Title:
油性ボールペン
Document Type and Number:
Japanese Patent JP7329669
Kind Code:
B2
Abstract:
To provide an oil-based ball point pen of which ink leakage is suppressed and excessive ink adhesion to paper and writing feeling are enhanced.SOLUTION: There is provided an oil-based ball point pen having a boll point chip rotatably holding a ball with ball diameter of 1.0 to 2.0 mm in a tip part of an ink accommodation tube, and accommodating an ink composition for oil-based ball point pen in the ink accommodation tube, in which the ink composition for oil-based ball point pen contains a coloring agent, an organic solvent, a polyvinyl butyral resin and a ketone resin and a blended ratio of the polyvinyl butyral resin based on the ketone resin is 0.1 times to 3.0 times by mass.SELECTED DRAWING: Figure 1
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Inventors:
Mitsuto Miyake
Hidenori Kudo
Takahiro Castle
Hidenori Kudo
Takahiro Castle
Application Number:
JP2022141852A
Publication Date:
August 18, 2023
Filing Date:
September 07, 2022
Export Citation:
Assignee:
Pilot Corporation Co., Ltd.
International Classes:
B43K7/01; B43K1/08; C09D11/18
Domestic Patent References:
| JP2015193681A | ||||
| JP2014114376A | ||||
| JP2012082373A | ||||
| JP2001240764A | ||||
| JP2004034364A |