How UVLEDs can help pen manufacturers achieve "print and dry instantly," increasing production efficiency by 40%

The client is a stationery manufacturer in Southeast Asia, whose main products include high-end metal fountain pens and ballpoint pens in large quantities, with a daily production capacity requirement of over 100,000 pens.

Challenges Faced:

Before upgrading the production line, the customer faced three thorny issues:

1. Drying Bottleneck: Using traditional solvent-based inks, printing required drying in a 20-meter-long drying tunnel or several hours of natural air drying, severely slowing down delivery speeds.
2. Poor Adhesion: The smooth surface of the fountain pen's metal cap made the ink easily peel off, failing the alcohol swab test.
3. Product Deformation: The thin walls of the fine-tube ballpoint pen caused slight bending of the pen barrel due to the high temperature of traditional infrared drying, preventing the cap from sealing tightly.

Solution

To meet the client's needs, we customized and integrated a high-performance UV LED curing system into their 8-color rotary pad printing machine.

• Precise Wavelength Configuration: Utilizing a 365nm wavelength, it provides rapid curing for specialized UV inks on metal and plastic substrates, ensuring surface dryness and hardness.
• Cold Light Source Technology: The UV LEDs generate only photochemical reactions, not thermal radiation, keeping the pen barrel surface temperature below 40°C, completely eliminating the risk of deformation.
• Compact Integration: The lamp head is directly mounted at the rotary station after the pad printing head, achieving "print one station, dry one station."

Final Results (Success Results)

After three months of operation, the customer provided encouraging data:

• Soaring Production Capacity: Production line speed increased from 2500 units/hour to 4000 units/hour, resulting in a 40% increase in overall production efficiency.
• Zero Space Occupancy: The 15-meter-long drying tunnel was removed, freeing up valuable production space in the workshop.
• Leap in Quality: Products passed 100 alcohol wipe tests and 3M tape tensile tests, and customer complaint rates dropped to near zero.
• Reduced Energy Consumption: Compared to traditional electric drying, the UV LED system reduced power consumption by approximately 65%.

If you are also facing problems such as ink not drying properly, product deformation, or low efficiency, please feel free to contact our technical team!