Absorbent Article Fastening System with Secondary Elastomeric Components
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Solution Overview
Problem
Conventional absorbent articles face issues with leakage and secure attachment due to loose fastening systems, especially during wearer movement, and suffer from packaging and manufacturing drawbacks such as delamination and discomfort caused by stiff fastening components.
Innovation Solution
An improved absorbent article design featuring a secondary fastening system with elastomeric components positioned to enhance pliability and secure attachment, reducing the likelihood of leakage and sagging, while being packaged without engaging other diapers or objects, thus minimizing manufacturing and user discomfort.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a primary fastening system is used to secure the absorbent article, then attachment is achieved, but the fastening tabs may loosen or come unfastened due to shear stress from wearer movement
Solution Approach 1:
The fastening system is divided into multiple independent fastening components (primary fastening tabs and secondary fastening elements) distributed across the article. This segmentation allows the load to be distributed across multiple attachment points, preventing any single tab from bearing excessive shear stress that would cause loosening or unfastening during wearer movement.
Solution Approach 2:
The absorbent article is provided in a pre-folded configuration with fastening components positioned and oriented before use. The secondary fastening elements are pre-positioned to engage with the primary fastening tabs, creating a ready-to-secure system that maintains attachment integrity from the moment of application, preventing subsequent loosening due to movement.
2Reliability
If multiple fastening systems are used to reduce leakage and sagging, then attachment security is improved, but packaging and manufacturing become more complex
Solution Approach 1:
Multiple fastening functions are combined into a single integrated fastening system where primary fastening tabs and secondary fastening elements work together as one cohesive unit. This merging provides enhanced attachment security through multiple engagement points while maintaining manufacturing and packaging simplicity by treating the entire fastening system as a single integrated component rather than separate systems.
Solution Approach 2:
The fastening components are designed to perform multiple functions: the primary fastening tabs provide initial attachment, while the secondary fastening elements provide additional security and positioning. This multi-functionality allows a single fastening system structure to deliver both primary attachment and secondary reinforcement, reducing overall system complexity while improving attachment security.
3Ease of manufacture
If fastening components are positioned on the outside of folded diapers, then they engage other diapers during packaging, but positioning them inside causes delamination and tearing
Solution Approach 1:
The fastening components are positioned at specific locations on the absorbent article where they will be contained within the folded configuration during packaging. This localized positioning ensures that the fastening elements do not protrude outward to engage other diapers, while still being accessible for fastening after application. The positioning is carefully selected to avoid areas that would experience delamination or tearing during folding and packaging operations.
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 improved fastening system provides increased protection against leakage and secure attachment, reduces packaging issues, and enhances user comfort by maintaining stability and flexibility during wearer movement.
Implementation Method 1
an elastomeric portion (150) constructed of an elastomeric material
Data Source
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AI summary
A method of manufacturing an absorbent article including a fastening system having a primary fastening system and a secondary fastening system is disclosed. In one embodiment, the method can include providing an absorbent assembly, providing a web of primary second fastening component material, and providing a carrier web including a secondary first fastening component material. The method can further include coupling the carrier web to the web of primary second fastening component material to form a composite web, cutting the composite web to form a discrete composite web component, and coupling the discrete composite web component to the outer cover of the absorbent assembly, with the discrete composite web component forming the primary second fastening component of the primary fastening system and the at least one secondary first fastening component of the secondary fastening system.