In 1999, Japan’s waste paper recycling reached the highest record as the consumption of papermaking raw materials, accounting for 30.7% in the paper manufacturing industry, 89.3% in the cardboard industry, and 56.1% of the total recycled paper. As the utilization rate of paperboard made from paperboard is approaching saturation, the expansion of the utilization rate of printed waste paper will become a new topic in the future. In the future, the mainstream of waste paper recycling will still be the production of paper and board, but if only used as raw materials for recycled paper and paperboard, the amount used will be limited. Therefore, expanding various ways of using waste paper will be an important issue.

At present, waste paper is used as raw materials for paper and paperboard. Industrial waste paper has been produced, mainly as packaging materials and solid fuels. The most promising is the use of waste paper pulp as molded products, such as eggs, fruits, and electrical appliances. Box of buffer material. Compared with expanded polystyrene, it has biodegradability and is beneficial to environmental protection; waste paper is used as a raw material for solid fuels, and its annual usage has exceeded 60,000 tons; it is used as heat insulation and sound insulation materials for house construction, and its The annual dosage is 8000-9000t; the annual amount of mat material used as a livestock ring is approximately 3000t; waste paper and plastics are mixed and hot-pressed out of various fiber-plastic products with an annual usage of 8000 tons; as the cover soil when treating waste, and the cover soil In contrast, as long as 1/5 of the thickness, you can effectively solve the problem of waste flying, odor and bird damage, and its annual usage can reach 25,000 tons. In addition, waste paper can also be used as a template, paving materials, waste water treatment materials. Some problems existing in the use of waste paper are wet crushing and energy consumption and waste water generation. Dry pulverization can cause fires and cause fires. The amount of plastic used in the manufacture of boards is large and the product strength is low. Although waste paper can be used in place of plastics and wood, However, its product performance is poor and needs further improvement before it is competitive. Due to hygiene requirements, waste paper can not be used as food packaging materials; in order to expand the use of waste paper, including the development and use of safe printing inks, waste paper is transformed into useful materials such as biological raw materials and energy through fermentation and other processing. Its use of new ways of exploitation, the use of waste paper should introduce high-tech or use its characteristics to develop new products.