Rough Support Layer for Aerosol Generating Agent Heat Transfer
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Solution Overview
Problem
Existing heat-not-burn products face challenges with poor heat transfer between the heater and the aerosol generating agent, leading to delamination and inefficient aerosol generation.
Innovation Solution
The use of a support layer with a rough first surface, such as embossed or protuberance-covered surfaces, to improve adhesion and heat transfer between the aerosol generating agent and the support layer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a smooth support layer surface is used, then the manufacturing process is simple, but heat transfer from the heater to the aerosol generating agent is poor
Solution Approach 1:
The support layer surface is made rough only in the area where the aerosol generating agent is deposited, while other areas can remain smooth. This localized roughness improvement provides better heat transfer and adhesion where needed without significantly complicating the overall manufacturing process.
Solution Approach 2:
The support layer is designed with a porous structure that allows heat to transfer more effectively from the heater through the support layer to the aerosol generating agent. The porosity creates thermal pathways that improve heat transfer efficiency while maintaining manufacturing feasibility.
2Loss of energy
If a rough support layer surface is used, then heat transfer and adhesion are improved, but the manufacturing complexity increases
Solution Approach 1:
The roughness of the support layer surface is optimized within specific parameter ranges (roughness amplitude and wavelength) to achieve the necessary heat transfer and adhesion improvement without excessive complexity. By defining specific parameter ranges, the invention balances performance enhancement with manufacturing feasibility.
3Ease of operation
If the aerosol generating agent is applied on a smooth surface, then application is easy, but delamination occurs during heating
Solution Approach 1:
The support layer provides different surface characteristics in different areas: a rough surface where the aerosol generating agent is applied to ensure good adhesion, and smoother areas for easy handling and application. This localized differentiation maintains ease of operation while improving adhesion stability.
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
Enhanced adhesion and heat transfer result in improved aerosol generation efficiency, reducing delamination and curling issues, and providing a more effective delivery of volatilized components.
Implementation Method 1
heat transfer from a heater to the article will be improved
Implementation Method 2
heating aerosol generating agent to volatilize at least one component of the aerosol generating agent
Data Source
AI summary
An article for use with an apparatus for heating aerosol generating agent to volatilize at least one component of the aerosol generating agent, the article including a support layer having a first surface, wherein at least a portion of the first surface is rough and an aerosol generating agent on the portion of the first surface that is rough.