Silk screen light guides do not meet EU environmental standards

The laser engraved light guide plate of Shenzhen Yingxing Technology Co., Ltd. participated in the 8th China LED International Exhibition. The product was highly praised by experts and enterprises at the exhibition. Through the exchange, LED products using silk screen light guide plate were obtained. It is not in line with the EU's environmental access standards, because the ink used in the silk screen production process will cause certain harm to the human body.

According to relevant reports, ink is the largest source of pollution in the printing industry. The global emissions of organic volatiles (VOC) caused by inks have reached several hundred thousand tons per year. These organic volatiles can form a more serious greenhouse effect than carbon dioxide. And under the irradiation of sunlight, oxides and photochemical smog will form, which will seriously pollute the atmosphere and affect people's health.

This is the harm of the ink for silk screen light guide plate to the human environment. It contains certain heavy metals such as lead, chromium, copper and mercury. It has certain toxicity in the EU environmental protection access standards. ROHS contains the following six kinds. Hazardous substances, lead Pb, cadmium Cd, mercury Hg, hexavalent chromium Cr6+, polybrominated diphenyl ether PBDE, polybrominated biphenyl PBB, this product covers a wide range of products, covering almost all electronics, electrical appliances, medical, communications, toys, Products such as security information, which not only include the whole machine product, but also the parts, raw materials and packaging parts used in the production of the whole machine, which are related to the entire production chain.

Obviously, the heavy metal elements in the ink used in the silk screen light guide plate are in conflict with the EU environmental protection standard RROHS, and the high attention paid to the ROHS's command paint is even called the green environmental protection directive. It is a technical barrier directive. For the promulgation of this directive, domestic LED export companies attach great importance to related issues and look for relevant ways to solve problems.

At present, many LED products on the market almost use silk screen light guide plates, mainly because of their low price, low cost of products, and high profits. However, in the face of EU environmental standards, it may directly overturn the application of silk screen light guides.

In the light guide industry, there has been a gradual physical production of light guides that do not involve any chemical changes or harmful elemental materials. According to the author's observation, there are mainly Shenzhen Yingxing Technology laser scribing, laser dot, etc. This type of light guide can easily cross the established technical barriers, in line with the product entry barrier, and also has a certain environmental protection and sustainable development. Contribution.

Of course, in the face of the EU, this is only an analysis of the process of chemical forming and physical forming from the perspective of environmental protection. In exporting enterprises, it is also necessary to understand the technical access requirements of overseas markets, and the market technology access directives of the European Union, Japan, and the United States. Different, the major LED exporters can get a detailed understanding. This will enable the company to complete export trade transactions more smoothly.