Fragrance Mat with Controlled Diffusion via Foaming

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Conventional fragrance mats have difficulty maintaining fragrance over a long period due to ineffective diffusion methods.

Innovation Solution

A method involving material preparation with polyvinyl chloride and essential oil, followed by a specific process of foaming and cooling to achieve a controlled fragrance diffusion coefficient and flux, ensuring the fragrance is integrated before mat formation and lasts longer.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Duration of action of moving object

If fragrance substances are injected into the mat or additional diffuser objects are attached, then the mat has fragrance diffusion function, but the fragrance cannot be maintained for a long time

Engineering Contradiction:
Improvefragrance durationVSAvoidstructure complexity
Core Design Contradiction:
Duration of action of moving objectVSDevice complexity

Solution Approach 1:

The patent combines the fragrance substance (essential oil) directly into the mat material matrix during the foaming process, merging the fragrance function with the structural material. This integration eliminates the need for separate fragrance injection steps or attached diffuser components, while achieving sustained fragrance release through the controlled porous structure of the foam mat.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The patent controls the foaming parameters (temperature, pressure, expansion ratio) to create a specific porous structure with optimized pore size and distribution. This parameter control during manufacturing determines the diffusion characteristics of the essential oil, enabling long-lasting fragrance release without requiring complex additional mechanisms.

Inventive Principle:
Principle #35Parameter changes

2Duration of action of moving object

If fragrance substances are injected into the mat, then the mat has fragrance, but the fragrance diffusion is not controlled and does not last long

Engineering Contradiction:
Improvefragrance durationVSAvoidfragrance diffusion control
Core Design Contradiction:
Duration of action of moving objectVSManufacturing precision

Solution Approach 1:

The essential oil is incorporated into the mat material during the foaming process before the mat is fully formed. This preliminary incorporation allows the fragrance to be uniformly distributed within the material matrix and enables controlled diffusion through the developing porous structure, rather than attempting to inject fragrance into an already-formed mat.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The patent utilizes the porous structure inherent in foam mats to control fragrance diffusion. The pore size, distribution, and connectivity are controlled during foaming to regulate the release rate of essential oil, providing sustained and controlled fragrance diffusion without requiring additional control mechanisms.

Inventive Principle:
Principle #31Porous materials

3Duration of action of moving object

If additional objects with diffuser function are attached to the mat, then the mat has fragrance diffusion capability, but the structure becomes complex and fragrance duration is limited

Engineering Contradiction:
Improvefragrance durationVSAvoidstructure complexity
Core Design Contradiction:
Duration of action of moving objectVSDevice complexity

Solution Approach 1:

The patent merges the diffuser function directly into the mat structure by creating a porous foam material that inherently provides fragrance diffusion pathways. This eliminates the need for attached diffuser objects, simplifying the overall structure while maintaining or enhancing fragrance duration through the integrated porous matrix.

Inventive Principle:
Principle #5Merging (Combining)

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 fragrance mat maintains a consistent and long-lasting scent due to its specific diffusion properties, achieved without additional fragrance injection or diffuser attachments.

Implementation Method 1

applies a discharging control device to release the unformed fragrance mat foam material in a dropping-by-gravity manner such that the unformed fragrance mat foam material flows down on an upper surface of the central mesh and penetrates the central mesh to a lower surface of the central mesh

Methodology Applied
Scientific EffectGravity: Gravitation

Implementation Method 2

a cooling step, which cools down the original fragrance mat body to obtain the fragrance mat having a specific diffusion coefficient and a specific diffusion flux

Methodology Applied
Scientific EffectPhase change: Phase Change

Data Source

PatentUS11745397B2Fragrance mat and method of manufacturing the same
Publication Date: 2023.09.05 VONRANG INT CORP
  • US11745397B2 patent drawing
  • US11745397B2 patent drawing
  • US11745397B2 patent drawing

AI summary

A method of manufacturing a fragrance mat, comprising a material preparation step, which, by stirring at a predetermined stirring temperature, evenly mixes fragrance mat raw material and foaming related additives material to obtain an unformed fragrance mat foam material, the fragrance mat raw material containing polyvinyl chloride and essential oil, a mesh providing step, a material release step, a foaming step and a cooling step to obtain the fragrance mat having a specific diffusion coefficient and a specific diffusion flux.