Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Forme wetting water applying method based on combination of electric wetting and ultrasonic atomization and system and application of forme wetting water applying method

A technology of ultrasonic atomization and ultrasonic atomizer, applied in lithographic rotary printing machines, printing, rotary printing machines, etc., to achieve the effects of eliminating pollution, simple operation, and reducing surface tension

Active Publication Date: 2019-04-16
KUNMING UNIV OF SCI & TECH
View PDF5 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

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

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Forme wetting water applying method based on combination of electric wetting and ultrasonic atomization and system and application of forme wetting water applying method
  • Forme wetting water applying method based on combination of electric wetting and ultrasonic atomization and system and application of forme wetting water applying method
  • Forme wetting water applying method based on combination of electric wetting and ultrasonic atomization and system and application of forme wetting water applying method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0063] A method for applying dampening water based on the combination of electrowetting and ultrasonic atomization, comprising the following steps:

[0064] 1) An ultrasonic atomization device is installed under the water roller, and dampening water is added to the ultrasonic atomization device. Electrodes are arranged at the atomization nozzle of the ultrasonic atomization device; the dampening water is tap water; the The ultrasonic atomization device is set at 0.1cm below the water roller;

[0065] 2) The water roller includes a metal roller and a dielectric layer covering the outer surface of the metal roller; the ultrasonic atomization device is turned on, and the dampening water is ultrasonically atomized onto the water roller under 0.1MHz ultrasound; the described The dielectric layer is a ceramic layer; the thickness of the dielectric layer is 1 μmmm;

[0066] 3) Simultaneously energize the electrode at the atomization nozzle and the metal rod, and start the water roll...

Embodiment 2

[0073] A method for applying dampening water based on the combination of electrowetting and ultrasonic atomization, comprising the following steps:

[0074] 1) An ultrasonic atomization device is installed under the water roller, and dampening water is added to the ultrasonic atomization device. Electrodes are arranged at the atomization nozzle of the ultrasonic atomization device; the dampening water is deionized water; The ultrasonic atomization device is arranged at 3 cm below the water roller;

[0075]2) The water roller includes a metal roller and a dielectric layer covering the outer surface of the metal roller; the ultrasonic atomization device is turned on, and the dampening water is ultrasonically atomized onto the water roller under 100 MHz ultrasound; the dielectric layer is The electrical layer is a glass layer; the thickness of the dielectric layer is 10mm;

[0076] 3) Simultaneously energize the electrode at the atomization nozzle and the metal rod, and start th...

Embodiment 3

[0083] A method for applying dampening water based on the combination of electrowetting and ultrasonic atomization, comprising the following steps:

[0084] 1) An ultrasonic atomization device is installed under the water roller, and dampening water is added to the ultrasonic atomization device. Electrodes are arranged at the atomization nozzle of the ultrasonic atomization device; the dampening water is distilled water; The ultrasonic atomization device is set at 0.5cm below the water roller;

[0085] 2) The water roller includes a metal roller and a dielectric layer covering the outer surface of the metal roller; the ultrasonic atomization device is turned on, and the dampening water is ultrasonically atomized onto the water roller under 1 MHz ultrasound; the dielectric layer is The electric layer is a ceramic layer, a glass layer, a quartz glass layer, a mica layer, a tetrafluoroethylene plastic layer, and a rubber layer; the thickness of the dielectric layer is 5 μm;

[0...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
Thicknessaaaaaaaaaa
Contact angleaaaaaaaaaa
Thicknessaaaaaaaaaa
Login to View More

Abstract

The invention discloses a forme wetting water applying method based on combination of electric wetting and ultrasonic atomization and a system and application of the forme wetting water applying method. The method comprises the following steps that an ultrasonic atomization device is arranged below a water roll, forme wetting water is added into the ultrasonic atomization device, and electrodes are arranged at atomization nozzles of the ultrasonic atomization device; 2, the water roll comprises a metal roll and a dielectric layer arranged on the outer surface of the metal roll in a covering manner, the ultrasonic atomization device is started, and the forme wetting water is sprayed to the water roll through ultrasonic atomization under ultrasound; and 3, the electrodes at the atomization nozzles and the metal roll are powered on at the same time, and the water roll is started, so that the forme wetting water is transferred from the water roll to a forme in the form of a continuous anduniform water film. According to the method, the principle of combining electric wetting with ultrasonic atomization is creatively adopted for applying the forme wetting water, the surface tension ofthe forme wetting water can be greatly reduced, and the water film stably and uniformly adheres to the surface of the water roll; by means of the method, the consumption of surface active substances including alcohol in the forme wetting water can be remarkably lowered; high-quality printing can be achieved without any added surface active substance; and high efficiency and environmental protection are achieved.

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 electrowetting and ultrasonic atomization, 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 devic...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): B41F7/24B41M1/06
CPCB41F7/24B41M1/06
Inventor 田森林赵群黄建洪李英杰胡学伟宁平宋玉新蒋仕飞
Owner KUNMING UNIV OF SCI & TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com