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Problems faced by the development of corrugated boxes in China

corrugated boxes are packaging and transportation boxes made of corrugated board. They are essential packaging containers to encourage relevant enterprises, scientific research institutions and colleges and universities to establish a new mode of combining production, learning and research. They are light, strong, protect goods, and easy to load, unload and transport. They are widely used in transportation and packaging of household appliances, textiles, food, etc. With the rapid development of the market for auto parts made of carbon fiber composites, the number of carton packaging is increasing year by year. The carton industry in Shanghai alone has increased at a rate of 30% every year in the past decade. At present, domestic carton sales are still growing at a rapid rate - carton sales reached 8billion square meters in 1996, 12.5 billion square meters in 2000, 20billion square meters in 2002, an increase of 1.5 times in six years. Corrugated paper is a very excellent packaging material, which can replace wood with paper, and plastic with paper. In addition, paper materials can be recycled. It is a green packaging material, so it is in line with the direction of environmental protection, favored by modern society, and has a good development prospect. The development of carton industry will inevitably drive the development of paper industry, machinery manufacturing industry and auxiliary material industry. From this point of view, corrugated base paper and machinery manufacturing still need to speed up and keep up with the rolling development

the corrugated base paper gap is serious

due to the rapid economic growth, the further development of the retail market and the improvement of consumption level, it is estimated that China's annual consumption of paper and paperboard will reach 50million tons by 2005, including 15million tons in the corrugated paper market. Compared with foreign countries, the corrugated base paper used in China is generally high quantitative, and only a large number of imports. China plans to expand a few new corrugated base paper projects. It is reported that in addition to Guangdong Jiulong and Zhejiang Jingxing, two new high-strength corrugated base paper projects, there will be a gap of at least 1million tons by 2005. At present, the import of high-strength corrugated base paper is still growing

at present, the supply of high-strength corrugated base paper in China is insufficient, and the demand is large. The existing corrugated base paper supply system, which mainly focuses on medium and low-grade products, cannot meet the requirements of users for the increasing quality of products, so high-strength corrugated base paper only relies heavily on imports. There are three main reasons for this: first, due to the low added value of corrugated base paper for a long time, domestic paper mills producing packaging paperboard are generally optimistic about products with high added value and high demand such as Kraft linerboard and whiteboard, resulting in few projects of corrugated base paper planned to be newly expanded. Second, the rapid development and improvement of domestic paper product packaging has driven the demand growth of domestic high-strength corrugated base paper and kraft linerboard. Third, the international market for corrugated base paper has been weak recently, with supply exceeding demand, while China's high-strength corrugated base paper market is in short supply. From the perspective of market demand, it is a major trend that the domestic development of high-strength corrugated base paper must develop in the direction of low quantity, high speed and full specification. The demand for medium and high strength corrugated base paper is large, and the price of corrugated base paper will rise. At present, reducing cost and reducing quantity are the two major themes of the development of corrugated base paper

development direction of corrugated paperboard

corrugated paperboard is formed by bonding face paper, lining paper, core paper and corrugated core paper processed into wavy shape. According to the requirements of commodity packaging, corrugated cardboard can be processed into single-layer, three-layer, five layer, seven layer, nine layer corrugated cardboard, and then printed, slotted or die-cut to form cartons. In recent ten years, according to the needs of environmental protection and the requirements of relevant national policies, the commodity packaging of corrugated boxes has a trend of gradually replacing wooden boxes and plastics

based on the consideration of environmental protection and cost, the average ration of corrugated board, including carton paper and corrugated base paper, must be reduced. Traditional corrugated has types A, B, C, D and E, which are mainly used for cartons with high strength requirements. In recent years, F, N and G-type corrugated paper have been produced on the market. Their strength is much lower than that of traditional corrugated paper, which is suitable for the use of low quantity corrugated base paper. Now it can produce g/m2 corrugated raw potatoes, and it is expected that g/m2 corrugated base paper will be produced in the future. Therefore, the quantity of corrugated board has also been reduced from the original g/m2 to the current 600 g/m2. In some countries, the corrugated board is only 500 g/m2, while China's corrugated board is generally high quantity, so it is not necessary to import a considerable amount of high-strength corrugated base paper every year, Waste a lot of resources

