EP1013566B1 - Procede de production d'un double dispositif pour aerosol et recipient correspondant - Google Patents

Procede de production d'un double dispositif pour aerosol et recipient correspondant Download PDF

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Publication number
EP1013566B1
EP1013566B1 EP96901550A EP96901550A EP1013566B1 EP 1013566 B1 EP1013566 B1 EP 1013566B1 EP 96901550 A EP96901550 A EP 96901550A EP 96901550 A EP96901550 A EP 96901550A EP 1013566 B1 EP1013566 B1 EP 1013566B1
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EP
European Patent Office
Prior art keywords
chamber
valve
piston
stock solution
inner bag
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
EP96901550A
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German (de)
English (en)
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EP1013566A4 (fr
EP1013566A1 (fr
Inventor
Satoshi Mekata
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.)
Daizo Corp
Original Assignee
Osaka Shipbuilding Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP07991895A external-priority patent/JP3274948B2/ja
Application filed by Osaka Shipbuilding Co Ltd filed Critical Osaka Shipbuilding Co Ltd
Publication of EP1013566A1 publication Critical patent/EP1013566A1/fr
Publication of EP1013566A4 publication Critical patent/EP1013566A4/fr
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B31/00—Packaging articles or materials under special atmospheric or gaseous conditions; Adding propellants to aerosol containers
    • B65B31/003—Adding propellants in fluid form to aerosol containers
    • 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
    • B65D83/64—Contents and propellant separated by piston
    • 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
    • B65D83/64—Contents and propellant separated by piston
    • B65D83/646—Contents and propellant separated by piston the piston being provided with a dispensing opening through which the contents are dispensed

