CA2560405C - Spray head for attachment to an aerosol spray unit - Google Patents
Spray head for attachment to an aerosol spray unit Download PDFInfo
- Publication number
- CA2560405C CA2560405C CA2560405A CA2560405A CA2560405C CA 2560405 C CA2560405 C CA 2560405C CA 2560405 A CA2560405 A CA 2560405A CA 2560405 A CA2560405 A CA 2560405A CA 2560405 C CA2560405 C CA 2560405C
- Authority
- CA
- Canada
- Prior art keywords
- spray
- spray head
- outlet
- outlets
- product
- 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.)
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- 239000007921 spray Substances 0.000 title claims abstract description 104
- 239000000443 aerosol Substances 0.000 title claims abstract description 22
- 239000012530 fluid Substances 0.000 claims abstract description 9
- 238000004891 communication Methods 0.000 claims abstract description 6
- 239000000203 mixture Substances 0.000 claims description 15
- 230000001166 anti-perspirative effect Effects 0.000 claims description 12
- 239000003213 antiperspirant Substances 0.000 claims description 12
- 239000002537 cosmetic Substances 0.000 claims description 2
- 239000002781 deodorant agent Substances 0.000 claims description 2
- 239000004094 surface-active agent Substances 0.000 claims description 2
- 238000005507 spraying Methods 0.000 description 7
- 238000000889 atomisation Methods 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 230000008021 deposition Effects 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 239000003380 propellant Substances 0.000 description 3
- 239000013543 active substance Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 239000012876 carrier material Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 239000004922 lacquer Substances 0.000 description 1
- 210000003041 ligament Anatomy 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D83/00—Containers or packages with special means for dispensing contents
- B65D83/14—Containers or packages with special means for dispensing contents for delivery of liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant for a product delivered by a propellant
- B65D83/75—Aerosol containers not provided for in groups B65D83/16 - B65D83/74
- B65D83/753—Aerosol containers not provided for in groups B65D83/16 - B65D83/74 characterised by details or accessories associated with outlets
- B65D83/7532—Aerosol containers not provided for in groups B65D83/16 - B65D83/74 characterised by details or accessories associated with outlets comprising alternative flow directions or replaceable or interchangeable outlets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
- B05B1/14—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with multiple outlet openings; with strainers in or outside the outlet opening
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D83/00—Containers or packages with special means for dispensing contents
- B65D83/14—Containers or packages with special means for dispensing contents for delivery of liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant for a product delivered by a propellant
- B65D83/16—Containers or packages with special means for dispensing contents for delivery of liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant for a product delivered by a propellant characterised by the actuating means
- B65D83/20—Containers or packages with special means for dispensing contents for delivery of liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant for a product delivered by a propellant characterised by the actuating means operated by manual action, e.g. button-type actuator or actuator caps
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
- B05B1/02—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to produce a jet, spray, or other discharge of particular shape or nature, e.g. in single drops, or having an outlet of particular shape
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
- B05B11/0005—Components or details
Abstract
A spray head (1) for attachment to an aerosol container containing pressurised product is provided, the spray head comprising conduit means, more than one separate spray outlet (3) and a splitting chamber for diverting the flow to the spray outlets, wherein the conduit means comprise inlet means (5) for attachment to a valve stem of the aerosol spray unit and conduit outlet means which are in direct fluid communication with the splitting chamber (4), wherein the splitting chamber is in fluid communication with the spray outlets (3) and wherein, for each spray outlet, the ratio, L1/L2, of the distance (L1) between the conduit outlet means and the spray outlet to the distance (L2) between the inlet means and the spray outlet is in the range 0.01 to 0.6.
Description
SPRAY HEAD FOR ATTACHMENT TO AN AEROSOL SPRAY UNIT
FIELD
The present invention relates to an aerosol spray head, an aerosol spray unit comprising the aerosol spray head and a process for spraying pressurised product.
