In addition to water-based paint, what other methods can reduce pollutant emissions?

Recently, the Beijing Municipal Environmental Protection Bureau held a press conference to announce that according to the "Beijing 2013-2017 Clean Air Action Plan Key Task Decomposition 2014 Work Measures" requirements, more than 100 air pollution prevention and environmental protection technology transformation projects will be implemented, among which key technologies There are furniture manufacturing companies in the field of reform, and the content of the technical transformation project is “reducing volatile organic emissions by replacing oil paints with water-based paints”.

Water-based paint modification is not easy

Regarding the specific plan for technological transformation, Zheng Zaihong, deputy director of the Beijing Municipal Environmental Pollution Prevention and Control Department, revealed that the Beijing Municipal Environmental Protection Bureau has already begun to develop pollution emission reduction standards for furniture and other industries, and is expected to be introduced this year. The standards will be formulated with reference to the highest standards in all regions of the world, or become "the strictest in the world."

In addition, after the introduction of the refinement standard, the environmental protection department will assess all furniture enterprises according to the standards, and the unqualified enterprises will be forced to clear out Beijing at that time. In addition, this standard will be written into the environmental protection law, and will be promoted to the Beijing-Tianjin-Hebei, Yangtze River Delta and Pearl River Delta regions with Beijing as the first echelon.

However, the reporter learned that because water-based paints need to face a series of technical reforms in place of oil paints, involving related machine procurement and practical applications, water-based paints are not as simple as oil paints. At present, Qumei, which has completed the renovation of water-based paint, has been using the water-based paint for the whole line of products for nearly two years. At the same time, there are data showing that only 15% of enterprises in Beijing currently use water-based paint. If the whole application of water-based paint is completed before the end of the year, it is a super-large or incomplete task.

Paint-free, powder coating is also a good choice

So, in the face of such a problem, is there any other way to reduce pollutant emissions in the production chain?

The reporter conducted a series of interviews on this matter, which will be a good choice by producing veneer or paint-free products and using powder coating technology.

Method 1: Production of veneer or paint-free products

Paint-free furniture is paint-free furniture. For example, some plates in the market are self-texturing, and there is no need for post-coating processing. There are also decorative paper or PVC plastic decorative film printed with wood grain, which is glued to the surface of the board. It is also possible to dispense with painting.

Although this type of furniture was previously simple to manufacture, it is not easy to be used by manufacturers due to poor wear resistance and flame retardancy, as well as aging, cracking, and high cost. However, under the environmental pressure of facing atmospheric pollution, the research and application of certain processes is a good choice. It is reported that the TATA Beijing factory has been transformed into a paint-free product.

Method 2: Using powder coating technology

In addition to the application of veneer and paint-free products, the “furniture powder coating solution” currently on the market is also one of the alternative production methods. It is reported that this is an environmentally friendly solution with no odor, no volatility and no sewage. This method can not only solve the environmental assessment and fire assessment problems faced by paint coating, but also can be painted once to avoid the construction of water-based paint drying. The problem of long time can save manpower, reduce costs and improve efficiency.

The reporter was informed that China's research and application of powder coating started in the late 1960s. After entering the 1990s, with the rapid entry of household electrical appliances into the households, the powder coating industry has also gained wider application in China. In addition to water-based paint, what other methods can reduce pollutant emissions?

Be wary of "pseudo" water-based paint

In addition, it should be reminded that some experts pointed out that not all water-based paints are environmentally friendly, and environmentally-friendly water-based paints also exist. According to an insider of a water-based paint brand in China, the current manufacturers of water-based wood lacquers in the domestic market are mixed. If water-based paint is applied, strict manufacturer certification is essential.

Experts said that the water-soluble wood lacquer, which is similar to water-based performance, is also called "pseudo-aqueous paint". It is a solvent-based paint made of emulsified water and a simple emulsified solvent-based paint. Some added curing agents or chemicals, such as "hardener", "paint film enhancer", "special dilution water", etc., some can also be diluted with water, but the solvent content is high, it is very harmful to the human body, and some even Exceeds the toxicity of oil paints.

Examples of environmentally friendly waterborne coatings:

1. Film-forming material points out the water-based paint of poison: polyethylene formal, interior and exterior wall and floor coating

2. A coating containing a toxic solvent in the film-forming agent

3. VOC over standard waterborne coating

4. Waterborne coatings containing toxic pigments or auxiliaries

The “Penalty Decision” recently reported by the Beijing Municipal Environmental Protection Bureau shows that “no-exhaust gas treatment facilities”, “excessive emission standards”, “improving the use of purification devices”, “to push open the waste paint barrels generated during the painting process” has become the first time. The problem of being punished by the company. At present, for furniture manufacturers in Beijing, regardless of the pollutants discharged from the oil paint, as well as the dust generated in the cutting of raw materials, any link that can cause pollution requires a corresponding treatment mechanism to ensure environmental compliance. With the promotion of water-based paints, the corresponding environmental assessment can not be ignored, because the environmental protection of "water-based paint" is not absolute.

》》》Article link

·Three major problems in the renovation of water-based paints in furniture manufacturing

· Beijing's strictest furniture manufacturing pollutant emissions set the world's most stringent standards

· Qumei announced that the entire line of products using the water-based paint home industry first

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