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UNDERMENTIONED SECTOR
Paper Manufacturing Industries

A paper mill is a factory devoted to making paper from vegetable fibres such as wood pulp, old rags and other ingredients using a Fourdrinier machine or other type of paper machine.

By the early 20th century, paper mills sprang up around New England and the rest of the world, due to the high demand of paper. At this time, there were many world leaders of the production of paper; one of such was the Brown Company in Berlin, New Hampshire run by William Wentworth Brown. During the year 1907, the Brown Company cut between 30 to 40 million acres of woodlands on their property, which extended from La Tuque, Quebec, Canada to West Palm, Florida.

“Log drives” were conducted on local rivers to send the logs to the mills. By the late 20th and early 21st-century, paper mills began to close and the log drives became a dying craft. Due to the addition of new machinery, many millworkers were laid off and many of the historic paper mills closed.

Paper mills can be fully integrated mills or nonintegrated mills. Integrated mills consist of a pulp mill and a paper mill on the same site. Such mills receive logs or wood chips and produce paper. It is a common misconception that paper mills are sources of odors.[clarification needed] Pulp mills and the pulping section of integrated mills (particularly if using the kraft process) commonly have associated odors; nonintegrated mills purchase wood pulp, usually in dry bales known as market pulp, and produce little, if any, odor.

The modern paper mill uses large amounts of energy, water, and wood pulp in a highly efficient and extremely complex series of processes, using modern and sophisticated controls technology to produce a sheet of paper that can be used in incredibly diverse ways. Modern paper machines are very large and can be 500 feet (~150 m) in length, produce a sheet 400 inches (~10 m) wide, and operate at speeds of more than 60 mph (100 km/h). The two main suppliers of paper machines are Metso and Voith.