EP0518723B1 - Method and device for dispensing a viscous gel - Google Patents
Method and device for dispensing a viscous gel Download PDFInfo
- Publication number
- EP0518723B1 EP0518723B1 EP19920401488 EP92401488A EP0518723B1 EP 0518723 B1 EP0518723 B1 EP 0518723B1 EP 19920401488 EP19920401488 EP 19920401488 EP 92401488 A EP92401488 A EP 92401488A EP 0518723 B1 EP0518723 B1 EP 0518723B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- gel
- gas
- valve
- conduit
- channel
- 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.)
- Expired - Lifetime
Links
- 238000000034 method Methods 0.000 title claims description 13
- 239000003380 propellant Substances 0.000 claims description 13
- 239000000463 material Substances 0.000 claims description 4
- 239000000499 gel Substances 0.000 description 74
- 238000009826 distribution Methods 0.000 description 19
- 238000005507 spraying Methods 0.000 description 4
- 238000003825 pressing Methods 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- 239000000443 aerosol Substances 0.000 description 2
- 239000011324 bead Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000001273 butane Substances 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 210000001520 comb Anatomy 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- IJDNQMDRQITEOD-UHFFFAOYSA-N n-butane Chemical compound CCCC IJDNQMDRQITEOD-UHFFFAOYSA-N 0.000 description 1
- OFBQJSOFQDEBGM-UHFFFAOYSA-N n-pentane Natural products CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
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- 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
- B65D83/60—Contents and propellant separated
- B65D83/62—Contents and propellant separated by membrane, bag, or the like
-
- 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
- B65D83/60—Contents and propellant separated
- B65D83/66—Contents and propellant separated first separated, but finally mixed, e.g. in a dispensing head
-
- 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
- B65D83/752—Aerosol containers not provided for in groups B65D83/16 - B65D83/74 characterised by the use of specific products or propellants
Definitions
- the present invention relates to a method of dispensing a viscous gel according to the preamble of claim 1 and a device for carrying out the method according to the preamble of claim 5.
- the present invention applies in particular to the distribution over the hair of a styling gel intended to model the hairstyle.
- These gels are generally sold in jars and the user applies the gel to the hair with their hands. For reasons of cleanliness and hygiene, we seek to obtain a localized application of the product on the hair, without the intermediary of the hands.
- Pressure spraying devices using a pressurized gas of the "aerosol container” type are, in known manner, devices consisting of a container in which the product to be dispensed and a propellant gas are contained.
- the container is provided with a valve generally comprising an emerging rod on which one presses for actuate the valve, a push button to press the emerging rod.
- the push button generally contains a channel which communicates with the emerging rod and which opens towards the outside, to ensure the distribution of the product.
- DE-A 2 205 261 describes a method for dispensing a gel corresponding to the preamble of claim 1, as well as a spraying device corresponding to the preamble of claim 5 comprising two separate containers, the internal container being deformable and containing the product to be dispensed and the outer container being rigid; the propellant is disposed between the inner container and the outer container; a pipe makes it possible to introduce a quantity of propellant gas into the distribution channel of the product to be distributed.
- these containers have hitherto been used for spraying slightly viscous products.
- the object of the present invention is a method which makes it possible to dispense a product having a high viscosity of between 20 and 80 poises (between 2 and 8 pascals.seconds) without the intermediary of the hand as an applicator.
- this object is achieved by separately storing the gel and a gas immiscible with the gel, by forming in a channel opening through a restricted opening, a gel stream and by introducing into said gel stream, a current of gas immiscible with the gel so as to form gas bubbles separating drops of gel, the drops of gel being ejected under the pressure of the gas through the small opening of the channel.
- One thus projects, for example on the hair, relatively large separate drops of gel at a relatively low rate. Under these conditions, by moving the dispensing device, the highly viscous gel can be distributed over the hair, without having to use the hands.
- the hairstyle is then modeled in a known manner with a comb or a brush.
- the present invention therefore relates to a method of dispensing a gel using a gas, in which the gel and a gas are stored in two separate enclosures and, during dispensing, is sent under pressure the gel in a distribution channel and a gas is injected into the gel stream, characterized in that the gel has a viscosity between 2 and 8 pascals.second, that the gas is a gas immiscible with the gel , that, during distribution, the gel is sent under pressure to a distribution channel ending in a ejection orifice of restricted section, which the non-miscible gas is injected under pressure into the gel stream at a determined point of the channel, so as to form gas bubbles in the gel stream and that ejects the gel drops separated by gas bubbles obtained in the channel through the restricted section ejection orifice of said channel.
- the gel and the distribution gas being separated during storage, there can be mixing only at the time of distribution.
- the contact time between the gel and the gas being short and the gas not being miscible with the gel, there is therefore formation of gas bubbles which separate drops of gel.
- the drops of gel are ejected through the ejection orifice of restricted section, gain speed and are projected, on the hair for example.
- gel-immiscible gas By gel-immiscible gas is meant a gas which does not dissolve instantly in the gel. It is obvious that if the gas remained in contact with the gel during storage, the gas would at least partially dissolve in the gel.
- the immiscible gas can be a compressed gas, for example compressed air or a liquid gas at ordinary temperature, such as butane or a chlorofluorinated hydrocarbon for example.
- distribution channel is meant all of the elements delimiting the path of the gel current from its exit from the enclosure containing it to the restricted section ejection orifice of the channel.
- the diameter of the ejection orifice is generally between 0.5 mm and 2 mm, preferably close to 1 mm; for a channel whose restricted end portion has a diameter close to 1 mm, gel drops are thus generally obtained having a diameter of 2 to 5 mm at a rate of 5 to 10 drops per second.
- the gel is sent into the distribution channel using a propellant.
