Title:
水性ボールペン用インク組成物
Document Type and Number:
Japanese Patent JP7290430
Kind Code:
B2
Abstract:
Provided is an ink composition for an aqueous ballpoint pen, the composition having excellent ink discharging performance even if a pen point is exposed for a long period of time. The ink composition for an aqueous ballpoint pen according to the present invention is characterized by containing at least from 1 to 35 mass% of titanium oxide having an average particle size of greater than 0.1 µm and smaller than or equal to 1 µm, and from 1 to 35 mass% of non-tacky urethane particles having an average particle size from 0.1 to 6 µm.
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Inventors:
Kosuke Ogura
Akiko Hirayama
Takashi Hamasaki
Akiko Hirayama
Takashi Hamasaki
Application Number:
JP2019031478A
Publication Date:
June 13, 2023
Filing Date:
February 25, 2019
Export Citation:
Assignee:
MITSUBISHI PENCIL CO.,LTD.
International Classes:
C09D11/18; B43K7/00
Domestic Patent References:
| JP2011178973A | ||||
| JP2017210547A | ||||
| JP2002256179A | ||||
| JP2003226828A | ||||
| JP2007177011A | ||||
| JP8311148A | ||||
| JP2005036156A |
Attorney, Agent or Firm:
Eisuke Fujimoto
Masayoshi Kanda
Akishige Miyao
Nobuyuki Baba
Masayoshi Kanda
Akishige Miyao
Nobuyuki Baba