Flashcards
Fourdriner Process
Flashcards do conjunto (9)
- 1What is the name given to diluted wood pulp and what is its composition?Slurry: 99% water, 1% fibre
- 2What is a slice?An adjustable slit at the beginning of the 'Wet End.'
- 3Wet End process (using key terms)?Wood pulp is turned into slurry.
Slurry is pumped through slice onto moving gauze.
Water is drained to allow fibres to interweave. - 4Press Section process?Nip presses or rollers wring out excess water.
Pulp is stretched into rough paper and thickness is decided. - 5How is the thickness decided in the press section?The gap between rollers is adjusted to differ the thickness.
- 6Drying Section process?Paper is dried using steam-heated rollers.
Agents, starches, and resins are added. - 7Why are agents, starches, and resins added during the drying section?To enhance paper properties
- 8Calendar Stack process?Rollers give thickness & smooth out paper.
Pressure is applied to determine finish. - 9What happens to the paper after its been through the Fourdriner Process?It's wound onto a roll and stored or can be placed onto a precision cutting machine to produce the desired size.