Detachable Absorbent Core for Reusable Outer Shell

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Solution Overview

Problem

Existing disposable absorbent articles, such as diapers and training pants, face challenges in cost-effectiveness and manufacturability due to the need for separate processing of elastic composites, which increases production costs and complexity.

Innovation Solution

A disposable absorbent article design featuring a detachable absorbent core insert and a reusable outer shell, where the core insert is easily attachable and detachable from the outer shell, allowing for seamless integration of elastic composite formation into the manufacturing process and reducing the need for separate sub-processing of elastic components.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If elastic members are incorporated into absorbent garments to provide fit and comfort, then the garment's support and sealing capabilities are enhanced, but the manufacturing process becomes more complex and costly due to multi-component construction

Engineering Contradiction:

Improvesupport and sealing capabilitiesVSAvoidmulti-component construction

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent combines the elastic members with the absorbent core into a single integrated composite structure. The elastic members are positioned between the topsheet and absorbent core, creating a unified component that provides both absorption and elastic support functions, thereby reducing manufacturing complexity while maintaining fit and sealing capabilities

Inventive Principle:

Principle #5Merging (Combining)

2Adaptability or versatility

If elastic composites are manufactured independently or in separate sub-processes, then the manufacturing flexibility is maintained, but the production cost and process complexity increase

Engineering Contradiction:

Improvemanufacturing flexibilityVSAvoidproduction cost and process complexity

Core Design Contradiction:

Adaptability or versatilityVSEase of manufacture

Solution Approach 1:

The invention integrates the formation of elastic composites directly into the absorbent article manufacturing process. The elastic members are applied to the absorbent core during the same production line operation, eliminating the need for separate sub-processes and reducing overall manufacturing complexity while maintaining production flexibility

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The elastic members are positioned and secured to the absorbent core before the final assembly of the absorbent article. This preliminary integration ensures that the elastic composite structure is already formed when other components are added, streamlining the manufacturing process and reducing the need for subsequent assembly operations

Inventive Principle:

Principle #10Preliminary action

Data Source

PatentUS11896468B2Disposable absorbent core and disposable absorbent assembly including same, and method of making same

Publication Date: 2024.02.13 DSG TECHNOLOGY HOLDINGS LTD

AI summary

Disclosed is a disposable absorbent article having an outer shell and a detachable disposable absorbent core insert supported on an inside surface of the outer shell. The core insert is attached to the inside surface and is detachable therefrom. The inside surface further includes a retaining structure for receiving the absorbent core insert, the core insert being attachable with the retaining structure and detachable from the retaining structure.