CN1918039A - Reclosable packages with active agents - Google Patents
Reclosable packages with active agents Download PDFInfo
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- CN1918039A CN1918039A CN 200580004582 CN200580004582A CN1918039A CN 1918039 A CN1918039 A CN 1918039A CN 200580004582 CN200580004582 CN 200580004582 CN 200580004582 A CN200580004582 A CN 200580004582A CN 1918039 A CN1918039 A CN 1918039A
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Abstract
Packages with active agents are described. Generally, each disclosed package (10) has a pair of opposing body panels (16, 18) joined together along a pair of opposing sides and a bottom bridging the sides so as to define a mouth opposite the bottom, a reclosable fastener (14) extending along the mouth, and an active agent (50, 52). The reclosable fastener (14) includes a pair of polymeric tracks (24, 30) in which each track includes a mating element (26, 32) and a fin portion (28, 30). The mating elements (26, 32) are releasably engageable to each other, and each of the fin portions (28, 30) extends downwards from the respective mating element (26, 32) towards the bottom of the reclosable package (10). The active agent (50, 52) is associated with at least one of the fin portions (28, 30) for communication with the interior (22) of the reclosable package (10).
Description
Technical field
The present invention relates to package and structure and the method that is used for discharging activator at this package.More particularly, the present invention relates to activator, for example freshness prolongs agent, odor management agent, with other functional reagents, and be used to discharge these activators to prolong the structure and the method for perishable products freshness and management or the control smell relevant with product in being placed on this package.
Background technology
Osed top package once more, the food containers that for example has cooperation or hinged cover, promotion is closed or the sack of slider fasteners with having, supplier and user for pre-perishables are very easily, particularly for for example pork luncheon meat and cheese, typically, only use the part of these products in any fixed time.The osed top package also is especially easily for family's use to store remaining perishable products once more.Yet, about these once more a problem of enclose spare be, they do not comprise any be used for prolonging this perishable things can be in the feature of package storage and fresh-keeping time cycle.Thereby the content of this package can addle very soon, and if so, this content will no longer be suitable for the human consumption.The cost of perishable spoilage is for the user and the commercial user of enclose spare are serious problems once more.
A trial of carrying out at this perishable spoilage relates to use in fact for the anti-sealing of addling of the impermeable layering of oxygen.In this system, this package is in case opened first, and sealing is just destroyed and can not suppress addling of perishable things again.Thereby this system only solved at this package by the perishable spoilage problem before opening first, and can not help the domestic consumer that remaining perishable products is placed in this package bag.
Therefore need a kind of package with the feature that suppresses perishable spoilage.
Summary of the invention
Disclosed herein is package with activator.
Usually, each package disclosed in this invention has a pair of relative main body panel, this main body panel is joined together to form and this bottom opening opposing along the bottom of a pair of opposite side and this opposite side of bridge joint, and the osed top fastener extends along this opening once more, and activator.This once more the osed top fastener comprise a pair of polymeric tracks, wherein each track comprises complementary elements and fin component, this complementary elements is engaged with each other releasedly.Each fin component extends downwards the bottom of enclose spare towards this once more from corresponding complementary elements usually.
According to an aspect of the present invention, for osed top package once more provides activating agent, it is associated with at least one fin component to be connected with this interior.At least a mode by brush, injection, lamination, spraying, coating and punching press is applied at least one fin component with this activating agent.Alternatively, this activating agent and at least one fin component extruding.For example, this activating agent can be distributed in the form of microcapsules at least one fin component.Alternatively, activating agent is included in the active agent layer, and this active agent layer is connected at least one fin component by at least a mode in bonding, extrusion, heat-sealing and the welding (for example ultrasonic welding).Alternatively, activating agent is included in in coating, liner, pouch and the belt that is applied at least one fin component at least one.
According to a further aspect in the invention, activating agent is that the freshness that comprises isothiocyanate (isothiocyanate) cmpd prolongs agent.This freshness prolongs agent can also comprise acid and/or spices (fragrant).
A kind of structure of release of selective actuation activating agent is provided according to a further aspect in the invention.Alternatively, discharge this activating agent according to humidity.
According to a further aspect in the invention, be provided between this fin component and extend and be arranged on this inside and can seal disposable frangible element between the fastener once more.This activating agent can be set at the top and/or the below of this disposable frangible element.
According to a further aspect in the invention, provide with at least one barrier layer that is associated of this main body panel to form about this in-to-in barrier environment.
According to a further aspect in the invention, provide the barrier layer that is associated with at least one fin component.This barrier layer is configured to more farther than the active agent layer that comprises activating agent apart from this inside.
According to a further aspect in the invention, provide the diffusion zone that is associated with at least one fin component.This diffusion zone with comprise that the active agent layer of activating agent is adjacent.This diffusion zone is configured to nearer apart from this inside specific activity agent layer.
According to a further aspect in the invention, the osed top package provides the first relative main body panel with inside face and outside face once more, has second relative main body panel of inside face and outside face and osed top polymeric seal once more.This first and second main body panel is connected along the bottom of a pair of opposite side with this opposite side of bridge joint, thereby at one end forms opening.This main body panel that is connected forms the inner space.This once more the osed top polymeric seal extend along an end of each inside face of these first and second relative main body panel, and comprise first and second polymeric track.First polymeric track comprises first complementary elements and first fin component, and wherein this first fin component extends downwards towards this package bottom from this first complementary elements usually.Second polymeric track comprises second complementary elements and second fin component, and wherein this second fin component extends downwards towards this package bottom from this second complementary elements usually.This first and second complementary elements is engagement releasedly each other.This first fin component comprises ground floor with activating agent and at least as the second layer of barrier layer.This second fin component comprises with activating agent the 3rd layer and at least as the 4th layer of barrier layer.
With reference to following detailed description and accompanying drawing, these and other feature of the disclosed package of the present invention will be more readily understood.This accompanying drawing does not proportionally draw, but only shows relative size.
The accompanying drawing summary
Fig. 1 a is the section drawing of opening portion of enclose spare or bag once more according to an embodiment of the invention;
Fig. 1 b is the section drawing of opening portion of enclose spare or bag once more in accordance with another embodiment of the present invention;
Fig. 1 c is the section drawing of opening portion of enclose spare or bag once more in accordance with another embodiment of the present invention;
Fig. 1 d is the section drawing of opening portion of enclose spare or bag once more in accordance with another embodiment of the present invention;
Fig. 2 is the transparent view of enclose spare once more that comprises the opening portion of Fig. 1 b, wherein can seal fastener or slide fastener once more and have slide block structure that is opened and the disposable frangible element that is partially opened;
Fig. 3 a is the section drawing of opening portion of enclose spare or bag once more in accordance with another embodiment of the present invention;
Fig. 3 b is the section drawing of opening portion of enclose spare or bag once more in accordance with another embodiment of the present invention; With
Fig. 3 c is the section drawing of opening portion of enclose spare or bag once more in accordance with another embodiment of the present invention.
Detailed description of the invention
The present invention relates to package, packing and other wherein include the dependency structure of activating agent.Thereby the present invention has the application that is used for various flexibilities and rigid container and package, for example osed top plastic bag once more, refuse bag and lining, rigid trash containers, gas-tight container, lunch box and be generally used for the packaging bag or the paillon foil of perishable package or perishable covering.
As used herein, term " package " can be understood as package or the container that comprises any kind, for example flexible plastic pouch or rigid container, and the paillon foil and the sack that are generally used for package or storage perishable things.
As used herein, term " activating agent " can be understood as and comprise any reagent, composition or component that enhancing or beneficial effect are provided in package or container.Activating agent can comprise and is used to prolong food or the freshness of other perishable things or " freshness prolongation " agent of shelf time that is stored in the package, be used to shelter, neutralize and/or reduce " odor management " agent from the smell of package or other functional reagents.
