Paper-Wrapped Absorbent Articles With Local Antislip Stacking
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Solution Overview
Problem
Individually-wrapped absorbent articles, such as sanitary napkins and incontinence pads, slip easily when stacked due to the use of paper wrapping sheets with high smoothness, leading to reduced production efficiency during packaging.
Innovation Solution
The absorbent articles are equipped with antislip features on the wrapping sheet, including antislip agents, fastening tapes, pseudo-adhesive structures, and relief patterning to prevent slipping when stacked.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If paper material with high surface smoothness is used as a wrapping sheet, then environmental friendliness and hygiene are improved, but production efficiency deteriorates due to slipping during stacking
Solution Approach 1:
The patent applies antislip treatment only to specific regions of the wrapping sheet (such as the end surfaces or contact areas) rather than the entire surface. This localized approach maintains the overall smoothness and hygiene properties of the paper material while providing sufficient friction in the critical contact zones to prevent slipping during stacking and packaging operations.
Solution Approach 2:
The patent modifies the surface properties of the paper wrapping sheet by applying antislip agents or creating surface structures (such as embossing or roughening) that change the friction characteristics. This parameter change allows the paper to maintain its environmental benefits while achieving the necessary grip to prevent slipping during automated handling and stacking processes.
2Reliability
If antislip treatment is applied to the entire wrapping sheet, then slipping prevention is improved, but manufacturing cost increases
Solution Approach 1:
The patent implements antislip treatment only in specific regions where slipping is most likely to occur, such as the end surfaces or edges of the wrapping sheet that contact adjacent packages during stacking. This selective application reduces the amount of antislip material required and simplifies the manufacturing process compared to treating the entire surface, thereby lowering costs while maintaining effective slip prevention.
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 antislip features effectively reduce slipping between stacked absorbent articles, maintaining production efficiency and minimizing waste by using paper wrapping sheets.
Implementation Method 1
Antislip is provided to a surface of the individually-wrapped absorbent article to be in contact with another individually-wrapped absorbent article... the individually-wrapped absorbent article is less likely to slip against another individually-wrapped absorbent article
Data Source
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AI summary
[Object] To avoid reduction in production efficiency when multiple individually-wrapped absorbent articles are stacked and encased in a package. [Solution] An individually-wrapped absorbent article includes a wrapping sheet including paper, and an absorbent article individually wrapped with the wrapping sheet. Antislip is provided to a surface of the individually-wrapped absorbent article to be in contact with another individually-wrapped absorbent article when multiple individually-wrapped absorbent articles are stacked.