System and method for ink supply and control of nozzle for inkjet printing

Abstract

The invention belongs to the related field of inkjet printing technology, and discloses an ink supply and control system for a nozzle for inkjet printing, which includes an ink storage subsystem, an ink pressure control subsystem and an ink entry and exit subsystem, wherein the ink storage subsystem is used for It is used for ink injection, processing of ink bubbles, ink replenishment between the systems, and ink supply to the nozzle; the ink pressure control subsystem is used to generate positive or negative pressure in the ink cartridge to drive the ink to work; the ink in and out subsystem is used for Ink supply to a single nozzle or multiple nozzles, and the ink supply status of each nozzle can be controlled individually. The invention also discloses a corresponding ink supply and control method. Through the present invention, not only independent and precise control of the ink supply state of each nozzle can be realized in the case of parallel paralleling of multiple nozzles, but also stable ink replenishment, ink circulation, bubble removal, ink heating, and ink discharge can be realized within the system and other functions, so it is especially suitable for inkjet printing applications such as flexible electronics manufacturing.

Description

technical field [0001] The invention belongs to the related field of inkjet printing technology, and more specifically relates to an ink supply and control system and method for a nozzle for inkjet printing. Background technique [0002] Inkjet printing technology has been widely used in many traditional fields. In recent years, it has gradually been applied in the field of flexible devices such as OLED, RFID, thin-film solar cells, wearable flexible devices, PCB, smart skin, etc. The flexible electronics manufacturing process combining flexible electronics and inkjet printing is gaining more attention. [0003] In the manufacturing process of modern inkjet printing technology and equipment, especially products such as flexible electronics, the ink supply and control system of the nozzle is one of the key components to obtain the desired printing effect. Specifically, in such applications, it is not only necessary to obtain higher-precision printing quality, but also becaus...

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Problems solved by technology

[0004] The search found that although some solutions have been proposed for the ink supply process and bubble elimination of conventional inkjet printing equipment in the prior art, such as CN201710383982.0, US2009262153A1, etc., these existing solutions have not fully considered flexible electronics and inkjet. The application requirements of printing combination, especially the inability to independently and accurately control the ink supply status of each nozzle under the parallel working condition of multiple nozzles, and at the same time, it is impossible to realize more personalized functions for the complex needs of such applications

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