corrugated board machinery manufacturing

at present, there are generally three types of corrugated board and corrugated box production equipment in China. First, the traditional single machine is a single production process, which requires more than ten processes such as batching, cutting, splicing, printing, tile rolling, laminating, slitting, slotting, corner cutting, nail box and so on. This process has been basically eliminated in developed areas such as Guangdong, Jiangsu and Zhejiang, Shanghai, Beijing and Tianjin. The second is the single-sided corrugated machine set, which was developed in the late 1980s in China. It is a great progress to replace the traditional single machine to produce corrugated board. It is suitable for small and medium-sized carton enterprises. Its production efficiency and product quality are one step higher than that of single machine, and it has strong adaptability. With the development of corrugated board production line, the production efficiency and product quality of corrugated single-sided unit are one step behind. The third is the corrugated board production line, which is characterized by organically combining the whole corrugated board production process with various equipment, connecting the whole corrugated board production process, and realizing automatic and continuous production. The corrugated board produced is flat, low in water content, crisp in shape, good in quality and fast in speed, which provides a good quality assurance for the next process after the carton forming. At present, the specific number of corrugated box enterprises in China cannot be estimated. There are nearly 10000 carton enterprises with a certain scale. With the development of the market economy, the competition is quite fierce, and the survival of the fittest. Some carton enterprises have developed rapidly and become major sellers with a sales value of 100 million yuan, such as Shengda and Shangfeng in Zhejiang, Asia, United, Huali, Xinqing, Jifeng in Shanghai, Xiantai in Jiangsu, etc. there are nearly ten carton enterprises with a sales value of 100 million yuan in Shanghai. After the adjustment of the internal structure of the industry, Shanghai carton industry has implemented the new pattern of internal cooperative production of "centralized board making and decentralized box making". At present, the vast majority of small carton enterprises purchase corrugated board from large factories with corrugated board production lines. The industrial division of labor has overcome the "small and comprehensive" production mode, which not only gives full play to the advantages of good quality of large factory production lines, improves the startup rate of advanced equipment, but also gives full play to the advantages of fast turnover, small batch The advantage of multiple specifications greatly reduces the loss of base paper, improves the economic benefits of both sides, and realizes double profits. The traditional stand-alone production and single-sided corrugated board units have been basically eliminated, and the production efficiency of the whole industry has been continuously improved

since the 1980s, China has introduced advanced carton equipment from Japan, Italy and Taiwan. In the 1990s, it introduced international advanced equipment from developed countries such as the United States, Germany and France, and then copied and gradually developed. Now it can produce more advanced corrugated board production lines, water-based printing slotting machines, flat pressing die cutting machines and other equipment. At present, the development of carton market requires further development of carton equipment with high-grade, high-speed, high-efficiency, wide width and high-tech content. However, there is still a considerable gap between the domestic corrugated board production line and the international level, which requires continuous improvement in the design structure, production speed, electrical appliances, steel materials and processing accuracy. It should be possible to catch up with the international advanced level in another 10 years. It is suggested that manufacturers of carton machinery and equipment should, first, study and develop high-speed adsorption corrugated rollers for corrugated board production lines, improve the stability of equipment operation, reduce failures, and appropriately limit the manufacturing of single-sided corrugated machines with low technical content, high consumption and low efficiency. Second, in the face of the rapid development of micro corrugated cardboard abroad and the actual needs of our country, carton machinery and equipment manufacturers need to strengthen the development and production of micro corrugated rollers to promote the development of micro corrugated cardboard in our country. Third, equipment and machinery enterprises must adjust the production structure, overcome the "large and comprehensive", adopt a professional model, and achieve the business ideas of concentration, excellence, continuous improvement, continuous improvement, continuous innovation and continuous development

development of corrugated box printing

with the continuous development of society and the improvement of people's consumption level, the printing of corrugated boxes must gradually develop in the direction of high-grade, high-quality, high color and strong visual effect, and take color multi-color dot printing as the direction, that is, commodity packaging instead of transportation packaging, and white board ox card instead of box board ox card, so as to achieve the characteristics of bright color, good gloss and beauty. In order to meet the above standards, higher requirements are put forward for plate making and printing ink. For plate making of medium and high-grade carton printing, flexible version must be used instead of rubber version, and high-quality water-based ink must be used to achieve gloss, bright color, fast drying and adapt to high-speed production. In addition to plate making and printing ink, higher requirements are put forward for the water-based printing slotting machine to achieve high speed, high efficiency, multi-color, and the accurate error of chromatic registration is plus or minus 0.5 mm. The printing slotting machine has made great progress and improvement in China. The water-based printing slotting machine produced by Shanghai Dinglong and Guangdong Dongfang has reached the advanced level and sold well at home and abroad. The improvement of printing quality is an important aspect of the quality of the whole carton, such as trimming, slotting, crimping and corner cutting. Die cutting technology is adopted to achieve tidiness, smoothness and beauty

development and improvement of corrugated cardboard

corrugated cardboard is usually used to make cartons, cartons, cushion liners, etc. According to the prediction of insiders, with the whole society paying attention to environmental protection, paper packaging belongs to green packaging, which not only has use value, but also uses recycling value. In the future, a large number of goods will be packaged in cartons and cartons, and the corrugated box industry should expand the service objects of cartons and cartons

first, the traditional service objects of corrugated box packaging are outer packaging and transportation packaging. We should actively develop new products, such as micro fine corrugated box, supermarket shelf, honeycomb paperboard, from both breadth and depth

second, corrugated paper packaging should also actively develop to sales packaging. With the development of Commerce and the improvement of consumers' living standards, the market demand for corrugated boxes with high intensity and good advertising functions is increasing day by day, and the demand for exquisite printing is increasing

Third, kraft linerboard transport packaging will gradually be replaced by Cartons printed on white kraft linerboard, realizing the integration of inner and outer packaging goods

therefore, the corrugated box packaging industry should speed up the transformation of technical equipment, so that China's corrugated box industry can be based on a large packaging country and strive to develop from a large packaging country to a powerful packaging country

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