EP1663325A1 - Distributeur d'agent de modification d'air - Google Patents

Distributeur d'agent de modification d'air

Info

Publication number
EP1663325A1
EP1663325A1 EP04724316A EP04724316A EP1663325A1 EP 1663325 A1 EP1663325 A1 EP 1663325A1 EP 04724316 A EP04724316 A EP 04724316A EP 04724316 A EP04724316 A EP 04724316A EP 1663325 A1 EP1663325 A1 EP 1663325A1
Authority
EP
European Patent Office
Prior art keywords
dispenser
phase
container
air
wick
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP04724316A
Other languages
German (de)
English (en)
Inventor
John Daniel Robert Pickering
John Stanley Payne
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Robert McBride Ltd
Original Assignee
Robert McBride Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Robert McBride Ltd filed Critical Robert McBride Ltd
Publication of EP1663325A1 publication Critical patent/EP1663325A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01M—CATCHING, TRAPPING OR SCARING OF ANIMALS; APPARATUS FOR THE DESTRUCTION OF NOXIOUS ANIMALS OR NOXIOUS PLANTS
    • A01M1/00—Stationary means for catching or killing insects
    • A01M1/20—Poisoning, narcotising, or burning insects
    • A01M1/2022—Poisoning or narcotising insects by vaporising an insecticide
    • A01M1/2027—Poisoning or narcotising insects by vaporising an insecticide without heating
    • A01M1/2044—Holders or dispensers for liquid insecticide, e.g. using wicks
    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
    • A45D34/00—Containers or accessories specially adapted for handling liquid toiletry or cosmetic substances, e.g. perfumes
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L9/00—Disinfection, sterilisation or deodorisation of air
    • A61L9/01—Deodorant compositions
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L9/00—Disinfection, sterilisation or deodorisation of air
    • A61L9/01—Deodorant compositions
    • A61L9/012—Deodorant compositions characterised by being in a special form, e.g. gels, emulsions
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L9/00—Disinfection, sterilisation or deodorisation of air
    • A61L9/015—Disinfection, sterilisation or deodorisation of air using gaseous or vaporous substances, e.g. ozone
    • A61L9/04—Disinfection, sterilisation or deodorisation of air using gaseous or vaporous substances, e.g. ozone using substances evaporated in the air without heating
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L9/00—Disinfection, sterilisation or deodorisation of air
    • A61L9/015—Disinfection, sterilisation or deodorisation of air using gaseous or vaporous substances, e.g. ozone
    • A61L9/04—Disinfection, sterilisation or deodorisation of air using gaseous or vaporous substances, e.g. ozone using substances evaporated in the air without heating
    • A61L9/042—Disinfection, sterilisation or deodorisation of air using gaseous or vaporous substances, e.g. ozone using substances evaporated in the air without heating with the help of a macromolecular compound as a carrier or diluent
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L9/00—Disinfection, sterilisation or deodorisation of air
    • A61L9/015—Disinfection, sterilisation or deodorisation of air using gaseous or vaporous substances, e.g. ozone
    • A61L9/04—Disinfection, sterilisation or deodorisation of air using gaseous or vaporous substances, e.g. ozone using substances evaporated in the air without heating
    • A61L9/12—Apparatus, e.g. holders, therefor

