| 反光膜分类及说明 |
| 添加时间：2018/1/4 16:38:21 浏览次数： |
| （一） 反光膜按其逆反射原理，可分为玻璃珠型和微棱镜型；玻璃珠型反光膜按其结构分为透镜埋入型和空气胶囊型两种，前者为工程级反光膜、超工程级反光膜，后者为高强级反光膜，高强膜已将玻璃珠型反光膜的反光性能发挥至极限，但仍无法与同级别的微棱镜型反光膜相比。 (a) reflective film according to the inverse reflection principle, can be divided into glass bead type and micro prism type reflective film; glass bead type according to its structure is divided into lens embedded type and air capsule type two kinds, the former for engineering grade reflective film, super engineering grade reflective film, which is of high strength grade reflective film, high strength film the reflective properties of glass bead type reflective film of the play to the limit, but still can not with the micro prism type reflective film compared to the same level. （二）国家标准是依据反光膜的反光性能、使用寿命将反光膜进行分类或是分级，原国标分为五个级别，新国标分为七类。新国标中的七种类型如下： (two) the national standard is to classify or classify the reflective film according to the reflective performance and service life of the reflective film. The original GB is divided into five levels, and the new GB is divided into seven categories. The seven types of the new national standard are as follows: 1、 一类——通常为透镜埋入式玻璃珠型结构，称工程级反光膜，光度性能见表1，使用寿命一般为7年，可用于永久性交通标志和作业区设施。（即类似原国标中的四级七年工程级反光膜，例如：国产通明TM7600系列工程膜、日本NCI EG-7系列等，原国标要求的四级反光膜耐候性是五年）。 1, a class -- usually lens embedded glass bead structure, called engineering reflective film, luminosity performance is shown in Table 1, the service life is generally 7 years, it can be used for permanent traffic signs and operation area facilities. It is similar to the four grade and seven grade engineering reflective film in the original national standard, for example, the homemade TM7600 series engineering film and Japan NCI EG-7 series. The four grade reflective film required by the original national standard is weatherproof for five years. 另外，新国标一类膜与原国标四级膜的主要区别是： In addition, the main difference between the new national standard and the four grade membrane of the original national standard is: a）增加了橙色、灰色两个颜色； A) added orange and gray two colors; b）反光性要求改变：将观测角由原来的0.2°、0.33°、1°改0.2°、0.5°、1°，在个别颜色个别角度上上降低了反光性能要求（例如白色），目的是强调了反光膜的广角性、大角度性； B) the change of reflectivity requires that the viewing angle should be changed from 0.2 degrees, 0.33 degrees, 1 degrees to 0.2 degrees, 0.5 degrees, 1 degrees, and the reflective performance requirements (such as white) should be reduced on the individual angles of individual colors. The purpose is to emphasize the wide angle and large angle of reflective films. c）明确提出一类膜的使用寿命为七年，耐候性检测中的光度（逆反射系数）最大衰减度仍为不低于标准值的50%。 C) clearly proposed that the service life of a class of films is seven years, and the maximum attenuation of the photometric (reverse reflection coefficient) in the weatherability detection is still not less than 50% of the standard value. |
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