Absorber Article Skin Contact Sheet Positioning
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Solution Overview
Problem
Existing absorbent articles face issues with positional instability of the skin contact sheet at the crotch part, increased material and production costs due to the use of stretchable materials for urine/feces separation, and leakage of urine onto the second leak preventer, leading to contact and mixing with feces.
Innovation Solution
An absorbent article design featuring a skin contact sheet that floats above the absorber, with a urine/feces separation member that couples to the skin contact sheet at the crotch part and extends to the second leak preventer, forming an enclosed space to prevent urine/feces contact, and using non-stretchable materials for the separation member to reduce costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a skin contact sheet is fixed only at the front and rear end parts, then the skin contact sheet can float above the absorber to avoid contact with urine and feces, but positional displacement occurs at the crotch part leading to instability
Solution Approach 1:
The fixing points are segmented into multiple locations including the crotch part, in addition to the front and rear end parts. This segmentation allows the skin contact sheet to be secured at critical positions while maintaining its floating configuration above the absorber, preventing displacement at the crotch area while preserving the design's core benefits.
2Adaptability or versatility
If stretchable materials are used for the bridging member to perform urine/feces separation function, then the bridging member can deform to follow body irregularities and movements, but material costs and production costs increase
Solution Approach 1:
The bridging member is designed with dynamic characteristics through its structural configuration rather than material selection. The member can deform and adapt to body movements and irregularities through its geometric design and connection points, eliminating the need for expensive stretchable materials while maintaining adaptability to wearer's body changes.
Solution Approach 2:
The invention changes the approach from material parameter (stretchability) to structural parameter (geometric configuration) to achieve deformability. By optimizing the bridging member's shape, length, and connection points, it can follow body irregularities and movements without requiring costly elastic materials.
3Quantity of substance
If urine is received by the absorber in the rear body, then urine absorption capacity is increased, but urine may transfer onto the second leak preventer and mix with feces
Solution Approach 1:
The skin contact sheet acts as an intermediary barrier between the absorber and the second leak preventer. It allows urine to be absorbed by the absorber in the rear body while preventing direct transfer of urine onto the second leak preventer where feces are received, thus eliminating the mixing issue while maintaining high absorption capacity.
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 ensures no positional displacement of the skin contact sheet, effectively prevents skin contact with urine/feces, and reduces production costs by eliminating the need for stretchable materials, while maintaining efficient urine and feces separation.
Implementation Method 1
an absorber which contains a super absorbent polymer and which is capable of absorbing a bodily fluid
Data Source
Figure 1(A)~1(D)
Figure 2(A)~2(D)
Figure 3(A)~3(B)
AI summary
Provided is an absorbent article which has a skin contact sheet that is present so as to float from the surface of an absorber, and which has no positional displacement at the crotch part. The absorbent article includes: an absorbent article body part that has a first leak preventer and an absorber; a second leak preventer in sheet form that is arranged, above the absorber, from a middle part to a rear end part of the absorbent article body part, the second leak preventer having an enclosed space formed in bag form on a lower side by sealing a periphery part except for a front end part to the absorbent article body part; a skin contact sheet that is arranged, above it, between a front part of the absorbent article body part and a rear part of the absorbent article body part, and that makes contact with a wearer's skin and that is spaced apart from the absorber at parts other than a front end part and a rear end part, at the time of use; and a urine/feces separation member in sheet form, wherein a front part or a middle part thereof couples to a part of the skin contact sheet corresponding to a crotch part, a rear part thereof extends, on a lower side of the second leak preventer, up to at least the front end part of the second leak preventer, and right and left side parts thereof couple to the absorbent article body part.