UV inkjet technology is an advanced printing process that combines inkjet printing with ultraviolet (UV) curing technology. In recent years, it has been widely adopted across various industrial sectors. Its core principle involves ejecting UV ink onto the surface of a substrate via an inkjet printer, followed by immediate curing of the ink under ultraviolet irradiation. This technology not only achieves high-precision and high-efficiency printing results but also offers significant advantages such as environmental friendliness and energy savings.

B-251 is a difunctional Polyurethane Acrylate (PUA) with medium molecular weight. It offers excellent flexibility of the cured film, fast curing speed, and good wetting properties on black ink.

A privacy screen protector is a type of screen film designed to protect visual privacy, commonly used on devices such as smartphones, tablets, and laptops. Its primary function is to prevent onlookers from viewing the screen content from side angles. The composition of a privacy screen protector typically consists of the following layers.

In summary, the anti-peeping principle of anti-spy films relies on the internal micro-louver structure to control light propagation. This ensures that screen content can only be clearly seen within a certain front-facing angle, while it becomes blurred or invisible from the side due to light obstruction, thus protecting the screen content from being peeped at by others.