US20110192412A1 - Device and formulation - Google Patents
Device and formulation Download PDFInfo
- Publication number
- US20110192412A1 US20110192412A1 US13/122,977 US200913122977A US2011192412A1 US 20110192412 A1 US20110192412 A1 US 20110192412A1 US 200913122977 A US200913122977 A US 200913122977A US 2011192412 A1 US2011192412 A1 US 2011192412A1
- Authority
- US
- United States
- Prior art keywords
- composition
- hair
- silicone
- nebuliser
- head
- 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.)
- Abandoned
Links
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Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/02—Cosmetics or similar toiletry preparations characterised by special physical form
- A61K8/04—Dispersions; Emulsions
- A61K8/06—Emulsions
-
- 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
- A45D19/00—Devices for washing the hair or the scalp; Similar devices for colouring the hair
- A45D19/02—Hand-actuated implements, e.g. hand-actuated spray heads
- A45D19/026—Hand-actuated implements, e.g. hand-actuated spray heads having brush or comb applicators
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/72—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds
- A61K8/84—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds obtained by reactions otherwise than those involving only carbon-carbon unsaturated bonds
- A61K8/89—Polysiloxanes
- A61K8/891—Polysiloxanes saturated, e.g. dimethicone, phenyl trimethicone, C24-C28 methicone or stearyl dimethicone
- A61K8/892—Polysiloxanes saturated, e.g. dimethicone, phenyl trimethicone, C24-C28 methicone or stearyl dimethicone modified by a hydroxy group, e.g. dimethiconol
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
- A61Q5/00—Preparations for care of the hair
-
- A—HUMAN NECESSITIES
- A46—BRUSHWARE
- A46B—BRUSHES
- A46B11/00—Brushes with reservoir or other means for applying substances, e.g. paints, pastes, water
- A46B11/001—Brushes with reservoir or other means for applying substances, e.g. paints, pastes, water with integral reservoirs
-
- A—HUMAN NECESSITIES
- A46—BRUSHWARE
- A46B—BRUSHES
- A46B2200/00—Brushes characterized by their functions, uses or applications
- A46B2200/10—For human or animal care
- A46B2200/104—Hair brush
Definitions
- the present invention relates to a hair grooming device and a formulation for use therewith.
- the present invention is concerned with the problem of deposition of a benefit agent, particularly high molecular weight silicone from a hair grooming device.
- the present invention provides a hair grooming device comprising a head, a nebuliser, a power supply therefore and a reservoir containing a composition to be applied to the hair during use by the nebuliser, the composition an emulsified composition wherein the viscosity of the emulsion is less than 8 cSt 25° C.
- the head is bristle or tooth-bearing, more preferably the device is a comb or brush. Most preferably it is a brush.
- the nebuliser is selected from those known in the art.
- the nebuliser comprises a gauze defined by a rigid ring, a reservoir for containing a composition to be nebulised and a circuit connected to the power supply.
- a nebuliser is commercially available from Aerogen®.
- the gauze is convex with regard to the reservoir. This improves the movement of the nebulised fluid on to the hair during use.
- the nebuliser is located within the head and the head also comprises an aperture for releasing the nebulised fluid during use on to the hair.
- the aperture is a hole or slot in the head. In a preferred embodiment there is a plurality of apertures.
- the aperture is located centrally on the brush head. More preferably, the aperture is surrounded by bristles. Where there are more than one aperture they are preferably arranged symmetrically on the brush head to provide uniform release of nebulised.
- the device is a comb it is preferred that there is a plurality of apertures located uniformly on the comb head.
- the nebuliser is located in a chamber in the device and the chamber is connected to the exterior by a channel.
- the device comprises a handle which houses the power source.
- the power source could be separate and the device powered through the mains.
- Benefit agents can be selected from the group consisting of fragrances, silicone oils, waxes, hydrocarbons, higher fatty acids, essential oils, hair styling polymers, colourants, hair conditioners, hair cleansers, hair growth promoters, vitamins, hair straighteners, hair growth stimulants, hair growth retardants, hair shedding inhibitors, antibacterial compounds, antifungal compounds, anti-inflammatory compounds, anti-pruritic agents, sebum suppressants, sunscreens and mixtures thereof.
- a particularly preferred benefit agent is silicone.
- Suitable silicones include polydiorganosiloxanes, in particular polydimethylsiloxanes which have the CTFA designation dimethicone. Also particularly suitable for use compositions of the invention are polydimethyl siloxanes having hydroxyl end groups, which have the CTFA designation dimethiconol.
