Absorbent Article Body-Facing Material Hollow Projections
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Solution Overview
Problem
Absorbent articles fail to effectively prevent leakage of body exudates, particularly low viscosity fluids like urine, due to inadequate contact and gaps between the article and the body, leading to skin contamination and discomfort.
Innovation Solution
The development of absorbent articles with a body-facing material featuring hollow projections that enhance thickness and separation from the skin, reducing skin contact and improving absorbency while maintaining softness and aesthetic appeal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the absorbent article is made flexible to conform to the wearer's body, then comfort and fit are improved, but gaps form between the article and body allowing exudates to escape
Solution Approach 1:
The body-facing material is constructed as a flexible film with integrated three-dimensional projections that can conform to the wearer's body contours while maintaining structural integrity. The flexibility of the film allows it to adapt to body movements and shapes, ensuring continuous contact and preventing gaps that would allow exudate leakage.
Solution Approach 2:
The invention transitions from a flat two-dimensional body-facing material to a three-dimensional structure with projections extending outward. This dimensional change creates a topographic surface that can accommodate body contours more effectively, maintaining contact pressure and preventing gaps while preserving flexibility.
2Shape
If embossing is used to create three-dimensionality in the body facing surface, then exudate handling is improved, but material thickness is lost and the material becomes stiff
Solution Approach 1:
The body-facing material is formed as a flexible film with three-dimensional projections that maintain the inherent flexibility of the film material. Unlike embossing which crushes and bonds material, this film-based approach preserves the material's softness and pliability while creating the desired topography for exudate management.
Solution Approach 2:
The invention uses a composite structure combining a flexible film base material with integrated three-dimensional projections. This composite approach allows the material to simultaneously provide structural topography for exudate handling and maintain the soft, flexible characteristics needed for comfort, avoiding the stiffening effect of traditional embossing.
3Quantity of substance
If the body facing material is made thinner to reduce material usage, then cost is reduced, but the ability to separate skin from exudates is diminished
Solution Approach 1:
The invention creates vertical separation between the skin and exudates by forming three-dimensional projections that extend outward from the body-facing surface. This dimensional approach allows thin material usage while still providing adequate separation distance, as the protection is achieved through height rather than material thickness.
Solution Approach 2:
The use of a flexible film with integrated projections allows for minimal material usage while maintaining effective skin-exudate separation. The film's thin profile reduces material consumption and cost, while the three-dimensional projections ensure sufficient distance between the skin and accumulated exudates.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution effectively reduces skin contact with body exudates, enhances absorbency, and provides a softer feel, minimizing leakage and skin contamination while maintaining comfort and hygiene.
Implementation Method 1
a body-facing material featuring hollow projections that enhance thickness and separation from the skin, reducing skin contact
Implementation Method 2
an absorbent body disposed between the body facing material and the outer cover for absorbing liquid that passes through the body facing material
Data Source
AI summary
A product line of absorbent articles includes a first absorbent article for a male wearer within a first size range. The first absorbent article has an outer cover, a body facing material in opposed relationship with the outer cover, and an absorbent body disposed between the body facing material and the outer cover for absorbing liquid that passes through the body facing material. The body facing material defines a male urine handling feature with a plurality of projections adapted to handle urine released by the male wearer. A second absorbent article for a female wearer is sized within the first size range. The second absorbent article includes an outer cover, a body facing material in opposed relationship with the outer cover, and an absorbent body disposed between the body facing material and the outer cover for absorbing liquid that passes through the body facing material. The body facing material defines a female urine handling feature with a plurality of projections adapted to handle urine released by the female wearer. At least a portion of the projections of the female urine handling feature has a different configuration than the projections of the male handling feature.