Heavy metal is another big killer of furniture, as powerful as formaldehyde
When the reporter recently visited the furniture and building materials market in Beijing, such as Lanjinglijia and Actual Home, many manufacturers of children's furniture, adult furniture, and office furniture were unable to produce heavy metal content test reports. Although consumers' environmental awareness has improved, when selecting furniture, few people ask about the heavy metal content of furniture.
Wang Jing, a professor-level senior engineer of the China Academy of Building Materials Research, pointed out in an interview that heavy metals are one of the important items that the country requires furniture manufacturers to test. Children's furniture has four new heavy metal testing items, which shows that China's furniture standards Getting stricter. With the technological progress and economic development, it is an inevitable direction to increase the heavy metal limit requirements for adult furniture and office furniture .
Most furniture is not tested for heavy metals
June 10, reporters arrived at the North Third Ring Road of Beijing hundred international home Mall, here's furniture brought together a hundred kinds of products, including children's furniture, office furniture and so on. According to the staff, these children's furniture is only coated with a thin layer of environmental protection paint on the surface. All furniture is environmentally friendly and has undergone quality testing. At the reporter's request, the staff showed the furniture quality inspection report to the reporter. After careful inspection, the reporter found that no matter whether it is children's furniture or other furniture, there are no heavy metal detection items in the test report.
The reporter then came to the Lanjinglijia Dazhongsi store. At the Fleisha Danish Children's Furniture Museum, the staff introduced to the reporter that the brand's products meet the EU furniture standards and are stricter than the domestic furniture standards. Furniture products. Although the staff ’s verbal propaganda is tempting, it cannot produce any domestic authority ’s test report on the heavy metal content of furniture.
In the children's furniture showroom in Colombini, the staff said that the brand is one of the largest furniture groups in Italy. All the children's furniture produced meets the EU standards, and uses environmentally friendly water-based paint to ensure environmental protection and health. However, regarding the content of heavy metals in furniture, staff members are also unable to produce relevant test reports. The staff in the children's furniture exhibition hall, such as I Love My Home and Duo Ai, also failed to show the reporter a test report indicating whether the heavy metal in children's furniture exceeds the standard.
In the actual home Lizeqiao store, the reporter randomly surveyed furniture manufacturers such as Romantic Manor and Yifeng Furniture. The staff all said that the furniture in the store meets the national standards, there is no problem of excessive heavy metal standards, but they can not provide corresponding tests. report.
Furniture is not heavy metal allegedly misleading
During the investigation, the reporter found that sales staff often boasted: "Our furniture uses environmentally friendly paint or water-based paint, does not contain heavy metals, there is no need to test."
The color page provided by the staff of the Fleisha Danish Children's Furniture Museum to reporters said: "The surface of this product adopts the world's most advanced plant spray painting process, without adding thinners, and fundamentally eliminates harmful metals and other harmful chemical materials. Even children If you bite the furniture, it will not cause any harm to the body. †In the children ’s furniture showroom in Colombini, the staff said:“ The brand ’s children ’s furniture has a total of 13 colors, and consumers can customize it according to their needs. Although children ’s furniture has more colors , But it will not contain heavy metals such as lead and mercury. Because the brand ’s furniture is paint-free, the resin is pressed onto the surface of the furniture board at 800 ℃. This process will not contain heavy metals.
A number of manufacturers' sales staff told reporters that the furniture uses water-based paint, which is diluted with water and does not use thinner, so it will not contain heavy metals. Other manufacturers claim that wooden stickers are used on the surface of furniture, so they will not contain heavy metals.
Wang Jing said that the manufacturer claimed that the furniture does not contain heavy metals, which is suspected of misleading consumers. From an objective point of view, water-based paints may also contain heavy metals. These heavy metals may come from the fillers used in the production of water-based paints-mineral powders. Common ones include talc powder and titanium dioxide. If these mineral powders have problems, they will Bring heavy metals into water-based paint. According to the relevant national standards, no matter which processing technology the manufacturer uses, furniture products should be tested for heavy metal content.
It is understood that, according to the "Limits of Harmful Substances in Interior Decoration Materials Wood Furniture", four heavy metals of cadmium, chromium, lead, and mercury must be within the limits, that is, lead ≤ 90 mg / kg, cadmium ≤ 75 mg / kg Chromium ≤ 60 mg / kg, mercury ≤ 60 mg / kg. On the basis of "General Technical Conditions for Children's Furniture", four types of heavy metals have been added , namely: antimony ≤ 60 mg / kg, arsenic ≤ 25 mg / kg, barium ≤ 1000 mg / kg, selenium ≤ 500 mg / kg.
