长期使用激光打标机会对人体有什么不好的影响？What bad effects to Human by long-term using of laser marking machines?

有些人说，激光打标机因为涉及到激光技术这一方面，所以会带来高辐射、强光损害视力、产生有毒气体、灼伤人体皮肤等问题。

那么现在我们就来一一解答，激光打标机是否就像人们口中所说的那么危险。

1. 激光打标机会带来高辐射？

有辐射，但绝对不是高辐射。很多东西都会有辐射产生，甚至是我们自己——人体每天都会产生微量辐射，这是正常现象。而且辐射有分很多种：核辐射、太阳辐射、电磁辐射、电脑。辐射等等都是大家经常提到的，都有对人体造成危害的可能性。

这里可以分列几点数据来让大家了解一下：

（1）人体能够承受的**辐射值：学界目前认为，辐射量达到1000毫西弗，会对人体造成明显伤害。

（2）手机辐射靠SAR值衡量，SAR代表生物体(包括人体)每单位公斤容许吸收的辐射量，这个SAR值代表辐射对人体的影响，是最直接的测试值，以人体的敏感部位——脑部为例，其SAR标准值必须低于1.67瓦特。

（3） 有关资料显示，目前在市场上使用的CDM A手机最高的SAR值有一权款是1.55W／KG，而GSM手机最高SAR值的一款是1.49W／KG，最低SAR值的一款CDM A手机是1.07W／KG，而最低一款GSM手机是0.22W／KG。

（4）以某款20W的光纤激光打标机为例，它在运行状态时的辐射量为0.00029W/cm^2，而1998年制定的微波辐射标准为0.00045W/cm^2，可以说在使用激光打标机过程中产生辐射量比使用手机和家用微波炉的要小得多。

我们平时接触的智能设备如手机、电脑、电视等，都有它们各自的辐射。在利用激光打标机打标的过程中，的确会产生微量辐射，但这种辐射量甚至低于你在室外晒太阳所接收到的辐射。

Some people say that the laser marking machine will bring problems such as high radiation, strong light eyesight damages, toxic gas, and human skin burns because it involves laser technology.

So now let's answer them one by one, whether the laser marking machine is as dangerous as people say.

1. Laser marking machines bring high radiation?

There is radiation, but definitely not high radiation. Many things emit radiation, even ourselves - the human body emits tiny amounts of radiation every day, which is normal. And there are many types of radiation: nuclear radiation, solar radiation, electromagnetic radiation, computer radiation, etc.

they are often mentioned by everyone, and they all have the possibility of causing harm to the human body.

Here are a few points for you to understand:

(1) The maximum radiation value that the human body can withstand: the academic community currently believes that the radiation reaches 1000 millisieverts   will cause obvious damage to the human body.

(2) Mobile phone radiation is measured by SAR value. SAR represents the allowable amount of radiation absorbed per unit kilogram of organisms (including the

human body). This SAR value represents the impact of radiation on the human body and is the most direct test value. Taking the sensitive parts of the human body— brain, for example, must have a standard SAR value below 1.67 watts.

(3) Relevant data shows that the highest SAR value of CDMA mobile phones currently used in the market is 1.55W/KG, while the highest SAR value of GSM mobile phones is 1.49W/KG, and the lowest SAR value is one. CDMA mobile phone is 1.07W/KG, and the lowest GSM mobile phone is 0.22W/KG.

(4) Taking a 20W fiber laser marking machine as an example, its radiation amount in the working state is 0.00029W/cm^2, while the microwave radiation standard formulated in 1998 is 0.00045W/cm^2, it can be said that the amount of radiation generated during the use of laser marking machines is much smaller than that   of mobile phones and household microwave ovens.

The smart devices we usually used, such as mobile phones, computers, TVs, etc., all have their own radiation. In the process of marking with a laser marking machine, it is true that a small amount of radiation is generated, but this amount of radiation is even lower than the radiation you receive when you are outdoors in the sun.

