Problems Caused by Static Electricity in BOPP Film Production

Due to the inevitable friction of the film, static electricity affects production in the following main aspects:

1. Printing Difficulties

Due to(micro-static discharge), burrs or flocculent (whisker-like) ink often escapes along the edges of printed patterns.  

Static electricity charges the ink, causing ink particles to clump together via electrostatic adsorption, leading to issues such as printing scratches, incomplete printing in light screen or hanging screen areas, etc.  

Due to the adsorption effect of static electricity, the film may absorb tiny particles like dust from the environment during operation, contaminating the film and causing waste products.  

2. Safety Issues

When static electricity accumulates to a sufficient level, it may cause electric spark discharge between the plate roller and ink tank, directly leading to fire accidents or even explosions. Similar incidents are not uncommon in the packaging industry.  

3.Operation Inconvenience and Equipment Damage

During the winding process in film production, static electricity accumulation may discharge to operators or equipment (such as electric eyes and controllers), causing operational difficulties or even equipment damage.  

Meanwhile, static electricity accumulation creates a capacitance effect, which can generate electromagnetic waves in severe cases, interfering with other electrical components on the equipment and causing damage or malfunctions.  

4. Packaging Challenges

Static electricity generated in customers' automatic packaging machines for finished products often causes issues such as poor heat sealing, uneven heat sealing, or even failed heat sealing (especially for powdery contents).  

Some contents to be packaged (e.g., electronic components) are highly sensitive to static electricity and are easily damaged during packaging. Such problems often lead to customer complaints about product non-compliance.