CO2 Laser Marking Machine Marking on Rubber

CO2 laser marking machines are commonly used for marking rubber materials due to their precision, speed, and non-contact nature. Here’s a detailed guide on how CO₂ lasers work for rubber marking, along with key considerations:

How CO2 Laser Marking Works on Rubber

1. Laser Interaction with Rubber

• The CO2 laser (wavelength: 10.6 μm) is absorbed well by rubber, causing localized heating.

• The heat carbonizes the rubber surface, creating a dark, high-contrast mark.

• For light-colored rubber, a foaming effect can produce a lighter-colored mark.

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2. Types of Marks Possible

• Engraving/Etching: Removing a thin layer to create permanent markings.

• Annealing: Producing dark marks without deep engraving.

• Foaming: Creating light-colored marks on dark rubber.

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Key Parameters for Optimal Marking