Printed Sun Exposure Sensor With Fluorescent Toner For Disposable/Single Use

A sun exposure sensor for disposable or single use comprising:

• a first substrate having an upper surface and a lower surface;
• a sun exposure sensing portion disposed on the upper surface of the first substrate, the sun exposure sensing portion comprising a fluorescent toner image, wherein the fluorescent toner image increasingly fades upon exposure to sunlight;
• a second substrate having an upper surface and a lower surface;
• and
• a sun exposure scale disposed on the upper surface of the second substrate, the sun exposure scale comprising an evaluation image for evaluating an amount of fading of the fluorescent toner image.

A process for preparing a sun exposure sensor, the process comprising:

• providing a substrate having an upper surface and a lower surface;
• disposing a sun exposure sensing portion on the upper surface of the substrate, the sun exposure sensing portion comprising a fluorescent toner image, wherein the fluorescent toner image increasingly fades upon exposure to sunlight;
• and
• disposing a sun exposure scale on the upper surface of the substrate, the sun exposure scale comprising an evaluation image for evaluating an amount of fading of the fluorescent toner image.