Offset Adhesive Patch Layout for Asymmetrical Absorbent Articles
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Solution Overview
Problem
Conventional absorbent articles with symmetrical or asymmetrical wings face challenges in manufacturing processes when requiring asymmetrical configurations, leading to inefficiencies and material misalignment during production.
Innovation Solution
The absorbent article features offset adhesive patches on its wings and flaps, ensuring equal spacing and alignment, allowing for simplified manufacturing and improved adhesion, particularly in asymmetrical designs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If adhesive patches are positioned symmetrically on all wings, then manufacturing process is simplified, but asymmetrical designs cannot be accommodated
Solution Approach 1:
The patent applies different adhesive patch configurations to different wings based on their specific functional requirements. Front wings have adhesive patches positioned for forward attachment, while rear flaps have patches positioned for rearward attachment to the seat of undergarments. This local differentiation allows the manufacturing process to remain standardized while accommodating asymmetrical design requirements.
Solution Approach 2:
The adhesive patches are segmented and applied to specific wings and flaps rather than uniformly across all fastening elements. The front wings and rear flaps are treated as separate segments with distinct adhesive patch arrangements, enabling independent optimization of each component's attachment functionality while maintaining overall manufacturing efficiency.
2Manufacturing precision
If adhesive patches are spaced in rectangular configuration, then production alignment is improved, but asymmetrical wing configurations cannot be accommodated
Solution Approach 1:
Each wing and flap is equipped with adhesive patches positioned according to its specific geometric and functional characteristics. Front wings have patches arranged for forward attachment geometry, while rear flaps have patches arranged for rearward attachment to the seat area. This localized positioning maintains precise alignment during production while accommodating asymmetrical configurations.
Solution Approach 2:
The adhesive patch configuration is made dynamic and adaptable to different wing and flap positions rather than fixed in a rigid rectangular pattern. The patches are positioned relative to each fastening element's specific location and orientation, allowing the system to adapt to asymmetrical designs while maintaining manufacturing precision through standardized application processes.
3Adaptability or versatility
If multiple adhesive patches are provided on all wings, then fastening opportunities are increased, but material usage and complexity increase
Solution Approach 1:
Adhesive patches are provided on all four wings and flaps, which may be more than strictly necessary for basic functionality. This partial excess action ensures that sufficient attachment points are available for various wearing conditions and garment types, while the patches are strategically positioned to avoid unnecessary complexity in the overall configuration.
Solution Approach 2:
The adhesive patches are designed with universal applicability across different wing and flap configurations. Each patch can serve multiple fastening purposes depending on the specific article design and wearing conditions, allowing the same basic component to provide versatile fastening opportunities without increasing overall system complexity.
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 configuration enhances manufacturing efficiency and adhesion, accommodating asymmetrical designs while minimizing material waste and ensuring proper attachment to garments.
Implementation Method 1
The first and second front wings (9A, 9B) each include respective first and second crotch adhesive patches (11A, 11B) and the first and second rear flaps (10A, 10B) each include respective first and second rear adhesive patches (12A, 12B)
Data Source
AI summary
The disclosure relates to an absorbent article having a crotch portion comprising first and second front wings that extend outwardly from the crotch portion in a transverse direction (x) and a rear portion comprising first and second rear flaps that extend outwardly from the rear portion in the transverse direction (x). The first and second front wings each comprise respective first and second crotch adhesive patches, wherein the crotch adhesive patches are offset from each other in the longitudinal direction (y) by an offset distance dO, and the first and second rear flaps each comprise respective first and second rear adhesive patches, wherein the rear adhesive patches are also offset from each other in the longitudinal direction (y) by the same offset distance. Also disclosed is a method for manufacturing an absorbent article with offset adhesive patches.