CN1177734C - Microwave popcorn bag with efficienjt charge appangement and internal product barrier - Google Patents
Microwave popcorn bag with efficienjt charge appangement and internal product barrier Download PDFInfo
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- CN1177734C CN1177734C CNB998167142A CN99816714A CN1177734C CN 1177734 C CN1177734 C CN 1177734C CN B998167142 A CNB998167142 A CN B998167142A CN 99816714 A CN99816714 A CN 99816714A CN 1177734 C CN1177734 C CN 1177734C
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- packaging bag
- big envelope
- popcorn
- microwave
- corn kernel
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
- B65D81/34—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents for packaging foodstuffs or other articles intended to be cooked or heated within the package
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
- B65D81/34—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents for packaging foodstuffs or other articles intended to be cooked or heated within the package
- B65D81/3446—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents for packaging foodstuffs or other articles intended to be cooked or heated within the package specially adapted to be heated by microwaves
- B65D81/3461—Flexible containers, e.g. bags, pouches, envelopes
- B65D81/3469—Pop-corn bags
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D2205/00—Venting means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D2581/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
- B65D2581/34—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents for packaging foodstuffs or other articles intended to be cooked or heated within
- B65D2581/3401—Cooking or heating method specially adapted to the contents of the package
- B65D2581/3402—Cooking or heating method specially adapted to the contents of the package characterised by the type of product to be heated or cooked
- B65D2581/3421—Cooking pop-corn
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D2581/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
- B65D2581/34—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents for packaging foodstuffs or other articles intended to be cooked or heated within
- B65D2581/3437—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents for packaging foodstuffs or other articles intended to be cooked or heated within specially adapted to be heated by microwaves
- B65D2581/3486—Dielectric characteristics of microwave reactive packaging
- B65D2581/3494—Microwave susceptor
Abstract
The present invention relates to an improved microwave popcorn packaging bag, wherein the present invention comprises popcorn particles prepared in a microwave oven and used for puffing in one time. The packaging bag comprises a plurality of panels penetrated by microwaves, and the panels are mutually combined to form an inner cavity for storing and puffing corn particles. The present invention has an optimal scheme that one panel comprises a sensor for heating the corn particles, and the corn particles are basically evenly distributed along the whole surface zone of each sensor. A sealing cover for containing the non-puffing corn particles is made of other materials penetrated by the microwaves. Moreover, the sealing cover has enough strength to contain and protect the corn particles in the process of the transportation and the storage, but when the sealing cover is subjected to the inner pressure force generated in the process of the corn particles puffing, the sealing cover is exploded. One of the panels of the packaging bag can preferably release adhesives to bind the packaging bag so that the panel can be removed to touch the popcorn after the puffing process is carried out. Preferably, the sealing cover is made of the material the same as the removable panels, and moreover, any oil ingredients are best isolated from the rest of the packaging bag in the storage time before puffing.
Description
Invention field
The present invention relates to a kind of microwave popcorn packaging bag of reinforcement, this packaging bag can realize the higher efficient that pops with the cost that is lower than existing packaging bag.Particularly, the present invention relates to the corn kernel on the susceptor (susceptor) in being embedded at such packaging bag, relevant oil and the efficient arrangement of seasonings.More particularly, the present invention relates to produce the barrier layer of a kind of anti-moisture and grease, this barrier layer can make oil corn kernel and oily isolated with packaging bag and surrounding environment, up to the beginning popcorn.
Background of invention
For a long time, popcorn has become a kind of wide ace-high snack food, and its popularity degree forms a support huge, high profit to food industry.Yet,, thereby traditional relate to edible oil heat, dirty and need take a long time the pan cooking method that heats rareness day by day because the customer has recognized the importance of healthy and time day by day.Though can make the problems referred to above obtain to alleviate to a certain degree, be to utilize a kind of container in traditional micro-wave oven, to prepare popcorn one of this field great innovation by more helping healthy oil and hot air popcorn popper.
Popcorn normally with standby, can shelve that packaging bag stable, anti-leak sold and store, simultaneously, described packaging bag also can be used as the container of microwave oven cooking.These packaging bags be designed to quick-fried corn particle once and other comestible composition (for example aerating agent, edible oil and seasonings/spices, total being referred to as " seasoning matter (slurry) ") to be stored in one can reduce storage request and traffic cost, in the crushable structure.The material that forms packaging bag can see through microwave energy, heats thereby whole packaging bag can be put into micro-wave oven.When to the supplying products microwave energy, the popcorn particle pops, and presents familiar popcorn shape, simultaneously, and the popcorn that flexible packaging bag is expanded and swollen with receiving volume.
The US Patent 4,571,337 of authorizing Cage has disclosed a kind of common microwave popcorn packaging bag.This is one traditional " the grocery bag " that have flat bottom and sealed top.The inside pleated support exhibition sheet that is arranged on the side can allow packaging bag to take relative more flat shape so that transport and store.In the process of cooking, the steam that is produced by seasoning matter and corn kernel is maintained in the packaging bag, makes to support the expansion of exhibition sheet and sack is swollen.If produce too much steam, corresponding pressure can produce air extractor vent on the angle of top seal.When corn particle pops can be edible the time, can pull two relative angles of packaging bag diagonally and the top of the packaging bag that swells is opened.
Another kind of common pack pattern is at the bottom of the wedge shape of authorizing in the US Patent 4,596,713 of Burdette or the packaging bag of extruding die bed.Crimping and/or high-temperature adhesives sealings (not having bottom panel) are all passed through in the top of this packaging bag and bottom, and the edge of front panel (panel) and rear panel combines by side panel, and support exhibition sheet extends into described packaging bag.The popcorn raw material is put into the middle part between top and bottom of this packaging bag, and top and bottom are folded on the middle part, keep this laying state in transportation and storage process.Different with the described packaging bag of above Cage patent, the Burdette packaging bag can not be upright by its bottom.Therefore, must be placed in the micro-wave oven with its front panel or rear panel.Along with corn kernel pops, the volume of the increase of steam and popcorn can cause end and support exhibition sheet to launch, thereby packaging bag is swollen.This packaging bag can be opened from one end thereof after cooking equally, so that touch wherein quick-fried good popcorn.
