Wet Wipe Packaging Structure for Easy Single-Sheet Removal
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Solution Overview
Problem
The existing pop-up type package structure for wet wipes faces difficulties in easy sheet removal when the impregnation rate of chemicals is increased or the weight of the fabric is increased, as the sheets become interconnected by a water screen, making it hard to take them out one by one from the package body.
Innovation Solution
A package structure with a convex region protruded towards the opening, allowing a space between the package surface and the convex region, enabling independent sheet extraction by forming a four-layered structure in one direction and a two-layered structure in another, with the pressing device only applying pressure to the end portions of the laminated body during packaging.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the impregnation rate of chemical is increased, then the functional performance of wet wipes is improved, but the sheets become interconnected by water screen making it difficult to take them out one by one
Solution Approach 1:
The patent divides the laminated body into multiple independent sheets that can be separated. By creating a package structure where sheets are stacked with their short edges aligned and folded in the same direction, each sheet can be individually removed without dragging subsequent sheets, thus resolving the interconnection problem caused by high impregnation rates.
Solution Approach 2:
The patent extracts the disturbance factor (interconnection between sheets) by designing a specific folding and stacking arrangement. The sheets are folded back on themselves in the same direction and stacked with short edges aligned, which prevents the water screen from connecting adjacent sheets, allowing easy extraction of individual sheets.
2Strength
If the weight of original fabric is increased, then the strength and durability of wet wipes are improved, but the sheets become interconnected making it hard to take them out one by one
Solution Approach 1:
The patent segments the laminated body into individually removable sheets by aligning short edges and folding in the same direction. This segmentation prevents the fabric weight from causing interconnection, as each sheet is structurally independent despite the increased fabric weight improving overall strength.
3Productivity
If the sheets are tightly packed in the package body, then the packaging efficiency is improved, but the sheets cannot be easily separated and removed
Solution Approach 1:
The patent applies local quality by creating a specific folded structure at the short edges of the sheets. The sheets are folded back on themselves in the same direction, creating a local structural difference that enables easy separation while maintaining tight packing in the package body. This localized folding arrangement allows sheets to be densely packed yet easily separated when needed.
Data Source
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AI summary
In order to achieve both ease of removal and an increase in the rate of impregnation by a predetermined chemical, in this packaging structure of a package (100) of wet wipes, a convex region (T) is formed at a position containing a region that faces the opening (21) of a main package body (20) and that is on the upper surface of a stacked body (800) of wet wipes. The convex region (T) is formed protruding towards the main package body (20). A space (S) is formed between the region (corresponding to the ends (800A, 800B)) aside from the convex region (T) formed on the wet wipes and the upper surface (20a) to which the opening (21) of the main package body (20) is provided.