Current situation and development trend of the hot

2022-09-21
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Current situation and development trend of plastic packaging materials (4)

IV. existing problems and Countermeasures

1 Repeated introduction, repeated construction and production are the same after the experiment

biaxial tensile film: BOPP repeated introduction is the most serious. From the late 1970s to the late 1990s, 31 Enterprises in 16 provinces and cities across the country introduced 37 BOPP film production lines, with a total annual production capacity of 127000 tons; From 1991 to the end of 1999, a total of 33 BOPP production lines were introduced, with a single line capacity of 6000 ~ 10000 tons, a width of more than 6m and a line speed of more than 250m/min. 46 production enterprises have been introduced, with a total of 70 production lines, a production capacity of 400000 tons and an output of 300000 tons; In the three years from 2000 to 2002, this overheating phenomenon did not decline, forming a new round of introduction climax. In these three years, a total of 20 production lines have been introduced, and 20 have been signed and arrived from 2003 to 2004, making the production capacity soar to 700000 tons (the actual output in 2002 was 500000 tons, and the output in 2003 was about 580000 tons). After all these projects are put into operation, it is estimated that the production capacity of BOPP will exceed 1million tons

at present, the market supply of BOPP film exceeds the demand. However, some enterprises are still desperate to expand their scale regardless of risks. In 2003, the momentum of blind introduction remained unabated. In particular, the southeast coastal areas signed 10 production lines with Bruckner of Germany and Mitsubishi of Japan respectively, with an annual production capacity of nearly 200000 tons (some enterprises signed 4 production lines at one go). By 2004, the situation was hot because of the hegemony and competition for market share. Such disorderly and out of control BOPP film competition is bound to become white hot, and the victims must be manufacturers, just like the phenomenon that occurred in the household appliance industry that produced refrigerators, air conditioners and color TVs a few years ago. For this reason, we have to appeal loudly: the wind of repeated introduction of BOPP production line should be stopped! It is suggested that relevant state departments, customs, banks, etc. should take strong measures to prevent blind repeated introduction

how much BOPP film is consumed in the Chinese market? According to the research report published by the world AMI consulting company, the consumption of BOPP film in the world in 2002 was 3million tons, which is predicted to be 5.7 million tons by 2010, while the consumption in the Chinese market is 1million tons. The following table is the prediction of China's BOPP application market demand:

products in 2000 (10000 tons) 2005 (10000 tons) light film for printing, lamination and coating 3041 adhesive tape 57 pearlescent film 57.5 smoke film 78.5 capacitor film 0.81.4 metallized film 1.52.2 special mold 12.5 total 50.370.1

from the above table, it can be seen that the outlet of the current enterprise, in addition to strengthening management and reducing costs, should also improve quality, strive to develop new products and produce multifunctional special films, Such as: smoke film, extinction film, pearlescent film, aluminized film, antibacterial film, etc; Efforts should be made to develop export channels and sell films abroad

introduction of BOPET production line: in the 1970s, China began to produce polyester film with less fatigue testing machine measurement process. In the 1980s, equipment was introduced, gradually developing from the production of photosensitive materials, insulating materials and audio-visual tapes to packaging base materials. By 1995, 14 production lines were introduced, with an output of 40000 tons; In 1997 and 1998, affected by the financial crisis and the impact of smuggling imports, the domestic market was affected; From 1999 to 2000, the market situation of bet was very good, and the output in 2000 doubled to 85000 tons compared with 1995. The demand for food packaging, bronzing film, card protection film, electrical insulation film and capacitor film also increased; By the end of 2001, the production capacity will reach 160000 tons and the output will be 100000 tons; In 2002, it reached 180000 tons, with an output of 120000 tons. It is predicted that there is still a certain market space for BOPET, but since 2002, the development momentum has been too strong. In 2003, the production capacity reached 250000 tons and the output was 140000 tons

it is estimated that 16 lines will be put into operation from 2003 to 2005, increasing the production capacity by 190000 ~ 200000 tons. It is predicted that the total consumption in 2005 will be 250000 tons, so the production capacity of BOPET will increase from 180000 tons in 2002 to 380000 tons. At that time, the market will change. Like BOPP, there will be saturation, oversupply, and a big decline in economic benefits, which is worthy of attention

