SEALING LABEL FOR FORGERY DETERMINATION

摘要

PROBLEM TO BE SOLVED: To provide a sealing label for forgery determination capable of easily performing a forgery determination with never opening an object to be sealed by determining the forgery of the sealing label itself without removing and destroying the sealing label.SOLUTION: The sealing label for forgery determination includes: a first dye precursor on one surface of a support body; a second dye precursor developing a color tone different from the first dye precursor; heat sensitive color developing layer containing a color developer; and a sealing label for forgery determination including an adhesive agent layer on the other surface of the support body. Both of the first dye precursor and the second dye precursor develop a color and exhibit a mixed color when thermal recording is printed by a thermal head, and exhibits a color tone different from the color tone when the thermal recording is printed by the thermal head when the forgery is determined.