Every kind of activating agent of the present invention can be used in combination with package.More particularly, every kind of freshness of the present invention prolongs agent can be used for suppressing the food of package or addling of other perishable things, and every kind of odor management agent of the present invention can be used to shelter, neutralize and/or reduces smell from package.Every kind of activating agent of the present invention can be set in the environment of package, for example to be applied to the form setting of coating, liner, pouch and belt on the package parts, parts extruding with this package, spraying, brush, coating, lamination or be stamped on these package parts, be injected on these package parts, and/or be distributed in the material of these package parts, for example with the form of microcapsules.
For the purpose of illustrative rather than restriction, freshness of the present invention prolongs agent can be arranged on the polymer pouches subenvironment that is used for the store perishable thing.This polymeric bags can be used for user's storage food (for example leftover meal) or for example " make, fills and sealing " application apparatus of food Package spare operation.This polymeric bags can comprise can not seal and osed top polymeric bags once more once more.Typically, by closure elements or fastener once more for example once more gluing or adhesive seal, welding (for example ultrasonic welding), mated tracks and mated dimples of osed top make that the osed top polymeric bags can be sealed once more once more.This mated tracks can by applying finger pressure or use accessory equipment for example slide block open or seal.Disclosed sack in No. 2004/0066985, some examples that can seal polymeric bags once more are included in US Patent No. 5067208 and No. 6147588 and the U.S. Patent Application Publication is here by reference and clearly in full in conjunction with the content of these documents.
Still for the purpose of illustrative rather than restriction, freshness of the present invention prolongs agent also can be arranged on the rigid pack environment that is used for the store perishable thing, for example bakery containers, deli containers, fruit containers, lunch box and roaster containers.The example of some containers be included in US Patent 6042586,6257401,6349857,6644494, No. 6845878 and U.S. Patent Application Publication 2004/0074902 and No. 2005/0000966 in disclosed container, here by reference and clearly in full in conjunction with the content of these documents.
Still for the purpose of illustrative rather than restriction, odor management agent of the present invention can be used for collecting the environment that the sack of rubbish or refuse and liner and collection have other containers of clothing that the article of not wishing smell for example will wash and diaper.This litter bag can comprise the cotton rope feature, is used to help this sack of secure closed or liner, is formed for carrying the handle that is set up sack or liner and/or assists to open this sack or liner.The example of some litter bags is included in disclosed sack in No. 2003/0223657, the U.S. Patent Application Publication, here by reference and clearly in full in conjunction with the content of the document.
To be described so that the complete understanding for disclosed package and dependency structure and activating agent to be provided exemplary embodiment now.For the purpose of illustrative rather than restriction, in the linguistic context that can seal polymeric bags once more, package of the present invention is described.One or more examples of this exemplary embodiment shown in the drawings.Those of ordinary skills will be understood that, can change and revise the optional embodiment of disclosed each sack with activating agent, and can carry out other interpolations and modification to disclosed package and do not break away from the scope of the present disclosure with the sack with activating agent, container and other packages that are provided for other application.For example, the feature of exemplary embodiment can be combined, separates, exchanges and/or rearrange to produce other embodiment.These modifications and change are contemplated as falling with in the scope of the present disclosure.
Forward accompanying drawing now to, Fig. 1 has described by having once more osed top closing appliance for example fastener or the enclose spare once more of slide fastener 14 or the opening portion that sack 10 forms.This fastener or slide fastener 14 can by applying finger pressure or use auxiliary extrusion equipment for example slide block open and seal.Fig. 1 b-1d has described by the enclose spare once more with fastener or slide fastener or other opening portions that sack forms.Fig. 2 shows the enclose spare once more 70 with opening portion shown in Fig. 1 b, and wherein this opening portion is in a partly opened position.
Return with reference to Fig. 1 a, the opening portion of osed top package 10 comprises a pair of first and second relative main body or the wall panel 16,18 once more, and it constitutes package body 20 (Fig. 2) and has formed inner space 22.What be connected to first main body panel 16 is first fin component 28 that has first track 24 of first profile 26 and extend downwards from this first profile 26 usually.First main body panel 16 has outside face 16a and inside face 16b.First fin component 28 has outside face 28a and inside face 28b.What be connected to second main body panel 18 is second fin component 34 that has second track 30 of second profile 32 and extend downwards from this second profile 32 usually.Second main body panel 18 has outside face 18a and inside face 18b.Second fin component 34 has outside face 34a and inside face 34b.Inside face 16b is attached to outside face 28a.Inside face 18b is attached to outside face 34a.This first and second profile 26,32 meshes mutually releasedly so that seal for package 10 provides once more osed top.The thickness of this first and second fin component 28,34 generally changes to about 10mil from about 2mil.More particularly, this thickness changes to about 7mil from about 4mil.
The enclose spare once more of Fig. 1 a-1d also comprises the auxiliary slider mechanism 36 (Fig. 2) that is installed to fastener 14 slidably, is used for moving between detent position and open position.With reference to Fig. 1 a-1d and 2, when slide block mechanism 36 was in detent position, this first and second profile 26,32 was meshing with each other, and slide block mechanism 36 is separated from each other from the mobile profile 26,32 that makes of detent position to the open position.
The package 70 of Fig. 2 also provides end terminations 37.End terminations can have various purposes, for example (a) prevents or stops slide block mechanism 36 to move past the end of fastener 14, (b) indicate to provide the sense of touch that is closed with slide block 36 mutual actions, (c) assist to stop or prevent the leakage of package 70, and (d) keep this first and second profile 26,32 together and provide extra intensity between package 10 normal used lifes, to be applied to pressure on the profile 26,32 with antagonism.Can obtain general quoting from authorizing Herrington in the US Patent 5067208 of Jr. etc. here in conjunction with its full text content about the structure of slide block mechanism 36 and end terminations 37 and other details of operation.
Can predict and use other end terminations to replace above-mentioned end terminations 37.For example, can green phase form terminal solder joint for the mode of the terminal pressure-formed heating rod of fastener, ultrasonic welding or other prior aries.
Shown in Fig. 1 a-1d and 2, also move by hold slide block mechanism 36 by the user, thereby open this osed top package once more so that first and second profiles 26,32 of each first and second track are separated from each other.Then, the user tears along preferential area of weakness 38 and optionally can destroy element 12 (if existence).Alternatively, the user can open this and can destroy element 12 by cutting it.Can use fastener 14 and slide block mechanism 36 to seal this package once more.Especially, the user holds slide block mechanism 36 and it is moved to detent position from the open position, thereby meshes first and second profiles 26,32 of this complementation.
The disposable element 12 that destroys not only provides the assurance that was not opened before the new purchase package for the user, and provide good initial sealing freshness, and can stop or prevent the activating agent for example humidity and activating of trigger condition that is activated before its initial unlatching, to preserve the other guide of food, perishable things or package.Because the closing appliance once more of Fig. 1 b-1d is set at this disposable destruction on the element, (promptly this can seal closing device once more away from this inner space) be not so this operation that can seal closing device once more can be hindered by the disposable existence that destroys element.
Activating agent 50 is comprised in the fin component 28 or on it.In certain embodiments, the activating agent 50 and first fin component 28 push or are infused in this first fin component 28.For example, activating agent 50 can be distributed in the material of first fin component 28 with microencapsulation form.In a preferred embodiment, before being attached to activating agent in the package structure with its microcapsules of packing into.Microcapsules with activating agent be sealed in can resist that package is handled and make during the polymeric material of heat in, but its based on the specific environment factor contacting of humidity and degenerate, decompose or fragmentation and discharge this activating agent for example.Activating agent can be loaded in the microcapsules, and can utilize the molten material of fastener to scatter these microcapsules and be stamped in batch manufacturing in the fastener 14.
