OIL-BASE PIGMENT INK FOR BALLPOINT

PROBLEM TO BE SOLVED: To provide an oil-base pigment ink for ballpoints which contains an environmentally friendly pigment in a high content, is excellent in the feeling in writing, and gives a written record excellent in fastness. SOLUTION: This oil-base pigment ink for ball points comprises a pigm...

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Hauptverfasser: SUGIURA MASAKI, SUGITO YOSHIFUMI
Format: Patent
Sprache:eng
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Zusammenfassung:PROBLEM TO BE SOLVED: To provide an oil-base pigment ink for ballpoints which contains an environmentally friendly pigment in a high content, is excellent in the feeling in writing, and gives a written record excellent in fastness. SOLUTION: This oil-base pigment ink for ball points comprises a pigment, a resin, and a solvent. The resin is a copolymer composed of monomer units at least containing styrene units and methacrylic ester units. COPYRIGHT: (C)2004,JPO