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Polyester bottle is the fastest-growing and most attractive plastic bottle variety in recent years. The introduction of a large number of injection and blowing technology equipments has promoted the significant expansion of PET bottles, and has gained market recognition with its excellent performance. In just a few years, polyester bottles have become mainstream materials for various food, beverage, edible oil and other packaging bottles. At the same time, demand in the cosmetics and pharmaceutical industries is also increasing. According to information, at present, the proportion of PET bottles used in carbonated beverage bottles in China has exceeded 60%.
The domestic market for tea beverages has sprung up. Hot-filled PET bottles at 85-90°C have become the fastest-growing varieties of polyester bottles in recent years, with annual growth rates exceeding 50%. Today, the annual output of tea beverages has reached 3 million tons.
The development of polypropylene transparent packaging bottles is another hot spot for plastic packaging bottles at home and abroad in recent years. The new high-transparency PP can be widely used in injection, extrusion, blowing, extrusion, thermoforming various containers, food, medicine bottles, etc., its cost-effective, is the PS, ABS, PET, PE bottle competitors, the market prospects are broad.
PET material has good barrier properties, making it the most important bottle material in various carbonated beverages, juices, dairy products, tea beverages, mineral water and other packaging bottles, and almost completely replaced the glass packaging in many fields. bottle. However, as the largest market for glass bottles, PET has received the greatest resistance, allowing plastic packaging factories to generate the most market associations.
The high barrier technology for beer bottles has always been an important goal of the plastic packaging industry. Different manufacturers have developed a variety of high barrier technologies. Judging from the current market situation, multi-layer composite technology is a barrier technology that many manufacturers are optimistic about. Multilayer composites generally use polyester as the inner and outer layers, and EVOH, PEN, or nylon structures as the barrier layers. Due to the high cost of PEN, it has been used less frequently. For example, EVOH or nylon is used as a barrier layer in three-layer composite plastic beer bottles successfully developed by Zhuhai Zhongfu. Relatively speaking, the composite process is more complex, but the barrier effect can meet the requirements of beer bottles. And compared with PEN, it can obviously reduce costs. Active oxygen barrier is a new type of barrier technology that has attracted much attention in recent years. U.S. Invista has developed a single-layer PET barrier bottle with active oxygen barrier properties and has been tested at some brewery plants. Nanotechnology is also one of the main methods to achieve product functionalization and barrier properties. U.S. Polyester Production Co., Ltd. and Eastman Chemical Co., Ltd. jointly developed nylon nanocomposites Imperm for PET co-extruded multi-layer blow molding, used as a barrier core material for PET/nylon/PET three-layer bottles. The Chinese Academy of Sciences has also successfully developed nano PET beer bottles for beer bottles that can meet the long shelf life requirements.
Although there is still a long way to go for the use of various plastics in beer bottles, the continuous development of high barrier technology has achieved certain progress in the beer field, while packaging in beverages, pharmaceuticals, cosmetics, and pesticides with high barrier requirements. Bottles are playing more and more roles and the market for plastic bottles has been further expanded.
Plastic packaging bottles have a wide application market. Beverage bottles are the largest market for plastic bottles. With the continuous improvement of the overall living standards of society, the demand for plastic containers for various soft drinks, juices, vegetables and beverages is increasing.