[Abstract] The shortage of packaging paper and paperboard has caused the paper packaging products to fail to meet market demand and cannot adapt to the development of the national economy. Therefore, we must vigorously develop packaging paper and paperboard. To speed up the development of packaging paper and board, the key is to ensure the supply of paper materials. This article discusses starting and making use of wood resources, making full use of waste paper resources, and appropriately developing non-wood fiber raw materials.
First, China's paper packaging products can not meet the market demand The advancement of science and technology in the world today has brought about an increasingly modern and scientific packaging of goods, which greatly promoted the development of the world packaging industry. Since the reform and opening up, China's packaging industry has developed rapidly, especially in recent years. The total output value of China's packaging industry has reached 126 billion yuan in 1996, an increase of 177.53% over 1990, with an average annual increase of 18.55%. Despite this, China's packaging industry still can not meet the needs of the national economy and the international market. Whether it is the quality of raw and auxiliary packaging materials, the level of packaging products, or the level of export goods packaging, there is a big gap, resulting in the structure of packaging products can not meet market demand .
In particular, with the development of production and the enrichment of social life, the supply of high-quality high-quality paper packaging products is in short supply, and the demand for newsprint, advertising paper, cultural paper, decorative paper, and packaging paper is increasing. According to preliminary forecasts, by the year 2000, the total consumption of newsprint in the country will reach 1.1 million tons or more, with an average annual increase of 7.2%; the national print and paper consumption will reach 26 million tons, an average annual increase of 5%; the consumption of general printing and writing paper It will reach 4.2 million tons, and household paper will also grow at a rate of 8% to more than 1.8 million tons. In the packaging paper, such as composite packaging paper, coated paper, coated paper, paint board paper, high-gloss cardboard, etc., the demand gap is growing, the development of advertising industry has increased the consumption of coated paper, high-end packaging and decoration of goods Increased the amount of paint whiteboard paper. Therefore, China's paper packaging products should be based on market demand, adjust the product structure, appropriate development of offset printing newsprint, offset printing paper, high-grade paint whiteboard paper, middle-grade living paper, information paper, food packaging, kraft paperboard and other short-term products, focus To develop relief products such as letterpress paper, offset printing and coated paper (ie, coated paper), white paperboard, and cigarette paper, so that the product structure of paper packaging products can meet the demands of market gentrification.
Second, the shortage of packaging paper and paperboard According to the UN Food and Agriculture Organization of the United Nations, between 1992 and 1997, the annual average growth rate of paper and board production capacity in the world was 2%, and the output increased by 29 million tons, of which the growth rate of newsprint was 1.6%, an increase of 300. Ten thousand tons; printing and writing paper increased 10 million tons, an increase of 2.3%; other paper and paperboard increased 16 million tons, an increase of 1.9%. Due to the strong economic development momentum and low labor cost in most Asian countries, the average annual growth rate of paper and paperboard is 4-7%.
From the published global output of new paper, this year's paper supply will grow by 3.5%-4%, while consumer demand is estimated to increase by only 1%-2%. The global paper product oversupply and the average price will decline slightly. . However, this year's economic growth in the United States and Asia will drive the paper product market to flourish, and the core market for products will be shifted from Europe and the United States to Asia.
According to the analysis of macroeconomic departments, the demand for paper in the Asian market will increase by 4%-5% annually. The demand growth rate in China will reach 6%-7%. After 2000, the demand for paper and paperboard will exceed that of Japan. It has become the largest paper country in Asia. At present, the per capita paper consumption in China is 20 kg, which is estimated to increase to 30 kg in five years. The population of our country has a net increase of 10 million each year. By 2002, the population will reach 1.3 billion, and the demand for paper and board will reach 39 million tons in five years.
The Planning and Development Department of the China National Light Industry Council has formulated the overall plan for the future development of 15 young people. The development plan for the paper industry is: during the Ninth Five-Year Plan period, the production capacity of paper and paperboard will be increased to 30 million tons per year. The production capacity increased to 40 million tons per year. The actual production of paper and board in China in 1990-1995 is shown in Table 1.
From Table 1, it can be seen that the production of paper and board in China has increased year by year, with an average annual increase of 8.92% between 1990 and 1995. If the annual output of paper and paperboard in 1995 is increased by 8.92% on the basis of 21 million tons, by 2002, the total The output is about 38 million tons. Although it can complete the paper industry plan, it still cannot fully meet the market demand and the gap is about 800,000 tons.