- the propellant gas and the immiscible gas are preferably one and the same gas.
- the gel is then contained in a flexible pouch, itself contained in a container filled with pressurized gas, part of the pressurized gas contained in the container being withdrawn during dispensing to be injected into the gel stream in a point of the distribution channel located before the restricted opening.
- the gas then has two functions: propelling the gel out of the flexible bag and forming bubbles in the gel stream to allow the ejection of gel drops from the channel.
- the present invention also relates to a device for implementing the method according to the invention consisting of a pressurized container provided with a valve cup on which a valve is crimped so that the fixed valve body is disposed in the container and the valve stem emerges, the valve being actuated by a push button provided with a movable part, cooperating with the valve stem, on which one presses to push the valve stem into the valve body, the channel of distribution being constituted by the various elements allowing the passage of the gel between its outlet from the container and the ejection orifice and in which is formed a conduit for the passage of the gel to be dispensed leaving the valve stem towards the gel ejection orifice, a bag of flexible material containing the gel to be dispensed is fixed on the valve body, and a gas being placed in the container around the bag made of flexible material, a pipe makes it possible to introduce the gas at any point of the distribution channel, characterized by the fact that the gel has a viscosity between 2 and 8 pascals.second, that
- the pipe for introducing the pressurized gas opens in the valve body.
- the seal is then preferably fixed on the non-emerging part of the valve stem, the seal moving with the valve stem to open the gas introduction pipe.
- the pipe for introducing the pressurized gas opens into the pipe provided in the push button.
- the introduction pipe is integral with the push button and slides in an opening in the va ve cup, the seal closing the pipe being disposed under the valve cup.
- the gel dispensing device is designated as a whole by the number 1. It consists of a container 2 closed by a valve cup 21 set by a bead 22 on the upper edge of the container (in the position shown in Figure 1). On the valve cup 21, a valve 3 is crimped which is actuated by a push button 4.
- a deformable pocket 5 which contains the styling gel G to be dispensed. Outside the pocket 5, a propellant gas P is arranged.
- the valve is constituted by a fixed valve body 31 and by a movable rod 32, sliding in the valve body 31.
- an opening 34 is formed which connects the bag 5 and the body valve 31 and allows the passage of the gel G in the valve body 31.
- the side walls 35 of the valve body 31 widen slightly outward.
- the valve body is in contact with an annular seal 36 held in place by a crimp 23 forming part of the valve cup 21.
- the valve stem 32 has two portions which do not communicate directly with each other: a tubular portion 32 a cylindrical opening towards the outside, provided in the vicinity of the bottom, with an opening 33 and a cylindrical portion 32 b more large outside diameter essentially contained in the valve body 31, provided with a conical recess 37.
- An opening 38 perpendicular to the axis of the valve is formed through the wall of the cylindrical portion 32 b.
- a spring 39 is disposed between the lower part of the cylindrical part and the bottom of the valve body 31.
- the pipe 6 for introducing the gas into the channel consists of an opening pierced in the side wall 35 of the valve body 31 above the attachment of the pocket 5 on the body 31. This pipe 6 is in the position of rest, closed by an O-ring 7, disposed around the outer wall of the valve stem 32.
- a conduit 41 is bent at a right angle.
- the part of the duct 41 a parallel to the axis of the valve, ends in a cylindrical-conical widening 42 in which the upper part 32 a of the rod 32 can be inserted in a sealed manner and inside the part 41 b perpendicular to the axis of the valve is fixed, by fitting, a tubular part 43 which ends in a restricted internal opening 44 with a diameter less than the internal diameter of the tubular part 43.
- the device operates as described below: when the user wishes to distribute the gel over his hair, for example, he aims at the chosen point of the hair with the element 43. He presses on the upper face of the push button 4 , who in turn supported on the emerging part 32 a of the valve stem. The rod sinks into the valve body 31, compressing the spring 39.
- the opening 33 emerges from the seal 36 and the gel can come out of the pocket, under the pressure exerted by the gas contained in the container 2, by the product passage channel, that is to say through the opening 34 inside the valve body 31 and then in the recess 37; the gel then passes through the opening 38 in the annular space between the valve body and the valve stem, then through the opening 33 in the emerging part 32 a of the valve stem and from there into the conduit 41 provided in the push button and in the element 43.
- the seal 7 attached to the portion 32 b of the valve stem is lowered and releases the pipe 6 for introducing the propellant (see Figure 3).
- Gas bubbles are formed in the gel stream in the channel, gas bubbles which separate drops of gel.
- the drops are accelerated and ejected by the pressurized gas.
- the user applies drops of gel to the hair at a low rate. To distribute the gel, it suffices to move the device according to the invention.
- the second embodiment is illustrated in Figures 4 and 5.
- the device is designated as a whole by 101. It consists of a container 102 closed on its upper edge by a valve cup 121, crimped by a bead 122. On the valve cup is crimped a valve 103 comprising a fixed valve body 131 and a movable rod 132, of which a tubular part 132 a is emerging.
- a push button 104 is fixed.
- a deformable pocket 105 is disposed which is welded to the valve body 131, the deformable pocket containing the gel G.
- the propellant gas is disposed in the container 102 around the deformable pocket 105.
- the valve 103 consists of a valve body 131 fixed by a crimping 123 on the valve cup 121, a seal 136 being disposed between the dome of the valve cup and the valve body 131. At the bottom of the valve body an opening 134 is made for the gel to pass from the container into the valve.
- the valve stem 132 has two parts separated by a partition; the part 132 a is a cylindrical tubular part opening towards the outside and provided in the vicinity of the partition with a radial opening 133 which, in the rest position of the valve 103, is located at the joint 136.
- a spring booster 139 is disposed between the bottom of the valve body and the bottom portion 132 b of the stem 132 of valve.