Comprise structure if use belt or liner to support activating agent, this belt or liner can comprise for example slip additive of adhesives, liner shape assembly and/or delivery system so, and it helps to stop or prevents that this active agent structures from clinging this adhesives.For example, this delivery system can be set on the surface of this belt or liner, and it is configured to the surface that contacts away from the main body panel of adhering to this belt or liner, thereby stops or prevent from can cling when package is wound.For example the material of silicone and glycerine Monostearate can be between the assembly of this delivery system.
The size of agent structure can change, and is to depend on these factors for example desired amount, the particular agent that is used, the quantity of the agent structure used in package and the size of package of this reagent.According to another embodiment, this package can comprise two or more active agent structures.
Agent structure of the present invention is liner, belt or pouch for example, can be attached to package from stick and for example can seal once more and wrap by pressure-sensitive.This is pressure-sensitive can be any this agent structure to be attached to once more suitable adhesive on the enclose spare from stick.The non-restrictive example of available pressure sensitive adhesive comprises the adhesives based on acrylic acid or rubber.
The agent structure of belt or pouch can roll-type supply to once more on the layer of enclose spare.The roll-type supply structure of this belt or pouch also can initially comprise release liner, is used for assisting to prevent or stop this reagent to cling himself before being sent to once more enclose spare.If this release liner uses, then before being attached to once more enclose spare or bag, this belt or pouch supply with band or pouch separates with this roll-type.The example of release liner comprises the paper that scribbles silicon.Yet because relevant extra cost, release liner may be undesirable.Can predict, this agent structure can be before being attached to once more enclose spare or bag roll-type supply with and do not use release liner.
Alternatively, the agent structure of this liner or pouch can be by the feed bin feeding during being attached to once more the osed top package.This liner is preferably by the feed bin feeding, and pouch can be supplied with by feed bin feeding or roll-type.This belt is preferably being attached to once more and is supplied with by roll-type during the osed top package.For example, this belt can be untied, be cut and is attached to once more on the osed top package.
According to another embodiment, this agent structure patch, belt or pouch can be sealed to once more the osed top package by direct heat or wrap.This structure can roll-type be supplied with or magazine feed before being heat sealed to once more on the osed top package.In heat seal embodiment, will not wish to use release liner, because can not adhere to self without any the agent structure of adhesives, thereby this release liner has increased unnecessary cost.This agent structure can be attached to once more on the osed top package in a plurality of positions.This agent structure can be attached on this main body panel during heat seal forms.For example, this agent structure can be set between the side seal that forms between first and second main body panel.Can predict the adherence method that can use other.
Can predict, can on this coating, pouch, liner or belt, increase other layers.For example, can increase barrier layer and be connected with osed top interior once more, thereby and assist to prevent or stop this freshness prolongation agent to pass this main body panel assist to keep this reagent.
It is also envisioned that, can be in type information on the barrier layer for example on this agent structure.Can predict the diverse location that this printing can occur in this structure.Visual and readable for the enhancing of this printing, when being positioned at once more the inside of enclose spare, this structure wishes on the agent structure surface of the most close this main body panel, to print.
In one embodiment, the agent structure of this coating, pouch, liner, belt form is set at once more the inside of enclose spare.Alternatively, the agent structure of this coating, pouch, liner, belt form be set on the outside face of this package or the layer of this package in so that this reagent can be penetrated into or be communicated to the inside of this package.For example, the agent structure of this coating, pouch, liner, belt form is set at once more on the outside face of enclose spare, and wherein the part of this main body panel is removed so that the reagent that is included in this structure can infiltrate through this inside of enclose spare once more.Can predict, one deck of enclose spare can be permeable for this reagent once more, so that this reagent and the internal communication of enclose spare once more.
Similarly, activating agent 52 can be incorporated or impregnated into or extruded with on this second fin component 34.It is also envisioned that activating agent 52 can be applied on this second fin component 34 by spraying, brush, coating, lamination, compacting or other.
In certain embodiments, activating agent 50,52 comprises that one or more freshnesss prolong agent.It for example can be that every kind of freshness prolongs agent, natural oil, and antiseptic, acid, perhaps other can prolong the material of food or perishable things freshness or shelf time.For example, some non-restrictive example that freshness prolongs composition for example comprise isothiocyanate, from the allyl isothiocyanate (AIT) of natural resources, d-limonene, eugenol, allicin, isothymol, thyme camphor, chlorine dioxide, hydrogen peroxide, sodium percarbonate, ascorbic acid, citric acid, cinnamic acid, leaf mustard, Chinese cassia tree, peppermint, spearmint, triclosan (triclosan), leek (Allium tuberosum), cassia bark (Chinese cinnamon), the fruit of medicinal cornel (cornus officinalis), allyl cyanide, 1-cyano group 2,3-epithiopropane, allyl sulfocyanate, lactobacillus reuteri (Lactobacillus reuteri), methyl-isorhodanate, cassia oil, lemongrass oil, thyme linaloe oil, methyl jasmonate, tea oil, ethanol, salicylide, carvacrol, cymene, the extraction essential oil of various onions, the extraction essential oil of garlic, from mossberry, fraises des bois, raspberry, the berry phenol that extracts in strawberry and the blueberry (berry phenolic) is from mossberry, fraises des bois, raspberry, the gallotannin of strawberry and blueberry is from nutmeg, peppermint, cloves, wild marjoram, Chinese cassia tree, yellow camphor tree, Salvia japonica, the essential oil of thyme and rosemary,, vanillic aldehyde, vanillyl alcohol, vanillic acid, biacetyl, natural honey, Dioxygen difluoride, carbon dioxide, modified atmosphere (modified atmosphere) and combination thereof.This modified atmosphere can comprise nitrogen, oxygen, sulphur dioxide, carbonic oxide, carbon dioxide and combination thereof.
AIT can be from for example natural acquisition leaf mustard and the mustard of plant or food, because its antibiotic property is particularly advantageous so prolong agent as freshness.AIT for example produces the leaf mustard from plant, and it comprises glucosinolate and myrosin (myrosinase enzyme).Myrosin and glucosinolate mutual action to be producing AIT, and because this mutual action comprises hydrolysis, thereby the moist AIT that can activate produces.Have been found that AIT has antibiotic and sterilization idiocratic.Because AIT discharges with gaseous form, so AIT can permeate the inside of package with prevention bacterial growth wherein, thus and the freshness of prolongation food or perishable things.Therefore, produce the product of AIT, comprise mustard, horseradish and leaf mustard,, can prolong agent as freshness in an embodiment of the present invention with for example refinement of various forms, powder, oil or soil seed.
In certain embodiments, the freshness that comprises AIT prolongs agent and can also be used in combination with other functional reagents.For example, in a this embodiment, AIT and a kind of sour combination, thus strengthened AIT greatly from the generation of leaf mustard and strengthened the bactericidal effect of leaf mustard.Thereby, if use soil leaf mustard seed to prolong agent as freshness, it can with estimated rate and anhydrous acid for example anhydrous citric acid combine to increase AIT output and enhancing freshness prolongation function.
