The utilization and disposal of waste paper in China in the 1970s was through simple cooking, sizing, beating, and washing, and was used to copy or match toilet paper and low-grade boxboard. By the 1980s, the recycling rate of waste paper had reached about 25%, and a few manufacturers could also produce deinked pulp. After entering the 1990s, some large and medium-sized paper-making enterprises have successively introduced de-inking equipment including production lines from abroad to carry out targeted improvements and innovations, enabling China's waste paper processing technology and equipment assembly levels to be fully developed.
1. Some of the larger cardboard production companies use imported waste paper and imported deinking equipment and technology to produce high-end products. For example, Shanghai Hongwen Paper, Fujian Qingzhou Paper Mill, Liaoji Technology Paperboard Factory, Anhui Wuhu Oriental Board Paper Mill, etc., use imported waste corrugated boxes and use recycled pulp treated by thermal dispersion or cold-sieving as the core and bottom layer pulp. On the production of red or original improved cardboard, the production of kraft boxboard and blending paper bag paper and other varieties. Not only the quality is high, but also the imported corrugated paper contains adhesives and impurities that affect the production and is prone to paper diseases. It can also effectively handle and ensure the normal operation of production.
2. Enterprises represented by Guangzhou Paper Co., Ltd., Zhonghua Paper Co., Ltd. and Nanping Paper Mill have imported deinking production lines or main equipments from foreign countries, and adopted the float-washing comprehensive method to handle picking paper and old magazine paper. The Guangzhou Paper Mill and Nanping Paper Mill used copying newsprint paper with recycled pulp. Ningbo Zhonghua Paper Co., Ltd. uses waste paper recycled pulp and bottom pulp, and produces coated white paperboard. Both have achieved good results.
3. Some domestic research institutes and production units have cooperated to research and develop de-inking technologies and equipment. After utilizing the company's existing innovation and transformation, the production of small-lot waste paper recycled pulp has been successful. For example, Guangdong Zhongfa Paper Factory cooperates with the China Pulp and Paper Research Institute to produce newsprint with 100% old newspapers. Manufacturers in Xuchang, Jiaozuo, Jixian, and Xinxiang of Henan Province use imported AOCC and other waste papers to copy high-strength corrugated paper and Boxboards are very effective.
4. Small and medium-sized enterprises such as Fuzhou No. 2 Paper Mill and Nanning Xinyang Paper Mill use domestic equipment and technology to dispose of old newspapers and old paperboard to produce toilet paper and low-grade white paperboard. Hebi Paper Mill in Henan Province slightly modified the original equipment and used old newspapers to produce recycled newsprint. Xuchang, Yanshi's papermaking street, uses waste paper to produce toilet paper. Some paper mills in Xinmi City have obtained good results from the use of domestic old cartons to produce middle- and low-end products such as boxboard and kraft liner paper.
5. The domestic equipment manufacturers and chemical production and research units have achieved good results in equipment performance and chemical quality through cooperation. For example, Hangzhou Light Industry Research Institute cooperated with Zhejiang Xinshi Paper Mill to develop a small waste paper treatment process and waste paper deinking system. The waste paper processing equipment researched by Liaoyang Paper Machinery Plant and Fujian Light Industry Machinery Plant has formed a series of successful submissions. Some papermaking machinery factories in Shandong also produced different types of deinking equipment. There are also various deinking agents researched and developed by Fujian Papermaking Institute, Hangzhou Chemical Research Institute, and Tianjin University of Science and Technology, which have also been recognized by users.
Industry insiders have made several suggestions on how companies can properly recycle and use waste paper:
1. When purchasing raw materials for waste paper, it should be strictly controlled. In particular, imported waste paper, in the current supply of more channels, unpredictable operating methods, we must act with caution. The enterprise must conduct a thorough examination of the operating waste paper supplier to understand the true status of the business unit, the source and supply of the supply and sales, the economic strength, and the degree of credit, etc., choose a credit-worthy supply partner, and agree to supply the goods, so as to avoid being deceived, resulting in There should be frequent losses.