Definitions

  • This invention relates to a dispenser and, in particular, to a device for dispensing an air modifying agent into the surrounding atmosphere.
  • Air modifying agents typically comprising air fresheners, de-odourisers, insect repellants and the like, can be dispensed in many different ways.
  • One way is to entrain the agent in a gel such that the agent evaporates when exposed to the atmosphere.
  • the gel may be packed in a moulded container, which container is vented to atmosphere at point of use.
  • Examples of alternatives to entraining the active ingredient or agent in gel comprise incorporating the agent in a liquid, the liquid being in contact with mat or wick. In use, the agent evaporates from the mat or wick.
  • the invention provides a dispenser for an air modifying agent, said dispenser including:
  • a wick extending into said container and operable to convey said air modifying agent to an emanation point external to said container.
  • said air modifying agent is entrained within said second phase.
  • said wick is further operable to convey said second phase to said emanation point.
  • said second phase includes a volatile silicone material.
  • said volatile silicone material comprises volatile methylsiloxane.
  • said container is transparent.
  • the invention provides a method of indicating the life of a dispenser of an air treatment agent, said method comprising entraining said air treatment in a volatile phase which is substantially immiscible in water; placing said volatile phase and a substantially aqueous phase in a container; providing a wick to draw said volatile phase from said container; and observing the depletion of said fluid phase.
  • said dispenser is further characterized in that one phase is substantially aqueous whilst the other phase includes a volatile silicone material.
  • Figure 1 shows an elevational view of a dispenser according to the invention.
  • the invention provides a dispenser 5 for dispensing an air modifying agent.
  • the dispenser includes a container 6 in which is contained a substantially aqueous phase 7 and an immiscible phase 8.
  • the immiscible phase is also preferably substantially liquid in form. The immiscible phase thus floats on the aqueous phase.
  • this air modifying agent will be a fragrance but it could also comprise, or include, insect repellants, anti-oxidising agents, de-odourising agents etc. The precise make-up of the air modifying agent does not form part of the invention.
  • the aqueous phase 7 is substantially water however salts and/or other additives, soluble in water, may be added to tailor the properties of the aqueous phase for specific applications. A small amount of preservative is generally added to this phase along with one or more dyes to give the desired colour.
  • the fluid or immiscible phase largely comprises a solvent for the air modifying agent.
  • This must be compatible with the carrier in which the air modifying agent is provided.
  • fragrances are provided in an oil based carrier however certain oil based solvents can present particular labeling requirements.
  • a class of volatile methylsiloxane fluids to be particularly suitable. These fluids have a low order of human toxicity and, surprisingly, can be drawn through wicks typically encountered in air freshening applications, without demonstrating the expected clogging effects.
  • the immiscible phase Using a fragrance system carried in an isobar base, we have found that satisfactory results can be achieved by formulating the immiscible phase to include a total isopar content of around 0 to 10% w/w, a fragrance content of about 5 to 30% w/w and a volatile silicone content of around 50 to 75% w/w. Dyes can also be added to give the required colour, the content of such dyes being unlikely to exceed 0.01 % w/w.
  • the ratio of aqueous phase to immiscible phase can be varied at will.
  • the immiscible phase 8 floats on the aqueous phase 7 leads to the provision of a liquid-based air treatment dispenser having a particularly pleasing appearance. This is enhanced still further if the container 6 is substantially transparent, and may be further enhanced by colouring the two phases differently.
  • a wick 10 is provided to convey the air modifying agent from the interior to the exterior of the container 6.
  • the wick 10 comprises a rod of polyester fibre with a non- woven wrap provided about the cylindrical outer surface.
  • the wick is displaced down so that the bottom edge thereof substantially contacts the inner base of the container 6.
  • both phases can be drawn up by the wick.
  • the wick need not, necessarily, be in the form of a rod as shown but may be of any compatible form which can draw the liquid from the container under a capillary action, and allow the air modifying agent to evaporate off, once outside the container.
  • the immiscible phase containing the air modifying agent is first drawn through the wick. Whilst no detailed study has been undertaken to understand why this is so, it is believed that factors such as the lower vapour pressures of the fragrance and oil-based solvents, and surface tension effects, are the cause. At the emanation point, defined substantially by the upper end 12 of the wick, the immiscible phase evaporates off and passes into the surrounding atmosphere.
  • the immiscible phase continues to evaporate off from the wick, the immiscible layer 8 within the container, visibly depletes.
  • the consumer has a clear visual gauge of the life of the dispenser. That is not to say that the efficacy of the dispenser ceases as soon as layer 8 disappears.
  • residual air modifying agent continues to be held in the wick and the device can therefore continue to operate until this residual agent has been displaced from the wick by the aqueous phase moving up the wick under capillary action.
  • a two phase, two layer air freshening dispenser according to the invention was made up as follows:
  • Volatile silicone (Dow Corning DC345) 68.5468
  • the two phases were combined in a transparent glass container, 35g of the immiscible phase being combined with 37g of the aqueous phase. As expected, the immiscible phase floats on top of the aqueous phase.
  • the wick had a weight of 4.29 mg for a length of 110mm and a diameter of 16mm.
  • the resulting air freshener performed extremely well in testing, giving good fragrance release.
  • the immiscible phase disappeared after 30 days when tested at a constant temperature of 21 °C, but the dispenser continued to release fragrance for a further period of 15 days as residual fragrance retained with the wick was displaced into the atmosphere by the aqueous phase being drawn up the wick.
  • the present invention provides a simple yet effective form of dispenser for an air modifying agent which includes two liquid phases. These two phases provide a pleasing aesthetic effect whilst also giving a visual indication of the remaining life of the product.

