Plastic products as a new type of material, with the characteristic of light, waterproof, durable, mature production technology, the advantages of low cost, widely used in the world and showed a growing trend. Plastic packaging materials in the world market growth rate higher than other packaging materials, from 1990 to 1995, the average annual growth rate of plastic packaging materials is 8.9%.
China is one of the world's top ten production and consumption of plastic products. In 1995, China's plastic production was 5.19 million tons, nearly 6 million tons of plastic into Japan, when the country's total plastic consumption of about 11 million tons, of which the packaging of plastic amounted to 2.11 million tons. Most of the packaging plastic is discarded in the form of waste film, plastic bags and foam utensils in the environment. These waste plastic packaging scattered in the urban areas, scenic tourist areas, water, roads on both sides, not only affect the landscape, resulting in "visual pollution", and do harm to the environment. So plastic recycling such as EPS recycling is very necessary to protect our environment.
According to the survey, 3% of Beijing's municipal solid waste is waste plastic packaging, the total annual amount of about 14 million tons; Shanghai 7% of domestic garbage for waste plastic packaging, the annual total of about 190,000 tons. Tianjin annual waste plastic packaging is also more than 100,000 tons. Beijing each year in the environment of plastic bags about 2.3 billion, disposable plastic tableware about 220 million, waste plastic film about 6.75 million square meters. People are dubbed the "suburbs of a vast expanse of white".