Waterborne Polyurethane Resin TDD-600 - High Performance for Flexible Coatings

‌Product Overview‌

Waterborne Polyurethane Resin TDD-600 is a cutting-edge, ‌grinding-and-film-forming integrated resin‌ engineered for next-generation water-based inks and flexible coatings. Combining polyurethane’s inherent toughness with advanced aqueous dispersion technology, this resin delivers exceptional adhesion across diverse substrates, including PET, OPP, BOPA, and CPP films. As a 100% solvent-free solution, it enables infinite dilution with water and alcohols while maintaining outstanding water resistance, heat scalability, and rapid drying kinetics. Certified for food-contact applications and compatible with most acrylic systems, TDD-600 is the ideal binder for gravure and flexographic printing inks requiring non-blocking performance and long-term storage stability.

‌Key Characteristics‌

‌1. Universal Substrate Adhesion‌

• ‌Cross-industry bonding‌: Achieves >4B crosshatch adhesion (ASTM D3359) on:
  • ‌Plastics‌: PET, OPP, BOPA, CPP (surface energy >38 dynes/cm).
  • ‌Metals‌: Aluminum foils (adhesion >2.5 MPa via ISO 4624).
  • ‌Cellulose‌: Glassine papers and recycled boards.

‌2. Solvent-Free Dilution System‌

• ‌Infinite dilution capacity‌: Adjust viscosity from 50–10,000 mPa·s using:
  • ‌Alcohols‌: Ethanol, isopropanol (up to 1:20 resin-to-alcohol ratio).
  • ‌Water‌: Deionized or tap water (neutral pH preferred).
• ‌Zero VOC‌: Compliant with EU Directive 2004/42/CE and China GB 38507-2020.

‌3. Enhanced Functional Performance‌

• ‌Water resistance‌: Withstands 72h immersion (ASTM D870) with no blistering.
• ‌Boiling resistance‌: Maintains adhesion after 60min @100°C (JIS K 5600-7-2).
• ‌Fast drying‌: Tack-free in 45s @80°C (20μm wet film, R.H. 50%).

‌4. Pigment Compatibility‌

• ‌Organic pigments‌: Phthalocyanine blues, quinacridone reds (dispersibility >95%).
• ‌Inorganic pigments‌: TiO₂, iron oxides (Hegman grind ≤5μm).
• ‌Metallic effects‌: Aluminum flake orientation without leafing issues.

‌5. Printing Process Advantages‌

• ‌Anti-screen blocking‌: Continuous 8h gravure printing @60m/min, 200-line/in.
• ‌Re-solubility‌: Redissolves dried ink layers for press cleanup (ethanol/IPA blends).
• ‌Rheology control‌: Thixotropic index 1.2–1.5 (Brookfield RVDV-III, spindle 52).

‌6. Formulation Flexibility‌

• ‌Acrylic compatibility‌: Blends with ≥80% acrylic emulsions without coagulation.
• ‌Crosslinking options‌: Self-crosslinking or aziridine-assisted curing.

‌Technical Specifications‌

‌Applications‌

‌I. Flexible Packaging Inks‌

1. ‌Gravure Printing‌

   • High-speed (150–200m/min) inks for PET snack bags and OPP labels.
   • Alcohol-based formulations for shrink sleeves (≤2% residual shrinkage).

2. ‌Flexographic Printing‌

   • FDA-compliant inks for CPP retort pouches (121°C/30min sterilization).
   • Nitrocellulose-free inks for BOPA laminated films.

3. ‌Specialty Inks‌

   • Cold-seal release coatings for chocolate bar wrappers.
   • Anti-counterfeiting taggants for pharmaceutical blister packs.

‌II. Industrial Coatings‌

1. ‌Adhesion Promoters‌

   • Primer for polyolefin films in composite laminates.
   • Release coatings for silicone-based liners.

2. ‌Functional Layers‌

   • Barrier coatings for aluminum foil lidding.
   • Anti-fog coatings for fresh produce packaging.

‌Formulation Guidelines‌

‌1. Standard Ink Formulation‌

‌2. Process Parameters‌

• ‌Grinding‌: 2–4h @2,000–3,000 rpm (horizontal bead mill, 0.3mm ZrO₂ beads).
• ‌Filtration‌: 25μm sock filters for gravure; 100μm for flexo.
• ‌Drying‌: 70–90°C air impingement; IR pre-drying optional.

‌Storage & Handling‌

‌1. Storage Conditions‌

• ‌Temperature‌: 0–40°C (32–104°F).
  • ‌Critical notes‌:
    • Below 0°C: Freezing occurs; thaw gradually at 25°C (do not force-heat).
    • Above 40°C: Irreversible agglomeration; avoid thermal cycling.
• ‌Environment‌:
  • Ventilated, shaded area (UV exposure <5 kLux·hr/year).
  • Sealed original containers to prevent:
    • Water evaporation (viscosity increase >50%).
    • Skin formation (maintain >80% relative humidity).

‌2. Shelf Life & Quality‌

• ‌Guaranteed period‌: 6 months from production date (batch-code tracked).
• ‌Post-thaw recovery‌:
  • Gentle agitation @30–40°C for 24h (avoid high-shear mixing).
  • Filter through 100μm mesh before reuse.

‌Quality Assurance & Compliance‌

• ‌Certifications‌:
  • FDA 21 CFR 175.300 (indirect food contact).
  • EU AP(89)1 for food packaging inks.
• ‌Batch consistency‌:
  • Viscosity tolerance ±10%.
  • pH variation ±0.3 units.
• ‌Safety‌:
  • Non-hazardous per OSHA 29 CFR 1910.1200.
  • Biodegradability: 60% in 28d (OECD 301F).

‌Environmental Benefits‌

• ‌Zero solvent emissions‌: Aligns with California’s SCAQMD Rule 442.
• ‌Energy efficiency‌: 30% lower drying energy vs. solvent-borne analogs.
• ‌Circular economy‌: Compatible with recycled OPP/PET substrates.

‌Competitive Advantages‌

1. ‌Dual-functionality‌: Eliminates separate grinding resins.
2. ‌Print longevity‌: 10,000+ linear meters without screen blockage.
3. ‌Regulatory edge‌: Meets Nestlé Guidance on Packaging Inks.
4. ‌Global compliance‌: REACH SVHC-free; Korea K-REACH registered.

‌Conclusion‌

Waterborne Polyurethane Resin TDD-600 redefines sustainable printing solutions, offering unmatched versatility across flexible packaging and industrial coating applications. Its unique integration of grinding and film-forming properties streamlines ink production while delivering critical performance metrics—heat resistance, adhesion, and printability—without compromising eco-compliance. From high-speed gravure presses to complex multilayer laminates, TDD-600 empowers formulators to meet stringent technical and regulatory demands. Backed by six-month shelf stability and global safety certifications, this resin represents the future of water-based coating technology.

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