Paper and cardboard are the basis of paper packaging products. In the total amount of paper and paperboard, packaging paper and paperboard account for about half. China's paper packaging products can not meet the market demand. The main reason is that the demand for packaging paper and paperboard, the raw material of paper packaging products, is increasing, and the demand exceeds supply, although it accounts for 70 percent of the total paper and board in China. About %, but due to the fact that the actual production of paper and board in China cannot meet the market demand, there is a gap, resulting in the shortage of packaging paper and paperboard.
According to foreign trade departments, 50-60% of China's export product packaging materials are cardboard, of which 90% are dependent on imports. Due to the poor quality of domestic products, the import of pulp and paper in China has grown rapidly in recent years. See Table 2 for related indicators.
From Table 2, it can be seen that in 1995 China's pulp imports were 824,000 tons, an increase of 59.57% over 1993, with an average annual increase of 26.32%. The import of waste paper also increased from 609,700 tons in 1993 to 906,000 tons in 1995, a total increase of 50.07%, an average annual increase of 22.5%. In 1995, the total amount of paper and paperboard imports reached 3.029 million tons. Although it decreased compared to 1994, it still increased by 25.83% over 1993, with an average annual increase of 12.17%. For this reason, the state has consumed a lot of foreign exchange. In 1996, when it was used to import pulp and paper, it used 1.31 billion yuan of foreign exchange.
Visible, China's packaging paper and paperboard varieties, quality can not meet the needs of national economic development, high-quality products in short supply, the country needs to spend a lot of foreign exchange import high-grade paper and cardboard. At the same time, there are a considerable number of low-grade products that are not on the road. Therefore, the application categories and product grades of packaging paper and board in China need to be improved.
3. Actively develop papermaking raw material resources and vigorously develop paper and paperboard for packaging paper and paperboard packaging To meet the needs of the development of the national economy, its application categories and product grades need to be improved and must be accelerated. In order to develop packaging paper and paperboard, it is of vital importance to ensure the supply of papermaking raw materials and actively develop papermaking raw material resources.
(1) Develop and make good use of timber resources to increase the proportion of pulp and paper.
Over the years, China's paper industry mainly uses non-wood fiber as papermaking raw materials, and wood pulp accounts for less than 20% of the entire pulping industry. In most countries of the world, papermaking raw materials are mainly wood, and non-wood fiber pulp products worldwide are only 7.5%, of which China's non-wood fiber pulp products accounted for 62.4%. This raw material structure in China will affect the quality of paper and board products, hinder the development of high-end quality products and the development of the entire paper industry.
In order to make the paper industry healthy, wood pulp should be used more. Wood pulp raw materials come from wood, and China's forest coverage rate is only 13.9% of the country's land area, forest resources, an area of ​​128630000 hectares, living standing stock volume of 10.868 billion cubic meters. The total amount of pulpwood resources is insufficient, which requires us to increase pulp slurry yield in the production process, strive to increase the utilization rate of forest resources, save existing timber resources, and must also develop new resources. In the long run, we should vigorously develop forestry and accelerate the cultivation of fast-growing and high-yielding forest bases suitable for papermaking. In particular, hardwood trees such as beech, poplar, and birch have short production cycles, and the quality of papermaking is high and can be vigorously developed.
China's forests are mainly distributed in the northeast, southeast, south and west regions and are mainly operated by the Ministry of Forestry. In the process of harvesting, timbering, processing, and nurturing of these forest areas, tens of millions of cubic meters of residues (including needles and broadleaves) cannot be used every year. If a forestry-paper joint enterprise is established, these abandoned residues can be saved. With full use of the material, the utilization rate of forest resources can reach more than 90%. Through various efforts, by 2000, the proportion of wood pulp in China's papermaking raw materials will increase to 18%.
(B) make full use of waste paper resources, improve waste paper recovery and utilization.
Waste paper is a renewable resource for the paper industry. Making full use of waste paper is the only way to develop the paper industry. For China, which has insufficient timber resources, waste paper recycling is particularly important. According to the UN Food and Agriculture Organization of the United Nations (FAO) projections, in 1995, the proportion of pulp and paper in the world accounted for 32% of the total volume of pulp, and by the year 2000 it will increase to 34.4%. In fact, with the development of the paper industry, the utilization rate of waste paper has been increasing. In 1993, the total amount of waste paper used in the world was 93.263 million tons, and the total utilization rate of waste paper was 37.1% (the ratio of waste paper pulp to total pulp); 1994 The total annual utilization of 135 million tons, according to the slurry rate of 80%, can be made of 108 million tons of recycled pulp. The utilization rate of waste paper in the world has increased from 30% in 1989 to the current 40%, and is expected to reach 50% by the year 2000. Table 3 shows the statistics of waste paper recycling and utilization in the world's 11 major countries and regions in 1994.
