    • B43K24/02—Mechanisms for selecting, projecting, retracting or locking writing units for locking a single writing unit in only fully projected or retracted positions
    • B43K24/08—Mechanisms for selecting, projecting, retracting or locking writing units for locking a single writing unit in only fully projected or retracted positions operated by push-buttons
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43K—IMPLEMENTS FOR WRITING OR DRAWING
    • B43K7/00—Ball-point pens
    • B43K7/12—Ball-point pens with retractable ball points
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D11/00—Inks
    • C09D11/16—Writing inks
    • C09D11/18—Writing inks specially adapted for ball-point writing instruments

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Inks, Pencil-Leads, Or Crayons (AREA)

Abstract

A water-based ink composition for ballpoint pens which ensures smooth writing at the early stage and after time passage, shows no faint part in handwriting and can sustain a stable writing performance to thereby give favorable handwriting continuously. Namely, a water-based ink composition for ballpoint pens wherein a coloring agent is dissolved or dispersed in an aqueous vehicle. It contains a shear-thinning tackifier and the aqueous vehicle contains a water-soluble organic solvent which substantially comprises a solvent showing a solubility parameter (SP) of about 8 to about 11. In this composition, the content of the shear-thinning tackifier is from about 0.1 to about 20% by mass while the content of the water-soluble organic solvent is from about 1 to about 20% by mass, and the shear-thinning tackifier/ water-soluble organic solvent ratio (by mass) is from about 1/1 to about 1/40.
PCT/JP2007/068602 2007-09-26 2007-09-26 Water-based ink composition for ballpoint pens Ceased WO2009040887A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/JP2007/068602 WO2009040887A1 (en) 2007-09-26 2007-09-26 Water-based ink composition for ballpoint pens

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2007/068602 WO2009040887A1 (en) 2007-09-26 2007-09-26 Water-based ink composition for ballpoint pens

Publications (1)

Publication Number Publication Date
WO2009040887A1 true WO2009040887A1 (en) 2009-04-02

Family

ID=40510800

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2007/068602 Ceased WO2009040887A1 (en) 2007-09-26 2007-09-26 Water-based ink composition for ballpoint pens

Country Status (1)

Country Link
WO (1) WO2009040887A1 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11148043A (en) * 1997-11-14 1999-06-02 Tokyo Sign Pen:Kk Water base gel ink for ball-point pen
JP2006111861A (en) * 2004-09-17 2006-04-27 Pilot Ink Co Ltd Water-based ink composition for capless ballpoint pen and capless ballpoint pen containing the same
JP2006193688A (en) * 2005-01-17 2006-07-27 Mitsubishi Pencil Co Ltd Water-based ballpoint pen ink composition and water-based ballpoint pen
JP2007031595A (en) * 2005-07-27 2007-02-08 Pentel Corp Water-based ink for ballpoint pen and method for producing the same

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11148043A (en) * 1997-11-14 1999-06-02 Tokyo Sign Pen:Kk Water base gel ink for ball-point pen
JP2006111861A (en) * 2004-09-17 2006-04-27 Pilot Ink Co Ltd Water-based ink composition for capless ballpoint pen and capless ballpoint pen containing the same
JP2006193688A (en) * 2005-01-17 2006-07-27 Mitsubishi Pencil Co Ltd Water-based ballpoint pen ink composition and water-based ballpoint pen
JP2007031595A (en) * 2005-07-27 2007-02-08 Pentel Corp Water-based ink for ballpoint pen and method for producing the same

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