2. For enterprises with considerable scale, strong financial strength and strong technical force, they can import foreign existing corrugated cardboard boxes, old magazine papers, and old newsprint papers, as well as the existing foreign deinking technologies including production lines. And equipment, production of high-quality recycled pulp, alternative wood pulp fiber, production of high-grade multi-variety products. This will not only be conducive to environmental governance, but also significantly increase the efficiency. For enterprises that already have straw pulp alkali recovery, they can also use imported waste paper recycled pulp to add straw pulp and commercial wood pulp, and copy high-grade cultural articles in proportion, which can reduce the pollution load, save pollution control costs, and reduce production costs.
3. For paper mills that have been shut down or have no hope of shutting down for pollution control, a small amount of funds can be invested to improve the original equipment. The use of domestic waste paper to produce low-grade toilet paper, ordinary corrugated paper, or recycled newsprint can also be used. The distribution of domestic and imported waste pulp with medium-to-high grade products will likely lead to a vicious circle of raw material shortages and difficulties in pollution control.
4. When purchasing waste paper, the company shall use its own equipment, technology, and production categories to classify and use it. Can use imported corrugated cardboard boxes, AOCC waste paper to produce high-grade foil cardboard, high-strength corrugated paper and paper bag paper, or as core pulp and bottom layer pulp for the production of white paperboard; use waste newspapers and add 30% of old magazine paper, after screening-washing After comprehensive deinking, the production of newsprint or white cardboard core activities and bottom lining; the use of imported office waste paper, such as copy paper, computer printing paper, etc., choose a new deinking method, improve the paper machine or introduce On the production line, the production of high-grade sub-culture printing paper; the purchase of domestic waste paper can be in the improvement of the paper machine or the introduction of the production line, the production of high-grade cultural printing paper; the purchase of domestic waste paper can produce middle and low gear box Cardboard and toilet paper. At the same time, in the use of waste paper to recycle paper, attention should be paid to the use of chemical additives to enhance the physical strength of paper products and other indicators.
5. Domestic machinery manufacturers, chemical manufacturers, paper-making companies, scientific research institutes and other related companies united to jointly develop advanced deinking equipment and deinking agents, enhancers and other chemicals, and continuously improve the use of waste paper to recycle papermaking equipment. The adaptability of equipment level and paper variety promotes the rapid development of waste paper utilization.
1. Some of the larger cardboard production companies use imported waste paper and imported deinking equipment and technology to produce high-end products. For example, Shanghai Hongwen Paper, Fujian Qingzhou Paper Mill, Liaoji Technology Paperboard Factory, Anhui Wuhu Oriental Board Paper Mill, etc., use imported waste corrugated boxes and use recycled pulp treated by thermal dispersion or cold-sieving as the core and bottom layer pulp. On the production of red or original improved cardboard, the production of kraft boxboard and blending paper bag paper and other varieties. Not only the quality is high, but also the imported corrugated paper contains adhesives and impurities that affect the production and is prone to paper diseases. It can also effectively handle and ensure the normal operation of production.
2. Enterprises represented by Guangzhou Paper Co., Ltd., Zhonghua Paper Co., Ltd. and Nanping Paper Mill have imported deinking production lines or main equipments from foreign countries, and adopted the float-washing comprehensive method to handle picking paper and old magazine paper. The Guangzhou Paper Mill and Nanping Paper Mill used copying newsprint paper with recycled pulp. Ningbo Zhonghua Paper Co., Ltd. uses waste paper recycled pulp and bottom pulp, and produces coated white paperboard. Both have achieved good results.
3. Some domestic research institutes and production units have cooperated to research and develop de-inking technologies and equipment. After utilizing the company's existing innovation and transformation, the production of small-lot waste paper recycled pulp has been successful. For example, Guangdong Zhongfa Paper Factory cooperates with the China Pulp and Paper Research Institute to produce newsprint with 100% old newspapers. Manufacturers in Xuchang, Jiaozuo, Jixian, and Xinxiang of Henan Province use imported AOCC and other waste papers to copy high-strength corrugated paper and Boxboards are very effective.
