Electronic Chemical Ink
Electronic Applications
Sun Delight Chemical began with a focus on professional printing and low-temperature adhesives, and has progressively expanded into the development of advanced processes and new materials—serving a rapidly growing range of applications in the era of Artificial Intelligence (AI).
We provide flexible insulating and conductive material solutions for IoT communication systems, sensor modules, and wearable AI human–machine interface (HMI) devices.
In the biotechnology sector, we supply conductive materials with exceptional electrical stability and customized insulating materials for biosensor components.
For automotive HMI systems, we have extensive collaboration experience with leading global manufacturers, delivering adhesives that ensure high stability and resistance to environmental testing.
Our ink applications have also evolved from traditional printing to include dispensing, JET, and inkjet printing (IJP) processes, supporting diverse manufacturing needs.
Chemical Ink Application
Membrane Switches
Thermal-Cure Insulating Ink
Designed for products in high environmental testing or harsh conditions, such as automotive and military/industrial control applications. Offers excellent flexibility and passes 1000V / 200 Mega high-voltage impact tests. Stable printability for long production runs, preventing short-circuit issues common in standard products. Customizable in color and viscosity to meet diverse design needs.
UV-Cure Insulating Ink
Flexible and bend-resistant, with excellent heat-press tolerance. Colors can be customized; even in black, UV light penetration and adhesion remain stable. Maintains consistent printability without abnormal viscosity increases over time.
Glucose Test Strips
Conductive Materials – Silver Paste, Carbon Paste
Customizable in conductivity and other properties. HOYO offers silver pastes with 40–75% silver content, while carbon paste formulations can be tailored to match enzyme characteristics.
Thermal-Cure Insulating Ink
High viscosity stability for consistent printability in mass production. Fully cures at 90°C in just 30 seconds, reducing processing time and minimizing substrate heat accumulation.
Touch Panels
Thermal-Cure Insulating Ink
Suitable for ITO film and ITO glass. Compatible with 150–400 mesh screens, ensuring stable printability over long production runs. Offers high environmental durability and stability, widely used in military, industrial control, and automotive applications.
UV-Cure Insulating Ink
Stable printability for jumper line processes. Flexible, heat-press resistant, and highly durable in challenging environments. Customizable in color, with a competitive price for high-volume consumer products.
Peelable Mask
Adjustable adhesion and protection range. Suitable for touch panels, FPCs, LCDs, membrane switches, and any process requiring temporary protection. Customizable for temperature, acid/alkali resistance, and peel timing.
Etching Ink
Available in white, black, and transparent variants. Suitable for standard and roll-to-roll processes. Can be cleaned at 35–40°C without alkali or chemicals. Uses pure phosphoric acid etching for safety, easy dilution, and minimal environmental impact.
Automotive Ink
Thermal-Cure Insulating Ink
Transparent insulating ink designed for automotive applications, ideal for backlit designs in touch-switch lighting and central control panels.
Thermal-Cure Insulating Ink
Developed for membrane switch circuits, also used in marine and industrial equipment applications.
PCB/ FPCB Applications
Peelable Mask
Suitable for PCB and rigid-flex boards, providing protection during etching or plating processes. Easily removed after lamination, with customizable properties to meet application needs.