초록 ▼

There is provided a time temperature device having an indicator layer which visually indicates the lapse of a time temperature integral. A signaling component is provided which, upon contact with the indicating layer, causes the indicator layer to undergo a visually perceptive change. The device fur

There is provided a time temperature device having an indicator layer which visually indicates the lapse of a time temperature integral. A signaling component is provided which, upon contact with the indicating layer, causes the indicator layer to undergo a visually perceptive change. The device further includes a reservoir for the signaling component, including a first backing and adhesive layer containing an adhesive substance. The adhesive layer is positioned between the indicating layer and the first backing.

대표청구항 ▼

A time-temperature indicating device for visually indicating the passage of a certain time-temperature interval, characTerized in that it comprises (a) an indicator layer which visually indicates the lapse of a time-temperature interval; (b) a signaling component which upon contact with the indicato

A time-temperature indicating device for visually indicating the passage of a certain time-temperature interval, characTerized in that it comprises (a) an indicator layer which visually indicates the lapse of a time-temperature interval; (b) a signaling component which upon contact with the indicator layer causes the latter to undergo a visually perceptible change; and (c) a reservoir for the signaling component, which reservoir comprises a first backing and an adhesive layer containing a pressure sensitive adhesive substance, which adhesive layer is positioned between the indicator layer and the first backing; said signaling component is dissolved in the pressure sensitive adhesive substance.