Most of the soft packaging used in domestic liquid milk and fruit juice beverages is Tetra Pak from Sweden Tetra Pak, also known as Tetra Pak. Some domestic companies use EVOH (ethylene-vinyl alcohol copolymer) to form a composite film by coating and co-extruding, which is used in product packaging.
Luoyang Juer Dairy Co., Ltd., Qingdao Haoda Industrial Co., Ltd., and Tianjin Dairy Group all imported advanced foreign equipment and processes, and built a domestically leading ultra-high temperature sterilization fresh milk flexible packaging production line to produce a 5-layer coextruded composite of new EVOH. Film liquid milk packaging. This new flexible package will be replaced by Tetra Pak.
However, there is no large-scale production of EVOH as a raw material, and EVOH used in China depends on imports.
Difficulties: There is no domestic industrial production
Ethylene-vinyl alcohol copolymer, abbreviated as EVOH, is a random copolymer obtained from the saponification reaction of ethylene-vinyl acetate copolymer. The proportion is usually 20%-40% of ethylene and 60%-80% of vinyl alcohol. Can be seen as a modified polyvinyl alcohol (PVA), and its production process is similar to PVA.
EVOH has the advantages of high performance, low cost, low pollution, etc. It has been widely used in packaging materials, medical materials, textile materials, structural materials, etc. The development and utilization of the EVOH have broad prospects.
EVOH resin has high barrier to gas, water, and chemical solvents. It is an excellent barrier material today. It has a great advantage in extending the storage period of packaged foods and making plastic packaging lighter and harder to break. Improve the quality of packaging has an important position.
In recent years, the world's EVOH production has developed slowly. As of the end of 2012, only Kuraray, Synthetic Chemical Industry, and Changchun Petrochemical Company in Taiwan produced EVOH. The production facilities are located in the United States, the United Kingdom, Japan, Germany, and Taiwan, China. The total annual production capacity is 132,000 tons, an increase of 2.32% over 2011.
There is no large-scale EVOH industrial manufacturer in China. The EVOH required is basically imported. However, domestic research institutes have already developed their applications, and many manufacturers already have the ability to process EVOH. It is reported that the Institute of Chemical Industry of Forest Products under the Chinese Academy of Forestry has successfully developed EVOH film and established the process and formula for preparing EVOH.
Market: Stable growth is the trend
EVOH consumption areas mainly include barrier gas packaging films, gasoline tanks, EVOH multi-layer composite bottles, and coextruded plastic sheets, among which the demand for barrier gas packaging films is 54,700 tons, accounting for 51.8% of the total consumption.
In recent years, the total consumption of EVOH in the world has steadily increased. In 2009, the total consumption was 97,100 tons. In 2012, it increased to 105,600 tons, of which the consumption in North America was 45,500 tons, accounting for 43.08% of the total consumption.
China's EVOH imports mainly come from Japan. In 2012, the consumption was 4,800 tons. Among them, the consumption of barrier gas packaging films and the consumption of co-extruded plastic sheets accounted for half of the total consumption. The consumption of gasoline tanks accounted for the total consumption. The amount of 26.5%.
With the upgrading of China's food packaging products and the rapid development of the automotive industry, the demand for EVOH will steadily increase. It is estimated that the demand for EVOH in the world will reach 130,000 tons by 2017. China is the country with the fastest growth rate of EVOH, and the average annual growth rate of consumption from 2012 to 2017 will reach 7.8%. Among them, the fuel tank is the fastest growing application area for EVOH consumption in China, with an average annual growth rate of consumption of 18.1%.
Breakthrough: PVA companies turn to find new growth points
At present, the annual consumption of EVOH packaging materials accounts for 40% of the high-barrier packaging materials raw material consumer market, which has been industrialized in foreign countries, while China’s development and production are still at the initial stage. Many packaging materials, especially food and drug packaging materials, cannot Satisfy the high barrier requirements, and can not meet the domestic market, let alone participate in international market competition.
In Europe, the United States, Japan and other developed countries, EVOH has been widely used in long-term shelf life of meat, vegetables, canned fruit juices and condiments and other food packaging in the form of multi-layer films or cups and bottles. In China, long shelf life products in food use traditional tinplate or glass bottles. The commonly used plastic bottles are also not added with high barrier materials. Due to their poor barrier properties, the product shelf life is generally only 3 to 6 months.
Therefore, the production and development of EVOH is still a virgin land in China.
The production process of EVOH is similar to that of PVA. Currently, the world's EVOH producers are leading PVA producers. China has built several sets of PVA production equipment, and the technology is relatively mature, and there will be excess capacity in the future. Enterprises can take virgin lands and occupy the highlands.
The EVOH pilot study of Sinopec's Sichuan-Weiyin Plant passed the review of the technical review of the Sinopec Ministry of Science and Technology, and started the development of pilot-scale technology and the preparation of process packages.