Freshness prolongs agent can also provide other functions, thereby can be used for other purposes.In certain embodiments, freshness prolongs agent and can comprise the freshness composition that is used for the food and extend freshness and be used for only sheltering, reduce and/or the odour component of other smells of the penetrating odor of this freshness composition that neutralizes rather than the content that stores at package.Preferably, this odour component is not sheltered the smell that is stored in the content in the package, for example food odors or food spoilage odors, thus can detect rotting of this content or addle by sense of smell.For example, comprise that the freshness prolongation agent of AIT freshness composition can also comprise fragrance ingredient for example vanilla, cassia bark or lemon oil, it can shelter the penetrating odor of AIT, but can not shelter or influence the smell of stored contents.Preferably, this freshness prolongs agent can not influence it content that organoleptic attribute is stored, thereby allows the user to detect rotting or addling of stored contents by smelling to hear at an easy rate.
Alternatively, in certain embodiments, activating agent 50,52 comprises one or more odor management agent.Advantageously, odor management agent can be incorporated into to dispose and is used for collecting the package of rubbish or refuse to shelter, to neutralize and/or to reduce undesirable smell.Advantageously, thus odor management agent can be used to package to provide or form a kind of smell.Thereby odor management agent can be incorporated in thermoplastic bag or liner and other containers, for example in rubbish or litter bag, diaper containers, laundry bag, reservoir bag and medical bag that can be provided with or the container.
The non-restrictive example of odor management agent comprises for example METAZENE of AIT, d-limonene, leaf mustard, natural oil, chlorine dioxide, hydrogen sulphide, methyl mercaptan, ammonia, lemongrass, pine tree, flower and alternative ester.
The preferred embodiment of odor management agent comprises AIT, and this reagent can be by providing in conjunction with the leaf mustard in the activating agent for example.Leaf mustard no matter its form is soil leaf mustard seed, powder, oil or paste, can provides separately or combine with catalysis AIT from generation of leaf mustard and the antibiotic and smell management characteristic of reinforcement leaf mustard with acid (for example citric acid).Because it prolongs the effectiveness of perishable things freshness as previously mentioned, AIT can provide a plurality of functions in being attached to perishable package the time, and for example AIT can carry out freshness and prolongs and the smell management function.
In certain embodiments, odor management agent can comprise that other compositions are used to the user that expection smell or fragrance are provided.For example, natural oil for example lemongrass oil can be used to control the smell that gives out from package, sheltering the smell of this original odor management agent self, or makes that the smell of this odor management agent is more comfortable for the user.Good odour is ineffective especially for controlling to have been found that the composite that comprises the soil leaf mustard seed and the anhydrous citric acid of the lemon oxalic acid that is mixed with about 5% weighting.
Provide expection fragrance if activating agent 50,52 comprises fragrance or fragrance component to be used to package, can comprise that so other are used to strengthen the material of the scent concentration of interior.For example, activating agent 50 can comprise that perlite rock is to strengthen scent concentration.Wishing to use perlite rock is because it keeps performance, its stability and the skin area thereof of fragrance.Other non-restrictive example that are used to strengthen the material of fragrance comprise microsphere, talcum, silicon, silicate for example aluminium silicate, vermiculite, diatom earth or its combination.
Further according to the present invention, these first and second fin components that comprise at least a activating agent comprise the activation system that is triggered when enclose spare is once more opened or filled content.This activation system can be mechanical in fact, for example in case separate perforation or the stripping system that just starts activating agent release.Another kind of Activiation method can be based on humidity or the level of wetness (its hydration activity with content is relevant) that exists in the package.For example, the humidity of height can start chemical reaction, and it discharges volatile compound for example carbon dioxide or chlorine dioxide subsequently.In this example, when humidity is higher in the osed top package once more, add the more activating agent of volume.The example of the reaction that is activated by high humidity level is salt and acid reaction, for example sodium bicarbonate and citric acid, or sodium hypochlorite and citric acid reactions.The release of AIT is also auxiliary by foregoing humidity.In this example, when humidity increases, in the package air, discharge the more activating agent of volume.
Prolong in the method for operation of enclose spare once more of agent in the freshness of using humidity to activate, for example, perishable things is placed on the inside of package, and the humidity of perishable things or level of wetness activate this freshness and prolong agent.In addition, if this reagent is configured to can finish selective activation or release so near the opening of bag shape package or the edge of approaching container-like package.For example, when perishable things is mobile near this reagent, (for example when being gone into this inside, the perishable products initial placement passes through the edge of this opening or this package of process), the humidity of this perishable things or level of wetness can activate this reagent, and this perishable products still is placed on inside, and based on entering this in-to-in air (for example during package is opened).When hope in transparent wrapper spare during maximum displaying contents, opening or edge that this reagent is arranged near package also are favourable.
The humidity Activiation method can also be controlled by barrier layer material is provided.For example, preferably, this main body panel provides barrier layer or is made of forming enclosed environment barrier material, thereby prevents when pack closure or stop the introducing of moisture and the release of activating agent.Also for example, this fin component can provide barrier layer or be made of barrier material.As used herein, term " barrier layer " or " barrier material " comprise that prevention or control activating agent are discharged into layer or the material in the package gas, rather than stop up or prevent the layer or the material of this release fully.
An example of this material is the carbowax (PEG) that is attached in the low density polyethylene (LDPE) (LDPE).Other provide barrier with transmission water, water vapour, oxygen, nitrogen, carbon dioxide, ethene, the material of volatility or non-volatile activating agent includes but not limited to, the poly-mer of following material, copolymer, compound, extruding, extrusion, coating, metallization or lamination: low density polyethylene (LDPE) (LDPE), linear low density polyethylene (LLDPE), linear density polyethylene (LMDPE), high density polyethylene (HDPE) (HDPE), low density polyethylene (LDPE) (VLDPE) very, metallocene (mPE), polypropylene (PP), oriented polypropylene (OPP), acrylonitrile-butadiene-styrene (ABS), acrylonitrile-styrene-acrylic ester (ASA), acrylonitrile-EPDM-styrene (AES), the ASA/AES copolymer, polyamide 6, polyamide 66 and copolyamide thereof, polyvinylchloride (PVC), acrylic acid, Polybutylene Terephthalate (PBT), thermoplastic polyester (TPE), ethylene/ethyl acrylate (EEA), ethylene/vinyl acetate (EVA), polystyrene (PS), high impact polystyrene (HIPS), distortion polystyrene, ethylene-vinyl alcohol (EVAL or EVOH), polyvinylidene chloride (PVDC), liquid crystal polymer (LCP), polyamide, polyacrylic acid (PAA), poly(lactic acid) (PLA), polyethylene terephthalate (PET), polyethylene terephthalate (PETG), saran, the pottery filled polymer, high molecular polymer (nanocompositepolymers), polychlorotrifluoroethylene (PCTFE), polymethyl methacrylate (PMMA), acrylonitrile-methyl acrylate (AC-MA), polyphenylene oxide (PPE), polyphenylene oxide (PPO), thermoplastic rubber, glass paper, nylon, polycarbonate (PC), distortion polyolefin with barrier characteristics, cyclic olefin copolymer, polyacrylinitrile, acrylonitrile copolymer, polyacetal, distortion polyacetal, acrylic acid growth and inorganic barrier coating.It is also envisioned that, can use for example paillon foil and the metallized polymeric oriented polypropylene of metallization (OPP) for example of other barrier materials.This barrier layer comes down at least can not permeate water steam and activating agent, and in certain embodiments, can't see through oxygen, nitrogen, carbon dioxide or its combination.Thereby this barrier layer stops or prevented that water vapour (and in certain embodiments, also comprising oxygen, nitrogen, carbon dioxide) from entering this interior, stops simultaneously or prevents activating agent this interior of overflowing.