- the push button 104 is provided with an internal conduit comprising two parts arranged at right angles.
- Part 141a is parallel to the axis of the valve and terminates in a bore 142 wherein the cylindro-conical upper part of the rod 132 may be inserted.
- Part 141 b is perpendicular to the valve axis; in this part, a tubular element 143 is fitted by force, provided with a restricted section ejection orifice 144.
- the gas injection pipe 10O is a pipe comprising two parts at right angles; the part 106 a is perpendicular to the valve axis and opens into the gel distribution channel, at the end of part 141 b of the conduit 141, in the axis of said part 141 b .
- the portion 106 b is parallel to the valve axis and is inserted by a thinned end in an opening 124 of the cup 121 of valve.
- the thinned end has a sufficient length so that the part 106 b can slide in the opening 124 when the push button 10O is pressed.
- An annular seal 107 is disposed around the valve body between the internal face of the valve cup 121 and an annular flange 138 fixed on the external wall of the valve body 131. In the rest position, this seal 10 7 closes the inlet of the pipe 106 which is located radially outward relative to the flange 138.
- the device 101 operates as described below.
- the user wishes to dispense the gel, he presses the upper face of the push-button 104 and pushes the valve stem 132 which compresses the spring 139.
- the opening 133 is released from the seal 136.
- the gel passes through the opening 134 in the valve body, around the valve stem then through the opening 133 in the tubular part 141, then in the element 143 to exit through the ejection orifice with restricted section 144.
- the pipe 106 presses on the seal 107 which deforms.
- the propellant gas can then pass through line 106. It enters the gel stream at the end of part 141 b of line 141. In this part 141 b , gas bubbles are formed which separate drops of gel and exert pressure on them. The separate drops of gel are thus sprayed onto the hair at the point referred to in using the tubular element 143.
- the user just has to move the device 101.
- the return spring 139 returns the valve stem to the rest position; the opening 133 is again closed by the seal 136 and the gel can no longer flow into the pipe 141. Simultaneously, the push button goes up and the pipe 106 also goes up and stops pressing on the seal 107 which closes said pipe 106. The device 10O is again in the rest or storage position.
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- Dispersion Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
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Description
La présente invention,concerne un procédé de distribution d'un gel visqueux selon le préambule de la revendication 1 et un dispositif pour la mise en oeuvre du procédé selon le préambule de la revendication 5.The present invention relates to a method of dispensing a viscous gel according to the preamble of claim 1 and a device for carrying out the method according to the preamble of
La présente invention s'applique notamment à la distribution sur la chevelure d'un gel de coiffage destiné à modeler la coiffure. Ces gels sont généralement commercialisés en pot et l'utilisateur applique le gel sur la chevelure avec les mains. Pour des raisons de propreté et d'hygiène, on cherche à obtenir une application localisée du produit sur la chevelure, sans l'intermédiaire des mains.The present invention applies in particular to the distribution over the hair of a styling gel intended to model the hairstyle. These gels are generally sold in jars and the user applies the gel to the hair with their hands. For reasons of cleanliness and hygiene, we seek to obtain a localized application of the product on the hair, without the intermediary of the hands.
On a songé à utiliser, pour l'application des gels de coiffage, des brosses à poils creux amenant directement le produit sur le cheveu, ces brosses contenant le produit dans un réservoir attenant aux poils ; ou des peignes à conduits internes. Mais les gels de coiffage qui sont fortement visqueux, bouchent plus ou moins rapidement les différents conduits.Consideration has been given to using, for the application of styling gels, brushes with hollow bristles bringing the product directly to the hair, these brushes containing the product in a reservoir adjoining the bristles; or combs with internal conduits. However, styling gels which are highly viscous, more or less quickly clog the various conduits.
On a également essayé de pulvériser des produits sur les cheveux sous forme d'aérosol à l'aide d'un gaz propulseur ou à l'aide d'une pompe.Attempts have also been made to spray products on the hair in the form of an aerosol using a propellant gas or using a pump.
Mais pour pouvoir utiliser ce type de pulvérisation, il est nécessaire d'abaisser la viscosité du gel et le gel à viscosité plus faible obtenu ne permet plus, après application, de modeler la coiffure comme souhaité.But to be able to use this type of spraying, it is necessary to lower the viscosity of the gel and the gel with lower viscosity obtained no longer allows, after application, to shape the hairstyle as desired.
Les dispositifs de pulvérisation sous pression à l'aide d'un gaz sous pression de type "récipient aérosol" sont, de façon connue, des dispositifs constitués d'un récipient dans lequel est contenu le produit à distribuer et un gaz propulseur. Le récipient est muni d'une valve comportant généralement une tige émergente sur laquelle on appuie pour actionner la valve, un bouton-poussoir permettant d'appuyer sur la tige émergente. Le bouton-poussoir contient généralement un canal qui communique avec la tige émergente et qui s'ouvre vers l'extérieur, pour assurer la distribution du produit. Par exemple, DE-A 2 205 261 décrit un procédé de distribution d'un gel correspondant au préambule de la revendication 1, ainsi qu'un dispositif de pulvérisation correspondant au préambule de la revendication 5 comportant deux récipients séparés, le récipient interne étant déformable et contenant le produit à distribuer et le récipient externe étant rigide ; le gaz propulseur est disposé entre le récipient interne et le récipient externe ; une canalisation permet d'introduire une quantité de gaz propulseur dans le canal de distribution du produit à distribuer. Mais ces récipients ont été jusqu'a présent utilisés pour pulvériser des produits faiblement visqueux.Pressure spraying devices using a pressurized gas of the "aerosol container" type are, in known manner, devices consisting of a container in which the product to be dispensed and a propellant gas are contained. The container is provided with a valve generally comprising an emerging rod on which one presses for actuate the valve, a push button to press the emerging rod. The push button generally contains a channel which communicates with the emerging rod and which opens towards the outside, to ensure the distribution of the product. For example, DE-A 2 205 261 describes a method for dispensing a gel corresponding to the preamble of claim 1, as well as a spraying device corresponding to the preamble of
La présente invention a pour but un procédé qui permette de distribuer un produit ayant une viscosité élevée comprise entre 20 et 80 poises (entre 2 et 8 pascals.secondes) sans l'intermédiaire de la main en tant qu'applicateur.The object of the present invention is a method which makes it possible to dispense a product having a high viscosity of between 20 and 80 poises (between 2 and 8 pascals.seconds) without the intermediary of the hand as an applicator.