At the beginning, the significant difference of the heating mechanism of micro-wave oven and traditional stove has hindered the success of microwave popcorn product.In common saucepan or pan, the corn kernel that does not pop can be promptly heated on flat, a very hot surface, thereby causes the steam pressure in the corn kernel to break through hard shell, makes corn kernel present " popping " state that people are familiar with.When corn kernel popped, they promptly formed much bigger and light form, made it jump out of the surface of pan, and the fine and close corn kernel that is not popped replaces.This specific character is unusual actv., because the corn kernel that still needs to heat can be owing to gravity falls to pan, the corn kernel that tends to pop then can be shifted to relative colder zone, pan top.On the other hand, micro-wave oven can not produce such thermal drop usually.On the contrary, the microwave energy that micro-wave oven distributed is to penetrate the popcorn packaging bag relatively equably.In addition, be enough to energy that corn kernel is finally popped though most of micro-wave oven can produce, energy is common still too low, deficiency so that corn kernel pop apace.Because the corn kernel structure is certain to some difference, thereby the speed that some corn kernel can pop than other corn kernel is fast.So, absorbing microwave energy in the hope of when popping at slower corn kernel, corn kernel can become dry and final burned or burning faster.
Available in the market most of microwave popcorn container all adopts a susceptor to solve the heating problems relevant with microwave.Susceptor is an extremely thin sheet material, the polyester of vacuum metallization processes normally, and it can heat up when standing microwave energy and radiant heat energy apace.When susceptor was attached to the packaging bag panel of corn kernel below, its effect was similar to the generating surface of pan.Susceptor can make panel and adjacent corn kernel heat up apace, and then the process acceleration that popcorn is popped.Owing to can shorten cooking time, early the corn kernel that pops will less bear unnecessary energy.In addition, because susceptor can concentrate on the bottom surface with most of heat, thereby make the lighter corn kernel that pops rise to higher in the packaging bag, relative colder zone.Test also shows, compares with the packaging bag of not adopting susceptor, adopts the packaging bag of susceptor can make the volume that pops of corn kernel bigger.
At the bottom of the described wedge shape of Burdette patent more than for example in the packaging bag, susceptor and corn kernel are arranged near the middle part of packaging bag, use making the corn kernel that pops have enough spaces to flee from the heating of susceptor.So the manufacturing process of making these packaging bags must be positioned adjacent to susceptor with corn kernel, do not allow them to fall the two ends of packaging bag owing to action of gravity.This is realizing by a vertical filling process at present, that is, the bottom fold of package length direction to its middle part, is injected corn kernel and seasoning matter from the top of opening wide.Top seal with packaging bag gets up subsequently, and it is folded on the middle part, thereby corn kernel is held in place.The corn kernel that so just can avoid not popping accumulates in the end, and reduces the required size of susceptor.European patent 88304722.7 has been described this technology in more detail.
Though vertical filling process can be positioned substantially at corn kernel and seasoning matter the middle part of the close susceptor of packaging bag, is not to do very goodly.This technology can not make corn kernel distribute equably along susceptor, but makes corn kernel trend towards being collected in bottom and middle part along fold line.Usually, in the packaging bag of this vertical filling, corn kernel and seasoning matter only cover about 25% of susceptor.This uneven gathering can be reduced the efficient pop, because the corn kernel that is close to susceptor is faster than the firing rate away from the corn kernel of susceptor.So,, whole cooking time is prolonged owing to early and between popping a delay is being arranged.This result can be alleviated to such degree, that is, seasoning matter can liquefy in heat process and distribute along susceptor, but this needs regular hour and energy, can not be used to heat corn kernel effectively.In addition, before seasoning matter spread all over susceptor, " doing " zone of susceptor will produce a large amount of useless heats.If do not have adjacent corn kernel or oil to absorb such heat, susceptor just may hotly must be enough to make the burned even burning of packing.The uneven distribution of corn kernel and seasoning matter also can produce packaging bag in irregular shape, so just needs bigger space to transport and store.
Authorize people's such as Brandberg US Patent 4,038,425 and instructed a kind of popcorn packaging bag, this packaging bag is not vertical filling, but communicates with a less outer chamber holding corn kernel and seasoning matter before popping.This intention is, before corn kernel pops they is contained in the capacitor, can be convenient to like this contain heat and reaches higher temperature.This design can make corn kernel and seasoning matter leave the packaging bag fold line, but its cost is to make the corn kernel that do not pop distribute uniformly and can not make the corn kernel that pops flee from colder zone to packaging bag along susceptor.Another problem of Brandberg packaging bag is because storage chamber is communicated with packaging bag internal freedom ground, therefore, if can not keep correct orientation, just can not stop popcorn seasoning matter and corn kernel to overflow into packaging bag in transportation and storage process.In addition, exterior chamber can produce a fitfull shape, may be difficult to (and expensive) and make, and make transportation and reservoir volume excessive.
Present microwave popcorn packaging bag comprises a mechanism that can hold the oiliness composition in the seasoning matter.Because corn kernel and seasoning matter generally are loose in present packaging bag, thereby each packaging bag panel itself is to be designed to be enough to do not see through the oiliness composition, thereby prevents that each panel from being soaked into (usually said " infiltration " phenomenon).For this reason, adopt special quality " grease-proof paper " at present.
Grease-proof paper is normally made with fiber very long, that closely interweave.Fiber is long more, knits closely more, and the grease proofness of paper is good more.By in paper-making process, paper being handled, also can realize effect resistant to oil with fluorocarbon (for example FC-807 of 3M board).Grease proofing effect also is the function of coating fluorocarbon quantity.
The anti-time of penetration of special quality grease-proof paper can be up to six month or is longer, but this protection is very high at the cost of material and manufacture view.Because the also anti-printing ink of grease-proof paper, thereby also be difficult to print thereon.Therefore, adopt the double casing bag usually, be grease-proof paper on its inside face, and be the paper that to accept printing ink on its outside face.For example, internal layer can adopt the grease proofing craft paper of bleaching of about 25 pounds/order, and the outer market bleach craft paper that can adopt about 30 pounds/order.Inside and outside two-layer and adhesives between the two can provide enough grease proofnesses together, but its disadvantage comprises: heavier relatively thereby can improve traffic cost, relatively hard thereby can hinder the packaging bag expansion.Also the someone adopts the grease-proof paper with combination and the monolayer package bag of carbon fluorine treatment surface, but oil is preserved in these packaging bags usually not too easily well in commercial acceptable a period of time.
