CN103687794B - Airtight container and using method thereof - Google Patents

Abstract

The invention provides a kind of container, described container comprises: (a) covering, and described covering comprises at least one elastomer layer; (b) be contained in the food component in described container, wherein said food component is liquid food component or solid food component, and wherein said solid food component is constructed to produce slop product in the time contacting with liquid further; And wherein said covering is constructed to be pierced through to inject or extract by least one liquid transfer device described liquid food component or described slop product, and further wherein, when recall described at least one liquid transfer device from described container, described covering is constructed to reseal himself to prevent any the seepage in described liquid, liquid food component, slop product or their combination. The present invention also provides a kind of container that comprises plunger and spring. The invention provides the method that uses said vesse.

Description

Airtight container and using method thereof

Technical field

The present invention relates to accommodate liquid food component or solid food component so that fluid is being injected to containerTime produce the airtight container of slop product. The invention still further relates to and there is covering and recalling preventingThe airtight container of liquid food component or liquid food products seepage when liquid transfer device.

Background technology

Accommodate for the preparation of food product and (cure coffee, tealeaves, instant coffee, grind such as grindingThe esculent of the mixture of grinding coffee and instant coffee, chocolate-based product or any other dehydrationMatter) the airtight container of material be known. In some cases, airtight container have band bottom andSidewall and diameter are greater than the vessel of the ring edge of described bottom, and are soldered to the limit of described vesselThe covering of the periphery of edge, wherein covering is made up of flexible material oxygen to hypotonicity,Described flexible material is selected from aluminium, aluminium/plastic composite, aluminium/plastic/paper and opens compound, pure or multilayerPlastics. These airtight containers use with the configuration that wherein covering is pierced conventionally.

The content of some airtight containers extracts in the following ways. Container is inserted to pan straddle and insertsEnter to extract cage. This extraction cage comprises the pin that pierces through container top and bottom. Fluid (being generally water) is logicalCross front needle and inject, and food product is discharged by the portion of piercing through of container bottom. In the extraction of this typeWhen end, can from extraction system, remove container, to place next container therein. Container quiltAfter removing, vessel bottom can exist and pierce through portion or hole, and this hole allows remaining liquid food products and solidBody food component spills. This seepage can cause a problem, and it can make a part for extraction machine becomeDirty. Or, by liquid injecting container, when pressure gathers and causes rupture disk to break, available pinOr some other liquid transfer devices pierce through the covering of container, thus extracting liquid, liquid food groupDivide and/or slop product.

In order to overcome the leakage problems of aforementioned airtight container, some airtight containers comprise device in bottom layerWare, provides the device that ensures to keep solid food component in the time that container is opened or break in these vessel.In the airtight container of these types, ensure to keep the device of solid food component be selected from fabric, valve andFoam, and this device is set to bonding with adhesive method or is sealed to the bottom of box.

Summary of the invention

The invention provides the airtight container that a kind of its covering can be pierced, this container also provides simultaneouslyThe controllable release of container contents.

In certain embodiments, container disclosed in this invention comprises: (a) covering, this coveringComprise at least one elastomer layer; (b) be contained in the food component in container, wherein food componentFor liquid food component or solid food component, and further wherein solid food component be constructedFor produce slop product in the time contacting with liquid; And wherein covering is constructed to by least oneIndividual liquid transfer device pierces through to inject or extracting liquid food component or slop product, and entersWherein, when be withdrawn into a few liquid transfer device from container, covering is constructed attaches most importance on one step groundNovel sealing himself to reduce or to prevent liquid, liquid food component, slop product or theyThe seepage of any in combination. Container disclosed in this invention also can comprise (c) block piece, this resistanceThe contiguous food component of block piece is installed on container and is substantially to see through food component, to useIn food component is remained in container. In certain embodiments, block piece comprises at least one elasticityBody layer. In certain embodiments, the material that elastomer layer comprises is selected from least one in following materialMaterial: silicon rubber, synthetic rubber, fluoropolymer rubber, olefin type elastomer, acrylic compounds bulletGonosome, polyester elastomer, polyurethane elastomer, and their combination.