BACKGROUND
One conventional approach to dispensing a product onto a target application surface is via atomisation of that product. One way of achieving atomisation is to combine the product with a propellant (compressed gas) in a pressurized unit having a dispensing valve fluidly connected to a dispensing outlet. On opening the dispensing valve, the product is forced thereduough and dispensed via the outlet in an atomized form onto the target application surface.
The present inventors have established, however, that current atomization technology generally does not deliver a satisfactory product distribution onto the target area. In particular, the distribution is observed to be uneven, with, for example, increased deposition occurring in the centre and correspondingly reduced deposition towards the extremities of the target site. In addition to the uneven spread of active agent and resulting uneven achievement of benefit across the target site, increased deposition in one area, for example the centre, may additionally result in the formation of unsightly residues and unpleasant cooling in that region of the consumer's skin, due to the increased amounts of product deposited there and increased amounts propellant evaporating at that location.
In addition to the above-mentioned shortcomings, a single outlet spray head also places physical limitations on the composition which may be sprayed. In particular, high viscosity compositions may not be practically sprayed, because insufficient energy may be retained in such a fluid under typical pressurisation conditions for it to become sufficiently atomised on leaving the spray outlet.
With reference to US 3,767,125, a multi-outlet spray head is proposed for spraying dry powder aerosols.
With reference to US 5,516,045, an alternative multi-outlet spray head is disclosed, especially for spraying hair lacquer.
It would be advantageous to provide a spray head which overcomes the disadvantages of spray heads disclosed in the prior art.
FIELD
The present invention relates to an aerosol spray head, an aerosol spray unit comprising the aerosol spray head and a process for spraying pressurised product.
BACKGROUND
One conventional approach to dispensing a product onto a target application surface is via atomisation of that product. One way of achieving atomisation is to combine the product with a propellant (compressed gas) in a pressurized unit having a dispensing valve fluidly connected to a dispensing outlet. On opening the dispensing valve, the product is forced thereduough and dispensed via the outlet in an atomized form onto the target application surface.
The present inventors have established, however, that current atomization technology generally does not deliver a satisfactory product distribution onto the target area. In particular, the distribution is observed to be uneven, with, for example, increased deposition occurring in the centre and correspondingly reduced deposition towards the extremities of the target site. In addition to the uneven spread of active agent and resulting uneven achievement of benefit across the target site, increased deposition in one area, for example the centre, may additionally result in the formation of unsightly residues and unpleasant cooling in that region of the consumer's skin, due to the increased amounts of product deposited there and increased amounts propellant evaporating at that location.
In addition to the above-mentioned shortcomings, a single outlet spray head also places physical limitations on the composition which may be sprayed. In particular, high viscosity compositions may not be practically sprayed, because insufficient energy may be retained in such a fluid under typical pressurisation conditions for it to become sufficiently atomised on leaving the spray outlet.
With reference to US 3,767,125, a multi-outlet spray head is proposed for spraying dry powder aerosols.
With reference to US 5,516,045, an alternative multi-outlet spray head is disclosed, especially for spraying hair lacquer.
It would be advantageous to provide a spray head which overcomes the disadvantages of spray heads disclosed in the prior art.
Summary According to a first aspect of the invention a spray head for attachment to an aerosol container containing pressurised product is provided, the spray head comprising conduit means, more than one separate spray outlet and a splitting chamber (4) for diverting the flow to the spray outlets, wherein the conduit means (2) comprise inlet means for attachment to a valve stem of the aerosol spray unit and conduit outlet means which are in direct fluid communication with the splitting chamber, wherein the splitting chamber is in fluid communication with the spray outlets and wherein, for each spray outlet, the ratio, Ll/L2, of the distance (Li) between the conduit outlet means and the spray outlet to the distance (L2) between the inlet means and the spray outlet is from 0.01 to 0.6.
According to a second aspect of the invention, an pressurised aerosol spray unit is provided, having a spray head as defined in the first aspect of the invention.
According to a third aspect of the invention, a portable pressurised aerosol spray unit is provided, having a spray head as defined in the first aspect of the invention.