4. Small and medium-sized enterprises such as Fuzhou No. 2 Paper Mill and Nanning Xinyang Paper Mill use domestic equipment and technology to dispose of old newspapers and old paperboard to produce toilet paper and low-grade white paperboard. Hebi Paper Mill in Henan Province slightly modified the original equipment and used old newspapers to produce recycled newsprint. Xuchang, Yanshi's papermaking street, uses waste paper to produce toilet paper. Some paper mills in Xinmi City have obtained good results from the use of domestic old cartons to produce middle- and low-end products such as boxboard and kraft liner paper.
5. The domestic equipment manufacturers and chemical production and research units have achieved good results in equipment performance and chemical quality through cooperation. For example, Hangzhou Light Industry Research Institute cooperated with Zhejiang Xinshi Paper Mill to develop a small waste paper treatment process and waste paper deinking system. The waste paper processing equipment researched by Liaoyang Paper Machinery Plant and Fujian Light Industry Machinery Plant has formed a series of successful submissions. Some papermaking machinery factories in Shandong also produced different types of deinking equipment. There are also various deinking agents researched and developed by Fujian Papermaking Institute, Hangzhou Chemical Research Institute, and Tianjin University of Science and Technology, which have also been recognized by users.
Industry insiders have made several suggestions on how companies can properly recycle and use waste paper:
1. When purchasing raw materials for waste paper, it should be strictly controlled. In particular, imported waste paper, in the current supply of more channels, unpredictable operating methods, we must act with caution. The enterprise must conduct a thorough examination of the operating waste paper supplier to understand the true status of the business unit, the source and supply of the supply and sales, the economic strength, and the degree of credit, etc., choose a credit-worthy supply partner, and agree to supply the goods, so as to avoid being deceived, resulting in There should be frequent losses.
2. For enterprises with considerable scale, strong financial strength and strong technical force, they can import foreign existing corrugated cardboard boxes, old magazine papers, and old newsprint papers, as well as the existing foreign deinking technologies including production lines. And equipment, production of high-quality recycled pulp, alternative wood pulp fiber, production of high-grade multi-variety products. This will not only be conducive to environmental governance, but also significantly increase the efficiency. For enterprises that already have straw pulp alkali recovery, they can also use imported waste paper recycled pulp to add straw pulp and commercial wood pulp, and copy high-grade cultural articles in proportion, which can reduce the pollution load, save pollution control costs, and reduce production costs.
3. For paper mills that have been shut down or have no hope of shutting down for pollution control, a small amount of funds can be invested to improve the original equipment. The use of domestic waste paper to produce low-grade toilet paper, ordinary corrugated paper, or recycled newsprint can also be used. The distribution of domestic and imported waste pulp with medium-to-high grade products will likely lead to a vicious circle of raw material shortages and difficulties in pollution control.
4. When purchasing waste paper, the company shall use its own equipment, technology, and production categories to classify and use it. Can use imported corrugated cardboard boxes, AOCC waste paper to produce high-grade foil cardboard, high-strength corrugated paper and paper bag paper, or as core pulp and bottom layer pulp for the production of white paperboard; use waste newspapers and add 30% of old magazine paper, after screening-washing After comprehensive deinking, the production of newsprint or white cardboard core activities and bottom lining; the use of imported office waste paper, such as copy paper, computer printing paper, etc., choose a new deinking method, improve the paper machine or introduce On the production line, the production of high-grade sub-culture printing paper; the purchase of domestic waste paper can be in the improvement of the paper machine or the introduction of the production line, the production of high-grade cultural printing paper; the purchase of domestic waste paper can produce middle and low gear box Cardboard and toilet paper. At the same time, in the use of waste paper to recycle paper, attention should be paid to the use of chemical additives to enhance the physical strength of paper products and other indicators.
5. Domestic machinery manufacturers, chemical manufacturers, paper-making companies, scientific research institutes and other related companies united to jointly develop advanced deinking equipment and deinking agents, enhancers and other chemicals, and continuously improve the use of waste paper to recycle papermaking equipment. The adaptability of equipment level and paper variety promotes the rapid development of waste paper utilization.