Selon la présente invention, ce but est atteint en stockant séparément le gel et un gaz non-miscible au gel, en formant dans un canal s'ouvrant par une ouverture restreinte, un courant de gel et en introduisant dans ledit courant de gel, un courant de gaz non-miscible au gel de façon à former des bulles de gaz séparant des gouttes de gel, les gouttes de gel étant éjectées sous la pression du gaz par l'ouverture de faible dimension du canal. On projette ainsi, par exemple sur la chevelure, des gouttes séparées relativement grosses de gel à une cadence relativement faible. Dans ces conditions, en déplaçant le dispositif de distribution on peut répartir le gel fortement visqueux sur la chevelure, sans avoir à utiliser les mains. La coiffure est ensuite modelée de façon connue avec un peigne ou une brosse.According to the present invention, this object is achieved by separately storing the gel and a gas immiscible with the gel, by forming in a channel opening through a restricted opening, a gel stream and by introducing into said gel stream, a current of gas immiscible with the gel so as to form gas bubbles separating drops of gel, the drops of gel being ejected under the pressure of the gas through the small opening of the channel. One thus projects, for example on the hair, relatively large separate drops of gel at a relatively low rate. Under these conditions, by moving the dispensing device, the highly viscous gel can be distributed over the hair, without having to use the hands. The hairstyle is then modeled in a known manner with a comb or a brush.
La présente invention a, par conséquent, pour objet, un procédé de distribution d'un gel à l'aide d'un gaz, dans lequel on stocke le gel et un gaz dans deux enceintes séparées et, lors de la distribution, on envoie sous pression le gel dans un canal de distribution et on injecte un gaz dans le courant de gel, caractérisé par le fait que le gel a une viscosité comprise entre 2 et 8 pascals.seconde, que le gaz est un gaz non-miscible au gel, que, lors de la distribution, on envoie sous pression le gel dans un canal de distribution se terminant par un orifice d'éjection à section restreinte, que l'on injecte le gaz non-miscible sous pression dans le courant de gel en un point déterminé du canal, de façon à former des bulles de gaz dans le courant de gel et que l'on éjecte les gouttes de gel séparées par des bulles de gaz obtenues dans le canal par l'orifice d'éjection à section restreinte dudit canal.The present invention therefore relates to a method of dispensing a gel using a gas, in which the gel and a gas are stored in two separate enclosures and, during dispensing, is sent under pressure the gel in a distribution channel and a gas is injected into the gel stream, characterized in that the gel has a viscosity between 2 and 8 pascals.second, that the gas is a gas immiscible with the gel , that, during distribution, the gel is sent under pressure to a distribution channel ending in a ejection orifice of restricted section, which the non-miscible gas is injected under pressure into the gel stream at a determined point of the channel, so as to form gas bubbles in the gel stream and that ejects the gel drops separated by gas bubbles obtained in the channel through the restricted section ejection orifice of said channel.
Selon ce procédé, le gel et le gaz de distribution étant séparés au cours du stockage, il ne peut y avoir mélange qu'au moment de la distribution. Le temps de contact entre le gel et le gaz étant court et le gaz n'étant pas miscible au gel, il y a donc formation de bulles de gaz qui séparent des gouttes de gel. Sous la pression du gaz de distribution, pour les viscosités de gel données, les gouttes de gel sont éjectées à travers l'orifice d'éjection à section restreinte, prennent de la vitesse et sont projetées, sur la chevelure par exemple.According to this process, the gel and the distribution gas being separated during storage, there can be mixing only at the time of distribution. The contact time between the gel and the gas being short and the gas not being miscible with the gel, there is therefore formation of gas bubbles which separate drops of gel. Under the pressure of the distribution gas, for the given gel viscosities, the drops of gel are ejected through the ejection orifice of restricted section, gain speed and are projected, on the hair for example.
On a constaté que pour des viscosités inférieures a 2 pascals.seconde, le gel est trop liquide sur la chevelure et que pour des viscosités supérieures a 8 pascals.seconde, la distribution devient difficile. Il faut noter qu'aux plus faibles viscosités le gel est pulvérisé sous forme de fines gouttelettes ou de spray.It has been found that for viscosities less than 2 pascals.second, the gel is too liquid on the hair and that for viscosities greater than 8 pascals.second, the distribution becomes difficult. It should be noted that at the lower viscosities the gel is sprayed in the form of fine droplets or spray.
Par gaz non-miscible au gel, on entend un gaz qui ne se dissout pas instantanément dans le gel. Il est bien évident que si le gaz restait en contact avec le gel au cours du stockage, le gaz risquerait de se dissoudre au moins partiellement dans le gel. Le gaz non-miscible peut être un gaz comprimé, par exemple de l'air comprimé ou un gaz liquide à température ordinaire, tel que le butane ou un hydrocarbure chlorofluoré par exemple.By gel-immiscible gas is meant a gas which does not dissolve instantly in the gel. It is obvious that if the gas remained in contact with the gel during storage, the gas would at least partially dissolve in the gel. The immiscible gas can be a compressed gas, for example compressed air or a liquid gas at ordinary temperature, such as butane or a chlorofluorinated hydrocarbon for example.
