Polyurethane Resin for Gravure Ink
CAS Number: 9009-54-5
Two-component and single-component polyurethane resins engineered as binders for solvent-based gravure and flexographic packaging inks, offering outstanding interlayer adhesion, boiling resistance, and chemical resistance. These PU binders are compatible with nitrocellulose and chlorinated carriers, making them ideal for high-performance retort and sterilizable packaging applications.
Technical Specifications
| solvent | Ethyl acetate / MEK |
| appearance | Pale yellow to amber liquid or solid |
| NCO content (%) | 0 (1K) or 8–12 (2K hardener) |
| solid content (%) | 30–50 |
| viscosity (mPa·s) | 500–3000 (25 °C, as supplied) |
Applications
- Solvent-based gravure inks for flexible packaging
- Retort and boil-in-bag packaging inks
- Laminating inks on PET, nylon, and BOPP
- High-performance flexographic inks
- Industrial packaging inks requiring chemical resistance
Key Features
- Superior boil and retort resistance for food packaging inks
- Excellent interlayer adhesion and lamination bond strength
- High gloss and transparency in dried ink film
- Compatible with NC and chlorinated resin systems
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