As a person in the paper equipment industry, you must have an understanding of the various types of paper concepts. The following are the definitions of the various types of paper provided, and I hope to be helpful to newcomers in the industry.

Waste paper: It consists of a mixture of waste paper of different quality and is not limited by the packaging method or fiber composition. Miscellaneous items must not exceed 2%. The total amount of unqualified waste paper shall not exceed 10%. US Waste No. 3 Advanced waste paper: It consists of a mixture of different quality waste papers that have been sorted and packaged. The groundwood content of such waste paper (coated or uncoated) must not exceed 10%. Miscellaneous items shall not exceed 0.5%. The total amount of unqualified waste paper shall not exceed 3%.

Special old newspapers: Wasted newspapers that have been selected and not tidal, packaged and supplied. Such old newspapers are neither exposed to sunlight, nor are other miscellaneous waste papers mixed. The gravure and color printing portions do not exceed the normal number. No debris is allowed. The total amount of unqualified waste paper shall not exceed 2%.

Premium old newspaper (for deinking): a sort of waste newspaper that is selected and not tidal, packaged and supplied. Such old newspapers are not exposed to sunlight, and do not contain magazines, blank paper, printers, expired newspapers and other miscellaneous waste papers, and their gravure and color portions do not exceed normal quantities. Do not wrap in other paper. No debris is allowed. The total amount of unqualified waste paper shall not exceed 0.25%.