pH-Treated Aerosol Medium for Nicotine Transfer

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Solution Overview

Problem

Existing aerosol generating devices struggle to provide variable smoking taste intensities and efficient nicotine transfer under low-temperature heating conditions.

Innovation Solution

An aerosol generating system that includes an aerosol generating article with a pH-treated medium segment and a controller in the aerosol generating device to control the heating temperature, allowing for selective intensity adjustment of smoking taste and enhanced nicotine transfer.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If the heater heats the medium segment at a high temperature, then the nicotine transfer efficiency is improved, but the intensity of smoking taste becomes too strong and less controllable

Engineering Contradiction:

Improvenicotine transfer efficiencyVSAvoidadjustability of smoking taste intensity

Core Design Contradiction:

ProductivityVSAdaptability or versatility

Solution Approach 1:

The patent implements dynamic temperature control by enabling the controller to switch between multiple heating temperature levels (first heating temperature and second heating temperature). This allows the system to adaptively adjust the heating intensity based on user needs, providing variable smoking taste intensities while maintaining efficient nicotine transfer when required.

Inventive Principle:

Principle #15Dynamics

2Adaptability or versatility

If the heater operates in low-temperature heating mode, then the adaptability of smoking taste intensity is improved, but the nicotine transfer efficiency deteriorates

Engineering Contradiction:

Improveadjustability of smoking taste intensityVSAvoidnicotine transfer efficiency

Core Design Contradiction:

Adaptability or versatilityVSProductivity

Solution Approach 1:

The patent applies parameter changes by treating the medium segment with pH adjustment (raising pH to 6.0 or higher). This chemical parameter modification enables efficient nicotine transfer even at lower heating temperatures by altering the chemical environment to favor nicotine release, thus maintaining productivity while operating in adaptable low-temperature modes.

Inventive Principle:

Principle #35Parameter changes

3Productivity

If the medium segment is pH-treated to raise pH, then the nicotine transfer under low-temperature heating is improved, but the device complexity increases

Engineering Contradiction:

Improvenicotine transfer efficiency at low temperatureVSAvoidcomplexity of pH treatment process

Core Design Contradiction:

ProductivityVSDevice complexity

Solution Approach 1:

The patent implements preliminary action by pre-treating the medium segment with pH adjustment during the manufacturing process. This upfront chemical treatment prepares the medium to release nicotine efficiently at lower temperatures, eliminating the need for complex real-time pH control mechanisms during operation and reducing overall device complexity.

Inventive Principle:

Principle #10Preliminary action

4Adaptability or versatility

If the controller provides multiple heating temperature levels, then the versatility of smoking taste intensity is improved, but the device complexity increases

Engineering Contradiction:

Improvevariability of smoking taste intensityVSAvoidcomplexity of temperature control system

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent manages device complexity by implementing temperature control through parameter changes in the controller software/firmware rather than requiring complex hardware modifications. The controller can switch between predetermined temperature levels (first and second heating temperatures) using simple control logic, achieving versatility while maintaining relatively simple device architecture.

Inventive Principle:

Principle #35Parameter changes

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 system effectively adjusts the intensity of smoking taste and promotes nicotine transfer even under low-temperature heating conditions, ensuring a consistent and satisfying user experience.

Implementation Method 1

a vaporizer configured to generate an aerosol by heating a liquid composition and emit the generated aerosol toward the aerosol generating article

Methodology Applied

Scientific EffectHeating: Heating

Implementation Method 2

a thermally conductive wrapper configured to wrap the medium segment

Methodology Applied

Scientific EffectThermal conduction: Conduction (thermal)

Implementation Method 3

nicotine may be adsorbed into at least one of the first filter segment and the second filter segment

Methodology Applied

Scientific EffectAdsorption: Adsorption

Implementation Method 4

The medium segment may be pH-treated such that the pH thereof is in the range of 8.0 to 9.5

Methodology Applied

Scientific EffectpH treatment:

Implementation Method 5

a vaporizer configured to generate an aerosol by heating a liquid composition

Methodology Applied

Scientific EffectEvaporation: Evaporation

Data Source

PatentUS20250160398A1Aerosol generating article and aerosol generating system

Publication Date: 2025.05.22 KT&G CO LTD

AI summary

An aerosol-generating system according to various embodiments includes: an aerosol-generating article including a medium segment; and an aerosol-generating device, wherein the aerosol-generating article further includes: a first filter segment arranged at the upstream of the medium segment; and a second filter segment arranged at the downstream of the medium segment, and nicotine may be adsorbed to at least one of the first filter segment and the second filter segment.