Dispersing Agent, Speciality Additive, Water-borne

VP 6870 Waterborne oil universal UV ink dispersant

The 6870 Waterborne Universal UV Ink Dispersant represents a pinnacle in high-performance additive technology, specifically engineered to bridge the compatibility gap between aqueous and oleaginous UV-curable systems. As a sophisticated high-molecular-weight block copolymer, this agent provides exceptional steric stabilization for organic pigments, inorganic fillers, and high-surface-area carbon blacks. Its unique amphiphilic molecular architecture allows for rapid pigment wetting and substantial reduction in mill-base viscosity, facilitating higher pigment loading without compromising stability. Designed for versatility, 6870 ensures uniform particle size distribution, preventing flocculation and sedimentation in both water-based UV and traditional oil-based UV ink formulations. By optimizing the interfacial tension between the pigment surface and the resin matrix, it enhances color strength, gloss, and transparency. This universal dispersant is indispensable for modern digital printing and industrial coatings where multi-substrate adhesion and rheological precision are paramount. Its low-VOC profile and high efficiency make it the preferred choice for environmentally conscious, high-speed UV-curing applications.

Attributes

Key Features and Benefits

Universal Compatibility: Seamlessly integrates with waterborne UV, solvent-based, and 100% solid UV-curable systems.
Viscosity Reduction: Drastically lowers mill-base viscosity, allowing for high-concentration pigment pastes and improved processing efficiency.
Enhanced Coloristics: Maximizes color development, transparency, and tinting strength by achieving narrow particle size distribution.
Superior Stability: Provides long-term anti-settling and anti-flocculation properties through robust steric hindrance.
Gloss Optimization: Significantly improves surface gloss and DOI (Distinctness of Image) in finished coatings.
Environmental Compliance: Low VOC and APEO-free formulation, meeting stringent modern environmental regulations for sustainable industrial production.
Performance Reliability: Ensures batch-to-batch consistency in demanding manufacturing.

Specifications

Technical Highlights

Molecular Composition: High-molecular-weight modified block copolymer with pigment-affinic groups for maximum adsorption.
Active Content: Typically 40-50% active matter in a balanced aqueous/solvent carrier system.
Amphiphilic Nature: Dual-functional hydrophilic and lipophilic segments ensure stability across diverse polarity ranges.
Particle Size Control: Capable of stabilizing particles at the sub-micron and nano-scale levels.
Ionic Character: Non-ionic/weakly anionic nature prevents interference with sensitive UV-curing photoinitiators or resin catalysts.
Thermal Stability: Maintains performance during high-shear milling and high-temperature curing cycles common in industrial UV processes.
Low Foaming: Formulated to minimize micro-foam entrapment during high-speed dispersion.

Download Technical Data Sheet (TDS)

Practical industry uses

Applications

Digital Inkjet Inks: Critical for stabilizing water-based and LED-UV inkjet inks to prevent nozzle clogging.
Flexographic Printing: Ideal for high-pigment-load flexo inks used in packaging and label printing.
Industrial Coatings: Utilized in UV-curable wood coatings, plastic finishes, and automotive decorative parts.
Screen Printing: Enhances flow and leveling in thick-film UV screen inks for electronics and signage.
Pigment Concentrates: Primary dispersant for universal colorants used in multi-resin industrial tinting systems.
Overprint Varnishes: Improves clarity and wetting in high-gloss UV-curable waterborne overprint varnishes (OPV).
Textile Inks: Provides excellent wash-fastness and color vibrancy in UV-curable digital textile pigments.