the introduction of BOPA film production line deserves attention: BOPA film has high permeability, puncture resistance, low temperature resistance and good oil resistance. It is mainly used in cooking bags, frozen vacuum packaging, fresh meat, cheese, flavored food and covering materials. In recent years, the market consumption has gradually expanded, and it is a development trend to use it in food composite packaging. BOPA film develops rapidly in the world. Japan grows at a rate of 15% - 20% every year, while European and American countries increase at a rate of 8% - 10%. The world total is 110000 ~ 130000 tons. In China, there are only two production lines of Foshan Dongfang packaging materials company, with a capacity of 6000 tons. It is predicted that the domestic market will demand 20000 tons by 2005, and there is still some room for market development

it is necessary to introduce technology and equipment, but it is more important to digest and absorb and take the road of innovation. In view of the large number of introduction of biaxial stretching equipment, many enterprises have realized that it is necessary to develop domestic technical equipment, such as Xi'an Aero Engine Company, Guilin Electric Appliance Research Institute, Shantou Far East equipment company, Jinan mechanical equipment company, and Beijing Institute of optoelectronics, which cooperated with Nanjing Lanpu company long ago to manufacture the first annual output of 3000 tons of BOPET film production line. After the trial operation, a new line was launched last year. By adjusting parameters, Gradually improve, improve the technical level, and achieved good results

2. The contradiction between the recycling management and recycling technology of plastic packaging waste and social environmental protection is prominent

(1) the recycling of waste has become an important topic for the production and development of products that are easy to be processed into various shapes and structures by plastic packaging enterprises. The increase of plastic packaging waste, especially primary packaging materials and foam lunch boxes, has become a major problem in urban and rural environmental governance. There is still a lack of perfect methods for waste recycling management, and the reuse technology is in the development stage, which is not yet fully mature. Therefore, treating this problem scientifically has become an important topic for the production and development of plastic packaging enterprises. Taking Shanghai as an example, the key to the fact that the foam lunch box can be far away from the sight of Shanghai citizens in just a few years is to play the role of economic leverage. According to the regulations, the manufacturer shall pay 3 cents of environmental emission (recycling) fee for each foamed lunch box, and pay 1 cent to the recycler for each one. As a result, the recovery rate of foamed lunch boxes has increased significantly. A total of 220million foamed lunch boxes were recovered in Shanghai in 2002, and 98million from January to June 2003

at present, the top priority is to call for the introduction of waste recycling management regulations as soon as possible. The key is to solve the recycling of waste plastics. Who produces and packs them, who is responsible for recycling

(2) developing plastic wood composites is the main method of plastic waste recycling. According to the information of the 7th International WPC annual meeting in 2003, the sales of WPC made from waste plastics and wood waste increased at an average annual rate of 25%. The recycling of waste plastics has become the research focus of countries all over the world. Technically, graft copolymers are used to effectively bond plastic and wood waste, making it possible to realize industrial production of waste plastics and wood waste materials (WPC)

(3) the health and safety problems of plastics need supervision and management. Plastic packaging materials are mostly used for food and beverage packaging, so the health and safety of plastic is closely related to the health of consumers. In recent years, the Ministry of health, the National Bureau of standards and other relevant departments have formulated and issued some health and safety standards for plastic materials, such as the hygienic inspection methods for PP resin of food packaging materials, the hygienic standards for PE, PP, PS molded products, the professional standards for calendered PVC hard films for food, the provisional hygienic standards and inspection methods for PVC, etc., but this work needs to be strengthened and improved, Moreover, there must be some specific measures to implement the standards and a management organization to strengthen the implementation to supervise the implementation and ensure the interests of consumers

(4) develop degradable plastics to reduce pollution. Discarded plastic packaging containers, bottles, waste films, bags and other places are littered and piled up, which is bound to cause social hazards. In order to reduce pollution, degradable plastics are recommended for these products

(5) the promotion experience of Shenzhen outsourcing association is worth learning from. Shenzhen Packaging Association has established and organized a joint group of Shenzhen to promote the use of degradable plastics, formulated the articles of association and code of action of the group, and followed the principle of "when it is mature, one company will publish one company, when it is mature, one product will be identified, and one product will be promoted", The first batch of products promoted by Shenzhen Zhongbao Maoda Environmental Biochemistry Co., Ltd. and Tianjin no harm to learn about the screw rods of the electronic tensile testing machine. There are several differences between the products of the Shenzhen Branch of the Danhai company, and good results have been achieved

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