Introduction to Laser Marking Powder
Laser marking powder, also known as laser marking masterbatch, is designed to absorb laser energy, converting it into heat. This process creates marks on plastic surfaces through thermal, carbonization, foaming, and color-changing reactions.
Principles of Laser Marking
- Carbonization: The powder heats up, causing the surrounding resin to char, creating black marks. Ideal for light-colored materials.
- Foaming: The powder generates heat, producing tiny bubbles in the resin, creating a light or white mark. Suitable for dark and black materials.
- Ablation: High-energy lasers vaporize the resin, creating an engraved texture. Used in Laser Direct Structuring (LDS).
- Color Change: The powder undergoes a chemical change, darkening the material. Best for light-colored substrates.
Precautions for Using Laser Marking Powder
- Drying: Ensure the plastic is completely dry, free from moisture.
- Optimal Results: Factors like additives, colorants, laser quality, and settings affect the marking. Extensive testing may be needed.
- Fiber and Glass Beads: These do not significantly impact marking.
- Black-on-White Marking: Limit carbon black to 1.5% of the resin. Excess reduces marking performance.
- White-on-Black Marking: Adding appropriate amounts of laser marking powder improves clarity and stability.
- Flame Retardants: These reduce marking quality, so increase the proportion of laser marking powder.
- Laser Settings: For white-on-black, use low power and frequency. For black-on-white, use higher power and frequency.
Storage Conditions
- Store in a dry, well-ventilated area.
- Keep away from water and moisture.
- Avoid direct sunlight.
- Seal unused portions.
- Use within 24 months.
Conclusion
Laser marking powder is a versatile tool for creating high-quality marks on plastics. By following the correct procedures and precautions, you can achieve optimal results and ensure the longevity of the marked products.
Chongqing Baozhuan New Material Technology Co.,Ltd has a team of senior R & D, marketing and sale in the polymer industry, focusing on the innovative R & D, production and sales of high-end additives.
The main products are silicone masterbatch, silicone powder, flame retardant, flame retardant synergist, light stabilizer, rheological agent, laser marking additives, compatilizing dispersant, lubricating dispersant, adsorbent,etc.Official website Address:https://www.additivebz.com/
