Solving Hidden Foam in Ink Pigment Grinding

During pigment grinding (＞2500r/min), micro-foam trapped in viscous slurries causes uneven dispersion and color deviation. Chemi Tech’s defoamer (KM-601) features：

Shear-resistant particles: ≤300nm Bubble breaking substance-polyether composites maintain structural integrity；

Anchoring dispersion: Phosphate groups bind to pigments to prevent foam regeneration；

Rapid penetration: 500-2000mPa·s viscosity ensures fast migration to foam interfaces.

Case study:

A Thailand ink plant reduced grinding time by 40% with 0.15% KM-601 in phthalocyanine blue slurry：

Foam layer thickness decreased from 15cm to 2cm；

Pigment D90 distribution narrowed from ±1.2μm to ±0.3μm；

Annual output increased by 180 tons.

Dosage: 0.1%-0.3% added at initial grinding phase, compatible with acrylic/PU resins.