The US Patent 5,461,216 of authorizing McDonald is by increasing the grease proofing problem that protection solves the monolayer package bag at weakness zone.McDonald observes, and existing monolayer package bag can not prevent phenomenon of osmosis, but these infiltrations usually occur in fiber and/or the carbon fluorine is handled on seam, fold line and the angle of being damaged.Therefore, refined fiber is adopted in the instruction of the device of McDonald, and these fibers trend towards stretching when paper is folded or bending rather than fracture.So just limited and oil may have been inhaled the fiber end of the exposure of panel.In addition, " grease protector " adopted in the McDonald instruction, and it can stop that grease flows along more weak folding or crease place.In this article, the grease protector is described as the heat seal adhesive bar that is attached to the inside and outside surface of packaging bag along folding or crease place.
Another problem relevant with the seasoning matter of loose storage in the packaging bag is that seasoning matter must at room temperature be solid-state relatively, leaves the desired location near susceptor to prevent it from flowing.In addition, because packaging bag needs very high grease resistance preventing infiltration, and each end must be sealed especially preventing seepage, thereby will avoid liquid seasoning matter.However, liquid seasoning matter only needs less energy to heat, and makes the popcorn of final acquisition have reasonable taste usually.
In order to keep the freshness of popcorn, the popcorn packaging bag that great majority can have been bought all coats with polypropylene film so that transportation and storage.This coating can be intercepted required moisture and volatile spice in the Keeping life of product.Because the mechanism of popcorn needs that certain moisture is arranged in the corn kernel, thereby above this point is very important.Unfortunately, because present clad material encased whole packaging bag, in storage process, a lot of moisture in corn kernel and the seasoning matter all are dissipated in the air in packing and the clad material.In addition, since comparatively expensive as the material of coating, need to cover whole packaging bag and protect less relatively corn kernel of volume and seasoning matter, thereby increased unnecessary packaging bag cost.
Also introduced the multifunctional packaging bag, it can provide a kind of device of just using food containers that packaging bag is converted to after corn kernel pops.Authorize the US Patent 4,292,332 of McHam and described early stage a kind of like this packaging bag.One of them panel of McHam packaging bag comprises the line of weakness pattern of " H " shape, uses the unnecessary steam of release in the process of popping.After the process of popping finished, line of weakness helped the customer to open the package, and promptly tore panel and produced two " tongue pieces " (that is to say the upper and lower two halves of " H " shape) along line of weakness.Subsequently, these tongue pieces are folded up, so that the passage that enters container to be provided.
In the practice, when the corn kernel that expands was exerted pressure in packaging bag inside, McHam formula packing had the danger of breaking too early along the line of weakness pattern.If line of weakness can be born the pressure in the process of popping, so after corn kernel pops, line of weakness just may be sacrifices consisting of an ox, a sheep and a pig and be not easy to tear.In addition, owing to be not used for removing the handle of panel in the packaging bag, thereby the customer must first push packaging bag with tongue piece, then enters its edge is drawn back.The McHam packaging bag also lacks and is used for panel and tongue piece are pulled away from packaging bag fully to produce a macropore obtains popcorn for the customer device.
The Hunt-Wesson Co., Ltd has been introduced a kind of improvement of the groundwork to this convertible packaging bag recently.This Hunt-Wesson packaging bag comprise two parallel, along the defiber of the length direction longitudinal extension of packaging bag.These defibers to be strengthened forming by make adjacent area with the contact adhesive tape, so just make along defiber any and tear other zone that action can not be offset to packaging bag.So, after corn kernel pops, the entire portion between the defiber can be removed.So just can stay next relatively big hole to take popcorn, can not allow his hand be made dirty by greasy tongue piece for the customer.In addition, required tear line can be weakened, so that additional control to be provided.This goods can be worked well at its purpose, but the reinforcement of panel and/or reduction (for producing defiber) can cause additional material and manufacturing cost, and this preferably can be avoided.
In view of above problem, should be appreciated that need a kind of improved microwave popcorn goods, these goods should be able to make the corn kernel of higher proportion pop in the short period of time, and can not make corn kernel burned.Also need a kind of printable, flexible, cheap packaging bag, the corn kernel that it comprised is near susceptor, can keep the moisture in the seasoning matter before popping, can prevent burned, permission employing liquid condiment, and can on panel, form a big opening for taking the popcorn that pops, can be decreased to material and manufacturing cost minimum simultaneously.
Summary of the invention
The present invention relates to a kind of microwave popcorn goods that solve existing many disadvantages in the present packaging bag.In addition, these purposes can realize by the lower packaging bag design of a kind of manufacturing cost.
The keystone configuration member of goods of the present invention comprises a popcorn packaging bag, this packaging bag comprise a plurality of by flexibility, the panel made of microwave material thoroughly, these panels mutually combine and form an inner chamber.One susceptor is installed on one of each panel, near an inside face of packaging bag, and can be placed on the inside face of the close susceptor in the inner chamber by quick-fried corn kernel and seasoning matter once.This susceptor can convert microwave energy to heat, and corn particle is easy to pop and expand when being heated.
An important feature of the present invention is that seasoning matter and corn kernel distribute with homogeneous thickness with respect to susceptor.So, the heat that susceptor produced can be spread equably to corn kernel, thus make they with basically uniformly speed be heated and pop.Can improve like this about this aspect, that is, make corn kernel be scattered in the individual layer of close susceptor, make all corns kernel be positioned as close to susceptor.This feature can come to improve further like this, that is, corn kernel and seasoning matter are distributed along whole susceptor.So, the heat that susceptor produced can be passed to corn kernel and seasoning matter effectively, have only limited heat to be delivered to bag material, thereby can not cause burned.
In another embodiment of the present invention, batching is contained in a big envelope that is arranged in the packaging bag inner chamber regularly.The intensity of big envelope is enough to make it to comprise not quick-fried corn kernel to begin up to the process of popping.Yet when the steam that is subjected in the process of popping being produced by corn kernel, high temperature and expansion pressure, big envelope will be exploded broken and be discharged inclusion.Therefore, can in transportation and storage process, not quick-fried corn kernel be protected and be held in place, and when the process of popping begins, popcorn is escaped in the bigger inner chamber of packaging bag.
