Titanate Coupling Agent (Adhesion Promoter for Inks)
Isopropyl titanate and organotitanate coupling agents used as adhesion promoters in printing inks to improve adhesion to difficult substrates including glass, metals, ceramics, and treated or untreated polyolefins. Titanate coupling agents react with surface hydroxyl groups and inorganic fillers to form covalent bridges between the substrate and the ink binder, dramatically improving adhesion tape-test performance without compromising gloss or transparency.
Technical Specifications
| appearance | Clear to pale yellow liquid |
| solubility | Soluble in alcohols, esters, and aromatic solvents |
| active content (%) | 80–100 |
| viscosity (mPa·s) | 5–50 (25 °C) |
| titanium content (%) | 15–25 |
Applications
- Adhesion promoter in flexo inks on untreated polyolefin films
- Adhesion improver in gravure inks on aluminum foil
- Glass and ceramic substrate adhesion in screen inks
- Metal surface adhesion enhancer in industrial printing inks
- Filler coupling agent in UV and solvent-based inks
Key Features
- Significant adhesion improvement on glass, metal, and ceramic substrates
- Effective adhesion promotion on low-surface-energy polyolefin films
- Compatible with solvent-based, UV, and waterborne ink systems
- Low addition level (0.1–1%) for cost-effective adhesion enhancement
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