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Warm colour
In
printing, a colour with a yellowish or reddish cast.
Washup
The
process of cleaning the rollers, form or plate, and sometimes
the ink fountain of a printing press.
Waste Paper
Paper which has ended its immediate useful life, created before or after reaching the final consumer of the paper, or paper product.
Water Pollution
Introduction of foreign substances to a water source, either toxic to life forms or creating an oxygen demand, depriving indigenous life forms of oxygen and resulting in their death.
Waterless plate
Printing plate that is printed on an offset press without
dampening solution.
Waterless printing
In offset, printing on a press using special
waterless plates and no dampening system.
Watermark
A
deliberate design or pattern in paper made by a dandy roll as
the stock passes through the wet end processes; a watermark
can be seen by holding the paper up to the light.
Web
A roll of
paper used in web or rotary printing.
Web press
A
press, which prints, on roll or web fed paper.
Well Managed Forest (WMF)
Forests that are certified and audited to ensure they comply with environmentally sustainable practice and principles. Tropical hardwood and softwood trees are now grown in well managed forests. A number of systems are used throughout the world, including FSC, FFCS, PEFC, SFI and CSA.
Whiteness
A
description of both the total ammount and purity of white
light reflected from a surface. Often expressed as CIE Lab,
where figures are given for total refectance, red-green, and
blue-yellow hue.
Widow
In
composition, a single work in a line by itself, ending a
paragraph, or starting a page, frowned upon in good
typography.
Wire side
In
papermaking, the side of a sheet next to the wire in
manufacturing; opposite from felt or top side.
Wire-o binding
A
continuous double series of wire loops run through punched
slots along binding side of a booklet.
With the grain
Folding or feeding paper into a press parallel to the grain of
the paper.
Woodcut
An
illustration in lines of varying thickness, cut in relief on
plank-grain wood, for the purpose of making prints.
Woodfree Papers
Term used to describe paper made from chemically produced pulp which does not contain lignin. A more precise description would be Lignin Free Paper.
Word processor
A
typewriter connected to a computerised recording medium to
input, edit and output data.
Work and tumble
To print one side of a sheet of paper, then turn it over from
gripper to back using the same side guide and plate to print
the second side.
Work and turn
To
print one side of a sheet of paper, then turn it over from
left to right and print the second side using the same gripper
and plate but opposite side guide.
WORM
Acronym for
Write Once Read Many Times - a type of optical memory
device.
Wove paper
Paper
having a uniform unlined surface and a soft smooth finish.
Wrinkles
Creases
in paper occurring during printing. In inks, the uneven
surface formed during drying.
Wrong font
In
proof reading, the mark "WF" indicates a letter or figure of
the wrong size or face.
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