EP4098569A1 - Procédé de remplissage et système de remplissage destiné à sa mise en uvre - Google Patents

Procédé de remplissage et système de remplissage destiné à sa mise en uvre Download PDF

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Publication number
EP4098569A1
EP4098569A1 EP21177410.4A EP21177410A EP4098569A1 EP 4098569 A1 EP4098569 A1 EP 4098569A1 EP 21177410 A EP21177410 A EP 21177410A EP 4098569 A1 EP4098569 A1 EP 4098569A1
Authority
EP
European Patent Office
Prior art keywords
storage bag
filling
liquid
following additional
liquid reservoir
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.)
Pending
Application number
EP21177410.4A
Other languages
German (de)
English (en)
Inventor
Nadine Hummitzsch
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.)
Aptar Radolfzell GmbH
Original Assignee
Aptar Radolfzell GmbH
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 Aptar Radolfzell GmbH filed Critical Aptar Radolfzell GmbH
Priority to EP21177410.4A priority Critical patent/EP4098569A1/fr
Priority to PCT/EP2022/061737 priority patent/WO2022253503A2/fr
Publication of EP4098569A1 publication Critical patent/EP4098569A1/fr
Pending legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/0005—Components or details
    • B05B11/0097—Means for filling or refilling the sprayer
    • 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
    • B65B3/00—Packaging plastic material, semiliquids, liquids or mixed solids and liquids, in individual containers or receptacles, e.g. bags, sacks, boxes, cartons, cans, or jars
    • 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