According to a fourth aspect of the invention, a process for spraying a pressurised product is provided, comprising the steps of spraying said product through a spray head according to the first aspect of the invention, such that the product has a Reynolds Number of at least 1000 as it leaves said spray outlets.
These and other features, aspects, and advantages of the present invention will become evident to those skilled in the art from a reading of the present disclosure.
BRIEF DESCRIPTION OF THE DRAWINGS
While the specification concludes with claims which particularly point out and distinctly claim the invention, it is believed the present invention will be better understood from the following description of preferred embodiments taken in conjunction with the accompanying drawings, in which like reference numerals identify identical elements and in which:
Fig. 1 is a cross-sectional view of a spray head according to the invention Fig. 2 is an enlarged cross-sectional view of the important parts of a spray head according to the invention.
DETAILED DESCRIPTION
According to a second aspect of the invention, an pressurised aerosol spray unit is provided, having a spray head as defined in the first aspect of the invention.
According to a third aspect of the invention, a portable pressurised aerosol spray unit is provided, having a spray head as defined in the first aspect of the invention.
According to a fourth aspect of the invention, a process for spraying a pressurised product is provided, comprising the steps of spraying said product through a spray head according to the first aspect of the invention, such that the product has a Reynolds Number of at least 1000 as it leaves said spray outlets.
These and other features, aspects, and advantages of the present invention will become evident to those skilled in the art from a reading of the present disclosure.
BRIEF DESCRIPTION OF THE DRAWINGS
While the specification concludes with claims which particularly point out and distinctly claim the invention, it is believed the present invention will be better understood from the following description of preferred embodiments taken in conjunction with the accompanying drawings, in which like reference numerals identify identical elements and in which:
Fig. 1 is a cross-sectional view of a spray head according to the invention Fig. 2 is an enlarged cross-sectional view of the important parts of a spray head according to the invention.
DETAILED DESCRIPTION
While the specification concludes with claims which particularly point out and distinctly claim the invention, it is believed the present invention will be better understood from the following description.
All weights, measurements and concentrations herein are measured at 250C on the composition in its entirety, unless otherwise specified.
Unless otherwise indicated, all percentages of compositions referred to herein are weight percentages of the total composition (i.e. the sum of all components present) and all ratios are weight ratios.
As has been discussed, a limitation of traditional aerosol spray head configurations is that they may produce an uneven distribution of product on the target site. In addition, the viscosity of the product to be sprayed may be practically constrained to remain below a certain level.
By introducing instability into the fluid flow at an early stage it is possible to atomize products with greater viscosities and, at the same time, improve the product distribution on the target site. The replacement of a single spray outlet by multiple outlets may assist in introducing that instability, because, for a given volume flow of product, the size of the shear interface (i.e. the total outlet perimeter size) is greater for multiple outlets than for a single outlet. Without wishing to be bound by theory, it is believed that this measure may prevent the formation of a smooth film structure just outside the outlet where the product commences its trajectory to the target site. The disadvantage of a smooth film structure is that it may propagate a relatively coarse atomization in the final stage before the product reaches the target site, with the drops at the center of the spray being larger than those near the periphery. It is in the final stage of the spray formation where an instability in the system may help disintegrate the product into ligaments and then further into drops to form a highly atomised spray and an improved drop distribution.
All weights, measurements and concentrations herein are measured at 250C on the composition in its entirety, unless otherwise specified.
Unless otherwise indicated, all percentages of compositions referred to herein are weight percentages of the total composition (i.e. the sum of all components present) and all ratios are weight ratios.
As has been discussed, a limitation of traditional aerosol spray head configurations is that they may produce an uneven distribution of product on the target site. In addition, the viscosity of the product to be sprayed may be practically constrained to remain below a certain level.
