发明名称 INFORMATION MASKING THERMOGRAPHIC SHEET
摘要 PROBLEM TO BE SOLVED: To provide an information concealing thermographic sheet for rapidly and easily visually recognizing copy information difficult to be visually recognized in a normal state by a simple method at the time of confirming it without using a special equipment such as a black-light emitting apparatus. SOLUTION: In the information masking thermographic sheet 1 comprising a thermal transfer layer 3 provided at a predetermined part of a surface of a base material 2, the layer 3 is colorless at the ambient temperature, and mainly formed of a hot-melt wax containing a temperature indicating agent including a microcapsule to be color developed by cooling and/or a thermoplastic resin.
申请公布号 JPH11129622(A) 申请公布日期 1999.05.18
申请号 JP19970315918 申请日期 1997.10.31
申请人 TOPPAN FORMS CO LTD 发明人 UMEDA MAKOTO
分类号 B41M5/337;B41M5/26;B41M5/28;B41M5/36 主分类号 B41M5/337
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