| abstract |
Provided is a conductor pattern ink capable of producing a conductor pattern with less occurrence of cracks. A colloidal solution comprising colloidal particles containing at least a dispersant containing a compound having at least one amino group and a carboxyl group and a conductive metal. The colloidal solution includes: Any one or two or more nonionic compounds of tetraethylene glycol, polyethylene glycol, propylene oxide-ethylene oxide block copolymer are included, and the content of the nonionic compound is in the conductive metal. On the other hand, a conductor pattern ink characterized by being over 5% by mass is employed. [Selection figure] None |