Definitions

  • the present invention relates to a process for producing a double dispensing device like an aerosol device and a container therefor, and more particularly, to process for producing a double dispensing device characterized in steps of loading stock solution or concentrate and pressurized gas, and to a double dispensing container adapted to the process.
  • dispensing devices there are two types of devices, that is, a general type in which stock solution is loaded into a container together with propellant, and so called “a double dispensing device” in which stock solution is loaded into a container with separating from propellant by means of a barrier wall such as a piston or an inner bag such that the stock solution is pressurized by the propellant through the barrier wall.
  • a barrier wall such as a piston or an inner bag such that the stock solution is pressurized by the propellant through the barrier wall.
  • the latter is used for loading liquid food or the like which is not preferable to be blended with propellant, or stock solution which might react with propellant when they are blended with each other.
  • a collapsible inner bag or a piston movable up and down in the container is used generally.
  • the upper chamber is loaded with stock solution, and the lower chamber is loaded with propellant (liquefied gas or compressed gas).
  • propellant liquefied gas or compressed gas
  • the upper chamber is loaded with a pressurized gas and the lower chamber is loaded with a stock solution.
  • the pressurized gas is low in specific gravity.
  • such type of device needs a tube extending bellow from a dispensing valve (aerosol valve) through the piston. In this case, the piston moves with sliding along the tube and an inner wall of the container.
  • a pipe-like nozzle is inserted through a tube-inserting hole of a piston, and a stock solution is loaded below the piston with lifting the piston by means of pressure or flotage. Then, under an unstable state that the piston lifts on the way, a tube fixed to the dispensing valve is inserted through the tube-inserting hole of the piston. Then, a pressurized gas is loaded with under-cup-loading through a gap between the dispensing valve and an opening of the container, and immediately after the gas-loading, the dispensing valve is crimped, or the pressurized gas is loaded through a gas-loading-valve separately provided on the container. Therefore, some gap is required between the tube-inserting hole and the tube, and the propellant might leak through the gap.
  • the gas-leak problem among the above-mentioned problems becomes important especially, since the loaded amount of the pressurized gas depends on the volume and the upper bound of pressure, and the propellant cannot be loaded excess. That is to say, when compressed gas is used, the device is very sensitive to leak of gas not similar to the case of liquefied gas.
  • a process for producing a double dispensing device by providing a pressure-transmittable barrier wall to separate an inside of a vessel (or body of container) into a first chamber and a second chamber, a dispensing valve, a passage to connect the dispensing valve with the first chamber, and a check valve means capable of flowing liquid from the first chamber to the second chamber in a pressure vessel; loading pressurized gas substantially insoluble to stock solution into the first chamber from the valve through the passage, and further bringing the pressurized gas to the second chamber through the check valve means; and loading stock solution into the first chamber through the passage from the valve.
  • the gas remaining in the first chamber might forcibly brought to the second chamber by means of a stock solution loaded into the first chamber.
  • the gas remaining in the first chamber might also be discharged through the valve after the step of loading the gas and before the first chamber is loaded with the stock solution.
  • the double dispensing container of the present invention comprises a pressure vessel; a dispensing valve mounted on a top opening of the vessel; a pressure-transmittable barrier wall for separating an inside of the vessel into a first chamber and a second chamber; a passage for connecting the valve with the first chamber; and a check valve means for enabling movement of gas from the first chamber to the second chamber and for preventing movement in reverse direction.
  • a check valve means for enabling movement of gas from the first chamber to the second chamber and for preventing movement in reverse direction.
  • the function of the check valve means can be such extent that movement from the first chamber to the second chamber is smooth and the movement in the reverse direction is merely resisted.
  • the above-mentioned barrier wall might be a piston which separates the inside of the vessel and is slidable in up-down direction.
  • the piston might be constructed so as to function as the check valve means for enabling gas movement from the first chamber to the second chamber and for preventing reverse movement.
  • the above-mentioned passage might be a tube for connecting the valve with the first chamber.
  • the valve might be directly connected with the first chamber.
  • a stopper is preferably interposed between the vessel or valve and the piston so as to secure some space for the second chamber with a predetermined volume when the piston moves to decrease the volume of the second chamber.
  • the above-mentioned predetermined volume is preferably 30 to 50% of the volume of the vessel.
  • the stopper can be obtained by an inner face of the vessel or a lower face of the valve to be abutted against the piston.
  • the above-mentioned barrier wall can be made of a collapsible or deformable inner bag of which inside becomes the first chamber.
  • the inner bag is preferably provided with a check valve at the bottom of the inner bag or the top of the inner bag or at position near the dispensing valve.
  • the above-mentioned double dispensing container is preferably provided with a means for forcibly connecting the second chamber with the valve or the first chamber when the barrier wall moves or is deformed to reduce the volume of the first chamber.
  • a means for forcibly connecting means for the piston-type-device a through hole in the tube capable of connecting the inside of the tube with the second chamber, or an element capable deforming or piercing the piston, when the piston moves to reduce the volume of the first chamber, can be employed.
  • an element to pierce the inner bag to connecting the outer side of the inner bag with the inside of the inner bag or the valve, when the inner bag shrinks can be employed.
  • a dispensing device can be produced by loading a pressurized gas substantially insoluble to a stock solution into the first chamber from the valve through the tube, and loading a stock solution in the first chamber from the valve through the tube with keeping the container in a right-standing posture to provide motion of the pressurized gas in the first chamber to the second chamber.
  • a dispensing device in a case of piston-type double dispensing container without tube, can be produced by loading a pressurized gas substantially insoluble to a stock solution into the first chamber from the valve; and loading a stock solution in the first chamber from the valve with keeping the container in an inverted posture to provide motion of the pressurized gas remaining in the first chamber to the second chamber.
  • a double dispensing device can be produced by loading a pressurized gas substantially insoluble to stock solution from a valve; and loading a stock solution into the first chamber from the valve with keeping the container in a right standing or inverted posture to provide motion of the pressurized gas remaining in the first chamber toward the second chamber.
  • the pressurized gas in the first chamber might be discharged once after the pressurized gas is loaded, and the stock solution therefore might be loaded into the first chamber.
  • pressurized gas is loaded at first, and stock solution is loaded thereafter. That is to say, when the pressurized gas is loaded into the first chamber from a valve through a passage, such as a tube, at first, the first chamber is filled with the pressurized gas with moving or deforming a barrier wall. Then, the pressurized gas in the first chamber moves to the second chamber through the check valve means. At this situation the pressure in the first chamber is the same as the second chamber. Next, as loading a stock solution into the first chamber from the same valve, the first chamber is filled with the stock solution. During the loading of the stock solution, the pressurized gas do not leak from the second chamber to the first chamber due to the function of the check valve means.
  • containers can be loaded after the dispensing container has been assembled entirely without employing under-cup-loading. Further, since pressurized gas and stock solution can be loaded from the same valve, any additional gas-loading-valve is not necessary at a bottom of the vessel or the like. Further, loading process is easy, and production efficiency is high. Further, after the loading process, the stock solution in the first chamber is interposed between the pressurized gas in the second chamber and the valve. Therefore, the pressurized gas is in a liquid-sealed condition, and the gas is hard to leak. Therefore, it is convenient to use a compressed gas which is sensitive to leak as propellant.
  • the initial loading pressure of the pressurized gas might be low, and gas-discharging step is not necessary.
  • the process in which stock solution is loaded after the pressurized gas in the first chamber is discharged through the valve has an advantage that the container is not required to stand reversely even if the first chamber is upper side of the vessel. Beside, when the pressurized gas is discharged from the first chamber, the pressurized gas is hard to leak from the second chamber to the first chamber by virtue of the function of check valve means.
  • the pressurized gas can smoothly move from the first chamber to the second chamber since a piston functions as a check valve. Therefore, by loading stock solution into the first chamber with keeping the container in a right stand posture, in which the first chamber to be loaded with stock solution is lower side, or in an inverted posture, only the pressurized gas can be easily loaded into the second chamber through the piston capable of functioning as a check valve.
  • the dispensing container having a stopper for securing a predetermined space at end of stroke of the piston has advantage that the pressurized gas can securely move to the second chamber.
  • the inner-bag-type double dispensing device of the present invention by loading stock solution with standing in right or inverted posture in dependent to the position of the check valve, only the pressurized gas can be easily moved to the second chamber through the check valve. Further, in the double dispensing container with means for forcibly connecting, the second chamber is connected with the first chamber or the dispensing valve when the stock solution is used up. Therefore, the pressurized gas remaining in the second chamber can be exhausted outward through the first chamber and the dispensing valve. Therefore, the interior pressure can be reduced before the container is abandoned, and the container can be safely abandoned.
  • the dispensing container A has a vessel 1, a piston 2 housed therein movably up and down as a barrier wall, a tube 4 inserted in a hole 3 formed in the center of the piston 2 and a dispensing valve (hereinafter, referred to merely as "valve") 6 which is connected to an upper end of the tube 4 and closes an upper opening 5 of the vessel 1.
  • the vessel 1 is a known deep-drawn can having a trunk 7, shoulder 8 and a dome-like bottom 9 formed as one body.
  • the vessel 1 can be produced of an aluminium sheet for example.
  • a vessel assembled by a trunk made of a cylindrically curled steel sheet, a bottom part and a shoulder part can be employed. Further another vessel made of synthetic resin or glass can also be used.
  • the inside of the vessel 1 is separated by the piston 2 into the lower first chamber (stock solution chamber) N1 and the upper second chamber (pressurized gas chamber) N2. As the piston 2 moving up and down, volumes of the chambers N1, N2 vary.
  • the piston 2 has a bottom plate 10 having a dome shape according to the shape of bottom 9 of the vessel 1, a side wall 11 rising from the periphery thereof, a boss 12 provided on the center of the bottom plate 10, and rib plates 13 connecting the side wall to the upper end of the boss, so as to form a cup-like shape with upper opening.
  • the center of boss 12 is formed with the above-mentioned hole 3.
  • the side wall 11 slides along an inner surface of the vessel 1 and is elastically bendable.
  • the free end or upper end of the side wall 11 can be elastically deformed inwardly in some extent, so that the side wall 11 can function as a check valve to allow motion of gas from the first chamber N1 under the piston 2 to the second chamber N2, but not easily allow the motion of gas in the opposite direction.
  • the boss 12 can be formed so that a gap between the boss 12 and the tube 14 functions as a check valve.
  • the above-mentioned side wall 11 abuts against the lower face of the shoulder 8 of the vessel 1 when the piston 2 lifts up so that the piston cannot move upward further. That is, the side wall 11 functions as a stopper.
  • the above-mentioned piston 2 can be made of synthetic resin such as polyethylene, polypropylene, polyacetal, polyamide(nylon), polyvinyl chloride, ethylen-vinyl acetate copolymer(EVER), poleythylene terephthalate, and the like, especially engineering plastic, synthetic resin elastmer, rubber such as NBR (butadien-acrylonitrile rubber), or composition thereof or combination threof.
  • the piston can be made by combining some parts or members. Each part might be made of sole material or some materials.
  • the above-mentioned valve 6 has been known.
  • the valve 6 has a mounting cup 15, a housing 16 held by the mounting cup 15, a stem 17 housed in the housing 16 movably in up-down direction, a spring 18 for urging the stem upward, a gasket 19 interposed between the housing and the mounting cup, another gasket 21 to be attached in periphery of the mounting cup 15 for sealing between the mounting cup and a bead 20 of the vessel 1, and the like.
  • the above-mentioned tube 4 can be made of a synthetic resin similar to the piston 2 and is preferably bendable elastically in some extent. However, a hard tube without bendability also can be used.
  • the tube 4 is attached to the lower end of the housing 16 and functions as a passage to connect the inside of the housing to the first chamber N1 under the piston 2.
