CN1520372B - Sealed flexible cartridge - Google Patents

Sealed flexible cartridge Download PDF

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Publication number
CN1520372B
CN1520372B CN028129423A CN02812942A CN1520372B CN 1520372 B CN1520372 B CN 1520372B CN 028129423 A CN028129423 A CN 028129423A CN 02812942 A CN02812942 A CN 02812942A CN 1520372 B CN1520372 B CN 1520372B
Authority
CN
China
Prior art keywords
sheet material
sheet
filter paper
coffee
woven fabric
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 - Fee Related
Application number
CN028129423A
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Chinese (zh)
Other versions
CN1520372A (en
Inventor
A·约尔金
P·马塞克
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.)
Societe des Produits Nestle SA
Nestle SA
Original Assignee
Societe des Produits Nestle SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Societe des Produits Nestle SA filed Critical Societe des Produits Nestle SA
Publication of CN1520372A publication Critical patent/CN1520372A/en
Application granted granted Critical
Publication of CN1520372B publication Critical patent/CN1520372B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D85/00—Containers, packaging elements or packages, specially adapted for particular articles or materials
    • B65D85/70—Containers, packaging elements or packages, specially adapted for particular articles or materials for materials not otherwise provided for
    • B65D85/804—Disposable containers or packages with contents which are mixed, infused or dissolved in situ, i.e. without having been previously removed from the package
    • B65D85/8043—Packages adapted to allow liquid to pass through the contents
    • B65D85/8046—Pods, i.e. closed containers made only of filter paper or similar material

Abstract

The present invention relates to a sealed flexible cartridge (1) , designed to be extracted under pressure, containing a substance for the preparation of a beverage, consisting of a first (3) and a second sheet (4) of circular, oval or polygonal shape which leave between them a space for the substance (2) and are welded together around their periphery (5), the first sheet (3) being made of a material chosen from filter paper, a non-woven and a semi-rigid material and the second sheet (4) being made of a material chosen from filter paper, a non-woven and a composite, in which the first sheet is such that it allows water at atmospheric pressure to pass through it or by piercing with a piercing means and the second sheet (4) is such that it allows water to pass through it only if an overpressure of between 0.1 and 3 bar is achieved during extraction from the said cartridge (1).

