Front Waist Guard Pocket for Side-Lying Leakage Control
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Solution Overview
Problem
Absorbent articles, particularly pant-type articles, face significant leakage issues through the side panels in the waist region, especially when wearers lie on their side, as existing designs fail to effectively manage large volumes of liquid exudates.
Innovation Solution
Incorporation of an absorbent article with a front waist guard (FWG) and elasticized barrier leg cuffs, featuring an acquisition system extending under the barrier leg cuffs to enhance absorption and a front pocket with an acquisition system along at least 10% of its length, along with a front waist guard to prevent leakage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a front waist guard is added to prevent leakage, then leakage protection is improved, but device complexity increases
Solution Approach 1:
The front waist guard is integrated with the absorbent main body as a unified structure, combining the protective function with the existing absorbent article design. The guard forms a pocket that extends from the front waist edge toward the crotch region, merging leakage protection with the absorbent containment function rather than adding a separate independent component.
Solution Approach 2:
The front waist guard is divided into functional segments: a pocket portion for liquid containment, an acquisition system portion for rapid absorption, and integration portions attaching to the absorbent main body. This segmentation allows each portion to optimize its specific function while maintaining overall structural coherence.
2Speed
If an acquisition system is extended under the barrier leg cuffs, then absorption speed is improved, but device complexity increases
Solution Approach 1:
The acquisition system is positioned and extended under the barrier leg cuffs in advance, creating a pre-configured rapid absorption pathway. This preliminary arrangement ensures that when liquid exudates contact the barrier leg cuffs, they are immediately channeled to the acquisition system for rapid absorption, eliminating delays in the absorption process.
Solution Approach 2:
The acquisition system acts as an intermediary component between the barrier leg cuffs and the absorbent core. It receives liquid exudates from the barrier leg cuffs and facilitates their rapid transfer to the absorbent core, mediating the absorption process to enhance speed without requiring direct contact between the barrier and the bulk absorbent material.
3Reliability
If the front pocket length is increased to improve absorption coverage, then leakage protection is improved, but manufacturing cost increases
Solution Approach 1:
The acquisition system is concentrated in specific high-risk areas where liquid exudates are most likely to contact the barrier leg cuffs, rather than uniformly distributing absorbent material throughout the entire front waist guard. This localized placement optimizes leakage protection at critical points while minimizing overall material consumption.
Solution Approach 2:
The front pocket extends partially toward the crotch region (covering at least 10% of the front pocket length) to provide sufficient protection without requiring full-length extension. This partial action approach achieves adequate leakage protection while reducing the quantity of absorbent material needed compared to a full-length design.
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 design effectively reduces leakage by quickly absorbing and distributing liquid exudates, even when wearers are in non-traditional positions, ensuring better containment and comfort.
Implementation Method 1
the acquisition system is provided in the front pocket along at least 10% of the front pocket length (FPL)
Implementation Method 2
elasticized barrier leg cuffs extending at least partially between the end edges along both longitudinally extending side edges of the absorbent main body in the crotch region, and extending into the front and back waist region
Data Source
AI summary
An absorbent article having a front waist region, a back waist region and a crotch region extending longitudinally between the front and back waist region. The absorbent article comprises an absorbent main body with an absorbent core, and an acquisition system. A front waist guard is disposed in and attached to the front waist region such that a front pocket is formed, the front pocket extending along the longitudinal direction from a closed base line at or adjacent to the front waist edge towards an open edge.