On the types of beverage packaging

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Talking about the types of beverage packaging

with the development of the national economy and the increasing improvement of people's living standards, China's beverage industry has developed rapidly, especially the variety of beverage, which has developed from a single glass bottled soft drink before the 1970s to today, and the experiment between 20KN and 50kN can complete the situation that carbonated drinks and natural drinks are blooming. The beverage packaging industry has also shown a trend of diversification, breaking the monopoly market pattern of single glass containers in the past. Metal, plastic, paper and other materials have been applied to beverage packaging. Metal cans, PET bottles, PP bottles, Tetra Pak, Kangmei bags, roof bags, black-and-white films and other packaging materials have appeared

according to statistics, the annual output of Chinese beverages is basically increasing year by year, maintaining a double-digit percentage growth rate of about 10% - 20%. The average annual total output has been close to 30million tons. It is one of the fastest-growing industries in the food industry to meet their needs of outdoor life. At present, the popular products in the domestic beverage market are mainly fruit juices containing fruit pulp, fruit fiber, low sugar or sugar free tea drinks, bottled water and other products. It is estimated that the fastest-growing beverage products in 2007 will be low sugar or sugar free drinks, tea drinks of various flavors, and health drinks of fruits, vegetables and flowers. With the development trend of product refinement and segmentation, the beverage market for different beverage consumption groups will be more colorful

current situation of beverage packaging market

with the emergence of various types of beverages, the beverage packaging industry has also developed rapidly. After breaking the monopoly market pattern of a single glass container, metal containers, plastic containers and paper containers have emerged one after another, and beverage packaging has shown a diversified development trend. After years of market accumulation, the market of carbonated drinks, pure water and mineral water drinks has been quite stable. The classic image of Coca Cola beverage can packaging cannot be easily shaken. If mineral water drinks want to occupy a certain share in the market, they can only make some changes in the design and capacity of pet bottles. In recent years, 2L packaging suitable for household and catering consumption has a lot of market

I. glass bottle

glass is a kind of packaging material with a long history, and glass bottle is also China's traditional beverage packaging container. In the case of a variety of packaging materials flooding into the market, glass containers still occupy an important position in beverage packaging, because it has packaging characteristics that cannot be replaced by other packaging materials, but the amount of use began to decrease significantly. The main characteristics of glass packaging containers are: non-toxic, tasteless, transparent, beautiful, good barrier, airtight, rich raw materials, low price, and can be used repeatedly. Moreover, it has the advantages of heat resistance, pressure resistance and cleaning resistance. It can be sterilized at high temperature and stored at low temperature. It is precisely because of its many advantages that it has become the preferred material for many drinks with high requirements for packaging containers, such as fruit tea, wild jujube juice and so on. However, glass packaging containers also have some disadvantages: they are mainly heavy, easy to be damaged, high transportation costs, poor secondary processing performance such as printing, which has led to a significant reduction in usage. Nowadays, there are basically no drinks using glass as containers on the shelves with E5 ball screws in large supermarkets. Only in places with low consumption power such as schools, small stores, canteens, small restaurants, can we see cheap glass bottled carbonated drinks Traces of soymilk and herbal tea

II. Metal cans

metal cans packaged with beverages are divided into two-piece cans and three piece cans. Two piece cans are mainly made of aluminum alloy plates, which are mostly used for the packaging of carbonated beverages; Three piece cans are mainly tinned steel sheets (tinplate), which are mostly used for beverage packaging without carbonation

as a beverage packaging, metal cans have the following advantages: first, they have excellent barrier performance. It can not only block gas, but also light, which can make the beverage have a long shelf life. Second, it has excellent mechanical properties, which are mainly manifested in high temperature resistance, humidity change resistance, pressure resistance, pest resistance and erosion of harmful substances. Third, it is not easy to damage, easy to carry, and adapt to the fast-paced life of modern society. Fourth, the surface decoration is good, which can stimulate consumption and promote sales. Fifth, it can be recycled. However, metal packaging containers also have certain disadvantages, mainly manifested in poor chemical stability, poor alkali resistance, poor quality of internal coating or poor technology, which will make the beverage taste bad. At present, the annual consumption of aluminum cans in China is 6-7 billion. Raw materials need to be imported in large quantities and are expensive. Coupled with environmental pollution and other factors, the state has no longer approved the construction of new aluminum cans production lines

