ONTEX BV

A substrate suitable for incorporation into an absorbent article for automatic detection of wetness events therein, the substrate comprising a first surface capable of being arranged proximal to a body facing side of the absorbent article and a second surface opposite said first surface and capable of being arranged proximal to a garment facing side of said absorbent article, said substrate comprising a plurality of sensor tracks disposed on said first surface and said sensor tracks comprising: at least one central track extending parallel to a length of the substrate and parallel to a longitudinal axis crossing a first end and a second end of the substrate; at least two side tracks extending parallel to the central track and oppositely arranged such that the central track extends therebetween; and wetness sensing tracks extending outboard of said two side tracks, wherein said central track, said side tracks, and said wetness sensing tracks are in electrical communication via one or more shortening elements positioned proximal to said second end and distal from said first end, and wherein the substrate is connectable to a clip-on data processing module at a position proximal to said first end and distal from said shortening elements such to form a closed electrical circuit, typically for measuring resistance and/or capacitance therethrough. In an embodiment said substrate consists of a liquid impermeable backsheet, preferably a breathable liquid impermeable backsheet.

A method for processing sensor signals representing a wetness event in an absorbent article, the method comprising the steps of: providing an absorbent article comprising a sensor adapted to detect wetness events therein and a first clip-on data processing module in electrical communication with said sensor; providing a database comprising a plurality of information factors, wherein said information factors comprise individualized thresholds for a plurality of absorbent article conditions, each said individualized thresholds being allocated with a corresponding warning condition; receiving from the sensor and/or clip-on data processing module sensor signals representing a plurality of real-time indicators comprising wearing time; wetness events in an absorbent article; interval time between wetness events and/or duration of said wetness event within said absorbent article; processing the sensor signals to determine an absorbent article condition; wherein processing the sensor signals includes combining the information factors with the real-time indicators and, from the sensor signals representative of each individual wetness event: (i) assigning a position of said wetness event within an x, y coordinates of the absorbent article; (ii) grouping wetness event indicators, such as amount of exudate within said wetness event, according to a common position according to step (i); (iii) normalizing the values of the real-time indicators, from the sensor signals; (iv) allocating weightings to the normalised values to generate weighted values for that wetness event; and wherein the weighted values and the grouped wetness event indicators are combined to generate a combined event indicator that is compared with the information factors and when the combined event indicator is equal to one or more of the information factors a signal is generated by the clip-on data processing module according to the one or more corresponding warning conditions.

An absorbent core comprising substantially continuous zones of one or more high fluid distribution structures and discontinuous zones of fluid absorption structures surrounding the one or more high fluid distribution structures, wherein the one or more high fluid distribution structures are arranged to distribute fluid across the absorbent core at a speed that is faster than the speed of fluid distribution across the absorbent core by said discontinuous fluid absorption structures, and wherein said continuous zones extend along a path that is substantially parallel to at least a portion of the perimeter of the core, said portion of the perimeter of the core comprising at least a portion of the sides of the core and one of the ends of the core.