- the viscosity of the emulsified silicone itself is preferably at least 10,000 cSt (25° C.).
- the viscosity of the silicone itself is preferably at least 60,000 cSt (25° C.), most preferably at least 500,000 cSt (25° C.), ideally at least 900,000 cSt (25° C.).
- the viscosity does not exceed 3M cSt (25° C.).
- Emulsified silicones for use the invention will typically have an average silicone particle size (D50) in the composition of less than 1000 nm, preferably less than 800 nm, more preferably less than 700 nm, ideally it ranges from 100 to 800 nm, more preferably from 150 nm to 600 nm.
- D50 average silicone particle size
- Suitable silicone emulsions for use in compositions of the invention are available from suppliers of silicones such as Dow Corning and GE Silicones. The use of such pre-formed silicone emulsions is preferred for ease of processing and control of silicone particle size.
- Such pre-formed silicone emulsions will typically additionally comprise a suitable emulsifier such as an anionic or nonionic emulsifier, or mixture thereof, and may be prepared by a chemical emulsification process such as emulsion polymerisation, or by mechanical emulsification using a high shear mixer.
- Suitable pre-formed silicone emulsions include emulsions DC2-1766, DC-1785, DDC-1788, DC2-1865 and DC2-1870, all available from Dow Corning. These are all emulsions/microemulsions of dimethiconol. Preferred silicones are DC5-7051, particularly preferred are DC1788 and DC 1785.
- the silicone level is preferably present at from 0.1 to 40% wt of the total composition, more preferably from 0.5 to 35% wt. especially from 1 to 30% wt.
- the level of silicone that can be deposited is dependent on the silicone used.
- compositions for use with the invention suitably comprises a carrier.
- this carrier is water.
- the levels of carrier in the total composition are above 60 wt % of the total composition, more preferably above 70 wt %, most preferably above 80 wt %.
- the viscosity of the final composition is preferably from 1 cSt to 8 cSt at 25° C. a more preferably from 2 cSt to 7.5 cSt (25° C.), most preferably they have a viscosity above 3.5M cSt (25° C.).
- nebulising a silicone emulsion it is found that more silicone can be deposited at higher composition viscosities than if a solution of silicone is used.
- the products are left on hair after application and not immediately washed off (within 10 minutes of application). Such products are known as leave in compositions.
- the pH of the formulation is preferably from 2.5 to 6 at 25° C. More preferably from 3 to 5.
- Suitable emulsifying agents include nonionic, cationic, anionic surfactants, or mixtures thereof. If such an emulsifying agent is used, it is preferably present at a level of from about 0.01% to about 7.5% by weight based on total weight of the composition.
- FIG. 1 is a schematic section of a brush according to the invention
- FIGS. 2 a, b and c are plan views of a brush according to the invention.
- FIG. 1 shows a brush head 1 connected to a handle 2 which houses a power supply 3 .
- the head 1 houses a nebuliser 10 which consists of a support 5 for a gauze 7 and a reservoir 6 containing a hair care composition.
- the brush head 1 also has bristles 8 depending there from and an aperture 9 in the head 1 for release of the nebulised hair care composition.
- FIG. 2 shows three embodiments of apertures according to the invention.
- FIG. 2 a shows a brush head 1 with an aperture 9 which runs centrally down the brush head and is surrounded on all sides by bristles 8 .
- FIG. 2 b there are three apertures spaced uniformly and perpendicular to the general longitudinal axis of the brush (not shown).
- FIG. 2 c there are six apertures arranged in two lines of three diamond shaped apertures.
- each aqueous emulsion was nebulised into a sealed container of known weight. The water was evaporated from the container and the amount of silicone nebulised was measured by re-weighing the container.
- DC5-7051 (2 wt % in water) and DC200 350cSt in isododecane were applied using a nebuliser to dry hair.
- 2.5 g TA switches which were laid flat.
- An X-ray fluorescence sample was taken from the centre of the switch and the level of silicone measured.
Abstract
Hair grooming device comprising a head, a nebuliser, a power supply therefore and a reservoir containing a composition to be applied to the hair during use by the nebuliser, the composition comprising an emulsified composition wherein the viscosity of the emulsion is less than 8 CSt 25° C.
Description
- The present invention relates to a hair grooming device and a formulation for use therewith.