Due to for liquid transfer device, must be with the liquid transfer device travel distance thorn of being scheduled toWear covering, therefore, maybe advantageously strengthen elastomer layer with firmization layer. This type of layer can be thinFilm, the polyethylene of for example biaxial orientation or polypropylene, or injection moulding film. Also can in firmization layer, useNon-weaving cloth, net or metal forming.

Block piece disclosed in this invention can be constructed to be pierced through by liquid transfer device. In some enforcementIn example, block piece is constructed to be pierced with withdrawn fluid food product.

Container disclosed in this invention can comprise transparent covering or opaque covering. According to frontState the container described in any one in claim, wherein covering also comprises oxygen barrier. The present inventionDisclosed covering can adopt ultrasonic bonding to be operationally attached to container. At some embodimentIn, covering disclosed in this invention adopts heat seal method to be operationally attached to container. Real at someExecute in example, with adhesive method, covering is attached to container. In certain embodiments, with mechanical meansCovering is attached to container.

In certain embodiments, covering disclosed in this invention can have the thickness that is less than 500mm.In certain embodiments, covering includes the foam of screen resilience. Recalling from container by coveringWhen at least one liquid transfer device, covering disclosed in this invention can be used for from least one liquidAt least one in transfer device removing fluids, slop product and/or food component. Real at someExecute in example, in the time inserting at least one liquid transfer device by covering, covering is at least oneThe outer wall of liquid transfer device forms sealing around.

On the other hand, the disclosure provides a kind of container, and this container comprises: (a) be contained in containerFood component, wherein food component is liquid food component or solid food component, and furtherGround wherein solid food component is constructed to produce slop product in the time contacting with liquid; (b) canBe fixed on movably the plunger in container, this plunger is positioned at the first surface that is operably connected to plungerSpring and and the food component that contacts of the second surface of plunger between; (c) at least one liquid rotatingMoving device, this at least one liquid transfer device is constructed to pierce through the wherein container of containing foodstuff componentA part, its medi-spring is in the part not contacting with food component of first surface and the container of plungerInner surface between bias voltage.

On the other hand, the invention provides according to the use of container described in any one in aforementioned claimMethod, described method is for the preparation of slop product or liquid food component.

On the other hand, the invention provides according to the use of container described in any one in aforementioned claimMethod, described method is for distributing fluids food product or liquid food component.

Foregoing invention content of the present disclosure is not intended to describe each embodiment of the present invention. The present inventionOne and the details of multiple embodiment also illustrate in the following description. Other features of the present invention,Target and advantage will be apparent according to description and claim.

Brief description of the drawings

Fig. 1 is embodiment front transversal with the disclosed container of the present invention of first liquid transfer deviceFace (frontcrosssection) view.

Fig. 2 is the embodiment with the disclosed container of the present invention of the first and second liquid transfer devicesFront viewgraph of cross-section.

Fig. 3 is the embodiment with the disclosed container of the present invention of the first and second liquid transfer devicesFront viewgraph of cross-section.

Fig. 4 and Fig. 5 are that to have the present invention of first liquid transfer device and deformable covering disclosedThe front viewgraph of cross-section of the embodiment of container.

Fig. 6 to Fig. 8 is the disclosed appearance of the present invention with first liquid transfer device, spring and plungerThe front viewgraph of cross-section of the embodiment of device.

Fig. 9 to Figure 11 is the front cross section of the various uses embodiment of disclosed container in Fig. 4 and Fig. 5View.

Figure 12 to Figure 14 is various uses embodiment front transversal of disclosed container in Fig. 6 to Fig. 8Face view.

Detailed description of the invention

Container 10 disclosed in this invention can be any shape, such as taper, square, rectangle etc.In certain embodiments, as shown in Figure 1, container 10 disclosed in this invention has frustoconical(frustroconical) sidewall 17, bottom 19 and covering 13. Sidewall 17 comprises air conventionallyWith the impervious any material of water. For example, polymer thin-film material, aluminium flake material etc. can be used asCovering. Container can be made and (be poured into a mould, is injection molded into by any suitable material that comprises plastic materialType, extrude etc.). Optionally, can be by the side contacting with the food component 14 being contained in containerOn wall surface, make food stage coating in any way.

