A corona treatment machine

Abstract

The invention relates to the technical field of film preparation, and discloses a corona treatment machine, including a machine body, a corona device is fixedly installed in the middle of the top of the machine body, a corona roller is movably installed under the corona device, and one side of the top of the machine body is fixed A fan is installed, a high-voltage transformer is arranged at the bottom of the body, a controller is arranged on the front of the body, a plurality of conveying rollers for conveying film are arranged on both sides of the corona roller, and the corona device is provided with a mounting block, and the mounting block The bottom is connected with a plurality of electrodes through springs, and two moving collars are symmetrically and movably sleeved on the corona roller, and a moving device is movably connected to the bottom of the moving collars. The corona treatment machine can be adjusted by setting multiple electrodes, which reduces excess ozone and heat, improves the utilization rate, and can adjust the working range according to the specific film. To achieve the best, the corona effect is good.

Description

technical field [0001] The invention relates to the technical field of film preparation, in particular to a corona treatment machine. Background technique [0002] In the process of film preparation, corona treatment is required to increase the adsorption and viscosity of the film surface, so that the film is easier to adhere to ink, etc. The machine that realizes the corona effect is the corona treatment machine, the principle of the corona treatment machine It is: use high frequency and high voltage to corona discharge on the surface of the film to generate low temperature plasma, make the surface of the film generate free radical reaction and crosslink the polymer, roughen the surface and increase its wetting to polar solvents Wetness - These ions enter the surface of the printed object by electric shock and penetration to destroy its molecular structure, and then oxidize and polarize the treated surface molecules, and the ion electric shock erodes the surface, so as to i...

AI Technical Summary

Problems solved by technology

[0003] Existing corona treatment machines often use monolithic long strip electrodes. When using this, since the width of the film undergoing corona treatment is not always consistent with the length of the electrode, there will be partial electrodes without corona to the film. Empty electricity, and the discharge of the electrode itself will generate ozone, nitric oxide and other gases, which will cause a large amount of ozone to be generated in areas without thin films, increasing the concentration of ozone, etc. Too much gas will cause pollution to the It is harmful to the human body, and the electrode discharge will also generate a lot of heat, and the part without the film corona will also generate a lot of heat, which will affect the properties of the film and cause the film to deteriorate.

[0004] The width of the film is variable. When a monolithic electrode is used to corona the film, it will cause waste in the area without the film, and the excess heat will cause the corona effect of the film to deteriorate, which is not conducive to the realization of the film. Good corona effect, and a small amount of ozone has an additive effect on the corona of the film, but too much ozone is not conducive to corona, and it needs to be extracted as soon as possible

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