WATER-ERASABLE AQUEOUS INK COMPOSITION

PROBLEM TO BE SOLVED: To provide a water-erasable aqueous ink composition which can write on a non-permeable writing surface without being repelled, and handwriting formed thereon can be erased from the writing surface by wiping with cloth or tissue paper moistened with water; and to provide an aque...

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Hauptverfasser: FUKUO HIDETOSHI, ITO ATSUSHI
Format: Patent
Sprache:eng
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Zusammenfassung:PROBLEM TO BE SOLVED: To provide a water-erasable aqueous ink composition which can write on a non-permeable writing surface without being repelled, and handwriting formed thereon can be erased from the writing surface by wiping with cloth or tissue paper moistened with water; and to provide an aqueous marking pen including such an ink composition.SOLUTION: The water-erasable aqueous ink composition includes (a) water as a solvent, (b) a water-soluble dye, (c) a water-soluble resin and (d) 0.5-10 wt.% of decaglycerol caprylate.