Agitator-containing ink tank for inkjet printers with improved dispersion stability

Abstract

It is proposed an ink storage tank that stores ink to supply the ink to an inkjet head equipped with a plurality of nozzles configured to eject the ink, the tank comprising an agitator that agitates the ink in an ink storage space defined in a housing of the ink storage tank, the stirrer includes a rotating shaft horizontally mounted in the ink storage space, one or more blades protruding outward from the rotating shaft, and a rotation driving unit configured to rotate the rotating shaft, and wherein the blade is configured to rotate the rotating shaft; the bottom surface of the ink storage space has a concavely curved shape corresponding to the trajectory of the outer edge of the rotating blade. Because the agitator has a horizontal axis of rotation, and a concavely curved bottom surface of the ink storage space, the ink tank has the effect of maintaining a desired dispersion of particles in the ink.

Description

[0001] This application claims priority from Korean Patent Application No. 10-2020-0121251 filed on September 21, 2020, the entire content of which is hereby incorporated by reference for all purposes. technical field [0002] The present disclosure relates to a storage tank for storing ink to supply the ink to an inkjet head used in an inkjet printer. More particularly, the present disclosure relates to an ink tank for an inkjet printer used in various industrial fields. Background technique [0003] The inkjet printing method of ejecting liquid ink onto the surface of a medium in the form of droplets conforming to a shape signal is generally used not only for printing documents and leaflets but also for solution processing in the semiconductor or display industry fields. [0004] Inkjet printing, which can form complex patterns on substrates or discharge ink precisely at specific locations, has a wide range of applications. Small inkjet printers for document writing are i...

AI Technical Summary

Problems solved by technology

Since the nanorods used in the fabrication of QNED are fabricated in the height range from hundreds of nanometers to micrometers, the nanorods are larger in size than the quantum dot materials dispersed in the ink, which is different from the quantum dot materials currently used in inkjet printing. Difficult to maintain desired dispersion compared to quantum dot materials

[0011] Since conventional bar agitators that rotate about a vertical axis of rotation do not work well for inks that have quantum dot materials dispersed therein, it is more difficult to use conventional bar agitators when using inks that contain nanorods that are larger in size than the quantum dot material. type agitator to maintain the desired dispersion

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