Description

The leak free flexible pouch
Technical field
The present invention relates to a kind of leak free flexible pouch, it is designed to take out under pressure, and comprise the material that is used to prepare beverage, this material is selected from baking and grinds coffee, soluble coffee, grind the compound of coffee and soluble coffee, chocolate product or other dehydration consumption materials, this flexible pouch comprises circle, oval or polygonal first and second sheet materials, between first and second sheet materials, leave the space that is used for this material, and they are around its peripheral weld together, first sheet material is by being selected from filter paper, the material of non-woven fabric and semi-rigid material is made, and second sheet material is by being selected from filter paper, non-woven fabric and complex are made.
Background technology
The sealing bag that the effect unlatching that utilizes the pressure rising has been arranged on the market.Patent EP 512468 relates to this bag: the problem of this bag be they need tear bag the top the band point withdrawing device and make the bag bottom open to make coffee flow into the recess of cup thus and lift element.Same existence for example forms the bag of being made by filter paper of the theme of patent EP 272432: the problem of these bags is that water flows into the coffee bottom too quickly, and pressure raises not significantly, causes and does not stay a large amount of foams on the coffee.
Summary of the invention
The objective of the invention is to make the user to obtain a kind of bag, it needs cheap and simple device to take out this bag, thereby leaves the measured foam of a large amount of matter on coffee.
The invention still further relates to a kind of leak free flexible pouch, it is designed to take out under pressure, and comprise the material that is used to prepare beverage, this material is selected from baking and grinds coffee, soluble coffee, grind the compound of coffee and soluble coffee, chocolate product or other dehydration consumption materials, this flexible pouch comprises circle, oval or polygonal first and second sheet materials, between first and second sheet materials, leave the space that is used for this material, and they are around its peripheral weld together, first sheet material is by being selected from filter paper, the material of non-woven fabric and semi-rigid material is made, and second sheet material is by being selected from filter paper and non-woven fabric is made, wherein first sheet material makes water under atmospheric pressure by wherein or by tear-off device tearing, and second sheet material is made by having the enough filter paper or the non-woven fabric of grid closely, only makes to be pressed under the situation between 0.1～3bar water by wherein taking out the mistake that is realized during the described bag.
Therefore the objective of the invention is to obtain a kind of bag, this bag is not similar for the material that will take out that centers between first and second sheet materials.Second sheet material must keep water to make the free moistening and expansion coffee particles of described water: this retarding action helps the taking-up of coffee and produces good foam.The time length of this retarding action will depend on water service pump, that is to say to depend in the bag elevated pressure.Usually, the level that continues a second for the retarding action of 1～3bar overvoltage.Certainly, because pressure raises, bag second sheet material below will need back plate during taking out.
If bag comprises coffee, baking and the coffee that grinds are placed in the bag or compacting simply.The amount of contained coffee can change between 5～10g.
If first sheet material is made by filter paper or non-woven fabric, water will flow by gravitational force into the coffee bottom simply.On the other hand,, will need tear-off device to open described first sheet material, for example adopt patent EP 242556 described devices if first sheet material is made by semi-rigid material.Under the situation of filter paper, use to have 15～30g/m 2The paper of thickness between gram number and the 0.1～1mm.Under the situation of non-woven fabric, use to have 20～100g/m 2Polypropylene, polyethylene, polyethylene terephthalate or the polyurethane of gram number.Under the situation of semi-rigid material, used thickness be 20～100 microns aluminium, randomly have the single or multiple lift plastics of the oxygen barrier layers of EVOH for example or PVDC, randomly have for example cardboard, aluminium, plastics or the cardboard of the oxygen barrier layers of EVOH for example or PVDC, a multilayer film of plastics.
In first embodiment, second sheet material comprises the weakness zone of unlatching when the bag internal pressure reaches value between 0.1～3bar.The expression mode of " weakness zone " is understood as preform region.These zones are filter paper, non-woven fabric or even plastic sheet equally.
In a second embodiment, second sheet material is made by having the enough filter paper or the non-woven fabric of grid closely, so that only make water pass through wherein when the pressure that reaches between 0.1～3bar.The durchgriff that the expression mode of " enough grid " closely is understood as air or water is low.
In these two embodiment, first sheet material can be made or be made by semi-rigid material by filter paper and non-woven fabric.In both cases, bag must have outer packaging, and this is because it is not packaged in the material that forms oxygen barrier layers.
In the 3rd embodiment, second sheet material is aluminium/plastics complex.The expression mode of " aluminium/plastics complex " is understood as the aluminum sheet that its top has prefabricated plastic sheet.In this case, if first sheet material is filter paper or non-woven fabric, will need outer packaging.On the other hand, if first sheet material is made by semi-rigid material, will not need outer packaging, this is because aluminium/plastic layer is prevented passing through of block.
In the 4th embodiment, second sheet material comprise the lid that can remove and under the pressure between 0.1～3bar, make water by wherein and by filter paper or non-woven fabric make the layer.Under one situation of back, do not need outer packaging.
In the 5th embodiment, second sheet material is made by filter paper that is coated with enamelled coating or non-woven fabric.
In the 6th embodiment, second sheet material is by making through the hot-cured non-woven fabric.
Description of drawings
To provide other explanations with reference to the accompanying drawings, in the accompanying drawing:
Fig. 1 and 2 be bag of the present invention first and second embodiment schematically illustrate figure;
Fig. 3 is the figure that schematically illustrates of one of two first embodiment of bag;
Fig. 4 is the figure that schematically illustrates according to the 3rd embodiment; And
Fig. 5 is the figure that schematically illustrates according to the 4th embodiment.
The specific embodiment
In the bag 1 of Fig. 1, baking and the coffee 2 that grinds be packaged in first sheet material 3 made by filter paper and second sheet material 4 made by filter paper equally between.Two sheet materials center on the periphery of described bag at 5 place's weld togethers.First sheet material makes water under atmospheric pressure pass through wherein, and second sheet material of being made by filter paper equally comprises weakness zone, it is well moistening to make that during taking out coffee at first carries out, and then expands well and liquid coffee flows out when only reaching the overvoltage of 1bar grade in described bag.Therefore produce retarding action during coffee passes through, this causes coffee to leave a large amount of special quality foams.By this bag, can use extraction system without any cusp, this system has the device that holds this bag and realize taking out in the mode of excellent sealing simply.
Fig. 2 is illustrated in to pack between two sheet materials being made by non-woven fabric the bag 6 that grinds with roasted coffee 7.First sheet material 8 is made by non-woven fabric, and it makes water under atmospheric pressure by wherein.Second sheet material 9 is made by the non-woven fabric with tight grid, makes that water passed through wherein when the interior overvoltage of bag reached 1bar.Two sheet materials center on its periphery at 10 place's weld togethers.Can use identical extraction system for the fwd bag.
Under the situation of Fig. 3, bag 11 comprises first sheet material of being made by the semi-rigid material of aluminium 12 and second sheet material of being made by filter paper 13.Baking and the coffee 14 that grinds are placed between these two sheet materials.These sheet materials are around its peripheral 15 weld togethers.From then on take out in the bag for this reason, need needle-penetration first sheet material, this pin for example forms the theme of patent EP 242 556.The sheet material of being made by filter paper makes that coffee passed through wherein when overvoltage reached the 1ba grade in the bag during taking out.
Fig. 4 represents the bag 16 according to the 3rd embodiment.Grind and roasted coffee 17 is packaged in rigidity made of aluminum first sheet material 18 and the complex that forms by aluminum sheet 19 and prefabricated plastic sheet 20 between.Sheet material 19 and 20 is welded on the sheet material 18 at 21 places.In order to tear sheet material 18, need be according to the described pin of EP patent.Sheet material 19 has makes it not have the thickness of mechanical strength: its effect is an oxygen barrier layers.Sheet material 20 is opened when overvoltage reaches 1bar in bag.The advantage of this solution do not need to be outer packaging.
Fig. 5 represents the bag 22 among the 4th embodiment.Grind and the coffee 24 of baking is packaged in rigid sheet 23 and by filter paper layers 25 with cover between 26 second sheet materials that form. Sheet material 25 and 26 is welded on the sheet material 23 at 27 places.In order to take out, to remove and cover 26 and described bag is placed in the patent EP 242 556 described devices.Equally in this case, do not need to provide outer packaging.
Abbreviation:
The PVDC=polyvinylidene chloride;
EVOH=ethylene/vinyl alcohol copolymer.