In a preferred embodiment of the present invention, big envelope is to make with two sheet materials that are totally independent of bag material, but still is positioned at packaging bag.The favourable part of this embodiment is that its permission big envelope is independent of packaging bag to be made separately, inserts packaging bag subsequently again.
In another embodiment of the present invention, form big envelope with a cover plate, this cover plate covers described corn batching, and adheres to the inside face of packaging bag around the periphery of batching.So big envelope becomes the packaging bag part of the whole, so just can guaranteeing prepares burden is in correct position, and saves and add the required cost of envelope material.
In another embodiment of the present invention, just constitute big envelope with the panel that forms packaging bag.This feature is achieved in that promptly, against the force together of firmly preparing burden, and these two inside faces sealed releasedly around the periphery of batching the inside face of packaging bag upper and lower panel.So, except adhesive phase, need not other material and cover in the packaging bag.
According to another aspect of the present invention, packaging bag is divided into three parts: a top section, the stage casing of an end section and between top section and end section.Susceptor and corn kernel and seasoning matter are positioned at the stage casing of packaging bag, and top section and end section are folded on the stage casing.So, batching can be remained on the stage casing part between two fold lines.So just can guarantee the well-distributed batching near susceptor, and be in the optimum position that pops.
According to another aspect of the present invention, the side panel that forms packaging bag comprises a plurality of supports exhibition sheets, and batching is along the channel layout at the packaging bag longitudinal midline place between the invagination layer line of support exhibition sheet.This layout can be strengthened the degree of freedom that corn kernel moves around packaging bag in the process of popping, and reduces the thickness of packaging bag.Corn kernel can also be remained on the middle part of the close susceptor of packaging bag like this.
According to another aspect of the present invention, a susceptor is directly installed on that surface near batching of big envelope.So no matter where big envelope is arranged in packaging bag, batching always is close to susceptor, thereby guarantees the heat of susceptor is passed to batching.Compare with the susceptor on being installed in packaging bag, do like this and can also adopt a smaller susceptor.
According to another aspect of the present invention, the corn kernel batching is to be distributed in the big envelope with homogeneous thickness, and near susceptor.So when goods are applied microwave energy, the heat that susceptor produced will pass to corn kernel equably, thereby make each corn kernel be heated and to pop with roughly the same speed.In another improvement aspect this, the corn kernel batching is that an individual layer near susceptor distributes.
According to another aspect of the present invention, susceptor can be installed on the panel of packaging bag, and big envelope is positioned near this susceptor.So, this big envelope can be used with the packaging bag of existing style.In addition, compare with the situation that comprises susceptor, the productive costs of this big envelope is lower.
According to another aspect of the present invention, big envelope is fixed on the inside face of packaging bag inner chamber.So, popping at corn kernel, after big envelope exploded and breaks, the customer can pour out quick-fried good popcorn from packaging bag, needn't take out empty big envelope in this process.
According to another aspect of the present invention, big envelope is fluid-tight basically.So, corn kernel and seasoning matter be sealed in the big envelope up to big envelope by fried broken before, the moisture that can keep corn kernel and seasoning matter remains unchanged substantially.This aspect can be improved like this, that is, the liner polyester material is to form moisture barrier in big envelope.This aspect can also be improved by the air of taking out in the big envelope, because can further the moisture in the big envelope be maintained predetermined level like this.
According to another aspect of the present invention, big envelope comprises two layers of material, and they are placed in the both sides of corn kernel batching respectively, and bonding mutually around batching.Strong must being enough to of the bind strength that is used for bonding this double-ply adhesives keeps together two layers of material in transportation and storage process, but so weak that can not bear the expansion pressure that produces when corn kernel pops in big envelope again.So when the process of popping began, the two layers of material of big envelope will be separated and corn kernel is released into the packaging bag inner chamber.
According to another aspect of the present invention, being used for adhered envelope double-ply adhesives is heat sensitive adhesive, and its bind strength reduces along with the intensification of adhesives.So, when needs bond together envelope material (, relative colder transportation and storage process), adhesives is the strongest, but but can die down when needs discharge.In a kind of modified version aspect this, susceptor is installed on that one deck of big envelope near batching and adhesives.So, can just make the very fast intensification of adhesives in the stage very early of the process of popping.
According to another aspect of the present invention, packaging bag comprises the side panel of the exhibition of can supportting, and these side panels allow front panel and rear panel to be focused on the big envelope before popping, and launch in the process of popping.The anterior layer and the back layer that form big envelope are attached to front and back panels regularly, and therefore, along with the expansion of front and back panels, the anterior layer of big envelope and back layer will be pulled away from.Two effects are arranged like this: the one, open big envelope with the not quick-fried corn kernel of release, but avoid the big envelope layer to mix mutually with the corn kernel that pops.
Improve according to of the present invention another, the edge of front panel is incorporated into the edge of side panel along two lapped seam, but and lapped seam bonds together by a releasing adhesive.But the bind strength of releasing adhesive be strong must be enough to the transportation, store and the process that pops in panel keep together.Yet this adhesives is weak again must to be enough to allow front panel is peeled off the remainder of packaging bag and need not bag material is torn.So just can in packaging bag, form a macropore for the turnover inner chamber.Can form so similarly configuration, promptly different with the situation of front panel, rear panel can be attached to side panel releasedly.
By below in conjunction with the description of accompanying drawing to preferred embodiment, can more be expressly understood other features and advantages of the present invention, described accompanying drawing shows principle of the present invention by way of example.
Brief Description Of Drawings
Fig. 1 is the top plan view in the packaging bag of the present invention outside.
Fig. 2 cuts open the sectional view of getting along the line 2-2 among Fig. 1, shows the first embodiment of the present invention, and corn kernel wherein is arranged to homogeneous thickness.
Fig. 3 is the planar side view of Fig. 1, shows the packaging bag end and is folded to the last situation afterwards in middle part.
Fig. 4 is a sectional view that second embodiment of the invention adopts, that be used to comprise and protect a big envelope of corn kernel and seasoning matter.
Fig. 5 is the sectional view that is similar to packaging bag Fig. 2, that be combined with big envelope shown in Figure 4.
Fig. 6 is the sectional view that is similar to Fig. 5, finishes with wherein popping procedure division, and packaging bag partly swells.