An example that can be used to form the cyclic olefin copolymer of barrier layer is TOPAS 8007.Think and to obtain useful cyclic olefin copolymer from many companies.For example, the enterprise of Celanese AG, Ticona at Summit N.J., has available cyclic olefin copolymer.Other companies that are considered to have available cyclic olefin copolymer comprise, Nippon Zeon (Japan), and Mitsui Chemical (Japan) and JSR (Japan) were JapanSynthetic Rubber in the past.The enterprise of Celanese AG, Ticona has the commercial cyclic olefin copolymer (COC) under title TOPAS .These cyclic olefin copolymer are considered to utilize ENB and ethene as raw material and use metallocene catalyst to prepare.Think and have at least level Four TOPAS resin can use (TOPAS 8007, TOPAS 6013, TOPAS 6015 and TOPAS 6017).This level Four can with TOPAS resin have glass transition temperature Tg, be respectively 80,140,160 and 180 ℃.The corresponding ENB level of this level Four TOPAS resin is 35,48,55 and 59 moles of %.
Preferably, can water-solublely separate material for example PVOH do not comprise independent barrier layer 42,44 because these materials can decompose in wet environment, loss intensity and/or barrier characteristics.Can predict, for example laminated film tack coat or adhesive phase also can be used for the present invention to other layers.
This first fin component 28 that comprises activating agent 50 can be formed by the polymeric material that comprises thermoplastic material.Alternatively, if form the part of package, polymeric matrix layer can be provided for for example fin component of the assembly that the activating agent of the microcapsules of packing into injected or support to this package.The base layer of this practical structures 50 can be by polyolefine material for example polyethylene, polypropylene, polystyrene and be combined to form.This base layer material do not limit the poly-mer that example comprises following material, copolymer or its compound: low density polyethylene (LDPE) (LDPE), linear low density polyethylene (LLDPE), linear density polyethylene (LMDPE), high density polyethylene (HDPE) (HDPE), low density polyethylene (LDPE) (VLDPE) very, metallocene (mPE), polypropylene (PP), polyamide 6, polyamide 66 and copolyamide thereof, polyvinylchloride (PVC), acrylic acid, thermoplastic polyester (TPE), ethylene/vinyl acetate (EVA), polystyrene (PS), high impact polystyrene (HIPS), the distortion polystyrene, liquid crystal polymer (LCP), polyamide, polyacrylic acid (PAA), poly(lactic acid) (PLA), polyethylene terephthalate (PETG), polymethyl methacrylate (PMMA), polyphenylene oxide (PPE), thermoplastic rubber and cellulose and filled plastics.These materials provide the good barrier for water vapour usually, but allow oxygen and activating agent to see through.Can predict to have and comprise poly liner, belt or pouch, because it has the performance of recycling.Another example that can be used to form the material of liner, belt or pouch structures is ethylacrylic acid methyl esters (EMA).The surface of liner, belt or pouch can be formed by the non-braided material of porous (for example gauze), to allow release bioactive agent for example freshness prolongation or odor management agent.For odor management, one deck of this odor management structure can also comprise fragrance (for example liquid perfume), and smell strengthens mineral, and/or polymer resin (for example LLDPE).
Still with reference to Fig. 1 a, this first fin component 28 has the length of the bottom 28d from the first fin top 28c to first fin.Can predict, can by increase by the first fin top 28c and first fin bottom 28d between distance change the length of first fin component 28.The first longer fin component 28 can comprise other activating agent, and makes the food or other perishable things that are placed in the inner space 22 can deposit the longer time cycle.Similarly, second fin component 34 has the length of the bottom 34d from the second fin top 34c to second fin.Once more, can predict, the distance between the second fin top 34c and second fin bottom 34d can depend on the amount of required activating agent in the given enclose spare once more 10 and change.
As one of ordinary skill will be understood, the amount of reagent of using in conjunction with package will depend on the employed environment of this reagent for example loss and the rate of release of this reagent.Rate of release is meant that reagent is released to the speed of interior, and loss speed is meant the speed that the reagent of this release is escaped from interior.Preferably, amount of reagent of the present invention is provided so that the loss speed of the rate of release of reagent between predetermined " storage life " or used life greater than reagent, thereby the reagent that interior exists by the speed of replenishing faster than loss speed, thereby guaranteed the effective performance of reagent.The loss rate dependent of reagent is in a plurality of factors relevant with package design, structure and use.
Osed top package 10 can also comprise optional breakable element once more.With reference to Fig. 1 b-1d, at first the optional breakable element 12 that extends to second fin component 34 from first fin component 28 can be respectively applied for package 60,70 and 80.Breakable element 12 among Fig. 1 b-1d is represented as has optionally disposable frangible preferential area of weakness or preferential tear area 38 to form disposable frangible destruction obvious characteristic.This preferential area of weakness 38 can be cut, a series of perforation or high orientation zone.In addition, this disposable frangible preferential area of weakness 38 can be by separating in the mode of cutting.This preferential area of weakness 38 has stoped this, and enclose spare is destroyed before opening once more.Shown in Fig. 1 b-1d, can be with respect to the end of this first and second fin component and changes in the position of breakable element 12.Breakable element 12 is unnecessary to have this disposable frangible preferential area of weakness.For example, in certain embodiments, breakable element 12 comprises re-sealable adhesives or adhesive seal.
Shown in the package among Fig. 1 c-1d 70,80, first fin component 76,86 and second fin component 78,88 can comprise multilayer.At first forward the embodiment shown in Fig. 1 c to, first track 72 has first profile 26 and first fin component 76.First fin component 76 has layer 62 and the barrier layer 42 that comprises activating agent.This activating agent can be a kind of of above-mentioned activating agent.But barrier layer 42 stops transmission at least is preferably in fact and can be permeated by water vapour and activating agent, and also comprises oxygen, nitrogen, carbon dioxide and combination thereof in certain embodiments.(feature 86a, 86b, 86c, 86d, 88a, 88b, 88c and 88d among the feature 76a among Fig. 1 c and the 3b, 76b, 76c, 76d, 78a, 78b, 78c and 78d and Fig. 1 d and the 3c, respectively with Fig. 1 a in feature 28a, 28b, 28c, 28d, 34a, 34b, 34c and 34d similar.)
In the embodiment shown in Fig. 1 c, this layer with activating agent 62 is nearest apart from inner space 22.It is also envisioned that barrier layer 42 can be arranged to nearest apart from inner space 22.Equally, this layer with activating agent 64 is nearest apart from inner space 22.It is also envisioned that barrier layer 44 can be arranged to nearest apart from inner space 22.
With reference to Fig. 1 d, first track 82 has first profile 26 and first fin component 86.This first fin component 86 comprises that this comprises the layer of activating agent 62, barrier layer 42 and diffusion zone 66.This activating agent can be a kind of of above-mentioned activating agent.But barrier layer 42 stops transmission at least is preferably in fact and can be permeated by water vapour and activating agent, and also comprises oxygen, nitrogen, carbon dioxide and combination thereof in certain embodiments.Diffusion zone 66 is set at this and has the layer of activating agent 62 and the opposite side of barrier layer 42.
Second track 84 has second profile 32 and second fin component 88.Second fin component 88 of Fig. 1 d has layer, barrier layer 44 and the diffusion zone 68 that comprises activating agent 64.This activating agent 64 can be a kind of of above-mentioned activating agent.But barrier layer 44 stops transmission at least is preferably in fact and can be permeated by water vapour and activating agent, and also comprises oxygen, nitrogen, carbon dioxide and combination thereof in certain embodiments.Barrier layer 44 can comprise a kind of in the above-mentioned barrier material.Diffusion zone 68 is set at this and has the layer of activating agent 64 and the opposite side of barrier layer 44.
