Applications of Dye-sublimation printer

Saturday, October 3, 2009

Dye-sub photo printing has been used in medical imaging, graphic arts proofing, security, and broadcast related applications.
Alps Electric produced the first quality dye-sub printers for home consumers in the $500-$1,000 price range, bringing dye-sublimation technology within the reach of a wider audience. Now there are many dye-sublimation printers on the market starting from as low as $100 marketed by corporations such as Canon, Sony, Sagem, HiTi Digital Inc., Mitsubishi Electric and Kodak (among others), especially postcard-sized mobile photo printers.
The ability to produce instant photo prints inexpensively from a small printer has led to dye sublimation solutions supplanting traditional instant photos in some applications, such as ID photography.
Several corporations, including Fuji, ICI, Kodak, Mitsubishi, and Sony, market desktop size units as stand-alone printers and for print kiosk and photo booth applications. Some of these units are based on generic printers produced by manufacturers such as Shinko. ICI ImageData, Copal, Shinko and Fuji, amongst others, offer software development kits with their printers, suggesting that these companies hope to attract system integrators as a potential market. Some units from manufacturers such as HiTi Digital Inc. and Sony incorporate kiosk features such as display screens and card slots directly into the unit.
Desktop size stand-alone dye-sub photo printers are also being applied by social photographers in event photography. The units' instant print ability allows photographers to produce and sell lab quality prints immediately during the event they are attending, with a minimal amount of hardware.
Dye-sublimation printing process is primarily used to print on polyester or other synthetic fabrics. It is used for many applications such as trade show banners or table covers, t-shirts, bike uniforms, competitive swimwear, soccer jerseys and flags. The original printers were an electrostatic technology using toners but now are generally large format inkjet printers using specially formulated inks. The dye sublimation inks are a pigment suspended in a liquid solvent, like water. The images are initially printed on coated transfer paper as a reverse image of the final design, which is then transferred onto polyester fabric in a heat press operating at a temperature around 180 to 210 C (375 F). Under high temperature and pressure, the dye turns into a gas and permeates the fabric and then solidifies into its fibers. The fabric is permanently dyed so it can be washed without damaging the quality of the image.
Dye-sublimation can also be used as an indirect printing process. Standard black and white laser printers are capable of printing on plain paper using a special "transfer toner" containing sublimation dyes which can then be permanently heat transferred to T-shirts, hats, mugs, metals, puzzles and other surfaces.


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