As a safety functional product, it has been widely used in outdoor work for outdoor workers in special industries such as transportation, sanitation, and public security. When the person wearing and carrying the reflective material works or walks at night, the function of retroreflection allows the driver to find the target at a long distance, thereby avoiding an accident. For ordinary people, there are different levels of nighttime activities, so adding reflective fabrics to their clothing, shoes, hats, bags, rain gear, etc., can improve their own safety. The degree to which the reflective cloth improves safety is measured by its reflection intensity. The higher the reflection intensity, the better the eye-catching effect, and the farther the driver finds the target.