Introduction to CE certification of traffic sign reflective film:
There are many classification methods of reflective film. The generally accepted classification principle is based on the basic structure of the retroreflective unit and the retroreflective coefficient of the front Photometric Performance of the retroreflective film. However, considering the different technology of the reflective film, some of them are specially designed to solve the problem of negative reflection brightness, some of them are designed to take into account two aspects of performance, and some of them are designed to meet the needs of visual recognition under severe weather conditions, so this classification method also has shortcomings. Therefore, it is necessary to be familiar with and master the application conditions and design functions of various reflective films.
Glass bead reflective film appears earlier, but its technology changes less. There are two main types: one is lens embedded reflective film, which is customarily called engineering reflective film; the other is sealed capsule type, which is usually called high-strength reflective film. For the needs of application, it should be noted that in lens embedded reflective film, due to its long history, different factories Home, in the long production and manufacturing process, using the different lens diameter, density and thickness of weather resistant coating, has made many kinds of reflective films, such as super engineering reflective films, mainly on the basis of Engineering reflective films, using higher quality glass beads, and increasing the density of glass beads to improve some brightness; commonly known as economic reflective films, mainly produced in China Production is basically achieved by reducing the number and density of lenses (glass beads) on the basis of engineering grade reflective film technology. These two kinds of reflective films, economic grade reflective films, can not meet the needs of traffic safety. They are mostly used in the commercial field. They are rarely listed in the international standards of traffic safety directional light.
CE certification for reflective materials:
Reflective materials, also known as retroreflective materials and retroreflective materials, are widely used in various road traffic safety facilities, such as traffic sign markings, raised road signs, contour signs, traffic cones, anti-collision tubes, as well as automobile number plates, clothing shoes and hats, fire protection, railways, water transport, mining areas, etc., which can be divided into traffic sign reflective materials, road marking reflective materials, raised road signs, contour signs Reflective materials for clothing, etc.
The realization of light's retroreflective function is realized by various reflective materials with retroreflective performance. Most of these materials are not naturally formed in nature, but rely on the creativity of human beings to invent and synthesize new materials postnatally. Retroreflection technology is a collection of optics, materials, mathematics, organic chemistry and other disciplines and technologies.
Certification standards include: CE certification for reflective materials, EN471 CE certification for reflective clothing, EN1150 CE certification for reflective film, en12899 CE certification for luminous film, din67510 and other different standards. Specific test standards shall be determined according to actual products.