Can select with various configurations and structure covering 13 according to the purposes application of container 10. For example,In certain embodiments, covering can be specific thickness to control the size that pierces through its required power.In certain embodiments, covering 13 can be specific thickness making the shape distortion of covering 13Required hydrokinetic size is controlled as certain required amount. In certain embodiments, covering 13 canBe 500 microns or less, 400 microns or less, 300 microns or less, 200 microns or less,175 microns or less, 150 microns or less, 124 microns or less, or even 100 microns or moreLittle. The outer surface of covering 13 also can comprise information and/or the diagram of some printings. The information of printingFor example can be explanation or company's brand. Equally, diagram can be how to prepare drinkable liquid picture orCompany's brand.

In certain embodiments, covering 13 comprises at least one elastomer layer. Can be used for of the present inventionElastomeric material be can at least appropriate strain any material. Can be used for elastomer of the present inventionMaterial is selected as making any aperture seal in covering 13 being used to form any of this type of perforationDevice around.

Can be used for elastomeric material of the present invention is also selected as making any perforation in covering 13 to existWhile recalling any device that is used to form this type of perforation, reseal. Can be used for elastomer material of the present inventionMaterial comprises silicon rubber, synthetic rubber, fluoropolymer rubber etc. Other elastomeric materials are included asElastomeric natural or synthetic rubber block copolymer, for example those are known to those skilled in the artA-B or A-B-A block copolymer. Other may available elastomeric materials comprise for example styrene/differentPentadiene/styrene (SIS) block copolymer, elastomer polyurethane, ethylene copolymer (for example secondAlkene vinyl acetate, the elastomeric ethylene/propene monomer copolymer of ethylene/propene/diene terpolymerElastomer, polyester elastomer. A kind of exemplary elastomers is synthetic rubber, and it is with trade name" KRATON " is by the Ke Teng high-performance polymer (Kraton of company of Houston, Texas, United StatesPerformancePolymersInc., Houston, TexasUSA) sell. These materials not only haveMultiple natural rubber character, for example pliability and sealed nature, but also have higher heat resistance andChemical resistance. These elastomeric chemical property can be based on by polystyrene block and diblock rubber structureThe styrene block copolymer becoming. Diblock rubber generally includes polybutadiene, polyisoprene or its hydrogenChange equivalent. Conventionally these synthetic rubber polymer and other materials (for example polyolefin, polyphenyl second,Alkene, tackifying resin or paraffin oil) blend to be to optimize described character. Also can add block modified dose of end,To improve these elastomeric thermal characteristics.

The present invention also comprises the elastomer of other types, for example elastomer gel, acrylic compounds elasticityBody, polyester elastomer and polyurethane elastomer. The example of these materials and/or trade name comprises tackifySIS, n-butyl acrylate-methylmethacrylate copolymer, thermoplastic polyester elastomer (for example can(the E.I.duPontde of E.I.Du Pont Company with trade name " HYTREL " from Wilmington, the Delaware StateNemoursandCompany, Willmington, Delaware) commercially available thermoplastic poly ester elastomerBody), and can trade name " IROGRAN " from Texas Wood Lan Zi Huntsman CorporationThe thermoplastic poly ammonia that (HuntsmanCorporation, TheWoodlands, Texas) is commercially availableEster. Be not bound by theory, it is believed that the elastomer gel after puncture can show flow velocity faster, fromAnd improve perforation can be sealed speed. The present invention is also contained makes elastomer or gained covering (13)Be exposed to electron beam. Be not bound by theory, it is believed that electron beam treatment can further improve elastomericCrosslink density. Elastomer layer also can be natural rubber, and this natural rubber can comprise crosslink sites, alsoCan not comprise crosslink sites.

