| 摘要 |
<p>The invention relates to a thermal transfer ribbon (20) including a substrate (22) and a coating (24) thereon. The coating (34) includes one or more fluorescent pigments (26) and one or more color toning pigments (26) in a layer of wax material. The fluorescence of the transferred image must be greater than 10 postage meter units and have a peak wavelength of 625 ± 25 nanometers. The ribbon according to the invention is specifically designed to provide a transfer mark or image (32) which meet the criteria and requirements of postal applications.</p> |
