In recent years, reflective fabrics, as a safety warning material, have been widely used in various places, such as road traffic, construction, fishing vessels, etc. However, in some cases, people may encounter an environment with strong ultraviolet radiation, which makes the visibility and use effect of reflective cloth questionable. So, under ultraviolet light, can safety reflective tape for clothing continue to play their due role?

Basic principles of reflective fabrics

The main principle of reflective fabrics is to use optical elements such as glass beads or prisms to reflect light back to the direction of the light source, thereby achieving passive long-distance illumination of the light source. According to different reflection principles, reflective cloth can be divided into various types such as retro-reflective, transmissive and scattering. Among them, retroreflective fabric is the most common type. It has the advantages of high reflectivity, high weather resistance, and high viewing distance.

The generation and harm of ultraviolet rays

Ultraviolet light is a part of sunlight with wavelengths between 400 nanometers and 10 nanometers. Moderate ultraviolet radiation is beneficial to the human body, but excessive ultraviolet radiation can cause harm to the human body. Long-term exposure to ultraviolet rays can cause skin problems such as sunburn, aging, allergies, and may even induce skin cancer. In addition, ultraviolet rays can also cause damage to the eyes, leading to eye diseases such as cataracts and keratitis.

Can reflective fabrics be used under UV rays?

Under ultraviolet light, the visibility and use effect of reflective cloth will be affected to a certain extent. First, excessive UV irradiation may destroy the retroreflective coating on the surface of the reflective cloth, resulting in a decrease in its reflective performance. Secondly, the blue light component in ultraviolet rays can cause damage to the eyes. While reflective cloth reflects blue light, it may also cause certain irritation to the eyes. However, this does not mean that reflective cloth is completely useless under UV rays.

Under the irradiation of ultraviolet rays, reflective fabrics still have a certain reflective effect, which can improve people's visibility and reduce the risk of traffic accidents. In addition, the durability and weather resistance of reflective fabric are also strong, and it can maintain the use effect for a long time under the influence of ultraviolet rays. Therefore, in some cases, such as in environments with strong ultraviolet rays such as plateaus and sea surfaces, reflective cloth is still an effective safety warning material.

To sum up, although reflective fabrics will be affected to a certain extent under ultraviolet rays, they still have certain use value. In specific environments, such as plateaus, sea surfaces and other places with strong ultraviolet rays, reflective cloth can improve people's visibility and reduce the risk of traffic accidents. However, when using reflective cloth, you still need to pay attention to protecting your skin and eyes from UV rays.