Voith edge trim concept yields excellent results in its first reference in Latin America

SÃO PAULO, Brazil. Since January 2017, paper manufacturer GreenPaper, headquartered in the city of San Nicolás de los Garza, Nuevo León, Mexico, has been operating with Voith’s EdgeExpert edge trim concept on the wire section of its PM3’s top ply. With this, the paper manufacturer has now become Latin America’s first reference for this solution. The EdgeExpert unit has provided significant raw material savings for GreenPaper, and its results have exceeded the customer’s expectations. “Directly recovering the white fibers from the edges of the top ply before it is mixed with other lower quality stock provides a significant recovery of 70 to 80 tons of white fiber every month,” says Federico Chávez Gómez, Engineering and Mechanical Project Manager for GreenPaper. “EdgeExpert keeps the edges of the top ply wire clean, preventing web breaks caused by fiber accumulations on the wire, as well as improving formation and the final appearance of the paper edges after the coating process,” he concludes.
 
EdgeExpert trims the edge of the stock jet before it lands on the wire, continuously returning it to the virgin fiber stock circuit. The width of the edge can be adjusted to meet each paper grade’s specific needs. By collecting the stock edges directly through the whitewater pan, the system prevents these fibers from mixing with the stock from other plies. This allows for significant fiber recovery and reuse, which translate into significant operational savings. EdgeExpert’s nozzle design also ensures low water consumption.