First, the development of pulp molding abroad
Papermaking has become a big industry in the world. All kinds of paper and paper products have penetrated into all aspects of people's lives, and pulp molded products have also developed in this environment. The pulp molding industry in some developed countries has a history of more than 80 years. At present, the pulp molding industry has reached a considerable scale in France, America, Japan, Canada, Iceland, Britain, Denmark, Singapore, the Netherlands and other countries. In the United States, the paper used in pulp molded products is basically waste paper, and the annual consumption is about 450,000 tons, which has increased at a rate of 40% every year since 1994, and has increased to 8 1 10,000 tons in 2000. Since 1989, about 600 factories in the United States have produced pulp, paper, paperboard and related products. Among them, 200 companies basically use waste paper as raw materials, and another 300 companies use waste paper 50% in the production process. The huge demand of pulp molding packaging makes it the third largest consumer industry of recycled paper.
Second, the development characteristics of foreign pulp molding
1. has a wide range of applications. Such as automobile industry, electronic products, hardware, consumer goods, medical equipment, household goods, office supplies and so on. Pulp molded products have even been applied to sales packaging.
2. Adopt computer-aided design method. The model of pulp molded products is designed by three-dimensional computer software, such as pro/Engineer and Solid—works. According to the data file of the design model, the rapid prototyping machine can be used to directly manufacture the molding die and product prototype. You can also transfer the data file to the manufacturing software Master cam, and directly process the tooling in the CNC machining center. At present, only a few domestic enterprises can master this technology.
3. Product design is standardized and modularized. In the production of pulp molded products, mold cost is one of the important costs. Foreign manufacturers should pay attention to the universality and good versatility in the design and application of pulp molding products. For example, the general liner, corner protector, partition board and so on. Due to the large production batch, high mold utilization rate and simple design, the amortization cost of molds will be greatly reduced.
4. Advanced production equipment and reasonable technology. Compared with China, it is characterized by adopting pressure drying technology, direct hot pressing molding, and no oven, which greatly reduces energy consumption; The machine is highly automated, almost fully automatic, saving energy and labor.
Third, the development of domestic pulp molding
The development of pulp molding industry in China has been nearly 20 years. Since 1980s, Hunan, Beijing, Shandong, Jiangsu and other places have introduced foreign pulp molding production lines to produce egg trays. 1984, Hunan Pulp Moulding General Factory invested more than RMB100000 to introduce a drum-type automatic pulp moulding production line from France, which was mainly used to produce egg trays. This is the beginning of pulp molding in China. At the end of 1980s, China began to research the pulp molding production line by itself. 1988, China developed the first domestic pulp molding production line, which mainly consisted of egg trays, beer trays and fruit trays, with single products and low grade. Since 1990s, molded pulp products have been used to package agricultural and sideline products, household appliances, electronic products, instruments and meters.
After 1994, the development of pulp molding industry has made a new leap. The large and medium-sized coastal cities in the Pearl River Delta region of Guangdong Province are concentrated in J, a manufacturer of pulp molded products lining packaging, and the production of egg trays is mainly concentrated in Hunan, Shandong, Henan, Beijing and other places; There are also a number of manufacturers who design and manufacture pulp molding equipment, such as Xiangtan pulp molding factory. According to incomplete statistics, there are more than 200 pulp molding products production and equipment, which are distributed all over the country.
Since 1994, with the influence of environmental protection policies at home and abroad and the enhancement of social environmental awareness, China has invested a lot of manpower and funds in the pulp molding industry. After hard work, the paper pulp was molded into fast food boxes, bowls, plates and so on. In line with the national conditions, the production equipment and technology, formula, hygiene and physical and chemical indicators of fast food boxes are highly required. With the strong support of relevant state departments and the efforts of scientific researchers, Chinese fast food box products have been continuously improved. China pulp molding production technology and equipment have reached the world advanced level in some performance indexes.
Fourth, the characteristics of domestic pulp molding development
The development characteristics of China pulp molding industrial packaging mainly include the following aspects:
1. The market of pulp molding and packaging materials is booming. By 2002, the Pearl River Delta, Yangtze River Delta, Beijing, Tianjin and Dalian have formed three pulp molding technology development centers in China, and the application of paper-plastic packaging products has spread all over major brand products. Especially since 200 1, related enterprises have increased by 20% every year. Once the national laws and regulations prohibiting the use of EPS are promulgated, the market demand for pulp molding industrial packaging will increase rapidly.
2. The packaging development of pulp molding industry is more advanced than that of pregnant silk.
Packaging high-value items with low-grade raw materials is the economic basis for packaging materials in pulp molding industry to get better returns. The industrial packaging of pulp molding generally uses carton scraps, old cartons and old newspapers as raw materials. Because of the high value of packaged goods, the internal packaging cost acceptable to customers is relatively high.
3. The entry threshold of pulp molding packaging is low but the technical requirements are high. Pulp mould
Industrial packaging projects have less capital investment and low technical content of equipment. In addition, there are many kinds of pulp molding used as industrial packaging materials, and generally, the continuous production time of each style of products will not be too long, so it is not easy for the same product to compete with each other at a lower price.
Furthermore, the geometric shape of industrial packaging pulp molded products is complex, and the volume of the same style is large after stacking and packaging, and the long-distance transportation cost is high, so it is not easy to appear cross-regional competition. However, it should be noted that each style of pulp molded products is a special new product, and it can only be formally mass-produced after going through the procedures of design, molding, sample preparation, testing and correction. In addition, profit has a great relationship with production technology and management level. Therefore, investors must think carefully. In addition to the capital problem, they should also consider product structure design, mold manufacturing, professional training, process formula and market development, and their overall technical requirements are higher.
Verb (abbreviation of verb) Problems in the development of pulp molding technology
1. According to the existing technology level, the thickness of pulp molded products is roughly between LMM and 60 mm, and the thickness of general products is about 2.5 mm ..
2. According to the current quality and use of pulp molded packaging products, its maximum bearing load can reach 150kg, which is the best choice to undertake the inner lining packaging of products with less complicated shape and weight within 50kg.
3. The quotation of pulp molded products is generally based on the shape, structure, volume and weight of the product, the raw materials used, the requirements of manufacturing technology, the output of the product, the types and values of packaging materials, etc. At present, it is commonly used to convert numerical values into unit weight, such as yuan/gram or yuan/ton. From the situation in East China, the general product price is between 9000 yuan/ton-10000 yuan/ton; The price of products with high requirements on appearance and size ranges from 2000 yuan/ton to 14000 yuan/ton.
4. The qualification rate of products and the reliability of production line in the packaging production process of pulp molding industry are big issues related to production costs. At present, the qualified rate of domestic models is about 85%-95%.