With the growing demand for personalized customization and high durability, the application of UV screen printing inks on non-absorbent substrates such as glass and ceramics continues to expand. With its fast curing, high adhesion and environmentally friendly characteristics, this type of ink has become a core material in the fields of decorative glassware, architectural ceramics, electronic glass panels, etc. This article will analyze the technical advantages of UV screen printing inks and introduce how U-Sunny T-7770 UV resin enables the development of high-performance inks.
1. Core advantages of UV screen printing ink
Fast curing and efficient production
UV screen printing ink can be cured within seconds by ultraviolet irradiation, greatly shortening the production cycle. For example, in glass decoration printing, traditional inks need several hours to dry, while UV inks can directly enter the next process after in-line curing, increasing production efficiency by more than 30%.
Excellent adhesion and durability
Glass and ceramic surfaces are smooth and chemically inert, and require extremely high ink adhesion. Through formula optimization (such as adding highly active resins and nanofillers), UV inks can form strong chemical bonds, with a peel strength of 5-8 N/cm², scratch resistance, 800℃ high temperature and acid and alkali corrosion resistance, meeting the stringent requirements of outdoor signs and high-temperature tableware.
Environmental protection and energy-saving characteristics
UV inks do not contain volatile solvents (VOCs), and the curing process consumes low energy. Taking ceramic printing as an example, compared with traditional solvent-based inks, UV technology can reduce carbon emissions by 40%, meeting EU RoHS and REACH environmental protection standards.
2. U-Sunny T-7770 UV resin: the cornerstone of high-performance inks
U-Sunny T-7770 UV resin is a functional resin designed for glass and ceramic substrates. Its characteristics include:
Ultra-high adhesion: Through molecular structure modification, T-7770 forms a dense cross-linked network on the glass surface, with an initial adhesion of 9 N/cm², and no risk of falling off during long-term use.
Temperature resistance and stability: In the temperature range of -50°C to 300°C, the resin maintains stable performance and is suitable for printing automotive glass heating elements and high-temperature sterilization equipment.
Low shrinkage and high precision: The curing shrinkage rate is <1.5%, ensuring the clarity of fine patterns, supporting high-precision screen printing above 1000 mesh, and suitable for microcircuit glass substrates.
3. Collaborative application: UV adhesive and pressure-sensitive adhesive
UV technology is not limited to inks, but also plays a key role in glass and ceramic processing:
UV adhesive
Used for bonding and sealing glass components, such as smart mirror sensor packaging. UV adhesives have a fast curing speed (3-5 seconds), a bonding strength of 15 MPa, and no thermal stress damage, suitable for brittle substrates.
UV pressure-sensitive adhesive
Used for temporary fixing of ceramic decals or glass protective films, no residue after peeling. For example, Konica Minolta AccurioShine 3600 equipment combines UV pressure-sensitive adhesive to achieve local glazing and fast positioning, improving decoration efficiency.
4. Industry Challenges and Future Trends
Despite the significant advantages of UV technology, it still faces the following challenges:
The curing depth of dark ink is insufficient: high-penetration UV light sources or dual curing systems (such as UV/thermal hybrid curing) need to be developed.
Cost and equipment adaptability: Small and medium-sized enterprises need more economical curing equipment, such as modular LED UV systems.
In the future, with the popularization of innovative materials such as U-Sunny T-7770, UV screen printing technology will develop towards intelligence and multifunctionality, such as combining 3D printing glazes or electronic conductive inks, and expanding to the fields of smart glass and IoT devices.
UV screen printing inks and supporting materials (such as U-Sunny T-7770 resin) are driving the upgrade of the glass and ceramic processing industry. Its high efficiency, environmental protection and high precision provide core support for personalized customization and Industry 4.0 production. If you need technical solutions or sample testing, please contact professional suppliers for customized services.