CN102149627B - Bag-in-container with prepressurized space between inner bag and outer container - Google Patents

Bag-in-container with prepressurized space between inner bag and outer container Download PDF

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Publication number
CN102149627B
CN102149627B CN200980135500.3A CN200980135500A CN102149627B CN 102149627 B CN102149627 B CN 102149627B CN 200980135500 A CN200980135500 A CN 200980135500A CN 102149627 B CN102149627 B CN 102149627B
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Prior art keywords
bag
container
space
gas
fluid
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CN200980135500.3A
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CN102149627A (en
Inventor
D·佩尔斯曼
S·范霍夫
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Anheuser Busch InBev SA
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Anheuser Busch InBev SA
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
    • B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
    • B67D1/00—Apparatus or devices for dispensing beverages on draught
    • B67D1/04—Apparatus utilising compressed air or other gas acting directly or indirectly on beverages in storage containers
    • B67D1/0462—Squeezing collapsible or flexible beverage containers, e.g. bag-in-box containers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
    • B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
    • B67D1/00—Apparatus or devices for dispensing beverages on draught
    • B67D1/08—Details
    • B67D1/0801—Details of beverage containers, e.g. casks, kegs
    • B67D2001/0827—Bags in box
    • B67D2001/0828—Bags in box in pressurised housing

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  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Devices For Dispensing Beverages (AREA)
  • Packages (AREA)

Abstract

Bag-in-container (2) comprising an inner layer (21) forming a bag filled with a fluid (10), said bag being separatable from an outer layer (22) forming the container, and further comprising a mouth (5) fluidly connecting the volume defined by the bag to the atmosphere and separated therefrom by sealing means (1), said container further comprising at least one space vent (3) fluidly connecting the space (24) between inner and outer layers (21) and (22) to the atmosphere, wherein said vent comprises closing means able to control the gas flow between the space (24) and the atmosphere and in that the space (24) contains an amount of gas (V S,i ) at a pressure (P i ) insufficient to compress the bag to drive out more than 80% of the fluid contained therein. The present invention also concerns a kit of parts comprising a bag-in-container as defined above and a dispensing appliance.

Description

Bag-in-container with the precharge space between inner bag and outer container
Invention field
The present invention relates generally to new sending out in distribution formula bag-in-container (dispensing bag-in-container) Exhibition, in particular it relates to bag-in-container, wherein, the distribution being contained in fluid therein passes through to apply to internal bag fluid compression pressure Power is driving.
Background of invention
The physical dimension that bag-in-container depends on outside container is also known as interior pack bottle or interior pack case, considers herein It is a class I liquid I distribution package (liquid dispensing including the whole terms in the meaning of term bag-in-container Packaging), this liquid distribution package comprises outer container and contractile inner bag, and this outer container includes leading to opening of air Mouth mouth, this contractile inner bag is joined to described container.Fluid to be allocated, such as beverage, be accommodated in described bag and The distribution of described fluid can be driven by any one of following technology.
A () is by injecting a gas into the space between inner bag and outer container when dispensed (referring to US-A-3484011, US- A-3450254, US-A-4,330,066 and US-A-4892230；US-A-5301838, US-A-5407629, JP-A- 5213373, JP-A-8001761；EP-A-1356915；US-A-6649121；JP-A-10180853)；
B (), by being stored in gas-pressurized in the space between inner bag and outer container, described space is subsequently sealed (ginseng See GB-A-2184491；EP-A-741088；GB-A-1414329；US-A-4039103；WO2006087462； WO2007085051；WO2007128157；EP-A-105537；EP-A-776834；FR-A-2446128)；
C () passes through to create low pressure in inner bag, therefore fluid is suctioned out bag (referring to EP-A-596142；EP-A- 391817；WO9211187；WO9312013)；
(d) by by resilient sleeve (referring to WO8200780；WO9314987) or mobile member (referring to WO2006068586；WO2007105934) external mechanical stress is applied on bag；
E () is led by by the gas-pressurized inner bag that contacts with fluid to be allocated of injection and using the distribution immersing fluid Pipe；This solution is different from solution before, and reason is that contractile bag is not used as distributing driving instrument, and only As disposable health store tools.
With (b's), the technology (a) defining above has in common that external compression Fluid pressure is applied to inner bag, described stream Body is limited in the space between inner bag and outer container.These solutions are advantageous because gas-pressurized never with Fluid to be allocated contacts and they there is no need for reducing pressure inner bag to suction out the vavuum pump being contained in liquid therein.
