Why is 355nm UV laser used to mark the production date on bottle caps?

In daily life, we often come into contact with various bottle caps, such as beverage bottles, cosmetic bottles, etc. On these bottle caps, we usually see one or more production dates. How are these production dates marked on the bottle caps? Why use UV laser marking technology?

First, let us understand UV laser marking technology. UV laser marking technology is an advanced laser marking technology that uses high-energy laser beams to irradiate the bottle cap material to cause a chemical reaction on the surface of the material to form a permanent mark. This technology has the advantages of high precision, fast speed and good effect.

So, why use UV laser marking technology on bottle caps? There are mainly the following reasons:

1. Permanent marking: UV laser marking can form permanent marks on the surface of bottle cap materials that will not disappear over time. This helps ensure product authenticity and traceability, in compliance with food safety regulations.

2. High accuracy: UV laser marking technology can mark production date, batch number and other information with high accuracy, avoiding possible errors in manual writing or pasting of labels.

3. Fast speed: UV laser marking technology adopts non-contact marking method, which can complete the marking of a large number of bottle caps in a short time, improving production efficiency.

4. Strong applicability: UV laser marking technology can be applied to bottle caps of different materials and shapes, such as metal, plastic, glass, etc. In addition, this technology can also customize marking patterns and formats as needed to meet the needs of different manufacturers.

5. High safety: The beam energy generated during the UV laser marking process is low and will not cause harm to operators and the environment, ensuring safety during the production process.

In short, UV laser marking technology has significant advantages in marking the production date of bottle caps. It not only ensures the permanence and accuracy of marking, but also improves production efficiency and reduces operating costs. Therefore, with the continuous development of science and technology, we have reason to believe that ultraviolet laser marking technology will be widely used in more fields.