Par canal de distribution, on entend l'ensemble des éléments délimitant le trajet du courant de gel depuis sa sortie de l'enceinte le contenant jusqu'à l'orifice d'éjection à section restreinte du canal.By distribution channel is meant all of the elements delimiting the path of the gel current from its exit from the enclosure containing it to the restricted section ejection orifice of the channel.
Le diamètre de l'orifice d'éjection est généralement compris entre 0,5 mm et 2 mm, de préférence voisin de 1 mm ; pour un canal dont la partie terminale restreinte a un diamètre voisin de 1 mm, on obtient ainsi des gouttes de gel ayant en général un diamètre de 2 à 5 mm à une cadence de 5 à 10 gouttes par seconde.The diameter of the ejection orifice is generally between 0.5 mm and 2 mm, preferably close to 1 mm; for a channel whose restricted end portion has a diameter close to 1 mm, gel drops are thus generally obtained having a diameter of 2 to 5 mm at a rate of 5 to 10 drops per second.
Selon l'invention, le gel est envoyé dans le canal de distribution à l'aide d'un gaz propulseur. Le gaz propulseur et le gaz non-miscible sont, de préférence, un seul et même gaz. Le gel est alors contenu dans une poche souple, elle-même contenue dans un récipient rempli de gaz sous pression, une partie du gaz sous pression contenu dans le récipient étant prélevée au cours de la distribution pour être injectée dans le courant de gel en un point du canal de distribution situé avant l'ouverture restreinte. Le gaz a alors deux fonctions : propulser le gel pour le faire sortir de la poche souple et former des bulles dans le courant de gel pour permettre l'éjection de gouttes de gel du canal.According to the invention, the gel is sent into the distribution channel using a propellant. The propellant gas and the immiscible gas are preferably one and the same gas. The gel is then contained in a flexible pouch, itself contained in a container filled with pressurized gas, part of the pressurized gas contained in the container being withdrawn during dispensing to be injected into the gel stream in a point of the distribution channel located before the restricted opening. The gas then has two functions: propelling the gel out of the flexible bag and forming bubbles in the gel stream to allow the ejection of gel drops from the channel.
La présente invention a également pour objet un dispositif pour la mise en oeuvre du procédé selon l'invention constitué par un récipient pressurisé muni d'une coupelle de valve sur laquelle est sertie une valve de façon que le corps de valve fixe soit disposé dans le récipient et que la tige de valve émerge, la valve étant actionnée par un bouton-poussoir muni d'une partie mobile, coopérant avec la tige de valve, sur laquelle on appuie pour enfoncer la tige de valve dans le corps de valve, le canal de distribution étant constitué par les différents éléments permettant le passage du gel entre sa sortie du récipient et l'orifice d'éjection et dans lequel est ménagé un conduit pour la passage du gel à distribuer sortant de la tige de valve vers l'orifice d'éjection du gel, une poche en matériau souple contenant le gel à distribuer est fixée sur le corps de valve, et un gaz étant disposé dans le récipient autour de la poche en matériau souple, une conduite permet d'introduire le gaz en un point quelconque du canal de distribution, caractérisé par le fait que le gel a une viscosité comprise entre 2 et 8 pascals.seconde, que le gaz est un gaz non-miscible au gel et que l'orifice d'éjection du conduit est à section restreinte et que la conduite est ouverte ou fermée à l'aide d'un joint dont le déplacement est commandé par le bouton-poussoir.The present invention also relates to a device for implementing the method according to the invention consisting of a pressurized container provided with a valve cup on which a valve is crimped so that the fixed valve body is disposed in the container and the valve stem emerges, the valve being actuated by a push button provided with a movable part, cooperating with the valve stem, on which one presses to push the valve stem into the valve body, the channel of distribution being constituted by the various elements allowing the passage of the gel between its outlet from the container and the ejection orifice and in which is formed a conduit for the passage of the gel to be dispensed leaving the valve stem towards the gel ejection orifice, a bag of flexible material containing the gel to be dispensed is fixed on the valve body, and a gas being placed in the container around the bag made of flexible material, a pipe makes it possible to introduce the gas at any point of the distribution channel, characterized by the fact that the gel has a viscosity between 2 and 8 pascals.second, that the gas is a gas immiscible with the gel and that the ejection orifice of the duct is of restricted section and that the duct is opened or closed at l 'using a seal whose movement is controlled by the push button.
Selon un premier mode de réalisation du dispositif, la conduite d'introduction du gaz sous pression s'ouvre dans le corps de valve. Le joint est alors, de préférence, fixé sur la partie non émergente de la tige de valve, le joint se déplaçant avec la tige de valve pour ouvrir la conduite d'introduction du gaz.According to a first embodiment of the device, the pipe for introducing the pressurized gas opens in the valve body. The seal is then preferably fixed on the non-emerging part of the valve stem, the seal moving with the valve stem to open the gas introduction pipe.
Selon un second mode de réalisation, la conduite d'introduction du gaz sous pression s'ouvre dans le conduit ménagé dans le bouton-poussoir. Selon une variante préférée, la conduite d'introduction est solidaire au bouton-poussoir et coulisse dans une ouverture ménagée dans la coupelle de va ve, le joint fermant la conduite étant disposé sous la coupelle de valve.According to a second embodiment, the pipe for introducing the pressurized gas opens into the pipe provided in the push button. According to a preferred variant, the introduction pipe is integral with the push button and slides in an opening in the va ve cup, the seal closing the pipe being disposed under the valve cup.