In the technology (a) forming in by the space injecting a gas into when dispensed between inner bag and outer container, Zhi Daorong The distribution of the beverage being contained in bag passes through for the startup of gas-pressurized Injection Space just there is superpressure in space, and in theory, When described batch operation is interrupted, superpressure can/should be down to close to zero.The huge advantage that this technology has is：
● outer container does not need high pressure resistant, and generally meets outer container substantially than bag (it is very submissive) to be operated Firmly, and
● in the case that inner bag is together with outer container with the common blowing mould of single blowing operation, between inner bag and outer container Initial (that is, in outer container using front) the volume V in spaceiCan be very little, even zero.
But, the shortcoming of this technology is：
● gas-pressurized is injected described space, if (for example liquefy CO using compression inflator2Cylinder), then need huge And noise big equipment such as pump or compressor, it is expensive, or if using regulating valve between inner pressurd vessel and outer container, It is then more complicated；
● in the case that the fluid in being contained in inner bag is to oxygen sensitive, the unique protection for oxidation therein is The wall of inner pressurd vessel and the wall of outer container, this wall is because economic cause is designed to thin as far as possible；And
● in the case of the bag-in-container of integrally blowing mould, the wall of inner pressurd vessel and the wall of outer container are attached to one another, but It is coarse, during the layering when gas-pressurized passes through the injection of interface (interface), problem can be produced.
On the other hand, gas-pressurized is stored in the space between inner bag and outer container, described space is subsequently sealed Technology (b) solves most of shortcomings of aforementioned techniques, but forms other shortcomings, is characterized in particular in：
● outer container must be high pressure resistant；
● for given bag volume, outer container must be larger, because some of the space between inner bag and outer container rise Beginning volume ViMust be configured to accommodate pressurization (propulsion) gas；
● the pressure in space shrinks with bag and promptly reduces.
Great majority development including storage gas-pressurized in space includes resisting " pressure casing " of high pressure (as quoted from WO9212912).This pressure casing can not be manufactured by integrally blowing mould two-layer preformed member.Some have carried Go out Promethean solution, wherein, CO2By fermenting (EP0314554) or passing through will adsorb on zeolite or activated carbon Gas discharges (EP0569590) and is formed in original place, but the application of these solutions is still restrictive.
Summary of the invention
The present invention propose the technology of solving the problems, such as (a) and (b) both, the original creation of the advantage of set each of which simultaneously Property solution.
In particular it relates to bag-in-container, it includes defining internal layer, described bag and the shape of the bag of filling fluid The outer layer becoming container is separable, and also includes being connected to air and pass through sealing tool the volumetric fluid being defined by bag The mouth separating with air, described container also include by the space fluid between internal layer and outer layer be connected to air at least one Space ventilator mouth.Bag-in-container including this ventilating opening is suitable to including injecting gas-pressurized by described ventilating opening thus by liquid Body evicts the distribution technique of bag from.Liquid also can suctioned out bag thus making the pressure in space and air with bag volume reducing by them Use in the technology of balance, but described ventilating opening is simple hole and does not include patch tool and not can connect to the gas that pressurizes The source of body.In the present invention, the ventilating opening that only can connect to the source of gas-pressurized and must wrap in limit of consideration further Include the patch tool that the gas between space and air can be controlled to flow.The inner bag of the bag-in-container of the present invention and outer appearance Space between device is with pressure PiAmount V of the gas accommodatings,iIt is not enough to compressed bag and be contained in it evicting out of (drive out) In fluid more than 80%.
The invention still further relates to complete component (a kit of parts), it include above-described bag-in-container and for Adjust the device of bag-in-container, and include the external source of distribution ducts and gas-pressurized, this distribution ducts have for by its It is connected to the fastening means of the mouth of bag-in-container, the external source of this gas-pressurized has connection and engagement tool, when needing volume When outer pressure evicts fluid from inner bag, this connection and engagement tool by the external source of this gas-pressurized be connected to ventilating opening and With patch tool cooperation.
In preferred embodiments, when the pressure in space falls below set-point, patch tool is opened.May be selected Ground or concomitantly, when external pressure exceeds set-point than the pressure in space, patch tool is opened.In simpler embodiment party In case, patch tool can be opened by puncturing it when ventilating opening is connected to the external source of gas-pressurized.