First and second fin components 86,88 diffusion zone 66,68 separately can the suitable material of enclose spare in-to-in constitutes by allowing activating agent to arrive once more in comparatively faster mode.Thereby providing can seepage water, water vapour, oxygen, nitrogen, carbon dioxide, ethene, volatility is active and or the material of non-volatile property activating agent can be used for this diffusion zone.The example of diffusion zone comprises the poly-mer of following material, copolymer, compound, extruding, extrusion, coating or lamination: low density polyethylene (LDPE) (LDPE), linear low density polyethylene (LLDPE), low density polyethylene (LDPE) (VLDPE) very, metallocene (mPE), polypropylene (PP), acrylonitrile-butadiene-styrene (ABS), polyamide 6, polyamide 66 and copolyamide thereof, polyvinylchloride (PVC), acrylic acid, Polybutylene Terephthalate (PBT), thermoplastic polyester (TPE), ethylene/ethyl acrylate (EEA), ethylene/vinyl acetate (EVA), polystyrene (PS), high impact polystyrene (HIPS), the distortion polystyrene, ethylene-vinyl alcohol (EVAL or EVOH), polyacrylic acid (PAA), poly(lactic acid) (PLA), filled polymer, hydrophilic high molecular polymer (hydrophilicnanocomposite polymers), polymethyl methacrylate (PMMA), thermoplastic rubber, polydimethyl diloxanes (PDMS), polymethylpentene (PMP), polyvinyl acetate (PVA), polyvinyl alcohol (PVAL), and acetate fiber plastics (CA).
As one of ordinary skill will be understood, the polymeric material of same type can be used to constitute matrix, barrier or diffusion zone, depends on percentum, this material quantity (for example thickness of layer component) and/or the job operation in layer component of this material in layer component.Thereby the particular polymers material depends on its consumption and occupation mode as the use of the component of matrix, barrier or diffusion zone.
Diffusion zone 66,68 assists to control the amount of the activating agent that is communicated with inner space 22.Especially, diffusion zone control activating agent is released to the amount in the package and is equal to or greater than the exterior amount of package that is lost to so that enter the amount of interior.Thereby the amount of the activating agent that is communicated with inner space 22 of control has improved once more the storage life before the use of food, perishable things or other content in the enclose spare by the activating agent of guaranteeing to exist q.s in package.Diffusion zone also is used to guarantee the correct rate of release when the activating agent in use time of enclose spare once more.
In the embodiment shown in Fig. 1 d, diffusion zone 66 is nearest apart from inner space 22.It is also envisioned that barrier layer 42 can be arranged to nearest apart from inner space 22.Equally, diffusion zone 68 is apart from inner space 22 nearest 64.It is also envisioned that barrier layer 44 can be arranged to nearest apart from inner space 22.
This track, profile, fin component and disposable frangible element typically 25 comprise one or more polymer resins.This track, profile, fin component and disposable frangible element can comprise one or more olefin polymerizations separately, include but not limited to polyethylene, polypropylene and combination thereof.Some not the polyethylene of Limit Type comprise low density polyethylene (LDPE) (LDPE), linear low density polyethylene (LLDPE), high density polyethylene (HDPE) (HDPE), medium density polyethylene (MDPE) and the combination.Other non-restrictive example comprise plastics, rubber, ethene-vinyl acetate (EVA), EMA, polymethylpentene copolymer, polyisobutene, polyolefin ionomers (polyolefinionomers), cyclic olefin copolymer (COC) or its combination, comprise polyethylene and/or polypropylene.
One or more in this track, profile, fin component and/or the disposable frangible element can be made of multilayer.The multilayer of this track, profile, fin component and disposable frangible element can be separately for example handled coating or lamination forms by extrusion or other.
The relative film that constitutes the relative main body panel 16,18 of polymeric bags dress can be formed by one or more polymer resins.This relative main body panel 16,18 can comprise one or more polymer resins, includes but not limited to polyethylene, polypropylene and combination thereof.Some not the polyethylene of Limit Type comprise low density polyethylene (LDPE) (LDPE), linear low density polyethylene (LLDPE), high density polyethylene (HDPE) (HDPE), medium density polyethylene (MDPE) and the combination.Other non-restrictive example comprise plastics, rubber, ethene-vinyl acetate (EVA), EMA, polymethylpentene copolymer, polyisobutene, polyolefin ionomers (polyolefin ionomers), cyclic olefin copolymer (COC) or its combination, comprise polyethylene and/or polypropylene.
And relative main body panel 16,18 of the present invention can be made of multilayer, comprises by extrusion or other handling for example coating or these layers of lamination bonded assembly.Pigment, metal ingredient, paper and/or paper/plastics complex can also be attached to polymeric bags of the present invention the layer in or on.
Optionally slide block structure 36 can be made by suitable poly-mer 25 materials, nylon for example, polypropylene, polyethylene, polystyrene, polyethylene and polyacrylic copolymer, polycarbonate, polyester, polyacetal, or propylene-butadiene-styrene copolymer.The particularly preferred composition that is used to make slide block structure 36 is polypropylene, polycarbonate or polyester.Slide block structure 36 can be made by injection moulding.
Similarly, this relative main body panel 16,18 (for example shown in Fig. 1 a-1d, the 3a-3c) can form barrier layer, and it in fact at least can seepage water steam and activating agent, and in certain embodiments, can also oxygen permeable, nitrogen, carbon dioxide or its combination.Thereby this relative main body panel 16,18 can comprise the material similar to formation fin portion barrier layers noted earlier 42,44.This relative main body panel 16,18 can provide and be arranged on package outside or in-to-in barrier layer.
This relative main body panel 16,18 can be made of multilayer.For example, this relative main body panel 16,18 can comprise the laminated film tack coat that is attached to fin component.This laminated film tack coat can be made by various materials, ethene-vinyl acetate (EVA) for example, acid anhydride distortion polyolefin (anhydride modified polyolefins), acid anhydride distortion ethylene-acrylic acid, acid anhydride distortion EVA, acid distortion EVA, acid distortion ethylene-acrylic acid, non-setting polyolefin distortion EVA poly-mer, or its combination.Some acid anhydrides are out of shape polyolefinic example and comprise acid anhydride distortion high density polyethylene (HDPE) (HDPE), acid anhydride modified low density polyethylene (LDPE) and acid anhydride distortion linear low density polyethylene (LLDPE).
An example of three layer main body panel (not shown) comprises the ground floor that has with above-mentioned formation fin portion barrier layers 42,44 identical materials, laminated film tack coat and by polyolefin for example LDPE, HDPE, LLDPE or its 3rd layer of constituting.In this embodiment, ground floor preferably is arranged on this main body panel inside, and the laminated film tack coat is arranged between this first and the 3rd layer.This main body panel will be used in the mode identical with aforementioned body panel 16,18.
The assembly of osed top enclosed construction (track that for example has integrally formed interlocking profile and fin component) can be attached on the main body panel of package by handling for example heat seal, welding (for example ultrasonic welding) or blocking once more.Employed processing depends on and constitutes this bag and the material of osed top enclosed construction once more.Especially, heat seal is the processing that material is fused or is fused together.The 3rd material processing that similar material is adhered to one another in the middle of welding is to use.To be enough at least pressure cause the adjacently situated surfaces of layer contact with optional temperature increase to obstruction adheres to and do not need the leak free processing.
