Conductive ink composition for inkjet printer, method for forming metal pattern by inkjet printing and printed cirsuit board using the method

摘要

A conductive ink composition for the ink-jet printer according to the present invention, the metal nanoparticles; Co-solvents; A dispersant for maintaining a state stably dispersed metal nano-particles in the ink; Including a wetting agent for preventing clogging in a nozzle section of the ink-jet printer, to a viscosity of 0.5 to 40 mPa · s range condition, Newtonian flow behavior conditions, the surface tension satisfying the range condition of 20 to 70mN / m It characterized. ; According to the present invention may be a direct drawing method by the conventional energy-intensive and is environment-friendly and simple process, ink jet printing technology that can replace the production technology according to the high cost of the optical patterning method to form the conductive metal pattern. ; In addition, the ink composition is applied to various industrial fields, such as including the metal nanoparticles with a high concentration of stably dispersed, and so obtain a lower specific resistance by low-temperature thermal treatment, as well as the electrical / electronic materials industry, biotechnology industry of the invention It is expected.