Future plastic packaging film industry development

After more than 20 years of development, China's plastic packaging film industry has formed a certain scale, occupies an important position in the packaging market, and has played a positive role in the national economy. Compared with relevant data in 1980. In 1980, the output was only 191,000 tons, and the output value was 3 billion yuan. In 2003, the output reached 4.65 million tons, and the output value reached 70 billion yuan, accounting for 26% of the 270 billion yuan in output value of the packaging industry. After more than 20 years of development, the plastic packaging film industry in China It has formed a certain scale, occupies an important position in the packaging market, and has played a positive role in the construction of the national economy.

Compared with relevant data in 1980. In 1980, the output was only 191,000 tons, and the output value was 3 billion yuan. In 2003, the output reached 4.65 million tons, and the output value reached 70 billion yuan, accounting for 26% of the 270 billion yuan in the output value of the packaging industry; the level of industry equipment has been continuously improved, and some have reached The advanced level of the developed countries has emerged a number of new products, new technologies, and new materials; the market demand has grown rapidly, and has been widely used and rapidly developed, with an average annual growth rate of 12%, and a year-on-year increase of 16% in 2003; In order to overcome the long-term situation of importing biaxially stretched films, the company exports about 300,000 tons of films each year, generating foreign exchange of 3 billion U.S. dollars.

The number of enterprises above designated size has developed rapidly. There are more than 8,000 plastic packaging materials companies in China, including 2,240 in film manufacturing, 4,300 in silk and rope woven products, 500 in foam plastics, and 679 packing boxes and packaging containers. From the figures of the recent industrial census, in order to surpass the above figures, there are 546 plastics enterprises in Dongguang County, Hebei Province, with a production capacity of 100,000 tons.

A number of industry leaders emerged. Jiangyin Shenda Group and Zhejiang Dadongnan Plastics Group, which have made a fortune from a few thousand yuan to more than one billion yuan, have become well-known large-scale packaging private enterprises at home and abroad after the struggle in the market economy; the original small and medium-sized plastic packaging companies have undergone adjustment structures. Asset reorganization and technological transformation have also gained vitality. Foshan Dongfang Packaging Materials Co., Ltd. and Foshan DuPont Hongji Packaging Materials Co., Ltd. have played an important role in the industry with a new look.

In 2003, the economic performance of the plastic packaging industry was good

1. Scale and technological innovation promote the development of soft plastic film

Soft plastic film presents a trend of large-scale development. Biaxially oriented films have the fastest growth. On the one hand, BOPP special materials have been used by six companies in China, accounting for 50% of total demand (including Shanghai Petrochemical, Beijing Yanhua, Qilu Petrochemical, Maoming Petrochemical, Guangzhou Petrochemical, and Jiujiang Petrochemical). The requirement to reach a film speed of 350-400 m/min has reduced the reliance on foreign countries; on the other hand, the newly introduced production line has been put into production in 2003 with a capacity increase of over 100,000 tons.

The combination of capital and regional advantages. Wenzhou’s Mao Fang lead and Wu Changshuo investors, looking at the northern market, established the Deli company in Lingde County, Shandong Province, and introduced an annual production capacity of 15,000 tons of BOPP production line. It was introduced in 2001. The output value in 2003 reached 220 million yuan, and the annual tax amounted to 60 million. yuan.

Innovation has become a driving force in the development of plastic packaging. The high-performance molecular assembly antibacterial film produced by Guangdong Yuankun Company and Yuankun Packaging Co., Ltd. will be put into the market and a promising step will be taken in innovation; the laser security film of Shanghai Zijiang Color Printing Co., Ltd. , Wisteria's antistatic cast polypropylene film has been included in the national torch project; Nanjing Zhongda Co-extrusion heat-sealable biaxially oriented polypropylene film maintains the thermal shrinkage of BOPP, and at the same time solves the heat sealability and cigarette film packaging. The problem solved the adhesion problem between the middle strip and the small strip, and adopted the hole location technology to solve the problem of BOPP heat sealing. In short, innovation has become a driving force for the development of plastic packaging.

2. The plastic woven industry overcomes various difficulties and achieves encouraging results

Plastic weaving and blow molding, compounding, color printing, plate making and other supporting processes have been developed simultaneously, which has increased the competitiveness in the international market and increased the export volume, effectively occupying the Asian-American market.

