Gu Minda said that China's use of wastepaper and treatment in the 1970s by a simple cooking, ease, after the beating, papermaking or for washing with toilet paper and low-grade cardboard box copy. To the 1980s, waste paper recovery rate has reached 25%, a few manufacturers can also produce de-inked pulp. After 90 years of the 20th century, some of the larger paper companies has introduced from abroad, including production line, including deinking equipment and technology, and deinking agents and deinking equipment were targeted improvement and innovation, making China utilization of recovered paper processing technology and equipment assembly level to the full development.
Some larger companies use cardboard production and the introduction of imported waste paper deinking equipment and technology to produce high-end products. Guangzhou Paper Co., Ltd., China Paper Co., Ltd. and Fujian Nanping Paper Co., Ltd. as the representative of the enterprise were introduced from abroad deinking line or main equipment, flotation - Integrated washing method, to deal with old newspapers and old magazines. Guangzhou and Fujian Nanping Paper Co. paper mill in recycled pulp with Newsprint.
After some domestic research units and research and development of production units deinking technology and equipment, the use of their existing conditions, innovation, production of small quantities of waste paper recycled pulp to be successful. Xuchang, Henan, Jiaozuo, Sui, Xinxiang and other places and other manufacturers using imported AOCC copy paper with high-strength corrugated cardboard boxes and the effect is significant. Domestic equipment manufacturers and chemical production, research units, cooperation through research on the device performance, chemical quality is also achieved good effect
Liaoyang Paper Machinery Factory and Fujian Light Industry Machinery Plant research paper processing equipment to form a complete system has been successfully put into production. Some Paper Machinery Factory Shandong also produces different types of deinking equipment, manufacturers have been purchased to use. There Fujian and Paper Research Institute, Hangzhou Institute of Chemical Engineering, Tianjin University of Science and Technology research and development units of various types of deinking agent has been authorized users. In recent years, the developed countries paid great attention to recycling and reuse of resources, and to develop into a set of "recycling" and "re-create" an independent industry body - recycling industry. With China's sustained and rapid economic growth, energy and resource scarcity, increasing pressure on the economic and social development bottleneck constraints have become increasingly prominent. "Recommendations of the Tenth Five-Year Plan of National Economy and Social Development" should be made to accelerate the construction of resource-saving and environment-friendly society, promoting economic development and population, resources and the environment. Vigorously develop the recycling industry is an effective way to solve the problem of shortage of resources in China, but also the development of recycling economy, establish a conservation-oriented society, the inevitable choice.
In 2008, a Chinese renewable resource utilization message recycling association release said that since the third quarter of 2008, the international financial crisis quickly spread to the real economy, the manufacturing sector shrinking lead to decreased demand for raw materials, the domestic steel industry, non-ferrous metal processing enterprises as well as paper, plastic and other enterprises cut, cut, some companies suffered heavy losses, the emergence of the phenomenon of bankruptcy, has shown a downward trend in raw material prices. Under its influence, the domestic renewable resources, weak market, prices plummeted more than 50%, 80% recycling outlets closed their doors renewable resources recycling decreased by 70%, resulting in environmental pollution and waste of resources, renewable resources industry is facing an unprecedented crisis.
Overall, China's recycling of waste materials of smaller companies, less than 50 small businesses account for a large part of it. Although the situation is grim, the prospects for the recovery and processing of waste materials still attractive.
At present the main waste classification
Since the domestic waste recovery rate is low, the amount of waste paper recycling trash is too small, resulting in a waste classification is not strict class
Currently divided into the following varieties:
Book, books, brown paper, book block, white, binding edge of the paper, yellow paperboard, gray cards, new newspapers, old newspapers, newsprint, coated paper, paper cup, Tetra Pak, page
1, the book block: book, not used in the book, you need to reach a certain thickness.
2 books: used books, regardless of the extent of use.
3, kraft paper: yellow, are more tension, generally used for packaging.
4, the book block: book, cover and remove the remaining adhesive paper (non-coated paper, and is in black and white, not color).
5, white: pure white, clean, no film.
6, binding edge of the paper: A cut of book printing side of the paper, copperplate and a small amount of plastic head; there are words.