초록 ▼

A tamper evident over-wrap is disclosed which employs a multi-layered system including three overlapping layers of containment material and two interleaved layers of reactive material, at least one of which is a gel. Upon formation of an opening of the middle layer of containment material, the previ

A tamper evident over-wrap is disclosed which employs a multi-layered system including three overlapping layers of containment material and two interleaved layers of reactive material, at least one of which is a gel. Upon formation of an opening of the middle layer of containment material, the previously-isolated layers of reactive material will intermingle and react. These materials react to form a color change. By using a gel, manifestations of tampering attempts are considerably enhanced.

대표청구항 ▼

A tamper evident wrap for a container, comprising: a. three over-lapping layers of containment material: a transparent outer containment layer situated farthest from the container, a middle containment layer, and an inner containment layer situated closest to the container, and b. two layers of two

A tamper evident wrap for a container, comprising: a. three over-lapping layers of containment material: a transparent outer containment layer situated farthest from the container, a middle containment layer, and an inner containment layer situated closest to the container, and b. two layers of two separate reactive materials separated by said layers of containment material bonded at their edges to completely encompass and isolate each layer of reactive material: an inner layer of one of said reactive materials contained between said inner containment layer and said middle containment layer and an outer layer of the other of said reactive materials contained between said outer containment layer and said middle containment layer, which reactive materials are separated from one another by said middle containment layer and are in contact with said middle containment layer, wherein: i. at least one of said reactive materials is a gel, ii. the other of said reactive materials is capable, upon formation of an opening formed by tampering in said middle containment layer, of migrating through said opening and spreading laterally through said reactive gel layer, and iii. said separate reactive materials are capable to undergoing a color change upon contact with one another.