Reflective Sheeting

How are the reflection effects of the traffic reflective film? Traffic signs are the main equipment for marking and controlling traffic. Therefore, whether in the day or at night, it can have a great function of reflection. So, with these functions and effects, it meets people’s demand as well as requirements for improving the visibility at night. That is to say, the traffic signs must be changed to meet the standard reflection index, the function of saturation, as well as excellent wide-angle lens properties. How do ordinary people understand the wide-angle properties? When the car headlights shine directly on the signboard from the front, the inclination angle (the angle between the incident light and the normal of the sign surface) is not large. But when turning or at a multi-channel intersection, the inclination angle is relatively large under special conditions. If the inclination angle changes from small to large, and the retroreflective coefficient value is not greatly affected, this type of highway traffic reflective film has a good wide-angle lens performance. So, people have a great choice of the retro-reflective materials to shine under the headlights of vehicles, which account for the diffraction properties of light, forming the highlight of the inner part, while the outer part is dim due to the difference in reflection lines. Therefore, when the logo is at a certain distance from the car, different car models have different observation angles, resulting in individual differences in their visual recognition. According to many scientific studies, the visual distance of signs at different speeds and relative heights is about 150m to 50m. The observation angle of a standard car is 0.2°~0.9°, and the observation angle of a large truck is 0.5°~2.0°. That is to say, the observation angle of a large truck is more than twice that of a car. The driver's line of sight of a large truck is close to the reflective field and has higher requirements for the reflective performance. What are the standards and the rules of traffic reflective sheeting? According to the reasons mentioned above, different grades of the engineering traffic reflective film have various criteria. In particular, it is clearly proposed that Class V (wide-angle) reflective film should be used for signs on small-radius curve sections of expressways, small-radius ramps of overpasses, intersections with complex traffic, and large viewing angles (such as restrictions and signs that require drivers to observe horizontally at a wide angle. And roads are dominated by large vehicles with the purpose of improving their wide-angle retroreflective performance and visibility, especially for signs directly related to safety.In addition, according to the test results of the above principle, when the signs are located on the road surface, such as gantry and cantilever, we sincerely adopt the same grade of super-strong road traffic reflective film material as the roadside, which accounts for their retroreflective effect can dramatically reach about 15% of the roadside. In those cases, the retroreflective performance of the sign plate located on the motorway should be one [...]

Why can we see traffic signs at night? I wonder if you have noticed an interesting phenomenon: you can clearly see traffic signs at night, such as the vests of traffic police, road signs, road markings, anti-collision cylinders, and license plates of vehicles in front of you. These objects obviously do not have the function of self-luminescence, but we can see bright spots in the distance. So, why can we see them? How is such a strong reflection achieved? Reflective materials play an obvious warning role with their bright colors during the day. At night or in low light conditions, their eye-catching reflective effect can effectively enhance people's recognition ability. And they are mainly used for personal safety protection and traffic safety protection. The application fields of reflective materials can be divided into two categories: the planned special market and the civilian market. The planned special market generally refers to the field where reflective materials must be used according to national laws and regulations, mainly known as traffic safety fields, such as traffic signs, license plates, and car body reflective signs. infrastructure warning signs in industries such as communications and electricity; high-visibility warning clothing for firefighting, road administration, police, and safety rescue; the civilian market generally refers to various types of clothing, shoes, hats, bags, billboards, and other fields. Retroreflection coefficient performance index： There are many index factors to measure the performance of retroreflective materials, the most important of which is the retroreflective ability of the material, which determines the quality grade of the reflective material and is directly related to traffic safety and personal safety. Retroreflection coefficient definition: It is used to describe the amount of light that is reflected back to the light source after it hits the surface of an object, that is to say, the ratio of the reflected light to the irradiated light, and the unit is: candela/per lux square meter (cd/(lx·m²)) What are the technical index requirements? GB/T 18833-2012 "Reflective Film for Road Traffic Signs" divides various retroreflective materials into 7 types as the design basis for various highway traffic signs. Each type of reflective film has a corresponding retroreflective coefficient, and the retroreflective coefficient also distinguishes colors. Different colors have various requirements, and their retroreflective coefficients are also different. However, the larger the retroreflective coefficient, the better the retroreflective performance of the reflective film or reflective cloth. But it cannot be too high, otherwise it may cause light seepage and visual glare of the font. In a sense, the application of retroreflective materials is a more proactive safety precaution, which is more valuable than measures such as guardrail protection aimed at reducing the degree of injury after an accident. Reflective materials provide reliable protection at a low cost in transportation. We look forward to its further development to provide more beautiful and diversified solutions for road safety.

