Tyrian purple sea salt in the dye vat and adding potash, he was able to successfully dye wool a deep purple colour. Recent research in organic electronics has shown that Tyrian purple is an ambipolar organic semiconductor. Transistors and circuits based on this material can be produced from sublimed thin-films of the dye. The good semiconducting properties of the dye originate from strong intermolecular hydrogen bonding that reinforces pi stacking necessary for transport. True Tyrian purple, like most high-chroma pigments, cannot be accurately rendered on a standard RGB computer monitor. Ancient reports are also not entirely consistent, but these swatches give a
Dye-sublimation printer crack, fade or peel from the substrate under normal conditions. The most common process lays one colour at a time, the dye being stored on a polyester ribbon that has each colour on a separate panel. Each coloured panel is the size of the medium that is being printed on; for example, a 6" by 4" dye sub printer would have four 6" by 4" panels. During the printing cycle, the printer rollers will move the medium and one of the coloured panels together under a thermal printing head, which is usually the same width as the shorter dimension of