Preferably, in the space between inner bag and outer container, the gas of storage is in initial pressure Pi(that is, when inner bag quilt Full of and its accommodate fluid unassigned when), this initial pressure PiIncluding between 0.1 bar and 6.0 bars, preferably 0.1 Between bar and 4.0 bars, most preferably between 0.5 bar and 3.0 bars.Standardized spatial volume Vs,i/VcShould be low as far as possible, Thus minimizing the size of outer container and should be less than 10%, preferably less than 5%, more preferably less than 0.1%, wherein Vs,iIt is Described space start volume (or have pressure be PiGas), and VcIt is the volume of container.Start volume V in spaces,iCan Close to zero, particularly when bag-in-container, by by two polymer preformed members, integrally blowing mould produces, is led Container is caused to be made up of the two separable layers engaging by unsubstantial interface.Integrally the bag-in-container of blowing mould is interior Interface between layer and outer layer generally passes through terminal use and is contained in distribution during the fluid in inner bag through ventilating opening at it Between injection gas and divide.But, layer separation is not always reproducible as desired, and this may result in bag out of control to receive Contracting and the formation of the bag of fluid opened full of the mouth sealing with bag, and therefore lead to the incomplete distribution of fluid.By at end Add the gas of specified rate in space between bag and container before the inclusion that end subscriber starts to distribute inner bag, two layers it Between interface divide in a controlled manner it is ensured that use when bag-in-container smoothly and fully work it is allowed to hold It is contained in being fully allocated of fluid therein.Inner bag fill fluid and space with gas precharge in the case of, any in bag Leakage can promptly be found.So, when importing the gas-pressurized of described amount by interface, at interface or in bag Defective any bag-in-container can promptly tarnish and be dropped.
Bag-in-container according to the present invention can be used in numerous applications, including the fluid for the treatment of, chemicals etc. Distribution.However, it is preferred to application be for distributing beverage, soda or the beverage not having carbonic acid, specifically for soft drink And beer.In many applications, fluid is sensitive possibly for oxidation.By using gas such as CO2Or N2Precharge inner bag Space and outer container between, can obtain the additional benefit of the shelf-life extending fluid, because described gas is formed for wearing Cross the bed course of oxygen diffusion or the barrier of the wall of outer container and the wall of inner bag.
Brief description
Fig. 1 is the cross-sectional view strength of the bag-in-container according to the present invention.
Fig. 2 is pressure drop in the space between the inner bag and outer container of the bag-in-container of precharge when deployed Figure represents.
Fig. 3 is being arranged on distributor (dispensing appliance) above and being ready to use according to the present invention The figure of bag-in-container represents.
Detailed Description Of The Invention
Bag-in-container
Referring now to accompanying drawing 1 it is illustrated that bag-in-container 2, it includes inner bag 21 and outer container 22, and this inner bag 21 fills fluid 10, this outer container 22 is engaged by interface (being not shown) at least at the height of neck region 6.Inner bag 21 is with outward Volume V between container 22s,iSpace 24 be in fluid communication and fill with pressure P with least one ventilating opening 3iIt is stored in initial Spatial volume Vs,iIn a certain amount of precharge gas, it will hereinafter define.Described ventilating opening pass through be suitable to control through The patch tool 4 of gas flowing and the air of ventilating opening 3 separate.If patch tool 4 can be from the envelope stoping any gas flowing Closed position alternately flows through the open position of ventilating opening 3 at least one times to permission gas, then patch tool herein is considered as Control the flowing through ventilating opening 3.Generally present in the bag-in-container of pressurization, simple obstruction or lid are not considered as Control flowing, because its unique function is to open pressurization space with atmospheric sealing.Similarly, being used in bag-in-container Come the hole of pressure in compensation space because of the extraction of the fluid being contained in inner bag when inner bag shrinks by air it is impossible to quilt It is considered to control fluid, because its purpose is to maintain opening.
Patch tool 4 can be valve, and it either manually or automatically can be operated according to the pressure in space 24.May be selected Ground, when being installed to bag-in-container in its corresponding distributor, patch tool 4 can be punctured and open.In this enforcement In scheme, patch tool 4 can be the simple lid being made up of elastomeric material such as rubber.Elastomeric cover or obstruction may include Relatively thin part, thus be easy to it when the pressure differential between space 24 and gas source 103 reaches preset value and puncturing or break. Preferably, ventilating opening 3 and corresponding patch tool 4 are oriented to adjoin mouth 5 and be oriented to coaxial with mouth 5, thus in simplifying The installation (referring to Fig. 3) on distributor for the bag-in-container.
