Patent attributes
A droplet ejection device for a highly viscous liquid includes a micro flow channel filled with a highly viscous liquid and having an inlet and an outlet channel; at least a branch channel communicated with the outlet channel; a highly-viscous-liquid supply device connected to the inlet so as to supply the highly viscous liquid to the micro flow channel; a gas supply device connected to the branch channel so as to supply a gas to the outlet channel by way of the branch channel; and at least a control valve mounted between the branch channel and the gas supply device so as to control an intermittent supply of the gas from the branch channel to the outlet channel to interrupt the highly-viscous-liquid flow in the outlet channel and to prompt the highly viscous fluid to form a droplet to be ejected out of the micro flow channel.
