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A dampening water application method based on ultrasonic atomization and its system and application

A technology of ultrasonic atomization and ultrasonic atomizer, applied in the field of printing, can solve the problem of dampening water that has not yet been reported, and achieve the effects of reducing dosage, reducing requirements and eliminating pollution

Active Publication Date: 2020-04-10
KUNMING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the prior art, ultrasonic and ultrasonic atomization are widely used in the field of medicine, air purification, etc., but there is no report on the application of dampening water and lithographic printing.

Method used

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  • A dampening water application method based on ultrasonic atomization and its system and application
  • A dampening water application method based on ultrasonic atomization and its system and application
  • A dampening water application method based on ultrasonic atomization and its system and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] A method for applying dampening water based on ultrasonic atomization, comprising the following steps:

[0057] 1) Install an ultrasonic atomization device under the water roller, and add dampening water into the ultrasonic atomization device; the ultrasonic atomization device is set at 0.1 cm below the water roller;

[0058] 2) Turn on the ultrasonic atomization device at the same time, and ultrasonically atomize the dampening water onto the water roller under 0.1MHz ultrasound, so that a layer of water film is formed on the water roller; the thickness of the water film on the water roller is 0.1μm , the contact angle is about 60°;

[0059] 3) Start the water roller so that the dampening water is transferred from the water roller to the printing plate in the form of a continuous and uniform water film.

[0060] An application of a dampening water application method based on ultrasonic atomization in lithographic printing, specifically comprising the following steps: ...

Embodiment 2

[0066] A method for applying dampening water based on ultrasonic atomization, comprising the following steps:

[0067] 1) Install an ultrasonic atomization device under the water roller, and add dampening water into the ultrasonic atomization device; the ultrasonic atomization device is set at 1 cm below the water roller;

[0068] 2) Turn on the ultrasonic atomization device at the same time, and ultrasonically atomize the dampening water onto the water roller under 1MHz ultrasound, so that a layer of water film is formed on the water roller; the thickness of the water film on the water roller is 1 μm, contact The angle is about 10°;

[0069] 3) Start the water roller so that the dampening water is transferred from the water roller to the printing plate in the form of a continuous and uniform water film.

[0070] An application of a dampening water application method based on ultrasonic atomization in lithographic printing, specifically comprising the following steps:

[007...

Embodiment 3

[0076] A method for applying dampening water based on ultrasonic atomization, comprising the following steps:

[0077] 1) An ultrasonic atomization device is installed under the water roller, and dampening water is added to the ultrasonic atomization device; the ultrasonic atomization device is set at 3 cm below the water roller; the dampening water is tap water;

[0078] 2) Turn on the ultrasonic atomization device at the same time, and ultrasonically atomize the dampening water onto the water roller under 100MHz ultrasound, so that a layer of water film is formed on the water roller; the thickness of the water film on the water roller is 5 μm, contact The angle is about 50°;

[0079] 3) Start the water roller so that the dampening water is transferred from the water roller to the printing plate in the form of a continuous and uniform water film.

[0080] An application of a dampening water application method based on ultrasonic atomization in lithographic printing, specific...

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Abstract

The invention discloses a fountain solution application method and system based on ultrasonic atomization as well as an application. The method comprises the following steps that 1) an ultrasonic atomization device is arranged below a form damping roller, and a fountain solution is added into the ultrasonic atomization device; 2) the ultrasonic atomization device is started at the same time and used for conducting ultrasonic atomization on the fountain solution on the form damping roller under the ultrasonic condition of 0.1-100 MHz, so that a water film is formed on the form damping roller; and 3) the form damping roller is started, so that the fountain solution is made to be continuously and uniformly conveyed to a forme from the form damping roller in the form of the water film. According to the fountain solution application method and system based on ultrasonic atomization as well as the application, the ultrasonic atomization mode is adopted to carry out application of the fountain solution, the surface tension of the fountain solution can be greatly reduced, the water film can be stably and uniformly formed on the surface of the form damping roller in an attached mode, the use amount of surface active substances including alcohol in the fountain solution can be greatly reduced, even no surface active substances need to be added for realizing high-quality printing, and high efficiency and environmental friendliness 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 ultrasonic atomization, a system and an application thereof. 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 of the printing system uses the princi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
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
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