Why do highway corrugated guardrails use reflective film? An introduction to the reflective film’s principle of the highway corrugated guardrail: The reflective sheeting, used for highway guardrail, is a material that can be directly applied in other fields, which can also reflect the light of cars. In those cases, the driver can see the barriers in the road and then take immediate action. Since various reflective sheetings have different components and designs, they have various influences. For instance,both the embedded lens type and the sealed lens type use glass beads as the reflection technology principle, while the reflection principle of the prismatic reflective film is the refraction and reflection of the micro-prism. Information concerning the classification of the reflective film for the highway corrugated guardrail: The backing of the reflective film is divided into pressure-sensitive type and heat-sensitive type, and the bottom plate is an aluminum plate. Both temperatures for working must be over 18 degrees centigrades. What’s more, they serve a life normally is 3 to 7 years, and their positive impact brightness (0.2o/-4o) is generally around 100cd/lx/m. After 7 years, the brightness drops to 50% of the initial brightness value. The reflective film influences coefficient of lens-sealed reflective film is at least twice that of lens-embedded reflective film. The vacuum support structure inside it also solves the problem of condensation on traffic safety signs caused by changes, like temperature and environment, which improves the material’s ability to reflect to some extent. The reflective film of large-angle microprisms will not have much attenuation at large incident angles and observation angles. Therefore, our economical highway guardrail reflective film is mostly used in places with multiple lanes and curves where traffic safety signs are required. The application of reflective film in traffic signs: Different types of highways will utilize different levels of reflective sheeting to make signs, which are usually designed for roads with faster speeds (such as expressways, first-class highways, etc.) to provide reflective films with a high reflectivity coefficient and reflection brightness. Nowadays, some cities ' roads in many economically developed areas also require taking advantage of super reflective sheeting to make traffic signs,which, on the one hand, can enhance safety, and on the other hand, can make these roads become beautiful. Generally speaking,slow-speed roads (such as provincial roads and national roads) are designed to use high-grade reflective film; some temporary signs usually use low-grade reflective film. Why do people stick the reflective stickers on highway guardrails? We always see the colorful reflective sticker in the traffic facilities, particularly on the road corrugated guardrail, which is very common. The original purpose of it is to enhance the visibility and reduce the accidents on the roads because the drivers can’t see the objects clearly; in other words, more accidents are occurring. With the purpose of solving these problems, people will stick the reflective stickers on the highway guardrail according to the designed distance. Some studies show that this act can enhance the effect of reflection, and the drivers will [...]

Analysis on the competition pattern and market size of  prismatic reflective film market Why do micro prisms have advantages? Prismatic reflective film is a reflective film made using micro prismatic technology. Unlike microbeads reflective film, which uses glass microbeads as retroreflective units, prismatic reflective sheeting uses fine-sized polyhedral prism structures as retroreflective units. Its reflection principle is to use the refraction and retroreflection of the microprism structure to achieve retroreflection. Prismatic reflective film is produced with a microprism structure as the reflective unit has good performance in visible distance, observable angle, reflective intensity, and weather resistance. Its manufacturing technology involves multidisciplinary and high-tech fields such as materials science, optics, and precision machinery manufacturing. Prismatic reflective sheeting has been developed since the 1980s. After many updates and iterations, the product performance has been continuously improved. For a long time, domestic prismatic reflective film was completely dependent on imports. The reality has led to an increase in the demand for micro prisms: The increase in highway mileage has led to an increase in the number of highway signs and signs. The annual demand for reflective film for highway signs and signs of all levels mainly includes two types: renewal demand and new demand. At present, the average service life of reflective film for highway signs and signs in my country is about 3-7 years, so there is a considerable and continuous demand for renewal every year. For motor vehicle drivers, traveling at night is a difficult task. There are high risks on the roadside and level intersections along the road. Reflective materials can enable drivers to accurately identify road traffic environment information and risk status at night, improving the safety of night driving. Why do highways need to use micro-prisms? High-grade highways are generally trunk roads connecting political and economic centers or large industrial and mining areas. Since prismatic reflective film has the characteristics of high reflective brightness compared to micro-bead reflective film, it is mainly used in products with special requirements for reflective brightness. According to GB50688-2011 "Urban Road Traffic Facilities Design Specifications", the signs of urban expressways and urban trunk roads should use Class II-IV reflective film, and Class III or above reflective film should be used in curved sections or other dangerous sections. Prismatic reflective sheeting is different from micro-bead reflective film. It is mainly used in the signs and signs of some urban expressways, urban trunk roads and high-grade highways such as highways. According to the relevant national requirements for the setting of highway signs and signs, the average amount of reflective film used on highways is 50 square meters/kilometer, and the average amount of reflective film used on high-grade highways of level 2 (including level 2) and above is 30 square meters/kilometer. The number of high-grade highways in my country in 2020 has increased compared to 2019, and the market demand for prismatic reflective film has increased to a certain extent. How will micro-prisms develop in the future? At present, prismatic reflective films are developing towards [...]

With the rapid development of society and technologies, traffic, costumes and billboards and other fields have a great increasing demand for the prismatic reflective material. However,the Chinese manufacturer doesn’t attain the crucial technologies because of the difficulties to produce and their small size. With the target of bridging the gap of technologies between China and other aboard markets,it is the time to research the structure of prismatic reflective material’s optical function and processing. Let’s focus on the following paragraph about the way to research the prismatic reflective material.

The color and clarity of the reflective film of ordinary signs will fade after long-term exposure to wind and sun, affecting the safety of drivers driving at night. The newly replaced micro-prismatic structure super-strong reflective film meets the requirements of the new national standard and can be used for permanent traffic signs, work area facilities and contour marks. It is waterproof, sun-proof, high-definition and durable, and can better play a role in safety warning and guidance, improve the safety of drivers and passengers on highways at night and in special weather conditions, effectively reduce traffic accidents, and improve driving safety factors.

Anti-reflection film is also called anti-reflection film. Its main function is to reduce or eliminate the reflected light from optical surfaces such as lenses, prisms, and plane mirrors, thereby increasing the light transmittance of these components and reducing or eliminating the stray light of the system.

Reflective film is a kind of retro-reflective raw material that has been made into plastic film and can be directly used. The technology of reflective materials is developing rapidly. The technology of my country's reflective material industry is gradually improving and innovating, which plays a positive role in promoting the technological development of the entire domestic reflective material industry.

Prismatic reflective film is based on the principle of thin lens imaging. Glass beads are evenly embedded in organic resin on one side as an optical original, and then laminated with epoxy resin to form a glass film.