Production status and suggestions of the most popu

2022-10-24
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Production status and suggestions of waste paper in China

the utilization and treatment of waste paper in China was used to make or match toilet paper and low-grade cardboard after simple cooking, dredging, beating and washing in the 1970s. By the 1980s, the recovery rate of waste paper had reached 1. It could also be used in the compressive strength test of other materials/4. A few manufacturers could also produce deinking pulp. Some units also studied and discussed deinking equipment and deinking chemicals and achieved certain results. After entering the 1990s, some large and medium-sized paper-making enterprises in China have successively introduced deinking equipment and Technology (including production lines) from abroad, and made targeted improvements and innovations in waste paper deinking agents and waste paper deinking equipment, so that China's waste paper utilization and treatment technology and equipment assembly level can be comprehensively developed

1. Some large cardboard production enterprises use imported waste paper and imported deinking equipment and technology to produce high-grade products. For example, Shanghai Hongwen Paper Co., Ltd., Fujian Qingzhou Paper Mill, Liaoyang craft paper mill, Anhui Wuhu Dongfang board paper mill, etc. use the imported waste corrugated boxes, and use the recycled pulp treated by the thermal dispersion method or cold screening method as the core and bottom pulp to produce Kraft linerboard and papermaking bag paper on the imported production line or the original improved paper machine. Not only the quality is high, but also the adhesives and impurities in the imported old corrugated paper that affect production and are easy to cause paper disease can be effectively treated, ensuring the normal operation of production

2. Enterprises represented by Guangzhou Paper Co., Ltd., Zhonghua Paper Co., Ltd. and Nanping Paper Mill, respectively, introduced deinking production lines or main equipment from abroad and adopted a comprehensive flotation washing method to treat old newspapers and magazine paper. Guangzhou paper mill and Nanping Paper mill use recycled pulp to make paper, while Ningbo Zhonghua Paper Co., Ltd. uses recycled pulp of waste paper as core pulp and bottom pulp to produce coated white paperboard, which has achieved good results

3. Some domestic research and production units have cooperated to research and develop deinking technology and equipment. After innovation and transformation using the existing conditions of the enterprise, the production of small batch of recycled pulp of waste paper has been successful. For example, Guangdong Zhongshan Zhongfa paper factory cooperates with China pulp and paper research institute to produce paper with 100% old newspapers. Manufacturers in Xuchang, Jiaozuo, suixian County, Xinxiang and other places in our province can call our company's service via import A. OCC and other waste paper can be used to make high-strength corrugated paper and carton board with remarkable results

4. Small and medium-sized enterprises such as Fuzhou No.2 paper mill and Nanning Xinyang paper mill use domestic equipment and technology to produce toilet paper and low-grade white paperboard after treating old newspapers and old paperboard. Hebi paper mill in Henan Province slightly reformed its original equipment and produced recycled paper from domestic old newspapers, which solved the pressure of all employees being laid off. The papermaking street in Xuchang and Yanshi uses domestic waste paper to produce toilet paper, and some paper mills in Xinmi use domestic old cartons to produce medium and low-grade products such as cardboard and kraft tissue paper, which have achieved good benefits

5. Domestic equipment manufacturers and chemical production and research units have also achieved good results in equipment performance and chemical quality through cooperation. For example, Hangzhou Light Industry Research Institute has cooperated with Zhejiang Xinshi paper mill to develop a small waste paper treatment process and waste paper deinking system. The waste paper treatment equipment studied by Liaoyang paper machinery factory and Fujian Light Industry Machinery Factory has formed a supporting series and has been successfully put into production. Some paper machinery factories in Shandong also produce different types of deinking equipment for equipment, which have been purchased and used by manufacturers. In addition, various deinking agents developed by Fujian paper institute, Hangzhou Institute of chemical industry, Tianjin Institute of light industry (now renamed Tianjin University of science and Technology) and other units have also been recognized by users

in a word, waste paper recycling and utilization are the general trend of the development of the world's paper industry, especially in Henan Province, where wood resources are scarce and water pollution is serious. Whether it is a paper mill that has been shut down or is about to be shut down, an enterprise that has claimed to meet the pollution control standards by using chemical pulping and papermaking, or a unit that has blindly purchased waste paper due to false investigation and failed to meet the conditions for trial production, it should change the old concept and establish the determination and confidence to use waste paper to make red from reality. Adhering to the implementation is a feasible way for the survival and revitalization of enterprises. To avoid mistakes. The following suggestions are put forward for reference

1. Strictly control the purchase of waste paper raw materials. In particular, imported waste paper, in the current situation of more supply channels and unpredictable business means, we should be more cautious. We must conduct a comprehensive examination of the waste paper suppliers to understand the real situation, supply and marketing sources and history, economic strength and reputation of the business unit. Choose reliable supply partners and supply goods by agreement, so as to avoid being cheated and causing undue economic losses

2. For enterprises with considerable scale, strong financial strength and strong technical force, while purchasing foreign old corrugated boxes, old magazine paper and old paper, they can also introduce foreign existing deinking technology and equipment (including production lines) to produce high-quality recycled pulp, replace wood pulp fibers, and produce high-grade multi variety products. It is not only conducive to environmental governance, but also can significantly increase benefits. For enterprises that have already recovered straw pulp alkali, they can also use imported waste paper recycled pulp to add straw pulp and commercial wood pulp, and prepare high-grade stationery in proportion. It can not only reduce pollution load, save pollution control costs, but also reduce production costs

3. For paper mills that have been shut down or have no hope of pollution control and are about to shut down, a small amount of money can be invested to slightly improve and transform the original equipment. Domestic waste paper can be used to produce low-grade toilet paper, ordinary corrugated paper or recycled paper, and domestic and imported waste pulp can also be used to make medium and high-grade products. It will be possible to get out of the dilemma of shortage of raw materials and difficult pollution control and turn to a virtuous circle

4. Some papermaking enterprises use waste paper, especially imported waste paper, which is a new attempt. Therefore, when purchasing waste paper, they should use it according to their own equipment conditions, technical strength and production varieties. Imported corrugated boxes and AOCC waste paper can be used to produce high-grade carton board, high-strength corrugated paper and paper bag paper, or as the material for the core pulp and bottom pulp of white paperboard; Using waste newspapers to add about 30% of the old magazine paper, after flotation washing comprehensive deinking, produce paper or as white paperboard to speed up the cultivation and development of new generation information technology, high-end equipment, modern marine and new energy vehicles and other strategic emerging industries core pulp and bottom lining pulp; Use imported office waste paper, such as copy paper, computer printing paper, etc., and select new deinking methods to produce high-grade cultural printing paper on improved paper machines or imported production lines; For the purchased domestic waste paper, we can produce low-grade and medium-grade cardboard and toilet paper. At the same time, we should pay attention to the use of chemical additives to enhance the physical strength of paper products

5. Domestic machinery manufacturers, chemical manufacturers and paper-making enterprises, scientific research institutes and other relevant units jointly develop advanced deinking equipment and deinking agents, reinforcing agents and other chemicals, constantly improve the level of equipment and equipment for recycling paper from waste paper and the adaptability of paper varieties, and promote the rapid development of waste paper utilization

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