Compositions: coating or plastic – Coating or plastic compositions – Marking
Patent
1998-12-23
2000-12-12
Klemanski, Helene
Compositions: coating or plastic
Coating or plastic compositions
Marking
106 3132, 106 3164, 283 94, 283100, 283101, 283903, C09D 1100, B42D 1500
Patent
active
061592749
ABSTRACT:
The present invention provides a coloring mechanism in which hidden letters (including numbers), figures, symbols, images etc. appear by rubbing the surface with metal such as coins etc., and to a recording material provided with this mechanism. In the coloring mechanism of the invention, letters etc. are indicated on a recording face by an ink etc. containing an inorganic pigment with a Mohs hardness of 2 or more, so as to have the same color as or a similar color to the recording face, and the letters etc. are colored to be readable by rubbing with metal the recording face containing the letters etc.
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Kanazaki Takeshi
Sato Kazuo
Klemanski Helene
Nisshinbo Industries Inc.
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