Print Media Production test 1

Sources of fibers for papermaking

wood, cotton, recycled paper, elephant poop, bamboo, banana, algae

How is paper weight measured?

in pounds, Lb

Pre-consumer vs. Post-consumer paper

pre-consumer: Any paper that has not been used by the general public, like leftover paper from the mill, trimmings from the printing process, and damaged paper.

Post-consumer: includes paper that has been printed, sold, used, and discarded by the consumer. Newspapers, cardboard boxes, copy paper, notebooks, etc

What is affected by the grain of the paper?

Grain effects folding, scoring, and tearing folds. and it tears easily parallel to the grain.

Linen paper

textured office or resume paper, looks like a linen criss cross pattern.

Laid paper

Lines on paper look laid next to each other, more organized.

Coated paper

glossy and a little shiny

Felt paper

soft and similar to fabric

Smooth paper

The surface feels uniform without bumps or irregularities. Threads are tightly woven, creating a sleek appearance.

The advantages and disadvantages of: Digital/On demand

Advantages:

-Economical for short runs (1-1000)
-Can change info during a print run for
-personalization from database (variable data)

Disadvantages:
-Limited paper types and weights
-Usually small press size
-Not economical for long runs

The advantages and disadvantages of :Letterpress

Advantages of letterpress:
-Capable of printing fine detail.
-Easily adjustable
-Can print on a wide range of material thickness
from cardboard to rice paper.

Disadvantages of letterpress:
-Can be more expensive than other printing methods.
-Considerably slower process than other printing
methods.
-Does not print smooth, flawless, large areas of ink
coverage.

The advantages and disadvantages of :Gravure

Advantages of gravure printing:
• Prints very fine detail.
• Prints smooth, continuous tone.
• Prints at very high speed.
• Plates last for more than a million impressions.
• Can print on very thin/delicate papers.
• Can reproduce a wide dynamic range or colors.

Disadvantages of gravure printing
• Very expense.
• Takes a long time to make the copper plates or drums.
• Only economical for print runs of 800 thousand or more.

The advantages and disadvantages of : Offset lithography

Advantages of offset lithography:
-Can be economical for short or long print runs.
-Can register colors nearly perfectly.
-plates can be made quickly.
-Inexpensive reusable plates.
-Excellent color consistency.
-Can print very fine line screens.
-Can print on wide variety of textures.

Disadvantages of o!set lithography:
-Web-fed press limits paper weights to 40-100 text.
-Sheet-fed prints more slowly than web-fed.

The advantages and disadvantages of :Flexography

Advantages:
• Can print on almost any surface, metal,
plastic, textiles,and cardboard.
• Opaque inks.
• Thick coverage.
• Fast print speed (usually web).

Disadvantages:
• Short plate life, because of high friction.
• Can not print great details because of
course line screen (120 max).
• Ink spreads.

What is the most common type of commercial printing?

Commercial Offset Lithography is a commonly used printing technique in
which the inked image is transferred (or “offset”) from a plate to a rubber
blanket, then to the printing surface.

A sheet fed press vs. A web fed press

Sheet fed — Paper is fed from stacks of flat sheets

Web fed — paper is on a large roll and is drawn through the press

Texture simple.

A reversed raised surface is inked and pressed to the surface of the paper to reproduce an image.

Letterpress

prints in large quantities with beautiful tone an detail that don't change - money, museum prints, food, magazine.

Most common printing process in which the image to be printed is recessed into a plate,
and the printing ink fills the holes and is transferred to the paper.

Gravure

Most common printing technique world wide.

plate - rubber blanket - print

holds a different color ink on each blanket - cmyk

Offset lithography

printing that utilizes a flexible relief plate, inexspensive

ex- plastic bags, cardboard box

Flexography

printing from a digital-based image directly to a variety of media without transferring the image to a plate. Commercial high-volume laser or inkjet printers.

ex- different names on email for college campus,

Digital/On demand

Additive vs. Subtractive colors

Additive Colors
• The primary additive colors are Red, Green, and Blue.
• Monitors show color in RGB.
• When all colors combine, you get white light.

Subtractive Colors
• The primary subtractive colors are Cyan, Magenta, and Yellow.
• Additive primaries are created by combining two of the subtractive primaries.
Ex. yellow and magenta make red.
Printing press colors are CMY(K=black)
• When all colors combine, you get black pigment.

Spot vs. Process color

There are two different color ink systems in commercial printing.

-Spot colors are special mix colors that are printed using one matched color of ink. This is how flat colors are printed.
• The Pantone Matching System is an example of
spot colors.

-Process colors are made up of the subtractive primaries
yellow, magenta, cyan with the addition of black CMYK
• Process colors are translucent and can be
overlaid to make many additional colors.
• This is how photographs and illustrations are
printed

Pantone colors

A commercial printer mixes any combination of 18 base inks by using a
recipe which is generated by Pantone.

Ink swatch books or “chip books” have
multiple copies of the same colors
on tear out chips.

• Fan books have all color inks in one
category such as coated and uncoated.

• Pantone inks come in specialty colors
such as metallics, fluorescents, pastels.

Color viewing booths

Designers view press sheets under color viewing booths to make accurate
color corrections to printed work as the paper is being printed on a
commercial press.

How to measure light

Kelvin — The assigned numerical value of

color emitted by a light source.

Color temperatures are degrees Kelvin — ̊ K

Why is a folding dummy helpful?

Signatures can look complicated and be confusing at first. When in doubt,
make a miniature folding dummy for your benefit and to show the printer how
your piece is supposed to back up.

Parts of a layout

Live Area
• The part of the page that will print.
All information inside this area
prints.

Crop Marks
• Thin lines placed at the corners of
a layout to indicate where the
paper should be trimmed after
printing. They define the trim area

Slug Area
• The slug area is every part of a
press sheet that will be cut off of
the final print. This includes any
bleeding image content; all crop,
fold, and registration marks; and
any color bars

Bleed
• Any element that extends
beyond the trim area of the page

Folds - - - - - - - - - - - - - -
• Folds should be indicated with a
dashed line, You can draw these
with the pen tool in Illustrator or
InDesign.

the difference between work and turn and work and tumble

Work and Turn:
-Most common method of
imposition
-Allows page to be printed front
and back from one plate.
-Page is rotated from left to right.
-Allows sheet to be fed in the
same direction, using the same
gripper edge, which results in
better registration

Work and Tumble:
-Allows the page to be printed front
and back from one plate
-Some pages appear upside
down.
-Uses more paper waste,
because it uses two different
gripper edges.
-Registration front to back may
be less exact

Saddle stitch

staple through spine

Perfect binding

cover wraps around the spine and its glued

Case binding

hard cover, fabric usually on the inside of the first page, sewn spine

Spiral binding

1 loop in a continuous cycle, pages are uneven

wire-o

double loop wire, opens like a clam shell, cheaper than spiral