La description donnée, ci-dessous, à titre purement illustratif et non limitatif de deux modes de réalisation du dispositif, illustrés sur le dessin en annexe, permettra de mieux comprendre l'invention.The description given below, by way of illustration only and without limitation, of two embodiments of the device, illustrated in the appended drawing, will allow a better understanding of the invention.
Sur le dessin annexé :
- la figure 1 représente en vue de côté un premier mode de réalisation du dispositif selon l'invention ;
- la figure 2 est, en coupe longitudinale, une vue plus en détail de la valve du dispositif de la figure 1 en position de repos ;
- la figure 3 représente la même vue de la valve, en position de distribution ;
- la figure 4 représente, en vue de côté, un second mode de réalisation du dispositif selon l'invention, et
- la figure 5 est une vue en coupe longitudinale plus en détail de la valve et de la tête de distribution du dispositif de la figure 4, en position de repos.
- Figure 1 shows a side view of a first embodiment of the device according to the invention;
- Figure 2 is, in longitudinal section, a more detailed view of the valve of the device of Figure 1 in the rest position;
- FIG. 3 shows the same view of the valve, in the dispensing position;
- FIG. 4 represents, in side view, a second embodiment of the device according to the invention, and
- Figure 5 is a longitudinal sectional view in more detail of the valve and the dispensing head of the device of Figure 4, in the rest position.
Le dispositif de distribution d'un gel selon le premier mode de réalisation, est désigné dans son ensemble par le chiffre 1. Il est constitué par un récipient 2 fermé par une coupelle 21 de valve sertie par un bourrelet 22 sur le bord supérieur du récipient (dans la position représentée sur la figure 1). Sur la coupelle 21 de valve, est sertie une valve 3 qui est actionnée par un bouton-poussoir 4.The gel dispensing device according to the first embodiment, is designated as a whole by the number 1. It consists of a
Sur le corps 31 de la valve, est fixée dans le récipient 2 une poche déformable 5 qui contient le gel G de coiffage à distribuer. A l'extérieur de la poche 5, est disposé un gaz propulseur P.On the
La valve est constituée par un corps de valve 31 fixe et par une tige 32 mobile, coulissant dans le corps de valve 31. Dans le fond du corps de valve 31, est ménagée une ouverture 34 qui met en communication la poche 5 et le corps de valve 31 et permet le passage du gel G dans le corps de valve 31. Les parois latérales 35 du corps 31 de valve s'élargissent légèrement vers l'extérieur. Sur son rebord supérieur, le corps de valve est en contact avec un joint annulaire 36 maintenu en place par un sertissage 23 faisant partie de la coupelle de valve 21. La tige de valve 32 comporte deux portions ne communiquant pas directement entre elles : une portion tubulaire 32a cylindrique s'ouvrant vers l'extérieur, munie au voisinage du fond, d'une ouverture 33 et une portion cylindrique 32b de plus grand diamètre extérieur essentiellement contenue dans le corps de valve 31, munie d'un évidement 37 conique. Une ouverture 38 perpendiculaire à l'axe de la valve est ménagée à travers la paroi de la partie cylindrique 32b. Un ressort 39 est disposé entre la partie inférieure de la partie cylindrique et le fond du corps de valve 31.The valve is constituted by a
La conduite 6 d'introduction du gaz dans le canal est constituée par une ouverture percée dans la paroi latérale 35 du corps de valve 31 au-dessus de la fixation de la poche 5 sur le corps 31. Cette conduite 6 est, en position de repos, fermée par un joint torique 7, disposé autour de la paroi externe de la tige 32 de valve.The
Dans le bouton-poussoir visible sur la figure 1, est ménagé un conduit 41 coudé à angle droit. La partie du conduit 41a, parallèle à l'axe de la valve, se termine par un élargissement cylindroconique 42 dans lequel la partie supérieure 32a de la tige 32 peut s'insérer de façon étanche et à l'intérieur de la partie 41b perpendiculaire à l'axe de la valve est fixée, par emboîtage, une pièce tubulaire 43 qui se termine par une ouverture 44 interne restreinte de diamètre inférieur au diamètre interne de la pièce tubulaire 43. Cet élément fait saillie par rapport au bouton-poussoir 4.In the push-button visible in FIG. 1, a
Le dispositif fonctionne de la façon décrite ci-après : lorsque l'utilisateur désire distribuer le gel sur sa chevelure par exemple, il vise le point choisi de la chevelure avec l'élément 43. Il appuie sur la face supérieure du bouton-poussoir 4, qui appuie à son tour sur la partie 32a émergente de la tige de valve. La tige s'enfonce dans le corps de valve 31, en comprimant le ressort 39. L'ouverture 33 se dégage du joint 36 et le gel peut sortir de la poche, sous la pression exercée par le gaz contenu dans le récipient 2, par le canal de passage du produit c'est-à-dire par l'ouverture 34 à l'intérieur du corps de valve 31 puis dans l'évidement 37 ; le gel passe ensuite par l'ouverture 38 dans l'espace annulaire compris entre le corps de valve et la tige de valve, puis par l'ouverture 33 dans la partie émergente 32a de la tige de valve et de là, dans le conduit 41 ménagé dans le bouton-poussoir et dans l'élément 43.The device operates as described below: when the user wishes to distribute the gel over his hair, for example, he aims at the chosen point of the hair with the
Simultanément, le joint 7 fixé sur la partie 32b de la tige de valve, s'abaisse et dégage la conduite 6 d'introduction du gaz propulseur (voir figure 3). Il se forme des bulles de gaz dans le courant de gel dans le canal, bulles de gaz qui séparent des gouttes de gel. Au niveau de l'orifice d'éjection 44, les gouttes sont accélérées et éjectées par le gaz sous pression. L'utilisateur applique sur la chevelure des gouttes de gel à une faible cadence. Pour répartir le gel, il lui suffit de déplacer le dispositif selon l'invention.Simultaneously, the seal 7 attached to the