It will also be appreciated that the elastomer of any these types or certain elasticity body each other or non-resilient with modificationThe blend of body. The present invention is also contained and is added conventional filler, plasticizer, sclerosis to elastomer layer and helpAgent, dyestuff, pigment, processing aid etc. In certain embodiments, covering 13 also comprises oxygen blockingBlock piece, for example aluminium-vapour deposition coating, polyvinylidene chloride (PVDC), ethylene-vinyl alcohol copolymer(EVOH) etc.

In certain embodiments, elastomer layer also comprises the combination of tackifier or tackifier. Although it is not uncommonPrestige is bound by theory, and is hit by a bullet the flow velocity of elastomer material to provide but tackifier can improve elastomer layerPerforation reseals characteristic. The example of typical case's tackifier comprises can trade name " ESCOREX2203 " from (ExxonMobilChemical of exxonmobil chemical company of Texas HoustonCompany, Houston, Texas) commercially available those. The example of commercially available tackifier is can commodityName " ESCOREZ " is from exxonmobil chemical company (ExxonMobilChemicalCompany)Commercially available those.

In certain embodiments, covering 13 is transparent. In certain embodiments, covering 13For opaque, for example, in it, there is specific color or pattern.

In certain embodiments, covering 13 comprises the material identical with sidewall 17. Hold according to manufacturingThe application of device 10, bottom 19 can be made up of the material identical with sidewall 17 or covering 13. CoverPart 13 and/or bottom 19 are attached to sidewall 17 integratedly or operationally. Operationally attached exampleComprise that heat seal, ultra-sonic welded, caking property are attached, mechanical attachment etc. For caking property attached andSpeech, adhesive can be contact adhesive, heat of solidification hot-melt adhesive, thermoplastic adhesives, crosslinkedPolymer etc. For mechanical attachment, can use fixture sealing or ring sealing mechanism by covering13 are attached to sidewall 17, thus the outward flange of airtight container 10, and wherein covering 13 can form classBe similar to the press seal that uses packing ring under clamp ring.

Food component 14 is contained in a part for container 10, and container is provided for receiving liquid simultaneouslySpace 15. Food component 14 can be liquid, solid or their mixture. Liquid can be shifted to dressPut 12 insertion coverings 13 liquid sent in container 10 or to be sent from it. Liquid transfer device 12Can be any device that can carry liquid, for example, there is the device of needle like configuration, cylinder, pipe etc. ?In some embodiment, liquid transfer device 12 is sharp-pointed for piercing through the end of covering 13, withBe conducive to pierce through covering 13. In certain embodiments, covering 13 is slotted, is opened recess or with itHe changes to receive liquid transfer device 12 by mode machinery.

In certain embodiments, can use a more than liquid transfer device to pierce through in a more than positionContainer 10. For example, Fig. 2 shows the second liquid transfer device of the bottom 19 of piercing through container 1016. Those skilled in the art will appreciate that liquid transfer device 12,16 can be conducive to liquid and flow intoWith flow container 10. In certain embodiments, wish to provide between food component 14 and bottom 19Filtering material 18. Filtering material 18 comprises weaving of any type or non-woven or open celled foam filter materialMaterial, comprises paper, metal, synthetic material etc. In certain embodiments, filtering material 18 can beBlock piece, this block piece comprises the material that is similar to the selected material as covering 13. For example,Block piece can comprise at least one elastomer layer, and this elastomer layer is similar to respect to 13 public affairs of coveringThe elastomer layer of opening.

In certain embodiments, can use a more than liquid transfer device in roughly the same position thornWear container. For example, Fig. 3 shows the second liquid transfer device of the bottom 19 of all piercing through container 1016 and the 3rd liquid transfer device 20. Those skilled in the art will appreciate that according to using container 10Application, can use multiple liquid transfer devices to pierce through container 10 in multiple positions.