By introducing instability into the fluid flow at an early stage it is possible to atomize products with greater viscosities and, at the same time, improve the product distribution on the target site. The replacement of a single spray outlet by multiple outlets may assist in introducing that instability, because, for a given volume flow of product, the size of the shear interface (i.e. the total outlet perimeter size) is greater for multiple outlets than for a single outlet. Without wishing to be bound by theory, it is believed that this measure may prevent the formation of a smooth film structure just outside the outlet where the product commences its trajectory to the target site. The disadvantage of a smooth film structure is that it may propagate a relatively coarse atomization in the final stage before the product reaches the target site, with the drops at the center of the spray being larger than those near the periphery. It is in the final stage of the spray formation where an instability in the system may help disintegrate the product into ligaments and then further into drops to form a highly atomised spray and an improved drop distribution.
In addition, in a multi-outlet system, it is observed that, following the split in the flow to channel fluid to the separate orifices, changes to the separate flows may occur such that there may be differences, for example, in viscosity or other parameters, between what is sprayed from one outlet and what is sprayed from the other or others.
If there are differences between the individual sprays immediately after they leave their respective spray outlets, then that may translate into differences in product distribution at the target site. Without wishing to be bound by theory, it is believed that these changes may be brought about by manufacturing limitations. In other words, it is very difficult to ensure that the ducts along which the separate flows travel are identical. To counter this, it has been found to be beneficial to locate the point at which the flow splits to travel to the two or more separate spray outlets close to the spray outlets such that most of the flow within the spray head occurs prior to the split. To be more specific and as set out above, it has been found that it is beneficial to design the spray head (1) such that the ratio, L 1/L2, for each spray outlet (3), of the distance (L1) between the conduit outlet means and the spray outlet (3) to the distance between the inlet means (5) and the spray outlet (3) is from 0.01 to 0.6, preferably from 0.015 to 0.4 and more preferably from 0.02 to 0.4.
In the event that the conduit and/or ducts leading to the spray outlets have a non-constant cross-sectional area such that either or both of Li and L2 may vary depending on the line of measurement, then the measurements must be made along the centre line connecting the centres of the inlet means (5), the conduit outlet means and the respective spray outlet (3).
In one preferred embodiment, at least one of the spray outlets has a ratio Li/L2 which is different from the other or others. In another preferred embodiment, all the spray outlets have the same ratio Li/L2.
Advantageously, at least one of the spray outlets and preferably all of the spray outlets are non-circular. Employing non-circular spray outlets may additionally assist in introducing early instability into the flow, thereby improving distribution at the target site.
As used herein, the term "circle" means a closed plane curve every point of which is equidistant from a fixed point within the curve and the word "circular"
shall be interpreted accordingly.
If there are differences between the individual sprays immediately after they leave their respective spray outlets, then that may translate into differences in product distribution at the target site. Without wishing to be bound by theory, it is believed that these changes may be brought about by manufacturing limitations. In other words, it is very difficult to ensure that the ducts along which the separate flows travel are identical. To counter this, it has been found to be beneficial to locate the point at which the flow splits to travel to the two or more separate spray outlets close to the spray outlets such that most of the flow within the spray head occurs prior to the split. To be more specific and as set out above, it has been found that it is beneficial to design the spray head (1) such that the ratio, L 1/L2, for each spray outlet (3), of the distance (L1) between the conduit outlet means and the spray outlet (3) to the distance between the inlet means (5) and the spray outlet (3) is from 0.01 to 0.6, preferably from 0.015 to 0.4 and more preferably from 0.02 to 0.4.
In the event that the conduit and/or ducts leading to the spray outlets have a non-constant cross-sectional area such that either or both of Li and L2 may vary depending on the line of measurement, then the measurements must be made along the centre line connecting the centres of the inlet means (5), the conduit outlet means and the respective spray outlet (3).
In one preferred embodiment, at least one of the spray outlets has a ratio Li/L2 which is different from the other or others. In another preferred embodiment, all the spray outlets have the same ratio Li/L2.
Advantageously, at least one of the spray outlets and preferably all of the spray outlets are non-circular. Employing non-circular spray outlets may additionally assist in introducing early instability into the flow, thereby improving distribution at the target site.
