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IMPROVED TECHNOLOGY AND DEVICES FOR THE DIFFUSION OF VOLATILE SUBSTANCES, IN PARTICULAR FRAGRANCES

IP.com Disclosure Number: IPCOM000179522D
Publication Date: 2009-Feb-16
Document File: 4 page(s) / 204K

Publishing Venue

The IP.com Prior Art Database

Related People

Anne-Cécile Irvoas: AUTHOR [+3]

Related Documents

US 7,441,755: PATENT

Abstract

The Firmenich technology described relates to fragrance diffusion devices, namely air fresheners, comprising a fragrance reservoir and a wick diffusion surface based on US 7,441,755. It offers a high overall performance and design simplicity and flexibility that can really differentiate it on the market. Many optional attributes can be easily added to best answer the needs of the most demanding consumers, whilst preserving the technical characteristics of evaporative surface and absorbency defined in US 7,441,755, so as that ensure optimal performance over time. The device can address the user adaptation phenomenon by alternating between fragrances supplied in a variety of reservoirs, or offer counteraction to bad smells. Decorative versions can be designed to create an aesthetic ambiance. It also has the great advantage of being non powered or solar energy powered, and adapted to the use of concentrated fragrances if desired, making it one of the most eco-friendly air freshener devices. Any volatile or evaporable liquid substance can be used, such that the device can have a variety of functions: perfuming, antibacterial, insect repellent or attractant, deodorizing, etc, or even a combination of two or more of these.

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IMPROVED  TECHNOLOGY  AND  DEVICES  FOR  THE  DIFFUSION  OF  VOLATILE  SUBSTANCES,  IN  PARTICULAR FRAGRANCES 
  Authors: Anne‐Cécile Irvoas, Lyse Tranzeat and Nicholas O'Leary, Perfumery Division, Firmenich  
  Firmenich is one of the leading companies in the Flavor & Fragrance industry, supplying fragrances and  flavors worldwide for application in a large spectrum of consumer products.  

The  pleasant  odor  of  a  consumer  product  is  a  key  sensory  parameter  for  consumer  experience  and  choice,  all  the  more  so  when  it  comes  to  air  fresheners,  the  primary  function  of  which  is  to  deliver  fragrance to the surrounding air. Therefore Firmenich has a dedicated team specialised in the creation  of fragrances and other inventions for such applications.  
 

We  report  here  an  innovative  type  of  continuous  action  fragrance  diffuser  with  excellent  overall  performance, described in US patent 7, 441,755 and other patent applications first filed in 2002. 
 

The  liquid  diffuser  of  US  7,441,755  comprises  a  reservoir  containing  a  concentrated  perfume  and  a  diffusing  wick  in  contact  with  the  perfume.  The  unique  characteristics  of  the  wick  are  its  large  size  structure made of porous thin materials, resulting in an ability to absorb liquid in a constant, regular  manner, with an optimal lifetime for the device due to its low volume perfume diffusion.   
 
Indeed, an ideal air freshener is characterized by consistency in the diffused fragrance intensity and odor  performance and stability throughout use, clear visual end point cue and linear fragrance evaporation as  shown on the following chart: 
 

 

  Sensory and weight loss testing over product usage have shown that the devices based on Firmenich's  technology described in US 7,441,755 behave in such a way. This type of air freshener provided an ideal  answer to consumer needs, compared to prior non powered perfume diffusers available on the market.  Moreover,  the  performance  of  this  non‐powered  device   proved  comparable  to  that  of  electrically  powered air fresheners, but with added benefits such as portability, sustainability, aesthetics and design  flexibility.  
  A wide range of versatile features can easily be included in its simple design to meet consumers and  marketing constantly evolving needs, as described  hereafter, whilst preserving the essential technical  characteristics described in US 7,441,755.  

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