VIB Tech Dictionary
Just click on a letter to navigate through the VIB Tech Dictionary.
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RATTLE |
The crisp, crackling sound produced upon shaking or crumpling a sheet of paper to indicate its rigidity or stiffness. |
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RAW WATER |
Untreated water as it is received from the water supply canal. |
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RAW STOCK |
Pulp which has not been refined. |
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REAM |
A quantity of paper - usually 500 sheets for most papers, some tissues 480 sheets. |
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RECIRCULATION PUMP |
Pump used to circulate the excess stock from the tapered header on the head box back into the system. |
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REEL |
An untrimmed roll of paper of full machine width wound on a large shaft or spool at the dry end of the paper machine. |
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REFINER |
A mechanical device used to grind pulp fibers and change their physical characteristics before they are used to make the finished paper. |
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REFINER PLATES |
Grooved discs mounted inside a refiner used to cut or fibrillate the fibers. |
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REFINING |
A general term applied to several operations, all of which involve the mechanical treatment of pulp in a water suspension to develop the papermaking properties of hydration and fibrillation and to cut the fibers to the desired length distribution. |
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REFRACTOMETER |
An instrument for the optical measurement of the solid content of a solution (starch). |
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REGISTER |
(1) Paper – a type of bond paper for multiple uses: |
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REJECTS |
Stock and wood dirt rejected by the cleaning system. |
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RELIEF |
The person relieving a worker on a shift and performing the same job on a succeeding shift. |
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RETENTION AID |
A chemical additive to paper that aids in retaining fillers and fines in the sheet. |
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REWINDER |
A machine which takes rolls from the machine winder and slits and/or rewinds them into small rolls. |
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RIDER ROLL |
A roll on the winder that rides on top of the winding rolls. Aids in structuring the finished rolls. |
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ROPES |
In addition to its many normal uses, endless ropes made of cotton or nylon are used to convey the sheet through the dryers on the paper machine during threading. |
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