A method of applying dampening water based on the combination of ultrasonic atomization and magnetization, its system and application

Abstract

The invention discloses an ultrasonic atomization and magnetization joint based dampening water application method and system and application of the method. The method includes the following steps: (1) magnetizing the dampening water, arranging an ultrasonic atomization device under a damping roller and adding the magnetized dampening water into the ultrasonic atomization device; (2) starting up the ultrasonic atomization device and ultrasonically atomizing the magnetized dampening water on the damping roller under an ultrasound from 0.1 MHz to 100 MHz to obtain a water film on the damping roller; and (3) activating the damping roller and making the dampening water spread continuously and evenly from the damping roller to a printing block in the water film form. The dampening water application based on ultrasonic atomization and magnetization joint can reduce the surface tension of the dampening water greatly and form a water film stably and evenly on the damping roller surface. The ultrasonic atomization and magnetization joint based dampening water application method can greatly reduce the dosage of surface active substances including alcohol in the dampening water and even can achieve high quality printing without adding any surface active substance, thereby achieving high efficiency and environment friendliness.

Description

technical field [0001] The invention belongs to the technical field of printing, and in particular relates to a method for applying dampening water based on the combination of ultrasonic atomization and magnetization, as well as its system and application. Background technique [0002] Lithographic printing means that during printing, the graphic part and the non-graphic part of the printing plate are almost on the same plane. The plate water application system supplies water to the non-graphic part of the printing plate, and then the ink supply device of the printing system supplies ink to the printing plate. Since the non-graphic part of the printing plate is protected by water, the ink can only be supplied to the printing plate Finally, transfer the ink on the printing plate to the blanket, and then use the pressure between the rubber cylinder and the impression cylinder to transfer the ink on the blanket to the substrate to complete the printing. The water supply device...

AI Technical Summary

Problems solved by technology

However, the combination of ultrasonic atomization and magnetization for the application of dampening water and lithography has not been reported so far.

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