Fig. 7 is the block diagram of packaging bag shown in Fig. 5 and 6, and wherein the popcorn particle that popped of packaging bag swells.
Fig. 8 is the packaging bag block diagram that is similar to Fig. 7, and wherein a panel partly is removed along the part of big envelope.
Fig. 9 be similar to Fig. 2, according to the sectional view of the packaging bag of another embodiment, wherein a cover cover on the corn kernel and the inside face that is attached to packaging bag to seal corn kernel.
Figure 10 is the sectional view that is similar to Fig. 9, finishes with wherein popping procedure division, and packaging bag partly swells.
Figure 11 be similar to Fig. 2, according to the sectional view of the packaging bag of another embodiment, thereby wherein the front and back panel of packaging bag is sealed around corn kernel and is sealed corn kernel;
Figure 12 is the sectional view that is similar to Figure 11, finishes with wherein popping procedure division, and packaging bag partly swells.
Figure 13 is the schematic top plan view of Figure 11 and 12 embodiment.Wherein for the purpose of diagram, an angle of rear panel is removed from the ground, remainder top of packaging bag.
Figure 14 is the block diagram of packaging bag shown in Figure 11,12 and 13, and the corn kernel that this packaging bag has been popped swells.
Figure 15 is the block diagram that is similar to the packaging bag of Figure 14, and wherein a panel is partly removed so that obtain the interior quick-fried good popcorn of bag.
Figure 16 is the scheme drawing that is used for the preferable manufacturing process of production packaging bag of the present invention.
These accompanying drawings all are for principle of the present invention is described.The relative size of many details can be adjusted according to the commercial needs of reality, and those skilled in the art should be able to make these variations and adjustment.Identical label in each accompanying drawing is represented identical or similar part.
Description to preferred embodiment
The customer is overwhelming to the demand of microwave popcorn, and this can be proved by a large amount of popcorn products of selling every day.However, several specific characters of the packaging bag that can buy at present still seem not ideal enough.For example, material cost higher relatively (particularly comparing) with the batching cost, the process of cooking still needs a compromise selection (corn kernel that pops at high proportion and pop earlier that is corn kernel is by the compromise selection between burned).Below will describe several embodiment of the present patent application people, each embodiment is to concrete structure varied slightly in addition on total design basis.Hereinafter will be clear, the embodiment of " preferable " depends on various independent factors, such as admissible material cost and manufacturing cost, and required total complexity in the final products.
First embodiment
The present invention relates to a kind of microwave popcorn goods, total is represented by the label in the accompanying drawing 1.This packaging bag comprises quick-fried popcorn particle 2 once, can produce the edible popcorn 3 that waterfall is opened when they being put into when heating in the micro-wave oven.As shown in the figure, the keystone configuration of this packaging bag partly comprises a rectangle front panel 4, a rectangle rear panel 5 and two rectangular side panels 6 and 7, and side panel connects the side of front and back panels to form inner chamber 8.For the purpose of describing, when micro-wave oven was put in packaging bag, front panel 4 was ventricumbent those panels.
They can form panel with various sheet materials, as long as can satisfy the basic demand of packaging bag.Tearing under packaging bag must enough firmly be loaded with the opposing expection, but it must have enough flexibilities simultaneously, so that steam inside and popcorn volume energy swell packaging bag from its compressive state.If the corn kernel loosely is stored in the packaging bag, each panel should be able to be resisted seepage or stain in the transportation of expectation with in the storage time and in the process that is popping.A kind of double-layer structural is comparatively suitable, and it has the grease-proof paper internal layer of 20-25 pound/order, and this internal layer is attached to the machine-made paper skin of 25-30 pound/order.The material that is suitable for the monolayer package bag is that thickness is that about 0.5-1.0 mil, weight are the grease-proof paper of about 35-60 pound/order.But machine glazed paper also is suitable, if just may be too hard too thick.Also can be handled the surface of paper with the carbon fluorine anti-staining agent that can buy on the market (for example product of the trade mark FC-807 of 3M company).Yet, as will going through hereinafter,, just can accept low-grade grease-proof paper if adopt a big envelope to hold corn kernel and seasoning matter.
Whole four panels of packaging bag 1 have constituted a top 9 and a bottom 10.The two ends of front panel 4 and rear panel 5 must couple together with the enclose bag and hold corn kernel 2 fully.What this preferable design was taked is " tubulose " method, and wherein top 9 and bottom 10 directly interconnect.Perhaps, can comprise that a bottom panel (not shown) is to produce the sack of " grocery bag " type, as described in fwd background technology part.Two ends are such osed tops,, make the material crimping that is, or apply heat sensitive adhesive and a hot press is put in the end on inside face.The typical binders that is used for closed end comprises polyvinyl acetate or polyethylene vinylacetate.
Referring to this sectional view of Fig. 2, a susceptor 11 preferably is attached to front panel 4 to strengthen popping performance.As above background technology part was described in detail, susceptor can be made of the skim metal, and this sheet metal adheres to or steams and apply on a structural substrates (a for example polyester sheet).When susceptor was subjected to microwave energy, it was rapidly heated and to its ambient radiation heat energy.
The inclusion of packaging bag 1 mainly comprises quick-fried not quick-fried corn kernel 2 once, and they mix mutually with the seasoning matter of being made up of aerating agent, edible oil and seasonings (not shown), to strengthen the local flavor and the structure of the final popcorn 3 that obtains.Preferably adopt at room temperature stable composition need not refrigeration, if seasoning matter is loose condition (of surface) in packaging bag, they should at room temperature be solid-state so.If adopt the leakproof big envelope that will discuss hereinafter, seasoning matter also can be a liquid so.
Comparatively ideal is that the intensity and the moisture of all corns kernel in the specified packet pack all drop in the very narrow scope, thereby they are almost all popped at the same time.Yet because in fact these variablees are difficult in addition strict control, thereby required time and the heat of each corn kernel has nothing in common with each other.After some corn kernel has popped, must apply energy to whole corns kernel.If time length is long, the popcorn that early pops the very final burned even burning of dry doubling that will become.The present invention can make the short cycle of a cooking optimization, thereby avoids the problems referred to above.
