Sintering, in different temperatures, of traces of silver printed in flexible surfaces

Ink-jet printing is a novel method to promote electrical circuit by printing metal nano-particles onto flexible substrates. A very important part of this process is the sintering of the conductive ink. In this article we used the printer Dimatix DMP-2832, the substrate of polyamide Kapton® and silver nano-particles ink. No surface treatment is used. Isotherms are constructed according to the temperature and time. We can note that higher temperatures do not accelerate the process of sintering. After a certain temperature “ideal” has been achieved we cannot accelerate the process of sintering. This time will remain almost the same.