Ink supply and control system and method for spray heads for ink-jet printing

Abstract

The invention belongs to the related field of ink-jet printing technologies, and discloses an ink supply and control system for spray heads for ink-jet printing. The ink supply and control system comprises an ink storage subsystem, an ink pressure control subsystem and an ink inlet and outlet subsystem, wherein the ink storage subsystem is used for injecting ink, processing ink bubbles, supplementing ink in the system and supplying ink to the spray heads; the ink pressure control subsystem is used for generating positive pressure or negative pressure in an ink box to drive the ink to work; andthe ink inlet and outlet subsystem is used for supplying ink to a single spray head or a plurality of spray heads, and can independently control the ink supply state of each spray head. The inventionfurther discloses a corresponding ink supply and control method. According to the ink supply and control system and method for the spray heads for ink-jet printing, independent and accurate control over the ink supply state of each spray head can be realized under the condition that the plurality of spray heads are parallel, and various functions such as stable ink supplementing, ink circulating,bubble removing, ink heating and ink discharging can be realized in the system, so that the ink supply and control system and method are particularly suitable for ink-jet printing application occasions such as flexible electronic 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...

AI Technical Summary

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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