A61F2013/15829

THREE-DIMENSIONAL NONWOVEN MATERIALS AND METHODS OF MANUFACTURING THEREOF

Three dimensional nonwoven materials and methods of manufacturing such materials are disclosed. In one embodiment, a nonwoven material may comprise a plurality of fibers, a first surface, and an apertured zone comprising: a plurality of nodes extending away from a base plane on the first surface, a plurality of connecting ligaments interconnecting the plurality of nodes, wherein a majority of the plurality of nodes include at least three connecting ligaments connecting to adjacent nodes, and a plurality of openings. The apertured zone may further comprise a lane of nodes which extends substantially in the longitudinal direction, and wherein the lane of nodes extending substantially in the longitudinal direction is formed of longitudinally adjacent nodes which are aligned such that lines drawn between centers of longitudinally adjacent nodes within the lane of nodes each form an angle with respect to the longitudinal direction of less than about 20 degrees.

THREE-DIMENSIONAL NONWOVEN MATERIALS AND METHODS OF MANUFACTURING THEREOF

Three dimensional nonwoven materials and methods of manufacturing such materials are disclosed. In one embodiment, a nonwoven material may comprise a plurality of fibers and may further comprise an opposing first surface and a second surface, an apertured zone comprising a plurality of nodes extending away from a base plane on the first surface, a plurality of connecting ligaments interconnecting the plurality of nodes, and a plurality of openings providing a percent open area for the apertured zone that is greater than about 15%, as determined by the Material Sample Analysis Test Method. The material may further comprise a first and second side zones with the nonwoven material having a material width and the first and second side zones having first and second side zone widths, and wherein each of the first and second side zone widths are between about 5% and about 25% of the nonwoven material width.

THREE-DIMENSIONAL NONWOVEN MATERIALS AND METHODS OF MANUFACTURING THEREOF

Three dimensional nonwoven materials and absorbent articles comprising such materials are disclosed. In one embodiment, an absorbent article may comprise an outer cover, a bodyside liner, an absorbent body, and a nonwoven material coupled to the bodyside liner. The nonwoven material may comprise an apertured zone providing a percent open area for the apertured zone that is greater than about 15%. The nonwoven material may be coupled to liner by a front waist bond forming a front waist bonding region which extends through the apertured zone and a rear waist bond forming a rear waist bonding region, wherein the rear waist bonding region has a length that is between about 2% and about 10% of the material length and the front waist bonding region has a length that is between about 20% and about 50% of the material length.

Method and apparatus for drying inks printed on heat sensitive absorbent article components

The present disclosure relates to methods and apparatuses for printing and drying inks on substrates. Printing systems may include a metering device positioned between a printing station and a light source. During operation, the printing station deposits ink onto a substrate to define a printed region. And the light source directs infrared light onto the substrate to define an illumination zone. The printed region is advanced from the printing station to the metering device and from the metering device through the illumination zone, wherein the ink is dried with infrared light traveling from the light source, which also heats the substrate and changes the modulus of elasticity of the substrate. In turn, the metering device isolates the printing station from the change in the modulus of elasticity to help reduce phase shifts caused by changes in the modulus of elasticity resulting from heat in the substrate.

SELF-SUPPORTING FIBERIZED WEB INCLUDING A HOT MELT COMPOSITION FOR USE IN DISPOSABLE ABSORBENT ARTICLES AND APPLICATION METHOD
20210085537 · 2021-03-25 ·

Applicants' invention includes a disposable absorbent article including a top sheet, an absorbent core, and a self-supporting fiberized web situated between the top sheet and the absorbent core, wherein the self-supporting fiberized web includes a hot melt composition and is free of absorbent materials.

Method of manufacturing a diaper with moisture sensors
20240000620 · 2024-01-04 ·

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.

Method of manufacturing a diaper with moisture sensors
20240000621 · 2024-01-04 ·

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.

MOISTURE DETECTOR USING WATER-SOLUBLE CONDUCTOR
20200246500 · 2020-08-06 ·

A disposable moisture detection component manufactured from a water soluble conductive polymer film-forming and printable mixture with a resistivity of 100 ohms or less. Moisture detection component is embedded in incontinent articles such as diapers and bedpans. Conductive polymer dissolves in the presences of urine or feces and when connected to an electronic circuit, provides diaper status to a caregiver.

Hydro-formed film with three-dimensional micro-apertures

A hydro-formed film includes a polymeric web having a first substantially planar surface and a second substantially planar surface opposite the first substantially planar surface, and a plurality of three-dimensional micro-apertures extending from the first substantially planar surface. The plurality of three-dimensional micro-apertures have a mesh count in a range of about 40 to about 75 apertures per linear inch. The hydro-formed film has a Compression Sensor Point (CSP) count of at least about 80.

METHOD AND APPARATUS FOR DRYING INKS PRINTED ON HEAT SENSITIVE ABSORBENT ARTICLE COMPONENTS
20200100948 · 2020-04-02 ·

The present disclosure relates to methods and apparatuses for printing and drying inks on substrates. Printing systems may include a metering device positioned between a printing station and a light source. During operation, the printing station deposits ink onto a substrate to define a printed region. And the light source directs infrared light onto the substrate to define an illumination zone. The printed region is advanced from the printing station to the metering device and from the metering device through the illumination zone, wherein the ink is dried with infrared light traveling from the light source, which also heats the substrate and changes the modulus of elasticity of the substrate. In turn, the metering device isolates the printing station from the change in the modulus of elasticity to help reduce phase shifts caused by changes in the modulus of elasticity resulting from heat in the substrate.