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8/3/2019 Research of the Different Printing Techniques
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Research of the different printing
techniques
Luke Bradley
&Mark Neale
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Many methods have been devised since very early times to
produce a surface from which a number of identical
impressions could be taken. Printing of a sort could be said to
exist as soon as the Sumerian made a triangular pointed tool
to impress cuneiform symbols on clay, or used a hollowed out
seal, sometimes cylindrical in form, to mould a figure in relief
on the same material.
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All information taken from
http://www.roeandmoore.co.uk/Pr
inting%20Techniques.asp
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Intaglio
Indents or irregularities are printed onto a plate. A heavy ink or
other pigment is applies to the plate and then later removed from
the surface before printing but the pigment remains in the
indentations. Under pressure these paterns of ink may be
transferred to a plastic material such as a damp paper, clay, meltedsulphur or wet plaster on the. Etching and engraving are generally
printed by this method.
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Woodcut
Woodcut is one of the oldest methods used
in the fine art of printmaking. The artists
design or drawings are made on a piece of
wood (usually Beachwood). And the
untouched areas are then cut away using a
Chisel with a concave blade leaving the
image which is then inked. Woodcut prints
are produced by pressing the selected
paper onto the inked image.
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Line Engraving
This is done using a copper plate and a cutting tool called a graver
or. The cutting is made direct in the copper with a square or lozenge
graver. In these prints the classical manner of holding the graver has
been adopted: Against the palm, the blade between the second
finger, and thumb driven in the line of the forearm. The tool issharpened with under surfaces true, parallel and without small
turned-up facets used by lettering engravers.
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EtchingIn principle the plate is sealed with a protected with acover which resists acids. By applying acids of different
strengths to these openings for different amounts of time
the metal is eaten away to a greater or lesser extent. The
coatings used may be applied by dabbing or rolling on
heated plates essentially they should resist acid perfectly,adhere to the plate, and support indefinitely needling or
scratching without cracking off. The Coatings used usualy
consist of bitumen, beeswax and resin
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AquatintAlso using acid to eat away the plate but it isagain applied in areas rather than in patterns.In one method, resin dust is deposited on theplate, the plate is then heated to make thegrains melt and adhere to it, and areas ofdifferent shades are etched by successive
stopping's during the progress of the biting.Graduations of strength are also made bymanipulation of the acid, by rocking theplate, or by applying acid in focused parts.Normally this method gives characteristicallyopaque tones in prints in contrast to the
transparent tone in the soft-groundtechnique-although a heavier coverage ofresin will reduce this, and any previous workon a the plate will, of course, be exposed toattack by acid.
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Drypoint
This method involves the use of a point (steel,sapphire, or diamond) directly on the plate, oneof the simplert more skilled methods of workinga plate. However owing to the fragility of the
result in printing and the extreme variety of lineobtained by different angles of cutting, it is foundto involve greater manual dexterity than themore mechanically elaborate etching process.This flange may be double, fine and sharp like aknife-edge; single and strong; or single and saw-edged.
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Mezzotint
Mezzotint - (mezzo = half and tinta = tone), is a reverse engraving
process used on a copper or steel plate to produce illustrations in
relief with effects of light and shadow. The surface of a master plate
is roughened with a tool called a rocker so that if inked, it will print
solid black. It was widely used in the 18th and 19th centuries toreproduce portraits and other paintings. But later on was caused to
become obsolete and out dated.
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Lithography
Printing technique using a planographic process in whichprints are pulled on a special press from a flat stone ormetal surface that has been chemically sensitized so thatink sticks only to the design. Originally the process was used
on stone. The process starts with drawing the image on thestone by using a greasy black lithographic pencil. Theseusually take a few days, depending on the size andcomplexity of the image. The main problem is that theimage is permanent and can not me erased. Smallcorrections can be made with a sharp knife, but major
corrections are needed, it is necessary to start again on anew stone.
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Giclee
A giclee is a computerized reproduction technique in which the
image is generated from a digital file and printed by a special ink jet
printer, using ink, acrylic or oil paints. Giclee printing is one of the
most accuracy and richness of colour available in any reproduction
techniques.It can be printed on paper or canvas and re-touched by hand with
paint etc. Today this is a very common form of printing or
reproducing art work to a high quality. Many artists reproduce their
paintings onto paper as signed limited editions, using this method
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Digital
Digital
Photocopying
Laser printing
Inkjet
Desktop publishing
Digital screen printing
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Photocopying
A photocopier is a machine that makes paper
copies of documents and other visual images
quickly and cheaply. The first widely used copy
machine for offices was invented by James
Watt in 1779.
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Laser printing
The laser printer was invented at Xerox in
1969 by researcher Gary Starkweather, A laser
printer is a common type of computer printer
that rapidly produces high quality text and
graphics on plain paper.
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Inkjet
Inkjet printers have certainly come a long way in the last two
decades. And although we didnt see them in the stores until
the 1980s, it was as far back as the mid 1970s when printer
companies recognised that inkjet technology was going to be
the wave of the future. But initially, companies were faced
with the challenge of creating an inkjet printer that was
affordable while at the same time could provide quality
printouts. The more popular type of inkjet printer was
invented by Siemens in 1977. These printers, sprayed ink onlywhere needed and although they were less expensive, they
were slower than continuous inkjet printers.
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Desktop publishing
in the mid 1980s, Apple Computer, Adobe,
Aldus and Hewlett-Packard each produced key
technologies that, when combined, allowed
graphic designers, publishers and pre-press
professionals to bring the whole publishing
process in-house.
Desktop publishing began in 1985 with theintroduction of MacPublisher.
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Digital screen printing
Screen printing is a printing technique that uses a woven
mesh to support an ink-blocking stencil.
Screen printing first appeared in a recognizable form in China
during the Song Dynasty . Japan and other Asian countries
adopted this method of printing.
Screen printing was largely introduced to Western Europefrom Asia sometime in the late 18th century, but did not gain
large acceptance or use in Europe until silk mesh was more
available for trade from the east and a profitable outlet for
the medium discovered.