Aerosol Package Inner Pack Moisture Barrier
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Solution Overview
Problem
Existing aerosol provision system packaging fails to maintain freshness due to air permeability issues caused by gaps between folded sheet material flaps, leading to reduced product quality and increased material usage.
Innovation Solution
A package design featuring an inner pack made from a sheet material comprising at least 90% of a first material with low water vapor permeability, such as paper, and a hermetically sealed structure using a suitable adhesive, which reduces air permeability and extends freshness retention.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of substance
If sheet material is folded to form an inner pack, then material usage is reduced, but air permeability increases due to gaps between flaps
Solution Approach 1:
The patent changes the water vapour permeability parameter of the sheet material to less than 6 g/m2/24 hr, transforming a conventional material into one with superior moisture barrier properties that maintains freshness even with folded construction and potential gaps
2Reliability
If sheet material with low water vapour permeability is used, then freshness is maintained, but material cost increases
Solution Approach 1:
The patent specifies that the sheet material comprises at least 90% of a first material by mass, optimizing the composition to achieve the required low water vapour permeability while controlling material costs through precise compositional control
Solution Approach 2:
The sheet material is constructed as a composite with at least 90% first material and up to 10% second material, combining materials to achieve the desired low water vapour permeability property while managing cost effectiveness
3Reliability
If adhesive is used to seal the inner pack, then air permeability is reduced, but recyclability is compromised
Solution Approach 1:
The patent selects adhesive materials with specific properties that provide effective sealing while maintaining compatibility with recycling processes, changing the parameter of adhesive composition to balance sealing performance and environmental sustainability
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 solution effectively maintains the freshness of aerosol provision system components by minimizing water vapor transmission and allowing for easy access while ensuring recyclability and reduced material usage.
Implementation Method 1
the sheet material comprises at least 90% of a first material (by mass) and has a water vapour permeability of less than 6 g/m2/24 hr
Data Source
AI summary
The present invention relates to a package (1) for an aerosol provision system component or article. The package comprises a container, and an inner pack (2) located within the container. The inner pack comprises a sheet of material that is arranged to form the inner pack. The sheet material comprises at least 90% of a first material (by mass) and has a water vapour permeability of less than 6 g/m2/24 hr. The present invention also relates to a method of manufacture of a package.