Reusable Moisture-Retaining Insert Bonding for Leak-Proof Absorbency
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Solution Overview
Problem
Disposable absorbent articles are not environmentally friendly and reusable alternatives are complex to manufacture, costly, and perform poorly compared to disposables, leading to leakage issues.
Innovation Solution
A reusable moisture retaining article is constructed with a moisture-absorbing insert bonded to an outer cover using adhesive layers and compressive force, optionally with protective and inner layers, ensuring effective absorption and retention of body moisture.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If reusable absorbent articles are manufactured with multiple layers and complex bonding processes, then absorption performance and leak-proof capability are improved, but manufacturing complexity and cost increase significantly
Solution Approach 1:
The reusable article is divided into distinct functional layers: an absorbent insert layer for moisture absorption, an outer cover layer for protection, and adhesive layers for bonding. This segmentation allows each layer to be optimized independently for its specific function while simplifying the overall manufacturing process through modular assembly.
Solution Approach 2:
Adhesive layers are introduced as intermediary elements between the absorbent insert and outer cover, enabling reliable bonding without complex mechanical fastening systems. The adhesive acts as a mediator that provides strong attachment while maintaining flexibility and comfort, resolving the contradiction between bond strength and manufacturing simplicity.
2Ease of manufacture
If reusable absorbent articles use simple manufacturing processes, then manufacturing cost and complexity are reduced, but absorption performance and retention capability deteriorate
Solution Approach 1:
By segmenting the article into separate functional layers (absorbent insert, outer cover, adhesive layers), the manufacturing process becomes simpler as each layer can be produced and prepared independently before assembly, while still achieving high absorption performance through optimized layer-specific designs.
Solution Approach 2:
The article uses composite construction with different materials optimized for specific functions: highly absorbent materials in the insert layer, water-resistant materials in the outer cover, and adhesive materials for bonding. This composite approach enables simple manufacturing through layer assembly while achieving superior overall performance.
3Ease of operation
If disposable absorbent articles are used, then manufacturing and usage simplicity is maintained, but environmental harm and disposal problems arise
Solution Approach 1:
The invention enables recovery and reuse of the absorbent article after washing, eliminating the need for continuous disposal. The reusable design maintains ease of operation during use while dramatically reducing environmental harm by keeping the product in circulation through multiple use cycles instead of discarding it after single use.
Solution Approach 2:
The reusable article serves itself through washing and drying cycles, regenerating its absorption capability without requiring replacement. This self-service approach maintains usage simplicity for the consumer while eliminating the environmental harm associated with continuous production and disposal of disposable articles.
4Ease of manufacture
If reusable absorbent articles are designed for cost-effectiveness, then manufacturing cost is reduced, but performance and leak-proof capability may compromise
Solution Approach 1:
Segmenting the article into essential functional layers allows cost-effective manufacturing by focusing resources on critical performance areas (absorbent insert and bonding) while using simpler, less expensive materials for non-critical components (outer cover), thereby maintaining performance at lower cost.
Solution Approach 2:
Using composite materials with different cost-performance characteristics in different layers enables cost-effective manufacturing overall while maintaining high performance where needed. The adhesive layers provide reliable bonding at reasonable cost, the absorbent insert delivers high performance, and the outer cover provides basic protection, achieving balanced cost-performance optimization.
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 a cost-effective, leak-proof, and environmentally friendly alternative to disposable absorbent articles, maintaining performance comparable to disposables.
Implementation Method 1
positioning an adhesive layer or at least a portion of an/the adhesive layer between the insert and the outer cover between the insert and the outer cover interconnecting the insert and the outer cover
Implementation Method 2
applying a compressive force thereby bonding the insert and the outer cover together by the adhesive layer
Implementation Method 3
the inner layer being configured to be located adjacent the user's body and facing towards the user's body for being in bodily contact with the user to directly absorb and retain the body moisture from the user
Data Source
AI summary
Disclosed is a reusable moisture retaining article 100 of or for use with an undergarment to be positioned adjacent a body of a user and to absorb and retain moisture from the user. The article comprises a reusable moisture absorbing and retaining insert 110 at least a portion of which is exposed or configured to be exposed to define an inner layer of the article that is configured to be in direct contact with the user's body to absorb moisture. An outer cover 120 defines an outer layer of the article. An adhesive layer 130 interconnects the insert 110 and the outer cover 120. The insert 110 and the outer cover 120 are bonded together with the adhesive layer 110 by applying a compressive force.