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.
申请公布号
WO8910268(A1)
申请公布日期
1989.11.02
申请号
WO1989US01604
申请日期
1989.04.17
申请人
NCR CORPORATION
发明人
TALVALKAR, SHASHI, G.;OBRINGER, THOMAS, J.;PUCKETT, RICHARD, D.