  • the above-mentioned dispensing container A can be produced as explained hereinafter, for example.
  • a piston 2 is inserted into the inside of a vessel 1 of which shoulder 8 is not formed as shown by imaginary line 8a.
  • the upper portion of the vessel 1 is drawn as shown by arrow mark H to form a shoulder 8.
  • the cylindrical upper end portion is curled to form a bead 20.
  • the dispesing valve 6 is mounted on the bead 20.
  • the mounting cup 15 of the valve 6 is crimped against the bead 20 to joint to the vessel as one body.
  • Fig.1 a process for producing a dispensing device by loading pressurized gas and stock solution into the empty dispensing container A will be explained.
  • S1 shows the above-mentioned step for assembling a dispensing container A
  • S2 and S3 are a step for loading pressurized gas and a step for loading stock solution, respectively.
  • the pressurized-gas-loading step S2 is a step for injecting pressurized gas into the first chamber N1 from the valve 6 through the tube 4 to fill the first chamber with the pressurized gas.
  • the piston 2 lifts with compressing the second chamber N2, and further, the piston makes the pressurized gas to move into the second chamber gradually by means of the check valve function.
  • the side wall 11 functions as a stopper.
  • the air in the vessel 1 might be remained in this step. However, the remaining air might be discharged.Such discharge of air can be performed by means of vacuum discharging in accordance with well known method when the valve is crimped on the vessel, or by opening the valve and sucking with vacuum from the stem after crimping of the valve.
  • the pressurized gas to be loaded is air, it is not necessary to discharge the remaining air in the vessel 1.
  • the piston is stopped when the side wall 11 abuts against the lower face of the shoulder 8 of the vessel 1, and a part of the pressurized gas moves to the second chamber N2 side through a gap between the piston 2 and the vessel 1.
  • stock solution is loaded from the valve 6 through the tube 4.
  • the stock solution is forcibly loaded under pressure against the pressure of the pressurized gas. Then, the stock solution pushes out the pressurized gas from the first chamber, and then the stock solution fills the first chamber with replacing the pressurized gas.
  • the stock solution is preferably sufficiently loaded so as to leak slightly to the second chamber N2, such that the pressurized gas cannot remain in the first chamber N1. Thus, a dispencing device B is completed.
  • pressurized gas gas which substantially insoluble to the stock solution is employed.
  • compessed gas of nitrogen(N 2 ), carbon dioxide(CO 2 ), air, oxygen (O 2 ), argon(Ar 2 ) , and the like can be employed. Liquefied gas is not used usually.
  • stock solution liquid such as aqueous solution, alcoholic solution, and the like, semi-solid material such as creamy food, toothpaste, and the like can be employed.
  • the ratio of pressurized gas and the stock solution is in an extent about 30:70-50:50, preferably 35:65-45:55 in volume ratio.
  • the height of the side wall 11 of piston 2, which functions as a stopper is preferably determined according to the loading ratio.
  • the dispensing device B produced as mentioned above can be used similarly to a conventional device. That is to say, when the first chamber N1 is opened by pushing a push button (reference mark 22 in Fig.2 ), the pressurized gas in the second chamber N2 press the stock solution in the first chamber N1 through the piston 2. Then, the stock solution can be released through the tube 4 and a nozzle or spout of the push button 22.
  • the side wall 11 of the piston 2 is abutted against the lower face of the shoulder 8 of the vessel 1 so as to function as a stopper.
  • the boss 12 might be extended over the side wall 11 so that the boss 12 can be used as a stopper for abutting against the lower end of the valve.
  • the vessel 1 might be made by assembling a curled trunk 7, a bottom 9 and a shoulder produced separately. In such case, the piston 2 can be inserted from a bottom side opening, and the bottom 9 can be fixed by curling to the trunk thereafter.
  • the piston 2 has a cup-like shape which opens upward.
  • shape of the piston is not limited in the dispensing container of the present invention.
  • the piston 2 can be formed to a hollow float. In this case, permeation of the contains through the piston can be sufficiently prevented.
  • the upper plate 13 has a bowl-like shape so as not to interact with the valve when the piston 2 lifts up.
  • the pressurized gas is loaded at the upper side
  • the stock solution is loaded at the lower side chamber N1.
  • the upper side can be a first chamber N1 to be filled with stock solution
  • the lower side can be a second chamber N2 to be filled with pressurized gas.
  • Fig.5 shows an embodiment of a process for producing such dispensing device. This producing process, similarly to the case of Fig.1 , comprises a container-assembling step S1, a pressurized-gas-loaded step S2 and a stock-solution-loading step S3.
  • the dispensing container does not need any tube (4 in Fig.1 ).
  • the piston 2 is inserted with an inverted posture upside down. Therefore, the piston 2 has check valve function to allow flow of fluid from the upper first chamber N1 to the lower second chamber N2, but restrict the flow in the inverse direction.
  • the side wall 11 of the piston can also function as a stopper for securing volume of the second chamber N2.
  • the container-assembling step S1 and the pressurized-gas-loaded step S2 are the same as the case of Fig.1 .
  • the stock solution loading step S3 the stock solution is loaded with setting the container upside down, since the pressurized gas should be moved before the stock solution reach to the second chamber N2. This is different point from the case of Fig.1 .
  • the stock solution loading step S3 in Fig.5 shows a state of half way of the loading.
  • the first chamber N1 is sufficiently filled with stock solution so that the stock solution rather overflow to the second chamber N2.
  • the lower plate 11 of the piston is preferably curved to project upward (downward in step S3) so that the pressurized gas remaining in the first chamber N1 is reduced as far as possible.
  • a piston 2 is employed as a barrier wall.
  • a known deformable inner bag 23 can also be employed as a barrier wall.
  • the inner bag 23 is made of two sheets or films of which peripheries are welded, heat sealed or adhered with each other to form a bag.
  • the inner bag 23 is fixed to a valve 6 having a tubular portion 24 extending downward.
  • the tubular portion 24 is sandwiched between sheets of the inner bag 23.
  • another shape of inner bag can be employed.
  • an inner bag having a periphery or flange around an opening to be crimped on an bead 20 around an opening 5 of the vessel together with a mounting cup 15, can be employed.
  • a mono-film synthetic resin, a laminated film of synthetic resin films, a laminated film of a synthetic resin film and a metal foil, and the like can be used for the sheet of the inner bag 23.
  • a container made of thin metal sheet, for example 0.2-0.4mm in thickness, which is collapsible under pressure, can be employed.
  • the inner bag 23 is provided with a check valve 25 at the upper end thereof.
  • the check valve 25 allows the flow of fluid from the inside of the inner bag 23 (first chamber N1) to the out side (second chamber N2) which is a space between the inner bag 23 and the vessel 1, but does not allow the inverse flow substantially from the out side to the inside. In this case, the flow from the out side to the inside might be in an extent merely to be resisted by the check valve. It is preferable to attach a tube 4 to the tubular portion 24 of the valve 6 so that the stock solution can fill the inner bag 23 gradually from the bottom side thereof.
  • the inner bag 23 is folded along longitudinal lines when the bag is inserted into the vessel 1 and is expanded at the inside of the vessel 1.
  • a container is completely assembled.
  • pressurized gas is loaded from the stem 17 into the first chamber N1 in the inner bag to expand the inner bag, and further the pressurized gas is also loaded in the second chamber N2 between the inner bag 23 and the vessel 1 through the check valve 25.
  • the pressure in the vessel 1 becomes 5-12 kgf/cm 2 for example.
  • the inner bag 23 is not broken.
  • a dispensing container shown in Fig.7 has a check valve 25 at the lower end of the inner bag 23 and is not provided with any tube. Another constructions are the same as that of Fig.6 substantially. In this embodiment, when the stock-solution-loading step S3, the container is kept upside down so that only pressurized gas move to the second chamber N2 through the check valve 25.
  • the check valve 25 can be obtained, for example, by forming a through hole 25b in the side wall of the tubular portion 25a having a closed end, and by fitting an elastically deformable tube 25c around the tubular portion 25a. Beside, a known check valve having a ball urged by a spring can also be employed.
  • the dispensing device assembled as mentioned above is completed at last by mounting a push button or spout on the stem 17.
  • a push button or spout By pushing the push button of the obtained dispensing device B to open the valve 6, the stock solution in the inner bag 23 pressurized by the pressurized gas in the second chamber N2 can be released through the nozzle or the like of the push button.
  • the device since the pressurized gas in the second chamber N2 is sealed by the stock solution in the first chamber N1 by means of "liquid seal", sealing effect is high. Therefore, the device is especially advantageous for a dispensing device in which compressed gas sensitive to leak is used as propellant.
  • the pressurized gas is discharged in order to reduce the inner pressure of a used container for safe abandonment, the good seal function is inconvenient on the contrary. Then, it is preferable to provide a forcibly-connecting-means capable of automatically cancelling the seal function of the barrier wall when the container is used entirely.
  • Fig.8a shows a type of dispensing container in which a first chamber for stock solution under a piston is connected with a valve through a tube.
  • the tube 4 is slightly short such that the lower end 6 of the tube 4 comes out of a boss 12 of the piston 2 when the piston as a barrier wall reaches the bottom. Therefore, when the stock solution is used almost entirely, the second chamber N2 is connected with inside of the tube 4. Then the pressurized gas can be discharged through the valve 6. Therefore, the device can be thrown away safely with reduced inner pressure.
  • the device is preferably provided with a temporary stopping leg 26 such as a coil spring or the like between a bottom 6 of the vessel 1 and a lower plate 10 of the piston 2 such that the piston 6 does not slip out from the tube 4 before loading of pressurized gas.
  • the temporary stopping leg 26 has such strength (repulsing force of spring in this embodiment) that the piston 2 can be prevented from slipping out of the tube 4, and the piston 2 can slip out of the tube 4 by means of pressure of the pressurized gas when the stock solution is used almost entirely by using up the dispensing device.
  • such temporary-stopping leg 26 can be made of a leg or legs extending downward from periphery of the piston, capable of being broken with predetermined compressive force, or the like.
  • Fig.9 shows a dispensing container similar to the dispensing containers of Fig.8a and 8b .
  • the second chamber N2 is connected with the inside of the tube 4.
  • the dispensing container is also preferably provided with a temporary-stopping leg 26.
  • Fig.10 shows another embodiment of forcibly connecting means having a pin or spike 28 fixed at the bottom 9 of the vessel 1 so as to direct upward.
  • the spike 28 can break through the lower plate 10 of the piston 2 to connect the first chamber N1 to the second chamber N2.
  • This embodiment is also preferably provided with a temporary-stopping leg 28 similar to Fig.8a and the like.
  • Beside, another type of forcibly connecting means can be obtained by providing a projection or the like at a trunk, a bottom or a shoulder of the vessel 1.
  • the projection can engage with the piston to deform the piston 2 so as to cancel the seal function of the piston 2.
  • Fig.11a shows one of the embodiments of such type of dispensing container.
  • a first chamber N1 for stock solution is set at the upper side of piston 2, and the trunk of the vessel 1 is provided with a rib or ribs (see Fig.11b ) 29 projecting inward at the upper portion of the trunk.
  • a rib or ribs see Fig.11b
  • seal function is released and the first chamber N1 is connected with the second chamber N2.
  • the piston 2 might be provided with an extending portion 30 at the upper end thereof, which abuts with the shoulder 8 of the vessel 1 and deforms the piston so as to connect the first chamber N1 to the second chamber N2 when the piston 2 lifts to the upper end.
  • Fig.12 shows a type of dispensing container in which stock solution is loaded in the upper side of the piston 2.
  • a valve 6 has a hard tube or tubular portion 24 at the lower side thereof, and a sharp edge 31 is formed at the lower end of the tubular portion 24.
  • a lower plate 10 of the piston 2 has a thin portion 32 to be broken by the sharp edge 31. Therefore, when the piston goes to the upper end, the second chamber N2 is connected with the inside of the tube 4 through the tube 4 piercing through the piston 2.
  • Fig.13 shows a dispensing device having an inner bag 23 and a tube or tubular portion 24 at the lower side of the valve 6.
  • the tubular portion 24 has spikes 33 projecting in the side directions.
  • the inner bag 23 is broken by the spikes 33, and the first chamber N1 is connected with the second chamber N2.
  • a tubular projection with sharp edge at the free end thereof might be employed.
  • the second chamber N2 is directly connected to the inside of the tube 4.
  • Those forcibly connecting means can be applied not only to a dispensing container having a check valve at the upper side of the inner bag 23, but also to a dispensing container having a check valve at the lower side of the inner bag.
  • Fig.14 shows an embodiment of a dispensing container similar to the dispensing container of Fig.2 .
  • This embodiment has a piston 2 provided with a check valve 34, which can function as a forcibly connecting means, at a lower plate 10 thereof.
  • the check valve 34 has a hole 35 through a lower plate 10 of the piston 2, a valve body 36 and a spring 37 for urging the valve body 36 toward the lower plate 10 side.
