· Rumtoo Quality Team · Quality Control · 1 min read
How to Improve Recycled Flake Quality: 7 Control Points
Seven process checkpoints that directly affect purity, moisture, and consistency of recycled plastic flakes.
High output volume does not guarantee high product value. In recycling plants, flake quality determines selling price and customer retention.
1. Input segregation quality
If incoming material is poorly sorted, downstream equipment must compensate at higher cost and lower stability.
2. Size reduction consistency
Uniform particle size improves washing efficiency and separation accuracy.
3. Label and glue removal
Insufficient label/glue removal is one of the top reasons for customer complaints in PET flake business.
4. Multi-stage washing discipline
Use stage-based washing logic instead of single aggressive washing. Controlled sequence usually performs better than intensity alone.
5. Sink-float reliability
Density separation must be monitored continuously. Small drift in water quality can quickly reduce purity.
6. Dewatering and drying baseline
Moisture instability impacts storage, transportation, and extrusion behavior.
7. Final inspection protocol
Set clear outgoing quality metrics:
- contamination ratio
- moisture level
- color consistency
- bulk density trend
Implementation tip
Assign these seven checkpoints to specific process owners. Quality management becomes practical only when accountability is attached to each stage.
