Seamless Stretch Laminate Wing for Adult Incontinent Device

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Solution Overview

Problem

Current adult incontinent devices have complex and costly wing components made from multiple subcomponents, leading to increased manufacturing complexity, waste, skin irritation, discomfort, and insecurity due to seams and overlapping zones.

Innovation Solution

A seamless wing design using a stretch laminate with a nonwoven and elastic layer, where the elastic layer width ranges from 25-90% of the non-stretch zone width, eliminating overlaps and seams, and integrated with a fastener component for secure attachment to the chassis.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If multi-component wings are used to provide stretch and non-stretch zones, then the device can accommodate different body shapes, but the manufacturing complexity increases

Engineering Contradiction:

Improveaccommodation of different body shapesVSAvoidmanufacturing complexity

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent merges multiple subcomponents (first non-stretch zone, stretch zone, second non-stretch zone) into a single integral wing component. This eliminates the need to join separate pieces together, reducing manufacturing complexity while maintaining the functional zones for accommodating different body shapes.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The wing is segmented into functional zones (stretch and non-stretch areas) within a single component structure. This allows different portions of the wing to serve different purposes (stretching at the hip, non-stretch at the attachment points) without requiring separate components, thus maintaining adaptability while simplifying manufacturing.

Inventive Principle:

Principle #1Segmentation

2Adaptability or versatility

If multiple subcomponents are joined together to form the wing, then stretch and non-stretch functionality is achieved, but manufacturing cost increases

Engineering Contradiction:

Improvestretch and non-stretch functionalityVSAvoidmanufacturing cost

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent combines multiple subcomponents into one integral wing, eliminating the need for separate manufacturing and assembly processes for each component. This reduces material waste, labor costs, and overall manufacturing expense while preserving the stretch and non-stretch functionality through strategically placed elastic and non-elastic zones within the single component.

Inventive Principle:

Principle #5Merging (Combining)

3Ease of manufacture

If overlapping zones are used to join subcomponents, then the wing can be assembled, but skin irritation increases due to friction

Engineering Contradiction:

Improvewing assemblyVSAvoidskin irritation

Core Design Contradiction:

Ease of manufactureVSObject-affected harmful factors

Solution Approach 1:

The patent eliminates overlapping zones by forming the wing as a single integral component. This removes the seams and friction points that cause skin irritation, while the wing can still be securely attached to the chassis through adhesives or other joining methods applied to the continuous surface of the integral wing.

Inventive Principle:

Principle #5Merging (Combining)

4Ease of manufacture

If seams and overlaps are present in the wing, then subcomponents can be joined, but device attractiveness decreases

Engineering Contradiction:

Improvesubcomponent joiningVSAvoiddevice attractiveness

Core Design Contradiction:

Ease of manufactureVSShape

Solution Approach 1:

The patent merges all subcomponents into one seamless integral wing structure. This eliminates visible seams and overlaps, creating a smooth, clean appearance that is more aesthetically pleasing. The wing maintains its functional integrity while presenting an attractive, unified appearance on the incontinent device.

Inventive Principle:

Principle #5Merging (Combining)

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 reduces manufacturing costs, enhances comfort, minimizes skin irritation, and improves security by eliminating seams and overlapping zones, while maintaining the necessary stretch and non-stretch functionality.

Implementation Method 1

a stretch laminate with at least one nonwoven layer and at least one elastic layer... the stretch laminate has at least one stretch zone with the elastic layer and at least one non-stretch zone without the elastic layer

Methodology Applied

Scientific EffectElasticity: Elasticity

Data Source

PatentEP3675786B1Adult incontinent device

Publication Date: 2022.11.23 APLIX SA

Figure 1A~1B
Figure 2A~2B
Figure 3A~4

AI summary

A wing for an adult incontinent device is disclosed. The adult incontinent device has a chassis with a lateral attachment surface. The wing includes a stretch laminate with at least one nonwoven layer and at least one elastic layer. The nonwoven layer and the elastic layer are bound together in face-to-face contact. The stretch laminate has at least one stretch zone and at least one non-stretch zone. The stretch laminate has no overlap portions between the stretch zone and the non-stretch zone. One end of the wing is affixed to the lateral attachment surface of the chassis.