Smoking Article Tactile Liquid Release Component
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Solution Overview
Problem
Existing smoking articles face challenges in retaining volatile flavorants during storage and providing a clear indication to consumers when the flavor is released, as current methods either result in rapid flavor loss or lack sensory feedback.
Innovation Solution
A smoking article incorporating a sustained release liquid delivery material with a closed matrix structure comprising a cross-linked polymer matrix and amphiphilic polysaccharides, featuring a frangible outer shell and inner core, which provides a novel tactile and audible sensation upon compression, enhancing flavor retention and release indication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If liquid flavourants are incorporated into the filter or tobacco rod, then flavour is provided during smoking, but the volatile flavourants migrate or evaporate during storage reducing the amount available
Solution Approach 1:
The flavourant is pre-encapsulated in a solid matrix structure before incorporation into the smoking article. This preliminary encapsulation action prevents volatile migration and evaporation during storage, preserving the flavourant quantity until the moment of use when compression releases the encapsulated flavourant.
Solution Approach 2:
The flavourant is enclosed within a solid matrix structure that acts as a protective shell. This shell prevents volatile loss during storage while allowing controlled release upon compression during smoking, effectively managing both retention and delivery of the flavourant.
2Loss of substance
If capsules are used to encapsulate flavourant, then flavourant loss during storage is reduced, but the capsules break open at a particular force providing only a single sensory indication
Solution Approach 1:
The solid matrix structure incorporates multiple domains with different mechanical properties and flavourant contents. When compressed, different domains break at different forces, creating a range of sensory indications rather than a single break point, thereby enhancing consumer feedback while maintaining flavourant retention.
Solution Approach 2:
The invention changes the mechanical parameters of the encapsulation structure by creating a solid matrix with varying domain strengths. This allows the structure to provide progressive sensory feedback across a range of compression forces, improving ease of operation through enhanced consumer awareness.
3Duration of action of moving object
If matrix material is used to provide flavourant, then flavourant is released more gradually than capsules, but there is little or no indication to the consumer that the flavourant has been released
Solution Approach 1:
The solid matrix structure incorporates visual or tactile indicators that change or provide feedback when compressed. This allows consumers to perceive when the flavourant is being released, addressing the information loss problem while maintaining the gradual release benefit of matrix materials.
Solution Approach 2:
The matrix structure is designed to provide sensory feedback to the consumer during compression. This feedback mechanism informs the consumer that flavourant release is occurring, eliminating the information loss while preserving the sustained release duration advantage.
4Loss of substance
If a closed matrix structure is used to trap liquid composition, then flavourant retention during storage is improved, but the structure complexity increases
Solution Approach 1:
The invention uses a composite solid matrix structure combining multiple materials to achieve both flavourant retention and controlled release. This composite approach provides the necessary complex functionality while managing structural complexity through material selection and formulation.
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 effectively retains flavorants during storage, provides a unique sensory experience upon compression, and ensures consistent flavor release over a range of forces, enhancing consumer satisfaction and product durability.
Implementation Method 1
A liquid composition is trapped within the domains of the polymer matrix
Implementation Method 2
A liquid composition is trapped within the domains of the polymer matrix and is releasable from the closed matrix structure upon compression of the material
Data Source
Figure 1
Figure 2
AI summary
A smoking article (10) incorporates a liquid release component (20), the liquid release component comprising a sustained release liquid delivery material comprising: a closed matrix structure comprising a cross-linked polymer matrix defining a plurality of domains; and a liquid composition that is trapped within the domains and is releasable from the closed matrix structure upon compression of the material. The force/displacement curve (30) obtained upon compression of the smoking article (10) at the location of the liquid release component (20) in a force/displacement test comprises a plurality of local minima (32) in the force level over a range of compression of at least 1 mm, wherein each of the local minima (32) corresponds to a reduction in the force level of at least 1 Newton.