- The present invention is concerned with the problem of deposition of a benefit agent, particularly high molecular weight silicone from a hair grooming device.
- Accordingly, the present invention provides a hair grooming device comprising a head, a nebuliser, a power supply therefore and a reservoir containing a composition to be applied to the hair during use by the nebuliser, the composition an emulsified composition wherein the viscosity of the emulsion is less than 8 cSt 25° C.
- Preferably the head is bristle or tooth-bearing, more preferably the device is a comb or brush. Most preferably it is a brush.
- The nebuliser is selected from those known in the art. Preferably, the nebuliser comprises a gauze defined by a rigid ring, a reservoir for containing a composition to be nebulised and a circuit connected to the power supply. Such a nebuliser is commercially available from Aerogen®.
- Preferably, the gauze is convex with regard to the reservoir. This improves the movement of the nebulised fluid on to the hair during use.
- Preferably, the nebuliser is located within the head and the head also comprises an aperture for releasing the nebulised fluid during use on to the hair. Preferably, the aperture is a hole or slot in the head. In a preferred embodiment there is a plurality of apertures.
- Where the device is a brush it is preferred that the aperture is located centrally on the brush head. More preferably, the aperture is surrounded by bristles. Where there are more than one aperture they are preferably arranged symmetrically on the brush head to provide uniform release of nebulised.
- Where the device is a comb it is preferred that there is a plurality of apertures located uniformly on the comb head.
- Preferably, the nebuliser is located in a chamber in the device and the chamber is connected to the exterior by a channel.
- Preferably, the device comprises a handle which houses the power source. Alternatively, the power source could be separate and the device powered through the mains.
- Benefit agents can be selected from the group consisting of fragrances, silicone oils, waxes, hydrocarbons, higher fatty acids, essential oils, hair styling polymers, colourants, hair conditioners, hair cleansers, hair growth promoters, vitamins, hair straighteners, hair growth stimulants, hair growth retardants, hair shedding inhibitors, antibacterial compounds, antifungal compounds, anti-inflammatory compounds, anti-pruritic agents, sebum suppressants, sunscreens and mixtures thereof.
- A particularly preferred benefit agent is silicone. Suitable silicones include polydiorganosiloxanes, in particular polydimethylsiloxanes which have the CTFA designation dimethicone. Also particularly suitable for use compositions of the invention are polydimethyl siloxanes having hydroxyl end groups, which have the CTFA designation dimethiconol.
- The viscosity of the emulsified silicone itself (not the emulsion or the final hair conditioning composition) is preferably at least 10,000 cSt (25° C.). The viscosity of the silicone itself is preferably at least 60,000 cSt (25° C.), most preferably at least 500,000 cSt (25° C.), ideally at least 900,000 cSt (25° C.). Preferably the viscosity does not exceed 3M cSt (25° C.).
- Emulsified silicones for use the invention will typically have an average silicone particle size (D50) in the composition of less than 1000 nm, preferably less than 800 nm, more preferably less than 700 nm, ideally it ranges from 100 to 800 nm, more preferably from 150 nm to 600 nm.
- Suitable silicone emulsions for use in compositions of the invention are available from suppliers of silicones such as Dow Corning and GE Silicones. The use of such pre-formed silicone emulsions is preferred for ease of processing and control of silicone particle size. Such pre-formed silicone emulsions will typically additionally comprise a suitable emulsifier such as an anionic or nonionic emulsifier, or mixture thereof, and may be prepared by a chemical emulsification process such as emulsion polymerisation, or by mechanical emulsification using a high shear mixer.
- Examples of suitable pre-formed silicone emulsions include emulsions DC2-1766, DC-1785, DDC-1788, DC2-1865 and DC2-1870, all available from Dow Corning. These are all emulsions/microemulsions of dimethiconol. Preferred silicones are DC5-7051, particularly preferred are DC1788 and DC 1785.
- Mixtures of any of the above described silicone emulsions may also be used.
- The silicone level is preferably present at from 0.1 to 40% wt of the total composition, more preferably from 0.5 to 35% wt. especially from 1 to 30% wt. The level of silicone that can be deposited is dependent on the silicone used.
- Compositions for use with the invention suitably comprises a carrier. Preferably, this carrier is water.
- Preferably the levels of carrier in the total composition are above 60 wt % of the total composition, more preferably above 70 wt %, most preferably above 80 wt %.
