| 摘要 |
An ink composition includes a metal microparticle, a dispersion medium having water as a main ingredient, a dispersant for dispersing the metal microparticle into the dispersion medium, and a water-soluble polyhydric alcohol that is trivalent to hexavalent and solid under normal conditions, and whose concentration is 5 to 20 weight % relative to a total weight of the ink composition.
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