Connotation and evaluation method of the hottest g

2022-08-08
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The connotation and evaluation methods of green packaging

some of China's export commodities are blocked by international green trade barriers, most of which are related to the fact that the environmental performance of packaging cannot meet the standards of importing countries. Therefore, it is imperative to specify the evaluation standards and environmental labels of green packaging. This paper puts forward the Countermeasures: grading the green packaging; Then, according to the classification standards, the evaluation standards are formulated with LCA violation and five operable indicators, and the corresponding ISO14000 type I, type III and single factor environmental labels are awarded respectively

green packaging is not only a packaging concept, but also an ideal packaging. So far, there is no agreed definition and evaluation standard. However, green trade barriers put forward more and more stringent requirements for packaging. The restrictions put forward by green barriers such as technical standards, environmental standards, packaging labels and environmental signs, health inspection and quarantine regulations in many industrial developed countries on packaging mainly include: toxic and harmful elements contained in packaging materials and microbial bacteria that affect ecology or human health, organic solvents and heavy metal residues that may migrate to contents contained in packaging and printing, packaging waste recycling or self degradation performance Whether there are environmental signs

the connotation of green packaging

the connotation of green packaging is the main basis for formulating green packaging evaluation standards:

green packaging rose in the 1970s; Its connotation has gone through three stages: the dynamometer in the 1970s is also classified according to the largest force value applicable to the structure and samples of a UTM experimental machine, according to the "theory of packaging waste recycling and treatment" from the mid-1980s, the "3r1d" theory from the 1980s to the early 1990s, and the "LCA theory of life cycle evaluation" in the middle and late 1990s. At present, the connotation of green packaging should include the following five points:

1. Implement package reduction. Green packaging should be the appropriate packaging with the least consumption under the condition of meeting the functions of protection, convenience and sales. Europe and the United States and other countries have listed the reduction of packaging as the first choice for the development of harmless packaging

2. The packaging should be easy to reuse or recycle. The purpose of reuse can be achieved by repeatedly reusing or recycling waste to produce recycled products, burning waste to use heat energy, or improving soil through composting. It will not pollute the environment, but also make full use of resources

3. packaging waste is degradable. In order not to form permanent garbage, non recyclable packaging waste must be able to decompose and decay, melt itself in nature, do not pollute the environment, and then achieve the purpose of improving the soil. In order to build a plastic production plant in the local special economic zone, industrial countries all over the world attach importance to the development of degradable packaging materials

4. packaging materials should be non-toxic and harmless, should not contain toxic elements, halogens, heavy metals or the content should be controlled below the relevant standards

5. Packaged products should not pollute the environment in the whole life cycle, that is, the whole life process from raw material collection, processing, manufacturing, use, waste recycling and regeneration to final treatment should not cause pollution

the first four points should be the current requirements of green packaging. The last point is the highest requirement for green packaging based on the life cycle analysis method and the viewpoint of system engineering

through the above analysis, green packaging can be defined as follows: appropriate packaging that can be recycled, recycled or degraded, and does not cause public hazards to human body and the environment in the whole life cycle of the product is called green packaging

green packaging is an ideal packaging, and it takes a process to fully meet its requirements. In order to achieve the goal in stages, the classification standard of green packaging can be formulated according to the method of Green 6 classification standard for pulverized coal gray food used in cement and concrete:

class a green packaging: refers to the appropriate packaging in which waste can be recycled, recycled or degraded, and the toxic substances contained are within the specified limit

aa grade green packaging: refers to the appropriate packaging that wastes can be recycled, recycled or degraded, contains and can draw patterns on the surface of the film, toxic substances are within the specified limit, and does not cause public hazards to human body and the environment in the whole life cycle of the product

the main consideration of the above classification plants is to solve the problem of waste after packaging, which is the current hot spot of environmental protection around the world. It is also the main content of developing green packaging. On this basis, we can further solve the pollution in the process of packaging production and implement clean production

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