Development status and application of packaging pa

2022-09-23
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Development status and application of the world packaging paper industry in recent years, with the rapid development of packaging and printing technology, the packaging paper industry in the United States has shown a good trend of continuous growth: advanced technology has been more widely used, productivity has been further improved, and the total business volume has also continued to increase. In particular, the growth rate of folding cartons, flexible packaging and label printing has significantly exceeded that of other processing departments

Minnesota liberty Paper Co., Ltd. developed m-guard screen wet paperboard, which looks like corrugated paperboard and is similar to commonly used lined paperboard. It can be printed, recycled and then beaten. The board achieves good moisture shielding performance through its internal absorption. An American company has also developed a paper that can convert solar energy into heat energy, which can act as a solar collector. Using this kind of heat preservation paper to package food, put it in the sunshine, and the food in the package will be heated. Only when the package is opened, the heat can be dissipated

the packaging paper industry in South Korea is also developing rapidly, and the production of paper products is growing. According to the data of the Korea Paper Industry Association, the domestic consumption of packaging paper in South Korea in 2002 was 7.348 million tons, an increase of 4.2% over 2001; The export volume was 2.378 million tons, accounting for 25% of the total production. In 2003, the output of packaging paper in South Korea exceeded 10million tons, setting a record

in Russia, packaging paper with lower weight and better strength is widely used. In 2002, the consumption of kraft wrapping paper in Russia was 316000 tons. It is estimated that by 2007, its consumption will reach 390000 tons, an increase of nearly 25% over 2002, Qiao Jinliang said. On the one hand, the growth of kraft packaging paper is due to the increased demand for a large number of high-quality building materials, which drives the consumption of high-quality Kraft packaging paper; On the other hand, the continuous improvement of product quality has promoted the export volume of Russian Kraft packaging paper

1 packaging paperboard

the world packaging paperboard Market demand will increase at a rate of 2.8% per year. It is expected that by 2010, the market demand will reach 125 million tons, and the production will be relatively concentrated. Eastern Europe, the Middle East, Asia and Latin America are the regions with the fastest growing demand for packaging cardboard in the world. In the global output of packaging board, North America accounts for 39%, Western Europe 21%, Asia 28%, Latin America 6%, Eastern Europe 3%, and the rest is Africa and Oceania. In terms of production equipment, Nordic countries and Oceanian countries have the most modern large-scale packaging cardboard machines; Eastern Europe, Latin America and African countries retain small old-fashioned equipment. It is expected that North America and Western Europe will continue to maintain the leading position in the production of packaging paperboard in the future. The output before 2010 will still account for 45% of the global total output, and continue to become the main export region of the world's packaging paperboard

2 cartons and cartons

in recent years, the demand for paper packaging has declined due to the extrusion of plastic packaging in the packaging market in Europe and the United States. According to statistics, the demand for carton base paper and folding carton in the United States in 2002 decreased by 6.3% and 2.6% respectively compared with 2001. In the past four years, the American corrugated packaging Federation spent $2.3 million annually on the promotion and standardization of cartons and cartons, but this situation remains unchanged. In Europe, the prospect of paper packaging is not optimistic. At present, retailers are increasingly enthusiastic about using "reusable plastic lattice boxes". According to a survey of the food retail industry in the European market, the use of plastic lattice boxes in Britain, France and Germany is about 30million tons, 15million to 16million tons and 40million tons respectively. It is estimated that 21million tons of corrugated packaging market share will be replaced by plastic lattice boxes in 2005, with a replacement rate of five times that of 2002

German enterprises have put forward three new requirements for the corrugated boxes used for the packaging of Chinese exported food. These requirements are: the outer box cannot have wax paper or oil isolation paper; Try to seal the box with glue, not PVC or other plastic tape. If plastic tape has to be used, it should also be used without pe/pb; The outer carton cannot be nailed or clamped with any metal or plastic nails, but can only be glued on all sides