Definitions

  • the invention relates to a method for filling a storage bag of a liquid reservoir of a pharmaceutical or cosmetic dispenser and a filling system provided for this purpose.
  • liquid dispensers for liquids are provided with a storage bag.
  • This storage bag is placed within a rigid outer container.
  • the wall of the storage bag isolates it from the air between the storage bag and the outer container. If liquid is discharged from the liquid reservoir, its volume changes and air flows into the outer container. This avoids contact between the liquid and the compensating air entering the liquid reservoir and the associated deterioration in the quality of the liquid.
  • Such storage bags are usually filled after they have already been placed in the outer container. In order to be able to insert them through an opening in the outer container, the storage bags are in a compact state at this point in time, in particular folded or rolled up and possibly provided with a detachable securing band to secure the compact state.
  • the storage bag When filling, the storage bag expands. However, as soon as the filling process is completed and a filling head provided for this purpose is removed from the liquid storage, it can happen that liquid escapes from the storage bag and contaminates the filling system.
  • the object of the invention is to provide a filling method and a corresponding filling system, by means of which the filling can be carried out with little risk of the system becoming soiled.
  • a filling method is primarily proposed in which it is provided that initially the storage bag is converted from a first compact state into a first expanded state by the internal application of excess pressure with a gas and/or by the external application of negative pressure by generating a vacuum or negative pressure.
  • a second compact state of the storage bag which differs from the first compact state, is then produced by now applying negative pressure on the inside and/or by applying excess pressure on the outside with a gas.
  • the storage bag Only when the storage bag has been expanded in this way and then contracted again, starting from the second compact state, is the storage bag filled with liquid.
  • the storage bag again assumes an expanded state.
  • it can be filled with a cosmetic or pharmaceutical liquid or with a technical liquid such as paint or oil or with a food liquid.
  • the proposed method has the effect that the storage bag, after being filled with liquid, only shows a slight tendency to contract again in the direction of its first compact state and in the process to press out liquid through the removal opening of the liquid storage device.
  • the transfer of the storage bag into the gas-expanded state and subsequently into the second compact state preferably takes place by means of inside or outside overpressurization.
  • a vacuum or negative pressure by a vacuum pump is also possible, the generation of the positive pressure is technically simpler.
  • there is no risk here that liquid can reach the pressure source while there is such a risk when using a vacuum pump and should be reduced, for example, by filtration.
  • the expansion of the storage bag takes place in that gas and in particular in that air is fed into the storage bag.
  • the subsequent conversion to the second compact state can take place by evacuating the interior of the storage bag using a vacuum pump.
  • this is technically complex, so that it is preferable for the pressure in a pressure chamber surrounding the storage bag to be increased in order to convert the storage bag into the second compact state. This increase in pressure causes the gas previously contained in the storage bag to be pushed out again through the extraction opening.
  • the transfer of the storage bag from the first compact state to the expanded state and then to the second compact state takes place while the storage bag is already within an outer container of the liquid reservoir. This is expedient since otherwise it is difficult to insert the storage bag, which is already in the second compact state, into the outer container.
  • the arrangement of the storage bag in the outer container during the transfer to the second compact state also offers the advantage that an intermediate area between the outside of the storage bag and an inside of the outer container can be used as a pressure space to generate an overpressure for the purpose of achieving the second compact state .
  • transition into the expanded state is achieved by supplying gas into the storage bag and the subsequent transition into the second compact state by supplying gas in an area surrounding the storage bag, in particular into the pressure chamber formed by the outer container, it is advantageous if a common overpressure source is used for both pressure increases.
  • This overpressure source can be in the form of a pump, for example.
  • a valve control device is preferably used, which can be switched between supplying the interior of the storage bag and an area surrounding the storage bag.
  • the bag opening of the storage bag is assigned a valve, it is provided that this is opened during filling, for example by a lance provided at the filling station, which mechanically forces the valve to open when the filling head of the filling station is coupled to the liquid storage.
  • the valve reduces the risk of liquid spillage when the storage bag is uncoupled from a fill port.
  • the invention also relates to a filling system for filling a liquid reservoir using in particular the method described.
  • Such a system according to the invention has a filling station which is designed to accommodate a liquid reservoir with a storage bag.
  • the filling station is designed to accommodate a liquid reservoir, which comprises an outer container and a storage bag already inserted therein.
  • a liquid reservoir is positioned at the filling station.
  • the filling station can preferably be moved along a conveyor line together with other filling stations, so that the liquid reservoirs positioned here can be filled one after the other.
  • the system To fill the storage bag, the system has a filling head which is designed to be relatively displaceable relative to the filling station and the storage bag placed there for the purpose of coupling to the storage bag or to the liquid storage with outer container and inserted storage bag.
  • This filling head is preferably connected to a liquid supply, in particular to a liquid reservoir, from which liquid can be conveyed to the filling head by means of a pump.
  • the filling head is connected to an overpressure source, for example to a pump device, by means of which gas, in particular air, can be introduced into the storage bag coupled to the filling head.
  • an overpressure source for example to a pump device, by means of which gas, in particular air, can be introduced into the storage bag coupled to the filling head.
  • gas can first be fed into the storage bag via the removal opening of the liquid storage unit in order to achieve the expanded state.
  • the storage bag can then be evacuated by a vacuum pump of the filling system generating a negative pressure, which removes the gas from the storage bag again.
  • this evacuation preferably takes place in the manner already described above by supplying gas to an area surrounding the liquid bag and thereby generating an overpressure which compresses the storage bag again and thus produces the second compact state.
  • This environment is particularly preferably formed by an interior space of the outer container, with the filling head in this case being designed to be able to pressurize this interior space of the outer container, which acts as a pressure chamber, in an isolated manner.
  • the filling head can in particular have a coupling contour on the filling head, which is in contact with the liquid reservoir and is suitable for defining two isolated pressure areas together with the liquid reservoir.
  • the coupling contour particularly preferably has two circumferential and preferably concentric sealing surfaces, with an area between the circumferential sealing surfaces defining a pressure area which is connected to the outer container in a communicating manner, and with an area inside the inner of the two sealing surfaces defining a second pressure area which is connected to the Storage bag is communicatively connected.
  • the overpressure source can be assigned a switching valve device.
