In the 2nd century AD, a Chinese named Cai Lun invented papermaking. In the year 1800, the invention of the papermaking industry took place in an overwhelming change, and the technological innovation of papermaking chemicals contributed.
Since the reform and opening up, facing the huge gap in the paper industry, China's paper industry has developed rapidly. Up to now, large-scale paper mills with an annual output of more than one million tons, such as Guangdong Dongguan Kowloon Paper, Shandong Chenming Paper and Zhenjiang Jindong Paper have stood shoulder to shoulder to produce a wide variety of paper types. A large plant's production capacity can reach the total amount of papermaking in several provinces. The great development and large market of the paper industry must not only rely on papermaking chemicals, but also constantly put forward new requirements.
Xia Hualin, secretary-general of China Paper Chemical Industry Association, told reporters that the paper industry is actually a chemical processing industry using fiber as raw material. All stages of the whole process of pulping, bleaching, pulping, papermaking and post-processing are inseparable from the application of various chemicals. He said that according to a wide range, caustic soda and liquid chlorine used in papermaking should also be included in papermaking chemicals. However, currently referred to as papermaking chemicals refers to fine chemicals used in papermaking. Some of them can give paper a variety of special superior performance, some can use poorer fiber materials to produce thinner, whiter, and more reliable paper products, and some can increase production and reduce pollution in the production process, to papermaking Industry brings good economic benefits... These products have formed a brand-new fine chemical industry in our country.
Until 1994, China's papermaking chemicals have made great progress. Various new sizing agents, dry (wet) enhancers, retention aids (filters), dispersants, flocculants, defoamers, lubricants, coating adhesives, water repellents, flame retardants, softeners, waste paper Deinking agent and so on through research and development, has been widely used in paper mills. At present, the China Paper Chemical Industry Association has 256 member companies, including some major enterprises and institutions engaged in the research, development, production, and sales of papermaking chemicals.
Due to the important role of chemicals in papermaking, during the "Eighth Five-Year Plan" period, its research was listed as one of the national scientific and technological breakthroughs. In the past ten years, nearly 100 items of papermaking chemicals that were developed in China have passed the appraisal, and have won national and provincial and municipal science and technology progress awards, and some have applied for invention patents. Among them, the performance of the multi-variant modified starch series products developed by the Hangzhou Institute of Chemical Industry (Chemical Industry National Paper Chemicals Engineering Technology Center) has reached the leading level in China, and a 10,000-ton production company has been completed. The AKD neutral sizing agent developed by the Chengdu Institute of Chemistry, the Chinese Academy of Sciences and the Jinan Chemical Research Institute, and the PC-1 acrylic-benzene emulsion coating adhesive developed by Beijing Dongfang Chemical Factory (now Orient Acryle Technology Co., Ltd.), Beijing Chemical Industry Research Institute The company developed coating dispersants, polyacrylamide series products of Guangzhou Nanzhong Fine Chemicals Company, series of fungicides developed by General Senate Chemical Protection Institute (Beijing Changhua Fine Chemicals Factory), Changchun Chemical Institute of Chinese Academy of Sciences, Shanghai Chemical Industry Research Institute and other units. Developed long fiber dispersants, paper wet enhancers WS-1, emulsion rosin sizing agent series, waste paper deinking agent series, and paper flame retardants developed by the National Paper Chemical Engineering Technology Center of the Chemical Industry. Production application.
In recent years, new varieties of papermaking chemicals have emerged in China, and a large number of papermaking chemicals companies have emerged. In order to adapt to the new situation after China's accession to the WTO, various domestic research institutes, universities and papermaking chemical production enterprises face the development trend of large-scale production, high-grade products, and production cleanliness in the paper industry, and pay attention to scientific research and technological innovation. Great progress has been made. The Chemical Industry (National) Papermaking Chemical Engineering Technology Center (Hangzhou Institute of Chemical Industry) won 5 national invention patents and 5 state-level key new products in 2002. “Non-wood fiber modified starch products for papermaking†was obtained in Zhejiang Provincial Science and Technology Progress Award, China Petroleum and Chemical Industry Association Technology Invention Award. At the same time, the huge prospects of China's papermaking chemicals market have attracted many investors and manufacturers. Many of the world's top 500 companies have set up factories in China to produce papermaking chemicals, such as Bayer AG of Germany, BASF, and Aksu of the Netherlands. Nobel company and so on.
In 2004, the output of paper and board in China reached 49.5 million tons, an increase of 15.1% over the previous year, and the consumption amounted to 54.39 million tons, an increase of 13.2% over the previous year. Both output and consumption were only It ranks second in the world after the United States. Although the growth rate of paper production exceeds the growth rate of consumption for the first time, the space for the development of papermaking industry in China is still very broad in the coming decade, providing a rare opportunity for the development of China's papermaking chemicals industry. This opportunity and the increasingly open market, the competition of world-renowned companies, and so on, also put forward higher requirements for our paper-making chemicals companies in terms of output scale, process continuity protection and so on.
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