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What types of marking are there for laser marking plastic products?

Views: 43     Author: Site Editor     Publish Time: 03-06-2022      Origin: Site

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Laser marking has a very flexible processing method, which can quickly and clearly mark the processing pattern on the plastic surface, and can accurately mark the same product and the same position. Today Leapion Laser shares the types of logos for laser marking plastic products.

Laser marking of plastics is based on the surface reorganization or color change of the material and can be divided into 4 different marking types:

1. Color change

When irradiated with a short enough laser wavelength, the plastic can be decomposed and dissociated, and the color will change, provided that an appropriate amount of additives can be added to the plastic to produce beautiful results.

2. Carving sag

When the laser peak is high, or the melting point of the material is low, the local temperature of the material surface is much higher than the melting point of the material, and the surface of the material will undergo structural reorganization corrosion or gasification.

3. Transmission does not produce marks

There are many transparent or translucent plastics, and the laser will transmit through the material without producing any marks.

However, polycarbonate (PC) and polyvinyl chloride (PVC) are special materials that are transparent to the naked eye, but they can be carbonized even under low-intensity laser energy irradiation, resulting in Clearly marked.

4. The engraving sinks and the color changes

When the laser energy is very high, the laser irradiation can cause excessive carbonization of the plastic, resulting in specks of different sizes and black depths in the material.

5. Foaming

For some plastics, when the laser energy is low, it is not enough to carbonize the material, and it will only cause some components on the surface of the material to decompose and generate gas to cause the plastic to foam. Color light logotype.

Laser marking plastics offers many advantages:

1. The laser marking speed is fast, and the smallest components and details that are difficult to reach can be easily marked;

2. Laser marking is non-contact marking, and it is corrosion-resistant, heat-resistant and acid-resistant;

3. Laser marking can mark many different plastic materials;

4. The laser marking has high precision and can realize fine marking.

If you would like additional information and content about laser marking machines, please contact Leapion Laser directly.


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