Thermal transfer dyesheet and printer
AssigneesEvolis, ITW Limited
InventorsJeffrey Howell, Serge Olivier
Life of this patent
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Abstract
A thermal transfer dyesheet comprising a substrate bearing a region of a thermally transferable dye, the region including a first printable portion within the region having a first optical density, a second printable portion within the region having a second optical density, the difference in optical density between the first and second optical densities being detectable by a detection means on a dyesheet printer, and a third printable portion within the region having an optical density substantially the same as that of the first printable portion is provided, together with a method for manufacture of the dyesheet and an associated printer.
Claims13
A thermal transfer dyesheet comprising a substrate bearing a plurality of coloured panels of thermally transferable dye, a coloured panel including
- a first printable portion within the coloured panel having a first optical density,
- a second printable portion within the coloured panel having a second optical density, the difference between the first and second optical densities being detectable by a detection means on a dyesheet printer, and
- a third printable portion within the coloured panel having an optical density substantially the same as that of the first printable portion.
Dependencies are inferred from the claim text.