Perfume Composition Modulation for Long-Range Fragrance Diffusion

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Solution Overview

Problem

Existing perfume dispensing devices fail to enhance the overall fragrance experience by providing a unique, multi-layered, and multisensorial perception without altering the odor profile, and improve fragrance diffusion in the air.

Innovation Solution

Incorporating a specific compound, such as N-(1H-pyrazol-5-yl)-N-(thiophen-2-ylmethyl)-2-(p-tolyloxy)acetamide, into the perfume composition to modulate the sensorial experience, enhancing fragrance perception and diffusion.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a perfume composition is dispensed in the air using conventional emanating devices, then the fragrance is delivered to the surrounding air, but the overall fragrance experience lacks enhanced perception and diffusion

Engineering Contradiction:
Improvefragrance perception qualityVSAvoidcomposition complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent introduces a specific compound (N-(1H-pyrazol-5-yl)-N-(thiophen-2-ylmethyl)-2-(p-tolyloxy)acetamide) as an intermediary substance that mediates between the perfume composition and the human sensory system. This compound acts as a modulator that enhances the perception and diffusion of the fragrance without being the fragrance itself, thereby improving fragrance experience while maintaining composition simplicity

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent modifies the physical or chemical parameters of the fragrance delivery system by incorporating a specific compound at defined concentrations (0.001-0.1% by weight). This parameter change in the composition enables enhanced fragrance perception and diffusion properties without fundamentally altering the device structure or complexity

Inventive Principle:
Principle #35Parameter changes

2Area of stationary object

If the fragrance diffusion is improved in the air, then the perception distance is extended, but the odor profile may be altered

Engineering Contradiction:
Improvefragrance diffusion areaVSAvoidodor profile stability
Core Design Contradiction:
Area of stationary objectVSStability of the object's composition

Solution Approach 1:

The compound serves as a mediator that enhances diffusion through physical or chemical mechanisms (such as volatility modulation or aerosol formation assistance) without becoming part of the odor profile itself. This allows extended fragrance diffusion area while maintaining odor profile stability, as the compound facilitates transport rather than contributing to the sensory character

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent applies the modulating compound in specific local concentrations within the composition (0.001-0.1% by weight) to achieve enhanced diffusion in the airborne phase while leaving the bulk composition and its odor profile unchanged. This localized application ensures diffusion improvement without altering the overall odor characteristics

Inventive Principle:
Principle #3Local quality

Data Source

PatentEP3355944B1Perfume emanating device
Publication Date: 2026.01.07 FIRMENICH SA
  • EP3355944B1 patent drawingFigure 1
  • EP3355944B1 patent drawingFigure 2
  • EP3355944B1 patent drawingFigure 3

AI summary

The present invention relates to the field of perfumery. It relates more particularly to perfume dispensing device. The device of the present invention comprises dispensing means and a liquid composition including a perfume and selected compounds which impacts the fragrance perception diffused in the surrounding air during use.