Humidity indicating card
A humidity indicating card includes a humidity indicator and a security device.
1. A humidity indicating card comprising:
a humidity indicator at a first surface of the humidity indicating card; and
a security device affixed to a second surface of the humidity indicating card, the first surface and the second surface facing different directions.
2. The humidity indicating card of claim 1 , further comprising a plurality of stacked sheets.
3. The humidity indicating card of claim 1 , wherein the security device comprises at least one of a radio frequency identification device, an ultrahigh frequency sensor, an electronic article surveillance tag, and an electronic humidity recording tag and/or inlay.
4. The humidity indicating card of claim 1 , wherein the security device is affixed to the humidity indicating card by an adhesive.
5. The humidity indicating card of claim 4 , wherein the adhesive comprises at least one of a double-sided tape, a single-sided tape, a printed tag, an adhesive backing, and a hot melt adhesive.
6. The humidity indicating card of claim 4 , wherein the adhesive is at a periphery of the security device.
7. The humidity indicating card of claim 6 , wherein the adhesive comprises hot melt adhesive.
8. The humidity indicating card of claim 4 , wherein the adhesive surrounds an entire upper surface of the security device.
9. The humidity indicating card of claim 8 , wherein the adhesive comprises single-sided tape.
10. The humidity indicating card of claim 9 , wherein the adhesive extends beyond each edge of the security device about two millimeters.
11. The humidity indicating card of claim 1 , further comprising an information section comprising a plurality of parallel lines.
12. The humidity indicating card of claim 1 , wherein the humidity indicator comprises three indicating dots.
13. The humidity indicating card of claim 1 , further comprising a fiber composite.
14. The humidity indicating card of claim 1 , wherein the humidity indicator comprises cobalt chloride, cobalt salts, bromide salt, and/or an indicating dye.
15. A humidity control system comprising:
a package housing a humidity controlling substance; and
a humidity indicating card affixed to the package,
wherein the humidity indicating card comprises:
a humidity indicator at a first surface of the humidity indicating card; and
a security device affixed to a second surface of the humidity indicating card, the first surface and the second surface facing different directions.
16. The humidity control system of claim 15 , wherein the humidity controlling substance comprises a humectant, a desiccant, and/or an oxygen absorber.
17. The humidity control system of claim 15 , wherein the security device comprises at least one of a radio frequency identification device, an ultrahigh frequency sensor, an electronic article surveillance tag, and an electronic humidity recording tag and/or inlay.
18. A humidity indicating card comprising:
a humidity indicator;
a plurality of stacked sheets; and
a security device embedded between adjacently stacked sheets from among the plurality of stacked sheets.