- The viscosity of the final composition is preferably from 1 cSt to 8 cSt at 25° C. a more preferably from 2 cSt to 7.5 cSt (25° C.), most preferably they have a viscosity above 3.5M cSt (25° C.). When nebulising a silicone emulsion it is found that more silicone can be deposited at higher composition viscosities than if a solution of silicone is used.
- It is preferred if the products are left on hair after application and not immediately washed off (within 10 minutes of application). Such products are known as leave in compositions.
- The pH of the formulation is preferably from 2.5 to 6 at 25° C. More preferably from 3 to 5.
- Examples of suitable emulsifying agents include nonionic, cationic, anionic surfactants, or mixtures thereof. If such an emulsifying agent is used, it is preferably present at a level of from about 0.01% to about 7.5% by weight based on total weight of the composition.
- The invention will now be described with reference to the following non-limiting drawings in which:
-
FIG. 1 is a schematic section of a brush according to the invention, andFIGS. 2 a, b and c are plan views of a brush according to the invention. - In detail
FIG. 1 shows abrush head 1 connected to ahandle 2 which houses apower supply 3. Thehead 1 houses anebuliser 10 which consists of asupport 5 for agauze 7 and areservoir 6 containing a hair care composition. Thebrush head 1 also hasbristles 8 depending there from and anaperture 9 in thehead 1 for release of the nebulised hair care composition. -
FIG. 2 shows three embodiments of apertures according to the invention.FIG. 2 a shows abrush head 1 with anaperture 9 which runs centrally down the brush head and is surrounded on all sides bybristles 8. InFIG. 2 b there are three apertures spaced uniformly and perpendicular to the general longitudinal axis of the brush (not shown). InFIG. 2 c there are six apertures arranged in two lines of three diamond shaped apertures. - The following are non-limiting Examples according to the invention.
- Approximately 1 g of each aqueous emulsion was nebulised into a sealed container of known weight. The water was evaporated from the container and the amount of silicone nebulised was measured by re-weighing the container.
- The standard error of this experiment was calculated which is equivalent to the error in the deposited value which is 0.0014 g.
-
Mass Mass Viscosity before after Deposited Calculated Material cSt (g) (g) (g) (g) DC-7051 3.5-4.0 19.3836 19.4788 0.0952 0.0800 10% DC-1788 4.5-5.0 18.8922 19.0293 0.1371 0.1400 30% DC-1785 7.0-7.5 19.0158 19.2516 0.2358 0.2500 50% DC-1788 40 19.0000 0 0 100% DC1785 20 19.5400 0 0 100% - The results of this experiment express conclusively that there is no loss of silicone transport with emulsions of the invention.
- DC5-7051 (2 wt % in water) and DC200 350cSt in isododecane were applied using a nebuliser to dry hair. 2.5 g TA switches which were laid flat. An X-ray fluorescence sample was taken from the centre of the switch and the level of silicone measured.
-
Material DC5-7051 2% DC200 350 cSt 0.5% Expected (ppm) 700 1500 Delievered (ppm) 752 ±272 550 ±156 % of Expected 107% ±36 37% ±28 - The above data shows that DC5-7051 emulsion at 2% exhibits better deposition (relative to expected value) than a solution of 0.5% DC200 in Isododecane.
Claims (12)
1. Hair grooming device comprising a head, a nebuliser, a power supply therefore and a reservoir containing a composition to be applied to the hair during use by the nebuliser, the composition comprising an aqueous emulsified composition wherein the viscosity of the composition is from 1 cSt to 8 cSt at 25° C.
2. Devise according to claim 1 in which the emulsified composition comprises a benefit agent.
3. Device according to claim 2 in which the benefit agent is a silicone.
4. Device according to claim 3 in which the silicone has a viscosity below 3 McSt at 25° C.
5. Device according to claim 4 in which the total level of silicone within the composition is 0.5 to 35 wt % of the total composition.
6. Device according to claim 1 in which the head is a bristle or tooth-bearing.
7. Device according to claim 1 which is a brush.
8. Device according to claim 1 wherein the nebuliser comprises a gauze defined by a rigid ring, a reservoir for containing a composition to be nebulised and a circuit connected to the power supply.
9. Device according to claim 8 wherein the gauze is convex with regard to the reservoir.
10. Device according to claim 1 wherein the nebuliser is located within the head and the head also comprises an aperture for releasing the nebulised fluid during use on to the hair.