  • the valve body 36 has a seat 36a for closing the hole 35 from the second chamber N2 side and a shaft 36b projecting to the first chamber N1 side through the hole 35.
  • the check valve 34 functions as a check valve for allowing the flow of fluid from the first chamber N1 to the second chamber N2 in ordinary case.
  • the check valve 34 functions as a forcibly connecting means.
  • Fig.15 shows a dispensing device similar to the dispensing device of Fig.2 .
  • the piston 2 has a lower plate made of a dome-like thin plate projecting upward and deformable in the inverse direction.
  • the piston 2 has a boss 12 projecting downward from the center of the thin plate.
  • the bottom 9 of the vessel 1 is provided with an abutting member 38 at periphery thereof capable of abutting with the lower periphery of the piston 2. Therefore, when the piston reaches the bottom, the lower periphery thereof abuts with the abutting member 38 at the bottom 9 of the vessel 1, and the lower plate 10 is deformed to project downward. Therefore, a gap is generated between the side wall 11 and the trunk 7 of the vessel 1, and the first chamber N1 is connected to the second chamber N2. Therefore, this member is also a forcibly connecting means.
  • Fig.16 through 18 another embodiment of the process for producing a dispensing device of the present invention will be explained.
  • Those embodiments have a step S2A for sucking or discharging pressurized gas from the first chamber N1 after a pressurized-gas-loading step S2 and before a stock-solution-loading step S3, not similar to the above-mentioned producing process.
  • a dispensing container substantially same as Fig.1 is employed. Therefore, if the same stock solution and the same pressurized gas are used, the same dispensing device can be obtained.
  • the left end step S1 in Fig.16 is a step for assembling a container in which a piston 2, a tube 4 and a valve 6 are assembled to a vessel 1 substantially same as Fig.1 .
  • pressurized-gas-loading step S2 for loading pressurized gas into the first chamber N1 through a valve 6 and a tube 4, and further into the second chamber N2, is performed.
  • the pressure of the pressurized gas loaded at the step S2 is higher than the case of Fig.1
  • pressurized-gas-discharging step S2A for discharging the pressurized gas from the first chamber N1 is performed.
  • the pressurized gas can be collected in a bomb for example through a valve by lowering the loading pressure than the pressure in the container.
  • the pressurized gas is safe gas such as air
  • the pressurized gas can be discharged in the atmosphere.
  • the first chamber N1 can be suck with vacuum.
  • the piston 2 goes down by means of pressure of the pressurized gas remaining in the second chamber N2, and the volume of the first chamber N1 becomes about O as shown in the step S2A in the drawing.
  • a stock-solution-loading step S3 for loading stock solution through the valve is performed.
  • This step is the same as the case of Fig.1 .
  • a dispensing device B which is substantially same as the case of Fig.1 is obtained.
  • this embodiment requires an additional pressurized-gas-discharging step S2A in contrast with the case of Fig.1 , there is an advantage that the pressurized gas is not easily blended in the stock solution.
  • merit of the process of this embodiment is further realized for a piston-type dispensing device having a second chamber at lower side and a first chamber at upper side as explained hereinafter.
  • a container-assembling step S1 is performed with using the same vessel 1, piston 2 and valve 6 as the producing process shown in Fig.5 .
  • a pressurized-gas-loading step S2 is performed. Though those steps are the same as the case of Fig.5 , pressure of the pressurized gas is higher.
  • a pressurized-gas-discharging step S2A is performed.
  • the pressurized gas in the first chamber N1 is discharged, and the pressurized gas remains only in the second chamber by means of the check-valve-function of the piston 2.
  • the piston is lifted to the upper end, and the volume of the first chamber N1 becomes about O.
  • step S3 for loading stock solution into the first chamber N1 is performed. It is not necessary to turn the vessel 1 upside down in contrast to the case of Fig.5 , since pressurized gas do not remain in the first chamber. As mentioned above, in the embodiment, step and apparatus for turning over the vessel during process are not required, and process control is simplified greatly.
  • Fig.18 shows an embodiment of process for producing an inner-bag-type double dispensing device, to which the process having a pressurized-gas-discharging step S2A is applied. That is to say, as same as the process of Fig.7 , a step S1 for assembling as inner bag 23 with a check valve at the lower end and a valve 6 to a vessel 1 is performed. Then, a step S2 for loading pressurized gas into the first chamber N1 in the inner bag 23 through the valve 6, and for loading the pressurized gas into the second chamber N2 through the check valve 25 at the same time, is performed.
  • step S2A for discharging the pressurized gas from the first chamber N1 through the valve 6 is performed.
  • the pressurized gas in the second chamber N2 is not discharged by means of the function of the check valve 25, and the pressurized gas still remain only in the second chamber N2. Therefore, the inner bag 23 is folded as same as the initially inserted state (step S1), and volume of the inner bag becomes about O.
  • step S3 stock solution is loaded into the inner bag 23 through the valve 6. In this situation, since no pressurized gas remain in the inner bag 23, it is not necessary to return the vessel 1 upside down.
  • the producing process with pressurized-gas-discharging step can also be applied to the dispensing device having a check valve 25 at the upper side of the inner bag.
  • the check valve 25 is provided at the upper side of the inner bag 23, the process is the same as the process of Fig.18 substantially. Therefore, the process is not shown with drawings.
  • the inner bag 23 used in the producing process of Fig.18 has a flange 40 to be engaged with a bead 20 or curled portion at upper end thereof, which is not similar to the case of Figs.6 and 7 .
  • the inner bag 31 can shrink along longitudinal folding lines which project outward and inward alternately as shown by real line, and the inner bag can be expanded with inner pressure as shown by imaginary lines.
  • Such inner bag 23 can be produced by blow-moulding, for example.
  • the check valve 25 is the same as the case of Figs.6 and 7 substantially, and can be constructed by a tubular projection 42 projecting from the bottom of the inner bag 23 and a tube 43 elastically fit around the projection 42.
  • the tube 43 is made of rubber or the like and is elastically deformable.
  • the tube 43 is preferably engaged with a step portion 44 formed at the lower portion of the projection 42.
  • the tubular projection 42 has a side wall formed with a through hole 45.
  • steps for loading pressurized gas and stock solution are easy, and it is not necessary to provide any excess gas-loading valve.
  • the dispensing container of the present invention By using the dispensing container of the present invention, the above-mentioned process can be easily performed.
  • the dispensing container has a good sealing function of the second chamber filled with pressurized gas.

