UV Laser Marking Machine for Medicine

Medical products marking need to be strictly thinking compared to other industries. We should not make the mark on medical products be a source of contamination, and make sure the mark have no chemicals which might cause an allergic reaction. Furthermore, medical products mark should be with a smooth surface, to avoid tissue damage or becoming a place for bacterial growth.

For pharmaceuticals, medical devices, and their associated packaging marking, traditionally, factory usually uses ink printing (inkjet or pad printing), while Pills are referring to an offset rotogravure method. For this way, the main drawback is that the mark can be easily removed or altered. Sometimes, those kinds of mark may become a contamination source to the medicine.

Laser marking machine using non-contact marking method can avoid the problems of contamination. It also can be reduce cost of consumables. Laser marking’s high-contrast, high-resolution, and can be marking on curved or contoured surfaces are quite suitable for medicine marking.

The marking process of CO2 or fiber Laser marking machine is a thermal interaction. Material is heated by the marking machine until the point bleaches, carbonizes, or ablates to produce a color contrast. This heating may change the material chemical structure in the heat-affected zone (HAZ), and may produce some surface relief which may offer a place for bacteria to settle and grow.

The process of UV Laser marking machine is subsurface of the material. That means it won’t leave any place for bacteria. UV laser marking machine is a cold process which is nearly impossible to change or deface the material. Compare to other laser marking machine. The UV laser marking machine is of higher absorption which keeps material processed with lower laser power (or pulse energy). And UV light can be more tightly focused than IR, UV lasers that support UV laser marking machine mark complex, high-resolution marks such as 2D barcodes.

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Tags: laser marking machine UV laser marking machine CO2 laser macking machine