On the development opportunities of the hottest gr

Development opportunities of green packaging (Part 1)

first, the development of packaging industry has brought environmental protection and resource crisis

according to the survey of relevant departments, in 2001, the global packaging materials and containers market expanded to $43.4 billion, with an increase of 12.5%. However, with the rapid development of the packaging industry, it has also become one of the largest polluting and resource wasting industries. According to statistics, packaging waste accounts for about 35% or more of urban waste in the United States. In Japan, the proportion is as high as 45%. Packaging waste in European Community countries also accounts for 30% - 50% of urban waste. China's packaging industry started in the early 1980s. After more than 20 years of development, it has gradually formed a relatively complete system and has a considerable scale. However, the rapid development of this industry has also caused many environmental problems. At present, the annual output of packaging waste in China is about 16million tons. At the same time, it is still growing at a rate of more than 10% every year. As there is no reliable statistical data so far, it is estimated that it accounts for at least 15% of municipal waste. When the detection data and functional requirements are not many and the digital display can meet them, it is more than% and continues to rise. The resulting environmental problems are mainly manifested in the massive consumption of natural resources, the disposal of waste, the increase of waste management pressure and the environmental impact of waste. Jany said that

investigate the reasons for the overflow of packaging waste: first, the structure of China's packaging industry and product structure are not reasonable. Packaging materials and packaging products do not meet the requirements of large-scale production. When developing new products and putting them on the production line. The sorting, recycling and recycling of packaging waste are included in the plan in the pending development opportunities. Whether it is paper-making enterprises, plastic resin production, glass packaging enterprises and packaging products processing enterprises, most of them are small and medium-sized enterprises. There is a big gap with the industrialized production pattern of developing countries, so it is impossible to avoid the sharp increase of packaging waste and the resulting environmental pollution. Second, due to the limitations of China's national conditions and the level of 50million yuan of "special funds for independent innovation" set up by the municipal finance of technology, most packaging raw materials or auxiliary materials conducive to environmental protection are difficult to develop and put into use. For example, water-based inks, which are widely used internationally, restrict the use of new products and technologies such as heavy metals in plastic additives. They cannot be popularized in China. Third, our residents' awareness of environmental protection is indifferent. Under the constraints of the country's laws and regulations that are not matched with foreign packaging laws and regulations, many foreign banned or restricted packaging materials are still widely used in China's packaging industry. The environmental pollution caused by this is obvious to all. All kinds of waste fast food lunch boxes and packaging garbage woven from plastic bags (bottles) thrown along the railway are continuously covered on China's railway transportation, It has seriously polluted the environment in the areas accessible by trains. Therefore, the Chinese government decided to replace plastic lunch boxes with paper lunch boxes on trains in March, 1998

second, the connotation and characteristics of green packaging

green packaging is a moderate 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 generally has four connotations, namely: the most economical materials, the least waste, and saving resources and energy; Easy to recycle and reuse; Waste combustion produces new energy without secondary pollution; The packaging materials shall be at least and self decomposing, which will not pollute the environment. Therefore, the goal of promoting green packaging is to preserve the maximum natural resources, form the minimum amount of waste and minimize environmental pollution. The connotation of green packaging also determines its different characteristics from other packaging:

1. Protecting the ecological environment

in the new century. Green packaging should be considered from the balance of the whole earth's ecological environment. Choose packaging containers (materials) and packaging design that are conducive to the environment. For example, using new polymer synthesis technology, connect biodegradable structural units to the polymer chain, so that this material can be photodegradated or biodegradable and biological photodegradation

2. Save energy and resources

China is rich in resources and poor in resources, that is, the total amount of resources is large but the per capita amount is small. Therefore, we must follow the principle of energy conservation when developing green packaging. The first is to select energy-saving raw materials and technology for processing and packaging materials; The second is to turn it into a new resource and energy to serve mankind again when it is abandoned

3. Low emission of hazardous substances

low emission includes two aspects. First, the waste water, waste gas and waste discharged from the containers of packaging materials during production and processing should be low. Second, the discharge of additives in packaging container materials should be low or zero within the service life cycle. For example, lead and tin in cans. Lead and cadmium in ceramics. Lead and chromium in printing materials, lead, mercury, ethylene in plastics, formaldehyde in coatings and other emissions should meet safety and health standards. Ensure the health of consumers

4. In line with ergonomics

the green packaging in the new century will develop towards the direction of ergonomics, that is, the trend of ergonomic packaging, that is, easy to use, reasonable handling, reliable storage and convenient interpretation. Meet the special psychological and physiological needs of various groups of consumers. Especially the elderly consumers

third, the huge economic and social benefits of developing green packaging

relevant experts pointed out that at present, with the increasing number of packaging waste and the initial maturity of recycling technology, the state proposed to treat fixed waste in the direction of reduction, harmlessness and recycling, it is not only feasible to invest in the recycling of packaging waste, but also promote the development of packaging industry. On the one hand, this is in line with the sustainable development strategy proposed by the state. The strengthening of environmental protection has solved the worries of the development of the packaging industry and opened up new economic growth points for it; On the other hand, marching into the environmental protection industry can develop cheap sources of raw materials for packaging. Reducing the production cost of raw materials has both economic and ecological benefits

according to relevant experts, although there are many kinds of packaging wastes, they can be divided into four categories according to the material of packaging products: paper products, plastic products, glass products and metal products. Most of the packaging wastes are renewable resources. According to the current recycling level, 140000 tons of cartons can be recycled in a year, which can save 80000 tons of coal, 49 million KW · h of electricity, 23.8l of wood pulp and straw, and 11000 l of caustic soda for the production of the same amount of paper; One billion glass bottles are recycled a year, which can save 49000 tons of coal, 38.5 million KW · h of electricity, 49000 tons of quartz and 15700 liters of soda ash required for the production of the same amount of glass bottles; Recover all kinds of iron drums of 40000, which can save 48000 tons of steel; 100 million M of packaging cloth is recycled a year. 15000 l of cotton can be saved: 3000 sacks of all kinds can be recycled. 22.5l of raw hemp can be saved, and the total value of the above items will reach hundreds of millions of yuan. According to the statistics of the total output of the national packaging industry, the current paper packaging products are about 8.35 million tons, plastic packaging products are about 2.44 million tons, glass packaging products are about 4.44 million tons, and metal packaging products are about 1.61 million tons. At the same time, these products are also growing at a rate ranging from 12.5% to 30% every year. The research data shows that. 1 t waste paper can regenerate 0.8L new paper or 0.83t paperboard; It waste plastics can regenerate 0.75T diesel oil or 0.6L unleaded gasoline. thus it can be seen. Recycled. There is no need to worry about the problem of "raw materials". Polyester materials are used in infant hearing testing equipment