From Table 3, it can be seen that the amount of waste paper recovered and used in the United States ranks first in the world, and the proportion of the world’s waste paper accounts for 34.13% and 26.58%, respectively. According to the statistics of the US Forest and Paper Association, there are 145 waste paper recycling companies in the United States. In 1995, the amount of waste paper recovered in the United States was nearly 40 million tons, of which more than 20 million tons were used for domestic papermaking raw materials and more than 10 million tons were used for export. Corrugated cartons (OCCs) account for a large proportion of weight. Germany's waste paper recycling rate is as high as 60.8/%, while China's only 22%, far below the world's 38.9% level. The waste paper utilization rate in Taiwan Province of China reaches 100%, while the utilization rate of waste paper in Mainland China is only 28.3%. Compared with the world waste paper utilization rate of 38.7%, the gap is not small. China's paper industry has developed rapidly, and papers from 1990 to 1995 have been developed rapidly. The output of paperboard and paperboard are increasing at an average annual rate of 8.92%. Waste paper recycling has more potential to be excavated, which is very favorable for improving the quality level of paper and board and reducing environmental pollution.
Reasonable use of imported waste paper, the use of imported wood pulp 20% -30%, straw pulp 30% -40% and import waste pulp 40% to match the production of high-quality kraft board, can reach the level of foreign countries. Pulp packaging material is suitable for any shape of goods, can effectively protect the goods, more and more people use it to package industrial products, electronic equipment and a variety of fragile goods. Pulp packaging materials are 100% made from waste paper and can be reused completely and biodegradable. It can be seen that the recycling of waste paper is of vital importance to the paper industry. According to a U.S. publication, the construction of a paper mill using waste paper as a raw material is 50% to 80% less than the cost of building a factory using paper pulp.
(3) Moderately develop non-wood fiber raw materials and ease the shortage of papermaking raw materials.
China has abundant cotton stalk resources, which are mainly distributed in Shandong, Shanxi, Henan, Jiangxi and other places. It is estimated that there are more than 10 million tons annually. According to the chemical composition and fiber morphology of the cotton stalk, the cellulose content of the cotton stalk varies from 40% to 60%, the lignin content ranges from 16% to 22%, and the cotton stalk occupies 30 percent of the cotton stalk. About 35% or so, the pectin content is high, the average fiber length is 2.26% mm, and the cotton core fiber is short, the average length is 0.83 mm (hardwood fiber length 1.2 mm, straw 1.3 mm, straw 0.9 mm) . Cotton stalks are used as raw materials for papermaking. The quality of the cotton stalks can exceed that of straws and wheat straws. They can be made into durable kraft paper and industrial packaging paper. Generally, 6 kraft papers or 350 kg packaging paper can be produced per ton of cotton stalks. In the high-end packaging color paper, can save a lot of imported wood pulp, there is a great future for development. Therefore, in the cotton, concentrated production areas such as Shanxi, Guizhou, Shandong, and Henan, it is necessary to develop and utilize cotton stalk resources to provide more packaging materials for the packaging industry in China.
The whole material of kenaf can be made into pulp and paper. During the “Ninth Five-Year Plan†period, Jiangxi Province Bast Fiber Research Institute has cultivated a new variety of kenaf 86-4 that can be used for all-rod pulping and papermaking. The Institute cooperated with Yichun Paper Mill to produce a high-white punnet pulp with a bleached pulp rate of 42.8%-43.9%, using 100% kenaf pulp or 80% kenaf pulp with 20% imported needles. Leaf wood pulp can be made into offset printing paper and newsprint, and the product quality has reached the ministerial standard. Compared with bamboo, Hongma Paper not only has low purchase cost, but also consumes less coal. According to statistics, generally one ton of bamboo pulp is required to produce 4 tons of bamboo, while a ton of hemp pulp requires only 2.3-2.5 tons of whole hemp jute, and one ton of hemp bleaching pulp, at a cost of 1,924.78 yuan per ton, and Kenaf has strong adaptability and is not suitable for soil selection, and can be planted on hills, dry lands, and barren slopes. If urea can be used for pulping and papermaking, it will not only reduce the shortage of papermaking raw materials, but also increase the income of farmers and promote the adjustment of the agricultural industry structure.
