Smoking Article Lyocell Tow for Heat-Resistant Smoke Transfer
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Solution Overview
Problem
Conventional smoking articles using cellulose acetate tow in the mouthpiece portion melt at high temperatures, impairing smoke transfer and generating negative off-flavors, which affects the smoking experience.
Innovation Solution
Incorporating lyocell tow, composed of lyocell fibers, in the mouthpiece portion to maintain structural integrity at high temperatures and reduce heat sensation during initial puffs, while maintaining effective smoke filtration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If cellulose acetate tow is used in the mouthpiece portion, then the mouthpiece can be manufactured with conventional materials, but the tow melts at high temperatures (70°C or higher) causing deformation and interfering with smoke transfer
Solution Approach 1:
The patent changes the material parameter from cellulose acetate to lyocell, which has a higher melting point and does not deform at the operating temperatures (150-300°C) of the smoking article, thereby maintaining structural integrity while remaining manufacturable
Solution Approach 2:
The patent uses lyocell tow as a composite material that combines the desired manufacturability of conventional tow with superior heat resistance properties, creating a mouthpiece portion that maintains its shape and filtering function at high temperatures
2Object-generated harmful factors
If cellulose acetate tow is used in the mouthpiece portion, then the filtering function can be implemented, but the melted tow generates negative off-flavors and prevents proper filtration
Solution Approach 1:
The patent changes the material parameter from cellulose acetate to lyocell, which maintains its structural integrity at operating temperatures, thereby preventing the generation of off-flavors and ensuring smooth smoke transfer while maintaining effective filtration
Solution Approach 2:
The patent converts the potential harm of high-temperature operation into a benefit by using lyocell's heat-resistant properties to prevent melting, thereby eliminating off-flavor generation and smoke transfer interference while enhancing the overall smoking experience
3Productivity
If high temperature (150-300°C) is applied to heat the smoking article for tobacco component transfer, then vapor generation and component transfer are improved, but the mouthpiece tow melts and deforms
Solution Approach 1:
The patent changes the material parameter of the mouthpiece tow from cellulose acetate to lyocell, which has a higher thermal stability threshold, allowing the mouthpiece to withstand the high temperatures (150-300°C) required for efficient tobacco component transfer without melting or deforming
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
Lyocell tow prevents melting and effectively reduces heat sensation, enhancing the smoking experience by ensuring smooth smoke transfer and improved filtration efficiency.
Implementation Method 1
lyocell tow is applied to the mouthpiece portion to prevent the tow of the mouthpiece portion from melting due to the high temperature applied to heat the smoking article
Implementation Method 2
a cooling structure arranged between the support structure and the mouthpiece portion
Data Source
Figure 1
Figure 2
Figure 3~4
AI summary
There is provided a smoking article. The smoking article includes a medium portion, a mouthpiece portion arranged to be spaced apart from one side of the medium portion, a support structure arranged between the medium portion and the mouthpiece portion, and a cooling structure arranged between the support structure and the mouthpiece portion, wherein the mouthpiece portion includes lyocell tow including a plurality of lyocell fibers.