Packaged film with time-temperature indicator
A packaged photographic product (50) is disclosed comprising a) a silver halide based photographic material contained within a packaging enclosure (51), and b) a time and temperature integrating device (53) for providing a visually observable indication of cumulative thermal exposure which is remova...
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Format: | Patent |
Sprache: | eng |
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Zusammenfassung: | A packaged photographic product (50) is disclosed comprising a) a silver halide based photographic material contained within a packaging enclosure (51), and b) a time and temperature integrating device (53) for providing a visually observable indication of cumulative thermal exposure which is removably attached to the packaging enclosure with a pressure sensitive adhesive. In accordance with a preferred embodiment, the packaged photographic product further comprises an outer enclosure such as box (54), and the packaging enclosure comprises a second enclosure (51) within the outer enclosure, and the time and temperature integrating device (53) is removably attached to the second enclosure with a pressure sensitive adhesive, and is visible through a transparent or open section (55) of the outer enclosure. In accordance with a second embodiment of the invention, a process for monitoring the thermal exposure of a silver halide based photographic material prior to and after loading in a photographic camera (56) is disclosed comprising a) removably attaching with a pressure sensitive adhesive a time and temperature integrating device for providing an indication of cumulative thermal exposure on a surface of an enclosure (51) containing the photographic material, b) loading the photographic material in a photographic camera, and c) transferring the time and temperature integrating device (53) from the surface of the enclosure to a surface of the camera at the time of loading the camera with the photographic material. After exposure and unloading of the film, the label can be reattached to the package. |
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