First, China's paper packaging products can not meet the market demand The advancement of science and technology in the world today has brought about an increasingly modern and scientific packaging of goods, which greatly promoted the development of the world packaging industry. Since the reform and opening up, China's packaging industry has developed rapidly, especially in recent years. The total output value of China's packaging industry has reached 126 billion yuan in 1996, an increase of 177.53% over 1990, with an average annual increase of 18.55%. Despite this, China's packaging industry still can not meet the needs of the national economy and the international market. Whether it is the quality of raw and auxiliary packaging materials, the level of packaging products, or the level of export goods packaging, there is a big gap, resulting in the structure of packaging products can not meet market demand .
In particular, with the development of production and the enrichment of social life, the supply of high-quality high-quality paper packaging products is in short supply, and the demand for newsprint, advertising paper, cultural paper, decorative paper, and packaging paper is increasing. According to preliminary forecasts, by the year 2000, the total consumption of newsprint in the country will reach 1.1 million tons or more, with an average annual increase of 7.2%; the national print and paper consumption will reach 26 million tons, an average annual increase of 5%; the consumption of general printing and writing paper It will reach 4.2 million tons, and household paper will also grow at a rate of 8% to more than 1.8 million tons. In the packaging paper, such as composite packaging paper, coated paper, coated paper, paint board paper, high-gloss cardboard, etc., the demand gap is growing, the development of advertising industry has increased the consumption of coated paper, high-end packaging and decoration of goods Increased the amount of paint whiteboard paper. Therefore, China's paper packaging products should be based on market demand, adjust the product structure, appropriate development of offset printing newsprint, offset printing paper, high-grade paint whiteboard paper, middle-grade living paper, information paper, food packaging, kraft paperboard and other short-term products, focus To develop relief products such as letterpress paper, offset printing and coated paper (ie, coated paper), white paperboard, and cigarette paper, so that the product structure of paper packaging products can meet the demands of market gentrification.
Second, the shortage of packaging paper and paperboard According to the UN Food and Agriculture Organization of the United Nations, between 1992 and 1997, the annual average growth rate of paper and board production capacity in the world was 2%, and the output increased by 29 million tons, of which the growth rate of newsprint was 1.6%, an increase of 300. Ten thousand tons; printing and writing paper increased 10 million tons, an increase of 2.3%; other paper and paperboard increased 16 million tons, an increase of 1.9%. Due to the strong economic development momentum and low labor cost in most Asian countries, the average annual growth rate of paper and paperboard is 4-7%.
From the published global output of new paper, this year's paper supply will grow by 3.5%-4%, while consumer demand is estimated to increase by only 1%-2%. The global paper product oversupply and the average price will decline slightly. . However, this year's economic growth in the United States and Asia will drive the paper product market to flourish, and the core market for products will be shifted from Europe and the United States to Asia.
According to the analysis of macroeconomic departments, the demand for paper in the Asian market will increase by 4%-5% annually. The demand growth rate in China will reach 6%-7%. After 2000, the demand for paper and paperboard will exceed that of Japan. It has become the largest paper country in Asia. At present, the per capita paper consumption in China is 20 kg, which is estimated to increase to 30 kg in five years. The population of our country has a net increase of 10 million each year. By 2002, the population will reach 1.3 billion, and the demand for paper and board will reach 39 million tons in five years.
The Planning and Development Department of the China National Light Industry Council has formulated the overall plan for the future development of 15 young people. The development plan for the paper industry is: during the Ninth Five-Year Plan period, the production capacity of paper and paperboard will be increased to 30 million tons per year. The production capacity increased to 40 million tons per year. The actual production of paper and board in China in 1990-1995 is shown in Table 1.
From Table 1, it can be seen that the production of paper and board in China has increased year by year, with an average annual increase of 8.92% between 1990 and 1995. If the annual output of paper and paperboard in 1995 is increased by 8.92% on the basis of 21 million tons, by 2002, the total The output is about 38 million tons. Although it can complete the paper industry plan, it still cannot fully meet the market demand and the gap is about 800,000 tons.
