The present invention relates to wetness indicator compositions that comprise at least one leuco dye and one color developer in a hot-melt adhesive matrix. Upon contact with water or with water-containing fluids, said wetness indicator compositions are apt to change their color from a colorless state to a colorful state or from a first colored state to a second colored state having a color different from the first one; in particular, from a first colorless, white, or translucent state to a second state having a visible color, or vice versa. The disclosed wetness indicator compositions can be used as wetness/fluid indicators in various applications, e.g. in packaging articles and in absorbent articles; in an absorbent mat or sheet or operatory cloth for medical use; in a wound dressing product; in an absorbent mat or sheet for food products.

The present invention relates to wetness indicator compositions that comprise at least one leuco dye and one color developer in a hot-melt adhesive matrix. Upon contact with water or with water-containing fluids, said wetness indicator compositions are apt to change their color from a colorless state to a colorful state or from a first colored state to a second colored state having a color different from the first one; in particular, from a first colorless, white, or translucent state to a second state having a visible color, or vice versa. The disclosed wetness indicator compositions can be used as wetness/fluid indicators in various applications, e.g. in packaging articles and in absorbent articles; in an absorbent mat or sheet or operatory cloth for medical use; in a wound dressing product; in an absorbent mat or sheet for food products.

Methods and apparatus for monitoring the content of a chamber of a container via electrical capacitive tomography (ECT) or acoustic imaging are presented. The three-dimensional volume of the chamber and its content are imaged by developing a map of permittivity or acoustic impedance by (1) applying a stimulus signal between each of a plurality of electrode pairs of a plurality of electrodes that is arranged about the chamber and (2), for each stimulus signal applied, measuring a response signal at each of the remaining electrodes of the plurality. Once the map of permittivity or acoustic impedance is established, the number and type of tablets (or liquid) within the chamber is determined.

Methods and apparatus for monitoring the content of a chamber of a container via electrical capacitive tomography (ECT) or acoustic imaging are presented. The three-dimensional volume of the chamber and its content are imaged by developing a map of permittivity or acoustic impedance by (1) applying a stimulus signal between each of a plurality of electrode pairs of a plurality of electrodes that is arranged about the chamber and (2), for each stimulus signal applied, measuring a response signal at each of the remaining electrodes of the plurality. Once the map of permittivity or acoustic impedance is established, the number and type of tablets (or liquid) within the chamber is determined.

Embodiments provide for an impact force gauge that includes a track and a shell that is designed to flex from a first state to a second state when a force exceeding a predetermined threshold is applied along a given axis and that is designed to return to the first state when the force falls below the predetermined threshold along the given axis. A roller is located in the shell and has a diameter such the roller is allowed or blocked from moving to different locations in the impact force gauge based on the force applied thereto. Based on the presence or absence of the roller along different portions of the track, the force gauge wirelessly transmits an indication of whether the force gauge has been exposed to a force that exceeds the predetermined threshold.

Embodiments provide for an impact force gauge that includes a track and a shell that is designed to flex from a first state to a second state when a force exceeding a predetermined threshold is applied along a given axis and that is designed to return to the first state when the force falls below the predetermined threshold along the given axis. A roller is located in the shell and has a diameter such the roller is allowed or blocked from moving to different locations in the impact force gauge based on the force applied thereto. Based on the presence or absence of the roller along different portions of the track, the force gauge wirelessly transmits an indication of whether the force gauge has been exposed to a force that exceeds the predetermined threshold.

A tool holder contains: a connector and a fixer. The connector includes at least one body, and each of the at least one body has a first side plate, a second side plate, and a connection plate. The first side plate has a first fitting portion, and the second side plate has a second fitting portion. The first fitting portion and the second fitting portion define a square fitting zone, and the first side plate further has a first locking projection. Between the first fitting portion and the second fitting portion is defined a cavity so that the first fitting portion and the second fitting portion deform inwardly, and so that the first locking projection retract into the fitting zone. The fixer is housed in the cavity of the connector to limit an inward deformation of the first fitting portion and the second fitting portion.

The present invention is directed to a smart metal, glass, paper-based, wood-based, or plastic packaging comprising at least one sensor or communication device, characterized in that a structural component of the packaging forms a component of the at least one sensor or communication device. In addition, the present invention is directed to a method for manufacturing a smart packaging is provided comprising the steps of manufacturing a packaging and constituting at least one sensor or communication device on or in the packaging, wherein a structural component of the packaging is taken for constituting a component of the at least one sensor or communication device.

A tilt indicator includes a housing having a tilt detection assembly, switch circuitry, and a radio-frequency identification (RFID) module coupled to the switch circuitry. Responsive to the tilt detection assembly being subjected to a tilt event exceeding a threshold, the switch circuitry causes a change in a value output by the RFID module when activated.

The present invention provides devices for real-time, continuous, detection of spoilage and freshness of food products.