Bag-in-container according to the present invention can be by this area any of method manufacture.But, specifically preferably Manufacturing technology is by the preformed member integrally blowing mould of the preformed member of two stratification or two interconnection with single process steps, ties Fruit produces two-layer container, and wherein, internal layer and outer layer are separated by interface, forms essence before the injection of precharge gas On be zero (Vs=0) spatial volume (referring to US 11/785748-Inbev).Precharge gas is with pressure PiBy ventilating opening 3 Injection open interfacial separation between inner bag and outer container it is ensured that inner bag when deployed more steady and more controlled Shrink and therefore form more reliable product.Integrally the bag-in-container of blowing mould is produced, and defines about 0.5 ± 0.1 The zonal pressure of the superpressure of bar and showing does not have cohesive to rupture between internal layer and outer layer, illustrates precharge gas to be more than The pressure P of 0.5 bariCan be effectively interfacial for opening by the interfacial injection of the bag-in-container of integrally blowing mould Separate.
Interface can be by applying to release on any surface in interior preformed member and outer preformed member or two surfaces Put agent and weaken further, it will form the interface of bag-in-container.Being commercially available and be most suitable for for preformation The material of type part any releasing agent of resistance to blow air temperature, such as the releasing agent (such as Freekote) based on silicon or based on PTFE Can be used.Releasing agent can be applied in before preformed member is loaded in blowing mould unit, or preformed member is applied in pre- place Reason.
For releasing agent application may alternatively or additionally, when blowing mould bag-in-container, meanwhile, when interior preforming When between part and outer preformed member, the preformed member without the air gap is used, used between two preformed members by blowing Pressure fluid part with prevent between internal layer and outer layer be in close contact and therefore prevent between the two layers firm Interfacial formation, interface can be weakened.Between two preformed members, the part of the pressure fluid of injection must be careful to Measurement, so that enough fluids are injected into and form thin fluid cushion between the two layers, but should avoid result in inner bag The air blowing of shortage any excess.Suitable ratio can determine simply by a series of adjustment tests.
Preferred material for the bag-in-container of the present invention is polyester, such as PET, PEN, PTT, PTN；Polyamide, Such as PA6, PA66, PA11, PA12；Polyolefin, such as PE, PP；EVOH；Biodegradable polymer, such as polyethylene glycol Ester (PGAc) and PLA (PLA)；And copolymer and its mixture.If being used for internal layer and outer layer using different materials, Then their optimal blow mold temperature difference each other should be less than about 70 DEG C it is therefore preferable to 40 DEG C, most preferably 10 DEG C, and ideally should have identical blow mold temperature.The temperature of layer can be determined by infrared survey.
For the bag-in-container of integrally blowing mould, at least one ventilating opening 3 is preferably with the shape of wedge, and wide While at the height of its opening, wherein, patch tool 4 is positioned in this place, and penetrate further into change in vessel with it Thinner, until two layer contacts are to form interface at least at the height of neck region.Container may include around bag-in-container Mouth one or more ventilating openings of being evenly distributed of edge.Some ventilating openings are advantageous, because when by described ventilation When mouth blows gas-pressurized, they allow internal layers 21 of bag-in-container 2 and the interface of outer layer 22 more uniformly to depart from.Preferably Ground, preformed member includes two ventilating openings, this two ventilating openings diametrically relative to position open in the mouth edge of vessel. It is highly preferred that three, and most preferably, at least four ventilating openings are opened in the even interval of mouth edge.
Starting gas pressure and spatial volume
Fluid compression power can be applied to the inner bag of bag-in-container, thus going out fluid " extruding " on letter Bag, or：
A () passes through when dispensed gas-pressurized to be injected the space between inner bag and outer container；In this technology, in sky Between initial pressure P in 24iIt is generally zero and so that its start volume Vs,iIt is generally zero；The source of gas-pressurized can be pump Or compressor, or specifically for home devices, can be using inflator (such as liquefaction CO2Cylinder)；Or
B (), by storing pressurized gas in the space between inner bag and outer container, described space is subsequently sealed；At this In individual technology, initial pressure PiWith start volume Vs,iEnough the substantially all of fluid accommodating in bag must be evicted from bag.
