An ink mixture is manufactured by mixing carbon, graphite, and solvents in a mixing system which may include a Cowles disperser. The conductive portions (e.g. carbon, graphite) are evenly and universally dispersed, because an even dispersal means the conductivity of the resulting conductive strip (electrode) will be even, consistent, and reliable. The various embodiments of the ink mixture comprise a blend of different conductive pigments, including but not limited to carbon black and graphite. These embodiments must be grinded until below 6.5 Microns in particle size.

The present invention discloses a method of manufacturing a diaper that has multiple moisture sensing elements on interior side of its bottom impermeable layer or on any surface of the top permeable layer. The moisture sending elements are made by spraying conductive ink on a moving sheet of either the bottom impermeable layer or the top permeable layer, before other layers of the diaper are attached. Spraying of conductive ink on the moving sheet causes parallel lines of conductive inks to be formed on the layer. The parallel lines of conductive ink run through the entire length of either of the layers and are designed to get connected with a detecting device. When a user urinates inside the diaper, the moisture causes a closed circuit between at least two of the parallel lines of conductive inks. These formations of closed circuits, between parallel lines of conductive inks, are detected by the detecting device. Also, with increasing volume of moisture, the resistance of the closed circuits also tends to decrease. This rate of decrease of resistance is also detected by the detecting device and is used to calculate a volume of moisture present in the diaper. The detecting device then generates a suitable alarm to give an idea about the saturation level of the diaper. The process of manufacturing sensing elements by spraying conductive inks on moving sheet of layer reduces the processing and modification overhead of specially designed conductive ink printers and also does not impact the manufacturing time of a diaper manufacturing assembly line.

The present invention discloses a method of manufacturing a diaper that has multiple moisture sensing elements on interior side of its bottom impermeable layer or on any surface of the top permeable layer. The moisture sending elements are made by spraying conductive ink on a moving sheet of either the bottom impermeable layer or the top permeable layer, before other layers of the diaper are attached. Spraying of conductive ink on the moving sheet causes parallel lines of conductive inks to be formed on the layer. The parallel lines of conductive ink run through the entire length of either of the layers and are designed to get connected with a detecting device. When a user urinates inside the diaper, the moisture causes a closed circuit between at least two of the parallel lines of conductive inks. These formations of closed circuits, between parallel lines of conductive inks, are detected by the detecting device. Also, with increasing volume of moisture, the resistance of the closed circuits also tends to decrease. This rate of decrease of resistance is also detected by the detecting device and is used to calculate a volume of moisture present in the diaper. The detecting device then generates a suitable alarm to give an idea about the saturation level of the diaper. The process of manufacturing sensing elements by spraying conductive inks on moving sheet of layer reduces the processing and modification overhead of specially designed conductive ink printers and also does not impact the manufacturing time of a diaper manufacturing assembly line.

A re-usable electronics device is detachably coupled with a harness physically connected with an article whose wetness condition is to be detected. The harness comprises a set of first conductors, and the re-usable electronics device comprises a set of second conductors on its outer surface such that when the re-usable electronics device is operatively coupled with the harness by insertion in a pouch of the harness, the set of first conductors make electrical contact with the set of second conductors enabling detection of change in voltage across at least one pair of the first conductor above a threshold value. The change in the voltage occurs due to change in resistance of resistance based wetness sensors configured with the harness and operatively coupled to the set of first conductors. Upon detection of the change, the device transmits a notification indicating wetness of the article.

A personal hygiene product with a digital element includes an external personal hygiene product to absorb bodily fluids and a conductive sensor assembly disposed therein. The conductive sensor assembly includes a pair of conductive elements disposed in parallel in a mirrored image about the perimeter of the personal hygiene product and at least one connector directly contacting the pair of conductive elements, said conductive sensor assembly generating a signal indicative of fluid leakage of said personal hygiene product when fluid reaches the area between the pair of conductive elements. The conductive sensor assembly is arranged and configured to communicate with a smart hand held electronic device, either directly or through a wireless connection.

A feminine sanitary product with an end-of-use indicator for signaling to the user that the product must be replaced. Embodiments are comprised of all-natural materials that promote user safety and reduction in environmental waste. Embodiments include a tampon comprising an absorbent pledget, waterproofed removal string and natural indicator adapted to provide indicate when predetermined limits on saturation or exposure time are met. Natural visual indicator embodiments rely on a color change in the removal string. Natural sensory indicator embodiments rely on a cooling sensation to indicate end of use.

The invention relates to an absorbent article system providing volume monitoring with a large dynamic measurement range, and body position determining with a high localization precision, herewith avoiding leakages. Moreover the system relates to identification of absorbent article types in an automated manner.

A method for manufacturing an absorption product includes a pre-processing step of decreasing a contact angle of a side of a first sheet, which has a plate shape and does not pass excretion, to a water by performing corona treatment on the first sheet, and a sensing pattern forming step of forming a sensing pattern that can transmit and receive a sensing signal indicating the excretion by printing or coating a conductive ink containing water on a side of the first sheet increased in hydrophilicity through the corona treatment.

An absorption product includes a sheet part having two or more patterns that are formed to be spaced apart from each other in an excretion area, which holds excretion of a user, and conduct electricity, and a terminal unit having three or more terminals physically being in contact with the patterns and being attached/detached to/from the sheet part, in which the terminals and the patterns may be formed such that at least one terminal physically comes in contact with each of the two or more patterns spaced apart from each other when the terminal unit is mounted on the sheet part, and a sensing module generating a sensing signal sensing the excretion and providing the sensing signal to the terminals being in contact with the patterns is provided in the terminal unit.

The present invention relates to a sterilized medical dressing for treating wounds comprised of a polymer sponge containing an antimicrobial agent and a silicon adhesive secured to the dressing surface. The dressing can be exposed initially to gamma radiation and later sterilized by ethylene oxide or alternatively it can be sterilized by ethylene oxide and later irradiated by gamma radiation. z The sponge dressing can also contain at least one biofilm reducing agent, at least one chelating agent and an ionic and non-ionic surfactant.