Elastic Shaping Element in Absorbent Pad for Arcuate Fit
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Solution Overview
Problem
Existing incontinent and menstrual pads are often bulky, ineffective, and uncomfortable due to their flat structures, which can wrinkle and fail to fit the female form, leading to discomfort and inadequate absorbency.
Innovation Solution
A liquid-permeable top cover and liquid-impermeable bottom cover form an envelope with a shaping element enfolded within, allowing the pad to curl into an arcuate shape and providing a gathered structure for improved fit and absorbency, using elastic materials and adhesives to secure the shaping element and absorbent core.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If flat sheet structures are used to form pads, then manufacturing is simple, but the pads become bulky and uncomfortable during use
Solution Approach 1:
The patent applies curvature by forming the pad into an arcuate shape using elastic shaping elements that cause the pad to curl upward at the sides. This curved configuration eliminates the flat, bulky structure while maintaining comfort during movement, directly resolving the contradiction between simple manufacturing and comfort during use.
2Device complexity
If flat structures are used, then construction is simple, but they wrinkle and distort during use causing discomfort
Solution Approach 1:
The elastic shaping elements create a curved, arcuate configuration that prevents wrinkling and distortion during movement. The curvature allows the pad to conform to body contours and maintain its shape during walking, eliminating the wrinkling problem inherent in flat structures while keeping the overall design relatively simple.
Solution Approach 2:
The patent changes the physical state and configuration parameters of the pad by introducing elastic shaping elements that alter the pad's shape from flat to curved. This parameter change enables the pad to dynamically adapt to movement and body contours, preventing distortion while maintaining structural simplicity.
3Shape
If elasticized pads with imbedded threads are used, then shape retention is improved, but the pads become bulky and do not fit the female form
Solution Approach 1:
The patent applies local quality by placing elastic shaping elements specifically at the sides of the pad rather than uniformly throughout. This localized application provides shape retention and curling action where needed while keeping the central absorbent area simple and conforming to the female form, eliminating the bulkiness of uniformly elasticized pads.
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 comfortable, non-bulky, and effective absorbent pad that maintains its shape during use, reducing discomfort and enhancing absorbency by utilizing a shaping element to create a gathered structure that conforms to the body.
Implementation Method 1
the pad curls into an arcuate shape due to the presence of the shaping element when it is allowed to recoil
Implementation Method 2
the shaping element is first secured to the bottom cover, within the fold, by a shaping element adhesive, and second contained within a seam between the top cover and the bottom cover by a construction adhesive
Data Source
AI summary
An absorbent article is disclosed. The absorbent article is a pad that includes a top cover and a lower baffle. The absorbent article also includes a shaping element. The shaping element is folded within the top cover and the absorbent article. The fold is directed toward the baffle. The top cover therefore forms a terminal seam on the lower surface of the baffle. A process is also disclosed. The process includes folding the shaping element into the edges of the top cover and the baffle as the top cover and the baffle form a single fold.