In certain embodiments, covering 13 is elastically deformables, is contained in container 10 to provideThe machinery of middle liquid food component or slop product is discharged. As shown in Figure 4 and Figure 5, can pass through(for example second liquid transfer device 16, notes liquid at least one liquid transfer device as shown in the figure)Enter container. Those skilled in the art will appreciate that and can use multiple liquid in multiple positions of container 10Body transfer device pierces through container 10. Can and/or prepare slop during enclosing liquid food component producesDuring product, complete the injection of liquid. In certain embodiments, container 10 comprises food component 14, optionalGround is, can use the separating layer of any type make this food component with for receiving liquid or liquid foodThe space 15 of component separates. In certain embodiments, by using upper filter 21 that food is providedComponent 14 separates with space 15. Optionally, can between food component 14 and bottom 19, makeWith filtering material 18. Upper filter 19 and filtering material 18 comprise weaving of any type or non-knittingMake or open celled foam filtering material, comprise paper, metal, synthetic material etc.

Fig. 6 to 8 shows the diverse location of another embodiment of container 10 disclosed in this invention,This container 10 has sidewall 17, covering 13 and bottom 19, and described sidewall, covering and bottom canComprise identical material or different materials. In Fig. 6 to 8, container 10 has and is operably connectedTo the spring 24 of plunger 26, wherein plunger 26 contacts or contiguous food component 14. Spring 24 can rootExtend or compression according to the volume of the food component in container 10, liquid and/or liquid food component. ?In some embodiment, as shown in Figure 7, when passing through at least one liquid transfer device 16 filling liquidTime, spring 24 can be positioned at compression position. In the time applying a certain size pressure to liquid, spring 24Can stay this compression position. As shown in Figure 8, spring 24 and plunger 26 can be subsequently by the weights of springNew elongation provides mechanical force, makes liquid food component, liquid and/or slop product from container 10Middle discharge. Optionally, can between food component 14 and bottom 19, use filtering material 18. ThisThe technical staff in field is appreciated that and can uses multiple liquid to shift dress in the multiple positions on container 10Put and pierce through container 10. Can be during enclosing liquid food component and/or complete during preparing slop productBecome the injection of liquid.

In certain embodiments, container 10 can be operatively attached to liquid source of supply 32, for exampleSource of supply shown in Fig. 9 to 11. In the exemplary embodiment, liquid source of supply 32 is to direction controlValve 34 processed provides liquid, and this directional control valve can be used for allowing liquid to pass through at least one liquid transfer dressPut 16 and enter container 10. Control valve 34 also can be used for preventing liquid inlet container 10. Control valve 34Also can be used for allowing liquid, liquid food products and/or slop component to flow by tapping equipment 36Go out container 10. For example, in Fig. 9, container 10 has sidewall 17, bottom 19 and covering 13.Covering 13 comprises at least one elastomer layer, and making it is elastically deformable. Container 10 also wrapsContaining food component 14. Container 10 also optionally comprises filtration between food component 14 and bottom 19Material 18. As shown in Figure 9, directional control valve 34, in " cutting out " position, this means and not allowLiquid flow to container 10 by least one liquid transfer device 16 from liquid source of supply 32.

Figure 10 shows such embodiment, and wherein directional control valve 34 is in " injection " position,Thereby allow liquid to flow to container by least one liquid transfer device 16 from liquid source of supply 3210. The distortion when liquid volume of covering 13 in container 10 increases.

Figure 11 shows such embodiment, and wherein directional control valve 34 is in " discharge " position,Thereby allow liquid by least one liquid transfer device 16 and by tapping equipment 36 flow containers10, prevent that more liquid from flowing into container 10 from liquid source of supply 32 simultaneously. Recover with covering 13Its original shape, provides the liquid food component or the stream that in container 10, hold according to the embodiment of Figure 11The machinery at least to a certain degree of body food product is displaced. Shown in Figs. 9 to 11, can be by least one(for example second liquid transfer device 16 injects liquid to hold individual liquid transfer device as shown in the figure)Device. Those skilled in the art will appreciate that and can use multiple liquid in the multiple positions on container 10Transfer device pierces through container 10. Can and/or prepare slop product during enclosing liquid food componentComplete during this time the injection of liquid.

