Printing inks,TYPES OF PRINTING INKS,Paste inks,Liquid inks,Energy curing inks, Inkjet, Gravure,THE PALTES

2. TYPES OF PRINTING INKS
Paste inks
Energy curing inks
Liquid inks
• Offset(Sheet fed,web offset)
• Letterpress
• Intaglio
• Flexo
• Offset
• Screen
• Flexography
• Gravure
• Screen
• Inkjet
• Digital

4.  The Gravure Press is a form of Intaglio printing. This
is where the print is engraved into a cylinder of
copper.
 The engravings are tiny honeycomb shaped cells.
 The cylinder turns in a big bowl of ink called an ‘ink
pan’.

5.  Advantages
- Highest quality possible in a print.
- The printer can work for decades.
- Each cylinder can make a large number of prints without
degrading.
-The gravure cylinder can be created with analog or digital
plating processes.
-Gravure is the preferred method of producing magazines and
catalogs
 Disadvantages
- Expensive Price - $1 million USD for the printer and each
cylinder costs $5000.

6.  The Plates are large cylinder with minute honeycomb
shaped pieces of copper. The copper pieces are
placed an equal distance apart Below the copper is a
thin wear-resistant layer which is un-engravable to
ensure that it will only get into the copper.
 Each plate can make a large number of impressions
without degrading.

8.  Can be printed on a wide variety of materials.
 Preferred over other methods, because of its low
cost.

9.  Two main functions
– Provide support for stencil.
– Control ink flow.
 Mesh count: how many opening per inch.
– Fine mesh=100 count (ct) up to 500 ct. mesh
 More detail and uses less ink; feels softer to touch.
 Less likely to smear on non-absorbent substrates.
– Coarse mesh=40 to 100 ct. mesh
 Heavy ink deposit (good for light inks on dark shirts.
 Better opacity

10.  Inkjet Printing came about in the late 1980’s
 Have become the replacement printer for the Serial
Dot Matrix in the home
 Two Main Reasons:
I. Price
II. Color capabilities

11.  Produce characters by squirting a precisely
controlled amount of ink onto the paper
 Dots are extremely small usually 50-60 microns in
diameter (Human Hair approx 70 microns)
 Dots are placed very precisely on the paper in a
pattern up to 1440 x 720 dots per inch
 Dots can be different colors and can be of
photographic quality

12.  Print head contains a
series of Nozzles that
put the ink on the
paper.

13.  Offset lithography
◦ type is offset from the printing plate to a blanket
then to the paper.
 Engraving
◦ ink wells shaped like the type transfer image
direct to the paper -- ink surface is raised off the
paper
 Thermography
◦ treated inks, heat dried to rise (like bread) from
the paper surface

14.  Reprographics
◦ copying or duplicating (Xerox or Kinko’s)
 Digital printing
◦ printing direct from computer files (Giclée, IRIS
continuous tone printing)
 Silk screen
◦ ink is pressed through a sieve onto many surfaces

15. The visible
spectrum Used in
monitors. Primary
Colors are Red,
Blue and Green
When combined it
produces ‘white’
light or the
combination of all
visible colors.

16.  A letterpress works much like
a sophisticated rubber stamp.
 The raised image area is inked by large rollers and
the ink is then transferred directly to the paper
sheet.

17.  The oldest printing process
 Relief printing
 One color (usually black) thick layer of ink
 Economical for between 500 and 5,000 copies
 Limited typefaces available
 Used mainly for text only - not suitable for half tone
illustrations
 Most often used for text pages of books

18.  To make a print, ink is pushed into
the lines of the design. The
surface is then wiped clean so
that the only areas with ink are
the lines.
 A sheet of paper which has been
soaked in water is then placed on
the plate which is run through a
printing press.

19.  Lithography is the art of
printing from a flat stone
or metal plate by a method
based on the simple fact
that grease attracts
grease as it repels water.

20. THANK YOU