초록 ▼

A business document contains a removable decal. The decal has a plastic substrate overlaid with a reflective coating including an aluminum coating and glass beads. A toner receptor coating overlies the reflective coating. A fine screen pattern is printed on the toner coating and which pattern may in

A business document contains a removable decal. The decal has a plastic substrate overlaid with a reflective coating including an aluminum coating and glass beads. A toner receptor coating overlies the reflective coating. A fine screen pattern is printed on the toner coating and which pattern may include jagged lines or closely spaced dots. Variable and non-variable information is then printed on the toner receptive coating. In the event of use of a solvent to alter the printed information on the decal, the fine printed screen pattern is likewise disrupted and evidences alteration of the decal.

대표청구항 ▼

[ What is claimed is:] [1.] A tamper evidencing security document comprising:a plastic substrate;reflective material disposed on one side of said substrate;a toner receptive coating on said one side overlying said reflective material;a visible pattern printed on said toner receptive coating and susc

[ What is claimed is:] [1.] A tamper evidencing security document comprising:a plastic substrate;reflective material disposed on one side of said substrate;a toner receptive coating on said one side overlying said reflective material;a visible pattern printed on said toner receptive coating and susceptible to disruption by application of a solvent to said one document side;information printed on said pattern and susceptible of removal from the document by application of the solvent; andan adhesive on an opposite side of said substrate from said one side for securing the document to a paper substrate;whereby, upon application of the solvent, at least part of the printed information is removed and the pattern is disrupted, thereby visibly evidencing tampering of the security document. [3.] A document according to claim 1 in combination with a paper substrate having a release liner secured thereto with said adhesive overlying said release liner to releasably secure the document to the paper substrate.