Ethyl Acetate (Fast-Evaporation Solvent for Flexo Ink)
CAS Number: 141-78-6
Technical-grade ethyl acetate (EtOAc) used as the primary fast-evaporating solvent in solvent-based flexographic and gravure printing inks, dissolving nitrocellulose, polyamide, and polyurethane resins for low-viscosity, high-speed printable ink formulations. Its low boiling point (77 °C), good solvency for ink resins, and favorable KB value make EtOAc the most widely used solvent in packaging ink manufacture.
Technical Specifications
| appearance | Clear colorless liquid |
| purity (%) | ≥99.5 |
| water content (%) | ≤0.05 |
| boiling point (°C) | 76–78 |
| density (g/mL, 20 °C) | 0.898–0.902 |
Applications
- Primary solvent in NC/PA/PU-based flexo packaging inks
- Solvent in gravure inks for flexible film printing
- NC lacquer and coating solvent
- Adhesive and lamination primer solvent
- Industrial cleaning solvent for ink manufacturing equipment
Key Features
- Fastest evaporation rate among ester solvents for high-speed printing
- Excellent solvency for NC, PA, PU, and CAB ink resins
- Low toxicity and widely accepted regulatory status for packaging inks
- Low residual solvent in dried ink films meeting food-packaging standards
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