Claims (5)

1. leak free flexible pouch, it is designed to take out under pressure, and comprise the material that is used to prepare beverage, this material is selected from baking and grinds coffee, soluble coffee, grind the compound of coffee and soluble coffee, chocolate product or other dehydration consumption materials, this flexible pouch comprises circle, oval or polygonal first and second sheet materials, between first and second sheet materials, leave the space that is used for this material, and they are around its peripheral weld together, first sheet material is by being selected from filter paper, the material of non-woven fabric and semi-rigid material is made, and second sheet material is by being selected from filter paper and non-woven fabric is made
It is characterized in that,
First sheet material makes water under atmospheric pressure by wherein or by tear-off device tearing,
The mistake that second sheet material is only realized during taking out is pressed under the situation between 0.1～3bar and makes water pass through wherein, to produce the retarding action that allows beverage to pass through;
Second sheet material is made by having the enough filter paper or the non-woven fabric of grid closely, so that only make water pass through wherein when the pressure that reaches between 0.1～3bar.
2. sealing bag as claimed in claim 1 is characterized in that second sheet material comprises the lid that can remove.
3. sealing bag as claimed in claim 1 is characterized in that the filter paper of first sheet material has 15～30g/m 2Thickness between gram number and the 0.1～1mm.
4. sealing bag as claimed in claim 1 is characterized in that second sheet material is coated with one deck enamelled coating.
5. sealing bag as claimed in claim 1 is characterized in that, second sheet material is through the hot-cured non-woven fabric.
CN028129423A 2001-06-28 2002-05-07 Sealed flexible cartridge Expired - Fee Related CN1520372B (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP01115806A EP1273528B1 (en) 2001-06-28 2001-06-28 Soft closed capsule
EP01115806.0 2001-06-28
PCT/EP2002/005064 WO2003002423A1 (en) 2001-06-28 2002-05-07 Sealed flexible cartridge

Publications (2)

Publication Number Publication Date
CN1520372A CN1520372A (en) 2004-08-11
CN1520372B true CN1520372B (en) 2011-06-15

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN028129423A Expired - Fee Related CN1520372B (en) 2001-06-28 2002-05-07 Sealed flexible cartridge

Country Status (19)

Country Link
US (1) US20040115310A1 (en)
EP (1) EP1273528B1 (en)
JP (1) JP3896114B2 (en)
CN (1) CN1520372B (en)
AR (1) AR034662A1 (en)
AT (1) ATE310683T1 (en)
AU (1) AU2002344962B2 (en)
BR (1) BR0210662A (en)
CA (1) CA2450701A1 (en)
DE (1) DE60115221T2 (en)
DK (1) DK1273528T3 (en)
ES (1) ES2252113T3 (en)
MX (1) MXPA03011894A (en)
NO (1) NO20035734L (en)
NZ (1) NZ530769A (en)
RU (1) RU2291092C2 (en)
TW (1) TW590966B (en)
WO (1) WO2003002423A1 (en)
ZA (1) ZA200400653B (en)

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RU2004102208A (en) 2005-02-27
JP3896114B2 (en) 2007-03-22
CN1520372A (en) 2004-08-11
DK1273528T3 (en) 2006-03-27
NO20035734L (en) 2004-02-20
DE60115221D1 (en) 2005-12-29
US20040115310A1 (en) 2004-06-17
ZA200400653B (en) 2005-01-27
CA2450701A1 (en) 2003-01-09
ATE310683T1 (en) 2005-12-15
AR034662A1 (en) 2004-03-03
RU2291092C2 (en) 2007-01-10
TW590966B (en) 2004-06-11
ES2252113T3 (en) 2006-05-16
EP1273528A1 (en) 2003-01-08
EP1273528B1 (en) 2005-11-23
BR0210662A (en) 2004-10-05
DE60115221T2 (en) 2006-07-20
NO20035734D0 (en) 2003-12-19
WO2003002423A1 (en) 2003-01-09
NZ530769A (en) 2006-12-22
JP2004533305A (en) 2004-11-04
AU2002344962B2 (en) 2008-01-03
MXPA03011894A (en) 2004-03-26

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