Preferably, corn kernel and seasoning matter 2 distribute along susceptor 11 with homogeneous thickness " x ", and cover the whole surf zone (referring to Fig. 2) of susceptor basically.Therefore because all corns kernel are heated with much at one speed, thereby can shorten pop morning and the later corn kernel that pops between delay time, thereby can keep the moisture of quick-fried good popcorn 3 and reduce burned phenomenon.Test verifiedly, this layout can shorten the cooking time of standard, promptly from average needs 3
3/
4Minute (in this packaging bag, seasoning matter begin only to accumulate in susceptor 25% on) shorten into average needs 2
1/
2Minute.Another advantage of this layout is that seasoning matter needn't melt and flow through susceptor.So just can guarantee to begin just to transmit effectively to come from the heat of susceptor 11, and any " doing " (the promptly not being capped) zone that prevents susceptor overheats and packaging bag is burned from the process of popping.
By adopting a big susceptor 11 that must be enough to the corn kernel individual layer is distributed, can improve the performance of the popcorn that pops further.In other words, preferably all corns kernel are arranged on the front panel 4 that is close to susceptor abreast.Therefore, each corn kernel can both begin just to receive the ceiling capacity that comes from susceptor from the microwave circulation.In addition, before corn kernel began to pop, each corn kernel can receive identical energy at least, thereby made all corns kernel realize the effect that pops simultaneously.The size of susceptor and front and back panel come change according to the quantity and the size of quick-fried corn kernel once possibly, to adapt to this configuration.
As shown in Figure 2, side panel 6 and 7 includes a plurality of support exhibition sheets 12, and they allow packaging bag 1 to keep the state that flattens before preparation popcorn 2.These support exhibition sheets are formed on each side panel, that is, form inside the folding that several are parallel to the packaging bag longitudinal axis, thereby make side panel have the structure of fold or accordion shape.The rigidity of side panel will make support exhibition sheet keep compressive state, thus make packaging bag store and transportation in the relative flat state of maintenance.Yet the material of side panel must have enough flexibilities, and using expands when making the internal pressure of support exhibition sheet in being subjected to the process of popping struts.So packaging bag will swell and the quick-fried good popcorn 3 of receiving volume increase.
Because a plurality of support exhibition sheets 12 can be not too many to inner chamber 8 projections, thereby they can not hinder the free-flowing of corn kernel 3 in the process of popping.By making them can not be bonded at support exhibition sheet below (referring to Fig. 2) between the invagination layer line that whole corns kernel and seasoning matter all is placed on support exhibition sheet, can improve described degree of freedom further.In addition, because the inward flange of support exhibition sheet has formed a kind of stopping, so corn kernel can be remained on the middle part of the close susceptor of packaging bag.Another advantage that seasoning matter is placed between the support exhibition sheet is to make the gross thickness of packaging bag keep minimum.Same, this feature is also possibly according to the quantity of used corn kernel and size the change package size and/or the susceptor size of bag, but those skilled in the art should make such variation.
Susceptor 11 needn't cover whole front panel 4 so that corn kernel 2 pops efficiently, if but the part of a susceptor cover plate so just must be held in corn kernel close this part.As mentioned above, each support exhibition sheet edge can be used for preventing that corn kernel from leaving the susceptor side.Also have preferably, the corn kernel that can avoid not popping remains on end 9 and 10, can not pop fully because corn kernel can be limited in the corner that compresses.So packaging bag 1 is divided into about equally three sections by end wise: section 13, one stage casing 14, a top and an end section 15, susceptor and batching are placed on the stage casing.For guaranteeing that corn kernel can not escape from the stage casing before popping, packaging bag can be folded up, make top section and end section be folded in (as shown in Figure 3) on the stage casing.This combination by support exhibition sheet edge and fold can be held in place corn kernel, and steam in the process of popping and expansion pressure are launched packaging bag.
Second embodiment
Fig. 4-8 shows the microwave popcorn packaging bag 1 that is similar to first embodiment, and just batching is not loose in packaging bag.On the contrary, batching is contained in the big envelope 16 regularly, and this big envelope is arranged in the inner chamber 8 of packaging bag.Big envelope must be made by the material that can see through microwave energy, and polyester preferably is so that can heat wherein popcorn and seasoning matter by microwave energy.Because big envelope is little as to be not enough to hold corn kernel after popping, thereby be that structure with big envelope is designed to like this, that is, and can be when its heat that is subjected to producing in the process of popping, steam and expansion pressure by fried broken.After big envelope broke, in the packaging bag of popcorn around will escaping into, packaging bag admitted quick-fried good popcorn 3 to take up to the customer.
Preferably include susceptor 11 in a second embodiment to help the process of popping.Susceptor 11 preferably is installed on the lower surface of big envelope (shown in Fig. 4-6).So, where no matter big envelope being positioned in the packaging bag, susceptor always can be near corn kernel.In another kind design, susceptor is placed on the front panel of packaging bag (as among first embodiment shown in Figure 2), and does not have the big envelope of susceptor to be fixed on the inside face of close susceptor of packaging bag one.In both cases, importantly the corn kernel batching all is positioned adjacent to susceptor.
The same with first embodiment, corn kernel 2 preferably is dispersed in the big envelope with thickness equably.So, no matter be that susceptor is arranged on the big envelope, still it is arranged on or near panel, corn kernel always can with basically uniformly speed heat, and on susceptor, do the zone basically or at all.In addition, if big must being enough to of big envelope makes corn kernel be paved into individual layer, so just can improve the efficiency of heating surface further.
Having number of ways can generate one can explode broken and the big envelope release popcorn.Difficult point wherein is, guarantee that big envelope is firm as to be enough to bear stress suffered in manufacturing, transportation and the storage process, and weak again must being enough to of while broken by fried in the process of popping very early.A kind of possible design is to adopt the polyester sheet with precise thickness and intensity, and this polyester sheet can be in time by fried broken.Yet because micro-wave oven can apply different energy levels, and owing to will comprise some error limit inevitably in the polyester manufacturing process, thereby to want accurately make like this big envelope be very difficult and relatively more expensive.Another kind of pattern is, along zone indentation on big envelope that expectation is broken.Yet, do so unsatisfactory because perforation can improve too early break, danger that moisture turnover corn kernel and aerating agent and edible oil leak.