Paper and cardboard are the basis of paper packaging products. In the total amount of paper and paperboard, packaging paper and paperboard account for about half. China's paper packaging products can not meet the market demand. The main reason is that the demand for packaging paper and paperboard, the raw material of paper packaging products, is increasing, and the demand exceeds supply, although it accounts for 70 percent of the total paper and board in China. About %, but due to the fact that the actual production of paper and board in China cannot meet the market demand, there is a gap, resulting in the shortage of packaging paper and paperboard.
According to foreign trade departments, 50-60% of China's export product packaging materials are cardboard, of which 90% are dependent on imports. Due to the poor quality of domestic products, the import of pulp and paper in China has grown rapidly in recent years. See Table 2 for related indicators.
From Table 2, it can be seen that in 1995 China's pulp imports were 824,000 tons, an increase of 59.57% over 1993, with an average annual increase of 26.32%. The import of waste paper also increased from 609,700 tons in 1993 to 906,000 tons in 1995, a total increase of 50.07%, an average annual increase of 22.5%. In 1995, the total amount of paper and paperboard imports reached 3.029 million tons. Although it decreased compared to 1994, it still increased by 25.83% over 1993, with an average annual increase of 12.17%. For this reason, the state has consumed a lot of foreign exchange. In 1996, when it was used to import pulp and paper, it used 1.31 billion yuan of foreign exchange.
Visible, China's packaging paper and paperboard varieties, quality can not meet the needs of national economic development, high-quality products in short supply, the country needs to spend a lot of foreign exchange import high-grade paper and cardboard. At the same time, there are a considerable number of low-grade products that are not on the road. Therefore, the application categories and product grades of packaging paper and board in China need to be improved.
3. Actively develop papermaking raw material resources and vigorously develop paper and paperboard for packaging paper and paperboard packaging To meet the needs of the development of the national economy, its application categories and product grades need to be improved and must be accelerated. In order to develop packaging paper and paperboard, it is of vital importance to ensure the supply of papermaking raw materials and actively develop papermaking raw material resources.
(1) Develop and make good use of timber resources to increase the proportion of pulp and paper.
Over the years, China's paper industry mainly uses non-wood fiber as papermaking raw materials, and wood pulp accounts for less than 20% of the entire pulping industry. In most countries of the world, papermaking raw materials are mainly wood, and non-wood fiber pulp products worldwide are only 7.5%, of which China's non-wood fiber pulp products accounted for 62.4%. This raw material structure in China will affect the quality of paper and board products, hinder the development of high-end quality products and the development of the entire paper industry.
In order to make the paper industry healthy, wood pulp should be used more. Wood pulp raw materials come from wood, and China's forest coverage rate is only 13.9% of the country's land area, forest resources, an area of ​​128630000 hectares, living standing stock volume of 10.868 billion cubic meters. The total amount of pulpwood resources is insufficient, which requires us to increase pulp slurry yield in the production process, strive to increase the utilization rate of forest resources, save existing timber resources, and must also develop new resources. In the long run, we should vigorously develop forestry and accelerate the cultivation of fast-growing and high-yielding forest bases suitable for papermaking. In particular, hardwood trees such as beech, poplar, and birch have short production cycles, and the quality of papermaking is high and can be vigorously developed.
China's forests are mainly distributed in the northeast, southeast, south and west regions and are mainly operated by the Ministry of Forestry. In the process of harvesting, timbering, processing, and nurturing of these forest areas, tens of millions of cubic meters of residues (including needles and broadleaves) cannot be used every year. If a forestry-paper joint enterprise is established, these abandoned residues can be saved. With full use of the material, the utilization rate of forest resources can reach more than 90%. Through various efforts, by 2000, the proportion of wood pulp in China's papermaking raw materials will increase to 18%.
(B) make full use of waste paper resources, improve waste paper recovery and utilization.
Waste paper is a renewable resource for the paper industry. Making full use of waste paper is the only way to develop the paper industry. For China, which has insufficient timber resources, waste paper recycling is particularly important. According to the UN Food and Agriculture Organization of the United Nations (FAO) projections, in 1995, the proportion of pulp and paper in the world accounted for 32% of the total volume of pulp, and by the year 2000 it will increase to 34.4%. In fact, with the development of the paper industry, the utilization rate of waste paper has been increasing. In 1993, the total amount of waste paper used in the world was 93.263 million tons, and the total utilization rate of waste paper was 37.1% (the ratio of waste paper pulp to total pulp); 1994 The total annual utilization of 135 million tons, according to the slurry rate of 80%, can be made of 108 million tons of recycled pulp. The utilization rate of waste paper in the world has increased from 30% in 1989 to the current 40%, and is expected to reach 50% by the year 2000. Table 3 shows the statistics of waste paper recycling and utilization in the world's 11 major countries and regions in 1994.
