Organoclay CP-24 for Inks
CP-24 is an economical grade of organoclay rheological additive made from bentonite. It is used in solvent and resin systems covering low polarity to medium polarity range.
Advantages of Organoclay CP-24 for Inks
- Fine dispersion and particle size.
- Gel is very transparent and of light color .
- Thixotropy with low viscosity.
- Cost effective.
- Imparts particle suspension, sag resistance without impairing flow and leveling, preventing hard settling of pigment and fillers.
- Exerts strong film reinforcing action in organic binder systems.
Typical properties of Organoclay CP-24 for Inks
| Composition | Organic derivative of a montmorillonite clay |
| Appearance | Fine white powder |
| Moisture content(105℃,2hr) | ≤3.5% |
| Loss on ignition, %(1000℃) | <29% |
| Bulk density | 0.53g/cm3 |
| Fineness (200 mesh) | ≥98% |
Application of Organoclay CP-24 for Inks
- Transparent coatings, alkyd paint, polyester paint.
- Drilling fuilds, in diesel based mud.
- Grease,
- Inks
- Replacement of fumed silica.
Using of Organoclay CP-24 for Inks
CP-24 disperses under high shear and requires a polar activator (30%~40%) for best efficiency. Heat is not required to obtain good dispersion. Addition levels are typically in 0.2%~2.0%. Polar activator (95% Ethanol or 95% Methanol) is needed. Normally addition level of polar activator is recommended to be 30%~40% of CP-24 in weight. Pre-gel procedure is as below.
- Charge solvent to mill
- Slowly add CP-24 (8-10% by weight of total pregel) to mill under agitation.
- Mix at high speed for 5 minutes.
- Add polar activator.
- Mix at high speed for 5 minutes.
Note: The suggested addition level of our organoclay and polar activator is based on our lab testing. Exact dosage for detail formulation should be based on user’s testing.
