Time-dependent identification systems, methods, and uses thereof

摘要

The present disclosure provides for identification systems and related methods of use. The disclosed identification systems can include a first ink and a second ink, each of which can comprise one or more time-dependent properties. The first and second inks can be disposed in a spatial pattern on a substrate. A time-dependent property of the first ink and a time-dependent property of the second ink can cause a characteristic of the spatial pattern to change over time. For example, the spatial pattern can change from a first state at a first time to a second state at a second time. Evaluation and/or interpretation of the state of the spatial pattern at a second time can provide information about a product. Additionally, one or more of the first and second inks can include known time- and temperature-dependent properties that can be used to derive temperature related information.

主权项

1. An identification system, comprising:
a first ink comprising a time-dependent property; and a second ink comprising a time-dependent property; the first ink and second ink being disposed in a spatial pattern on a substrate; wherein the time-dependent properties of the first and second inks cause a characteristic of the spatial pattern to change from a first state at a first time to a second state at a second time, wherein interpretation of the characteristic of the spatial pattern in the second state provides identifying information about a product, and wherein a characteristic of the first ink changes from a third state at the first time to a fourth state at the second time, and a characteristic of the second ink changes from a fifth state at the first time to a sixth state at the second time, wherein the first ink comprises known time- and temperature-dependent properties such that interpretation of the first ink in the fourth state provides information about the temperature of the first ink between the first time and the second time.