Sanitary Pad Offset Adhesive Tabs for Independent Undergarment Attachment

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Solution Overview

Problem

Existing sanitary pad systems face challenges in ease of use and effectiveness, particularly in maintaining long-term absorbent protection without interfering with the underlying pad when the top pad reaches the end of its useful life.

Innovation Solution

A sanitary pad system comprising two pads with offset fastening tabs that allow each pad to be directly connected to an undergarment independently, enabling easy removal and replacement of the top pad without disturbing the underlying pad, utilizing adhesive tabs with removable release paper for secure attachment.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Duration of action of moving object

If multiple pads are stacked to provide long-term absorbent protection, then the duration of protection is extended, but the complexity of attachment and removal increases

Engineering Contradiction:

Improveduration of protectionVSAvoidcomplexity of attachment

Core Design Contradiction:

Duration of action of moving objectVSDevice complexity

Solution Approach 1:

The fastening system is segmented into multiple independent sets of tabs - one set on the first pad and another offset set on the second pad. This segmentation allows each pad to be independently attached to the undergarment, simplifying the overall attachment process while enabling multi-pad stacking for extended protection duration.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The fastening tabs are positioned asymmetrically with an offset relationship between the first set on the first pad and the second set on the second pad. This asymmetric positioning prevents tab overlap and enables independent attachment of each pad to the undergarment, resolving the contradiction between extended protection duration and attachment complexity.

Inventive Principle:

Principle #4Asymmetry

2Reliability

If the top pad is removed when it reaches the end of its useful life, then hygiene is maintained, but the underlying pad may be disturbed or detached

Engineering Contradiction:

Improvehygiene maintenanceVSAvoidease of pad removal

Core Design Contradiction:

ReliabilityVSEase of operation

Solution Approach 1:

The fastening system is divided into separate independent sets - the first set on the first pad and the second offset set on the second pad. This segmentation ensures that removing the second pad does not affect the attachment of the first pad to the undergarment, allowing easy removal while maintaining the underlying pad's secure attachment for continued hygiene protection.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The offset positioning of the second set of fastening tabs relative to the first set creates independent attachment zones. When the second pad is removed, the asymmetric tab positions prevent interference with the first pad's tabs, enabling easy removal operation while maintaining the reliability of the underlying pad's attachment.

Inventive Principle:

Principle #4Asymmetry

3Ease of operation

If fastening tabs are positioned to allow independent attachment of stacked pads, then ease of operation is improved, but the structural complexity of the pad system increases

Engineering Contradiction:

Improveease of independent attachmentVSAvoidstructural complexity

Core Design Contradiction:

Ease of operationVSDevice complexity

Solution Approach 1:

The second set of fastening tabs on the second pad is positioned asymmetrically offset from the first set on the first pad. This asymmetric offset configuration enables independent attachment of each pad to the undergarment, improving ease of operation. The structural complexity increase is minimal as it only requires modified tab positioning rather than additional components or mechanisms.

Inventive Principle:

Principle #4Asymmetry

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 provides continuous absorbent protection by allowing the underlying pad to remain securely attached while the top pad is easily removed and replaced, enhancing user convenience and maintaining hygiene.

Implementation Method 1

the first fastening tab, the second fastening tab, the third fastening tab and the fourth fastening tab may include an adhesive on one face thereof to adhere to the undergarment

Methodology Applied

Scientific EffectAdhesive: Adhesive

Implementation Method 2

The first pad and the second pad may both include an absorbent material layer, adapted to absorb body exudates

Methodology Applied

Scientific EffectAbsorption: Absorption (physical)

Data Source

PatentUS11622895B2Sanitary pad system with two pads having offset adhesive tabs for attachment to an undergarment

Publication Date: 2023.04.11 ANOUSIS ANGELICA M

AI summary

A sanitary pad system includes a first pad and a second pad. The first pad has a first set of fastening tabs and the second pad has a second set of fastening tabs. The two sets of fastening tabs are offset so that, when the two pads are stacked in overlapping relationship on an undergarment, both pads are directly attached to the undergarment with the associated fastening tabs.