11. Device according to claim 1 comprising a handle which houses the power source.
12. A process for depositing a hair benefit agent onto the hair, the process comprising the following steps:
i) forming an emulsified composition according to claim 1 ; and
ii) nebulising the formulation using the apparatus described in claim 1 .
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP08166377.5 | 2008-10-10 | ||
EP08166377 | 2008-10-10 | ||
PCT/EP2009/059942 WO2010040578A2 (en) | 2008-10-10 | 2009-07-31 | Device and formulation |
Publications (1)
Publication Number | Publication Date |
---|---|
US20110192412A1 true US20110192412A1 (en) | 2011-08-11 |
Family
ID=40690330
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US13/122,977 Abandoned US20110192412A1 (en) | 2008-10-10 | 2009-07-31 | Device and formulation |
Country Status (7)
Country | Link |
---|---|
US (1) | US20110192412A1 (en) |
EP (1) | EP2331050A2 (en) |
JP (1) | JP2012504989A (en) |
CN (1) | CN102159174A (en) |
BR (1) | BRPI0912909A2 (en) |
MX (1) | MX2011003831A (en) |
WO (1) | WO2010040578A2 (en) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2574747A (en) * | 1946-09-11 | 1951-11-13 | Clara E Mcnutt | Spray device |
US3854489A (en) * | 1972-10-12 | 1974-12-17 | Schick Inc | Hair styling appliance |
US5690129A (en) * | 1994-07-28 | 1997-11-25 | Goldwell Gmbh | Treating hair with quaternized aminoalkyl dimethyl polysiloxane/polyethyl oxazoline |
US6000405A (en) * | 1998-03-24 | 1999-12-14 | L'oreal S.A. | Dispensing head for dispensing product from a reservoir |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5173290A (en) * | 1990-07-06 | 1992-12-22 | Dow Corning Corporation | Hair fixatives |
US5705562A (en) * | 1995-11-20 | 1998-01-06 | Dow Corning Corporation | Spontaneously formed clear silicone microemulsions |
US5965115A (en) * | 1997-11-05 | 1999-10-12 | The Procter & Gamble Company | Personal care compositions |
JP2005527548A (en) * | 2002-03-28 | 2005-09-15 | ザ プロクター アンド ギャンブル カンパニー | Particle stabilizing composition |
DE102005047858A1 (en) * | 2005-10-05 | 2007-04-12 | Henkel Kgaa | Two-component product for the treatment of keratinous fibers |
-
2009
- 2009-07-31 MX MX2011003831A patent/MX2011003831A/en not_active Application Discontinuation
- 2009-07-31 WO PCT/EP2009/059942 patent/WO2010040578A2/en active Application Filing
- 2009-07-31 JP JP2011530429A patent/JP2012504989A/en not_active Withdrawn
- 2009-07-31 EP EP09781350A patent/EP2331050A2/en not_active Withdrawn
- 2009-07-31 US US13/122,977 patent/US20110192412A1/en not_active Abandoned
- 2009-07-31 CN CN2009801362223A patent/CN102159174A/en active Pending
- 2009-07-31 BR BRPI0912909A patent/BRPI0912909A2/en not_active IP Right Cessation
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2574747A (en) * | 1946-09-11 | 1951-11-13 | Clara E Mcnutt | Spray device |
US3854489A (en) * | 1972-10-12 | 1974-12-17 | Schick Inc | Hair styling appliance |
US5690129A (en) * | 1994-07-28 | 1997-11-25 | Goldwell Gmbh | Treating hair with quaternized aminoalkyl dimethyl polysiloxane/polyethyl oxazoline |
US6000405A (en) * | 1998-03-24 | 1999-12-14 | L'oreal S.A. | Dispensing head for dispensing product from a reservoir |
Also Published As
Publication number | Publication date |
---|---|
EP2331050A2 (en) | 2011-06-15 |
MX2011003831A (en) | 2011-04-27 |
WO2010040578A2 (en) | 2010-04-15 |
JP2012504989A (en) | 2012-03-01 |
BRPI0912909A2 (en) | 2019-09-24 |
CN102159174A (en) | 2011-08-17 |
WO2010040578A3 (en) | 2010-09-23 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: CONOPCO, INC., D/B/A UNILEVER, NEW JERSEY Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:BELL, FRASER IAN;ZDRAVKOVA, ANELIYA NIKOLOVA;REEL/FRAME:026230/0760 Effective date: 20110303 |
|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |