CPC G06K 19/0614 (2013.01) [B05D 5/06 (2013.01); B05D 7/52 (2013.01); G06K 7/12 (2013.01)] | 20 Claims |
1. A component including a concealed pattern, comprising:
a substrate;
a pattern disposed over at least a portion of the substrate;
an optional primer layer disposed between at least a portion of the substrate and at least a portion of the pattern; and
a visibly opaque layer comprising an infrared transparent pigment, the visibly opaque layer disposed over at least a portion of the pattern,
wherein the reflectivity and/or absorbance of infrared electromagnetic radiation by the pattern at one wavelength differs from the reflectivity and/or absorbance by the primer layer and/or the substrate at the same wavelength,
wherein the infrared transparent pigment comprises a pigment selected from the group consisting of copper phthalocyanine pigment, halogenated copper phthalocyanine pigment, anthraquinone pigment, quinacridone pigment, perylene pigment, monoazo pigment, disazo pigment, quinophthalone pigment, indanthrone pigment, dioxazine pigment, isoindoline pigment, diarylide yellow pigment, brominated anthranthrone pigment, azo metal complex pigment, and combinations thereof and/or a titanium dioxide pigment having an average particle size of from 0.1-1.0 μm; and
wherein the visibly opaque layer is substantially free of an infrared absorbing pigment and/or an infrared reflective pigment.
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