With the improvement of people's quality of life, there are more and more family cars. The first thing people do when they buy a car is to stick car film. However, many people who love cars stick car film into these three misunderstandings

1、汽车隔热膜颜色越深隔热越好

1. The darker the color of the car insulation film, the better the heat insulation

许多选购汽车膜的车主，对汽车膜选购标准总少不了这样一个“误会”，汽车膜颜色越深隔热效果越好。汽车膜隔热能够达到隔热作用，主要通过两种途径：反射和吸收能量。

Many car owners who choose auto film always have such a misunderstanding about the standard of choosing auto film. The darker the color of auto film, the better the heat insulation effect. There are two ways to achieve heat insulation effect: Reflection and absorption of energy.

一：吸收红外线。它是通过在膜中添加吸热胶或者其他吸热材质，来达到吸收红外线进而达到隔热的效果。此种隔热膜的隔热效果非常好，但是在使用的过程中，由于是吸收热量的，膜本身的温度会比较高，会造成二次辐射，同时也会影响膜本身的使用寿命。

1： Absorb infrared rays. It is through adding heat absorbing glue or other heat absorbing materials in the film to achieve infrared absorption and then achieve the effect of heat insulation. The heat insulation effect of this kind of heat insulation film is very good, but in the process of use, because it absorbs heat, the temperature of the film itself will be relatively high, which will cause secondary radiation, and also affect the service life of the film itself.

二：反射红外线。这种隔热膜通过在膜的内部添加一层或者多层金属材质，将红外线反射出去，进而达到隔热的目的。

2： Reflect infrared. By adding one or more layers of metal material to the inner part of the film, the infrared ray is reflected out, so as to achieve the purpose of heat insulation.

一些劣质膜就是抓住了车主们对汽车膜的这个“误会”，通常都将膜颜色加得很深，来掩盖其较差的隔热效果，但实际上并不具备隔热效果，反而因为劣质膜的添加物有害健康。所以，当我们在选择汽车膜时，千万不要以膜的颜色深浅来判断其隔热效果。

Some inferior films catch the car owners' misunderstanding of automobile films. They usually add deep color to cover up their poor heat insulation effect, but in fact they do not have heat insulation effect. On the contrary, the additives of inferior films are harmful to health. Therefore, when we choose the automobile film, we must not judge its heat insulation effect by the color of the film.

其实，一些高品质的汽车膜由高分子复合材料制成，隔热率同颜色的深浅是没有直接关系的。好的汽车膜的透光率和隔热率参数都很高，看起来颜色很浅，但隔热效果却很好。

In fact, some high-quality automotive films are made of polymer composites, and the heat insulation rate has no direct relationship with the color. Good automotive film has high transmittance and heat insulation parameters, looks very light color, but the heat insulation effect is very good.

2、汽车隔热膜颜色越浅采光越好

2. The lighter the color of car insulation film, the better the lighting

很多人潜意识里都觉得汽车隔热膜颜色越浅清晰度越高，其实不然。颜色浅的汽车隔热膜透光率高，But！透光率高≠清晰度高！

Many people subconsciously think that the lighter the color of car insulation film, the higher the definition. In fact, it is not. Light color car insulation film has high transmittance, but! High transmittance ≠ high definition!

影响汽车隔热膜的清晰度是由制造膜的基材和工艺决定的。有的汽车隔热膜虽然透光率很高，但隔热层为热蒸发镀铝层，会产生大量的散射光线。有的汽车隔热膜为了隔热，除隔热层之外还会加入了吸热剂或染色层不均匀，会使膜的光线发生折射或漫反射，进而影响膜的清晰度，影响驾车。

The clarity of automobile heat insulation film is determined by the substrate and process. Although the transmittance of some automobile heat insulation film is very high, the heat insulation layer is thermal evaporation aluminum coating, which will produce a lot of scattered light. Some car insulation film in order to heat insulation, in addition to the insulation layer will also add heat absorbent or uneven dyeing layer, will make the film light refraction or diffuse reflection, and then affect the clarity of the film, affect the driving safety.

3、汽车自带隐私玻璃不需要贴膜

3. The car comes with privacy glass without film

有的车主会说：原厂给我配隐私玻璃了，深色的玻璃就可以隔热，我不贴膜了。但是，永南汽配城想告诉大家，这只是视觉上给人隔热的感觉而已。隐私玻璃主要是在玻璃生产过程中加入的颜料，起到阻隔可见光保护隐私的作用。单靠阻隔可见光来隔热的作用微乎其微，因为，红外线才是热量的主要来源，所以要防晒隔热，即使有隐私玻璃也需要贴膜的。

Some car owners will say: the original factory equipped me with privacy glass, dark glass can heat insulation, I do not film. However, Yongnan Auto Parts City would like to tell you that this is just a sense of visual insulation. Privacy glass is mainly pigment added in the glass production process, which can block visible light and protect privacy. The effect of heat insulation by blocking visible light alone is negligible, because infrared is the main source of heat, so to prevent sun and heat, even if there is privacy, glass also needs film.

另外，汽车隔热膜除了隔绝热量之外，还有很大一个作用就是阻隔紫外线对我们皮肤造成的伤害。隐私玻璃不具备阻隔紫外线的功能，因此也是汽车隔热膜有必要贴的原因

In addition, apart from heat insulation, car insulation film also has a great role in blocking the damage of ultraviolet rays to our skin. Privacy glass does not have the function of blocking ultraviolet rays, so it is necessary to stick the car insulation film