Fig. 4 shows comparatively ideal big envelope structure.Having batching 2, one back layers 18 on the upper surface of one anterior layer 17 covers on the batching.The edge 19 of anterior layer and back layer is bonding mutually around batching by a releasable adhesives 20.
Owing to adopted releasable adhesives, thereby when interior expansion pressure that big envelope is subjected to generating in the process of popping, can split.Preferably, the intensity of adhesives can reduce when it is subjected to steam and action of high temperature.So adhesives intensity in colder relatively transportation and storage process is the highest, and intensity is the most weak when it will discharge.Thereby if susceptor 11 is directly installed on the anterior layer 17 of big envelope adhesives is heated apace, just can improves release action further.The preferable adhesives that is used to make big envelope is the trade mark Selar PT8307 of Du Pont.
After corn kernel pops, the customer will need to be taken.This is done in such a way that promptly usually, 1 the end that opens the package, and pour inclusion in the bowl (for example referring to aforesaid Burdette patent).Because do not wish in popcorn 3, to be mixed with the big envelope fragment of using, thus be big envelope 16 to be fixedly installed in the inside face of packaging bag inner chamber 8, thus make it after the process of popping, still keep attachment state.This can realize with a kind of heat-resistant adhesive (for example the modified acroleic acid latex sold of Basic Adhesives Co., Ltd, production number is BR-3885).It should be noted, should be more much better than but be used for that big envelope is adhered to the adhesives of packaging bag than the releasing adhesive that is used for sealing the big envelope edge.As shown in Figure 5, heat-resistant adhesive bar 21 is fixed in the anterior layer 7 of big envelope the inside face of front panel 4; And heat-resistant adhesive bar 22 is fixed in the back layer 8 of big envelope the inside face of rear panel 5.
As shown in Figure 6, the inside face that big envelope layer 17,18 is fixed in inner chamber 8 helps at reasonable time big envelope 16 to be drawn back.Along with corn kernel 2 expands and discharge of steam, the top section 13 of packaging bag 1 and end section 15 be 14 expansion from the stage casing, and support exhibition sheet 12 opens, and packaging bag swells.Break away from mutually with rear panel 4,5 before this process of swelling can cause, and then the anterior layer and the back layer of big envelope drawn back.
The adhesives that uses along lapped seam 23 can not be subjected to heat, steam and the interior pressure the same with the adhesives that is used for keeping big envelope layer 17,18 to bond together.Therefore, but the releasing adhesive that is used for big envelope can be used for lapped seam 23.In addition, the width of lapped seam can change according to the bind strength of adhesives, up to obtaining suitable intensity.The applicant has found that for the application, the product B r-3885 of Franklin Duracet 12 or BasicAdhesives Co., Ltd can play better action.
The same with first embodiment, corn kernel 2 (and big envelope 16) preferably is positioned at the stage casing 14 of packaging bag 1, flows around packaging bag to help quick-fried good popcorn.The best mode of realizing this goal is that big envelope is placed the stage casing, and the section of top is folded on the stage casing with end section, so that it is held in place in transportation and storage process.Similarly, if do big envelope enough little, just can improve the degree of freedom of corn kernel in the process of popping to be assemblied between the support exhibition sheet (as shown in Figure 5).
Test shows that also adopting polyester to make big envelope 16 is effectively in the preservation freshness of corn kernel 2 and the aspect of performance that pops.The mechanism that pops of corn kernel depends on the expansion of the moisture in the corn kernel and breaks through the shell of corn kernel.Preferably, there is enough moisture to exist, can reaches very high pressure and form fierce breaking through, because can generate bigger, looser popcorn like this.If corn kernel is because the too many moisture of loss is and too dried in storage process, the in-to-in steam pressure just may be not enough, can only produce smaller popcorn, and have a large amount of corns kernel not pop at all.Yet if moisture is too high, it is pliable and tough that the corn kernel shell will become, if energy is less it popped.Therefore, importantly moisture to be maintained in the parameter area of setting.The present invention realizes this goal by making big envelope 16 with polyester, because polyester material does not allow water see through basically.This is better than covering whole packaging bag with the packaging polypropylene thing in the prior art.Big envelope 16 is much smaller, light, and does not comprise the air of packing or large volume, and the latter can absorb moisture from corn kernel and seasoning matter.By in big envelope, vacuumizing, can control moisture and seasoning matter freshness further.
Adopting the benefit of big envelope 16 is to make packaging bag panel 4,5,6,7 with lighter, more cheap material.Because big envelope holds oiliness batching 2 in the most of the time of whole goods, thereby significantly reduced expensive grease proofing panel material.Traditional protection of penetration be with emphasis side on the influenced part (being panel) of packaging bag.The present invention wraps oil sources, rather than the protection panel is avoided the oils influence.Therefore, oil only just can contact with panel among the process of popping with afterwards with aerating agent.This moment, the time that product is remained valid is usually less than half an hour (perhaps, if the customer pours inclusion in the bowl that separates into, effective time may be shorter).In order to prevent in the so short time, to form infiltration, and be designed to need to store six months or the existing packaging bag of longer time is compared, much less is wanted in the required protection of product of the present invention.
Adopt big envelope 16 can in the process of popping, not form protection of penetration.Therefore, for the consideration of saving cost, can preferably adopt moderate grease proofing material, this grease proofing material can keep oil a few minutes at least under about 400 temperature.Yet,, also can adopt the panel of making by cheap non-grease-proof paper if can in the process of popping, reach acceptable level of interpenetration.No matter select the sort of material for use, compare with the monolayer package bag of traditional multilayer or strength reason, packaging bag of the present invention is light, and has more flexibility.
The 3rd embodiment
Fig. 9 and 10 shows an alternative embodiment of the invention.This packaging bag is similar to second embodiment, and just the anterior layer 17 of big envelope 16 is the parts that the front panel 4 with packaging bag 1 is combined into one.Referring to this cutaway view of Fig. 9, a polyester layer 24 is attached to the inside face of front panel 4, has steamed on it and has applied a susceptor 11.A kind of firm heat-resistant adhesive (not shown) is held in a single layer cell with front panel, susceptor and polyester layer.Back layer 18 (more appropriate says, should be referred to as " cover plate " in this embodiment) of big envelope cover on the batching 2, and the inside face that is adhered to front panel releasedly is to generate the big envelope of a liner polyester.Described the same with second embodiment, adopt a releasable adhesives that cover plate is covered in front panel.
