What laser is used for cleaning the code on aluminum cans?

Aluminum cans play a significant role in the packaging industry due to their lightweight and convenient nature. The coding and marking on these cans are crucial for both manufacturers and consumers to identify the product and ensure its quality. To achieve clean and precise coding on aluminum cans, laser cleaning technology has emerged as a popular choice.

The laser type
When it comes to cleaning the code on aluminum cans, fiber lasers are the most commonly used. Fiber lasers offer several advantages, including high cleaning efficiency, precision, and versatility.

The wavelength
The wavelength of the laser used for code cleaning depends on the type of ink or coating used for the coding. In most cases, a wavelength of 1064 nanometers is preferred. This wavelength is ideal for removing various types of inks and coatings commonly used in the packaging industry.

The process
During the laser cleaning process, the laser beam is directed towards the code on the aluminum can. The laser energy heats up and vaporizes the ink or coating, eliminating it from the surface. The high precision of the laser ensures that the cleaning process does not damage the can or affect its structural integrity.

Benefits of laser cleaning
There are several benefits to using laser cleaning for code on aluminum cans. First and foremost, laser cleaning is non-contact, meaning there is no physical contact with the can, reducing the risk of damage. Additionally, laser cleaning is a highly efficient process, resulting in faster and more precise cleaning compared to traditional methods. Moreover, laser cleaning is environmentally friendly as it does not require the use of chemicals or solvents.

In conclusion, fiber lasers, with a preferred wavelength of 1064 nanometers, are commonly used for cleaning the code on aluminum cans. The laser cleaning process offers numerous benefits, including high efficiency, precision, versatility, and environmental friendliness. With the advancement of laser technology, coding and marking on aluminum cans have become more reliable and efficient.