Identical Curved Hip Panels for Disposable Absorbent Articles
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Solution Overview
Problem
Conventional hip panels in disposable absorbent articles often result in misalignment during wear, leading to leakage, sagging, and discomfort, and their manufacturing process generates significant waste due to inefficient cutting methods.
Innovation Solution
The design features hip panels with identical curved upper and lower edges, allowing for improved alignment and attachment of fasteners, and a manufacturing method that cuts a continuous web to form these panels without waste by creating identical curved edges simultaneously.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of substance
If conventional cutting methods are used to manufacture hip panels, then the manufacturing process is simple, but significant material waste is generated
Solution Approach 1:
The continuous web is segmented into multiple hip panels through a systematic cutting pattern that divides the web into usable panels while minimizing waste. The cutting apparatus makes multiple cuts across the web to create individual hip panels from a continuous supply material.
Solution Approach 2:
The cutting process utilizes two-dimensional patterns on the continuous web to optimize material usage. By arranging cut patterns in specific geometric configurations across the web surface, the method achieves efficient material utilization while maintaining manufacturing simplicity.
2Reliability
If the upper edge of the hip panel is curved downward, then the manufacturing process is conventional and simple, but misalignment occurs during wear causing leakage and discomfort
Solution Approach 1:
Instead of curving the upper edge downward as in conventional designs, the invention inverts the curvature direction by curving the upper edge upward. This reversal of the traditional design approach corrects the alignment issue where the fastener position causes misalignment during wear.
Solution Approach 2:
The curvature parameter of the upper edge is changed from downward (conventional) to upward (invention). This parameter modification alters the geometric configuration of the hip panel to achieve proper alignment and positioning during wear.
Data Source
AI summary
A method for manufacturing a hip panel for a disposable absorbent article includes feeding a web to a cutting apparatus. The web is cut at a first location with the cutting apparatus to form a curved lower edge of the hip panel. The web is cut at a second location with the cutting apparatus to form a curved upper edge of the hip panel. The curved lower edge and the curved upper edge are substantially identical with respect to each other.