The laser marking machine can be used for color printing.
The specific color printed by the laser marking machine depends on the parameters and the material itself. The laser powder is used to match the color printed by the laser marking machine. Using some specific materials or marking processes, and correctly operating the diode pump to mark the substrate, not only can a clear and beautiful black and white effect be produced, but also a colored effect mark can be produced.
Similar to laser blackening of aluminum, it is difficult for ordinary laser marking machines to achieve laser color marking of stainless steel. The dedicated laser for color marking is optional, allowing the pulse width to be adjusted to achieve better color marking effects.
Extended information
The principle of the laser marking machine is to use a high-energy laser beam to leak out the deep material through the evaporation of the surface material, or to mark traces through the chemical and physical changes of the surface material. Or use light energy to burn away part of the material to mark patterns or words.
As the most advanced and effective processing method for industrial product marking, laser marking technology has gradually been well-known and recognized by various industries. It is used in food and beverage, medical packaging, electronic components, auto parts, mobile phone accessories and other fields. A masterpiece with laser tag. In the field of stainless steel marking, new process development of color marking has appeared, and it has been continuously matured and developed.
The basic principle of color marking of stainless steel is to use a high-energy-density laser heat source to act on the stainless steel material to generate colored oxides or a colorless and transparent oxide film on the surface. The light interference effect of the film creates a colorful effect. By controlling laser energy and parameters, different colors presented by oxide layers of different thicknesses can be achieved, and even color gradient marking can be achieved.
Baidu Encyclopedia-Color Laser Marking Machine
Baidu Encyclopedia-Laser Marking Machine