Atomization Liquid Composition for Persistent Visible Smoke

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Non-heating type flavor inhalers using water-based aerosol sources exhibit low visibility and short duration of visible smoke, failing to meet user satisfaction compared to glycerol- or propylene glycol-based sources.

Innovation Solution

A liquid for atomization containing nicotine, a triglyceride with a carbon number of 6 or more, an emulsifier, and a water-based aerosol source with 70% or more water, enhances visible smoke visibility and duration through stable oil droplet dispersion.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If a water-based aerosol source is used in a non-heating type flavor inhaler, then the viscosity is reduced for efficient aerosol generation, but the visibility and duration of visible smoke decrease

Engineering Contradiction:
Improveaerosol generation efficiencyVSAvoidvisible smoke visibility
Core Design Contradiction:
ProductivityVSIllumination intensity

Solution Approach 1:

The patent uses a composite aerosol source containing both water and glycerol (or propylene glycol) in specific proportions (water: 70-96.7 wt%, glycerol/propylene glycol: 3.3-30 wt%). This composite formulation combines the low viscosity benefit of water with the high visibility benefit of glycerol/propylene glycol, resolving the contradiction between aerosol generation efficiency and visible smoke visibility

Inventive Principle:
Principle #40Composite materials

Solution Approach 2:

The patent optimizes the concentration parameters of water, glycerol/propylene glycol, nicotine, and emulsifier to achieve the desired balance. By adjusting these parameters within specific ranges, the formulation maintains low enough viscosity for efficient atomization while containing sufficient glycerol/propylene glycol to ensure high visibility and prolonged duration of visible smoke

Inventive Principle:
Principle #35Parameter changes

2Duration of action of moving object

If a water-based aerosol source is used, then the duration of aerosol generation is improved, but the persistence of high visibility state decreases

Engineering Contradiction:
Improveaerosol generation durationVSAvoidhigh visibility state persistence
Core Design Contradiction:
Duration of action of moving objectVSDuration of action of stationary object

Solution Approach 1:

The composite formulation of water with glycerol or propylene glycol creates an aerosol source that generates aerosols for extended periods while maintaining high visibility. The specific composition ratios ensure that the aerosol stream persists longer and the visible smoke remains highly visible throughout the extended duration, resolving the contradiction between aerosol generation duration and high visibility state persistence

Inventive Principle:
Principle #40Composite materials

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 results in high visibility and prolonged persistence of visible smoke, addressing user satisfaction by forming stable, visible smoke with a water-based aerosol source.

Implementation Method 1

an atomization section for atomizing the liquid for atomization... the atomization section has an atomizing mechanism by vibrations

Methodology Applied
Scientific EffectUltrasonic vibration: Ultrasonic Vibration

Implementation Method 2

a piezoelectric element substrate configured to generate surface acoustic waves

Methodology Applied
Scientific EffectSurface acoustic wave: Surface Acoustic Wave

Implementation Method 3

a liquid for atomization containing nicotine, a triglyceride, an emulsifier, and a water-based aerosol source... stable oil droplet dispersion

Methodology Applied
Scientific EffectEmulsion: Emulsion

Implementation Method 4

an emulsifier... stable oil droplet dispersion

Methodology Applied
Scientific EffectSurfactant effect: Surfactant

Data Source

PatentEP4023275B1Liquid for atomization
Publication Date: 2025.11.26 JAPAN TOBACCO INC
  • EP4023275B1 patent drawingFigure 1
  • EP4023275B1 patent drawingFigure 2
  • EP4023275B1 patent drawingFigure 3~4

AI summary

Provided are a liquid for atomization containing nicotine, a triglyceride, an emulsifier, and a water-based aerosol source; and a non-heating type flavor inhaler including a liquid storage section for storing the liquid for atomization and an atomization section that atomizes the liquid for atomization and that does not have a heating mechanism. The liquid for atomization forms visible smoke exhibiting high visibility and a long persistent state of high visibility.