The most popular PVDC has a broad prospect in the

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PVDC has a great prospect in the packaging material market (1)

1. The all-weather high barrier advantage has developed rapidly in China in recent years. As a packaging material, PVDC is the only packaging material with high oxygen and humidity resistance in common polymers. Not only that, Its flexibility Low temperature heat sealing, oil penetration resistance and corrosion resistance are all top-notch. Therefore, it is not too much to call it an all-weather high barrier flexible packaging material. It has always been recognized by experts in the industry. Because of its unique advantages, over the past half century, although various types of plastic films have been emerging with advanced multi-channel data collection and diagnosis systems, they have not shaken their leading position, that is, EVOH, which appeared in the 1980s, has very high oxygen resistance and Its unique environmental effect, but its resistance to humidity is significantly reduced, so it must be protected from humidity; In order to achieve the effect of high oxygen resistance, the application range is greatly limited. For another example, the barrier property of biaxially stretched pet and PA can only be called as the lower middle level, and their moisture or oxygen permeability is 10~100 times greater than that of PVDC. In the food market with extremely rich materials, merchants pay attention to shelf life. Therefore, the scope of application is also limited. In China, the real introduction and application of PVDC packaging began in the early 1990s. At that time, due to the limitations of living standards and market supply, PVDC packaging was limited to the packaging of new intestines and cigarettes, and there were few large-scale food packaging. At present, although the application of PVDC single film is still lingering in the field of meat intestines and fish intestines, and the large-scale fresh-keeping film has not yet opened the situation, the coated film with low cost and excellent moisture resistance and oxygen resistance has been applied to the food market. Just take Futong company as an example. During the five years from 1999 to 2003, it has grown from tens of tons to over 1000 tons. The absolute sales volume in 2003 increased by more than 400 tons compared with that in 2002. In terms of a certain food packaging, such as the cake packaging of "ShaQima", the sales volume in 2003 doubled compared with that in 2002. This simple data indicates that this vigorous growth rate in China's high barrier flexible packaging, along with the improvement of people's living standards, began to pursue the quality of life, requiring not only food and clothing, not only the abundance of food, but also the convenience of eating, freshness and taste. The unique double high barrier and all-weather advantages suitable for modern packaging of PVDC are highlighted. At present, the development of PVDC flexible packaging in China has ended the dilemma of wandering for 10 years, showing a vibrant prospect

II. The market potential is commendable

in terms of the macro food packaging market, according to the data of PSP intelligence, the food packaging rate of Yanmei, Europe and Japan reached%, while that of China, India and Southeast Asia was only 5%. In the early days, China always listed "shirtless food", even though the packaging was not hygienic and beautiful. In recent ten years, although there has been a great improvement, the market can see colorful small food packaging, but the real high barrier packaging share is very small. From the analysis of the current population share, it was 0.002kz/person year at the fifth session of the 102nd National People's Congress, only 1% of the annual consumption of the Japanese. The above two sets of data show that the potential market for food packaging is quite strong in both China and Southeast Asia. 8. The steps to replace the printing paper roll will be the preparation technology of injectable ceramics, degradable fixed materials and new low modulus titanium alloys in the future; Medical magnesium alloy and other bone repair materials, spine repair materials, functional bionic artificial joints, surface biological functionalized artificial joints and their preparation technologies; In the past 10 years, the market absorption of PVDC flexible packaging in China will increase several times to ten times. Especially for the development of the vast rural market, due to the dispersion and long distance, the high barrier food packaging is more prominent

in addition to the macro market potential, there are still areas that are very mature abroad and still belong to "frozen soil" in China to be developed. One is paper coating. In the United States, the application direction of PVDC products is mainly in two fields: one is. Fresh keeping film is almost a household consumable. Second, paper coating, which accounts for 40% of the total consumption of PVDC. For fresh-keeping film, PE film with low price in China; There are few hits on the market, but there have been no reports of large-scale success of paper coating so far, mainly due to cognition and corresponding cost problems. The second is the packaging of instant noodles. In Japan, 48% of kpet is used for instant noodle packaging and 18% of kPa is used for instant noodle soup packaging, but it has not been really developed and used in China so far. Although many companies agreed to try it out, they refused because the existing packaging could be maintained. In addition, the PTP packaging of drugs can also be further developed. The year before last, Hangzhou plastic factory developed the packaging of Chinese patent medicine with PVC/PVDC hard films, which was the year before; The development trend of breaking the expectation by 25%. However, with the high requirements for drug packaging in China, pure PVC hard films can not meet the requirements of moisture and oxygen resistance. A large number of PVC/PVDC hard films will be applied to the drug market. In recent years, the PVC/pvdcptp packaging of Europe and the United States has increased at a rate of 25% every year, which can be used for reference

III. a new trend worthy of attention

over the years, since PVDC came into being in World War II and was initially used in military affairs, it has been covered with a mysterious color. Its founding enterprise Dow Corporation of the United States listed it as a non transferable technology. For decades, this product has been tightly blocked in China. At its most arrogant, it only provides terminal products, or even raw materials, that is, it only sells you films rather than resins. The successful development of PVDC in China has broken this technical blockade, making products, technologies and application equipment popular in China, but its products are still flooded in the Chinese market. In recent years, due to the technological progress of China's PVDC processing industry, PVDC coating films have begun to be exported to foreign countries. Canada, the United States, Europe, South Africa, and even Argentina in South America have purchased goods, and the absorption has increased year by year. Only Futong company exported tentatively in 2002, and nearly 100 tons of PVDC products were exported in 2003. However, PVDC products have always been the high-tech monopoly products of western developed countries. In recent years, why did it change from an exporting country to an importing country? According to our preliminary analysis, the price advantage is the main one. Due to the rapid development of plastic film in China in recent years, the price can compete with western countries. The second is technological progress. The internal quality of PVDC composite film (mainly coating film) in China is by no means worse than that in developed countries. From this phenomenon, it can be proved that PVDC packaging film, which has been selling well for half a century in western countries, is still developing. Why would China doubt its application prospect

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