Seamless Reusable Garment with Removable Absorbent Pad

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Solution Overview

Problem

Existing absorbent garments for incontinence and menstrual purposes are either disposable or have visible seams, which can be uncomfortable and unsightly, and lack effective liquid retention mechanisms.

Innovation Solution

A washable, reusable garment with a seamless design featuring a crotch portion containing a pocket for a removable absorbent pad and an integrated absorbent composite with a barrier film to prevent liquid leakage, providing a snug fit through elastic or stretchable materials.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If disposable absorbent garments are used, then liquid retention and hygiene are improved, but environmental waste and cost increase

Engineering Contradiction:
Improveliquid retentionVSAvoidwaste
Core Design Contradiction:
ReliabilityVSLoss of substance

Solution Approach 1:

The patent implements a reusable absorbent garment that can be washed and reused multiple times, replacing the disposable model. The garment includes removable absorbent pads that can be taken out for washing while the garment body remains, allowing selective recovery and reuse of components. This eliminates continuous waste generation while maintaining liquid retention functionality through repeated use cycles.

Inventive Principle:
Principle #34Discarding and recovering

Solution Approach 2:

The patent changes the durability parameter of the absorbent garment from single-use to multi-use by incorporating washable materials and construction methods. The garment is designed to withstand multiple washing cycles while maintaining its absorbent and barrier properties, fundamentally altering the product lifecycle from disposable to reusable.

Inventive Principle:
Principle #35Parameter changes

2Ease of manufacture

If seams are added to the garment for construction, then manufacturing ease is improved, but comfort and aesthetics deteriorate due to visible and uncomfortable seams

Engineering Contradiction:
ImproveconstructionVSAvoidcomfort
Core Design Contradiction:
Ease of manufactureVSEase of operation

Solution Approach 1:

The patent removes seams from the garment body by using seamless knitting or weaving techniques for the main garment construction. The absorbent pads are made as separate removable components that attach to the seamless garment body through minimal attachment points, eliminating the need for seams in the visible and contact areas of the garment.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The garment is divided into a seamless garment body and separate absorbent pad components. This segmentation allows the garment body to be constructed without seams for comfort, while the absorbent pads can be manufactured separately and attached through simple mechanisms that do not require extensive seam work.

Inventive Principle:
Principle #1Segmentation

3Reliability

If a barrier film is added to prevent liquid leakage, then liquid retention is improved, but breathability may deteriorate

Engineering Contradiction:
Improveliquid retentionVSAvoidbreathability
Core Design Contradiction:
ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent employs a microporous barrier film that allows water vapor and gases to pass through while blocking liquid penetration. The porous structure of the film provides breathability for comfort while maintaining the liquid barrier function, resolving the contradiction between liquid retention and breathability.

Inventive Principle:
Principle #31Porous materials

Solution Approach 2:

The garment incorporates a composite structure combining hydrophilic absorbent layers with a hydrophobic microporous barrier film. This composite material system allows the different layers to perform their specialized functions - the absorbent layer manages moisture while the barrier film prevents liquid leakage and maintains breathability through its porous structure.

Inventive Principle:
Principle #40Composite materials

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 garment effectively retains body fluids, is comfortable due to its seamless construction, and prevents liquid from reaching the wearer's legs, offering a practical and hygienic solution for incontinence and menstrual needs.

Implementation Method 1

an absorbent composite... for the absorption and retention of a liquid

Methodology Applied
Scientific EffectAbsorption: Absorption (physical)

Implementation Method 2

a liquid-absorbent, stitch-bonded layer

Methodology Applied
Scientific EffectCapillary action: Capillary Action

Implementation Method 3

a barrier film... which prevents the passage of liquids such as blood and urine

Methodology Applied
Scientific EffectHydrophobic barrier: Hydrophobe

Implementation Method 4

The body portion is one or both of elastic or stretchable so as to provide a snug fit about the wearer's lower body part

Methodology Applied
Scientific EffectElasticity: Elasticity

Data Source

PatentUS9980861B2Absorbent garment
Publication Date: 2018.05.29 DEERIN ROBERT F
  • US9980861B2 patent drawing
  • US9980861B2 patent drawing
  • US9980861B2 patent drawing

AI summary

A washable, reusable garment for retention of body fluids when worn on a person's lower body part. The garment has a crotch portion and a body portion. The crotch portion has an absorbent composite, and a pocket adapted for receiving a removable absorbent pad. The body portion has a waist opening and is seamless except where attached to the crotch portion. The body portion and the crotch portion together form first and second leg openings.