As used herein, the term "circle" means a closed plane curve every point of which is equidistant from a fixed point within the curve and the word "circular"
shall be interpreted accordingly.
The spray outlets (3) may have any non-circular shape, but advantageously have a cross-sectional shape selected from the group consisting of polygonal, semi-circular, crescent, stellate and mixtures thereof. If polygonal, then each polygonal cross-sectional shape may advantageously be selected from the group consisting of polygons having from three to ten sides. Preferably, the polygons are selected from the group consisting of triangular, rectangular, pentagonal, hexagonal and mixtures thereof.
The spray head (1) according to the invention may have any number of spray outlets (3) above two, but preferably has from 2 to 36 and more preferably from 3 to 12 spray outlets (3).
According to a second aspect of the invention, an aerosol spray unit (10) is provided comprising a pressurised product to be dispensed and having a spray head (1) according to the first aspect of the invention.
As used herein, the term "spray unit" means a pressurised aerosol canister, comprising a valve, the valve stem (11) of which extends from the canister, typically at the top. Such canisters typically have a volume up to 1000m1, though more typically below 200m1 and are typically pressurised at 103kPa to 552 kPa (15 to 80psi), more typically less than 414 kPa (60psi).
As used herein, the term "product" means all components of the composition or mixture contained within the spray unit, including all active agents, all carrier materials and all propellant.
Preferably, the product to be dispensed is a cosmetic product, more preferably it is selected from the group consisting of antiperspirants, deodorants and mixtures thereof.
If the product to be dispensed is an antiperspirant, then it may comprise antiperspirant active particulates and a carrier such that the antiperspirant active particulates are not soluble in the carrier. Alternatively, the antiperspirant active may be solubilised in the carrier.
According to a third aspect of the invention, a portable aerosol spray unit (10) is provided comprising a pressurised product to be dispensed and a spray head (1) according to the first aspect of the invention..
As used herein, the term "portable" used in relation to an aerosol spray unit means that it may readily be transported in one hand by a single adult person of ordinary strength.
The spray head (1) according to the invention may have any number of spray outlets (3) above two, but preferably has from 2 to 36 and more preferably from 3 to 12 spray outlets (3).
According to a second aspect of the invention, an aerosol spray unit (10) is provided comprising a pressurised product to be dispensed and having a spray head (1) according to the first aspect of the invention.
As used herein, the term "spray unit" means a pressurised aerosol canister, comprising a valve, the valve stem (11) of which extends from the canister, typically at the top. Such canisters typically have a volume up to 1000m1, though more typically below 200m1 and are typically pressurised at 103kPa to 552 kPa (15 to 80psi), more typically less than 414 kPa (60psi).
As used herein, the term "product" means all components of the composition or mixture contained within the spray unit, including all active agents, all carrier materials and all propellant.
Preferably, the product to be dispensed is a cosmetic product, more preferably it is selected from the group consisting of antiperspirants, deodorants and mixtures thereof.
If the product to be dispensed is an antiperspirant, then it may comprise antiperspirant active particulates and a carrier such that the antiperspirant active particulates are not soluble in the carrier. Alternatively, the antiperspirant active may be solubilised in the carrier.
According to a third aspect of the invention, a portable aerosol spray unit (10) is provided comprising a pressurised product to be dispensed and a spray head (1) according to the first aspect of the invention..
As used herein, the term "portable" used in relation to an aerosol spray unit means that it may readily be transported in one hand by a single adult person of ordinary strength.
According to a fourth aspect of the invention, a process for spraying a pressurised product is provided comprising the steps of spraying said product through a spray head having at least two separate spray outlets (3), wherein at least one of the spray outlets (3) has a non-circular cross-section, such that the product has a Reynolds Number of at least 3000 as it leaves said spray outlets (3).
It is understood that the examples and embodiments described herein are for illustrative purposes only and that various modifications or changes in light thereof will be suggested to one skilled in the art without departing from the scope of the present invention.
