Thermal Dye Transfer

Thermal dye transfer (dye sublimation or thermal dye sublimation, though the term is technically inaccurate, since no sublimation takes place) has been around for decades. It employs heat to melt cellophane-like color ribbons and then migrates the dye to the special (usually glossy) paper. Using three- or four-color ribbons (see the discussion later in this chapter regarding CMY and CMYK), each color is laid down individually, which means the paper passes through the printer three or four times. So don't try to grab it as it comes out of the paper slot, until the print is completely ejected. Most modern dye subs add another layer, of laminate or UV protection, to protect the print and increase its longevity. The colors meld into each other, creating a true continuous tone, and dye sub photos tend to be among some of the most brilliant, beautiful prints, often are used for exhibitions. The media is relatively expensive, and colors will tend to shift or fade within a few years.

0 0

Post a comment