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FTA Level 1
Quiz 2
Question | Answer |
---|---|
Corona treating using electrical charges to oxidize the surface of the printing side of the stock and raise the _____ level. | dyne |
When paper is shipped from the mill it always contains a heavy duty wrapping. This wrapping is to protect the rolls from... | Moisture |
What are the two most important atmospheric conditions of roll paper | Humidity and Temperature |
What can result as a result of improper roll handling | Cores become crushed or the rolls nicked. |
Grain direction is essentially how the fibers lay of align when they are deposited on the wire in the paper making process. What does "grain long" refer to? | Machine direction |
What type of flexographic ink requires the operator to measure and control both pH and viscosity. | Water based |
In flexographic printing ink the resin which is also known as the vehicle, does what? | Carries the pigment and binds it to the substrate. |
What conditions result when water and amine evaporate from water based ink? | Dried ink accumulates on printing plates, pigment load is increased. |
Plate cylinder diameter determines the ______ length of a flexographic printing impression. | Repeat |
Flexographic ink _____________ consists of resin, solvent and additives. | Vehicle. |
In a UV ink....help determine the characteristicks of ink, such as gloss, hardness, flexibility. It is similar to solvent in its ability to thin down ink. | Monomers |
Solvent based ink is dried by | Exposure to a mixture of heat and forced air. |
The capstan roll is part of what section on the press | Waste removal section |