B - Operations – Transporting – 41 – M
Patent
B - Operations, Transporting
41
M
B41M 5/165 (2006.01) B41M 3/14 (2006.01) B41M 5/132 (2006.01)
Patent
CA 2060939
Carbonless coating compositions which can be printed onto one or more sheets of a business form or mailer to provide a visible image which is sharper and darker than previous coatings are provided. The compositions also find use on security documents and safety papers to provide a covert image on the document beneath information which may be subject to attempted alteration, such as the amount written on a check. The covert image becomes visible upon the application of pressure or solvent in the area coated to provide evidence of the attempted alteration. The self-contained composition includes an admixture of a color former, a color developer, and a plurality of pressure-rupturable microcapsules containing a solvent. Another solvent-sensitive composition includes an admixture of a color former and a color developer.
Dotson Mark Douglas
Parenti Frank V.
Gowling Lafleur Henderson Llp
The Standard Register Company
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