The rapid development of plastic weaving machinery has promoted the development of woven products. Since 2003, the technical level of plastic wire drawing machines, circular looms and related equipment have all improved to varying degrees, and a number of new products have emerged. A new coating film cylinder woven and woven bag unit has been developed. The unit integrates six processes including compounding, automatic scrap cutting, automatic hole punching, positive and negative multi-color printing, shift hemming and seven-word cutting technology. , labor and materials, reduce costs, improve quality. On the other hand, more companies that make up machinery have increased their export volume to the international market. They have previously exported to developing countries such as the Philippines, Peru, and Jordan, and then exported to South Korea, Brazil, and European and American countries. The outlook is good. Zhejiang Yanfeng Plastic Machinery Factory bulk-exports small four shuttle circular loom and is expected to reach 2 million US dollars this year. The drum-type small six shuttle circular loom from Wenzhou Hengyi Plastic Machinery Co., Ltd. has been adopted by the United States' plastic woven companies.

Asset reorganization enables the company to continue to grow and develop. Mr. Qi Qile, a Wenzhou-made plastics knitting company, went to Sichuan to seek development and occupied the market for the plastic woven bag packaging required by the feed group. This is a farsighted approach. In 1995, he built Tianjin Deer Packaging Co., Ltd. in Xinjin County; in 1998, he established a joint venture with Sichuan Hope Agricultural Co., Ltd. to build Xinle Plastics Co., Ltd.; in 2000, he established Qile Plastic-Molding Group; in 2002, it invested 100 million yuan, enabling the company to own 600 sets of plastic knitting machines. With an output value of 300 million yuan, this year it also established a plastic-bonded enterprise group with Zhejiang Longxinglong Industrial Co., Ltd. with more than 40 local plastic woven companies. It is estimated that the production value will reach 800 million yuan within two to three years after it is put into production, and will become the largest plastic knitting group in the industry. .

Plastic packaging containers (barrels, bottles, boxes) have rapidly increased production

The annual output of plastic packaging containers (barrels, bottles, boxes) reached 730,000 tons. Among the 600-odd enterprises, 24 were over 5,000 tons and 4 were over 10,000 tons, and the Zijiang Group was 95,800 tons, accounting for 15%. The country's first place, Jintai County, Hebei Province, 29,400 tons, accounting for 3.2%, Zhongfu 13,500, followed by Sanshui Jianlibao, Dongguan Yihuang and so on.

1. Plastic film Polyethylene film (PE): Includes low-density polyethylene film (LDPE), high-density polyethylene film (HDPE), and linear low-density polyethylene film (LLDPE). Is the largest amount of plastic film, accounting for about 30% of the total film consumption, although the appearance, strength and other aspects are not very satisfactory, but it has good toughness, moisture resistance and heat sealing properties, easy processing, affordable prices, So the application is very extensive. EDM or corona treatment is required before printing.

Polypropylene film (PP): Unstretched film and biaxially stretched film. Non-stretched film has better transparency, gloss, moisture resistance, heat resistance and oil resistance than PE; mechanical strength is strong Tear, puncture resistance and wear resistance; and non-toxic, odorless. Therefore, it is widely used in the packaging of foods, pharmaceuticals, textiles and other items. However, its poor cold resistance, crisp at 0-10 °C, solid can not be used for frozen food packaging. Due to its high heat resistance and good heat-sealing properties, it is often used in the heat-sealing layer of cooking bags.

Polyvinyl chloride film (PVC): divided into soft film and hard film, soft film elongation, tear strength and cold resistance is good, easy to print and heat sealing, can be made into a transparent film. Because soft PVC films have the odor of plasticizers and there is a problem of plasticizers migrating out, they cannot generally be used for food packaging. However, the internal plasticizing method can be used to package foods. Mainly used for industrial products and non-food packaging; hard film does not contain plasticizer or plasticizer content is small, film crisp, good toughness, kinks stable, good air tightness, fragrant and better Moisture resistance, excellent printing performance, non-toxic film can be made mainly for candy kink packaging, textiles, clothing packaging and cigarette and food packaging film, but the cold resistance is poor, brittle at low temperature is not suitable for For frozen food packaging materials.

a, polystyrene film (PS): rarely used as flexible packaging material

b. Polyvinylidene chloride film (PVDC): It is a flexible, transparent high barrier film. Has excellent moisture resistance, airtightness and fragrant, and has excellent resistance to acid, alkali, chemicals and oil resistance. At present, it is mainly used for the production of composite films, which is very suitable for shrink packaging of meat products such as sausages and hams.