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SECURITY DOCUMENTS

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专利名称:SECURITY DOCUMENTS

发明人:SHAW, JOEL, F.,VAN BEEK, GARY, A.申请号:CA9400156申请日:19940321公开号:WO9422058A3公开日:19941208

摘要:A method for making security documents using an electro photographic printer,particularly a photocopier or laser printer, includes the step of exposing the printedimage to an accelerator, in liquid or vapour form. Under the influence of the accelerator,a second dye contained in the toner, used in producing the image, migrates into thedocument, thereby producing a second image in the paper in registration with theprinted image. The process is applicable to images created on paper, security paper, andsynthetic papers.

申请人:AIT CORPORATION

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