COUCH PRESS - APPLICATIONS IN THE PAPER INDUSTRY.

The paper discusses the application of the couch press on paper machines in the world markets with an update on the performance in the U. S. It covers the theory, necessary machine changes to assure efficient operation, conditioning equipment, description of the felts, and a summary of the results attained at the various installations. Applications have been made on machines making all grades of paper, resulting in a reduction of sheet moisture content after the couch, fewer wet-end sheet breaks, and an increase in machine operating efficiency. In some cases, sheet dryness after the press section was increased, allowing for higher machine speeds.