Fourdrinier Process

Wet End : 

• starts with wood pulp diluted to 99% water and 1% fibre
• a continous stream of slurry is pumped from the headbox through an adjsutable slit
• a moving guaze belt drains off some of the water and allows fibres to interweave
• raised patterns formed create the watermark

Press Section : 

• rollers wring out the majority of excess water
• stretches it out into a rough paper
• the thickness of the paper / board is then determind
• the gap between the press rollers is adjusted to allow for differing thicknesses

Dryer Section : 

• dries the paper using a series of steam-heated rollers

Calender section

• comprises a series of rollers through the chosen paper which is fed in , in order to smooth it
• the thickness applied determins the finish of the paper