Develop corrugated box industry to realize green p

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Vigorously develop the corrugated box industry and realize green packaging. Corrugated box is a packaging and transportation box made of corrugated board. It is an essential packaging container. It has the characteristics of lightness, firmness, commodity protection and easy loading, unloading and transportation. It is widely used in transportation packaging of household appliances, textiles, food, etc. With the development of the commodity market, the number of carton packaging has increased year by year. In the past decade, the carton industry in Shanghai has increased at a rate of 30% every year

corrugated box is a very good packaging material. It can replace wood with paper and plastic with paper. In addition, paper materials can be recycled. It is a green packaging material. Therefore, it is favored by modern society that attaches importance to environmental protection 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 are still speeding up and keeping up with the rolling development

1. There is a serious gap in the corrugated base paper.

due to the rapid economic growth, the further development of the retail market and the improvement of the consumption level, it is estimated that the annual consumption of paper and paperboard in China will reach 50million tons by 2005, including 15million tons of corrugated paperboard. Compared with foreign countries, the corrugated base paper used in China is generally high quantitative, and there are very few high-strength corrugated base papers. Due to the lack of technical pulp and value-added paper, Many paper mills are not willing to produce high-strength corrugated base paper. They generally produce medium and low strength corrugated base paper, and the scale is small. Therefore, high-strength corrugated base paper can only be imported. There are not many corrugated base paper projects planned to be newly expanded in China. It is reported that in addition to Guangdong Jiulong and Zhejiang Jingxing 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, can not meet the requirements of users for increasing product quality. Therefore, high-strength corrugated base paper only relies heavily on imports. There are three main reasons for this situation: first, due to the low added value of corrugated base paper for a long time, domestic paper mills that produce packaging paperboard are generally optimistic about products with high added value and large 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 stimulated the demand for domestic high-strength corrugated base paper and kraft linerboard. 4. Frequency range: 0.1 20Hz growth. 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 towards the direction of low weight, high strength 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 the cost and reducing the quantity are the two main themes of the development of corrugated base paper

II. 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 paperboard can be processed into single-layer, three-layer, five layer, seven layer and nine layer corrugated paperboards, 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 gradually replaced wooden boxes and plastic boxes

based on the consideration of environmental protection and cost, the average quantity of corrugated board, including the quantity of box paper and corrugated base paper, must be reduced. Traditional corrugations include a, B, C, D and E, which are mainly used for cartons with high strength requirements. In recent years, F, N and G corrugations have appeared in the market. Their strength is much lower than that of traditional corrugations, and they are suitable for the use of low quantity corrugated base paper. At present, 90-115g/m2 corrugated base paper can be produced, and it is expected that 60-90g/m2 corrugated base paper will be produced in the future. Therefore, the quantity of corrugated board has been reduced from 1000-1100 g/m2 to 600 g/m2 at present. In some countries, the corrugated board is only 500 g/m2, while China's corrugated board is generally of high quantity, Therefore, a considerable amount of high-strength corrugated base paper has to be imported every year, which wastes a lot of resources

III. 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, nailing and packaging to form cartons. 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 various equipment with the whole corrugated board production process, connecting the whole corrugated board production process, and realizing automatic and continuous production. The produced corrugated board is flat, low in water content, straight in shape, good in quality and fast in speed, which provides a good quality assurance for the next process of carton forming

at present, it is impossible to estimate the specific number of corrugated box enterprises in China. There are nearly 10000 box enterprises with a certain scale. With the development of market economy, the competition is quite fierce, and the fittest is eliminated. Some licking box enterprises have developed rapidly and become large sales enterprises with a value of 100 million yuan, such as Shengda in Zhejiang, Shangfeng, Asia in Shanghai, Lianhe, Huali, Xinqing, Jifeng, Xiantai in Jiangsu, and nearly ten paper box enterprises with a value of 100 million yuan in Shanghai. After the adjustment of the internal structure of the industry, the Shanghai carton industry has implemented a new pattern of internal cooperative production of "centralized board making and decentralized box making". At present, most 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 large factories in terms of good quality of production lines, improves the startup rate of advanced equipment, but also gives full play to the advantages of small factories in terms of fast turnover, small batch The advantages of multiple specifications greatly reduce the loss of base paper, improve the economic benefits of both sides and achieve double profits. The traditional stand-alone production and single-sided corrugated board unit have been basically eliminated, and the whole industry has formed advanced productivity

since the 1980s, China has introduced advanced carton equipment from Japan, Italy and Taiwan. In the 1990s, China has introduced international advanced equipment from the United States, Germany, France and other developed countries, and then copied and gradually developed. Now it can produce more advanced corrugated cardboard production lines, water-based printing slotting machines, flat pressing die-cutting machines and other equipment. At present, the development of carton market has pointed out the direction for further developing carton equipment with high-grade, high-speed, high-efficiency, wide width and high-tech content. At present, there is still a considerable gap between the domestic corrugated board production line and the international level. It is necessary to formulate the din16901 standard for dimensional tolerance of plastic parts and the din16749 standard for dimensional tolerance of mold cavity in the German national standard for design structure, and continuously improve the 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 carton machinery and equipment manufacturers: first, the corrugated board production line should research and develop high-speed adsorption type corrugated rollers, 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 board in foreign countries and the actual needs of China, carton machinery and equipment manufacturers need to strengthen the development and production of micro corrugated rollers to promote the development of micro corrugated boxes in China. Third, equipment and machinery enterprises must adjust the production structure, overcome the "large and complete" production of all kinds of equipment, adopt the specialized mode, and achieve the business idea of concentrating efforts, striving for perfection, continuous improvement, continuous innovation and continuous development

IV. development of corrugated box printing

with the continuous development of society and the improvement of standard consumption standard, the printing of corrugated boxes must gradually develop towards the direction of high-grade, high-quality, multi-color and strong visual effect, and take color multi-color dot printing as the direction, that is, replace transportation packaging with commodity packaging, and replace box board ox card with white board ox card to achieve the characteristics of bright color, good gloss and beauty. 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 water-based printing slotting machine to achieve high speed, high efficiency and 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 in China and sold well at home and abroad. The improvement of printing quality is a very important aspect of the quality of the whole carton. If the die-cutting process is adopted for trimming, slotting, crimping and corner cutting, it will be more ideal to achieve tidiness, smoothness and beauty

v. development and improvement of corrugated cardboard

corrugated cardboard is usually used to make cartons, cartons, cushion liners, etc. According to the prediction of insiders, as the whole society attaches importance to environmental protection and paper packaging is a green packaging, it has not only use value, but also recycling value. In the future, a large number of commodities will use cartons and cartons for packaging, and the corrugated carton industry should broaden the service objects of cartons and cartons

1. the traditional service objects of corrugated box packaging are outer packaging and transportation packaging. We should actively know that tensile testing machines are generally physical data testing and development of new products, such as micro fine corrugated boxes, supermarket shelves and honeycomb paperboard, which are developed in both breadth and depth

2. corrugated box packaging should also be actively sold. The following is about the development of packaging components of impact testing machines. 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

3. Kraft linerboard transport packaging will gradually be replaced by the carton printed on the color surface of white kraft linerboard to realize the integration of internal and external packaging goods

therefore, the corrugated box packaging industry should transform its technical equipment as soon as possible, 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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