From Table 3, it can be seen that the amount of waste paper recovered and used in the United States ranks first in the world, and the proportion of the world’s waste paper accounts for 34.13% and 26.58%, respectively. According to the statistics of the US Forest and Paper Association, there are 145 waste paper recycling companies in the United States. In 1995, the amount of waste paper recovered in the United States was nearly 40 million tons, of which more than 20 million tons were used for domestic papermaking raw materials and more than 10 million tons were used for export. Corrugated cartons (OCCs) account for a large proportion of weight. Germany's waste paper recycling rate is as high as 60.8/%, while China's only 22%, far below the world's 38.9% level. The waste paper utilization rate in Taiwan Province of China reaches 100%, while the utilization rate of waste paper in Mainland China is only 28.3%. Compared with the world waste paper utilization rate of 38.7%, the gap is not small. China's paper industry has developed rapidly, and papers from 1990 to 1995 have been developed rapidly. The output of paperboard and paperboard are increasing at an average annual rate of 8.92%. Waste paper recycling has more potential to be excavated, which is very favorable for improving the quality level of paper and board and reducing environmental pollution.
Reasonable use of imported waste paper, the use of imported wood pulp 20% -30%, straw pulp 30% -40% and import waste pulp 40% to match the production of high-quality kraft board, can reach the level of foreign countries. Pulp packaging material is suitable for any shape of goods, can effectively protect the goods, more and more people use it to package industrial products, electronic equipment and a variety of fragile goods. Pulp packaging materials are 100% made from waste paper and can be reused completely and biodegradable. It can be seen that the recycling of waste paper is of vital importance to the paper industry. According to a U.S. publication, the construction of a paper mill using waste paper as a raw material is 50% to 80% less than the cost of building a factory using paper pulp.
(3) Moderately develop non-wood fiber raw materials and ease the shortage of papermaking raw materials.
China has abundant cotton stalk resources, which are mainly distributed in Shandong, Shanxi, Henan, Jiangxi and other places. It is estimated that there are more than 10 million tons annually. According to the chemical composition and fiber morphology of the cotton stalk, the cellulose content of the cotton stalk varies from 40% to 60%, the lignin content ranges from 16% to 22%, and the cotton stalk occupies 30 percent of the cotton stalk. About 35% or so, the pectin content is high, the average fiber length is 2.26% mm, and the cotton core fiber is short, the average length is 0.83 mm (hardwood fiber length 1.2 mm, straw 1.3 mm, straw 0.9 mm) . Cotton stalks are used as raw materials for papermaking. The quality of the cotton stalks can exceed that of straws and wheat straws. They can be made into durable kraft paper and industrial packaging paper. Generally, 6 kraft papers or 350 kg packaging paper can be produced per ton of cotton stalks. In the high-end packaging color paper, can save a lot of imported wood pulp, there is a great future for development. Therefore, in the cotton, concentrated production areas such as Shanxi, Guizhou, Shandong, and Henan, it is necessary to develop and utilize cotton stalk resources to provide more packaging materials for the packaging industry in China.
The whole material of kenaf can be made into pulp and paper. During the “Ninth Five-Year Plan†period, Jiangxi Province Bast Fiber Research Institute has cultivated a new variety of kenaf 86-4 that can be used for all-rod pulping and papermaking. The Institute cooperated with Yichun Paper Mill to produce a high-white punnet pulp with a bleached pulp rate of 42.8%-43.9%, using 100% kenaf pulp or 80% kenaf pulp with 20% imported needles. Leaf wood pulp can be made into offset printing paper and newsprint, and the product quality has reached the ministerial standard. Compared with bamboo, Hongma Paper not only has low purchase cost, but also consumes less coal. According to statistics, generally one ton of bamboo pulp is required to produce 4 tons of bamboo, while a ton of hemp pulp requires only 2.3-2.5 tons of whole hemp jute, and one ton of hemp bleaching pulp, at a cost of 1,924.78 yuan per ton, and Kenaf has strong adaptability and is not suitable for soil selection, and can be planted on hills, dry lands, and barren slopes. If urea can be used for pulping and papermaking, it will not only reduce the shortage of papermaking raw materials, but also increase the income of farmers and promote the adjustment of the agricultural industry structure.
Screen Printing Machine Co., Ltd. , http://www.nsprintingmachines.com