Disposable Diaper With Removable Absorbent Core
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Solution Overview
Problem
Disposable diapers require disposal of the entire unit even when only lightly soiled, which is inefficient and wasteful.
Innovation Solution
A disposable diaper design featuring a removable core with a liquid-absorbent liner and a liquid barrier layer, which can be joined to the diaper body using adhesive materials, hook-and-loop fasteners, or frictional engagement, allowing the core to be separated and discarded separately from the rest of the diaper.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the entire disposable diaper is discarded when soiled, then hygiene is ensured, but resource waste increases
Solution Approach 1:
The diaper is divided into two separable components: a reusable diaper body and a disposable absorbent core. The core contains the soiled material and can be removed and discarded separately, while the diaper body remains clean and reusable. This segmentation resolves the contradiction by allowing selective disposal of only the contaminated portion.
Solution Approach 2:
The absorbent core containing the soiling is extracted as a separate removable component from the diaper body. This extraction enables the core to be discarded while retaining the reusable diaper body, thereby reducing resource waste while maintaining hygiene standards.
2Reliability
If the removable core is securely joined to the diaper body, then retention of soiling is improved, but device complexity increases
Solution Approach 1:
The absorbent core is designed as a disposable component with simple construction, using basic materials like absorbent pulp and a liquid barrier layer. This simplicity reduces the complexity of the joining mechanism while ensuring reliable containment of soiling during use, as the core is discarded after a single use regardless of soiling level.
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
Enables the reuse of the diaper when only the removable core is soiled, promoting resource conservation and reducing waste by allowing the diaper to be used multiple times.
Implementation Method 1
a diaper body, the diaper body having an inner lining comprising a liquid-absorbent material and the diaper body being shaped so that the diaper may extend about the waist and crotch of a wearer with the inner lining towards the wearer. A removable core is provided, shaped to engage a portion of the inner lining. The removable core has a liner comprising a liquid-absorbent material.
Implementation Method 2
The connector may comprise a plurality of spaced fasteners, with those fasteners, in one form of the invention, comprising adhesive materials. While any type of adhesive material can be employed, adhesive materials such as glue, paste, cement and tape can be used.
Implementation Method 3
In another form of the invention, the fasteners comprise hook-and-loop fasteners.
Implementation Method 4
In another form of the invention, the joining means comprises a frictional engagement of the removable core and the diaper body. In one form, that frictional engagement may comprise an indentation in the inner lining with the removable core being shaped to fit within the indentation.
Data Source
AI summary
A disposable diaper having a diaper body including an inner lining comprising a liquid-absorbent material and a removable core shaped to engage a portion of the inner lining. The removable core is temporarily secured to the diaper body and is removable therefrom.