Alkaloid Sheet Production Using Low-Water Powder Slurry
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
There is a need for a process to produce an alternative material containing alkaloids for heat-not-burn products that reduces the use of cellulose fibers, which are typically used to enhance tensile strength but require high water content and energy for drying, while maintaining control over the composition and flavor of the final product.
Innovation Solution
A method involving grinding a material containing alkaloids to a powder, combining it with a binder, aerosol former, and water to form a slurry, which is then applied to a substrate sheet of fibers to create a sheet of material containing alkaloids, minimizing the need for added fibers and reducing water content, thereby decreasing drying time and energy requirements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If cellulose fibres are added to the slurry to enhance tensile strength, then the sheet strength is improved, but the water content must be increased which leads to higher energy consumption for drying
Solution Approach 1:
The invention extracts and removes cellulose fibres from the slurry composition entirely. Instead of adding fibres to achieve tensile strength, the patent formulates a fibre-free slurry containing only tobacco powder, binder, aerosol former, and water, thereby eliminating the need for high water content required to suspend fibres and subsequently eliminating the high energy consumption associated with drying fibre-containing slurries.
Solution Approach 2:
The invention changes the composition parameters of the slurry by setting the fibre content to zero or substantially zero. This parameter change fundamentally alters the drying requirements, as fibre-free slurries can be processed with much lower water content (30-55% as specified in the patent), thereby reducing the energy parameter for the drying step while maintaining adequate sheet strength through the binder system.
2Stability of the object's composition
If high water content is used in the slurry to facilitate processing, then the slurry homogeneity is improved, but the drying time and energy requirements increase
Solution Approach 1:
The patent optimizes the water content parameter to a specific range (30-55% of total slurry weight) that achieves adequate homogeneity for processing without excessive water. This parameter optimization allows the slurry to be sufficiently homogeneous for consistent sheet formation while minimizing the drying time and energy required, avoiding the pitfalls of both too little water (poor homogeneity) and too much water (excessive drying time).
Solution Approach 2:
The invention uses a binder substance that replicates the structural and binding functions traditionally performed by cellulose fibres. The binder creates a cohesive matrix that holds the tobacco powder particles together, achieving slurry stability and sheet strength without requiring the high water content normally needed to prevent fibre settling and maintain homogeneity in fibre-containing systems.
3Strength
If cellulose fibres are added to the slurry, then the sheet tensile strength is improved, but the control over composition and flavor is reduced
Solution Approach 1:
The invention removes cellulose fibres from the slurry composition, eliminating the variable that fibres introduce to the system. This extraction simplifies the composition control, as the patent can precisely control the amounts of tobacco powder, binder, aerosol former, and water without having to account for fibre variability, fibre-to-water ratio variations, and fibre distribution uniformity issues that complicate composition control in traditional fibre-containing systems.
4Strength
If cellulose fibres are used in the slurry, then the sheet strength is improved, but the drying energy and space requirements increase
Solution Approach 1:
The patent extracts cellulose fibres from the slurry formulation, eliminating the primary source of drying energy consumption. Fibres require high water content to maintain suspension and achieve adequate sheet strength, and removing this water during drying consumes substantial energy. By formulating a fibre-free slurry that achieves strength through binder chemistry rather than fibre physics, the patent dramatically reduces the drying energy requirement while maintaining sheet integrity.
Solution Approach 2:
The invention creates a composite material system where tobacco powder, binder, aerosol former, and water work together as an integrated formulation. This composite approach allows the binder to provide structural support and the tobacco particles to be suspended and bound effectively without fibre reinforcement, enabling a drying process that requires less energy and occupied space compared to traditional fibre-based systems.
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
This method allows for a homogeneous slurry with reduced water and energy usage, resulting in a self-supporting sheet with uniform drying and better control over the composition and flavor of the aerosol produced, while saving energy and space.
Implementation Method 1
drying a slurry to form a self-supporting sheet
Data Source
AI summary
The invention relates to a method for the preparation of a sheet of a material containing alkaloids, said method comprising: —grinding a material containing alkaloids to a powder; —combining the powder with a binder, an aerosol former and water, so as to form a slurry, wherein the slurry comprises: •the powder of the material containing alkaloids in an amount comprised between about 40 percent and about 70 percent of the total weight of the slurry; •the water in an amount comprised between about 30 percent and about 55 percent of the total weight of the slurry; •the binder in an amount comprised between about 0 percent and about 1 percent of the total weight of the slurry; •the aerosol former in an amount comprised between 1 percent and about 5 percent of the total weight of the slurry; —applying the slurry to a substrate sheet including fibres so as to form a sheet of a material containing alkaloids.