Hygiene Packaging Unit With Segmented Adhesive Sealing
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Solution Overview
Problem
Existing packaging units for hygiene articles fail to provide a secure, hygienic, and discreet disposal method for used items, especially when immediate disposal is not possible, as they often lack effective sealing to prevent staining and odor leakage.
Innovation Solution
A packaging unit formed from a sheet of material with microencapsulated adhesive on its edge zones, allowing for easy opening and reclosable sealing, using a combination of microencapsulated adhesive and a different sealing means to ensure strong and hygienic closure, suitable for both new and used articles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a pressure sensitive adhesive is used for both initial sealing and resealing, then the package can be easily opened and resealed, but the adhesive strength for resealing is compromised
Solution Approach 1:
The edge zone is divided into two distinct portions: an inner edge portion with microencapsulated adhesive for strong resealing, and an outer edge portion with pressure-sensitive adhesive for easy opening. This segmentation allows each portion to perform its specific function optimally without compromise.
Solution Approach 2:
Different adhesive types are applied to different locations on the same edge zone. The inner edge portion uses microencapsulated adhesive for strong bonding, while the outer edge portion uses pressure-sensitive adhesive for easy manipulation. This local differentiation resolves the contradiction between strength and ease of operation.
2Strength
If a strong adhesive is used for sealing, then the package provides strong sealing, but the package becomes difficult to open
Solution Approach 1:
The sealing function is segmented into two zones: the inner edge portion uses microencapsulated adhesive for strong sealing, while the outer edge portion uses pressure-sensitive adhesive for easy opening. This allows the package to be both strongly sealed and easily opened.
Solution Approach 2:
Different adhesive characteristics are localized to different regions. The inner portion provides strong sealing strength, while the outer portion provides ease of opening. This local quality differentiation resolves the contradiction between sealing strength and ease of opening.
3Reliability
If the packaging unit is designed for discrete disposal, then hygiene is improved, but the packaging must be tightly sealed to prevent staining and odor
Solution Approach 1:
The sealing mechanism is segmented into two functional zones on the edge: microencapsulated adhesive for strong sealing and pressure-sensitive adhesive for easy opening. This segmentation achieves tight sealing for hygiene without requiring complex mechanisms.
Solution Approach 2:
The adhesive properties are changed through microencapsulation, allowing the adhesive to provide strong bonding when needed for disposal sealing, while remaining simple to apply and effective. This parameter change achieves reliable sealing without 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
The packaging unit effectively prevents staining and odor leakage while maintaining high reclosability, ensuring a secure and hygienic disposal of used hygiene articles with a closure rate of over 75% after 1 hour, even when exposed to external forces.
Implementation Method 1
at least a part of said edge zone is provided with microencapsulated adhesive
Implementation Method 2
the packaging unit provides for a possibility of forming an easily openable package for a new article and a tightly sealed package for a used article
Data Source
Figure 1A~1C
Figure 2A~2C
Figure 3A~3B
AI summary
A packaging unit for hygiene articles and a method for producing the same. The packaging unit being formed from a sheet of material having an inner surface (2) and an outer surface (3), the inner surface (2) comprising an edge zone (4), the sheet having at least one folding axis (5), the folding axis dividing said sheet into a first region (7) and a second region (8), the sheet may be folded along said folding axes (5) with the first (7) and second (8) regions in an overlapping configuration, at least a part of the edge zone (4) is provided with microencapsulated adhesive.