SUBSTRATE FLUORESCENCE MASK FOR EMBEDDING INFORMATION IN PRINTED DOCUMENT
PROBLEM TO BE SOLVED: To provide detection of forgery of, illegal change and/or duplication of documents.SOLUTION: A fluorescent mark indicator includes: a substrate containing optical brightening agents; a first colorant printed as an image on a paper substrate and providing a property of strongly...
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Main Authors | , |
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Format | Patent |
Language | English |
Published |
13.09.2012
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Subjects | |
Online Access | Get full text |
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Abstract | PROBLEM TO BE SOLVED: To provide detection of forgery of, illegal change and/or duplication of documents.SOLUTION: A fluorescent mark indicator includes: a substrate containing optical brightening agents; a first colorant printed as an image on a paper substrate and providing a property of strongly suppressing substrate fluorescence, as well as a property of low contrast under normal illumination against the substrate; and a second colorant printed as an image on the substrate in substantial spatial proximity to the first printed colorant, such that the resultant colorant substrate image suitably exposed to an ultra-violet light source, yields a discernable image evident as a fluorescent mark. |
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AbstractList | PROBLEM TO BE SOLVED: To provide detection of forgery of, illegal change and/or duplication of documents.SOLUTION: A fluorescent mark indicator includes: a substrate containing optical brightening agents; a first colorant printed as an image on a paper substrate and providing a property of strongly suppressing substrate fluorescence, as well as a property of low contrast under normal illumination against the substrate; and a second colorant printed as an image on the substrate in substantial spatial proximity to the first printed colorant, such that the resultant colorant substrate image suitably exposed to an ultra-violet light source, yields a discernable image evident as a fluorescent mark. |
Author | ESCHBACH REINER BALA RAJA |
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Notes | Application Number: JP20120129066 |
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Snippet | PROBLEM TO BE SOLVED: To provide detection of forgery of, illegal change and/or duplication of documents.SOLUTION: A fluorescent mark indicator includes: a... |
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SubjectTerms | BOOK COVERS BOOKBINDING DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDEDFOR FILES IMPREGNATING OR COATING OF PAPER LOOSE LEAVES MOVABLE-STRIP WRITING OR READING APPARATUS PAPER NOT OTHERWISE PROVIDED FOR PAPER-MAKING PERFORMING OPERATIONS PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITYFEATURES PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOTOTHERWISE PROVIDED FOR PRODUCTION OF CELLULOSE PULP COMPOSITIONS SPECIAL PRINTED MATTER TEXTILES TRANSPORTING TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G |
Title | SUBSTRATE FLUORESCENCE MASK FOR EMBEDDING INFORMATION IN PRINTED DOCUMENT |
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