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Solution to corona breakdown film

May 10, 2024

Solution to corona breakdown film

 
Corona breakdown of films is a common phenomenon that can be solved by:
 
Corona discharge treatment. This is a common method that uses a corona discharge on the surface of the film to increase the affinity of the film surface, making it more receptive to printing inks, adhesives or decorative coatings. During the treatment process, the polymer material passes between the electrodes and the sensing roller. When the applied voltage reaches the breakdown voltage of air, a discharge occurs between the electrodes, generating plasma, which chemically reacts with the polymer surface to form polarity. group.
 
Adjust processing conditions. In actual operation, the effect can be improved by reducing the traction rate, treating while it is hot, etc. The effect of corona treatment is closely related to the electrode gap, frequency and impedance matching of the power supply, so these parameters need to be adjusted to achieve the best treatment effect.
 
Solve the problem of unevenness. If the processing is uneven from left to right across the width of the film, it may be because the electrode gap is uneven. The gap between the electrode and the back roller needs to be adjusted and calibrated to keep the normal gap between 1.5~2.0mm to avoid insufficient discharge and uneven processing.
 
Use a corona discharge treatment device. The device uses rod-shaped electrodes for discharge processing, and the spokes are coated with dielectric materials to avoid arc discharge caused by corona discharge. Dielectric materials need to be resistant to high voltages and resistant to aging in ozone.
 
Troubleshoot equipment issues. If there are problems such as overheating of the generator cabinet and strong ozone smell, it is necessary to regularly clean the fan and filter to ensure ventilation, or adjust the power matching of the ozone fan and the corona system, ensure that the fan wiring is correct, avoid reversal, and regularly check the fan and pipelines. .
 
Through the above method, the problem of corona breakdown of the film can be effectively solved and the surface treatment effect of the film can be improved.

Our Industry Rollers included Rollers for Plastic film, Rollers For Metallurgy. We supply quality Gearboxes and Electric Motors as well. 

Corona Roller 2Corona Roller 4Corona Roller 3Corona Roll 1
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Author:

Mr. Jack Yang

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Huatao Group was founded in 2008. We are a professional and leading supplier of various rollers, motors, gearboxes, and rotary joints to the plastic & rubber, metallurgy, paper, corrugated board, printing & dyeing, and textile industries over 15 years of experience. With a strong commitment to innovation, reliability, and customer satisfaction, Huatao Group has become a trusted provider in the industry and our products have been exported to more than 96 countries and have a good reputation.. Products: Gearboxes: HUATAO offers a diverse range of gearboxes designed for various applications across industries. These gearboxes are known for their efficiency, durability, and precise power transmission. They are available in different types, including helical, bevel, worm, and planetary gearboxes, catering to the specific needs of customers. Motors: Huatao provides a comprehensive selection of motors suitable for a wide range of applications. Their motor offerings include electric motors, servo motors, and specialized motors for specific industries. These motors are known for their high performance, energy efficiency, and reliable operation. Ours motors are designed to meet the...
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