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How to Reduce Pollution without Reducing the Demand for Plastic Packaging Material
2019-05-24
News
As one of the main food packaging materials, plastic packaging materials play an increasingly important role in e
As one of the main food packaging materials, plastic packaging materials play an increasingly important role in ensuring food safety. However, with the extensive use of plastic packaging and the difficulty of degradation of such materials, how to reduce pollution and dispose of waste plastics has become a problem to be solved in the industry.
 
How to Reduce Pollution without Reducing the Demand for Plastic Packaging Material
 
At present, in the total consumption of food packaging, the amount of plastic packaging exceeds the sum of paper, metal, glass and other traditional packaging materials, accounting for more than 50%. Therefore, any plastic packaging that meets the standard can be used safely. Food plastic bags should be packed with the words "food for use" and the QS sign. Only when the plastic bags used are not passed, will there be many potential safety hazards. Some false rumors in society should be analyzed and judged with a scientific attitude.
 
However, while plastic packaging protects food from external pollution, it is also possible to introduce some pollution sources. Wang Zhutian, National Food Safety Risk Assessment Center, stressed that the standards and regulations for plastic food packaging are a firewall for the safety of plastic food packaging. In these laws and regulations, there are strict regulations on the varieties and dosages of raw materials such as resins and additives used in food packaging. The safety of plastic food packaging can be guaranteed as long as it is processed and produced in strict accordance with relevant standards.
 
With the development of plastics industry and the progress of processing technology, the application of plastic packaging is expanding day by day, and the variety of plastic additives is increasing day by day. At present, it has become a fine chemical industry with a wide range of products. After adding plastic additives, not only the processing is convenient, but also the product performance is improved, the cost can be reduced, energy can be saved, but also the productivity can be improved, and the commodity value of the product can be enhanced.
 
However, due to the extensive use of plastic packaging materials in food, while ensuring food safety, plastic food packaging is also facing problems of environmental pollution, so how to dispose of waste plastics has become one of the bottlenecks restricting the healthy development of plastic packaging industry. In recent years, with the continuous progress of comprehensive utilization technology of waste plastics, new materials have been widely used in the market through plastic processing. At present, the application of recycled plastics is very common, involving packaging, automobile, clothing and other industries.
 
In addition, the relevant state departments are formulating new regulations to include waste lunch boxes and plastic bags in the compulsory recycling catalogue. The implementation of these measures will play an important role in reducing environmental pollution of waste plastic food packaging and promoting low carbon, recycling and sustainable development of industry.
 
At the same time, through technological innovation, it is also a good choice to develop new packaging materials.
 
In addition, many enterprises began to reduce the weight of plastic bottles to reduce the proportion of pollution. Coca-Cola, for example, introduced "ice-dew" drinks, which weighed just over 9 grams, 35% less than the original bottle. Moreover, its bottle wall thickness is only 0.1 mm, which can save more than 70% of the recycling space. However, the narrow opening design of the bottle cap, petal pattern of the bottom of the bottle to achieve thin bottom compression, etc., put forward higher requirements for mechanical equipment such as capping and punching in the production process.
 
For this reason, the author believes that with the continuous green and environmental protection of packaging industry, the plastic market has been shrinking. In order to achieve better development in the future, plastic packaging must be improved in a variety of ways to increase green and environmental protection can promote its own development. First of all, innovate and develop new plastics materials and new processing technology. Secondly, improve and improve the plastic recycling processing technology. Thirdly, the development of intelligent packaging technology and other advanced means. In addition, the development of bio-based plastics can effectively control the degradation time and cycle of bio-plastics. After that, the progress and development of plastic blending technology, new products of plastic additives and application technology were promoted. On the premise of guaranteeing non-toxicity, sanitation and environmental protection of plastic packaging materials, low-cost technology was used to improve the performance of plastic packaging materials, which made it possible to reduce quantities.
 
(Reference: Global Plastic Network, China Plastic Machinery Network, China Plastic Online, Consumer Daily, Anyang Evening News, Red Net Synthesis)
 
Original Title: How to Reduce Pollution without Reducing the Demand for Plastic Packaging Material
 
(Source: Food Equipment Machinery Network)