The citation of all documents is, in relevant part, not to be construed as an admission that it is prior art with respect to the present invention. To the extent that any meaning or definition of a term in this written document conflicts with any meaning or definition of the term in a cited document, the meaning or definition assigned to the term in this written document shall govern While particular embodiments of the present invention have been illustrated and described, it would be obvious to those skilled in the art that various other changes and modifications can be made without departing from the spirit and scope of the invention.
It is therefore intended to cover in the appended claims all such changes and modifications that are within the scope of this invention.
It is understood that the examples and embodiments described herein are for illustrative purposes only and that various modifications or changes in light thereof will be suggested to one skilled in the art without departing from the scope of the present invention.
The citation of all documents is, in relevant part, not to be construed as an admission that it is prior art with respect to the present invention. To the extent that any meaning or definition of a term in this written document conflicts with any meaning or definition of the term in a cited document, the meaning or definition assigned to the term in this written document shall govern While particular embodiments of the present invention have been illustrated and described, it would be obvious to those skilled in the art that various other changes and modifications can be made without departing from the spirit and scope of the invention.
It is therefore intended to cover in the appended claims all such changes and modifications that are within the scope of this invention.
Claims (16)
1. A spray head for attachment to an aerosol spray unit containing a pressurised product, the spray head comprising conduit means, more than one separate spray outlet for atomising the pressurised product and a splitting point for diverting a flow of the pressurised product to the spray outlets wherein the conduit means comprises inlet means for attachment to a valve stem of the aerosol spray unit and conduit outlet means which is in direct fluid communication with the splitting point wherein the splitting point is in fluid communication with the spray outlets and wherein, for each spray outlet, a ratio, L1/L2, wherein L1 is a distance between the conduit outlet means and the spray outlet and L2 is a distance between the inlet means and the spray outlet, is from 0.015 to 0.4.
2. The spray head of claim 1 wherein at least one of the spray outlets has a ratio L1/L2 which is different from the other or others.
3. The spray head of claim 1 wherein all the spray outlets have the same ratio L1/L2.
4. The spray head of any one of claims 1 to 3 wherein at least one of the spray outlets has a non-circular cross-section.
5. The spray head of any one of claims 1 to 4 wherein all the spray outlets have a non-circular cross-sectional shape.
6. The spray head of any one of claims 1 to 5 wherein one or more of the spray outlets have a cross-sectional shape selected from the group consisting of polygonal, semi-circular, crescent, stellate and mixtures thereof.
7. The spray head of claim 6 wherein each polygonal cross-sectional shape is selected from the group consisting of polygons having from three to ten sides.
8. The spray head of claim 7 wherein each polygonal cross-sectional shape is selected from the group consisting of triangular, rectangular, pentagonal, hexagonal and mixtures thereof.
9. The spray head of any one of claims 1 to 8 having from 2 to 36 outlets.
10. The aerosol spray unit comprising the pressurised product to be dispensed and having the spray head of any one of claims 1 to 9.
11. The aerosol spray unit of claim 10, wherein the aerosol spray unit is a portable spray unit.
12. A use of a spray head of any one of claims 1 to 9 for atomising a pressurised product.
13. The use of claim 12, wherein the pressurised product is a cosmetic product.
14. The use of any one of claims 12 to 13, wherein the pressurised product is selected from the group consisting of antiperspirants, deodorants and mixtures thereof.
15. The use of claim 12, wherein the pressurised product is an antiperspirant composition comprising antiperspirant active particulates and a carrier, wherein the antiperspirant active particulates are not soluble in the carrier.
