Parallel Alkaloid-Containing Sheet Casting to Reduce Damage

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

The existing process for producing homogenized tobacco sheets is prone to damage due to their fragility and stickiness, necessitating a method that minimizes sheet damage during manufacturing.

Innovation Solution

A method involving the formation of parallel sheets from a slurry on a movable support, where the sheets are kept separated and dried simultaneously, using a tank with outlets to distribute the slurry onto a conveyor belt, ensuring smaller, uniform sheets are produced without the need for splicing.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If a large sheet is produced and then split into smaller sections, then the production process is completed, but the sheet is prone to breaking due to fragility and stickiness

Engineering Contradiction:

Improveproduction process completionVSAvoidsheet integrity

Core Design Contradiction:

ProductivityVSReliability

Solution Approach 1:

The invention divides the sheet production process into multiple parallel smaller sheets instead of producing one large sheet and splitting it later. By casting multiple smaller sheets simultaneously on the movable support, the process eliminates the need for subsequent splitting operations that cause sheet damage, thereby maintaining sheet integrity while completing production.

Inventive Principle:

Principle #1Segmentation

2Productivity

If a large sheet is produced, then the production output is high, but the drying process is slower and less uniform

Engineering Contradiction:

Improveproduction outputVSAvoiddrying time

Core Design Contradiction:

ProductivityVSLoss of time

Solution Approach 1:

The invention segments the sheet production into multiple smaller parallel sheets. These smaller sheets have greater surface area to volume ratio, enabling faster and more uniform drying compared to a single large sheet. The movable support transports all smaller sheets simultaneously through the drying process, maintaining high productivity while reducing drying time and improving uniformity.

Inventive Principle:

Principle #1Segmentation

3Productivity

If multiple process steps are performed sequentially, then the sheets are produced, but the process complexity increases and sheet damage risk increases

Engineering Contradiction:

Improvesheet productionVSAvoidprocess complexity

Core Design Contradiction:

ProductivityVSDevice complexity

Solution Approach 1:

The invention merges multiple sheet production operations into a single simultaneous casting process. Multiple smaller sheets are cast and dried in parallel on the same movable support, eliminating the need for sequential production and subsequent splicing operations. This reduces process complexity and minimizes handling steps that could cause sheet damage.

Inventive Principle:

Principle #5Merging (Combining)

4Length of moving object

If sheets are produced with splicing, then larger sheets are achieved, but the need for splicing increases handling and damage risk

Engineering Contradiction:

Improvesheet sizeVSAvoidhandling ease

Core Design Contradiction:

Length of moving objectVSEase of operation

Solution Approach 1:

Instead of producing one large sheet and cutting it into smaller sections, the invention inverts the approach by producing multiple smaller sheets simultaneously from the beginning. These smaller sheets are designed to be the final product size, eliminating the need for splicing and subsequent cutting operations, thereby improving handling ease and reducing damage risk.

Inventive Principle:

Principle #13The other way round (Inversion)

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 approach reduces sheet damage and enables faster, more uniform drying, allowing for efficient production of smaller sheets suitable for further processing without the need for splicing.

Implementation Method 1

supplying slurry from the outlets on a movable support so as to form a plurality of parallel sheets of a material containing alkaloids

Methodology Applied

Scientific EffectDeposition: Deposition (physical)

Implementation Method 2

keeping the parallel sheets of material containing alkaloids separated on the movable support while moving the movable support

Methodology Applied

Scientific EffectAdhesion prevention:

Implementation Method 3

enables faster, more uniform drying

Methodology Applied

Scientific EffectEvaporation: Evaporation

Data Source

PatentUS12446611B2Method and apparatus for producing a plurality of sheets of material containing alkaloids

Publication Date: 2025.10.21 PHILIP MORRIS PRODUCTS SA

AI summary

The invention relates to a method for the production of a plurality of sheets of a material containing alkaloids, the method including the steps of: •(100) providing a slurry including a material containing alkaloids and water in a tank; •(101) providing the tank with a plurality of outlets; •(102) supplying slurry from the outlets on a movable support so as to form a plurality of parallel sheets of material containing alkaloids; and•keeping the parallel sheets of material containing alkaloids separated on the movable support while moving the movable support. The invention also relates to an apparatus (1) for the production of a plurality of sheets of a material containing alkaloids.