How does DyeSub or sublimation printing work?
DyeSub printing (dye sublimation printing) is a printing process in which dyes are transferred to a substrate using heat (up to 230 °C). Sublimation printing was introduced as a new printing process in the late 1960s.
sublimation refers to the direct transition of an element from the solid to the gaseous state of aggregation without first liquefying. Technically, this is not entirely correct for DyeSub printers, as it turned out after the naming. A transition between the solid and the gaseous state without going through a liquid phase is im DyeSub process not possible to 100% - to some extent the dye always liquefies. So the correct name for the process must be dye diffusion.
The (predominantly) gaseous dye penetrates into the material to be printed (textile) or settles on it (plastic).
In the dye sublimation process or diffusion process, such media can be printed that mainly consist of polyester (PES), polyacrylonitrile (PAN) or triacetate (CTA) or have a corresponding coating.
The Special on the polyester: The application of ink does not form a layer on the printing material, but connects itself
complete with the subsoil. The color application of the water-based sublimation inks is not noticeable. With this process, textiles lightfast and washable. The breathability is maintained, what a
continued high level of comfort guaranteed. Polyester is so hard-wearing and durable that the printed products can be used outdoors without any problems.
With thin materials, a print through achieved, ie the motif is visible from both sides.
The main areas of application for this printing process are Flags, textile banners, decoration, fashion and interior design.
the differences
DyeSub transfer/Paper or sublimation transfer printing
The mirrored motif is printed on a transfer paper. Using a transfer press, the motif is transferred to the substrate under the influence of pressure and heat.
DyeSub direct or sublimation direct printing
Most large format presses can print directly onto print media.
Advantages
➛ extremely durable print
➛ suitable for outdoor use (UV-resistant)
➛ high color brilliance and print quality
➛ Print-through possible (motif also visible on the back)
➛ No health hazard from the inks (solvent-free printing process)
➛ Inexpensive printing
Disadvantages
➛ Limited selection of print media (at least 85% polyester or polyester coating, natural fibers made of cotton or wool are less suitable)
➛ Print media must be heat resistant
➛ Media shrinks slightly during printing (1-4%)
➛ Best print image on a white background, pale color impression on tinted textiles, no white print possible
This is a high-quality textile for sublimation printing from com2C BacklitTex 116 DLUV MW FR.
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