  • This switching valve device allows switching between a first switching state, in which the overpressure source is connected to the storage bag, and a second switching state, in which the overpressure source is connected to the storage bag surrounding pressure space is connected.
  • an overpressure source for example in the form of a pump device, can continuously provide a gas supply that first expands the storage bag and then compresses it again.
  • Figures 1 to 8 show an example of the sequence of the method according to the invention for filling liquid reservoirs.
  • the main components of the filling system used for this purpose and the liquid reservoir to be filled are based on the 1 explained.
  • the liquid reservoir 10 to be filled for this purpose is intended to be connected to a discharge head in the filled state and to form a liquid dispenser together with this discharge head.
  • a discharge head can in particular have a pump device, by means of which the liquid is conveyed to a discharge opening.
  • the liquid reservoir can also be designed as a pressure reservoir, in the outer container of which a pressurized gas or a propellant is arranged.
  • the discharge head or the liquid reservoir can have an outlet valve, which is opened for the purpose of discharge, instead of a pump device.
  • the liquid reservoir has a rigid outer container 30 made of plastic or metal. This has an opening flange 32 into which an insert 34 with a removal opening 36 is inserted.
  • a storage bag 40 is arranged in the outer container 30 to hold the liquid. This is connected to the removal opening 36 .
  • An intermediate area between the outer container and The storage bag 40 is connected to an ambient atmosphere via ventilation openings 38 in the insert 34 during operation of the liquid dispenser.
  • the use of the storage bag prevents the liquid from coming into contact with air before it is discharged.
  • the method according to the invention starts from an initial state in which the storage bag 40 is initially in a first compact state, for example wound or folded along fold edges 46 .
  • a first compact state for example wound or folded along fold edges 46 .
  • the introduction of the storage bag 40 through the opening flange 32 of the outer container 30 is possible without any problems.
  • the liquid reservoir 10 with the storage bag 40 in its first compact state is positioned below a fill head 120 .
  • This filling head 120 has a coupling piece 130 whose shape is adapted to the liquid reservoir 10 .
  • This coupling piece 130 has an outer contact ring 131 and an inner contact ring 132 for sealing contact with the liquid reservoir 10 .
  • a region between the abutment rings 131, 132 is connected to a first gas connection 134 of the filling head 120.
  • the inner contact ring 132 forms a connection for coupling to the removal opening 36 and thus to the storage bag 40.
  • This connection is connected to a second gas connection 136 of the filling head 120 and via a line 182 to a liquid reservoir 180.
  • the second gas connection 134 can be closed with respect to the connection by means of a slide valve 126 .
  • the slide valve 126 is closed against the force of a return spring 124 by displacement of the filling head 120 with respect to a carrier 122 .
  • the filling system has an overpressure source 140 in the form of a gas cylinder, by means of which gas, in particular air, is placed under overpressure in a pressure chamber 144 by a piston 142 .
  • the pressure chamber 144 has an inlet and an outlet which are provided with check valves 146, 148, respectively.
  • a gas line 152 leading to a valve device 150 is connected to the outlet.
  • the valve device 150 is connected to the gas connections 134, 136 of the filling head 120 by means of two gas lines 154, 156.
  • an outlet 158 is provided on the valve device 150 .
  • the valve device 150 makes it possible to selectively couple the gas line 154 and thus the gas connection 134 or the gas line 156 and thus the gas connection 136 to the overpressure source 140 .
  • the outlet 158 is in each case connected to the other gas line and the other gas connection.
  • FIG. 1 shows the initial state in which the liquid reservoir 10 is positioned below the filling head 120.
  • the gas connection 134 is connected via the ventilation openings 38 in the insert 34 to the intermediate space 60 between the inside of the outer container 30 on the one hand and the outside of the storage bag 40 .
  • the gas port 136 is connected to the interior of the storage bag 40 .
  • FIG 3 shown manner to the fact that the piston 142 is displaced in the gas cylinder 140 and the air in the pressure chamber 144 is pressurized.
  • the air flows according to the arrows 2, 3 through the line 152 and 156 to the gas connection 136 and into the storage bag 40.
  • This is thereby converted into a first expanded state.
  • a gas volume is preferably fed into the storage bag 40 which corresponds to at least 50% of its maximum volume, particularly preferably at least 80% of the maximum volume.
  • the wall of the storage bag 40 is stretched, particularly in the area of the folded edges 46 . Air outside the storage bag 40 is discharged following the arrows 4, 5 while the storage bag 40 is being filled with gas.
  • valve device 150 is then switched so that the line 154 is now connected to the line 152 and the gas cylinder 140 .
  • the line 156 is connected to the outlet 158 .
  • the continued reduction in size of the pressure chamber 144 now leads to air being conducted into the pressure space 60 on the outside of the storage bag 40 , as illustrated by arrow 7 .
  • the storage bag 40 is thereby in the in 4 compressed again in the manner shown, with the air in the way indicated by arrow 6 escapes.
  • the storage bag does not return to the original folded state 1 back, but in a second compact state.
  • the original folded edges 46 are no longer in the same position relative to one another as they were in the original first compact state.
  • the fold edges lose part of their tendency to recover as a result of the stretching during the expansion and the changed relative position in the second compact state.
  • the piston 142 When the filling is complete, the piston 142 is moved upwards again like the piston rod, as illustrated by arrow 9 .
  • the slide valve 126 of the filling head 120 first opens again and the pressure chamber 144 is enlarged again while air is sucked in. If an overpressure still existed in the pressure chamber 60, it is reduced in this phase.
  • the filling head 120 is then lifted again from the now filled liquid reservoir, so that the next liquid reservoir 10 can then be placed under the filling head 120 for filling.
  • a single actuator 160 is able to bring about the respectively required relative movements of piston 142 and gas cylinder 140 as well as carrier 122 and filling head 120 .
  • the actuator merely moves the filling head 120 while the valve 126 is opened and closed by means of a separate actuator and/or while another actuator is also used to generate pressure from the overpressure source 140 . It would also be possible to provide only one actuator which drives a plurality of filling heads 120, for example in the manner of a linear or rotary drive, by means of which a plurality of piston rods of pistons 142 are displaced along a cam which causes the displacement described.
  • a different variant of the liquid reservoir 10 is shown, which differs from the variant of Figures 1 to 8 differs in that the removal opening 36 of the liquid reservoir 10 is provided with a valve 37 which closes in the event of excess pressure in the liquid reservoir and thus prevents discharge as long as it is not opened mechanically.
  • the valve is automatically opened mechanically by a hollow lance 137 when the filling head 120 couples to the liquid reservoir 10. It closes again when the filling head moves away from the liquid reservoir 10 .
  • the hollow lance 137 is fixed in place on the slide valve 126 of the carrier.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Basic Packing Technique (AREA)
EP21177410.4A 2021-06-02 2021-06-02 Procédé de remplissage et système de remplissage destiné à sa mise en uvre Pending EP4098569A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP21177410.4A EP4098569A1 (fr) 2021-06-02 2021-06-02 Procédé de remplissage et système de remplissage destiné à sa mise en uvre
PCT/EP2022/061737 WO2022253503A2 (fr) 2021-06-02 2022-05-02 Procédé de remplissage et installation de remplissage pour sa mise en œuvre

