VSEP recycles coating material and water for reuse in paper coating facility

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Courtesy of New Logic Research, Inc.

The manufacture of coated paper is a major industry worldwide. Total paper manufacturing capacity in the United States is about 102 million tons per year with 5 million tons, or about 5%, being coated paper grades. The addition of coating materials to paper is expensive yet provides improvements to the sheet for its intended uses. Products that typically use coated paper include magazines, catalogues, brochures, labels, books, stamps, and book covers.

The paper making process is very sophisticated, with paper machines producing paper at incredible speeds, on which the coating is applied. The coating of paper may also be applied “off-machine” providing more flexibility in the production schedule and for grade changes, by separating the coating function from the paper machine operation. Coaters, the specific equipment that applies coating to the paper may be arranged in several configurations. One of the most common arrangements is that which uses a blade or bar to evenly distribute the coating across the paper web.

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