Disposable Base Fabric with Segmented Air-Permeable and Liquid-Diffusible Regions
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Solution Overview
Problem
Existing disposable diapers lack sufficient measures to prevent stuffiness and improve user comfort due to inadequate absorption and ventilation of liquids such as urine and sweat.
Innovation Solution
A disposable article comprising a base fabric with a laminated structure of air-permeable fibrous sheets and a liquid-diffusible fiber material, integrated with elastic members to form shirring parts, enhancing moisture transpiration, heat dissipation, and moisture permeability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If multiple elastic members are intermittently bonded between two sheet materials to form shirring parts, then the feel and beauty of appearance are improved, but the stuffiness measure of the absorbent body is insufficient
Solution Approach 1:
The sheet materials are divided into multiple regions with different properties: air-permeable regions for ventilation and liquid-diffusible regions for absorption. This segmentation allows simultaneous achievement of aesthetic shirring parts and functional stuffiness prevention.
Solution Approach 2:
Different regions of the sheet material are given different local properties: some regions are made air-permeable for ventilation and appearance, while other regions are made liquid-diffusible for absorption and stuffiness prevention, allowing each region to fulfill its specific function optimally.
2Quantity of substance
If a disposable base fabric with paper material fiber sheet is used, then moisture absorption is improved, but ventilation and heat dissipation are insufficient
Solution Approach 1:
The base fabric is segmented into air-permeable regions that facilitate ventilation and heat dissipation, and liquid-diffusible regions that enhance moisture absorption, allowing both functions to coexist without compromising either.
Solution Approach 2:
The sheet material combines different material properties in a composite structure: air-permeable regions provide ventilation pathways while liquid-diffusible regions provide absorption capacity, achieving both heat dissipation and moisture absorption simultaneously.
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 provides a user-friendly disposable article with improved moisture absorption, quick drying, and ventilation, reducing stuffiness and enhancing comfort and wearability.
Implementation Method 1
multiple elastic members (5) arranged inside said base fabric (1), said base fabric (1) having a large number of shirring parts (6) formed by expansion and contraction of said multiple elastic members (5)
Implementation Method 2
a fiber material 4 having liquid diffusibility, which is interposed between said first fibrous sheet 2 and said second fibrous sheet 3
Data Source
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AI summary
To provide a user-friendly disposable article including a disposable base fabric provided with at least one of a permeable sheet and a fiber sheet, and multiple elastic members that are joined to at least one of the permeable sheet and the fiber sheet so as to have a joined part and a non-joined part; and a joining part for joining the disposable base fabric and an article to be attached so that the multiple elastic members give an elastic force to a surface to be applied to the skin, arranging the disposable base fabric as the surface to be applied to the skin.