As the partly middle explanation at entitled " background of invention ", the cylinder of (or liquefaction) gas of pressurization is quite expensive and prolongs Their working life long is necessarily become the benefit of terminal use.Similarly, it is desired to drive the pump of distribution or the compression of fluid The minimizing of the size of machine is advantageous in terms of the bulkiness of cost, noise and device.
Technology (b) solves these problems whole, because cylinder or compressor are not required for its function.Another On the one hand, it is contained in the initial pressure P of the gas-pressurized in space 24iMust be high to guarantee that enough driving forces can be used for Squeeze out the substantially all of fluid being contained in bag.It is contemplated that when in bag pressure P be equal to or less than make bag deform and Fluid to be allocated is raised to the pressure P required for the peak of distribution ducts0When, do not have more driving forces to can be used to flow Body extrudes output.
It is clear that shrinking and the volume (V of bag with bagB=Vc-Vs) reduce when, in pressurized bag-in-container Pressure P in space 24 reduces.For perfect gas, P=(Pi×Vs,i)/Vs, wherein, subscript i refers to space 24 before use Pressure and volume, and B, C, S respectively finger bag 21, container 22 and space 24.By two of this expression formula all divided by vessel volume Vc, and rearrange, form expression formula：
P=(Pi×(Vs,i/Vc))/(Vs/Vc) (1)
It is graphically represented as pressure P in fig. 2 with relative spatial volume Vs/VcAnd change.Divided in any beverage The start volume of the front space joined is with Vs,i/VcIt is characterized；And compressed bag and by fluid from bag evict from required for minimum pressure by P0Represent, and have the volume in corresponding space, Vs,0/Vc.Due in space 24 inadequate pressure and fail allocated fluid Volume be simple 1-Vs,0/Vc.According to the present invention, in the example representing in fig. 2, it is stored in the precharge in space 24 The initial pressure P of gasiWith volume Vs,iBe enough to distribute only 40% that starting point is contained in the fluid in inner bag, therefore in bag (the 1-V of remaining liqs,0/Vc)=60%.This result is for using technology (b) as defined above, wherein, gas-pressurized quilt Any pressurized bag-in-container being sealed in space 24 is unacceptable.The manufacturer facing this situation should increase Start volume V in space 24s,i, therefore increase the size of container, or the initial pressure increasing the gas of storage in space 24 PiIt is therefore desirable to substantially firmer outer container is to resist the deformation causing due to this pressurization.
The present invention adopts the benefit of the advantage of each in technology (a) as defined above and (b), and it skips them simultaneously Respective defect.In fact, the space 24 of the bag-in-container of the present invention is by with volume Vs,iWith pressure PiThe gas being stored therein in Body precharge, it is not enough to evict the whole fluids accommodating in inner bag from from inner bag.According to the present invention, storage in space 24 Start volume V of precharge gass,iWith pressure PiMake starting point be contained in not more than 80% of the fluid in inner bag can pass through It compresses and is expelled out of (that is, △ V from bags/Vc=((Vs,i-Vs,0)/Vc)≤0.8), preferably between 10% and 70% and More preferably between 25% and 50%.It is used for the remaining content (1-V of inner bags,0/Vc) evict the not included pressure of bag from Power by be connected to ventilating opening 3 and the control with patch tool 4 intercommunication flow through ventilating opening gas gas-pressurized external source 103 There is provided.The external source 103 of gas-pressurized can be pump or compressor or pressurised cylinder (for example, liquefaction CO2Cylinder).
The advantage of this solution is unexpected good.If with Vs,iAnd PiThe starting gas content being characterized is enough The 50% of the initial fluid content of driving such as inner bag, and the external source such as cylinder of the pressurized gas of residual fluid evicts bag from, then For the same system of the precharge not having space 24, the working life of cylinder is double, and has phase for terminal use The saving answered.The bag-in-container fully pressurizeing is compared, the mechanical resistance of outer container and initial pressure PiCube become ratio Example, forms significantly more cheap container, and has corresponding saving for terminal use.
It is desirable that storing start volume V of precharge gass,iShould keep as little as possible, hence for given inner bag Volume for reduce container total size.Preferably, it should be restricted to less than master container volume Vc10%, preferably less than 5%, more preferably less than 1%.Preferably initial pressure PiDepending on some parameters, such as start-up phase is to spatial volume Vs,i/Vc、 The simulation pressure P of system0Mechanical resistance with outer container.As a rule, initial pressure PiIt is included in higher than air Between 0.1 bar and 6.0 bars, preferably between 0.5 bar and 4.0 bars, most preferably between 1.0 bars and 3.0 bars.
