Styrene-Acrylic Emulsion for Waterborne Ink
CAS Number: 9010-94-0
Styrene-acrylic (S/A) core-shell emulsion tailored as a binder for high-performance waterborne flexographic and digital pre-coating inks, offering excellent hardness, water whitening resistance, and pigment compatibility. Its controlled Tg enables formulation of inks with outstanding blocking resistance after printing on lightweight coated papers and corrugated liners.
Technical Specifications
| pH | 7.0–9.0 |
| Tg (°C) | 30–70 |
| appearance | Milky white emulsion |
| solid content (%) | 45–52 |
| particle size (nm) | 80–150 |
| viscosity (mPa·s) | 200–1000 (25 °C) |
Applications
- High-gloss waterborne flexo inks for coated board
- Corrugated case and liner printing inks
- Digital inkjet pre-coating formulations
- Overprint aqueous varnishes for labels
- Water-based screen printing inks on paper
Key Features
- High Tg variants provide excellent blocking and rub resistance
- Low water-whitening tendency for outdoor-suitable prints
- Good compatibility with pigment dispersions and colorants
- Stable emulsion with extended shelf life for ink manufacturing
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