A method and device for adjusting and controlling electrofluidic printing by capacitive feedback

Abstract

The invention relates to a printing method through feedback and adjusting of capacitance and control of electrofluid. The printing method through feedback and adjusting of capacitance and control of electrofluid includes the steps: 1) through a capacitance detection module, detecting the capacitance between the stylus nozzle of an ink-holding ink-jet stylus and a printing substrate, and sending the capacitance data to a data processing module; 2) after the data processing module receives the capacitance data sent from the capacitance detection module, processing the capacitance data, and thensending the feedback data to a stylus nozzle voltage output control module after processing; and 3) after the stylus nozzle voltage output control module receives the feedback data sent from the dataprocessing module, adjusting the input voltage applied to the ink-holding ink-jet stylus. The invention also provides a printing apparatus through feedback and adjusting of capacitance and control ofelectrofluid utilizing the printing method through feedback and adjusting of capacitance and control of electrofluid. The printing method and apparatus through feedback and adjusting of capacitance and control of electrofluid enable the printed pattern to be uniform by detecting the real-time capacitance between the stylus nozzle and the printing substrate and then by adjusting the voltage appliedbetween the stylus nozzle and the printing substrate in real time to compensate the distance change between the stylus nozzle and the printing substrate. The printing method and apparatus through feedback and adjusting of capacitance and control of electrofluid belong to the technical field of ink-jet printing.

Description

technical field [0001] The invention belongs to the technical field of inkjet printing, and specifically relates to a method for adjusting and controlling electrofluid printing through capacitance feedback and a device for adjusting and controlling electrofluid printing through capacitance feedback. Background technique [0002] The existing electrofluid printing technology is designed based on the relatively flat substrate of the printing medium. The main technical solutions they adopt include: control unit, rigid substrate bearing movement module, printing module, roll-to-roll film substrate conveying module, jet vision A temperature- and humidity-controllable micro-environment control unit surrounded by the detection module and the enclosure box. The printing module includes a motion platform and a nozzle that control the movement of the nozzle to realize the regulation of the printing method, and at the same time has an optical observation system for observing the patter...

AI Technical Summary

Problems solved by technology

However, in the process of inkjet printing high-performance devices, it usually involves printing on the surface of the substrate with microscopic ups and downs. At this time, the electrical difference caused by the ups and downs between the nozzle and the substrate is difficult to feedback and control through conventional optical observation, because the accurate measurement of the print head The distance parameter to the substrate will be disturbed by the deposited ink; in addition, if there is a large relative motion speed between the print head and the substrate, it will cause the printed graphics to be uneven in thickness and aggravate the distortion of the plane pattern

Therefore, this will make it impossible to guarantee the uniformity when printing ultra-fine patterns, especially the width and thickness of the pattern

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