Triglyceride-Modified Moist Pouch Filling for Flavor and Seal Integrity
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Solution Overview
Problem
Moist oral pouched nicotine products face issues with flavor loss, nicotine stability, and seal strength during storage, leading to reduced shelf life and comfort due to the negative impact of flavors on pouch integrity.
Innovation Solution
Incorporating a triglyceride within the range of 0.5 wt% to 20 wt% in the moist filling material, which includes a particulate non-tobacco material, a non-encapsulated flavoring agent, a nicotine source bound to an ion-exchange resin or nicotine salt, and a pH adjusting agent, to enhance flavor preservation, nicotine stability, and seal strength.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If flavoring agents are added to enhance taste, then flavor intensity is improved, but pouch seal strength deteriorates due to negative impact on pouch integrity
Solution Approach 1:
The patent introduces a protective coating layer comprising food-grade polymers and triglycerides that acts as an intermediary between the flavoring agents and the pouch material. This coating prevents direct interaction between flavors and the pouch, thereby maintaining seal strength while preserving flavor intensity. The coating serves as a mediator that allows both objectives to coexist.
Solution Approach 2:
The patent modifies the chemical and physical parameters of the filling material by incorporating triglycerides (0.5-20 wt%) and adjusting pH levels (7.0-10.0). These parameter changes stabilize the interaction between flavors and pouch material, preventing degradation of seal strength while maintaining flavor characteristics throughout storage.
2Speed
If nicotine base is used to provide rapid nicotine release, then nicotine delivery speed is improved, but nicotine stability deteriorates due to oxidation and volatility
Solution Approach 1:
The patent transforms nicotine from base form to salt form (changing chemical state), which fundamentally alters its stability parameters. The nicotine salt formulation maintains adequate release speed while dramatically improving stability by reducing oxidation and volatility, allowing the product to meet both performance and stability requirements.
Solution Approach 2:
The patent introduces pH adjusting agents and protective coatings as intermediaries that create a controlled chemical environment. This intermediary system protects nicotine salts from degradation while maintaining the necessary release characteristics, effectively mediating between stability and delivery speed requirements.
3Ease of operation
If moisture content is increased to improve product comfort, then user comfort is improved, but shelf life deteriorates due to reduced stability during storage
Solution Approach 1:
The patent optimizes moisture content to a specific range (20-60 wt%) and combines it with pH adjustment (7.0-10.0) and triglyceride addition. This multi-parameter optimization creates a stable equilibrium that maintains comfort during use while preventing excessive moisture-related degradation during storage, thereby extending shelf life.
Solution Approach 2:
The patent creates a composite filling material system combining particulate non-tobacco material, nicotine salts, pH adjusting agents, triglycerides, and flavoring agents. This composite structure provides a balanced microenvironment that delivers comfort when used but resists degradation during storage, resolving the contradiction between comfort and shelf life.
4Productivity
If rapid release of flavor and nicotine is achieved to satisfy initial craving, then user satisfaction is improved, but product durability deteriorates leading to faster degradation
Solution Approach 1:
The patent uses pH adjustment (7.0-10.0) and triglyceride incorporation to modify the release kinetics of flavor and nicotine. These parameter changes enable sustained release profiles that provide adequate initial satisfaction while maintaining product integrity and reducing degradation rates throughout the product lifecycle.
Solution Approach 2:
The protective coating system acts as an intermediary that controls the release rate of active ingredients. It allows sufficient release for user satisfaction while simultaneously protecting the core material from rapid degradation, thereby maintaining durability without sacrificing performance.
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 use of triglycerides significantly reduces flavor loss, improves nicotine stability, and enhances seal strength, resulting in a longer shelf life and a more comfortable product with reduced buccal irritation.
Implementation Method 1
a significant amount of added flavor may be lost before the product is used due to, for instance, exposure to moisture, oxidation, and evaporation of the flavours
Implementation Method 2
a nicotine source bound to an ion-exchange resin
Data Source
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AI summary
The present disclosure relates to an oral pouched nicotine product comprising a moist filling material and a saliva-permeable pouch of a packaging material enclosing the moist filling material, wherein the moist filling material comprises a particulate non- tobacco material, such as microcrystalline cellulose, a flavouring agent, a nicotine source, a pH adjusting agent, and within the range of from about 0.5 to about 20% by weight, based on total weight of the filling material, of triglyceride. The moist filling material may further comprise a tobacco material within the range of from about 0 wt% to about 10 wt% based on the total weight of the moist filling material.