In certain embodiments, container 10 can be operatively attached to liquid source of supply 32, for exampleSource of supply shown in Figure 12 to 14. In the exemplary embodiment, liquid source of supply 32 is to direction controlValve 34 processed provides liquid, and this directional control valve can be used for allowing liquid to pass through at least one liquid transfer dressPut 16 and enter container 10. Control valve 34 also can be used for preventing liquid inlet container 10. Control valve 34Also can be used for allowing liquid, liquid food products and/or slop component to flow by tapping equipment 36Go out container 10. For example, in Figure 12, container 10 has the spring that is operably connected to plunger 2624, wherein plunger 26 contacts or contiguous food component 14. Container 10 is also optionally at food component14 and bottom 19 between comprise filtering material 18. As shown in Figure 9, directional control valve 34 is in " closingClose " position, this means and do not allow liquid to pass through at least one liquid transfer device 16 from liquid supplySource 32 flow to container 10. Plunger 26 keeps neutral state, extends position thereby allow spring 24 to stayPut.

Figure 13 shows such embodiment, and wherein directional control valve 34 is in " injection " position,Thereby allow liquid to flow to container by least one liquid transfer device 16 from liquid source of supply 3210. In the time of liquid inlet container 10, plunger 26 is towards covering 13 bias voltages, thereby causes spring 24Move into compression position.

Figure 14 shows such embodiment, and wherein directional control valve 34 is in " discharge " position,Thereby allow liquid by least one liquid transfer device 16 and by tapping equipment 36 flow containers10, prevent that more liquid from flowing into container 10 from liquid source of supply 32 simultaneously. Move forward into spring 24While entering extended position and plunger 26 its initial neutral position of recovery, provide according to the embodiment of Figure 11The liquid food component of holding in container 10 or the machinery at least to a certain degree of slop product driveGo out. As shown in Figure 12 to 14, can by least one liquid transfer device, (for example second liquid turnsMoving device 16, as shown in the figure) by liquid injecting container. Those skilled in the art will appreciate that canMultiple positions on container 10 are used multiple liquid transfer devices to pierce through container 10. Can be at enclosing liquidDuring food component and/or prepare the injection that completes liquid during slop product.

Food component can be any required edible component. Some examples comprise grind cure coffee,The mixture of tealeaves, instant coffee, ground coffee and instant coffee, chocolate-based product, dehydration oxMilk base product or any other known dehydration Edible material. Food component also can be and contains water, reallyJuice, vegetable juice, seasoned liquid, pick-me-up, soda (comprising alcohol and non-alcohol type)Liquid. In certain embodiments, the temperature range of the liquid of contacting foodstuff component can be at approximately 0 DEG C extremelyBetween approximately 100 DEG C, conventionally between approximately 50 DEG C to approximately 90 DEG C. The liquid that injects container can be water(comprising deionized water, running water, distilled water, soda water etc.), milk (comprise cream,Whole milk, 2% milk, 1% milk, skim milk etc.) or any other suitable liquid.

Covering 13 disclosed in this invention can comprise the layer except elastomer layer. For example, can compriseBe positioned on elastomer layer or under inelastic body layer. Or, elastomer layer can be clipped in two otherBetween non-elastomer polymer layer. In this class formation, can affect institute by the character that regulates filmNeed puncture resistance degree and sealing and reseal ability. The example of plastic material comprises thermoplasticityPlastics, for example polyethylene, polypropylene, polymethyl methacrylate, polyethylene terephthalateEster, polyamide, ethylene-vinyl alcohol and their combination. The example of thermosetting plastics comprises bisphenol-AThe 2-glycidyl ester of epoxy resin, bisphenol A cyanate, adjacent benzene type unsaturated polyester (UP), bisphenol-A secondAlkenyl esters etc. The example with the covering structure of three layers be polypropylene, synthetic rubber elastomer andPolyethylene. Or structure can comprise three layers: polyolefin, synthetic rubber elastomer and polyester. ?In some embodiment, three-layer structure comprises polyolefin, synthetic rubber elastomer and adhesive films layer.Adhesive phase also can be bonded to container by covering. In some cases, can use silicone elastomerReplace the synthetic rubber elastomer in these examples. These three layers each thickness range all 20 toBetween 500 microns. The present invention is also encompassed in and on a surface, applies vapour deposition obstacle coating.

