Ethyl Cellulose for Gravure & Screen Inks
CAS Number: 9004-57-3
Ethyl cellulose (EC) is a non-ionic thermoplastic resin used as a film former and binder in solvent-based gravure and screen-printing inks, ceramic pastes, and pharmaceutical coatings, offering exceptional toughness, flexibility, and solubility in a wide range of organic solvents. EC-based inks are prized for their excellent adhesion to polystyrene, metal foils, and coated papers.
Technical Specifications
| appearance | Off-white to cream free-flowing powder |
| moisture (%) | ≤3.0 |
| ash content (%) | ≤0.4 |
| viscosity (mPa·s) | 4–300 (5% in toluene/ethanol 80:20, 25 °C) |
| ethoxyl content (%) | 44–50 |
Applications
- Gravure inks for metallic foil and polystyrene
- Screen-printing inks for electronics and PCBs
- Ceramic and glass decoration inks
- Pharmaceutical tablet coating formulations
- Hot-melt and heat-seal ink systems
Key Features
- Soluble in broad range of solvents including toluene, ethanol, and MEK
- Outstanding toughness and flexibility in dried ink films
- Excellent dielectric properties for electronic printing inks
- Non-ionic character avoids compatibility issues with ionic additives
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