3 new packaging paper

3.1 foam paper

German PSP company has developed a new process for the production of foam paper, and the packaging materials produced by it can replace foam plastic. This kind of foam paper uses old book scrap paper and flour as raw materials. First, the recycled old books and newspapers are cut into pieces, and then made into pulp. It is mixed with flour in the ratio of 2:1. The mixed paper slurry is injected into the extruder and pressed into cylindrical particles with a capacity of 600million ampere hours next year. During the extrusion process, the raw material becomes foam paper under the action of steam. Using the foam paper particles as raw materials, various shapes of foam packaging paper can be produced according to different needs. Foam paper can be formed at one time without chemical additives, and can be recycled and processed after use

3.2 propylene synthetic paper

Japanese experts have made a kind of synthetic paper from propylene in petroleum gas. This paper ground is strong, not easy to crack, smooth surface, no wrinkles, not afraid of moisture, and will not change color. This kind of paper is lighter than ordinary paper and is not easy to get dirty. It is a good material for printing, writing and food packaging

3.3 special paper for food packaging

European and American countries have begun the research and production of special paper for food packaging, and have taken a lead. For example, the brand-new plmex special paper for food packaging uses 100% pure pulp, does not contain fluorescent agents and chemicals harmful to human body, and has the characteristics of waterproof, oil-proof, viscosity resistant and heat-resistant. It is easy to use, simple to clean, safe and hygienic, and conforms to the food hygiene standards of FDA and BGA in Germany. This kind of special paper for food can be recycled after being washed with clean water and can be reused for 50 times. Food paper can be rolled or pressed into various paper cup shapes. Polyurethane elastic materials are widely used in automotive interiors. Whether they are used for steaming, baking or microwave heating, they will not deform and fade

among the special paper for food, food insulation packaging paper is urgently needed. The function of this paper is to keep cooked food fragrant, fresh and hot after packaging, so that people can eat it conveniently in different places and times, so as to meet the needs of today's fast-paced life. The principle of this kind of insulation paper is like a solar collector, which can convert light energy into heat energy. Usually people only need to put this special paper in a place where the sun can shine, and the space surrounded by the paper will be constantly supplemented with heat, so as to keep the food in the paper hot, so that people can eat delicious food at any time

3.4 special paper for drug packaging

the survey shows that the global drug packaging market increased by 4.2% in 2003, reaching an output value of 11.2 billion US dollars. The United States, Japan, Britain, Germany, France and Italy will occupy the largest market share of the world's pharmaceutical packaging industry, while China has become the fastest-growing region. At present, paper is mainly used for drug packaging, because its moisture resistance and protective performance are not ideal. On the other hand, cartons used for sandwich packaging are also facing fierce competition from heat shrinkable plastic packaging. Taking 10 boxes or 10 bottles of sandwich packaging as an example, the cost of using heat shrinkable plastic packaging is 3 ~ 7 cents, but carton packaging costs 0.5 ~ 2 yuan. In short, the market share of carton packaging in the field of pharmaceutical packaging is rapidly decreasing. However, in the next few years, carton is still a mainstream packaging form for sheet drugs. The tear able carton packaging with protective function is expected to gain wider market popularity

3.5 stainless steel packaging paper

the "stainless steel rust proof packaging paper" developed by relevant institutions in Qinhuangdao City, Hebei Province, China has obtained a national patent. The production process of rust proof paper is non-toxic and pollution-free, and there is no need to change the equipment and conditions of the original paper mill. At present, the most commonly used packaging paper to prevent metal corrosion includes gas-phase type and contact type, but the average hardness tester has poor accuracy and sensitivity, and it belongs to general-purpose metal antirust paper. The main principle of "stainless steel anti rust packaging paper" is to add "stainless steel rust inhibitor" to the "paper base" used for stainless steel material packaging, so that the packaging paper can prevent the corrosion of stainless steel. This kind of wrapping paper is not only suitable for stainless steel plates, but also for antirust packaging of wires, materials, parts and appliances

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