Can form and can be used for plural layers of the present invention by the technology of any routine, for example coating, layerClose, coextrusion, progressively extrude, cast film, inflation film etc. The example of coextrusion is found in U.S.State's patent No. 3,557,265 and 3,479,425. Conventionally by layer by special feed block or specialDie head coextrusion, described feed block or die head make different materials contact and form film. Can makeWith the elastomer thin film replacing and inelastic body thin layer. Can be used for film of the present invention can be in any positionPut the layer with 3 to 100 different film combinations, for example 3 to 10 layers. At some embodimentIn, plural layers comprise two polyolefin layers, between these two polyolefin layers, have elastomer thin filmLayer. In addition, the thickness of elastomer thin film layer and inelastic body thin layer can be identical, also can be notWith. Can manufacture continuously covering, then its conversion is processed as to the required of final required coveringShape and size. Can complete this conversion processing by the method for any routine, comprise cross cutting, rotationCross cutting, laser cutting, water jet cutting etc. By optimizing machining technology condition to obtain required polymerization physical propertyMatter. These processing conditions comprise cooling and/or hardening heat.

Although do not wish to be bound by any theory, in order to reseal, elastomer need to pierce throughFlow freely afterwards. If the elastomeric material in elastomer layer is held tension or is constrained on thinIn film structure, in certain embodiments, elastomeric material can not be effectively mobile, thereby make again closeEnvelope speed is crossed and is caused resealing slowly inefficacy. Exist multiple preparation covering disclosed in this invention withDescribed in raising, reseal the method for characteristic.

In certain embodiments, can porous material be set at the top of elastomer layer or bottom. Typical case is manyThe example of hole material comprises: scrim, grid, web plate, foamed substrate, non-weaving cloth, patterningBase material etc. Can optimize according to covering the porosity size of porous material. Be not bound by theory,It is believed that the elastomeric material in elastomer layer can flow through porous material so that resealing of perforation to be provided.Equally, porous material provides or is used as obstacle in covering.

In certain embodiments, can realize and resealing by making covering self there is porosity.Can realize this point by multiple technologies, for example foaming technique, or in process, gas is notedEnter any layer in each layer of covering. In certain embodiments, in process, elastomer layer quiltBe applied for and make it there is porosity, or on elastomer layer self and elastomer layer or under layerBetween there is air gap. For example, in extrusion, by elastomer layer be anisotropically applied to upper cover fromAnd formation bubble or air gap.

In certain embodiments, can use the expandable material such as expended microsphere. InflatableMicroballoon comprise can trade name " EXPANCEL " from the Eka Chemicals company of Georgia De LuceThose that (EkaChemicalsInc., Duluth, Georgia) is commercially available. Use expended microsphereThe plural layers structure that the exemplary covering of manufacturing comprises 2 layers or multilayer, wherein one deck or more thanLayer comprises additive/filler, and described additive/filler can be blowing agent, for example expandable microspheres. Can useContact adhesive adheres to these plural layers the end face of covering, and this contact adhesive is applied to manyWherein one deck in two skins of layer film. In certain embodiments, these plural layers are plural layersSticking patch, this plural layers sticking patch only covers the top (region) of container covering disclosed in this inventionA part. In certain embodiments, these plural layers are laminated to covering disclosed in this invention before thisPart film, this covering film covers the whole top of container covering disclosed in this invention subsequently(region).

