Absorbent Article Waist Part Hole Distribution for Visibility
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Solution Overview
Problem
The existing pull-on absorbent articles with through holes face challenges in visually identifying these holes due to creases formed by the contraction of elastic members, which hinders the perception of good air permeability.
Innovation Solution
The design includes an absorbent article with waist parts that have elastic members that expand and contract, where the waist part with a greater contractile force has more holes, allowing these holes to be easily visible when the elastic member is extended, thereby enhancing the visibility and perception of air permeability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If through holes are formed in the absorbent article to improve air permeability, then air permeability is improved, but the holes become hidden by creases formed from elastic member contraction, making them visually unidentifiable
Solution Approach 1:
The patent applies local quality by differentiating the hole distribution between waist parts based on their contractile forces. The waist part with greater contractile force (which creates more prominent creases) receives fewer holes, while the waist part with smaller contractile force receives more holes. This localized differentiation ensures that holes remain visible in regions where creases are less prominent, resolving the contradiction between maintaining air permeability and ensuring visual identifiability of holes.
2Ease of operation
If the elastic member contracts to provide snug fit, then comfort and fit are improved, but the through holes are contracted in the horizontal direction, reducing their visibility
Solution Approach 1:
The patent resolves this contradiction by applying local quality through differentiated hole distribution. The waist part experiencing greater contraction (higher contractile force) is designed with fewer holes to maintain visibility, while the waist part with smaller contraction has more holes. This localized adaptation allows the elastic member to contract for snug fit while preserving hole visibility in the regions where contraction is most pronounced.
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 design ensures that the holes can be easily identified when putting on the absorbent article, providing a clearer impression of good air permeability and improving air permeability both front and back.
Implementation Method 1
an elastic member that expands and contracts in the right-left direction
Data Source
Figure 1A~1B
Figure 2
Figure 3
AI summary
An absorbent article (1) including an up-down direction, a right-left direction, and a front-rear direction, which intersect with each other, includes: a front-side waist part (20); and a rear-side waist part (30), at least one of the front-side waist part (20) and the rear-side waist part (30) including an elastic member (25, 35) that expands and contracts in the right-left direction and holes (50) penetrating in the front-rear direction, of the front-side waist part (20) and the rear-side waist part (30), a waist part to another side (20) with a greater contractile force in the right-left direction including more of the holes than a waist part to one side (30) with a smaller contractile force in the right-left direction.