Smoking Article Cooling Structure with Lyocell Tow for Heat Resistance
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional smoking articles face issues with cooling structures that deform or melt at high temperatures, leading to reduced tobacco component concentration, off-flavors, and inadequate cooling, which affect the smoking experience.
Innovation Solution
Incorporating a cooling structure made of lyocell tow composed of multiple lyocell fibers, which provides excellent heat resistance and moisture affinity, minimizing deformation and enhancing cooling efficacy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If a cooling structure is added to reduce smoke temperature, then the comfort of inhalation is improved, but the concentration of tobacco components (tar and nicotine) is reduced due to excessive air dilution
Solution Approach 1:
The cooling structure utilizes lyocell tow with inherent porous characteristics to enable selective moisture absorption while restricting excessive air intake. The porous structure allows water molecules to pass through via capillary action while maintaining structural integrity that prevents large amounts of air from diluting the tobacco components.
Solution Approach 2:
The invention changes the material parameter of the cooling structure from conventional cellulose acetate to lyocell, which has superior moisture affinity and heat resistance. This parameter change enables the cooling structure to effectively absorb excess moisture without requiring excessive air flow, thereby maintaining tobacco component concentration while achieving cooling.
2Ease of manufacture
If cellulose acetate (CA) tow is used in the cooling portion, then the structure can be formed, but the material melts or deforms at temperatures of approximately 70°C or higher
Solution Approach 1:
The invention changes the material parameter from cellulose acetate to lyocell, fundamentally altering the thermal properties. Lyocell maintains its structural parameters (shape, dimensions) at high temperatures up to approximately 200°C, eliminating the melting and deformation issues that occur with cellulose acetate at 70°C or higher.
Solution Approach 2:
The cooling structure is formed as a composite of lyocell fibers and binder, creating a material that combines the high-temperature stability of lyocell with the structural integrity provided by the binder. This composite structure maintains both ease of manufacture and high-temperature reliability.
3Reliability
If the cooling structure is made to withstand high temperatures, then the structural integrity is maintained, but the cooling effect may be reduced
Solution Approach 1:
The invention changes the moisture affinity parameter of the cooling structure material to that of lyocell, which has superior hydrophilic properties. This enables the structure to effectively cool smoke through moisture absorption and phase change mechanisms while maintaining structural integrity at high temperatures, resolving the apparent contradiction between heat resistance and cooling effectiveness.
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 lyocell tow maintains structural integrity and reduces moisture transfer, improving the smoking experience by maintaining tobacco component concentration and reducing heat sensation.
Implementation Method 1
by configuring the cooling structure with of lyocell tow composed of a plurality of lyocell fibers, an amount of moisture transferred during smoking may be effectively reduced due to the excellent moisture affinity of lyocell tow
Implementation Method 2
deformation of the cooling structure, which is caused by heat transferred from a heater configured to heat the smoking article or an aerosol generated within the smoking article, may be prevented or minimized due to the excellent heat resistance of the lyocell tow
Data Source
Figure 1
Figure 2
Figure 3(a)~4
AI summary
Provided is a smoking article having lyocell tow including a plurality of lyocell fibers. The smoking article includes a medium portion, a cooling structure arranged to be spaced apart from one side of the medium portion, and a support structure arranged between the medium portion and the cooling structure, wherein the cooling structure includes lyocell tow including a plurality of lyocell fibers.