Pants Diaper Elastic Pocket for Loose Stool Containment
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Solution Overview
Problem
Conventional pants-type disposable diapers struggle to contain loose stool or diarrhea effectively, leading to widespread soiling and lateral leakage, which causes discomfort and hygiene issues for wearers and caregivers.
Innovation Solution
The design incorporates a diaper main body with a crotch-crossing first elastic member and a back-side crotch-crossing second elastic member, forming a pocket at the bottom or back of the diaper to trap loose stool or diarrhea, with the second elastic member spaced from the first to prevent leakage and allow for effective absorbency by the absorbent core.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional pants-type disposable diaper is used, then the diaper structure is simple, but loose stool or diarrhea stool spreads in a wide range on the diaper causing lateral leakage
Solution Approach 1:
The diaper is divided into distinct functional zones: a front part with a first elastic member for normal urine containment, and a back part with a second elastic member configured to form a pocket for receiving loose stool. This segmentation allows each part to specialize in handling different types of excrement, improving overall containment reliability without requiring a complete redesign of the entire diaper structure.
Solution Approach 2:
The second elastic member is configured to extend not only in the width direction but also in the front-back direction, creating a three-dimensional pocket structure at the back of the diaper. This dimensional extension transforms the traditional two-dimensional diaper surface into a multi-level structure that can physically trap and contain loose stool, preventing it from spreading laterally across the diaper surface.
2Reliability
If the second elastic member is disposed close to the first elastic member, then the diaper structure is compact, but the pocket formation is impaired and stretching/contracting is restricted
Solution Approach 1:
The second elastic member is positioned at a specific distance from the first elastic member to create optimal local conditions for pocket formation. This spatial arrangement ensures that the second elastic member has sufficient freedom to stretch and contract independently, forming an effective pocket structure without being constrained by the first elastic member, while still maintaining a compact overall diaper structure.
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
This configuration effectively contains loose stool or diarrhea, reducing the risk of lateral leakage and discomfort, while allowing the absorbent core to absorb fluids slowly, thus maintaining hygiene and preventing wide-ranging soiling.
Implementation Method 1
an absorbent core disposed at the crotch part
Implementation Method 2
allowing the absorbent core to absorb fluids slowly
Implementation Method 3
a second elastic member disposed continuously to the diaper main body so as to be spaced from the first elastic member, and having a second crotch-crossing part which extends across the crotch part
Data Source
AI summary
A pants-type disposable diaper 1 comprising: a diaper main body 2 having a front part P, a back part Q, and a crotch part R therebetween, and having a waist opening 3 and a pair of leg openings 4; an absorbent core 10 disposed at the crotch part R; a first elastic member 13 having a first crotch-crossing part 13A which extends intermittently across the crotch part R and a first leg opening edge part 13B which extends along edges 15 of a front side of the both leg openings 4; and a second elastic member 14 disposed continuously so as to be spaced from the first elastic member 13, and having a second crotch-crossing part 14A which extends across the crotch part R and a second leg opening edge part 14B which extends along edges 15 of a back side of the both leg openings 4.