FAYb lasers: for marking metal or plastic (color change)
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FAYb lasers: for marking metal or plastic (color change)
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FAYb laser markers are ideal for the high-speed, non-contact, permanent labelling of metal and plastic. Laser markers make no contact with the target object and offer other advantages over methods such as stamping or inkjet printing. For example, the marking itself is highly resistant to abrasion, while the laser marker requires no consumables and is hence almost maintenance-free.
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Metal marking
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Metal is marked most commonly using "deep marking", a method that vaporizes surface layers precisely, and black marking, which invokes micro changes in the metal's surface, altering its color. Depending on the laser settings and metal type, this method can produce multilevel color variations. The application determines the marking method. For example, medical instruments may not be subjected to deep marking because recesses in the surface may trap crud, making proper sterilization difficult. Other products used in harsh environments need to be marked very deeply to ensure that they can be read even after decades of use or following a fire.
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Plastic marking / color marking
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Panasonic FAYb Laser Markers can mark plastic using carbonization (dark marking on a light color), material foaming (raised light mark on a dark background), material evaporation (engraving of thermoplastics) or by selectively removing surface layers from the base material (day/night design). In some cases, the coloration contrast can be improved by using special color pigments or additives. The pigment in the resin determines the color, while laser process parameters determine the contrast. Suppliers for laser-sensitive additives include BASF, Bayer, Merck Chemicals and others.
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