The application prospect of PET bottles is increasingly favored by experts and manufacturers.
PET is developing rapidly at home and abroad, and the market prospect of PET bottle is promising.
Since the advent of PET in the 1950s, with its excellent performance and cost-effective advantages brought by large-scale industrial production, it has developed rapidly with its characteristics of health, safety, light weight and easy recycling. In 2005, the world's output reached 41 million tons, and it is predicted that it will reach 50 million tons in 2008. China's PET started relatively late, but developed very fast, and its output has reached 1.7 million tons. With the increase of domestic market demand, the PET packaging container has entered a new market area.
The use of PET bottles began with carbonated beverages. With the increasing number and variety of beverages, the use of PET bottles is increasing. At present, the number of PET containers used in the world has reached 150 billion, while carbonated beverages account for 38%. The output of beverages in China has reached 32 million tons, and the annual growth rate is more than 20%. The use of PET bottles in carbonated beverage packaging is increasing. It has accounted for 57%. With the sudden rise of the domestic tea and beverage market, the output of tea beverage has reached 3 million tons. Thereby, PET bottle with hot filling (85 ~90 C) has become the fastest growing variety because of its light weight (1L volume is only 56g, aluminium tank is 61g, glass is 360g). In addition, bottled water, including pure water, mineral water and distilled water, has entered tens of millions of households with a output of more than 5 million tons. The market of PET bottles needed is also a sunrise. The market has broad prospects for development.
In recent two years, the use of PET containers in milk packaging has made new breakthroughs in the world. In Italy, pasteurized milk bottles began to change from HDPE to PET packaging to solve the problems of odor and poor taste of polyolefin bottles. The corresponding equipment for blow molding, filling and pressing is also solved by the SID Le company. In addition, edible oil, condiments, soy sauce, vinegar and so on are the increasing market demand of PET bottles, providing a large market space for them. At the same time, the market of PET beer bottles has more attractive business opportunities. China is the largest beer country in the world. Beer production reached 32 million tons in 2006. At present, glass bottle packaging is still the main method. Some breweries in the United States, Japan and Europe have adopted PET packaging.
It takes about 280-30 billion beer bottles to calculate 20% of beer production in China using PET bottles, which provides a vast space for the development of PET beer bottles. At present, a few domestic enterprises are developing PET beer bottles, such as Zhongfu in Zhuhai, Zijiang in Shanghai, Sanfa in Huangyan in Zhejiang, Huake Mao Packaging Company in Xiamen. Research and development of co-injection stretch blow molding technology, surface coating technology, multi-layer blending barrier technology, production and promotion of PET beer bottles have achieved remarkable results. But as a whole, PET beer bottle is still in its infancy, and its market share is very low, so it is difficult to popularize and apply it. There are many reasons for the formation of climate.
1, improving the quality and freshness of PET beer bottles is the key.
Unlike ordinary acid drinks, trace oxidation can also change the flavor of beer, and the permeability of carbon dioxide affects the foam characteristics. Therefore, in order to meet the requirements of fresh-keeping period, the PET bottle has high permeability. At the same time, 95% of beer in our country is produced by pasteurization method, which requires the use temperature of packaging bottles to be 75 ~80 C. These requirements become the key issues in the development of PET bottles.
2, cost factors and market position
At present, the price of PET beer bottle is on the high side, about 1 yuan per bottle, while the price of glass with the same capacity is 0.5-0.8 yuan, and it can be recycled. PET bottles can only be recycled and recycled. The market orientation of PET beer bottle should be mass fast-moving consumer goods. It is mainly used for short-term packaging abroad. Due to different consumption levels and concepts in China, polynaphthalene (PEN) as raw material has higher oxygen resistance and permeability than PET if its shelf life is six months. The temperature can reach 118 degrees, but the price of PEN is more than 5 times higher than that of PET.
3. Modification of existing beer filling equipment
The PET bottle is light in weight, and its filling, conveying and sealing process is different from glass and cans, so it needs to be reformed.
In short, only by overcoming the above problems can PET beer bottles usher in a real fast development period. Therefore, it can be said that the market development of PET beer bottles has a long way to go, and related enterprises need to redouble their efforts.
Conform to the national industrial policy orientation, energy saving and consumption reduction received good results.
Since this year, after the impact of soaring raw material prices and soaring labor costs of coal and electricity transportation, plastic packaging containers have made new progress in product structure adjustment, packaging bottle design and thin-walled technology. At the same time, in accordance with the national industry-oriented policy, energy-saving and consumption-reducing wind has been vigorously promoted. The cost reduction has improved the efficiency of enterprises and achieved good results. For example, the bottle blowing production line of Shanghai Zijiang Special Bottle Industry (article source: China Wine News Network) is connected with the Pepsi-Cola filling line. On-site bottle blowing, packaging and transportation reduce costs and ensure quality, and both sides gain profits. The energy-saving technology potential of large-scale hollow container forming enterprises and container manufacturing industry is greater. The injection of hydraulic and pneumatic systems into the blanks of raw materials and modules, the control of opening and closing moulds and additional actions are the main parts of energy consumption, which can be greatly saved by technical transformation. At the same time, the development of multi-point radial wall thickness servo control system technology can reduce the weight of products, save energy, reduce consumption and improve production efficiency. In this respect, Qinchuan Plastic Machinery Factory will have a new and better effect in the future.