Fin component can be to adhere to respect to main body panel with mode different shown in Fig. 1 a-1d.With reference to Fig. 3 a-3c, the opening portion of enclose spare 110,120,130 is shown and comprises a pair of first and second relative main body or the wall panel 16,18 once more, and it has constituted package body and has formed inner space 122.With reference to Fig. 3 a, what be connected to first main body panel 16 is first fin component 28 that has first track 24 of first profile 26 and extend downwards from this first profile 26 usually.First main body panel 16 has outside face 16a and inside face 16b.First fin component 28 has outside face 28a and inside face 28b.What be connected to second main body panel 18 is second fin component 34 that has second track 30 of second profile 32 and extend downwards from this second profile 32 usually.Second main body panel 18 has outside face 18a and inside face 18b.Second fin component 34 has outside face 34a and inside face 34b.Outside face 16a is attached to inside face 28b.Outside face 18a is attached to inside face 34b.This first and second profile 26,32 meshes mutually releasedly so that seal for package 110 provides once more osed top.
Among the embodiment shown in Fig. 3 a, first fin component 28 comprises activating agent 50.More particularly, activating agent 50 can be a kind of in the aforementioned activating agent.Second fin component 34 comprises activating agent 52.More particularly, activating agent 52 can be that aforementioned freshness prolongs a kind of in the agent.
Activating agent 50 can 28 extruding of first fin component.First fin component 28 can be injected into activating agent 50.It is also envisioned that activating agent 50 can be sprayed, brush, apply, be laminated or stamped onto on this first fin component 28.
Similarly, activating agent 52 can 34 extruding of first fin component.Second fin component 34 can be injected into activating agent 52.It is also envisioned that activating agent 52 can be sprayed, brush, apply, be laminated or stamped onto on this second fin component 34.
Shown in Fig. 3 b-3c, this first fin and second fin component can comprise multilayer.At first forward the embodiment shown in Fig. 3 b to, osed top package 120 comprises first track 72 and second track 74 once more.First track 72 has first profile 26 and first fin component 76.First fin component 76 has layer 62 and the barrier layer 42 that comprises activating agent.This activating agent can be a kind of of above-mentioned activating agent.Barrier layer 42 is preferably in fact and can be permeated by water vapour and activating agent, and also comprises oxygen, nitrogen, carbon dioxide and combination thereof in certain embodiments.
In the embodiment shown in Fig. 3 b, this layer with activating agent 62 is nearest apart from inner space 122.It is also envisioned that barrier layer 42 can be arranged to nearest apart from inner space 122.Equally, this layer with activating agent 64 is nearest apart from inner space 122.It is also envisioned that barrier layer 44 can be arranged to nearest apart from inner space 122.
The enclose spare once more 120 of Fig. 3 b is shown as has optionally disposable frangible element 112.This disposable frangible element 112 designed to be used the purpose identical with the disposable frangible element 12 of Fig. 1 b-1d.
With reference to Fig. 3 c, osed top package 130 is shown as and has first track 82 and second track 84 once more.First track 82 has first profile 26 and first fin component 86.This first fin component 86 comprises that this comprises the layer of activating agent 62, barrier layer 42 and diffusion zone 66.This activating agent can be a kind of of above-mentioned activating agent.Barrier layer 42 is preferably in fact and can be permeated by water vapour and activating agent, and also comprises oxygen, nitrogen, carbon dioxide and combination thereof in certain embodiments.Barrier layer 42 can comprise a kind of in the aforementioned barrier material.
Diffusion zone 66 can comprise a kind of in the aforementioned diffusion layer material.Diffusion zone assists to control the amount of the activating agent that is communicated with inner space 122.Diffusion zone 66 is set at this and has the layer of activating agent 62 and the opposite side of barrier layer 42.The amount of the activating agent that is communicated with the inner space of control has improved once more the storage life before the use of food, perishable things or other content in the enclose spare by the activating agent of guaranteeing to exist q.s in package.Diffusion zone also is used to guarantee the correct rate of release when the activating agent in use time of enclose spare once more.
Also show second track 84 among Fig. 3 c with second profile 32 and second fin component 88.Second fin component 88 of Fig. 3 c has layer, barrier layer 44 and the diffusion zone 68 that comprises activating agent 64.This activating agent can be a kind of of above-mentioned activating agent.
In the embodiment shown in Fig. 3 c, diffusion zone 66 is nearest apart from inner space 122.It is also envisioned that barrier layer 42 can be arranged to nearest apart from inner space 122.Equally, diffusion zone 68 is nearest apart from inner space 122.It is also envisioned that barrier layer 44 can be arranged to nearest apart from inner space 122.
Alternatively, can use adhesive seal as fastener of the present invention or closure elements once more.This sealing has been used and has been applied to the formulation of the seal bond once more material that constitutes on the arbitrary of this package or two films.This adhesives can be applied to intermediary base strip alternatively.Can predict, other enclosed constructions except adhesive seal and slide fastener also can be used for embodiments of the invention.
Enclose spare once more 10 shown in Fig. 1 a and the 3a and 110 can be used for user's storage food or for example remaining food of other perishable things.During the method for operation of enclose spare 10 once more, one or more food or perishable things are placed on package 10 inside 22, and fastener 14 is placed on detent position.When this food moves near activating agent and this food when still being placed on this inside, humidity in this food or level of wetness activate freshness and prolong agent 50 or 52, thereby stop addling of food.Open package 10 promptly is placed on the open position to osed top fastener 14 once more, also can should activate reagent 50 or 52 in inside 22 by allowing air admission.
Shown in Fig. 1 b, 1c, 3b and 3c, about the position of activating agent with respect to breakable element, osed top package 60,120 and the 70, the 130th is different once more.For example, the activating agent 50,52 in the package 60 of Fig. 1 b is set at breakable element 12 tops, thereby separates with inside before use, and the activating agent 62,64 in the package 70 is set at the above and below of breakable element 12.Usually, the activating agent in the package can be arranged on top, above and below or the below of this disposable frangible element.
Package with breakable element can be used for user's storage food or other perishable things.During the method for operation of enclose spare 60 once more or 70, breakable element 12 is destroyed, and perishable things is placed on the inside 22 of package 60 and 70, and seals once more and along fastener 14 enclose spares 60 and 70 along breakable element 12.If prolonging agent, freshness is set at the breakable element top, with osed top package 60 is similar once more, can activate this freshness prolongation agent near moving this reagent (for example opening by this package during the perishable products initial placement is gone into this inside) with based on entering this in-to-in air based on food.If this freshness prolongs the above and below that agent is set at breakable element, with osed top package 70 is similar once more, can be based near food moving and activate this freshness and prolong agent this reagent, and this food still is placed on this inside, and activates this freshness prolongation agent based on entering this in-to-in air.Usually, the package that the freshness with the breakable element of being arranged on below prolongs agent is preferably and is used for the user and uses, and is not opened up to this package because this reagent can not be exposed to air, thereby has increased service life of this reagent.
Package with breakable element also is fit to for dissimilar commercialization formation, filling and sealing foodstuff package operation (" FFS operation ").This package can be used for dissimilar FFS operations, depends on this freshness and prolongs the position of agent with respect to breakable element.Have the package that the freshness that is arranged on disposable frangible element top prolongs agent and be applicable to, finding time in fact by this disposable frangible element during this pack closure, this has FFS operation of the interior of food.Because this food is placed in the environment of finding time, so stoped addling of this interior before this disposable frangible element is destroyed.Yet in case be opened, this freshness prolongs agent and addles with regard to stoping, thereby the freshness of having removed below disposable frangible element prolongs agent.On the contrary, have the package that the freshness that is arranged on disposable frangible element below or above and below prolongs agent and be applicable to, during this pack closure, do not find time or only part is found time that this comprises FFS operation of the interior of food by this disposable frangible element.The freshness that is arranged on this disposable frangible element below prolongs agent can stop addling of the food that is arranged on this interior, thereby and prolongs Keeping life.The layout that this freshness prolongs agent and disposable frangible element is applicable to known food with high rates of spoilage, for example cheese.Usually, the package with the freshness prolongation agent that is arranged on disposable frangible element top is preferably the commercial operation that is used for food is placed on the package of finding time, and is not opened because this reagent can not be used up to package.
