Aqueous Organic pigment concentrates, binder free

This formulation details aqueous pigment concentrates that are binder-free, designed for various applications. Here's a breakdown of the components:

Formulation Components:

• Pigment Paste: The formulation comprises three pigment pastes labeled A, B, and C, each containing different pigment types:
  • Pigment Paste A: Sunfast red 228-0641
  • Pigment Paste B: Sunbrite Yellow 272-4608
  • Pigment Paste C: Sunfast blue 248-615
• Additive: Borchi® Gen 0851 is included as an additive.
• Water: Serves as the primary solvent for the formulation.
• Borchers® AF T: Additional additive included in small amounts.

Dispersion Process:

• The dispersion process involves mixing the components for 60 minutes on a Skandex BAS-20, likely with 150 g Zr-silicate grinding beads (2mm) to achieve the desired particle size distribution.

Data:

• Particle Size: The particle size achieved during dispersion is reported to be less than 6 µm for Pigment Paste A and Pigment Paste B, and less than 7 µm for Pigment Paste C.
• Viscosity: Viscosity measurements at a shear rate of 100 s^-1 and 23 °C indicate the flow behavior of the concentrates. Pigment Paste A has the highest viscosity at 1250 mPa.s, followed by Pigment Paste C at 280 mPa.s, and Pigment Paste B at 280 mPa.s.
• Storage Stability: Stability testing under elevated temperature conditions suggests that there is no significant alteration in viscosity and particle size over time.