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Blended Polyester Resin, Low Gloss Polyester/TGIC for Heat Transfer Print Powder Coating
◎Introduction
NH8003/NH8606 are saturated carboxyl polyester resins for low gloss polyester/TGIC powder coatings by a dry blend procedure, suitable for heat transfer print powder coatings with good outdoor durability and excellent mechanical properties.
Heat transfer technology is to transfer the graphics and text originally printed on paper or film to the surface of the substrate by heating to obtain a clear and beautiful pattern to achieve the effect of logo or decoration. It was first mainly used in fabric transfer printing in production. With the rapid development of material science, the application scope of thermal transfer technology has gradually expanded. The combination of thermal transfer technology and coatings in architectural decoration, interior decoration, and other fields is a new trend that meets people's needs and environmental protection requirements. Powder coating is an environmentally friendly coating that can form 100% film and has no solvent pollution. It has the characteristics of low energy consumption and recyclability. Powder coating thermal transfer technology is a special process in which the transfer ink on high-precision paper is sublimated into the cured coating at a fixed temperature so that the substrate has a specific pattern or texture effect. Thermal transfer technology can change the appearance of powder coatings and achieve decorative effects of imitation wood grain, marble grain, or other patterns. It has been used and promoted in the fields of outdoor architecture, interior decoration, transportation, and home appliances.
◎Basic Features
Good leveling
Excellent mechanical properties
Good weathering resistance
◎Recommend Formulation:
| Formulation | NH8003 | NH8606 | TGIC | Filler ＆ pigment | Leveling agent | Benzion |
| I | 270 | — | 30 | 200 | 3 | 1.5 |
| II | — | 288 | 12 | 200 | 3 | 1.5 |
◎Specifications I
| Items | NH8003 | NH8606 |
| Appearance | Pale yellow flake | Pale yellow flake |
| Color (50% DMF) | ≤3 | ≤3 |
| Acid Number (mgKOH/g) | 48～54 | 19～24 |
| Softening Point (℃) | 108～118 | 103～113 |
| Glass Transition Temp. (℃) | ～68 | ～60 |
| Melting Viscosity (200℃, cone/plate, mPa·s) | 5000±1000 | 9000±1000 |
| Reactivity at 180℃ (s, 10, 4% TGIC) | 80±30 | 340±60 |
| Curing Requirement | 200℃×10min | |
| Packaging | PE Bags, Net Weight 25kg ± 0.1kg / bag | |
◎Specifications II
| Extrusion Condition | Two-screw Extruder | |
| Zone I: 90～110℃ | Zone II: 110～120℃ | |
| Speed of Revolution | 500～1200rpm | |
| Fineness of Powder | ＜100μm | |
| Blending Extrude I and II with weight ratio 1:1 before grinding. | ||
| Application Condition | Electrostatic Spraying With | 40～70KV |
| Coating Film Thickness | 50～80μm | |
| Degreased Cold-rolled Steel | 0.5mm | |
| Film Properties | Gloss (60°) | ≤35% |
| Bending (φ1mm) | Pass | |
| Adhesive (1mm, grade) | 0 | |
| Pencil Hardness | ≥1H | |
| Impact (50cm) | Pass | |
◎More Code
| Code | Ratio | Cure Cycle | Acid Value (mgKOH/g) | Viscosity (mPa.s/200℃) | Tg (℃) | Reactivity (s/180℃) | Properties |
| NH8081 | 90/10 | 200℃*10min | 49~55 | 7000~9500 | ~67 | 50-100 | Dry-blended for 25-35% gloss powder coatings with good outdoor durability and storage stability. |
| NH8588 | 95/5 | 200℃*10min | 19~24 | 6000~9000 | ~64 | 430-580 | |
| NH-8506 | 95/5 | 200℃*10min | 22~25 | 7600~8600 | ~58 | 150-270 | Dry-blended with NH8081. Good outdoor durability and flow, outstanding mechanical properties and excellent boil water resistance. |
| NH8586 | 95/5 | 200℃*10min | 21~25 | 6500~7300 (220℃) | ~69 | 120-220 | Dry-blended with NH8081, good weatherability and excellent boiling water resistance. |
| NH8001 | 90/10 | 200℃*10min | 48~54 | 2700~4300 | ~62 | 50-110 | Dry-blended for 25-40% gloss powder coating; Excellent anti-yellowing, good flow. |
| NH-8505 | 95/5 | 200℃*10min | 19~24 | 5000~7500 | ~62 | 280-520 | |
| NH8003 | 90/10 | 200℃*10min | 48~54 | 4000~6000 | ~68 | 60-120 | Dry-blended for low gloss powder coatings, suitable for heat transfer print powder coatings with good outdoor durability and excellent mechanical properties. |
| NH8606 | 96/4 | 200℃*10min | 20~25 | 8000~10000 | ~60 | 280-400 | |
| NH8002 | 90/10 | 200℃*10min | 49~55 | 3500~6500 | ~61 | 50-150 | Dry-blended for low gloss powder coatings with good flexibility and high impact resistance. |
| NH8507 | 95/5 | 200℃*10min | 21~25 | 7500~10500 | ~62 | 200-400 |
◎Remarks: All the polyester resins could be customized to Non-tin (A), anti gas burners (G), tribo gun (T) and anti-blooming (F).
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