An aqueous conductive ink composition for an inkjet printer is provided to form a display electrode easily with an inkjet printing technique, to ensure easy handling, excellent storage and dispersion stability. An aqueous conductive ink composition for an inkjet printer using high concentration nano-silver colloidal solution comprises nano colloidal silver solution of 100 parts by weight containing nano silver particle less than 20 nm of 40~60 weight%, a dispersing agent of 0.8~6 parts by weight and dispersion solvent of 20~250 parts by weight.
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