Hygiene Package Adhesive Strip Asymmetry and Pre-Assembly
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Solution Overview
Problem
Existing processes for manufacturing hygiene article packages require the adhesive strip and perforation to be attached after the package is formed and filled, complicating the production line and making it difficult to obtain pre-assembled packages from suppliers.
Innovation Solution
A continuous process that integrates the adhesive strip and perforations into the package material on the production line before filling, allowing the package to be supplied pre-assembled with the adhesive strip offset from the centerline, bridging the perforations or weakness lines, and folding the material to create a W-shaped cross-section for efficient sealing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the adhesive strip is attached to the opening flap during or after package formation using conventional processes, then the package can be assembled with reclosing functionality, but the production process becomes more complex and time-consuming
Solution Approach 1:
The adhesive strip is pre-applied to the opening flap during the film forming process, before the package is assembled and filled. This preliminary action eliminates the need for separate adhesive application steps during package assembly, thereby simplifying the production process while ensuring reliable reclosing functionality
Solution Approach 2:
The adhesive strip application process is merged with the film forming process. By integrating these two operations into a single continuous process, the patent reduces the number of separate steps and equipment needed, simplifying the overall production system while maintaining product quality
2Ease of manufacture
If the adhesive strip is attached after package formation, then the package structure can be formed first, but the production efficiency decreases and pre-assembled packages cannot be obtained from suppliers
Solution Approach 1:
The adhesive strip is applied to the opening flap during film forming, allowing packages to be supplied pre-assembled from external manufacturers. This enables downstream manufacturers to receive ready-to-fill packages, eliminating the need for on-site adhesive application and significantly improving production efficiency
Solution Approach 2:
The integrated film forming and adhesive application process creates a universal solution that can be implemented by any package manufacturer. Pre-assembled packages can be supplied to multiple downstream customers with different filling requirements, increasing the versatility and market applicability of the manufacturing system
3Device complexity
If the adhesive strip is positioned centrally on the opening flap, then the package structure is symmetric and simple, but the opening mechanism lacks ergonomic convenience
Solution Approach 1:
The adhesive strip is positioned asymmetrically on the opening flap, offset from the centerline. This asymmetric positioning creates an optimized opening mechanism where the adhesive strip aligns with the user's natural gripping and pulling motion, significantly improving ergonomic convenience while maintaining simple package structure
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
This process simplifies the package production by enabling pre-assembled packages with improved ergonomic and convenient opening mechanisms, maintaining production efficiency and consistency, and facilitating integration into existing manufacturing processes.
Implementation Method 1
applying an adhesive strip to the package material, bridging the perforations or weakness lines
Data Source
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AI summary
The present invention relates to a package for hygiene articles. The package has an opening flap (20), which is fastened to the package by an adhesive strip (30). The adhesive strip is located non-centered of the surface of the package comprising the opening flap.