CO2 Laser Marking Machine Marking on Leather&Clothing
A CO2 laser marking machine is an excellent tool for engraving or marking on leather and clothing due to its precision, speed, and ability to create intricate designs without physical contact. Here’s a detailed guide on how it works and best practices for marking on these materials:
1. How CO2 Laser Marking Works on Leather & Clothing
Laser Type: CO2 lasers (typically 10.6 µm wavelength) are ideal for organic materials like leather, fabric, and wood.
Process: The laser beam vaporizes the surface layer, creating high-contrast marks (engraving, cutting, or discoloration).
Non-Contact: No tool wear, making it perfect for delicate fabrics and fine leather.
2. Applications on Leather & Clothing
Leather
Engraving: Personalization (names, logos, patterns).
Cutting: Precision cutting for wallets, belts, shoes.
Discoloration: Light or dark marks (depends on power & speed).
Clothing/Fabric
Cotton, Denim, Polyester: Engraving logos, designs, or serial numbers.
Synthetic Fabrics: Can melt slightly, creating a sealed edge (prevents fraying).
Avoid: Some plastics (may burn or emit toxic fumes).
3. Best Settings for CO2 Laser Marking
| Material | Power (W) | Speed (mm/s) | Frequency (Hz) | Notes |
|---|---|---|---|---|
| Natural Leather | 10-30% | 300-800 | 500-1000 | Darker marks at lower speed. |
| Suede | 5-15% | 400-1000 | 1000 | Lighter touch to avoid burns. |
| Denim | 10-20% | 500-1000 | 1000 | Creates a faded/bleached effect. |
| Cotton | 5-15% | 700-1200 | 1000 | Avoid excessive power (burning). |
| Polyester | 10-25% | 400-800 | 1000 | Can melt edges slightly. |
Note: Always test on a scrap piece first! Settings vary by machine and material thickness.
4. Advantages of CO2 Laser Marking
✔ High Precision: Fine details, small text, complex logos.
✔ Durability: Marks won’t fade or peel like ink.
✔ No Consumables: No inks or solvents needed.
✔ Fast Processing: Seconds per piece.
5. Safety & Tips
Ventilation: Leather/fabric can produce smoke; use an exhaust system.
Avoid PVC/Vinyl: Releases toxic chlorine gas when lasered.
Backing Material: Use honeycomb or aluminum plates to prevent burn marks.
Post-Processing: Wipe off residue with a damp cloth (for leather).
6. Alternative Methods
Fiber Laser: Better for coated metals, not ideal for most fabrics/leather.
UV Laser: Works on some synthetics but slower than CO2.
