final Flashcards
With digital printing, each page can be unique
Text and images can vary
Variable data allows the product to be more personalized for its end user
Content-specific
Disadvantages of digital presses
Cost is higher
Speed is slower
Lower quality
Click charge
every time a cylinder rotates one time around
Quarter size
12” x 18”
Full size
28” x 40”
Half size
20” x 28”
The number of print units is usually
four
More print units can be used for…
Special colors
Special coats: dull, glossy, matte
Smell
Straight press
= prints one side of a product (2 passes for double-sided)
Perfecting press
= prints on both sides in a single pass (higher degree of efficiency)
What is the order of a print unit?
Ink fountain
Ink rollers with heat
Fountain solution - water-based
Plate cylinder = image is etched onto the plate
Blanket cylinder = carries ink from the plate cylinder
Substrate
Impression cylinder = comes into contact with the bottom of the substrate; pushes substrate into blanket cylinder
Viscosity
the resistance of a liquid to flow
Advantages of a sheetfed press?
Highest quality (better color production)
Good for long-run jobs (greater than 5,000)
Critical color
When does registration happen?
When all the ink dots are in alignment
What is a loop?
A tool used to see ink dots
What is an outside purchase in finishing?
Trade binder = a company that specializes in a specific type of binding/finishing (ex. perfect bound, case bound, foil stamping, etc.)
What is perfect binding?
Signatures are glued into the spine of the cover
What is a lift?
The amount of sheets that can fit in the guillotine at once
What is a web press?
Any press that uses a roll of a substrate
What are some advantages of web presses?
Good for high-volume printing (millions)
Inks are a deeper pigment
Paper cost is cheaper in roles
Fast
High quality
Multiple in-line finishing options
Disadvantages of web presses?
Very expensive
Large square footage
Web presses have three possible outcomes for finishing. What are they?
Cut webs into sheets we want
Roll to roll
Goes through the folder at the end of the press
1843 Rotary Press invented by Richard Hoe
Printed in sheets
Very slow
1863 Rotary web press invented by
William Bullock
What is heat set? (most common)
Oven flashes solvent on paper
Inks are a deeper pigment
Higher quality
What is cold set?
Ink is thinner and is absorbed into the paper
Lower quality
circumferential number for one cutoff =
22.75
