Tamper-evident label

Patent metadata

Field	Value
Publication number	US-12008926-B2
Application number	US-202117374768-A
Country	US
Kind code	B2
Filing date	Jul 13, 2021
Priority date	Oct 19, 2018
Publication date	Jun 11, 2024
Grant date	Jun 11, 2024

Abstract

A label is provided with a warning layer coating integrated or applied to a front side of the label. The warning layer coating is not activated by application of heat; rather, the warning layer coating activates upon a directional force (vertical or horizontal puffing) applied to the label after the label was initially adhered to a container, bag, box, and/or object. Upon activation, visible color or a printed warning indicia is visible on a front surface of the label, providing evidence that the label was removed after initial application or providing evidence that the label was attempted to be removed after initial application.

First claim

The invention claimed is:

1. A label roll, comprising:
a substrate;
a plurality of labels defined within portions of the substrate; and
each label comprises:
a thermally-sensitive coating disposed on a frontside of the substrate;
a warning layer coating disposed on the frontside of the substrate; and
an adhesive coating disposed on a backside of the substrate;
wherein the warning layer coating comprises heat-resistant capsules, each heat-resistant capsule comprises a food safe liquid within a shell membrane;
wherein the food safe liquid within the corresponding shell membrane of each heat-resistant capsule exhibits no color;
wherein the food safe liquid exhibits a non-white color on the frontside of the substrate when the corresponding shell membranes of the heat-resistant capsules are ruptured by a directional force applied to each label and the food safe liquid combine together on the frontside of the substrate.

2. The label roll of claim 1 further comprising a liner affixed to the backside of each of the plurality of labels via the adhesive coating of each label.

3. The label roll of claim 1 , wherein for each label, the warning layer coating is applied on top of the thermal-sensitive coating.

4. The label roll of claim 2 , wherein for each label, the warning layer is applied as patches of the heat-resistant capsules on top of the thermal-sensitive coating.

5. The label roll of claim 1 , wherein for each label, the food safe liquid is an edible ink.

6. The label roll of claim 1 , wherein for each label, the directional force is sufficient to rupture the corresponding shell membrane of the heat-resistant capsules when an attempt is made to remove each corresponding label once each label is affixed to a surface by the adhesive coating.

Assignees

• Iconex Llc

Inventors

• Shinkle Ii Robert L
• Greason Karolyn

Classifications

• G09F2003/0283

  food-compatible or edible · CPC title

• G09F2003/0213

  Concealed data · CPC title

• G09F2003/0211

  Transfer or thermo-sensitive · CPC title

• G09F2003/028

  Labels containing microcapsules, e.g. ink microcapsules for indicia transfer · CPC title

• B32B2519/00

  Labels, badges · CPC title