In the future, PVA manufacturers should further accelerate the development of EVOH technology and strive to achieve industrial production as soon as possible. This will not only ease the contradiction between domestic supply and demand, but also find new economic growth points for PVA manufacturers.
Luoyang Juer Dairy Co., Ltd., Qingdao Haoda Industrial Co., Ltd., and Tianjin Dairy Group all imported advanced foreign equipment and processes, and built a domestically leading ultra-high temperature sterilization fresh milk flexible packaging production line to produce a 5-layer coextruded composite of new EVOH. Film liquid milk packaging. This new flexible package will be replaced by Tetra Pak.
However, there is no large-scale production of EVOH as a raw material, and EVOH used in China depends on imports.
Difficulties: There is no domestic industrial production
Ethylene-vinyl alcohol copolymer, abbreviated as EVOH, is a random copolymer obtained from the saponification reaction of ethylene-vinyl acetate copolymer. The proportion is usually 20%-40% of ethylene and 60%-80% of vinyl alcohol. Can be seen as a modified polyvinyl alcohol (PVA), and its production process is similar to PVA.
EVOH resin has high barrier to gas, water, and chemical solvents. It is an excellent barrier material today. It has a great advantage in extending the storage period of packaged foods and making plastic packaging lighter and harder to break. Improve the quality of packaging has an important position.
In recent years, the world's EVOH production has developed slowly. As of the end of 2012, only Kuraray, Synthetic Chemical Industry, and Changchun Petrochemical Company in Taiwan produced EVOH. The production facilities are located in the United States, the United Kingdom, Japan, Germany, and Taiwan, China. The total annual production capacity is 132,000 tons, an increase of 2.32% over 2011.
There is no large-scale EVOH industrial manufacturer in China. The EVOH required is basically imported. However, domestic research institutes have already developed their applications, and many manufacturers already have the ability to process EVOH. It is reported that the Institute of Chemical Industry of Forest Products under the Chinese Academy of Forestry has successfully developed EVOH film and established the process and formula for preparing EVOH.
Market: Stable growth is the trend
EVOH consumption areas mainly include barrier gas packaging films, gasoline tanks, EVOH multi-layer composite bottles, and coextruded plastic sheets, among which the demand for barrier gas packaging films is 54,700 tons, accounting for 51.8% of the total consumption.
In recent years, the total consumption of EVOH in the world has steadily increased. In 2009, the total consumption was 97,100 tons. In 2012, it increased to 105,600 tons, of which the consumption in North America was 45,500 tons, accounting for 43.08% of the total consumption.
China's EVOH imports mainly come from Japan. In 2012, the consumption was 4,800 tons. Among them, the consumption of barrier gas packaging films and the consumption of co-extruded plastic sheets accounted for half of the total consumption. The consumption of gasoline tanks accounted for the total consumption. The amount of 26.5%.
With the upgrading of China's food packaging products and the rapid development of the automotive industry, the demand for EVOH will steadily increase. It is estimated that the demand for EVOH in the world will reach 130,000 tons by 2017. China is the country with the fastest growth rate of EVOH, and the average annual growth rate of consumption from 2012 to 2017 will reach 7.8%. Among them, the fuel tank is the fastest growing application area for EVOH consumption in China, with an average annual growth rate of consumption of 18.1%.
Breakthrough: PVA companies turn to find new growth points
At present, the annual consumption of EVOH packaging materials accounts for 40% of the high-barrier packaging materials raw material consumer market, which has been industrialized in foreign countries, while China’s development and production are still at the initial stage. Many packaging materials, especially food and drug packaging materials, cannot Satisfy the high barrier requirements, and can not meet the domestic market, let alone participate in international market competition.
In Europe, the United States, Japan and other developed countries, EVOH has been widely used in long-term shelf life of meat, vegetables, canned fruit juices and condiments and other food packaging in the form of multi-layer films or cups and bottles. In China, long shelf life products in food use traditional tinplate or glass bottles. The commonly used plastic bottles are also not added with high barrier materials. Due to their poor barrier properties, the product shelf life is generally only 3 to 6 months.
Therefore, the production and development of EVOH is still a virgin land in China.
The production process of EVOH is similar to that of PVA. Currently, the world's EVOH producers are leading PVA producers. China has built several sets of PVA production equipment, and the technology is relatively mature, and there will be excess capacity in the future. Enterprises can take virgin lands and occupy the highlands.
The EVOH pilot study of Sinopec's Sichuan-Weiyin Plant passed the review of the technical review of the Sinopec Ministry of Science and Technology, and started the development of pilot-scale technology and the preparation of process packages.
In the future, PVA manufacturers should further accelerate the development of EVOH technology and strive to achieve industrial production as soon as possible. This will not only ease the contradiction between domestic supply and demand, but also find new economic growth points for PVA manufacturers.
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