Omega-Fold Closing Element with Hidden Fasteners for Absorbent Articles
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Solution Overview
Problem
Existing production methods for reclosable absorbent sanitary articles face issues with exposed surface fastening elements that stick to fabrics during manufacturing, packaging, and use, complicating the process and requiring multiple closing elements.
Innovation Solution
A closing element with a non-woven web folded into an omega shape, featuring enclosed surface fastening elements between flaps, preventing exposure and adhesion during manufacturing and use, and allowing for efficient production in the Cross Direction process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If surface fastening elements are exposed on the waistband for reclosable functionality, then the absorbent sanitary article can be closed when worn, but the exposed fasteners stick to fabrics during manufacturing, packaging, and use
Solution Approach 1:
The surface fastening elements are nested within the omega-shaped non-woven web structure, specifically enclosed between the intermediate flaps and distal flaps. This nesting allows the fasteners to be accessible for closing functionality while being protected from external contact during manufacturing and packaging processes
Solution Approach 2:
The omega-shaped non-woven web acts as an intermediary structure that mediates between the surface fastening elements and the external environment. The folded flaps create a protective barrier that prevents direct contact between fasteners and fabrics during production while still allowing the fasteners to function when the article is worn
2Ease of operation
If multiple separate closing elements are applied to each absorbent sanitary article, then reclosable functionality is achieved, but the production process becomes complicated and requires more apparatus
Solution Approach 1:
The invention merges the closing element structure with the waistband assembly into a single integrated unit. The omega-shaped non-woven web is formed as one piece with the waistband, and the surface fastening elements are incorporated during the same production process, eliminating the need for separate closing element application steps
Solution Approach 2:
The omega-shaped non-woven web serves multiple functions simultaneously: it provides structural support, contains the surface fastening elements, and integrates with the waistband assembly. This multi-functionality reduces the number of separate components and simplifies the production process while maintaining reclosable functionality
Data Source
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AI summary
A closing element for producing reclosable absorbent sanitary articles, comprising a non-woven web (12) folded according to a general omega-shaped configuration and including a base (14), two intermediate flaps (18) connected to respective ends of the base (14) by respective first folds (20), two distal flaps (24) connected to respective ends of the respective intermediate flaps (18) by respective second folds (26), wherein the closing element (10) comprises surface fastening elements (30) arranged on respective surfaces (44) of the distal flaps (24) facing respective intermediate flaps (18).