Folded Absorbent Core With Spanning Acquisition Layer
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Solution Overview
Problem
Current absorbent articles face challenges in achieving optimal fit, discretion, and leakage protection, particularly in retaining liquid bodily exudates effectively and quickly, with existing absorbent cores not adequately addressing the need for thinner, faster-acting products.
Innovation Solution
The development of layered absorbent bodies with a lofty nonwoven reinforcing material and superabsorbent material disposed in patterned lanes, combined with an acquisition material that spans across a channel region formed by folding the absorbent body, enhancing fluid intake and distribution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If traditional absorbent cores are used, then basic absorbency is achieved, but first fluid intake time is slow and product thickness is excessive
Solution Approach 1:
The absorbent core is divided into multiple functional layers with distinct roles: a fluid-permeable acquisition layer for rapid fluid intake, a distribution layer for even fluid distribution, and a containment layer for leakage prevention. This segmentation allows each layer to be optimized for its specific function, enabling faster overall fluid intake while reducing the thickness required compared to traditional homogeneous cores
Solution Approach 2:
The patent introduces a three-dimensional folded structure with channel regions that add vertical dimensionality to fluid transport. The folds create multiple pathways and increase the effective surface area for fluid absorption without proportionally increasing the horizontal footprint, thereby improving fluid intake speed while maintaining a compact overall thickness
2Ease of manufacture
If absorbent core structure is simplified, then manufacturing is easier, but leakage protection and rewet performance deteriorate
Solution Approach 1:
The absorbent core employs a nested multi-layer configuration where the acquisition layer, distribution layer, and containment layer are stacked and integrated within each other. This nested structure provides comprehensive leakage protection through multiple barriers while maintaining a compact form factor that is relatively simple to manufacture as a single integrated component
Solution Approach 2:
The acquisition layer is positioned at the fluid entry point to preemptively capture and channel fluid before it can reach the main absorbent body. This preliminary action prevents direct saturation of the deeper layers, reducing rewet risk and enhancing leakage protection while maintaining a straightforward layered manufacturing process
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
This configuration results in improved first fluid intake time and rewet performance, providing superior absorbency and leakage protection while maintaining structural integrity.
Implementation Method 1
These absorbent bodies are generally responsible for capturing and retaining liquid bodily exudates
Implementation Method 2
absorbent material comprising superabsorbent material disposed between the top facing material layer and the bottom facing material layer
Implementation Method 3
an acquisition material disposed between the absorbent body and the bodyside liner, and wherein a first side portion of the absorbent body and a second side portion of the absorbent body are folded onto a central portion of the absorbent body forming a folded absorbent body with a first folded portion and a second folded portion with a channel region disposed between the first folded portion and the second folded portion, and wherein the acquisition material spans across the channel region
Data Source
AI summary
Absorbent bodies and methods of forming absorbent bodies are disclosed. In one embodiment, an absorbent garment comprises a bodyside liner; an outer cover; an absorbent comprising: a top facing material layer, a bottom facing material layer, a lofty nonwoven reinforcing material disposed between the top facing material layer and the bottom facing material layer, absorbent material comprising superabsorbent material disposed between the top facing material layer and the bottom facing material layer and within the reinforcing material; and an acquisition material disposed between the absorbent body and the bodyside liner, wherein a first side of the absorbent body and a second side of the absorbent body are folded onto a central portion forming a folded absorbent body with first and second folded portions with a channel region disposed between the first and second folded portions, and wherein the acquisition material spans across the channel region.