EP0518723B1 - Verfahren und Vorrichtung zur Ausgabe eines viskösen Gels - Google Patents

Verfahren und Vorrichtung zur Ausgabe eines viskösen Gels Download PDF

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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
Application number
EP19920401488
Other languages
English (en)
French (fr)
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EP0518723A1 (de
Inventor
Vincent De Laforcade
Patrice Brunerie
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
LOreal SA
Original Assignee
LOreal SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by LOreal SA filed Critical LOreal SA
Publication of EP0518723A1 publication Critical patent/EP0518723A1/de
Application granted granted Critical
Publication of EP0518723B1 publication Critical patent/EP0518723B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B65D83/60—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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  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Nozzles (AREA)
  • Jellies, Jams, And Syrups (AREA)
  • Cosmetics (AREA)
  • Colloid Chemistry (AREA)

Claims (9)

  1. Verfahren zur Abgabe eines Gels mit Hilfe eines Gases, bei dem man das Gel und ein Gas in zwei getrennten Kammern aufbewahrt und während der Abgabe das Gel unter Druck in einen Abgabekanal schickt und ein Gas in den Gelstrom einbläst, dadurch gekennzeichnet, daß das Gel eine Viskosität zwischen 2 und 8 Pa sec. aufweist, daß das Gas ein mit dem Gel nicht mischbares Gas ist, daß man bei der Abgabe das Gel unter Druck in einen Abgabekanal schickt, der in einer Ausstoßöffnung mit verengtem Querschnitt endet, daß man an einer bestimmten Stelle des Kanals das nicht-mischbare Gas unter Druck in den Gelstrom einbläst, so daß Gasblasen in dem Gelstrom gebildet werden und daß man die durch die Gasblasen voneinander getrennten Geltropfen ausstößt, die in dem Kanal mit Hilfe der Ausstoßöffnung mit verengtem Querschnitt des Kanals erzeugt wurden.
  2. Verfahren gemäß Anspruch 1, dadurch gekennzeichnet, daß der Durchmesser der Ausstoßöffnung mit verengtem Querschnitt zwischen 0,5 mm und 2 mm beträgt.
  3. Verfahren gemäß einem der Ansprüche 1 oder 2, dadurch gekennzeichnet, daß man Geltropfen mit einem Durchmesser von 2 bis 5 mm bei einem Durchsatz von 5 bis 10 Tropfen pro Sekunde ausstößt.
  4. Verfahren gemäß einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß man das Gel mit Hilfe eines Treibgases in den Abgabekanal schickt und daß das Treibgas und das mit dem Gel nicht mischbare Gas ein und dasselbe Gas sind.
  5. Vorrichtung zur Durchführung des Verfahrens gemäß einem der Ansprüche 1 bis 4, bestehend aus einem unter Druck stehenden Behälter (2,102), der eine Ventilkappe (21,121) aufweist, in die ein Ventil (3,103) so eingesetzt ist, daß der unbewegliche Ventilkörper (31,131) in dem Behälter (2,102) angeordnet ist und daß der bewegliche Ventilschaft (32,132) herausragt, wobei das Ventil (3,103) mit Hilfe eines Druckknopfes (4,104) betätigt wird, der ein bewegliches Teil aufweist, das mit dem Ventilschaft (32,132) zusammenwirkt, und auf das man drückt, um den Ventilschaft (32,132) in den Ventilkörper (31,131) hineinzuschieben, wobei der Abgabekanal aus unterschiedlichen Elementen besteht, die den Durchlaß des Gels zwischen seinem Austritt aus dem Behälter (2,102) und der Ausstoßöffnung (44,144) ermöglichen, und in welchem eine Leitung (41,141) zum Durchtritt des abzugebenden Gels ausgespart ist, das den Ventilschaft (32,132) in Richtung Ausstoßöffnung (44,144) für das Gel verläßt, wobei ein Beutel (5,105) aus nachgiebigem Material, der das abzugebende Gel (G) enthält, an dem Ventilkörper (31,131) befestigt ist und sich ein Gas (P) in dem, den Beutel aus nachgiebigem Material umgebenden Behälter befindet, wobei eine Leitung (6,106) den Einlaß des Gases an irgendeiner Stelle des Abgabekanals ermöglicht, dadurch gekennzeichnet, daß das Gel eine Viskosität zwischen 2 und 8 Pa sec. aufweist, daß das Gas ein mit dem Gel nicht mischbares Gas ist und daß die Ausstoßöffnung (44,144) der Leitung einen verengten Querschnitt aufweist und daß die Leitung (6,106) mit Hilfe einer Dichtung (7,107), deren Verschiebung durch den Druckknopf bewirkt wird, geöffnet oder verschlossen wird.
  6. Vorrichtung gemäß Anspruch 5, dadurch gekennzeichnet, daß die Zuführleitung (6) für das nicht mischbare Gas in den Ventilkörper (31) mündet.
  7. Vorrichtung gemäß Anspruch 6, dadurch gekennzeichnet, daß die Dichtung (7), welche die Leitung (6) verschließt, auf dem Ventilschaft (32) befestigt ist.
  8. Vorrichtung gemäß Anspruch 5, dadurch gekennzeichnet, daß die Zuführleitung (106) für das unter Druck stehende Gas (P) in die, in dem Druckknopf (104) ausgesparte Leitung (141) mündet.
  9. Vorrichtung gemäß Anspruch 8, dadurch gekennzeichnet, daß die Leitung (106) mit dem Druckknopf (104) verbunden und in einer in der Ventilkappe (121) ausgesparten Öffnung (124) verschiebbar ist, wobei die die Leitung (106) verschließende Dichtung (107) unter der Ventilkappe (121) angeordnet ist.
EP19920401488 1991-06-12 1992-06-01 Verfahren und Vorrichtung zur Ausgabe eines viskösen Gels Expired - Lifetime EP0518723B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9107129A FR2677619B1 (fr) 1991-06-12 1991-06-12 Procede de distribution d'un gel visqueux et dispositif pour la mise en óoeuvre du procede.
FR9107129 1991-06-12

Publications (2)

Publication Number Publication Date
EP0518723A1 EP0518723A1 (de) 1992-12-16
EP0518723B1 true EP0518723B1 (de) 1995-04-05

Family

ID=9413726

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19920401488 Expired - Lifetime EP0518723B1 (de) 1991-06-12 1992-06-01 Verfahren und Vorrichtung zur Ausgabe eines viskösen Gels

Country Status (5)

Country Link
EP (1) EP0518723B1 (de)
JP (1) JPH05184422A (de)
DE (1) DE69201916T2 (de)
ES (1) ES2070600T3 (de)
FR (1) FR2677619B1 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7157076B2 (en) 2002-05-31 2007-01-02 L'oreal Aerosol device comprising a hair treatment composition, and hair treatment process
FR2840212B1 (fr) * 2002-05-31 2005-09-16 Oreal Dispositif aerosol a deux compartiments comprenant une composition de traitement capillaire et procede de traitement capillaire

Family Cites Families (6)

* Cited by examiner, † Cited by third party
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 (de) * 1977-07-18 1979-02-08 Gustav Beyer Vergaser-spruehdose

Also Published As

Publication number Publication date
DE69201916D1 (de) 1995-05-11
EP0518723A1 (de) 1992-12-16
FR2677619A1 (fr) 1992-12-18
FR2677619B1 (fr) 1993-09-24
JPH05184422A (ja) 1993-07-27
DE69201916T2 (de) 1995-11-30
ES2070600T3 (es) 1995-06-01

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