Single-Layer Capsule for Tactile Presence in Heated Inhalation
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Solution Overview
Problem
Non-combustion heating type flavor inhalation articles face issues where users may misperceive the presence of a breakable capsule due to softening from high temperature and humidity, especially after multiple inhalations, leading to confusion about the capsule's presence.
Innovation Solution
A non-combustion heating type flavor inhalation article with a breakable capsule having a single-layered core-shell structure, designed to maintain a specific stress range and rigidity, ensuring easy perception of the capsule's presence through distinct tactile feedback during inhalation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a breakable capsule is provided inside the filter material of a non-combustion heating type flavor inhalation article, then the flavor during inhalation can be changed by breaking the capsule, but the capsule may be softened by high temperature and humidity during inhalation, causing users to misperceive the presence of the capsule
Solution Approach 1:
The patent specifies precise parameter ranges for the capsule including diameter (3.0-4.5 mm), stress (2-6 N against 0.5 mm displacement), and breakage force (0.5-2.0 N). These controlled parameters ensure the capsule maintains sufficient rigidity to provide tactile feedback to users even when exposed to high temperature and humidity during inhalation, while still being breakable by user pressure. This resolves the contradiction by optimizing the physical parameters to balance softness for flavor release with hardness for user perception.
2Reliability
If a multi-layered capsule is used to maintain rigidity under high temperature and humidity, then the capsule presence can be perceived, but the manufacturing cost increases
Solution Approach 1:
The patent specifies that the capsule shell is made from a composite material containing gelatin (30-70 wt%) and glycerin (5-30 wt%), with optional additives totaling 5-40 wt%. This composite formulation creates a single-layered capsule that achieves the desired balance of rigidity and breakability under high temperature and humidity conditions. The composite material approach eliminates the need for multi-layered construction, reducing manufacturing complexity and cost while maintaining the required performance characteristics for capsule presence perception.
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 allows users to readily perceive the capsule's presence by providing a clear tactile sensation, enhancing user experience and reducing confusion about capsule availability.
Implementation Method 1
the inside of the filter material of a non-combustion heating type flavor inhalation article becomes hot and humid... the capsule, which has been softened
Data Source
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AI summary
A non-combustion heating type flavor inhalation article includes: an aerosol-generating segment; and a mouthpiece segment adjacent to the aerosol-generating segment. The mouthpiece segment includes a filter material, and a breakable capsule within the filter material, the breakable capsule having a single-layered core-shell structure. The capsule is spherical or approximately spherical with a diameter of 3.0 mm to 4.5 mm. The capsule has a stress of 2 N or more and 6 N or less against a displacement of 0.5 mm within 4 minutes from 10 minutes of storage under a condition of 45 °C and 90% RH.