Aerosol Substrate Extrusion With Vacuum Drying for Continuous Production

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Solution Overview

Problem

The manufacturing of aerosol generating substrates in smoking articles is complicated, involves high apparatus investment, has low production efficiency, and causes significant environmental pollution.

Innovation Solution

A manufacturing method involving extrusion molding of a mixed material at normal temperature followed by drying under negative pressure in a vacuum environment, using a manufacturing apparatus comprising an extruder and a vacuum drying device, to produce an aerosol generating substrate with uniform internal pore distribution and high manufacturability.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If traditional manufacturing methods are used for aerosol generating substrates, then the process can produce substrates, but the manufacturing process is complicated, apparatus investment is high, production efficiency is low, and environmental pollution is large

Engineering Contradiction:

Improveproduction efficiencyVSAvoidmanufacturing process complexity

Core Design Contradiction:

ProductivityVSDevice complexity

Solution Approach 1:

The patent changes the temperature parameter by conducting extrusion molding at normal temperature instead of high temperature, and changes the pressure parameter by using negative pressure for drying. These parameter changes simplify the manufacturing process and improve production efficiency while reducing environmental pollution

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The patent uses a vacuum environment (inert atmosphere) for drying the extrusion substrate, which replaces traditional high-temperature drying methods. This approach reduces environmental pollution and improves production efficiency by preventing material degradation and simplifying the drying process

Inventive Principle:

Principle #39Inert atmosphere (Inert environment)

2Ease of manufacture

If traditional manufacturing methods are used for aerosol generating substrates, then the process can produce substrates, but apparatus investment is high

Engineering Contradiction:

ImprovemanufacturabilityVSAvoidapparatus investment

Core Design Contradiction:

Ease of manufactureVSQuantity of substance

Solution Approach 1:

The patent employs simple, cost-effective equipment for extrusion molding and vacuum drying, replacing complex and expensive traditional manufacturing apparatus. The use of normal temperature extrusion and vacuum drying reduces the need for expensive high-temperature furnaces and complex processing equipment, thereby reducing apparatus investment while maintaining ease of manufacture

Inventive Principle:

Principle #27Cheap short-living objects (Disposable)

Solution Approach 2:

The patent replaces complex mechanical high-temperature processing systems with a simpler system combining normal temperature extrusion and vacuum drying. This substitution reduces apparatus investment by eliminating the need for expensive high-temperature equipment while maintaining or improving manufacturability

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

3Productivity

If traditional manufacturing methods are used for aerosol generating substrates, then the process can produce substrates, but production efficiency is low

Engineering Contradiction:

Improveproduction efficiencyVSAvoidenvironmental pollution

Core Design Contradiction:

ProductivityVSObject-affected harmful factors

Solution Approach 1:

The patent changes the temperature parameter from high temperature to normal temperature for extrusion molding, and uses negative pressure for drying. These parameter changes improve production efficiency by reducing processing time and energy consumption while simultaneously reducing environmental pollution from high-temperature emissions

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The patent uses a vacuum environment for drying, which improves production efficiency by enabling faster moisture removal at lower temperatures while reducing environmental pollution by eliminating the need for high-temperature combustion or extensive ventilation systems

Inventive Principle:

Principle #39Inert atmosphere (Inert environment)

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 achieves continuous production of aerosol generating substrates with high efficiency and low cost, ensuring stable rheological characteristics and effective aerosol and aroma release.

Implementation Method 1

A mixed material is extrusion molded under normal temperature to make the mixed material to form an extrusion substrate

Methodology Applied

Scientific EffectExtrusion: Extrusion

Implementation Method 2

The extrusion substrate is dried under negative pressure in a vacuum environment

Methodology Applied

Scientific EffectVacuum drying: Vacuum

Data Source

PatentUS20260096591A1Aerosol generating substrate manufacturing method and manufacturing device

Publication Date: 2026.04.09 SMOORE INTERNATIONAL HOLDINGS LIMITED

AI summary

A manufacturing method for manufacturing an aerosol generating substrate is provided. The manufacturing method includes: a mixed material is extrusion molded under normal temperature to make the mixed material to form an extrusion substrate; and the extrusion substrate is dried under negative pressure in a vacuum environment.