Packaging Coating for Aerosol Volatile Barrier

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Solution Overview

Problem

Existing packaging for aerosol delivering articles, such as those containing nicotine, fails to prevent the transfer of volatile materials to the packaging during logistics and consumption, leading to deterioration of the tobacco flavor over time.

Innovation Solution

A packaging solution that includes a base paper with a first coating layer on top and a second coating layer on the bottom, where the second coating layer contains a water-resistant agent, such as polyethylene or polylactic acid, to prevent the absorption of volatile materials.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If an aluminum laminated packaging is used to preserve tobacco taste, then the taste preservation is improved, but the environmental compatibility deteriorates

Engineering Contradiction:
Improvetaste preservationVSAvoidenvironmental compatibility
Core Design Contradiction:
ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent changes the material parameters of the packaging by replacing aluminum with a polymer coating system. The coating layers are designed with specific properties (water resistance, volatility barrier) to maintain taste preservation functionality while eliminating the harmful aluminum material, thus resolving the contradiction between reliability and environmental compatibility

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The patent uses a composite structure consisting of base paper with multiple coating layers (first coating layer and second coating layer). This composite material approach provides the necessary barrier properties for taste preservation without using aluminum, thereby maintaining functionality while improving environmental compatibility

Inventive Principle:
Principle #40Composite materials

2Object-affected harmful factors

If only a polymer sheet is used for packaging manufacturing, then the environmental compatibility is improved, but the molding difficulty increases

Engineering Contradiction:
Improveenvironmental compatibilityVSAvoidmolding difficulty
Core Design Contradiction:
Object-affected harmful factorsVSEase of manufacture

Solution Approach 1:

The patent modifies the physical parameters of the polymer material by adjusting its melting point and processing characteristics. The polymer is formulated to have appropriate flow properties during molding while maintaining its environmental benefits, thus resolving the contradiction between ease of manufacture and environmental compatibility

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The patent applies different properties to different parts of the packaging structure. The base paper provides structural integrity, while the coating layers provide barrier properties. This local differentiation allows the polymer-based packaging to be easily manufactured while maintaining the necessary functional properties

Inventive Principle:
Principle #3Local quality

3Quantity of substance

If the packaging is made without a water resistant agent, then the manufacturing cost is reduced, but the volatile material transfer increases

Engineering Contradiction:
Improvemanufacturing costVSAvoidvolatile material transfer
Core Design Contradiction:
Quantity of substanceVSLoss of substance

Solution Approach 1:

The patent changes the chemical parameters of the coating layers by incorporating a water resistant agent with specific molecular properties. This agent creates a barrier that prevents volatile material transfer while being applied in optimized quantities to control manufacturing costs, thus resolving the contradiction between manufacturing cost and volatile material transfer prevention

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 proposed packaging effectively reduces the transfer of volatile materials to the packaging, helping to preserve the tobacco flavor and maintain the quality of the aerosol delivering article for a longer period.

Implementation Method 1

the second coating layer includes a water resistant agent... transfer of a volatile material to the packaging may be prevented

Methodology Applied
Scientific EffectWater resistant agent barrier effect: Absorption (physical)

Data Source

PatentUS20250136353A1Packaging for accommodating aerosol delivering article
Publication Date: 2025.05.01 KT&G CO LTD
  • US20250136353A1 patent drawing

AI summary

The present disclosure relates to a packaging for accommodating an aerosol delivering article. The packaging includes a base paper; a first coating layer on a top of the base paper; and a second coating layer on a bottom of the base paper, the second coating layer includes a water resistant agent, and the aerosol delivering article includes tobacco granules having a pH of 8 or greater.