Lorsque l'utilisateur désire arrêter la distribution, il cesse d'appuyer sur le bouton-poussoir. Sous l'action du ressort 39, la tige de valve 32 revient en position de repos (voir figure 2). L'ouverture 33 est à nouveau fermée par le joint 36 et la conduite 6 par le joint 7. La distribution du gel s'arrête.When the user wishes to stop dispensing, he stops pressing the push button. Under the action of the
Le second mode de réalisation est illustré sur les figures 4 et 5. Le dispositif est désigné dans son ensemble par 101. Il est constitué par un récipient 102 fermé sur son bord supérieur par une coupelle de valve 121, sertie par un bourrelet 122. Sur la coupelle de valve est sertie une valve 103 comportant un corps de valve fixe 131 et une tige mobile 132, dont une partie tubulaire 132a est émergente.The second embodiment is illustrated in Figures 4 and 5. The device is designated as a whole by 101. It consists of a
Sur la tige émergente, est fixé un bouton-poussoir 104.On the emerging rod, a
A l'intérieur du récipient 102, est disposée une poche déformable 105 qui est soudée sur le corps de valve 131, la poche déformable contenant le gel G. Dans le récipient 102 autour de la poche déformable 105, est disposé le gaz propulseur.Inside the
La valve 103 est constituée d'un corps de valve 131 fixé par un sertissage 123 sur la coupelle de valve 121, un joint 136 étant disposé entre le dôme de la coupelle de valve et le corps de valve 131. Au fond du corps de valve est ménagée une ouverture 134 pour le passage du gel, du récipient dans la valve.The
La tige de valve 132 comporte deux parties séparées par une cloison ; la partie 132a est une partie tubulaire cylindrique s'ouvrant vers l'extérieur et munie au voisinage de la cloison d'une ouverture radiale 133 qui, en position de repos de la valve 103, est située au niveau du joint 136. Un ressort de rappel 139 est disposé entre le fond du corps de valve et la partie inférieure 132b de la tige 132 de valve.The
Le bouton-poussoir 104 est muni d'un conduit interne comportant deux parties disposées à angle droit. La partie 141a est parallèle à l'axe de la valve et se termine par un alésage 142 cylindroconique dans lequel la partie supérieure de la tige 132a peut s'insérer. Une partie 141b est perpendiculaire à l'axe de valve ; dans cette partie est emboîté à force un élément tubulaire 143, muni d'un orifice d'éjection à section restreinte 144.The
La conduite 1O6 d'injection du gaz est une conduite comportant deux parties à angle droit ; la partie 106a est perpendiculaire à l'axe de valve et débouche dans le canal de distribution du gel, à l'extrémité de la partie 141b du conduit 141, dans l'axe de ladite partie 141b. La partie 106b est parallèle à l'axe de valve et s'insère par une extrémité amincie dans une ouverture 124 de la coupelle 121 de valve.The gas injection pipe 10O is a pipe comprising two parts at right angles; the
L'extrémité amincie a une longueur suffisante pour que la partie 106b puisse coulisser dans l'ouverture 124 quand on enfonce le bouton-poussoir 1O4. Un joint annulaire 107 est disposé autour du corps de valve entre la face interne de la coupelle de valve 121 et une collerette annulaire 138 fixée sur la paroi extérieure du corps de valve 131. En position de repos, ce joint 1O7 ferme l'entrée de la conduite 106 qui est située radialement vers l'extérieur relativement à la collerette 138.The thinned end has a sufficient length so that the
Le dispositif 101 fonctionne de la façon décrite ci-après. Lorsque l'utilisateur désire distribuer le gel, il appuie sur la face supérieure du bouton-poussoir 104 et enfonce la tige de valve 132 qui comprime le ressort 139. L'ouverture 133 se libère du joint 136. Sous l'action du gaz propulseur qui comprime la poche souple 105, le gel passe par l'ouverture 134 dans le corps de valve, autour de la tige de valve puis par l'ouverture 133 dans la partie tubulaire 141, ensuite dans l'élément 143 pour sortir par l'orifice d'éjection à section restreinte 144. Simultanément, la conduite 106 appuie sur le joint 107 qui se déforme. Le gaz propulseur peut alors passer dans la conduite 106. Il pénètre dans le courant de gel à l'extrémité de la partie 141b du conduit 141. Il se forme, dans cette partie 141b, des bulles de gaz qui séparent des gouttes de gel et exercent une pression sur celles-ci. Les gouttes séparées de gel sont ainsi projetées sur la chevelure à l'endroit visé à l'aide de l'élément tubulaire 143.The
Pour effectuer une meilleure répartition du gel, il suffit à l'utilisateur de déplacer le dispositif 101.To make a better distribution of the gel, the user just has to move the
Lorsque l'utilisateur cesse d'appuyer sur le bouton-poussoir, le ressort de rappel 139 ramène la tige de valve en position de repos ; l'ouverture 133 est à nouveau fermée par le joint 136 et le gel ne peut plus s'écouler dans le conduit 141. Simultanément, le bouton-poussoir remonte et la conduite 106 remonte également et cesse d'appuyer sur le joint 107 qui ferme ladite conduite 106. Le dispositif 1O1 est à nouveau en position de repos ou stockage.When the user stops pressing the push button, the
Claims (9)
- Process for dispensing a gel with the aid of a gas, in which the gel and a gas are stored in two separate chambers and, during delivery, the gel is sent under pressure through a delivery channel and a gas is injected into the flow of gel, characterized in that the gel has a viscosity of between 2 and 8 pascal seconds, in that the gas is a gas which is immiscible with the gel, in that, during delivery, the gel is sent under pressure through a delivery channel ending in an ejection orifice of narrow section, in that the immiscible gas is injected under pressure into the flow of gel at a predetermined point of the channel so as to form gas bubbles in the flow of gel and in that the drops of gel which are separated by the gas bubbles obtained in the channel are ejected through the narrow-section ejection orifice of the channel.
