| abstract |
The metallic printing ink of the present invention is a metallic printing ink comprising metal particles made of silver, a protective agent A made of an amine compound, and a protective agent B made of a fatty acid. The protective agent A is made of carbon. The protective agent B is made of at least one kind of amine compound having a number of 4 or more and 12 or less, and is made of at least one kind of fatty acid having a carbon number of 22 or more and 26 or less. Here, based on the mass of the silver particles, the content of the amine compound is preferably 0.2 mmol / g or more and 1.5 mmol / g or less. Further, based on the mass of the silver particles, the content of the fatty acid is preferably 0.01 mmol / g or more and 0.06 mmol / g or less. |