This package can be formed by any suitable material, for example is suitable for storing or collecting the thermoplastic material that article comprise perishables storage.This comprises the enclose spare once more of common size certainly, and for example pint stores and freezer bag, quart storage and freezer bag, and gallon storage and freezer bag.This once more the osed top package typically by polymeric material for example polyolefine material form.The non-restrictive example of polyolefine material comprises polyethylene, polypropylene, polystyrene, and combination.For example, some polythene materials comprise high density polyethylene (HDPE) (HDPE), low density polyethylene (LDPE) (LDPE), linear low density polyethylene (LLDPE), and combination.It is also envisioned that, materials such as plastics, rubber, ethene-vinyl acetate (EVA), EMA, polymethylpentene copolymer, polyisobutene, polyolefin ionomers (polyolefini onomers), cyclic olefin copolymer (COC) or its combination, comprise polyethylene and/or polypropylene, these also can be used to form the package of osed top once more of the present invention.Among the present invention, the thickness of osed top package can change once more, but generally be from about 0.5mil to about 5mil, more particularly, be to about 3mil from about 1mil.
Here as previously mentioned, activating agent of the present invention can be used in combination with the fin component of the fastener of osed top package once more.Alternatively and/or in combination, activating agent of the present invention can be used in combination with the main body panel of osed top package once more, as in common unsettled U.S. Patent application [lawyer's recording mechanism 086012-38700-USPT], further describing, here by reference in conjunction with the full text content of this application.
Can predict, can use other or optional layer to form the package of osed top once more that shows and describe here.For example, freshness can be prolonged enhancement layer and add or be attached in the main body panel, thereby replace or be attached to use on the fin component.Freshness prolongs enhancement layer can strengthen the transmission that freshness prolongs agent along with the humidity that increases.The humidity increase causes the corresponding bacteria growth through regular meeting, thereby causes food spoilage to increase.The example that freshness prolongs enhancement layer is polyvinyl alcohol (PVOH).
Though show with reference to illustrated embodiment and described disclosed package with activating agent, those of ordinary skills will be understood that and/or can determine many equivalents of these embodiment.These equivalents are contained by the scope of the disclosure and the accompanying claims.
For example, one of ordinary skill in the art will appreciate that the present invention has the application of various packages and container, comprise osed top bag and liner once more, rigid container is rigid trash containers for example, plastic container and lunch box, and food Package spare bag and paillon foil.Similarly, one of ordinary skill in the art will appreciate that the present invention has the application for other reagent except freshness prolongs agent, for example odor management agent provides the reagent or the content disclosed herein of expectation function or effect with other in package.
Unless provide especially, when using article " " when coming modification noun here, they can be understood as and comprise one or more than a noun of being modified.
Claims (20)
1. osed top package once more comprises:
A pair of relative main body panel, this main body panel links together along the bottom of a pair of opposite side and this opposite side of bridge joint, and this main body panel limits and this bottom opening opposing;
The fastener of osed top once more along this opening extension, comprise a pair of polymeric track, each track comprises complementary elements and fin component, this complementary elements is engaged with each other releasedly, each fin component usually from this once more the osed top element extend downwards the bottom of enclose spare once more towards this; With
With the activator that at least one fin component is associated, be used for this once more the osed top interior be communicated with.
2. the package of osed top once more as claimed in claim 1, wherein at least a mode by brush, coating, injection, lamination, spraying and punching press is applied at least one fin component with this activating agent.
3. the package of osed top once more as claimed in claim 1, wherein this activating agent and at least one fin component extruding.
4. the package of osed top once more as claimed in claim 3 wherein is distributed in the form of this activating agent with microcapsules at least one fin component.
5. the package of osed top once more as claimed in claim 1, wherein activating agent is included in the active agent layer, and this active agent layer is connected at least one fin component by at least a mode in bonding, extrusion, heat-sealing and the welding.
6. the package of osed top once more as claimed in claim 1, wherein activating agent is included in in coating, liner, pouch and the belt that is applied at least one fin component at least one.
7. the package of osed top once more as claimed in claim 1 also comprises:
The structure that the selective actuation activating agent discharges.
8. the package of osed top once more as claimed in claim 1 wherein activates this activating agent by humidity.
9. the package of osed top once more as claimed in claim 1, wherein this activating agent is that the freshness that comprises isothiocyanate compound prolongs agent.
10. the package of osed top once more as claimed in claim 9, wherein this freshness prolongation agent also comprises acid.
11. the package of osed top once more as claimed in claim 9, wherein this freshness prolongation agent can also comprise spices.
12. the package of osed top once more as claimed in claim 1 also comprises:
Between this fin component, extend and be arranged on this inside and can seal disposable frangible element between the fastener once more.
13. the package of osed top once more as claimed in claim 12, wherein this activating agent is set at the top of this disposable frangible element.
14. the package of osed top once more as claimed in claim 12, wherein this activating agent is set at the below of this disposable frangible element.
15. the package of osed top once more as claimed in claim 1 also comprises:
With at least one barrier layer that is associated of this main body panel, be used to form about this in-to-in barrier environment.
16. the package of osed top once more as claimed in claim 1, wherein this activating agent is included in the active agent layer, this once more the osed top package also comprise:
The barrier layer that is associated with at least one fin component.
17. the package of osed top once more as claimed in claim 16, wherein this active agent layer is set to nearer apart from this inside than barrier layer.
18. the package of osed top once more as claimed in claim 1 also comprises:
With the diffusion zone that at least one fin component is associated, this diffusion zone and this comprise that the active agent layer of activating agent is adjacent.
19. the package of osed top once more as claimed in claim 18, wherein this diffusion zone is configured to nearer apart from this inside specific activity agent layer.
20. an osed top package once more comprises:
The first relative main body panel with inside face and outside face;
The second relative main body panel with inside face and outside face, this first and second main body panel is connected along the bottom of a pair of opposite side with this opposite side of bridge joint, thereby at one end form the opening of opening, these first and second main body panel that are connected form the inner space; With
Osed top polymeric seal once more, end along each inside face of these first and second relative main body panel extends, this once more the osed top polymeric seal comprise first polymeric track and second polymeric track, first polymeric track comprises first fin component and first complementary elements, this first fin component usually from this first once more closure elements extend downwards towards the bottom, this first fin component comprises ground floor with activating agent and at least as the second layer of barrier layer, second polymeric track comprises second fin element and second counterpart, this second fin component usually from this second once more closure elements extend downwards towards the bottom, this second fin component comprises with activating agent the 3rd layer at least and as the 4th layer of barrier layer, this first and second complementary elements is engagement releasedly each other.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US54334504P | 2004-02-10 | 2004-02-10 | |
| US60/543,344 | 2004-02-10 | ||
| US60/543,345 | 2004-02-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1918039A true CN1918039A (en) | 2007-02-21 |
Family
ID=37738630
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200580004593 Pending CN1918040A (en) | 2004-02-10 | 2005-02-10 | Reclosable packages with active agents |
| CN 200580004582 Pending CN1918039A (en) | 2004-02-10 | 2005-02-10 | Reclosable packages with active agents |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200580004593 Pending CN1918040A (en) | 2004-02-10 | 2005-02-10 | Reclosable packages with active agents |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN1918040A (en) |
-
2005
- 2005-02-10 CN CN 200580004593 patent/CN1918040A/en active Pending
- 2005-02-10 CN CN 200580004582 patent/CN1918039A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| CN1918040A (en) | 2007-02-21 |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20070221 |