Development status of PET plastic bottles in China

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Development status of PET plastic bottles in China

for small and medium-sized enterprises with limited human and material resources, it is better to invest the limited human and material resources in the research and development of PET bottle packaging containers in the fields of daily chemicals, medicine, food, condiments, etc. than to use a large amount of human and material resources in the research and development of PET beer bottles, so as to obtain better practical benefits. Among polyester packaging containers, another product that deserves high attention in the industry is the aforementioned APET sheet thermoforming container. It has the comprehensive advantages of less one-time investment, less process difficulty, excellent product performance, relatively low price and wide application, and has huge development space. Therefore, the development of APET thermoforming containers should be strengthened

at present, polyester containers in China are mainly limited to biaxially stretched polyester blow molding bottles. China's biaxially stretched polyester blow molding bottles started relatively late in the plastic packaging industry. However, since the introduction of the injection and blow PET bottle production line in Japan in the 1980s, which can stop stretching, tightening, zigzagging, peeling, tearing and other performance experiments on various materials, it has achieved good results in the beverage packaging represented by cola. Subsequently, a large number of foreign advanced injection and blow PET bottle production equipment have been introduced, At the same time, on the basis of digesting foreign advanced technology, we have developed a two-step pet stretch blow molding machine with independent intellectual property rights, which is suitable for China's national conditions and has a simple structure. It is used in conjunction with the general-purpose injection machine to blow pet bi-directional stretch bottles using the PET bottle blanks manufactured by the general-purpose injection machine

among the domestic two-step biaxial stretching PET bottle blowing machines, some models can produce not only ordinary pet biaxial stretching bottles, but also heat-resistant biaxial stretching PET bottles. The volume of the products that can be produced basically covers a wide range of fields that can be produced by imported equipment, from small bottles of tens of milliliters to large barrels of 5 gallons. These simple bottle blowing machines not only have the advantages of low cost and strong mobility, but also can produce 57 fly ash small hollow blocks to produce high-quality and practical biaxial tensile PET bottle blowing. Therefore, they have been widely recognized by the plastic processing industry at home and abroad. In addition to being widely used in China, some of them have been exported for export. Although there is still a gap between these equipment and imported advanced equipment in terms of low production efficiency, poor automation and poor dimensional accuracy of products, there are still some difficulties in the application of some application fields with particularly strict requirements (such as the packaging of Coca Cola, Pepsi Cola and other products). In addition, the production equipment for multi-layer co blow molded PET bottles has yet to be developed in China, but the domestic two-step global 3D printing boom has only increased. The development and utilization of biaxial stretching PET bottle blowing machines has played an important and huge role in promoting the rapid development of PET bottle production

at present, among the PET bottle production enterprises in China, there are large backbone enterprises that have the most advanced automatic pet bottle production lines manufactured by famous enterprises in the world (such as the full-automatic PET bottle production lines of ASB company and Aoki solid company in Japan, the full-automatic PET bottle production lines of sedel company in France and the full-automatic PET bottle production lines of SIPA company in Italy). At the same time, There are also a large number of small and medium-sized enterprises that use simple and practical two-way PET bottle blowing machines with different degrees of automation designed and manufactured by China, showing an unprecedented situation of flowers competing for beauty and prosperity

at present, the backbone enterprises with the largest output in China's pet bottle production industry are Zhuhai Zhongfu and Shanghai Zijiang group, which respectively occupy about 30% and 20% of the domestic PET bottle market share. Zhuhai Zhongfu group is the first pet bottle manufacturer recognized by Coca Cola and Pepsi Cola in China. In 2001, the group's pet bottle output reached 3.2 billion, including 700million hot filling bottles, with a sales volume of 2.34 billion yuan. It has more than 30 factories in various regions. Shanghai Zijiang group has also developed rapidly in recent years. Its holding companies in various regions have grown to 15, occupying the markets in Wuhan, Zhengzhou, Tianjin, Changchun, Kunshan, Chengdu and other places. The newly built pet hot filling bottles with an annual output of 120million have been put into production. In 2002, it invested and built factories in Shanghai, Guangzhou, Chengdu, Beijing and other places, with a production capacity of 485million hot filling bottles

with the rapid development of PET bottles, the production of bottle grade PET resin in China has also developed rapidly. It is reported that in 1995, the consumption of bottle grade PET resin in China was 100000 t, of which the domestic production was 60000 T. by 2000, the consumption of bottle grade PET resin in China was 520000 T, and the domestic production capacity had reached 500000 t. In addition to the rapid growth of quantity, the quality has also been greatly improved. Bottle grade PET resins produced by Yizheng Chemical fiber, Shanghai Yuandong, Changzhou Huayuan and other companies have been recognized by Coca Cola

the mainstream products of PET bottles in China are limited to beverages such as cola, mineral water and distilled water at the initial stage. The front end of the printing paper can be cut into a 3-angle shape and pushed into the paper inlet container. In application, PET bottles have been widely welcomed by users with their excellent performance and reasonable price. On the basis of the successful application of these beverage packaging, PET bottles have been used in heat-resistant bottled beverages such as black tea, green tea, fruit juice, edible oil, cosmetics It has been expanded in medicine, pesticide and other industries. It is reported that the output of PET bottles in China was 3billion in 1996, increased to 5billion in 1998, reached 8billion in 2000, 9billion in 2001, 10billion in 2002 and 13billion in 2004, becoming the largest variety of plastic packaging materials

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