Paper Bag Top Seal Structure for Stable Absorbent Article Packaging
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Solution Overview
Problem
Existing disposable personal hygiene absorbent articles are typically packaged in plastic materials that are not environmentally sustainable, posing issues such as low degradability and recyclability, and transitioning to paper materials introduces new challenges like fragility and damage during handling.
Innovation Solution
A package comprising a bag made of paper material with a gable-like top seal held by an adhesive patch, which provides stability and reduces damage, using a self-adhesive layer for resealing to maintain compactness and protect the contents.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If plastic packaging materials are used, then versatility and flexibility are improved, but environmental sustainability deteriorates
Solution Approach 1:
The patent changes the material parameter from plastic to paper, transforming the packaging from non-degradable to biodegradable, thereby resolving the environmental harm issue while maintaining packaging functionality
Solution Approach 2:
The patent uses composite paper materials with specific properties (strength, flexibility, biodegradability) to achieve both environmental sustainability and packaging versatility, combining multiple material characteristics in a single paper-based solution
2Object-affected harmful factors
If paper packaging materials are used, then environmental sustainability is improved, but strength and resistance to damage deteriorates
Solution Approach 1:
The patent optimizes paper material parameters including basis weight, fiber composition, and physical strength properties to achieve sufficient mechanical strength while maintaining biodegradability, resolving the contradiction between environmental sustainability and packaging strength
Solution Approach 2:
The patent employs composite paper structures with enhanced mechanical properties, combining different paper layers or treatments to achieve both environmental friendliness and damage resistance during handling and transport
3Reliability
If hot-melt adhesives are used for sealing, then sealing effectiveness is improved, but production complexity and environmental compatibility deteriorates
Solution Approach 1:
The patent removes hot-melt adhesives from the sealing process, extracting the harmful element and replacing it with a simpler, more environmentally compatible sealing method that reduces production complexity
Solution Approach 2:
The patent enables the paper packaging to seal itself through inherent material properties or simpler mechanical means, eliminating the need for complex hot-melt adhesive application systems and achieving both effective sealing and reduced production 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 paper-based package maintains stability and compactness, reduces production issues associated with hot-melt adhesives, and allows for easy recycling while ensuring the absorbent articles remain intact during handling and storage.
Implementation Method 1
The package (1) further comprises at least one adhesive patch (400) configured to hold the top seal (170) folded onto one of the first and the second top surfaces (171, 172)
Data Source
AI summary
A package including a bag and at least two absorbent articles arranged in the bag, the bag being made of a first paper material, wherein the bag has a sealed bottom, a top seal, and a peripheral wall extending between the bottom and the top seal. The peripheral wall includes a front wall, an opposite rear wall, first and second side walls connecting the front and rear walls, a first top surface extending between the top seal and the front wall, and a second top surface extending between the top seal and the rear wall. The top seal has been formed by adhering inner surface top portions of the peripheral wall to one another. The package further includes at least one adhesive patch configured to hold the top seal folded onto one of the first and the second top surfaces.