| Producing the Image
Digital Images can be produced from a wide range of output devices,
using various technologies. Liquid ink-jet, electrostatic, solid
ink-jet, thermal-transfer and photographic devices are the primary
technologies used today.
Here's a brief introduction to several of the technologies:
Ink-jet

Inkjet heads produce an image
Piezo - ink is released by applying pressure, to the nozzle
chamber, forcing a drop of ink onto the media (print surface) as
needed to create the image.
Continuous- ink is continuously under pressure forming a
stream of droplets. The droplets required to form the image are channeled
to the media, while the unused droplets are recycled.
Thermal- a gas bubble is created in the nozzle chamber with
a heating element, creating pressure to force a droplet of ink onto
the media.
Solid - ink is stored in a solid format, melted as needed
and applied to media using methods similar to liquid ink-jet.
Thermal Wax/Resin Transfer
Wax or resin is applied to a film carrier, usually in a roll format.
The wax or resin is transferred to the media using heat. Each color
must be transferred individually.
Dye Sublimation
Similar to thermal transfer, sublimation dyes are transferred from
a carrier roll and applied through the use of heat. When a controlled
amount of heat is applied, the dye is vaporized and transferred to
the media.
Electrostatic
Special media is imaged with an electronic charge that attracts
toner particles. Typical electrostatic printers image each color
individually.
Spray Jet
Individual ink colors are applied directly to the media through
a spray nozzle.
Digital images can be applied to paper, vinyl, fabric, plastics
and many other materials. Depending on your specific requirements,
your service provider can help you select the best output device.
Finishing

Lamination is often used to "finish" digital prints
Using special media, inks and/or laminates, images can be produced
which withstand sunlight and most weather conditions. Also, adhesives
are available which provide the opportunity to apply digital images
to various surfaces. You'll find digital images on buses, planes,
buildings, ceramic tiles, and textiles... just about any surface
imaginable.
Digital Imaging is changing the way we manage graphics... learn
more about the many advantages offered through this creative
and cost-efficient technology. |