In order to produce the bag-in-container according to the present invention, it is any that empty bag-in-container must first pass through this area Perception method production (for example, difference production containers and bag, and bag is inserted container, or it is highly preferred that pass through inner bag and outer container With the common blowing mould of single blow molding operation, as discussed above).Precharge gas and fluid 10 to be allocated must be then directed into Inner bag 21 and space 24, this inner bag 21 and space 24 are sealed respectively.This two operations can be carried out in any order：Or,
● bag 21 be first filled with fluid 10 and subsequent space 24 by through ventilating opening 3 inject gas and pressurized until Reach desired initial pressure PiWith volume Vi；Each in mouth 5 and ventilating opening 3 is respectively in reasonable time sealing tool 1 Seal with patch tool 4 or close, or
● space is first filled with the gas of specified rate, afterwards fluid to be allocated is filled with inner bag 21, therefore compresses empty Between gas in 24, until it reaches desired initial pressure PiWith volume Vi, or
● inner bag 21 is all filled fluid to be allocated and precharge gas together with space 24 respectively.
Distributor
In order to distribute the fluid 10 being contained in inner bag 21, the bag-in-container of the present invention will be installed to distributor On 100, as illustrated in Figure 3.In its installation site, the distribution ducts 105 leading to air at 107 pass through bag-in-container Mouth 5 enters fluid communication with the inside of inner bag 21, and ventilating opening 3 and patch tool 4 collective effect are passed through in the source 103 of gas-pressurized And enter with space 24 and (in figure 3, in order to clearly reason only show a connection of ventilating opening 3) is in fluid communication.Two Individual connection all keeps tight with fastener 109, and this fastener 109 can be advantageously bolt.Pressurized-gas source 103 can be for adding Pressure or the gas of liquefaction, such as CO2Or N2Cylinder, as Fig. 3 represents, or it can be pump or compressor (not shown).Distribution is led Pipe 105 can be provided with tip, when the described end of mouth 5 and distribution ducts 105 enter contact with betwixt create fluidly connect when, this The sealing tool 1 separating the inside of inner bag 21 with air can be torn in tip.
Similarly, patch tool 4 can be broken by the terminal spine being sharpened of conduit 101 and open in space 24 and gas source Create between 103 and be in fluid communication.Selectively, patch tool 4 can be the valve that can connect to conduit 101 end.Control valve 113, 115 can be respectively provided on both distribution ducts 105 and gas conduit 101, thus either manually or automatically dividing when needed Not Kong Zhi the gentle body of fluid flowing.
When deployed, the initial pressure P of the precharge gas storing in space 24iDistribution is contained in inner bag 21 enough Given fluid 10 amount (80% (=△ V of not more than initial fluid contents/Vc)).With the pressure P picture in space 24 Reduce shown in Fig. 2, additional gas-pressurized passes through conduit 101 and ventilating opening 3 is injected into space 24 from gas source 103.From gas The control of body source to the gas flowing in space 24 can be provided by patch tool 4 itself, or selectively, by control instrument such as cloth The pressure valve 115 put between gas source 103 and patch tool 4 provides, and it must be subsequently for example opened by puncturing it. In the former case, patch tool 4 may be adapted to fall below set-point, such as P/P when the pressure in space 240<Beat when 1.2 Open.Selectively, it may be adapted to open when external pressure is by the pressure that set-point is higher than in space 24.In patch tool 4 quilt Puncture in the case of opening, same rule can be applied to control valve 115.

Claims (18)

1. bag-in-container (2), including internal layer (21), described internal layer (21) forms bag, described bag and the shape of filling fluid (10) The outer layer (22) becoming described bag-in-container can separate, and also includes mouth (5), the volume that described mouth (5) will be defined by described bag It is fluidly connected to air and is separated with air by sealing tool (1), described bag-in-container also includes at least one space Ventilating opening (3), the space (24) between internal layer (21) and outer layer (22) is fluidly connected to air by described ventilating opening (3), its It is characterised by, the patch tool of the gas flowing that described ventilating opening includes controlling described space (24) and air between, and The fluid be filled when described bag, being accommodated is unassigned and when not having external pressure source to be connected in described bag-in-container, institute State the pressure (P in superatmospheric power for the space (24)i) under the amount of gas that accommodates be not enough to compress described bag to evict out of appearance Be contained in fluid in described bag more than 80%, wherein said space (24) is in the described pressure (P of superatmospheric poweri) under hold The amount of the described gas received is the start volume (V in described space (24)s,i).
