How Does It Works Of Retro Reflective Film
According to the principle of reflective film, the reflective film should be named retro-reflective film, which is a film that reflects light or radiation back to the light source by using micro glass bead balls or artificial prisms.
The principle of micro glass beads reflective sheeting
Here is an image that can show you the basic principle of the reflective film -micro glass bead balls.
The left image shows the glass bead reflectivity, this is the original reflective technology. This kind of reflective film has about 30% light reflection efficiency, and the range of light reflection is relatively large, we also said it has a wide reflective angle. This type of reflective film is similar to a floodlight, only bright near but not bright in the distance.
Thus this reflective technology is used for retroreflective fabric. The reflective fabric factory always enhances the reflective wide-angle to obtain a good reflective effect. When the light is incident at a great angle with the surface of the reflective material, it can still obtain a good reflective effect.
Floodlight:
The principle of prismatic reflective sheeting
The picture below shows the working principle of the micro-prism reflective film.
The micro-prism retro-reflective film has higher reflective efficiency than micro glass beads, up to 80%, and the reflective lighting is back to a more concentrated area than glass beads, the beam of light stays tight and gathered together over a long distance, same as the spotlight.
Thus, micro-prism retro-reflective technology is always used for high visibility reflective sheeting, applied in highway signs and warning reflective tape on the vehicle. Prismatic reflective sheeting films divide into different grades, engineer-grade reflective sheeting, commercial-grade retroreflective sheeting, high-intensity grade reflective vinyl and license plate-grade reflective sheeting, these four types of reflective sheeting are made for different application at a suitable cost.
Finally, the retro-reflective concentrated beam is near the original lighting source, you should keep your eyes on the parallel lines of the original light source, this is the reason why drivers can see the brightness reflective road sign, but the person on the road can’t see it.
XW Reflective is a leading reflective sheeting manufacturer in China, with decades years experiences in the retro-reflective film industry, specialized in producing and selling retro-reflective sheeting vinyl, with strict quality control, delivery guarantee, best service, and we also accept OEM service, if you are looking for reflective film supplier, please don’t hesitate to contact us for more details.
