Sustained Release Liquid Delivery Material for Smoking Articles
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Solution Overview
Problem
Existing smoking articles face challenges with volatile flavorants that evaporate during storage, leading to reduced flavor intensity and instability, as well as a lack of control over flavor release, which limits consumer experience.
Innovation Solution
A sustained-release liquid delivery material with a closed matrix structure that traps a flavor composition within domains, allowing for gradual release upon compression over a range of forces, providing flexibility and control over flavor intensity and timing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If liquid flavorants are incorporated into the smoking article using a liquid carrier, then the flavor intensity is enhanced, but the volatile flavorants tend to migrate or evaporate during storage, reducing the amount available during smoking
Solution Approach 1:
The patent introduces a liquid delivery material as an intermediary carrier that contains the volatile flavorant. This material is compressed during smoking to release the flavorant, preventing direct evaporation during storage while enabling controlled delivery during use. The liquid delivery material acts as a mediator between the storage state and the delivery state of the flavorant.
Solution Approach 2:
The patent changes the physical state and release parameters of the flavorant by incorporating it into a compressible liquid delivery material. The flavorant is held in a stable, non-volatile state during storage and only transitions to a releasable state when mechanical compression is applied during smoking, thereby controlling the timing and amount of flavorant delivery.
2Loss of substance
If capsules are used to encapsulate the flavorant, then the loss of volatile flavorants during storage is reduced, but the capsules break open at a particular force and release all flavorant at once, preventing sustained release
Solution Approach 1:
The patent employs a porous or cellular solid material structure within the liquid delivery material that allows for gradual compression and sustained release. The porous structure provides multiple compression stages, enabling the flavorant to be released progressively over a range of forces rather than all at once,从而实现 sustained release during smoking.
Solution Approach 2:
The liquid delivery material is formulated as a composite system combining a liquid carrier, a solid porous matrix, and the volatile flavorant. This composite structure allows the material to maintain stability during storage while enabling controlled, sustained release during compression, overcoming the limitations of simple capsule encapsulation.
3Adaptability or versatility
If more liquid additives are incorporated to adapt the smoke, then the consumer experience is enhanced, but the stability and retention of liquid additives during storage deteriorates
Solution Approach 1:
The liquid delivery material serves as an intermediary that stabilizes multiple liquid additives during storage. By incorporating the additives into this compressed-release system, the material protects them from premature evaporation or degradation while still allowing them to be delivered and adapt the smoke during smoking.
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 ensures improved retention of flavorants during storage, allowing for controlled and sustained flavor release during smoking, enhancing consumer experience and reducing the need for additional flavorants.
Implementation Method 1
A liquid composition is trapped within the domains and is releasable from the closed matrix structure upon compression of the material
Implementation Method 2
A liquid composition is trapped within the domains and is releasable from the closed matrix structure upon compression of the material
Data Source
AI summary
A smoking article (10) incorporates a sustained release liquid delivery material (20), the liquid delivery material comprising a closed matrix structure defining a plurality of domains. A liquid composition is trapped within the domains and is releasable from the closed matrix structure upon compression of the material. The liquid delivery material (20) provides a sustained release of the liquid composition over a range of force of at least 5 Newtons. Preferably, the liquid delivery material is provided within the filter (14) of the smoking article (10).