Inkjet Printing is a non-contact printing, and it has wide adaptability, high speed and intelligence, low cost and no pollution as well, so it is the best printing form for food and drug surface printing. Drops control technology is the key to the development of ink-jet printing technology, and viscosity is also the key factor that influences the drop state. In this article, the samples which have different viscosity are got by the way of adding different levels of resin to the ink. Drop state is observed through drops observatory, the speed, tail length and volume are measured by it in order to evaluate the influence of viscosity to ink-jet drop state. The result shows that viscosity has big influence to ink-jet drop state, if the viscosity is larger, the speed of drops is smaller. The ink with high viscosity is easier to gather into a circular drop than that with small viscosity. If the viscosity more than 13.2mPa•s, the rupture time and tail length of the drop increases along with the increase of viscosity. When the viscosity is 10.3mPa•s, its rupture time is 80s and the ink soon gather into a circular drop under the action of cohesion, its drop state is the best.
The design and implementation of high-speed data interface based on Ink-jet printing system