III. plastic packaging

Plastic packaging in the beverage industry has attractive business opportunities. In 2002, the output of beverages reached 20.24 million tons, and the demand for plastic containers for soda, fruit juice, vegetables and beverages is increasing day by day. In today's beverage market, pet plays a major role in the container application of tea, carbonated beverages, fruit juice and bottled water, and its prospect is promising. For example, the Watsons ring bottle that makes people fall in love at first sight, the slim Huiyuan He + she plastic bottle, the lovely Yanjing Dongdong conical bottle, etc., pet makes the shape of beverage packaging diverse

in the past two years, there have been more and more new packaging in China's beverage market. At present, there are mainly several kinds of plastics used for beverage packaging:

1. PE (polyethylene):

PE is the largest synthetic resin in the world and the largest plastic packaging material in consumption. Polyethylene products are divided into low density, medium density and high density. Among them, high density polyethylene (HDPE) has high crystallinity, good hardness, air tightness, mechanical strength and chemical resistance, so it is widely used to blow molding into hollow containers such as bottles. Using the good heat sealing performance of PE, the containers made of various composite materials can contain lemon juice, fruit juice and other beverages

2. PVC (polyvinyl chloride):

PVC can be roughly divided into hard products, soft products and paste products. PVC bottles produced by injection, pulling and blowing method have no seams, and the thickness of the bottle wall is even, which can contain aerated beverages such as cola, soda, etc; PVC bottles produced by extrusion blow molding are only suitable for containing fruit juice and mineral water

3. PP (polypropylene):

the development of polypropylene transparent packaging bottles is a hot spot in plastic packaging at home and abroad in recent years. With the successful development of transparent modifier nucleating agent, 0.1% - 0.4% sorbitol xylene (benzaldehyde) nucleating agent is added to ordinary pp. the high transparent PP bottle produced can be widely used in the packaging of beverages that need heat sterilization, such as concentrated fruit juice, which need high temperature filling. Its price is appropriate, pressure resistance and temperature resistance. It is a new competitor of PS, ABS, pet and PE bottles

4. Polyester (PET or PETP):

pet bottles produced by biaxial extension blow molding have good transparency, high surface gloss and glassy appearance. They are the most suitable plastic bottles to replace glass bottles. In recent years, the production of PET bottles in China has developed rapidly and is widely used in all kinds of tea drinks, fruit juices and other beverages that need hot filling, such as Pepsi Cola 600ml, 1.25l, 2L and 2.5L PET bottles. Different volumes are aimed at the different needs of individuals and families, and are well received by consumers

in terms of market share of major beverage countries in the world, PET bottles account for more than 70%. The results of a survey show that by 2007, the market sales of plastics for food and beverage packaging in Europe will increase by 5.7 from US $4.91 billion in 2000. The length of lengthened pipe (short pipe):500mm; To US $7.15 billion, with an average annual growth rate of 5.5%. At present, China is also in the high-speed development stage of PET beverage packaging, and the demand for polyester bottles is increasing by double digits every year. PET bottles account for 57.4% of the domestic carbonated beverage packaging. It can be seen that polyester bottle packaging has occupied the main share of the domestic beverage packaging market. Consumers widely believe that PET bottles have the characteristics of large capacity, transparency, strong intuition, light weight, easy opening, refrigeration, convenient carrying, firmness, recyclability and so on, which provide a broad market prospect for their development

IV. paper containers

paper containers are used in beverage packaging, mainly referring to Tetra Pak, Kangmei Bao and other paper plastic composite packaging containers made of paper composite PE film or aluminum foil. They have the shape of roof bags, sterile square bricks, etc., and have the characteristics of low cost, light weight, pollution-free, recyclable and so on. They are green packaging. It is mainly used in the packaging of short-term fresh milk, yogurt and long-term fresh dairy drinks, tea drinks, fruit juice and other beverages. However, the pressure resistance and sealing barrier of paper plastic composite containers are not as good as glass bottles, metal cans and plastic containers, and they cannot be heated and sterilized. Therefore, during the storage process, the heat sealing performance of preformed cartons will be reduced due to the oxidation of PE film, or they will become uneven due to creases, lower than fiber hardening and other reasons, resulting in the problem of difficult feeding of filling molding machines

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