Fight against the virus together! Application of RFH 355nm UV Laser in Mask Marking

At present, wearing masks correctly throughout the whole process has become the consensus of the people to fight the epidemic. Especially in the face of Omicron, which is more infectious, the protective effect of masks is particularly important, which has also pushed up the market demand for masks. In order to pursue interests, fake and inferior masks have taken advantage of the situation. These masks not only fail to achieve any protective effect, but may even cause harm to the human body due to the use of substandard materials.

The anti-counterfeiting and traceability of masks has a long way to go, and it is a common practice for mask manufacturers to mark masks.

uv laser | green laser | Ultraviolet lasers | uv dpss laser | nanosecond laser | UV laser source | Solid State Lasers

The traditional marking methods mainly include ink printing, silk screen printing, etc., but such methods are easy to bring in new pollutants, or easy to fade and fall off, causing the marking to fail, and it is easy to be tampered with. It does not have long-term effective anti-counterfeiting and traceability functions. . Applying laser marking technology to make high-quality marking on masks can avoid the shortcomings of traditional marking methods and has obvious advantages.

The industrial-grade nanosecond solid-state laser developed and designed by RFH, the output ultraviolet laser has the advantages of fine marking effect, clear boundary, fast speed, and integration in mask marking.

The output 355nm ultraviolet laser, the outer material of the mask has a very high absorption rate, and the single photon energy of the ultraviolet light is high, which can easily break the molecular bonds of the material to achieve the purpose of material peeling, very little energy is converted into heat energy, and pulse The width is not small (<20ns@50kHZ), the laser energy and material contact time are greatly reduced, the heat-affected zone is fundamentally eliminated, the impact on surrounding materials is reduced, and the marking quality is improved;

The beam quality is very high (M2<1.2), the focused beam diameter is very small, only micron level, the marking effect is particularly delicate, and the edge is clearer, making the content to be marked obvious, >5W power, high marking efficiency ;

The unique resonant cavity design ensures excellent product stability, can be easily integrated into the mask assembly line, and works stably for a long time, liberates manpower, improves efficiency, saves labor costs for mask manufacturers, and increases production efficiency;

The high flexibility of laser marking is also a key point worth mentioning. Since the content of the marking includes but is not limited to patterns, characters, numbers, etc., by setting the marking pattern and cooperating with the advanced optical system, any graphic text can be performed. Compared with the traditional marking method, the efficiency of marking has been doubled.