Moisture Retaining Article With Gravity-Drain Leakproof Pocket
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing moisture retaining articles, such as nursing pads, have limited capacity for holding breast milk, leading to frequent leaks due to insufficient absorbency.
Innovation Solution
A moisture retaining article with a leakproof layer forming a pocket between inner and outer layers, allowing moisture to drain under gravity into a leakproof pocket, enhancing retention by utilizing a multi-layer assembly including a wicking, absorbing, and foam layer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If traditional absorbent materials are used in moisture retaining articles, then the article can absorb moisture, but the capacity is limited and leaks occur frequently
Solution Approach 1:
The article is divided into multiple functional layers including a leakproof layer, absorption layer, and isolation layer. The leakproof layer forms a leakproof pocket that segments the moisture retention function from the absorption function, allowing moisture to be contained in a dedicated pocket rather than relying solely on material absorbency.
Solution Approach 2:
A leakproof pocket is introduced as an intermediary structure between the absorption layer and the external environment. This pocket acts as a mediator that receives moisture from the absorption layer and prevents it from leaking, thereby enhancing both capacity and reliability.
2Quantity of substance
If the absorbency of materials is increased to enhance moisture retention, then more moisture can be held, but the article becomes thicker and less comfortable
Solution Approach 1:
Different layers of the article have different local qualities optimized for their specific functions. The absorption layer provides high absorbency where needed, while the leakproof layer provides containment, and the isolation layer provides protection. This localized optimization allows effective moisture retention without uniformly increasing thickness.
Solution Approach 2:
The leakproof pocket creates a three-dimensional space for moisture containment rather than relying on two-dimensional material thickness. By utilizing vertical space within the layered structure, the article achieves enhanced retention capacity without proportionally increasing overall thickness.
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 effectively retains moisture by gravity-driven drainage into a leakproof pocket, reducing leaks and providing enhanced absorbency beyond conventional limits.
Implementation Method 1
a leakproof pocket formed between the inner and outer layers at the lower region to allow moisture received from the person, to drain under gravity into the leakproof pocket
Implementation Method 2
a wicking layer extending from the top of the article to the bottom of the article
Implementation Method 3
a moisture absorbing layer located adjacent the wicking layer and bonded to the wicking layer and/or the outer layer
Data Source
Figure 1
Figure 2
Figure 2A~4
AI summary
Disclosed is a moisture retaining article 1 of or for use with an undergarment to be positioned adjacent a person's body and to receive moisture from a person wearing the article 1. The article 1 comprises a leakproof assembly defined between an inner and an outer layer of leakproof flexible material There is a mouth entrance 12 to be presented to the person in a manner to allow moisture from the person to drain via the mouth entrance 12 into a leakproof pocket 10 of the leakproof assembly located below the mouth entrance 12.