INK COMPOSITION FOR A WATER-BASED BALLPOINT PEN, AND WATER-BASED BALLPOINT PEN

In order to provide an ink composition for an aqueous ink ball point pen with which a sufficiently high line intensity is obtained even when a thermochromic microcapsule pigment having a small average particle diameter is used and which is excellent in storage stability and a writing performance and...

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Bibliographische Detailangaben
Hauptverfasser:	HAYAKAWA TAKESHI, YANO MASANAO, TOOMI HIDEAKI, ICHIKAWA SYUJI
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ADHESIVES BUREAU ACCESSORIES CHEMICAL PAINT OR INK REMOVERS CHEMISTRY COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS CORRECTING FLUIDS DYES FILLING PASTES IMPLEMENTS FOR WRITING OR DRAWING INKS METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS PAINTS PASTES OR SOLIDS FOR COLOURING OR PRINTING PERFORMING OPERATIONS POLISHES TRANSPORTING USE OF MATERIALS THEREFOR WOODSTAINS WRITING OR DRAWING IMPLEMENTS
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Beschreibung
Zusammenfassung:	In order to provide an ink composition for an aqueous ink ball point pen with which a sufficiently high line intensity is obtained even when a thermochromic microcapsule pigment having a small average particle diameter is used and which is excellent in storage stability and a writing performance and an aqueous ink ball point pen, a composition of the above ink composition for an aqueous ink ball point pen is provided with such a constitution that it contains at least a microcapsule pigment which has an average particle diameter of 0.1 to 1.0 µm and in which a wall film is formed by an amino resin and a chemical substance which is a polymer comprising ketone as a main chain and has an acidic functional group in the chemical structure and which has an acid value of 3 to 40 (mgKOH/g).