Landscapes

  • 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)

Claims (20)

  1. Procédé de production d'un dispositif distributeur double :
    en fournissant une paroi de séparation (2), pouvant transmettre la pression, pour séparer l'intérieur d'un récipient (1) en une première chambre (N1) et une seconde chambre (N2), une soupape de distribution (6), un passage (4) pour relier la soupape de distribution (6) à la première chambre (N1), et un moyen (11) à clapet anti-retour autorisant l'écoulement du fluide de la première chambre (N1) vers la seconde chambre (N2) dans le récipient (1) ;
    en chargeant dans la première chambre (N1), depuis la soupape (6) via le passage (4), du gaz sous pression essentiellement insoluble à la solution de stockage, puis en amenant le gaz sous pression vers la seconde chambre via le moyen (11) à clapet anti-retour ;
    et en chargeant dans la première chambre la solution de stockage, depuis la soupape (6) via le passage (4).
  2. Procédé de production selon la revendication 1, selon lequel, à l'étape de chargement de la solution de stockage depuis la soupape (6), le gaz restant dans la première chambre (N1) est amené de manière forcée à la seconde chambre (N2) au moyen d'une solution de stockage chargée dans la première chambre (N1).
  3. Procédé de production selon la revendication 1, selon lequel le gaz restant dans la première chambre (N1) est déchargé via la soupape (6) après l'étape de chargement du gaz ;
    et la solution de stockage est ensuite chargée dans la première chambre (N1).
  4. Procédé de production selon la revendication 1, selon lequel, à l'état de chargement de la solution de stockage dans la première chambre (N1), la solution de stockage est chargée dans une quantité suffisante pour qu'un peu de solution de stockage déborde de la première chambre (N1) vers la seconde chambre (N2).
  5. Contenant à distributeur double, comprenant :
    un récipient sous pression (1) ;
    une soupape de distribution (6) montée sur une ouverture supérieure du récipient (1) ;
    une paroi de séparation (2), pouvant transmettre la pression, pour séparer l'intérieur du récipient en une première chambre (N1) et une seconde chambre (N2) ;
    un passage (4) pour relier la soupape (6) à la première chambre (N1) ;
    et un moyen (11) à clapet anti-retour autorisant le déplacement de gaz de la première chambre (N1) vers la seconde chambre (N2) et empêchant le déplacement en sens inverse.
  6. Contenant distributeur double selon la revendication 5, dans lequel :
    la paroi de séparation est un piston (2) qui sépare l'intérieur du récipient (1) et peut coulisser en direction haut-bas ;
    et le piston (2) est réalisé de manière à fonctionner comme moyen à clapet anti-retour pour permettre le déplacement de gaz de la première chambre (N1) vers la seconde chambre (N2) et pour empêcher le déplacement inverse.
  7. Contenant distributeur double selon la revendication 6, dans lequel :
    la première chambre (N1) est placée sur le côté inférieur du piston (2) ;
    le passage est un tube (4) pour relier la soupape (6) à la première chambre (N1).
  8. Contenant distributeur double selon la revendication 6, dans lequel :
    la première chambre (N1) est placée sur le côté supérieur du piston (2) ;
    et la soupape (6) est directement reliée à la première chambre (N1).
  9. Contenant distributeur double selon la revendication 6, dans lequel la périphérie du piston (2) peut céder élastiquement vers l'intérieur, de sorte que le piston (2) peut fonctionner comme clapet anti-retour.
  10. Contenant distributeur double selon la revendication 6, dans lequel une butée est interposée entre le récipient (1) ou la soupape (6) et le piston (2), de manière à assurer un certain espace d'un volume prédéfini pour la seconde chambre (N2) lorsque le piston (2) se déplace pour diminuer le volume de la seconde chambre (N2).
  11. Contenant distributeur double selon la revendication 10, dans lequel le volume prédéterminé est compris entre 30 et 50% du volume du récipient.
  12. Contenant distributeur double selon la revendication 10, dans lequel la butée est réalisée par une face intérieure du récipient (1) ou une face inférieure de la soupape (6) qui vient en butée contre le piston (2).
  13. Contenant distributeur double selon la revendication 5, dans lequel :
    la paroi de séparation (2) est constituée d'un sac intérieur (23) pliable ou déformable, dont l'intérieur devient la première chambre ;
    et le sac intérieur (23) est doté d'un clapet anti-retour (25).
  14. Contenant distributeur double selon la revendication 13, dans lequel le clapet anti-retour (25) est placé au fond du sac intérieur (23).
  15. Contenant distributeur double selon la revendication 13, dans lequel le clapet anti-retour (25) est placé au sommet du sac intérieur (23) ou en un emplacement proche de la soupape de distribution (6).
  16. Contenant distributeur double selon la revendication 5, comprenant en outre un moyen pour relier de manière forcée la seconde chambre (N2) à la soupape (6) ou à la première chambre (N1) lorsque la paroi de séparation (2) se déplace ou est déformée pour réduire le volume de la première chambre (N1).
  17. Contenant distributeur double selon la revendication 6, comprenant en outre un moyen (28) pour relier de manière forcée la seconde chambre (N2) à la soupape (6) ou à la première chambre (N1) en déformant ou perçant le piston (2), lorsque le piston (2) se déplace pour réduire le volume de la première chambre (N1).
  18. Contenant distributeur double selon la revendication 13, comprenant en outre un moyen de liaison forcée pour relier un côté extérieur du sac intérieur (23) et un côté intérieur du sac intérieur (23) ou la soupape (6) en perçant le sac intérieur (23) lorsque le sac intérieur se contracte ou rétrécit.
  19. Procédé de production d'un dispositif distributeur :
    en chargeant dans la première chambre (N1) du contenant distributeur double selon la revendication 7, depuis la soupape (6) de ce dernier, du gaz sous pression essentiellement insoluble à une solution de stockage ;
    et en chargeant dans la première chambre (N1) une solution de stockage, depuis la soupape (6) via le tube (4), tout en maintenant le contenant dans une position debout tête en bas, afin d'assurer le déplacement du gaz sous pression de la première chambre (N1) vers la seconde chambre (N2).
  20. Procédé de production d'un dispositif distributeur :
    en chargeant dans le sac intérieur (23) du contenant distributeur double selon la revendication 14, depuis la soupape (6) de ce dernier, du gaz sous pression essentiellement insoluble à une solution de stockage ;
    et en chargeant une solution de stockage dans le sac intérieur (23) depuis la soupape (6), tout en maintenant le contenant dans une position debout tête en bas, afin d'assurer le déplacement du gaz sous pression restant dans le sac intérieur (23) vers la seconde chambre (N2) entre le récipient sous pression (1) et le sac intérieur (23).
EP96901550A 1995-03-09 1996-02-02 Procede de production d'un double dispositif pour aerosol et recipient correspondant Expired - Lifetime EP1013566B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP07991895A JP3274948B2 (ja) 1994-07-12 1995-03-09 二重エヤゾール装置の製造法および二重エヤゾール容器
PCT/JP1996/000245 WO1997028068A1 (fr) 1995-03-09 1996-02-02 Procede de production d'un double dispositif pour aerosol et recipient correspondant

