Panty Incontinence Article Elasticizing Means and Edge Contours
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Solution Overview
Problem
Incontinence articles in brief form face discomfort issues due to strong tensile stresses and skin irritation caused by elasticizing means, leading to an unpleasant fit and potential skin injuries, especially in the crotch and buttocks areas.
Innovation Solution
Designing the stomach and back sections with edge contours tapering towards the transverse central axis to create a large overlapping area with the crotch section, and using second elasticizing means that fan out in the longitudinal direction to reduce restoring forces, thereby minimizing skin irritation and improving wearability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If elasticizing means are used to achieve stretchability and body adaptation, then the incontinence article can be positioned on different body shapes, but strong tensile stresses are generated that cause skin irritation and discomfort
Solution Approach 1:
The patent applies different elasticizing strategies to different regions: the leg opening region uses elasticizing means for sealability, while the crotch and buttocks regions use relaxed chassis materials without elasticizing means to minimize skin stress. This local differentiation allows body adaptation where needed while preventing skin irritation in sensitive areas.
Solution Approach 2:
The incontinence article is divided into regions with different material properties: elasticized regions for structural support and sealability, and non-elasticized relaxed regions for comfort and skin protection. The chassis materials are segmented into those with high elastic recovery and those with low elastic recovery, allowing each region to perform its specific function.
2Reliability
If chassis materials are made highly elastic to ensure reliable side leakage protection, then the leg openings can adapt to body contours, but strong pre-tension causes ruffles and folds that irritate the skin
Solution Approach 1:
High elastic recovery materials are concentrated at the leg openings where sealability is critical for leakage protection, while the crotch and buttocks regions use low elastic recovery materials to avoid fold formation. This local quality differentiation maintains reliability where needed while eliminating harmful folds in contact areas.
3Adaptability or versatility
If elasticizing means are applied in the stretch-bond process to achieve continuous elastification, then the article can be stretched to fit body shapes, but the pretensioning causes uncomfortable tightness and skin injuries
Solution Approach 1:
The patent selectively applies elasticizing means only to specific regions (leg openings and hip area) where structural integrity and sealability are needed, while leaving the crotch and buttocks regions without elasticizing means. This creates a gradient of elasticity that maintains fitting capability while ensuring comfort in high-contact areas.
Solution Approach 2:
The chassis is segmented into elasticized zones for structural support and non-elasticized zones for comfort. The stretch-bond process is applied selectively rather than uniformly, creating distinct material zones with different elastic properties to balance fitting and comfort requirements.
4Adaptability or versatility
If the entire chassis is elasticized to maximize stretchability, then the incontinence article can accommodate different body sizes, but the strong tensile stresses reduce breathability and create humid microclimate
Solution Approach 1:
Relaxed non-woven materials without elasticizing means are used in the crotch and buttocks regions where breathability is critical for moisture management, while elasticized materials are used in peripheral regions for size accommodation. This local differentiation maintains breathability in contact areas while achieving size adaptability overall.
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 reduces skin irritation and discomfort by allowing greater stretchability without increasing restoring forces, resulting in improved wearing comfort and fewer folds, thus enhancing the overall fit and usability of the incontinence article.
Implementation Method 1
elasticizing means, in particular in the form of tapes or threads, often referred to as Lycra threads, are connected to the chassis materials of the incontinence article in a pre-stretched state
Data Source
Figure 1
Figure 2~3
Figure 4~6
AI summary
The invention relates to a panty-type incontinence article (2) for absorbing bodily discharges, comprising a front stomach section (4) and a rear back section (6) that are connected to one another by the manufacturer to form a stomach and back band that is continuous in the transverse or hip circumferential direction (16) having a hip opening (18) closed in the hip circumferential direction in side seam areas (14) on both sides, and comprising a crotch section (8) having an absorption body (7), said crotch section extending in the longitudinal direction (9) between the stomach section (4) and the back section (6) and being permanently connected to the stomach section (4) and the back section (6), wherein the crotch section (8) and the stomach section (4) and the back section (6) define leg openings (19) of the incontinence article and, to this end, the stomach section (4) and the back section (6) comprise an edge contour (32, 34) deviating from the transverse or hip circumferential direction (16) and extending towards a transverse central axis (30) of the crotch section (8) for defining the leg openings (19). In the stomach section (4) and the back section (6), first elastifying means (28) are provided that extend at a distance from one another in a parallel fashion in the transverse or hip circumferential direction (16), thus elastifying the stomach region (4) and back region (6) in a planar fashion, wherein second elastifying means (40, 42) are provided in an area (22, 26) of the stomach region (4) and back region (6) on the crotch side and facing the leg openings (19), said second elastifying means extending from both side seam regions (14) toward a longitudinal central axis (44) of the incontinence article, thus fanning out from one another in an arc shape at an increasing distance from one another, and wherein the restoring force occurring in said crotch-side area (22, 26) of the stomach section (4) and the back section (6) facing the leg openings with a fanning path of the second elastifying means (40, 42) upon the planar stretching of said area (22, 26) is lower than occurs upon planar stretching in a hip area (20, 24) in which only the first elastifying means (28) are provided.