manufacturing cost
safety margin
Aesthetic demand
Small and micro household scooters are mostly white cars or light-colored cars. The core factors are cost and safety factor, but the most important factor is the influence of manufacturing cost. As we all know, the moisture of automobile paint includes metallic paint and non-metallic paint, among which white paint water is mostly non-metallic paint, and a few mica sheets are used as materials to brighten and improve the hardness of paint surface. The manufacturing cost of mainstream non-metallic white paint water is very low, and the spraying process (technical difficulty) is also lower; For the same car metallic paint and white paint, the cost difference is about1k.
The domestic automobile market has an average annual production and sales volume of more than 20 million vehicles. Imagine if most of these cars are white cars, is the annual cost saved by major car companies through spraying "astronomical figures"? For car companies whose cost control is accurate to every screw, the only advantage of white car is to reduce costs; In order to make consumers accept white cars, we need to find some reasons, such as: white cars are safer, white cars are swollen and appear bigger, and so on. But for cars with comprehensive lighting signals, low commuting frequency and strong vehicle mobility, these are excuses.
The special color of the truck
Light truck-red and blue
Heavy truck-red
Commercial concrete truck-white
Rescue vehicle-yellow
Why do trucks of different sizes, grades or uses always have inherent colors? For operating trucks, it is no longer simply to control costs, because only trucks use plain paint water. The reason for distinguishing colors is due to safety considerations and vehicle use requirements. Before analyzing this problem, we need an "art class" first.
The approximate range of visible wavelengths of light.
Red 770~622 nm
Yellow 597~577 nm
Orange 622~597 nm
Green 577~492 nm
Blue 492~455 nm
Sunlight consists of five colors: red, orange, yellow, green, blue, blue and purple. Different colors have different wavelengths and deflection angles. When light shines on objects of different colors, the absorption and reflection abilities of these objects will naturally be different. This difference is the reason for distinguishing the colors of trucks of different sizes and grades.
Light truck: The color is mainly red or blue (once), the reason is nothing more than that red has the longest wavelength and the smallest deflection angle, and it will be more easily recognized in weather with low visibility such as rain, snow and fog. Yellow is the special color for engineering rescue vehicles. Although orange is eye-catching, it is too close to yellow to use. Green represents vitality in traditional culture, but for male-dominated truck drivers, no one likes a piece of green on the front of the car-this is a very important factor, so apart from red, only blue is available. However, in recent years, light trucks are mostly white, because blue is easy to make vehicles quickly old, and red is mostly dark red, but the visual effect is not as good as white; White is the strongest in anger, so the light truck will gradually "turn white" after the plot of "red equals Geely" fades.
Heavy truck: red is still the main color, supplemented by white. The reason is that heavy trucks actually pay more attention to some "plots" than light truck drivers, and positive red has some "placebo" effects on the mentality. Secondly, the running road conditions of heavy trucks are much more complicated than those of light trucks, and the mileage (regional span) is also very large, so it is inevitable to encounter various traffic meteorological conditions during the trip. Therefore, in order to play an absolutely eye-catching role in this environment, red is still the first choice for heavy trucks at present. The effect of white heavy truck is also good, but it is not the mainstream color in the domestic transportation market. In addition to the above reasons, red has another function-it can make people excited to a certain extent, which can improve driving concentration to a certain extent compared with the stimulation of other colors on the visual nerve; For fire engines that only use red, red can improve work efficiency.
Commercial concrete truck (cement tanker): white is the standard color. This kind of car doesn't use colors such as red and blue, not because white has strong reflective ability, or it doesn't need to improve its recognition in poor visibility road conditions. The reason is that the heat absorption capacity of white cars is the worst, while the tank of commercial concrete cars is concrete, so high temperature will have a catalytic effect on concrete; Dark tank must have stronger heat absorption ability, but strong white light reflection ability is equivalent to reflecting more infrared rays, and controllable tank temperature is the most necessary characteristic of commercial concrete vehicles. Secondly, white cars are the easiest to identify in normal weather. Most of these "Big Macs" fly in ideal weather, so it is also important to improve the recognition.
Rescue vehicle: yellow. The isolation rescue vehicle will use this color, because yellow is actually more eye-catching than red. Statistics show that painting fire engines yellow can reduce the accident rate of fire engines by more than 50%. Therefore, there has been a proposal to turn fire engines from red to yellow overseas. However, because the stimulation of yellow on the visual nerve is not conducive to people's emotional stability, and fire rescue vehicles need stability, so the global fire engines are still red. Yellow can only be used on all kinds of emergency rescue vehicles, as the distinguishing color of fire engines and the need to create some unstable emotions on the road-in order to remind other vehicles of the inevitable purpose, the rescue vehicle is determined to be yellow.
Summary: Different models are suitable for different colors for three reasons: safety requirements, manufacturing cost control and cultural aesthetic requirements. In addition to the white bus, it is scientific to maintain a fixed color in the operation of the van, and it is not easy to change the paint.