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP21177410.4A EP4098569A1 (fr) 2021-06-02 2021-06-02 Procédé de remplissage et système de remplissage destiné à sa mise en uvre

Publications (1)

Publication Number Publication Date
EP4098569A1 true EP4098569A1 (fr) 2022-12-07

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP21177410.4A Pending EP4098569A1 (fr) 2021-06-02 2021-06-02 Procédé de remplissage et système de remplissage destiné à sa mise en uvre

Country Status (2)

Country Link
EP (1) EP4098569A1 (fr)
WO (1) WO2022253503A2 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3805001A1 (de) * 1987-02-25 1988-09-08 Richard Friedrich Verfahren zum fuellen eines behaeltnisses, vorrichtung hierzu und verfahren zu ihrem betrieb
DE3923903A1 (de) * 1989-07-19 1991-01-24 Hirsch Anton Verfahren zur befuellung von druckgaspackungen sowie druckgaspackung
DE69211540T2 (de) * 1991-01-15 1997-01-30 Pentti Turunen Vorrichtung zum gebrauch von aerosolen und aerosolverpackungen
WO2012149917A1 (fr) * 2011-05-05 2012-11-08 Leibinger Smb Technik Gmbh Procédé pour remplir un récipient avec un liquide
US20140069916A1 (en) * 2011-05-02 2014-03-13 Deutsche Aerosol Gmbh Bag Intended For Being Applied In An External Container For Forming A Pressure Vessel With Two Separate Compartments, Pressure Vessel And Series Of Pressure Vessels Having Diverse Dimensions Fabricated With Such A Bag, As Well As Method For Fabricating Such A Series Of Pressure Vessels
EP2709914B1 (fr) * 2011-05-16 2016-02-03 The Gillette Company Appareil de mise sous pression et d'étanchéification de récipient et procédés de mise sous pression de récipients

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3805001A1 (de) * 1987-02-25 1988-09-08 Richard Friedrich Verfahren zum fuellen eines behaeltnisses, vorrichtung hierzu und verfahren zu ihrem betrieb
DE3923903A1 (de) * 1989-07-19 1991-01-24 Hirsch Anton Verfahren zur befuellung von druckgaspackungen sowie druckgaspackung
DE69211540T2 (de) * 1991-01-15 1997-01-30 Pentti Turunen Vorrichtung zum gebrauch von aerosolen und aerosolverpackungen
US20140069916A1 (en) * 2011-05-02 2014-03-13 Deutsche Aerosol Gmbh Bag Intended For Being Applied In An External Container For Forming A Pressure Vessel With Two Separate Compartments, Pressure Vessel And Series Of Pressure Vessels Having Diverse Dimensions Fabricated With Such A Bag, As Well As Method For Fabricating Such A Series Of Pressure Vessels
WO2012149917A1 (fr) * 2011-05-05 2012-11-08 Leibinger Smb Technik Gmbh Procédé pour remplir un récipient avec un liquide
EP2709914B1 (fr) * 2011-05-16 2016-02-03 The Gillette Company Appareil de mise sous pression et d'étanchéification de récipient et procédés de mise sous pression de récipients

Also Published As

Publication number Publication date
WO2022253503A3 (fr) 2023-01-26
WO2022253503A2 (fr) 2022-12-08

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