| 摘要 |
<p>The disclosed invention provides a combined laminating, cutting and applying apparatus and method to manufacture time temperature indicator (TTI) labels for sensitive commodity items, wherein a chemical reaction occurs within the labels. The combined apparatus comprises a plurality of rollers withdrawing layers with chemicals that are being brought in contact by a presser. Whern the reactants are being pressed together, a temperature or time or both sensitive reaction starts between the layers. The labels are being cut and immediately adhered on a commodity item that is also sensitive to time/temperature parameters so as to visually indicate the conditions to which the label had been exposed.</p> |
