Reflective film is a thin film can be directly applied to the retroreflective material, but also the most widely used as a retroreflective material. In 1937, the world's first reflective film in the United States 3M company was born. This is the starting point for the history of large-scale application of reflective signs. In 1939, in the United States Minnesota road side, for the first time in the open air conditions using a Scotchlite TM reflective film produced signs, since then, opened a series of reflective products for traffic signs of the new era, created a A new traffic safety industry. This year, the US traffic mark national standard (1939 edition of the United States "unified traffic control facilities manual", Manual of United Traffic Control Devices, 1939) formally provides that the use of reflective film manufacturing traffic signs.
Since then, with the chemical industry, especially the development of synthetic resin, various research and development institutions continue to research and innovation, the use of glass beads technology, synthetic resin technology, film technology and coating technology, have developed a series of high-quality anti-reflective products.
Beginning in the 1940s, this originally fabricated reflective film was dubbed "engineering grade" reflective film, widely used for road traffic signs. Since then, for the personal safety of clothing and other areas of the reflective film and a series of products, but also with the advent of synthetic resin, social development needs, have been developed. Since then, along with a series of materials and optical technology research results, especially the emergence of micro-prism reflective material, so that the original mainly used for traffic signs reflective material, began to be gradually updated, better reflective material instead.
Reflective film classification methods are many. The more commonly accepted classification principle is based on the basic structure of the retroreflective element, and the sorting method based on the inverse reflection coefficient of the front side of the retroreflective film. But taking into account the different processes of reflective film, some are specifically designed to solve the non-frontal retroreflective brightness, and some are both two aspects of performance, and some are for adverse weather conditions under the visual needs, so this classification method, also There are shortcomings. Therefore, familiar with and master a variety of reflective film application conditions and design functions, it is very necessary.
In the traditional habit, according to the reflective film reflective unit structure, the reflective film is divided into two categories, glass beads reflective film and micro-prism-type reflective film. Each type of reflective film also contains many types, such as micro-prism-type reflective film, due to the use of more advanced technology, its material selection and prism structure, have a lot of changes, can cope with more traffic needs. According to the prism form and technical characteristics, micro-prism-type reflective film can be divided into long-range retroreflective ability of the truncated prism reflective film, close to large angle retroreflective good angle prism reflective film, and take into account the The requirements of the full prism reflective film, daytime and bad weather conditions are good performance of the full prism reflective film, in line with the traditional engineering grade retro-reflective parameters of the prism-type reflective film and so on.
Since then, with the chemical industry, especially the development of synthetic resin, various research and development institutions continue to research and innovation, the use of glass beads technology, synthetic resin technology, film technology and coating technology, have developed a series of high-quality anti-reflective products.
Beginning in the 1940s, this originally fabricated reflective film was dubbed "engineering grade" reflective film, widely used for road traffic signs. Since then, for the personal safety of clothing and other areas of the reflective film and a series of products, but also with the advent of synthetic resin, social development needs, have been developed. Since then, along with a series of materials and optical technology research results, especially the emergence of micro-prism reflective material, so that the original mainly used for traffic signs reflective material, began to be gradually updated, better reflective material instead.
In the traditional habit, according to the reflective film reflective unit structure, the reflective film is divided into two categories, glass beads reflective film and micro-prism-type reflective film. Each type of reflective film also contains many types, such as micro-prism-type reflective film, due to the use of more advanced technology, its material selection and prism structure, have a lot of changes, can cope with more traffic needs. According to the prism form and technical characteristics, micro-prism-type reflective film can be divided into long-range retroreflective ability of the truncated prism reflective film, close to large angle retroreflective good angle prism reflective film, and take into account the The requirements of the full prism reflective film, daytime and bad weather conditions are good performance of the full prism reflective film, in line with the traditional engineering grade retro-reflective parameters of the prism-type reflective film and so on.
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