Organoclay (Bentonite) Thixotrope for Printing Inks
CAS Number: 1302-78-9
Organically modified montmorillonite (organoclay, rheological additive) for imparting controlled thixotropy to offset, gravure, screen, and industrial printing inks, preventing pigment settling, bleeding, and strikethrough while maintaining low viscosity under shear for press transfer. The amine-salt quaternary-modified clay platelets form a three-dimensional network that rebuilds rapidly after shear, ensuring stable ink storage and consistent print quality.
Technical Specifications
| activation | Requires polar activator (propylene carbonate) |
| appearance | Off-white to beige fine powder |
| moisture (%) | ≤3.0 |
| bulk density (g/L) | 200–450 |
| particle size (d50, µm) | 3–15 |
Applications
- Anti-settling agent in offset and screen printing inks
- Thixotrope in high-pigment gravure ink formulations
- Body agent in industrial specialty printing inks
- Anti-bleed and anti-strikethrough additive in offset inks
- Viscosity stabilizer in solvent-based and UV printing inks
Key Features
- Strong thixotropic network prevents ink settling during storage
- Rapid viscosity recovery after shear for consistent print laydown
- Compatible with aromatic, aliphatic, and ester solvent systems
- Prevents bleeding and ink strikethrough on porous substrates
Send Inquiry
More in Printing Ink Chemicals
Acrylic Resin for Waterborne Flexo Ink
25035-69-2
Alkyd Resin for Offset Ink (Varnish Grade)
68440-04-0
Amine-Modified Polyether Acrylate (PEA Synergist)
Antistatic Agent for Printing Inks (EG-Based)
107-21-1
C5 Aliphatic Hydrocarbon Resin for Ink
64742-16-1
C9 Aromatic Hydrocarbon Resin for Ink
68955-27-1
Calcium Carbonate (Ink Extender & Filler)
471-34-1
Calcium Drier for Offset Ink (Auxiliary Drier)
61789-36-4