Absorbent Core Conformance Zone With Clusters for Better Fit
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Solution Overview
Problem
There is a need for disposable absorbent articles that provide improved fit and body conformance while maintaining absorbency and leakage security, while also reducing material consumption and environmental impact.
Innovation Solution
The absorbent article features an absorbent core sandwiched between a liquid-permeable topsheet and a liquid-impermeable backsheet, with a coherent area and a conformance zone comprising absorbent clusters, where the coherent area provides primary absorption and the conformance zone enhances fit and body conformance through absorbent clusters arranged in a pattern that allows for efficient liquid distribution and reduced material usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the absorbent core uses a substantial amount of material to ensure absorbency and leakage security, then the absorbency and leakage security are improved, but the material consumption and environmental impact increase
Solution Approach 1:
The absorbent core is divided into discrete absorbent clusters distributed throughout the core structure. Each cluster is a separate functional unit that can be independently positioned to optimize absorbency distribution. This segmentation allows the patent to achieve reliable absorbency with less total material by concentrating absorbent capacity where it is most needed rather than using uniform material distribution throughout the entire core.
Solution Approach 2:
The patent implements varying material density and composition at different locations within the absorbent core. The front portion contains absorbent clusters with different characteristics than the back portion, optimizing local absorbency requirements. This local quality approach ensures that each region of the core has the appropriate absorbent properties for its specific function, reducing overall material consumption while maintaining reliable absorbency and leakage security throughout the article.
2Reliability
If the absorbent core uses more material to maintain volume and functionality, then the absorbency and comfort are improved, but the space occupation during transporting and disposal increases
Solution Approach 1:
The absorbent core is divided into discrete absorbent clusters distributed throughout the core structure. Each cluster is a separate functional unit that can be independently positioned to optimize absorbency distribution. This segmentation allows the patent to achieve reliable absorbency with less total material by concentrating absorbent capacity where it is most needed rather than using uniform material distribution throughout the entire core.
Solution Approach 2:
The patent implements varying material density and composition at different locations within the absorbent core. The front portion contains absorbent clusters with different characteristics than the back portion, optimizing local absorbency requirements. This local quality approach ensures that each region of the core has the appropriate absorbent properties for its specific function, reducing overall material consumption while maintaining reliable absorbency and leakage security throughout the article.
3Ease of manufacture
If the absorbent core uses a uniform distribution of absorbent material, then the manufacturing process is simplified, but the fit and body conformance are reduced
Solution Approach 1:
The absorbent core is divided into discrete absorbent clusters distributed throughout the core structure. Each cluster is a separate functional unit that can be independently positioned to optimize absorbency distribution. This segmentation allows the patent to achieve reliable absorbency with less total material by concentrating absorbent capacity where it is most needed rather than using uniform material distribution throughout the entire core.
Solution Approach 2:
The patent implements varying material density and composition at different locations within the absorbent core. The front portion contains absorbent clusters with different characteristics than the back portion, optimizing local absorbency requirements. This local quality approach ensures that each region of the core has the appropriate absorbent properties for its specific function, reducing overall material consumption while maintaining reliable absorbency and leakage security throughout the article.
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 achieves improved fit and body conformance, efficient liquid distribution, and reduced material usage without compromising absorbency, thereby addressing the challenges of material consumption and environmental impact.
Implementation Method 1
The absorbent core comprises an absorbent component which is enclosed by a core cover... the coherent area having an extension in said longitudinal direction in at least the front portion and the crotch portion of the article, and having an extension in the transverse direction over a full width of the absorbent component inside the core cover
Data Source
Figure 1
Figure 2A~2B
Figure 2C~2F
AI summary
An absorbent article (1) comprising an absorbent core (5) sandwiched between a liquid- permeable topsheet (3) and a liquid-impermeable backsheet (4). The absorbent article (1) comprises a front portion (6), a back portion (7) and a crotch portion (8) located between the front portion (6) and the back portion (7), wherein the absorbent core (5) comprises a coherent area (51), the coherent area (51) being disposed in at least the front portion (6) and the crotch portion (8) of the absorbent article (1). The back portion (7) of the absorbent article (1) comprises a conformance zone (55), the conformance zone (55) comprising a plurality of absorbent clusters (56).