With the urgent demand for high-performance environmentally friendly materials in the manufacturing industry, thermoplastic polyurethane (TPU) UV coating technology has become a revolutionary force in the fields of inks, adhesives and pressure-sensitive adhesives due to its fast curing, high adhesion and customizable characteristics. The T-7050 UV resin launched by Shenzhen U-Sunny, as the core material of TPU UV coating, promotes the industry to develop towards green and efficient through technological innovation.
1. The core advantages of TPU UV coating
TPU material itself has excellent flexibility, wear resistance and weather resistance. After combining with UV curing technology, its performance and application scenarios are further expanded:
Fast curing and efficient production: UV light can complete curing within seconds, which is more than 10 times more efficient than traditional thermal curing processes, and is especially suitable for high-speed production line requirements.
Environmental protection and low energy consumption: Solvent-free formula reduces VOCs emissions, and UV-LED light sources are mercury-free and comply with RoHS and REACH standards.
Performance adjustability: By adjusting the degree of cross-linking of the resin, the hardness and flexibility can be balanced to meet the bonding or coating requirements of different substrates (such as plastics, metals, and glass).
Chemical resistance and durability: Anti-UV aging, hydrolysis resistance and chemical corrosion resistance, suitable for harsh environments such as outdoor equipment and automotive parts.
2. Application of T-7050 UV resin in ink, adhesive and pressure-sensitive adhesive
2.1. High-performance UV ink
TPU UV coating gives ink stronger adhesion and wear resistance, especially suitable for complex surface printing:
Metal texture printing: used for electronic product housing or packaging, UV curing to achieve mirror effect, friction resistance increased by 40%.
3D printing photosensitive ink: T-7050's high transmittance (> 92%) and low shrinkage ensure printing accuracy and color stability.
2.2. Environmentally friendly adhesive
Optically transparent adhesive (OCA): used for touch screen bonding, with a transmittance of 92% after curing, no bubbles and yellowing resistance, suitable for the bending requirements of flexible display screens.
Structural bonding: Shear strength for low surface energy materials such as PP and PC is > 15MPa, temperature resistance range is -40℃ to 120℃, meeting the bonding requirements of automotive interior parts.
2.3. Functional pressure-sensitive adhesive
Removable design: By adjusting the cross-linking density of the TPU coating, repeated pasting without residual adhesive can be achieved, suitable for temporary fixing film of electronic products.
Low temperature resistant label: It remains sticky at -20℃ and is widely used in cold chain logistics packaging.
3,Comparison of technical parameters of T-7050 UV resin and traditional resin
| Indicators | T-7050 | Traditional UV resin | |
|---|---|---|---|
| Curing speed (365nm) | ≤10s | 20秒 | |
| Adhesion (PP substrate) | ≥4B | 2B-3B | |
| Elongation at break | 180%-220% | 80-120% | |
| Chemical resistance (5% NaOH) | No corrosion, no discoloration | Slight corrosion on the edges | |
| Transmittance (after curing) | 92% | 85%-88% | |
| Storage stability (25°C) | 6 months no settling | 3 months slight stratification |
4. Shenzhen U-Sunny's technical advantages and industry empowerment
As an innovator in the field of TPU UV coatings, Shenzhen U-Sunny provides a full range of solutions through its T-7050 products:
Customized development: adjust hardness (Shore A 60-90), curing speed and chemical resistance parameters according to customer needs.
Global compliance certification: passed REACH certification.
Technical support network: provide one-stop services from formula design, process optimization to production line adaptation, shortening customer R&D cycle.
5. Future Trends: Cross-border Application of TPU UV Coating
With the popularization of new energy and smart devices, the application scenarios of T-7050 continue to expand:
Flexible electronics: As a protective coating for wearable devices, it takes into account both insulation and bending life (>100,000 times).
Biomedical: Develop antibacterial TPU UV adhesives for medical device packaging.
Green packaging: Combine bio-based TPU materials to reduce carbon footprint and respond to global sustainable development goals.
Conclusion
Shenzhen U-Sunny T-7050 UV resin provides efficient and environmentally friendly solutions for the ink, adhesive and pressure-sensitive adhesive industries by integrating TPU materials and UV curing technology. Its excellent performance and customized services are driving the transformation of the manufacturing industry towards intelligence and greenness. If you need to obtain samples or technical consultation, please contact our engineering team to start a new chapter of innovative cooperation!