The update speed of the national standard needs to be accelerated
At Lanjingli ’s Dazhongsi store, the reporter noticed that parents ’environmental awareness has generally improved. Most parents will ask how much formaldehyde is released when selecting furniture for their children. However, few parents will ask Whether the heavy metal content exceeds the standard. And in order to meet the needs of their children, most parents often choose colorful furniture.
Children's furniture is usually more colorful and brighter. It is worth noting that whether the furniture paint is oily or water-based, brightly colored paint generally contains more heavy metals than ordinary paint. Some children's household items, such as colorful textiles and plastic products, contain heavy metals.
The soluble heavy metals in wooden furniture products mainly come from the color paint coating film on the product surface, especially the color paint content is more. In addition, inorganic pigments are usually extracted from natural minerals and made through a series of chemical and physical reactions, which inevitably contain traces of heavy metals. The reason why the "General Technical Conditions for Children's Furniture" has increased the requirements for the four heavy metals of antimony, selenium, arsenic, and barium is because children often lick their mouths and pull the items with their hands, which is very harmful. The substance is carried into the body.
The update speed of China's national standard is slow, and the update speed of some indicators lags far behind international standards. Although the overall technical development level of building decoration materials in China is constantly improving, there is still a lot of research work to be done, especially in terms of environmental protection and health, there is still much room for improvement.
â— Reporter's Notes
Heavy metal detection of furniture can not be taken lightly
Compared with formaldehyde, whether it is furniture manufacturers or consumers, the content of heavy metals in furniture obviously lacks sufficient attention.
Many businesses are unable to produce furniture heavy metal test reports. Although some manufacturers have test reports, most test reports only involve formaldehyde, and it is rare to test heavy metals. This phenomenon should arouse people's attention, and the detection of heavy metals in furniture should not be taken lightly.
The hazard of formaldehyde has been well known for nearly 10 years. As more and more commercial houses enter the market, the home decoration and decoration industries are becoming more and more popular, and various pollutants are also disrupting people's lives. A form of gas that poses a direct health hazard, formaldehyde, has become the subject of criticism, and the harmfulness of formaldehyde has also been deeply recognized by the public.
In fact, heavy metal pollution and formaldehyde enter the people's families at the same time, and the harm should not be underestimated.
Wang Jing, a professor-level senior engineer of the China Academy of Building Materials Science, introduced that furniture surface coatings can bring heavy metals into the body under human contact friction or suitable solvents, that is, heavy metals can migrate into them through appropriate media. human body. Soluble heavy metals are extremely harmful to the human body. For example, lead can damage the human nerves, hematopoietic and reproductive systems, especially for children and adolescents. It may affect children ’s growth and intellectual development ; long-term inhalation of cadmium can damage kidney and lung functions ; Long-term exposure to chromium compounds can easily cause dermatitis and eczema ; chronic mercury poisoning mainly causes central nervous system diseases ; antimony and arsenic have radioactive damage to the skin, which can cause skin pigmentation and lead to abnormal keratinization ; people with selenium overdose may suffer from staggering ; Barium can cause a burning sensation when it comes into contact with the skin or eyes.
However, because the hazards of heavy metals are more concealed, the public is often vigilant about the loss. These heavy metals are invisible and untouchable, and the harm to the human body is not as easily noticeable as formaldehyde. Therefore, people are far less cautious about the prevention of heavy metals than they are to formaldehyde. In fact, the hazards of heavy metals are not inferior to formaldehyde. They are widely used in household products, including furniture, ceramics, colored textiles, plastic products, toys, stationery, etc. From this point of view, monitoring of heavy metal content is not possible careless.
Heavy metals in household items are especially harmful to children's health. The number of children aged 0 to 14 in China has exceeded 200 million, accounting for about 1/7 of the total population. About 40% of households in Chinese cities have children ’s rooms, and there is a trend of increasing year by year. The environmental protection and health of household and daily necessities are directly related to a large number of children's consumer groups. Therefore, the relevant law enforcement part of the country should strengthen the detection of heavy metals in household and daily necessities.
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