What function of dye sublimation printing?

Sublimation printing can provide a high fidelity image on a print substrate. Sublimation printing generally refers to a printing process Where a desired image is reverse printed on sublimation paper by a conventional printing technique (e.g., inkjet printing) to provide a reverse-printed sublimation transfer paper. The reverse printed dye sublimation paper can be combined With a print substrate in a sublimation to provide sublimation printing from the reverse printed sublimation transfer paper to the print substrate. Depending on the sublimable ink selected for sublimation printing, the conditions Within the sublimation can vary to achieve sublimation printing. Sublimation printing can result from a combination of conditions Wherein the conditions include time, temperature, and pressure. The desired level of transfer of sublimable dye can be achieved by selecting the desired time, temperature, and pressure that the sublimation transfer paper and the printing substrate are subjected. For example, it may be possible to achieve transfer at room temperature by adjusting the time and pressure to Which the sublimation transfer paper and the printing substrate are subjected. Reported sublimation printing temperatures can be in the range of about 230° C. In general, the surface of the sublimation transfer paper that is printed on can contact the surface of the printing substrate during sublimation printing. The sublimation transfer paper and the printing substrate can be held together by pressure.

Sublimation printing is advantageous for printing on substrates Where it is difficult to achieve a high fidelity image on the substrate by conventional printing techniques such as inkjet printing? Graphic printing, offset printing, and rotary screen printing. For example, the print substrate may be a substrate that has a shape or texture that is difficult to feed to a printer, or it may be a substrate that does not readily receive high fidelity images by conventional printing techniques. Exemplary articles having a print substrate that can be advantageously printed on by sublimation printing include textiles (e. g., fabric and clothing) and articles having a metal, glass, ceramic, or plastic surface. Textiles that are often printed on using sublimation printing include clothing (e.g., t-shirts and jerseys), banners, and signs.
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