Absorbent Article Non-Bonding Front Structure for Body Stability
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Solution Overview
Problem
The absorbent articles experience position shift of the exterior body in the front waistline region due to deformation caused by the absorbent core, leading to potential detachment from the wearer.
Innovation Solution
The absorbent article incorporates non-bonding regions between the liquid-impermeable sheet and body sheet, and between the absorbent body and exterior body, allowing for controlled deformation and absorption of forces, thereby preventing the exterior body from floating and shifting.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the exterior body is arranged in the front waistline region on the non-skin surface side of the absorbent body, then the absorbent article can provide coverage over the wearer's abdomen, but the exterior body is prone to position shift and detachment when the wearer moves their leg
Solution Approach 1:
The patent applies local quality by creating a non-bonding region specifically at the front end part of the absorbent body where the exterior body is arranged. This localized area allows relative movement between the absorbent body and exterior body, while the rest of the structure remains bonded for stability. This resolves the contradiction by providing position stability in bonded regions while allowing adaptability to wearer movement in the non-bonding region.
Solution Approach 2:
The patent segments the absorbent body into a bonded region and a non-bonding region at the front end part. This segmentation allows different functional zones: the bonded region provides stable attachment, while the non-bonding region accommodates movement of the exterior body relative to the absorbent body during leg movement, preventing detachment while maintaining coverage.
2Strength
If the front end part of the absorbent body is made rigid to maintain structural integrity, then the absorbent body can maintain its shape, but the exterior body is more prone to floating away from the wearer during leg movement
Solution Approach 1:
The patent applies local quality by creating a non-bonding region specifically at the front end part of the absorbent body where the exterior body is arranged. This localized area allows relative movement between the absorbent body and exterior body, while the rest of the structure remains bonded for stability. This resolves the contradiction by providing position stability in bonded regions while allowing adaptability to wearer movement in the non-bonding region.
Solution Approach 2:
The patent segments the absorbent body into a bonded region and a non-bonding region at the front end part. This segmentation allows different functional zones: the bonded region provides stable attachment, while the non-bonding region accommodates movement of the exterior body relative to the absorbent body during leg movement, preventing detachment while maintaining coverage.
Data Source
AI summary
An absorbent article includes: front waistline region; rear waistline region; crotch region disposed between front waistline region and rear waistline region; absorbent body that straddles crotch region, front waistline region, and rear waistline region; front exterior body disposed in front waistline region on non-skin surface side of absorbent body. Absorbent body includes absorbent core and front end part extending toward front side from absorbent core, a liquid-impermeable sheet and a liquid-permeable body sheet overlapping liquid-impermeable sheet in thickness direction are disposed at the front end part of absorbent body. Absorbent article includes: sheet non-bonding region where liquid-impermeable sheet and body sheet are not bonded; and body non-bonding region where absorbent body and front exterior body are not bonded. Front end part includes duplicating region where sheet non-bonding region and body non-bonding region overlap to each other.