The main function and objective of the headbox is to distribute a suspension of stock evenly and uniformly on to the forming fabric. This is the most important part of paper making .The headbox 's (Operational parameters )will determine and influence many of the important end paper properties like formation,surface characteristics ,sheet stability and strength.
There are many different types of headbox namely Open headboexes Air-cushion Headboxes Hydraulic Headboxes Multilayer Headboxes and High-concentration Headboxes