PVC is a widely used material which main component is non crystalline vinyl polymerization. Non crystalline vinyl polymerization is good endurance to oxidant, reducing agent and acid. So for marking this material, we have to choose a suitable Marking Machine.
Commonly Customers will choose near infrared laser or far infrared laser marking machine to mark PVC products.
CO2 Laser marking machine whose wavelength is 10.6u is a common far infrared laser marking machine. The color marked on PVC products by CO2 Laser marking machine is yellow red. CO2 laser marking machine can be made into big power, say 30W or 50W laser power, promising its fast marking, which are more suitable for marking on Assembly line than ink printing which is not environment friendly.
Though CO2 Laser marking machine is one option, but not best due to its yellow red marking color which are not welcomed by most people. Let’s put our eyes on near infrared laser marking machine. Fiber laser marking machine and semiconductor laser marking machine, whose wavelengths are 1064nm, are widely used near infrared laser marking machine. The color they marked on PVC is black color, very near to the color marked by ink printing machine. This is the color people like.
Due to fiber laser machines advantage, such as very small beam, high speed after installed small spot galvanometer,Fiber laser marking machine is much better choice than semiconductor laser marking machine.
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