How to Use Luminous Powder in Plastics?

1. Material Selection

   • Prioritize luminous powder with fine particle size and softer texture.

2. Equipment Recommendation

   • Use older injection molding machines with shorter screws (recommended barrel length ≤0.8m) for optimal results.

3. Mixing Method

   • Manually pre-mix materials to avoid mechanical shear degradation.

4. Process Parameters

   • Increase front zone temperature

   • Reduce rear zone temperature and pressure
     (Adjust within production feasibility limits)

5. Dosage Control

   • Standard additive ratio: 2%–10% by weight

   • Adjust based on luminosity/cost requirements

   • Critical: Never exceed 10%

Manufacturing Notes:

• Pre-mixing: Add ≈0.5% dispersant oil during blending to:
  a) Improve material distribution
  b) Prevent particle agglomeration on surface

• Agglomeration Risks:
  » Causes uneven powder accumulation in barrel
  » Increases screw-powder friction → blackening phenomenon

• Quality Control:
  » Immediately halt production if observing:
  • Product discoloration
  • Luminosity reduction
  » Thoroughly clean machinery before restarting