Segmented Tobacco Material with Controlled Surface Roughness
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Solution Overview
Problem
There is a need for a tobacco material that can provide different flavors at various stages of smoking and a method for manufacturing such a material, allowing for the adjustment of flavor transfer timing, rate, and delivery.
Innovation Solution
A tobacco material comprising a core with a first tobacco mixture and a shell surrounding it, where the first mixture includes flavor substances and the second mixture includes tobacco particles, with the shell having a surface roughness of about 5.0 to 10.0, allowing for controlled flavor release through the formation of fine holes during smoking.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a single uniform tobacco mixture is used throughout the filter, then the manufacturing process is simple, but the flavor delivery is inconsistent throughout smoking
Solution Approach 1:
The tobacco material is divided into distinct segments: a core region containing first tobacco particles and a shell region containing second tobacco particles. This segmentation allows different flavor substances to be delivered at different stages of smoking, with the core providing initial flavor and the shell providing sustained flavor release.
Solution Approach 2:
Different regions of the tobacco material are assigned different properties. The core region has a specific composition optimized for initial flavor delivery, while the shell region has a different composition optimized for sustained flavor release. The shell also has a specific surface roughness (Ra of 5.0-10.0) that controls the timing and rate of flavor substance transfer.
2Adaptability or versatility
If flavor substances are added to tobacco particles, then flavor delivery is enhanced, but the surface roughness control becomes more difficult
Solution Approach 1:
The surface roughness of the shell is controlled within a specific range (Ra of 5.0-10.0) to optimize flavor substance transfer. This parameter control ensures that the shell can effectively regulate the release of flavor substances from the core while maintaining manufacturability through established processes.
3Ease of manufacture
If a shell with low surface roughness is used, then the structure is smooth and easy to manufacture, but flavor substance transfer is insufficient
Solution Approach 1:
The surface roughness of the shell is optimized to a specific range (Ra of 5.0-10.0) that balances manufacturability with effective flavor substance transfer. This parameter optimization ensures that the shell can adequately control flavor release while remaining feasible to produce using standard manufacturing techniques.
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 tobacco material effectively provides distinct flavors at both early and late stages of smoking by adjusting flavor transfer timing and rate, ensuring consistent flavor delivery and suitability for mass production.
Implementation Method 1
the shell has a surface roughness (Ra) of about 5.0 to about 10.0... allowing for controlled flavor release through the formation of fine holes during smoking
Data Source
AI summary
A tobacco material includes a core including a first tobacco mixture, and a shell surrounding at least a portion of the core and including a second tobacco mixture, wherein the first tobacco mixture includes first tobacco particles and a flavor substance, the second tobacco mixture includes second tobacco particles, and the shell has a surface roughness (Ra) of about 5.0 to about 10.0.