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.

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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;

La calidad del haz es muy alta (M2<1.2), el diámetro del haz enfocado es muy pequeño, solo a nivel de micras, el efecto de marcado es particularmente delicado y el borde es más claro, lo que hace que el contenido sea marcado obvio, potencia >5W, alto eficiencia de marcado;

El diseño exclusivo de la cavidad resonante garantiza una excelente estabilidad del producto, se puede integrar fácilmente en la línea de ensamblaje de máscaras y funciona de manera estable durante mucho tiempo, libera mano de obra, mejora la eficiencia, ahorra costos de mano de obra para los fabricantes de máscaras y aumenta la eficiencia de producción;

La alta flexibilidad del marcado láser también es un punto clave que vale la pena mencionar. Dado que el contenido del marcado incluye, entre otros, patrones, caracteres, números, etc., al establecer el patrón de marcado y cooperar con el sistema óptico avanzado, se puede realizar cualquier texto gráfico. En comparación con el método de marcado tradicional, la eficiencia del marcado se ha duplicado.