Publications (3)

Publication Number Publication Date
EP1013566A1 EP1013566A1 (fr) 2000-06-28
EP1013566A4 EP1013566A4 (fr) 2007-09-26
EP1013566B1 true EP1013566B1 (fr) 2009-01-21

Family

ID=26420904

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Application Number Title Priority Date Filing Date
EP96901550A Expired - Lifetime EP1013566B1 (fr) 1995-03-09 1996-02-02 Procede de production d'un double dispositif pour aerosol et recipient correspondant

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Country Link
EP (1) EP1013566B1 (fr)
WO (1) WO1997028068A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107810143A (zh) * 2015-06-18 2018-03-16 宝洁公司 制造活塞气溶胶分配器的方法

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2829748B1 (fr) * 2001-09-19 2003-12-12 Nestle Sa Procede pour le conditionnement d'un produit pateux et sa distribution a l'etat foisonne
GB2597484A (en) * 2020-07-22 2022-02-02 Innovolo Ltd Aerosol canister

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3273606A (en) * 1966-09-20 Method and apparatus for packaging paint and the like in a pressurized dispensing container
US3103957A (en) * 1962-02-16 1963-09-17 Drew Chem Corp Packaging method for pressurized dispensers
JPS59187571A (ja) * 1983-04-07 1984-10-24 ライオン株式会社 加圧式二重容器の製法
JPH02227157A (ja) * 1989-02-27 1990-09-10 Kyowa Sangyo Kk ピストン内蔵の圧力容器
JP2524924Y2 (ja) * 1990-09-14 1997-02-05 大和製罐株式会社 ピストン内蔵のエアゾール缶
FR2668118B1 (fr) * 1990-10-17 1993-12-24 Valois Procede de conditionnement de produits liquides a pateux en distributeur sous vide, dispositif pour le mettre en óoeuvre et distributeurs ainsi obtenus.
JP2826691B2 (ja) * 1991-12-25 1998-11-18 株式会社タカハシ・プラスチック工業 ピストン内蔵の圧力容器
JP2599663B2 (ja) * 1992-03-06 1997-04-09 アジア金属工業株式会社 内容物吐出容器の内容物の充填方法
WO1995003131A1 (fr) * 1993-07-23 1995-02-02 Unilever Plc Dispositif delivrant un aerosol

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107810143A (zh) * 2015-06-18 2018-03-16 宝洁公司 制造活塞气溶胶分配器的方法

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WO1997028068A1 (fr) 1997-08-07
EP1013566A4 (fr) 2007-09-26
EP1013566A1 (fr) 2000-06-28

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