This "furnish", containing 99% water or more, is pumped into the headbox of the paper machine. From the headbox, the furnish is dispensed through a long, narrow "slice" onto the "wire", a moving continuous belt of wire or plastic mesh. (bulkmsm.com - Karl Loren)

If the process water is allowed to cycle up with contaminants and ink, the more difficult it is to produce clean, bright, good quality furnish. Getting these materials out of the mill system always improves the quality of the process water, which will further improve the production of quality recycled furnish and will reduce effluent loadings. (RISI, Inc.)

With better grades of paper, care is taken to produce a furnish that is chemically neutral (pH 7 on the acid-base scale). For a paper to have long life, it must be acid-free. (Net Industries and its Licensors)