Dyeing 3D prints is a new area we are currently working on.The ultrasound supports the adhesion of the ink pigments on the surface. The continuous compression and decompression results in intense pressure variation (up to 1000 bar), which leads to strong currents in the micro level and therefore to a brush-effect, which removes air bubbles and dust particles from the surface of the parts structure. According tests with MJF, PA, ABS and SLA parts were very satisfying.

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1. Dyeing time approx 1 to 10 minutes (depending on material)

2. Mixing ratio: 1 part dyeing solution with 5 to 10 parts water (depending on material)

3. Temperature 60 – 85° C (EOS-, HP- and ABS prints)

4. Temperature 25°C – 40°C (Polyjet & SLA-prints)

5. Basket Volume from 20 Liter

6. Multiple usage of dyeing liquid