In certain embodiments, for elastomeric material is flowed, on elastomer layer and elastomer layerAnd/or under layer between there is intermediate layer. This intermediate layer is selected as making elastomer layer and intermediate layerBetween there is poor or lower adhesion. After covering is perforated, elastomer layer and intermediate layer itBetween low adhesion elastomer layer is separated with intermediate layer, thereby allow the elastomer material in elastomer layerMaterial flows through perforation to reseal. For example, can styrene block copolymer core (benzene second will be there isAlkene-ethylene/butylene-styrene, is called " SEBS ") the elastomer layer of polypropylene sheath be formulated as canEthylene vinyl acetate (EVA) film as the intermediate layer in the present invention has low adhesion.

In certain embodiments, the group that covering disclosed in this invention comprises mesh layer and elastomer layerClose, wherein elastomer layer comprises tackifier. Be not bound by theory, it is believed that mesh layer provide gap withMake the tackified elastomers material in elastomer layer flow and reseal perforation.

In certain embodiments, the combination that covering disclosed in this invention comprises elastomer layer, whereinUse adhesive softening at the temperature of institute's filling liquid to connect elastomer layer. Be not subject to theoretical pactBundle, it is believed that the constraint of elastomeric material less, thereby it can shrink around liquid transfer deviceTo reseal perforation.

Without departing from the scope and spirit in the present invention, various amendment of the present invention and change rightTo be apparent in those skilled in the art.

Claims (18)

1. a container, comprising:

(a) covering, described covering comprises at least one elastomeric film layer; With

(b) be contained in the food component in described container, wherein said food component is liquid foodComponent or solid food component, and wherein said solid food component quilt furtherBe configured to produce slop product in the time contacting with liquid; With

Wherein said covering is constructed to be pierced through to inject by least one liquid transfer deviceOr extract described liquid food component or described slop product, and further itsIn, when recall described at least one liquid transfer device from described container, described coveringBe constructed to reseal himself to prevent described liquid, liquid food component, fluid foodThe seepage of any in produce product or their combination.

2. container according to claim 1, also comprises (c) block piece, and described block piece is contiguousDescribed food component is installed on described container and is substantially to see through described diet groupPoint, for described food component is remained in described container.

3. container according to claim 2, wherein said block piece comprises at least one elastomerLayer.

4. container according to claim 1 and 2, the material choosing that wherein said elastomer layer comprisesAt least one material in following material: silicon rubber, synthetic rubber, fluoropolymer rubberGlue, olefin type elastomer, and their combination.

5. according to the container described in claim 2 or 3, wherein said block piece is constructed to by describedLiquid transfer device pierces through.

6. according to the container described in claim 2 or 3, wherein said block piece is constructed to be piercedTo extract described slop product.

7. container according to claim 1 and 2, wherein said covering is transparent.

8. container according to claim 1 and 2, wherein said covering is opaque.

9. container according to claim 1 and 2, wherein said covering also comprises oxygen barrierPart.

10. container according to claim 1 and 2, wherein said covering employing ultra-sonic welded canOperatively be attached to described container.

11. containers according to claim 1 and 2, wherein said covering adopts heat seal to graspMake to be attached to described container.

12. containers according to claim 1 and 2, wherein said covering adheres to described appearanceDevice.

13. containers according to claim 1 and 2, wherein said covering is mechanically attached to instituteState container.

14. containers according to claim 1 and 2, wherein said covering have be less than 500 micro-The thickness of rice.

15. containers according to claim 1 and 2, wherein said covering includes screen resilienceFoam.

16. containers according to claim 1 and 2, wherein by described covering from described appearanceWhen device is recalled described at least one liquid transfer device, described covering from described at least oneAt least one in liquid transfer device removing fluids, slop product and food component.

17. containers according to claim 1 and 2, wherein described in inserting by described coveringWhen at least one liquid transfer device, described covering shifts dress at described at least one liquidThe outer wall of putting forms sealing around.

18. 1 kinds for according to the covering of the container described in claim 1 to 17 any one, bagDraw together:

(a) elastomeric film layer, it is selected from least one material in following material: silicon rubber, synthetic rubberGlue, fluoropolymer rubber, olefin type elastomer, and their combination; And

(b) polypropylene layer.