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Epidemiology (AREA)
  • Animal Behavior & Ethology (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Pest Control & Pesticides (AREA)
  • Toxicology (AREA)
  • Engineering & Computer Science (AREA)
  • Insects & Arthropods (AREA)
  • Wood Science & Technology (AREA)
  • Zoology (AREA)
  • Environmental Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Catching Or Destruction (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
  • Disinfection, Sterilisation Or Deodorisation Of Air (AREA)

Abstract

La présente invention concerne un distributeur (5) conçu pour distribuer un agent de modification d'air, tel qu'un désodorisant, un insecticide ou un neutraliseur d'odeur. Ce distributeur comprend un récipient (6) dans lequel se trouve une phase aqueuse (7) et une phase non miscible à l'eau (8). Un agent de modification d'air est entraîné dans la phase non miscible (8) et est amené à l'extérieur du récipient par une mèche (10). La phase non miscible comprend de préférence une silicone volatile.
EP04724316A 2003-04-04 2004-03-30 Distributeur d'agent de modification d'air Withdrawn EP1663325A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0307767A GB0307767D0 (en) 2003-04-04 2003-04-04 A dispenser
PCT/GB2004/001346 WO2004087225A1 (fr) 2003-04-04 2004-03-30 Distributeur d'agent de modification d'air

Publications (1)

Publication Number Publication Date
EP1663325A1 true EP1663325A1 (fr) 2006-06-07

Family

ID=9956159

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04724316A Withdrawn EP1663325A1 (fr) 2003-04-04 2004-03-30 Distributeur d'agent de modification d'air

Country Status (3)

Country Link
EP (1) EP1663325A1 (fr)
GB (1) GB0307767D0 (fr)
WO (1) WO2004087225A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1850885B1 (fr) 2005-02-16 2010-01-06 Givaudan SA Distributeur de substances volatiles dans le milieu ambiant
ES2566566T3 (es) 2013-05-14 2016-04-13 Symrise Ag Indicador de expiración bifásico para sistemas de liberación de perfume
EP2918295B1 (fr) * 2014-03-11 2018-01-17 Symrise AG Dispositif de libération de parfums avec indicateur de fin de vie
FR3029420B1 (fr) * 2014-12-05 2018-02-09 Denis Et Fils Sas Dispositif d'emanation d'un compose actif dans l'atmosphere comprenant une composition liquide biphasique
EP3120873A1 (fr) * 2015-07-23 2017-01-25 Eurvest Dispositif d'évaporation de liquide à deux phases
US9855361B2 (en) * 2015-12-14 2018-01-02 S. C. Johnson & Son, Inc. Compositions, delivery systems and refills for emitting two or more compositions

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4293095A (en) * 1979-11-09 1981-10-06 The Procter & Gamble Company Air treating device
US4739928A (en) * 1985-10-15 1988-04-26 The Drackett Company Air freshener dispenser
US4732321A (en) * 1986-07-17 1988-03-22 Dolan John E Passive air freshener
WO1994023765A1 (fr) * 1993-04-21 1994-10-27 Sara Lee/De N.V. Dispositif de diffusion en continu d'une substance active dans l'atmosphere
JPH11128331A (ja) * 1997-10-29 1999-05-18 Taiyo Corp 液体芳香剤組成物
GB2358586B (en) * 2000-01-31 2002-05-01 Reckitt & Colmann Prod Ltd Improvements in or relating to compositions
GB2371750B (en) * 2001-02-01 2004-08-11 Independent Fragrance Company Air fresheners
GB0124987D0 (en) * 2001-10-17 2001-12-05 Global Chemicals Uk Ltd An air freshener
EP1340513A1 (fr) * 2002-02-28 2003-09-03 Givaudan SA Dispositif désodorisant de l'air

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2004087225A1 *

Also Published As

Publication number Publication date
GB0307767D0 (en) 2003-05-07
WO2004087225A1 (fr) 2004-10-14

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