Raisable Absorbent Article Topsheet for Excrement Storage
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Solution Overview
Problem
Current absorbent articles for personal hygiene, such as diapers, face challenges in effectively managing semi-solid and solid excrements, leading to discomfort and reduced absorbency due to the absence of absorbent material in void spaces within the absorbent core, which complicates manufacturing and affects overall performance.
Innovation Solution
The design incorporates a raisable region on the topsheet attached to elasticized barrier leg cuffs, creating an empty volume between the raisable region and the chassis, allowing for the storage of semi-solid and solid excrements away from the skin, with channel areas in the absorbent core enhancing flexibility and absorbency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a void space (pocket) is created in the absorbent core to store excrements, then comfort is improved by keeping excrements away from skin, but manufacturing complexity increases and overall absorbency may be reduced due to absence of absorbent material in the void space
Solution Approach 1:
The topsheet is segmented into a raisable region that can be lifted by the barrier leg cuffs, creating a separate containment space above the absorbent core. This segmentation allows the absorbent core to remain simple and uniformly manufactured while the raisable topsheet region provides the excrement storage function, thus resolving the contradiction between comfort and manufacturing complexity.
Solution Approach 2:
The solution moves the excrement storage function from within the absorbent core (vertical dimension) to above the absorbent core by raising the topsheet region (creating a new spatial dimension). The barrier leg cuffs lift the topsheet to form a three-dimensional containment space that does not interfere with the absorbent core structure, maintaining simple manufacturing while achieving the comfort benefit.
2Quantity of substance
If absorbent material is placed in void spaces within the absorbent core, then overall absorbency is improved, but manufacturing precision requirements increase due to the need to create and fill complex internal structures
Solution Approach 1:
The invention extracts the excrement storage function from the absorbent core itself and places it in a separate space formed by the raisable topsheet region. This allows the absorbent core to maintain its simple, uniform structure with standard manufacturing precision, while the extracted storage space is created by the mechanical action of the barrier leg cuffs lifting the topsheet, eliminating the need for complex internal void space formation.
3Stability of the object's composition
If the topsheet is fully attached to the chassis, then structural stability is improved, but comfort is reduced due to lack of empty volume for excrement storage
Solution Approach 1:
The topsheet attachment is applied locally rather than uniformly: the raisable region is attached away from the proximal edge of the barrier leg cuffs, allowing it to be lifted and form an empty volume, while other regions of the topsheet remain attached to maintain structural stability. This local differentiation of attachment zones resolves the contradiction between stability and comfort.
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 improves comfort by keeping excrements away from the skin, enhances absorbency by providing a temporary storage for urine, and simplifies manufacturing by eliminating the need for absorbent material in void spaces within the absorbent core.
Implementation Method 1
a pair of elasticized barrier leg cuffs each defined by a proximal edge attached to the rest of the article and a distal edge that protrudes upwards from the chassis of the article when worn by the wearer
Implementation Method 2
an absorbent core between the topsheet and the backsheet for retaining the exudates
Data Source
AI summary
An absorbent article for personal hygiene having a front edge and a back edge and comprising a liquid impermeable backsheet, a liquid permeable topsheet, an absorbent core and a pair of barrier leg cuffs disposed symmetrically relative to the longitudinal axis. Each barrier leg cuff is defined by a proximal edge attached to the rest of the article and an elasticized terminal edge that can protrude upwards. The topsheet comprises a raisable region that is attached to the barrier leg cuffs so that when the barrier leg cuffs are raised, the raisable region is lifted up by the barrier leg cuffs and an empty volume is formed between the raisable region and the chassis of the article underneath.