As an important branch of screen printing technology, silk screen silicone occupies an important position in the printing field due to its unique process characteristics and wide application scenarios. The core principle is based on the hollow structure of the screen printing plate - the mesh holes in the graphic and text areas are permeable to silicone gel, while the non graphic and text areas are blocked by photosensitive gel. The silicone gel penetrates from the mesh holes to the surface of the substrate through pressure from a scraper, forming a three-dimensional and durable pattern.

This process involves plate making steps such as stretching the mesh, applying photosensitive paste, exposure and development, as well as key steps such as glue adjustment, printing, and vulcanization molding. The two-component liquid silicone rubber (A component transparent silicone and B component curing agent are mixed in a ratio of 10:1) needs to be heated or cured at room temperature to ensure the mechanical strength and environmental characteristics of the final pattern.

The outstanding advantages of silk screen silicone are its wide material adaptability and excellent physical properties. The range of substrates includes textiles, non-woven fabrics, genuine leather, imitation leather, ceramics, glass, metal and silicone products, etc. High precision printing can be achieved regardless of flat, curved or soft and hard materials; The thickness of the ink layer can reach 20-100 microns, far exceeding traditional printing processes, giving the pattern a strong sense of three dimensionality and covering power, especially when white covers dark substrates, which can be completed in one molding.

In terms of process flow, the silk screen silicone needs to choose an 80-120 mesh screen according to the pattern fineness, and the thickness of the photosensitive adhesive should be controlled at 0.1-0.3mm. The leveling can be adjusted by adding diluents (such as crude benzene and pure toluene), and the color effect can be achieved by combining with color paste or gold and silver powder. After printing, it needs to dry naturally within 6-10 minutes, then be baked and cured at 80-150 ℃, or use a multi-layer composite coating system to improve wear resistance - the bottom layer enhances coverage, the middle layer optimizes color expression, and the surface layer enhances cleaning resistance and tactile protection. The collaborative technology of laser engraving and screen printing further solves the pain points of fading and deformation of silicone button characters. Through precise positioning by laser engraving and rich color by screen printing, it improves character clarity and durability in high demand scenarios such as medical equipment and industrial control.

Regarding liquid silicone rubber, please refer to our website for details: IOTA Liquid Silicone Rubber