2. 打标过程中会产生有毒气体？

首先，激光打标机利用激光的热能量对被打标物品进行烧灼或刻蚀，从而形成文字、图案、标记等所需要的一切，仅需通电便能实现生产，在打标过程中因应材质不同有时候会产生微量有毒气体。

如：

（1）塑料：大多数燃烧后会产生酚性气体，聚氯乙烯绝缘燃烧时释放出大量氯化氢气体,烟气中含有大量的一氧化碳、塑料热介气和硫化物等混合性有毒气体。但这是在塑料完全燃烧的情况下，当然，在激光打标时的热量也会导致塑料产生微量有毒气体。

（2）大部分可用于激光打标的金属材质因为其性质稳定、密度高等原因，通常不会产生有毒气体，但铝材质在打标过程中会产生微量粉尘。

因此激光打标**要在通风良好或者是带有专业清洁设备的情况下进行。

2. Will toxic gas be produced during the marking process?

First of all, the laser marking machine uses the thermal energy of the laser to burn or etch the marked items, to form everything needed like text, patterns,   markings, etc., and only needs to be powered on to achieve production, and in the marking process sometimes produce a small amounts of toxic gases due to the material Different.

Such as:

(1) Plastics: Most of them will produce phenolic gas after burning. When the PVC insulation is burned, a large amount of hydrogen chloride gas is released. The flue gas contains a large amount of mixed toxic gases such as carbon monoxide, plastic heat medium gas and sulfide. But this is released when the plastic is completely

burned, and of course, the heat also causes the plastic to produce a small of toxic gases during laser marking.

(2) Most of the metal materials that can be used for laser marking usually do not produce toxic gas due to their stability and high density,   but aluminum materials will generate a small amount of dust during the marking process.

Therefore, laser marking is best carried out in a well-ventilated or professionally cleaned environment.

3. 激光会灼伤人体皮肤？

激光打标头所发射出来的激光会带有一定的高热量，激光打标机采用的激光器属于4类激光器，其输出激光为不可见红外光，所以要注意避免眼睛或者皮肤暴露在直射的激光光束或散射的辐射之中，注意，是直射。所以，只要不是人为故意在危险情况下触发激光打标，而且很少会有人直接把手或者身体其他部位置于激光打标头之下。另外，激光技术应用在人体皮肤也是一种很常见的技术，例如激光去痣、激光纹身等。

4. 激光打标产生的强光损害视力？

是的，尤其是应用于玻璃或水晶制品打标的时候，激光的亮度非常高，长时间直视会造成视力衰退，严重者甚至会伤到水晶体，使得日后视力出现莫名的黑点。所以在操作过程中要么戴好防护器具，要么就尽量避免长时间、直接近距离直视激光。

3. Will the laser burn human skin?

The laser emitted by the laser marking head will have a certain high heat. The laser used in the laser marking machine belongs to class 4 laser, and its output laser is invisible infrared light, so it is necessary to avoid exposing the eyes or skin direct to the laser light beams or scattered radiation, note, it is direct to the laser light. Therefore, as long as the laser marking is not intentionally triggered in a dangerous situation, few people will directly put their hands or other parts of the body under the laser marking head. In addition, the application of laser technology to human skin is also a very common technology, such as laser mole removal, laser tattooing, etc.

4. Does the strong light from laser marking damage eyesight?

Yes, especially when it is used for marking glass or crystal products, the brightness of the laser is very high, long-time directly looking will cause vision loss,   and even severe damage to the crystal, will cause inexplicable black spots in future vision. Therefore, during the operation, either wear protective equipment,

or try to avoid looking directly at the laser at a close distance for a long time.

综上所述，激光打标机的确带有微量的对人体无害的辐射，在长时间近距离直射或直视激光会对眼睛造成不可逆转的影响，但很多都是在极端且发生几率极小的情况下。因此越来越多厂家还是倾向于使用激光打标机进行生产，因为它打标效果清晰**、打标速度快、高效低耗，逐渐成为产品包装标识行业的首选。

In a word, the laser marking machine does have a small amount of radiation that is harmless to the human body. Direct exposure to the laser or looking directly at the laser for a long time will cause irreversible effects on the eyes, but many of them are extreme and the probability is extremely low. Therefore, more and more manufacturers still tend to use laser marking machine for production, because it has clear and permanent marking effect, fast marking speed, high efficiency and low consumption, and has gradually become the first choice in the product packaging and marking industry.