| 摘要 |
<p>An apparatus for reapplying dye to a dye donor element (28,30,32) of a dye transfer thermal printer comprises a reservoir (16,18,20) of dye and binder including a diffusion-controlled permeation polymer or copolymer membrane through which only the dye is transferred to the element. - An apparatus for reapplying dye to a dye donor element of a dye transfer thermal printer comprises a printing station at which the dye is image-wise transferred from a dye donor element (28,30,32) to a receiver medium, at least partly depleting the element of dye and a reservoir of dye and binder (16,18,20). Dye is transferred from the reservoir to the element and separated from the binder by diffusion through a diffusion-controlled permeation membrane comprising a linear, branched and/or crosslinked polymer or copolymer.</p> |
