Latest Development in Headbox Technology for Fourdrinier and Hybrid Forming Applications

摘要

New headbox technology for Fourdrinier and hybrid forming is presented. With the latest developments in headbox technology improved end product quality is achieved through a combination of re-designed turbulence tube geometry and better CD profiling accuracy. Main benefits for paper production are improved paper quality, higher machine productivity and reduction of energy costs. New headbox technology makes also new applications available. Mill experiences of two-layer headbox application are presented in this paper.