Multi-layer Absorbent Article with Selective Attachment Media

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Solution Overview

Problem

Conventional absorbent articles for female personal hygiene, such as sanitary towels and daily protectors, are inconvenient to change and do not fit various types of underwear, limiting user flexibility and comfort.

Innovation Solution

An absorbent article comprising multiple substrates with a top permeable layer and a bottom impermeable layer, where the substrates are held together around the periphery and can be folded with an absorbent core of varying shapes, featuring attachment and support media for flexible positioning and wing options, allowing for two possible positions of use and adaptability to different underwear types.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If absorbent articles are designed to fit a specific size of underwear reinforcement, then the article provides good fit and comfort for that specific type, but it cannot be used with different types of underwear such as thong-type or normal underwear

Engineering Contradiction:

Improvecompatibility with different underwear typesVSAvoidstructural complexity to achieve versatility

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The absorbent article is designed with a universal structure that can be adapted to different types of underwear (normal, thong, etc.). The article includes multiple positions for attachment media and support media that can be activated selectively, allowing the same article to function with various underwear styles without requiring multiple specialized designs.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

The absorbent article incorporates detachable and reconfigurable components, including attachment media and support media that can be positioned at different locations. This dynamic structure allows users to reconfigure the article's configuration to match different underwear types, transforming a static design into an adaptable solution.

Inventive Principle:

Principle #15Dynamics

2Ease of operation

If conventional absorbent articles are designed as single-unit structures, then they are simple in design, but they require complete replacement when changing, causing inconvenience and waste

Engineering Contradiction:

Improveconvenience of changing absorbent articlesVSAvoiddiscarding of functional absorbent material

Core Design Contradiction:

Ease of operationVSLoss of substance

Solution Approach 1:

The absorbent article is divided into separable components, including a base layer with absorbent core and optional removable top layers or wings. This segmentation allows users to detach and replace only the contaminated portions rather than the entire article, reducing waste and improving convenience during changes.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The design enables selective discarding of only the soiled portions of the absorbent article while retaining and reusing the clean, functional absorbent material. This partial replacement approach recovers usable absorbent capacity and reduces the frequency of complete replacements.

Inventive Principle:

Principle #34Discarding and recovering

3Adaptability or versatility

If absorbent articles have fixed positioning during use, then they provide stable absorption, but they lack flexibility for different user positions and activities

Engineering Contradiction:

Improveflexibility for different positions of useVSAvoidstability of absorption function

Core Design Contradiction:

Adaptability or versatilityVSReliability

Solution Approach 1:

The absorbent article incorporates multiple attachment media positioned at different locations and support media that can be selectively engaged. This dynamic configuration system allows the article to be secured in various positions and orientations, adapting to different user activities while maintaining reliable absorption through proper securing.

Inventive Principle:

Principle #15Dynamics

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 design provides users with flexible positioning options and compatibility with various underwear styles, enhancing convenience and comfort by preventing fluid leakage and allowing easy detachment and reattachment of layers.

Implementation Method 1

a top permeable layer and a bottom impermeable layer

Methodology Applied

Scientific EffectPermeation: Permeation

Implementation Method 2

a bottom impermeable layer

Methodology Applied

Scientific EffectImpermeability: Physical Containment

Implementation Method 3

an absorbent core having different geometrical shapes

Methodology Applied

Scientific EffectAbsorption: Absorption (physical)

Data Source

PatentUS11974906B2Absorbent article with multiple layers

Publication Date: 2024.05.07 PRODOS FAMILIA SA

AI summary

The present invention corresponds to an absorbent article comprising substrates having a top layer and a bottom layer, wherein the substrates are located one on top pf the other. The bottom substrate having attachment media located on the bottom layer, and the top substrate having support media located on the top end and bottom end of the top substrate. The bottom and op substrates are attached throughout the periphery thereof, and the top layer is permeable.