Offset Absorbent Cores for Leakage and Bunching
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Solution Overview
Problem
Disposable absorbent articles, particularly for users with a high body mass index (BMI), tend to experience excessive bunching and increased leakage due to inadequate structural support and absorbency, compromising discretion and protection.
Innovation Solution
The design incorporates a unique absorbent system with offset absorbent cores and adjustable fold lines, providing enhanced structural resiliency, improved wicking, and distribution, along with optional barrier cuffs for increased protection against leakage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If disposable absorbent articles use conventional absorbent structures, then they provide basic absorbency, but users with high BMI experience excessive bunching and increased leakage
Solution Approach 1:
The absorbent core is divided into multiple zones with different absorbent basis weights distributed non-uniformly throughout the core. This segmentation allows different regions to provide different levels of absorbency and structural support, preventing bunching in high-BMI users while maintaining leakage protection where needed.
Solution Approach 2:
Different portions of the absorbent core are assigned different basis weights based on local requirements. Areas prone to bunching receive lighter absorbent material to reduce bulk, while areas requiring high absorbency retain heavier material, creating localized quality variations that solve both problems simultaneously.
2Reliability
If disposable absorbent articles increase absorbent material to protect high BMI users, then leakage protection improves, but product bulk and footprint increase
Solution Approach 1:
The absorbent core is segmented into zones with varying basis weights, concentrating absorbent material only where needed for leakage protection rather than uniformly throughout. This reduces overall product bulk while maintaining necessary protection for high-BMI users.
Solution Approach 2:
The basis weight of absorbent material is varied as a parameter across different regions of the core. By changing this parameter locally rather than maintaining a constant high value throughout, the product achieves adequate protection with reduced overall volume.
3Reliability
If disposable absorbent articles use uniform absorbent distribution, then manufacturing is simple, but fit and absorbency are inadequate for high BMI users
Solution Approach 1:
The absorbent core is segmented into multiple zones with different basis weights. This segmentation improves absorbency and fit for high-BMI users by matching material distribution to actual usage patterns, while the segmentation can be achieved through conventional manufacturing techniques.
Solution Approach 2:
Local variations in absorbent basis weight are implemented to match the specific absorbency needs of different body regions. This creates optimized local quality without requiring fundamentally complex manufacturing processes.
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 offers improved fit, reduced leakage risk, and enhanced absorbency, ensuring comfort and discretion for users with higher BMIs while maintaining a discreet and effective absorbent profile.
Implementation Method 1
improved wicking, and distribution
Implementation Method 2
absorbent system comprising a first absorbent core and a second absorbent core
Implementation Method 3
superabsorbent polymers which are able to intake increased amounts of liquid and consequently form a swollen hydrogel material. The resulting hydrogel serves to retain fluid such as discharged body liquids within the structure
Data Source
AI summary
Disposable absorbent articles are disclosed herein having a first and second fold line. The disposable absorbent articles have a topsheet, a backsheet, and an absorbent system disposed therebetween. The absorbent system has a first absorbent core and a second absorbent core which may be configured in an offset manner. And, the absorbent system and/or the first and second fold lines may be configured with respect to the absorbent article to effect a caliper change in the folded article.