2. bag-in-container according to claim 1, wherein, when the pressure drop in described space (24) is to less than given During value, described patch tool is opened.
3. bag-in-container according to claim 1, wherein, when external pressure exceeds than the pressure in described space (24) During set-point, described patch tool is opened.
4. the bag-in-container according to claim 1 or 2 or 3, wherein, described patch tool can be punctured.
5. the bag-in-container according to claim 1 or 2 or 3, wherein, when described bag is filled, is limited in described sky Between gas in (24) described pressure (Pi) be included in higher than between 0.1 bar of air and 6 bars.
6. the bag-in-container according to claim 1 or 2 or 3, wherein, the described start volume of described space (24) (Vs,i) it is less than master container volume (Vc) 10%.
7. the bag-in-container according to claim 1 or 2 or 3, wherein, the described start volume of described space (24) (Vs,i) it is less than master container volume (Vc) 5%.
8. the bag-in-container according to claim 1 or 2 or 3, wherein, the described start volume of described space (24) (Vs,i) it is less than master container volume (Vc) 1%.
9. the bag-in-container according to claim 1 or 2 or 3, described bag-in-container can pass through will be pre- for two polymer Profiled member integrally blowing mould obtaining.
10. the bag-in-container according to claim 1 or 2 or 3, wherein, the fluid being contained in described bag is beverage.
11. bag-in-container according to claim 1 or 2 or 3, wherein, the fluid being contained in described bag is carbonic acid drink Material or the beverage of fermentation.
12. complete component, described interior including the bag-in-container (2) according to any one of aforementioned claim and cooperation The device of bag-in-container, and include the external source (103) of distribution ducts and gas-pressurized, described distribution ducts have for by institute State the fastening means that distribution ducts are connected to the described mouth (5) of described bag-in-container (2), the external source of described gas-pressurized (103) there is connection and engagement tool (101), when needing additional pressure to evict fluid from described bag, described connection and Engagement tool (101) by the external source (103) of described gas-pressurized be connected to described ventilating opening (3) and with described patch tool (4) coordinate.
13. complete component according to claim 12, wherein, described ventilating opening (3) are connected to described gas-pressurized External source the described connection that coordinates with described patch tool (4) and engagement tool (101) include piercing tool, described puncture work Have and connect for creating the fluid the external source of described gas-pressurized and described space (24) through described ventilating opening (3) Connect, and also include the valve for controlling the gas flowing entering in described space (24).
14. complete component according to claim 12 or 13, wherein, the external source of described gas-pressurized is pressurization or liquid The cylinder of the gas changed.
15. complete component according to claim 12 or 13, wherein, the external source of described gas-pressurized is pressurization or liquid The CO changing2Or N2Cylinder.
16. complete component according to claim 12 or 13, wherein, described distribution ducts (105) are included for controlling stream Go out the valve of the fluid of described bag.
17. complete component according to claim 12 or 13, for the distribution of beverage.
18. complete component according to claim 12 or 13, for the distribution of soft drink or beer.
CN200980135500.3A 2008-09-19 2009-09-15 Bag-in-container with prepressurized space between inner bag and outer container Active CN102149627B (en)

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EP08164706A EP2165968A1 (en) 2008-09-19 2008-09-19 Bag-in-container with prepressurized space between inner bag and outer container
EP08164706.7 2008-09-19
PCT/EP2009/061943 WO2010031764A2 (en) 2008-09-19 2009-09-15 Bag-in-container with prepressurized space between inner bag and outer container

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US20110248035A1 (en) 2011-10-13
BRPI0913560A2 (en) 2016-09-13
EP2165968A1 (en) 2010-03-24
EP2337759A2 (en) 2011-06-29
RU2011111785A (en) 2012-10-27
RU2526690C2 (en) 2014-08-27
AR074253A1 (en) 2011-01-05
WO2010031764A3 (en) 2010-10-07
WO2010031764A2 (en) 2010-03-25
CN102149627A (en) 2011-08-10

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