Dye sublimation technology uses heat energy to transfer the pigment to the printing medium. The thickness of each color is controlled by the temperature change of the printing head, up to 256 levels.Because the pigment is applied to the paper by the gas phase during the sublimation process, the three primary colors can be fused to form a continuous color level, which is much better than the ink droplets produced by the ink-jet printing,
As far as printing effect is concerned, color thermal dye sublimation printer can be said to be the best partner of digital camera, therefore, this kind of printer is often called color digital photo printer, especially suitable for the delicate skin texture of portrait when printing, but also has the characteristics of long-term preservation not easy to fade.Magenta, yellow, cyan, these are what we call the three primary colors, any other color can be through the three primary color coordination and become, the thermal sublimation printer is through the combination of three colors to achieve a variety of colors and deep color.In sublimation printing, the three colors are not printed at the same time.
Instead, one color is used at a time and the required color is combined three times. It is for this reason that the printing medium needs to go through the printer for a total of three times during the printing process, which also makes the printing process of the thermal sublimation printer slow, but the high photo printing quality is enough to make up for this.
Some thermal sublimation printers have a film attaching process after three colors. That is, the special material on the ribbon is sublimated on the three layers of color and attached to the paper surface to form a protective film, which can play the role of anti-oxidation discoloration, waterproof, fingerprint and so on.
This is something that inkjet printers cannot do. The ribbon of the thermal sublimation printer is disposable. The ribbon is usually sold together with the printing paper. Each roll of the ribbon has three colors: yellow, red and blue. Therefore, although the thermal sublimation printer can also print at low resolution, the printing cost can not be reduced, only slightly increase the printing speed, it is recommended to always print at the highest resolution.