Elasticised Absorbent Article with Crotch Barriers for Leak Reduction
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing absorbent articles, particularly incontinence pants, face challenges in providing a snug fit around the groin region while maintaining freedom of movement and reducing leakage, especially in the front part of the article.
Innovation Solution
Incorporating one or more side barriers along the crotch region with leg cuffs and elastics that provide tension parallel to the longitudinal axis, enhancing the fit and reducing leakage risk.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If elastic web material is contractibly connected to the waist regions to provide tension, then the fit and security against leakage are improved, but the freedom of movement and wearer comfort deteriorate
Solution Approach 1:
The patent applies elastic web material selectively to specific regions (waist regions and crotch region) rather than uniformly across the entire absorbent article. This localized application provides tension and security where needed while leaving other areas more flexible, thus maintaining freedom of movement. The elastic web material is contractibly connected to the waist regions and extends into the crotch region, creating zones of controlled tension that improve fit without restricting overall mobility.
2Reliability
If the front waist region geometry is optimized for snug fit, then the fit in the groin region is improved, but the complexity of the article geometry increases
Solution Approach 1:
The patent employs asymmetric geometry in the front waist region, where the first and second front waist-leg-peripheral-edges are configured with different characteristics relative to the longitudinal axis. This asymmetric design allows the article to conform better to the natural anatomy of the groin region, providing a snugger fit. The elastic web material is also arranged asymmetrically, with different extension patterns on either side of the midline, optimizing the fit without requiring overly complex geometric features.
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 provides improved fit and reduced leakage risk while maintaining wearer mobility, mimicking the feel of standard underwear.
Implementation Method 1
an elastic web material contractibly connectable to at least the back waist region under tension in a transverse axis direction
Implementation Method 2
one or more elastics joined thereto, said barriers arranged to provide tension over the length of the crotch region in a direction substantially parallel to the longitudinal axis
Data Source
AI summary
The present invention relates to an absorbent article (1), preferably an incontinence pant-like diaper, comprising a chassis (2), a front waist region (3), a back waist region (4) and a crotch region (5) extending between said front and back waist regions (3,4); wherein the front and back waist regions (3,4) are joinable to each other and wherein, when joined, a waist-opening is formed and a pair of leg-openings are formed by one or more crotch-leg-peripheral-edges (17,17′) and front and back waist-leg-peripheral-edges (18,18′,19,19′), and wherein first and second front waist-leg-peripheral-edges (18,18′) extend from a first position (20,20′) proximal to the crotch region (5) to a second position (21,21′) distal therefrom and proximal to a lateral edge (15,15′) of the front waist region (3), said first and second front waist-leg-peripheral-edges (18,18′) being oppositely disposed from the longitudinal axis. It is characterized in that distance D extending parallel to the longitudinal axis (Y-Y) between the front waist end (13) and a fifth position (22,22′) along the first and second front waist-leg-peripheral-edges (18,18′) which is closest to the front waist end (13), is smaller than length L of a front waist lateral edge (15,15′) extending parallel to the longitudinal axis (Y-Y).