16. The use of claim 12, wherein the pressurised product is an antiperspirant composition comprising an antiperspirant active and a carrier, wherein the antiperspirant active is solubilised in the carrier.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US55733504P | 2004-03-29 | 2004-03-29 | |
| US60/557,335 | 2004-03-29 | ||
| PCT/US2005/010459 WO2005095000A2 (en) | 2004-03-29 | 2005-03-28 | Aerosol |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2560405A1 CA2560405A1 (en) | 2005-10-13 |
| CA2560405C true CA2560405C (en) | 2013-05-07 |
Family
ID=34963936
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2560405A Active CA2560405C (en) | 2004-03-29 | 2005-03-28 | Spray head for attachment to an aerosol spray unit |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP1732698A2 (en) |
| CN (1) | CN1933912A (en) |
| CA (1) | CA2560405C (en) |
| WO (1) | WO2005095000A2 (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| USD648216S1 (en) | 2010-01-14 | 2011-11-08 | S.C. Johnson & Son, Inc. | Actuator nozzle for a diffusion device |
| USD657242S1 (en) | 2010-01-14 | 2012-04-10 | S.C. Johnson & Son, Inc. | Container with nozzle |
| US8322630B2 (en) * | 2010-05-10 | 2012-12-04 | The Procter & Gamble Company | Trigger pump sprayer |
| US8255089B2 (en) | 2010-05-28 | 2012-08-28 | S.C. Johnson & Son, Inc. | Multiple volatile material dispensing device and operating methodologies therefore |
| FR3007952B1 (en) * | 2013-07-04 | 2015-07-24 | Oreal | AEROSOL CONTAINING AN EMULSION DEODORANT EQUIPPED WITH A HOLLOW DISTRIBUTION HEAD |
| FR3007953B1 (en) | 2013-07-04 | 2015-07-24 | Oreal | AEROSOL ALCOHOLIC DEODORANT EQUIPPED WITH A HOLLOW DISTRIBUTION HEAD |
| US10737287B2 (en) | 2014-01-21 | 2020-08-11 | Illinois Tool Works Inc. | Fluid application device having a modular contact nozzle with a fluidic oscillator |
| US9718084B2 (en) * | 2014-01-21 | 2017-08-01 | Illinois Tool Works Inc. | Fluid application device having a modular contact nozzle with a fluidic oscillator |
| CN104709605A (en) * | 2015-01-26 | 2015-06-17 | 中山市美捷时包装制品有限公司 | Large particle female valve |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3504862A (en) * | 1968-01-05 | 1970-04-07 | Gillette Co | Dispensing device |
| US3767125A (en) * | 1971-05-28 | 1973-10-23 | Union Carbide Corp | Multiple orifice aerosol actuator |
| US4239407A (en) * | 1979-02-22 | 1980-12-16 | Knight Hester L | Hard to reach places spray can |
| DE2925435A1 (en) * | 1979-06-23 | 1981-01-22 | Hans Ing Grad Grothoff | Spray head for pressurised liq. has opening for insert - with outer axial grooves forming nozzle ducts with wall of opening |
| IT8112656A0 (en) * | 1981-10-21 | 1981-10-21 | Orlando Morchio | SPRAYING COMB WITH THE PURPOSE OF SPRAYING ANY SUBSTANCE |
| FR2691383B1 (en) * | 1992-05-21 | 1994-08-19 | Oreal | Push button intended to be mounted on a valve or a pump fitted to a dispenser, and dispenser comprising such a push button. |
| FR2744104B1 (en) * | 1996-01-29 | 1998-03-20 | Oreal | DEVICE FOR PACKAGING, DISPENSING AND APPLYING A GEL OR FOAM |
-
2005
- 2005-03-28 CA CA2560405A patent/CA2560405C/en active Active
- 2005-03-28 WO PCT/US2005/010459 patent/WO2005095000A2/en not_active Application Discontinuation
- 2005-03-28 EP EP05729960A patent/EP1732698A2/en not_active Withdrawn
- 2005-03-28 CN CNA2005800090401A patent/CN1933912A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| WO2005095000A3 (en) | 2006-01-12 |
| WO2005095000A2 (en) | 2005-10-13 |
| CN1933912A (en) | 2007-03-21 |
| CA2560405A1 (en) | 2005-10-13 |
| EP1732698A2 (en) | 2006-12-20 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request |