- Process according to Claim 1, characterized in that the diameter of the narrow-section ejection orifice lies between 0.5 mm and 2 mm.
- Process according to one of Claims 1 and 2, characterized in that drops of gel having a diameter of 2 to 5 mm are ejected at a rate of 5 to 10 drops per second.
- Process according to one of Claims 1 to 3, characterized in that the gel is sent through the delivery channel with the aid of a propellant gas and in that the propellant gas and the gas which is immiscible with the gel are one and the same gas.
- Device for implementing the process according to one of Claims 1 to 4, consisting of a pressurized container (2, 102) provided with a valve cup (21, 121) on to which a valve (3, 103) is crimped so that the fixed valve body (31, 131) is arranged in the container (2, 102) and the movable valve stem (32, 132) emerges, the valve (3, 103) being actuated by a push-button (4, 104) provided with a movable part interacting with the valve stem (32, 132) which is pressed in order to insert the valve stem (32, 132) into the valve body (31, 131), the delivery channel consisting of the various elements allowing passage of the gel between its outlet from the container (2, 102) and the ejection orifice (44, 144), and in which a duct (41, 141) is formed for passage of the gel to be dispensed leaving the valve stem (32, 132) towards the gel ejection orifice (44, 144), a bag (5, 105) of flexible material containing the gel (G) to be dispensed is fixed on the valve body (31, 131) and a gas (P) being arranged in the container around the bag of flexible material, a conduit (6, 106) makes it possible to introduce the gas at any point of the delivery channel, characterized in that the gel has a viscosity lying between 2 and 8 pascal seconds, in that the gas is a gas which is immiscible with the gel and in that the ejection orifice (44, 144) of the duct has narrow section and in that the conduit (6, 106) is opened or closed with the aid of a seal (7, 107) whose movement is controlled by the push-button.
- Device according to Claim 5, characterized in that the conduit (6) for introducing the immiscible gas opens into the valve body (31).
- Device according to Claim 6, characterized in that the seal (7) closing the said conduit (6) is fixed on the valve stem (32).
- Device according to Claim 5, characterized in that the conduit (106) for introducing the pressurized gas (P) opens into the duct (141) made in the push-button (104).
- Device according to Claim 8, characterized in that the conduit (106) is solidly attached to the push-button (104) and slides through an opening (124) made in the valve cup (121), the seal (107) closing the conduit (106) being arranged below the valve cup (121).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9107129 | 1991-06-12 | ||
FR9107129A FR2677619B1 (en) | 1991-06-12 | 1991-06-12 | PROCESS FOR DISPENSING A VISCOUS GEL AND DEVICE FOR IMPLEMENTING THE PROCESS. |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0518723A1 EP0518723A1 (en) | 1992-12-16 |
EP0518723B1 true EP0518723B1 (en) | 1995-04-05 |
Family
ID=9413726
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19920401488 Expired - Lifetime EP0518723B1 (en) | 1991-06-12 | 1992-06-01 | Method and device for dispensing a viscous gel |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0518723B1 (en) |
JP (1) | JPH05184422A (en) |
DE (1) | DE69201916T2 (en) |
ES (1) | ES2070600T3 (en) |
FR (1) | FR2677619B1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2840212B1 (en) * | 2002-05-31 | 2005-09-16 | Oreal | AEROSOL DEVICE HAVING TWO COMPARTMENTS COMPRISING A CAPILLARY TREATMENT COMPOSITION AND A CAPILLARY TREATMENT METHOD |
US7157076B2 (en) | 2002-05-31 | 2007-01-02 | L'oreal | Aerosol device comprising a hair treatment composition, and hair treatment process |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3416707A (en) * | 1966-09-20 | 1968-12-17 | Stephen L. Pollard | Valve, aerosol polymer dispenser, and method |
US3610481A (en) * | 1969-05-27 | 1971-10-05 | Leonard L Marraffino | Two-fluid aerosol dispenser with internal collapsible secondary fluid container |
US3791098A (en) * | 1971-02-08 | 1974-02-12 | Gillette Co | Method of manufacturing a pressurized dispensing package |
US3770165A (en) * | 1971-08-12 | 1973-11-06 | Vca Corp | Mixing type liquid dispenser |
AU6650174A (en) * | 1973-03-14 | 1975-09-11 | John Thompson | Spraying gels |
DE2732358A1 (en) * | 1977-07-18 | 1979-02-08 | Gustav Beyer | Atomiser spray bottle - with venturi and double valve for atomising medium and substance to be atomised |
-
1991
- 1991-06-12 FR FR9107129A patent/FR2677619B1/en not_active Expired - Lifetime
-
1992
- 1992-06-01 EP EP19920401488 patent/EP0518723B1/en not_active Expired - Lifetime
- 1992-06-01 DE DE1992601916 patent/DE69201916T2/en not_active Expired - Fee Related
- 1992-06-01 ES ES92401488T patent/ES2070600T3/en not_active Expired - Lifetime
- 1992-06-11 JP JP4175968A patent/JPH05184422A/en active Pending
Also Published As
Publication number | Publication date |
---|---|
ES2070600T3 (en) | 1995-06-01 |
FR2677619B1 (en) | 1993-09-24 |
JPH05184422A (en) | 1993-07-27 |
DE69201916T2 (en) | 1995-11-30 |
EP0518723A1 (en) | 1992-12-16 |
FR2677619A1 (en) | 1992-12-18 |
DE69201916D1 (en) | 1995-05-11 |
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