In the process of popping, the mechanism of the 3rd embodiment will be identical with second embodiment.When susceptor 11 is subjected to microwave energy, but it will heat corn kernel 2 and releasing adhesive 20.By high temperature and the steam of corn kernel and the combined action of expansion pressure of susceptor, but releasing adhesive will make cover plate 18 leave the inside face rise of front panel 4, thereby make corn kernel overflow into inner chamber 8.Along with the process of popping continues to carry out swelling with packaging bag, rear panel 5 will break away from front panel 4, thereby make quick-fried good corn kernel fill up the inner chamber of packaging bag.
The packaging bag 1 of the 3rd embodiment preferably also comprises a removable panel, uses and takes quick-fried good popcorn 3.If rear panel 5 is removed, can operate (as shown in Figure 8) to the goods after quick-fried like that as mentioned above.Yet the 3rd embodiment preferably makes front panel 4 removable.When the process of popping is finished, packaging bag can be turned, make front panel upwards, along lapped seam 23 front panel is just divested and can open the package.So just can be successively the lower floor of susceptor 11 and big envelope 16 be divested from the remainder of packaging bag.Therefore, even the customer can not divest front panel carefully from the side on the plate 6,7, but perhaps the releasing adhesive of lapped seam place is sacrifices consisting of an ox, a sheep and a pig, the possibility that susceptor also will stop front panel to be torn., also have preferably for this reason, make susceptor extend to the edge of front panel fully.
The 4th embodiment
The 4th embodiment is another development of above-mentioned structure.Shown in Figure 11 and 12, front panel 4 and 5 whiles of rear panel are as the front and back layer of big envelope 16.Preferably, steam the inside face that the polyester sheet that is covered with susceptor is attached to front panel on it with one, a kind of firm, heat-resisting adhesives makes them be linked to be a single layer cell.But rear panel 5 is to make of the moulding material of for example polyester and so on.The inside face of front panel and rear panel is focused at together, thereby seals corn kernel 2, and contacts with the periphery of corn kernel batching.But the interior bar of releasing adhesive 25 centers on batching, and keeps together (as shown in figure 11) around the inside face of periphery with front panel and rear panel.So, can be by the inside face of packaging bag be bonded together and forms big envelope simply around batching.It should be noted that in this embodiment, batching must be between support exhibition sheet, so that the inside face of front panel and rear panel can be bonded together around batching.
In the process of popping, the device of the 3rd embodiment is to carry out in mode shown in Figure 12.But front and back panel kept together will be discharged with the releasing adhesive bar that forms big envelope, and corn kernel will overflow and enter inner chamber 8, and support exhibition sheet struts, and packaging bag is swollen.
The 4th embodiment also preferably adopts a removable panel.In this embodiment, rear panel is preferable selection, makes because it is likely with the material of other parts that is different from packaging bag 1, in any case and must be attached to side panel 6,7.If with transparent material for example polyester make rear panel, then can see the process that corn kernel pops enjoyably, and can be after the process of popping is finished see through panel and see quick-fried good popcorn 3.As shown in figure 13, but rear panel is attached to side panel by a releasing adhesive 26 along lapped seam 23.It should be noted that the rear panel among Figure 13 is not to extend along packaging bag fully.According to the manufacturing process of producing this packaging bag, in fact rear panel can extend to the top and the bottom of packaging bag fully.Situation after the corn kernel that Figure 14 and 15 shows the 4th embodiment pops, wherein rear panel is partly removed, uses to expose quick-fried good popcorn 3.
According to the required complexity and the fabrication tool that can get, more than any one embodiment can be " preferable ".Yet if hold corn kernel and seasoning matter with big envelope, the configuration that the 4th embodiment is best beyond doubt is because panel or layer that it does not need to add form big envelope.
Preferable manufacturing process
Figure 16 shows some elementary cells of the preferable manufacture method of the device that is used to form the 4th embodiment.
This packaging bag 1 is to be configured to make rear panel 5 to be positioned at front panel 4 belows.Reel 30 mylar that one deck is continuous deposits on the belt conveyor 31.Lower face at belt conveyor vacuumizes, thereby makes mylar consistent with groove 32.From corn kernel funnel 33, quick-fried corn kernel and seasoning matter once rendered in the groove subsequently.If adopt solid-state seasoning matter, but preferably corn kernel and seasoning matter are formed the solid block of its size filling groove.Yet, to notice that importantly this horizontal manufacturing technology also can be applicable to liquid condiment well, this is because groove can receiving fluids, up to they are sealed in the big envelope 16.In addition, because various compositions are deposited on the surface of a level, thereby their can distribute in groove uniformly by action of gravity, and finally divide even cloth to helping to make the effect of popping to become on the more efficiently susceptor.
See also Figure 11, in the 4th embodiment, need two independent releasable strip of glue mylar (being rear panel 5) to be attached to the side panel of support exhibition.Interior (adhesives) pattern 25 remains in the polyester inside face to form big envelope 16 with the inside face of paper stock, and outer (adhesives) pattern 26 remains in the two ends of packaging bag and the edge that sheet 12 is opened up in support with polyester.But these two releasing adhesive patterns are to be coated on paper stock at station 39.
After support exhibition sheet, susceptor and pattern of adhesive are put on paper stock, paper stock is transported on the belt conveyor, and adheres to polyester layer at station 40.Must be noted that will to make paper stock and mylar synchronous, so that susceptor 11 and pattern of adhesive 25,26 are correctly aimed at.Each susceptor 11 directly must be positioned at the top of groove 32 and corn batching 2, the periphery of each inner binder pattern 25 necessary alignment indentation, and the outer adhesive pattern must be corresponding to the outward flange of mylar.After paper stock and polyester aligning, in a hot press 41, make adhesives (releasable and hi-heat) fixing.Subsequently, cut out each packaging bag at station 42.
Those skilled in the art should be appreciated that above-mentioned manufacturing process is just in order to illustrate.In the practice, these steps needn't necessarily be undertaken by described order, and they may all not carry out in same technological process yet.For example, can in the process that another separates, support exhibition sheet and susceptor be added on the paper stock, but releasing adhesive can be coated on polyester sheet rather than paper stock.Those skilled in the art can also recognize that this technology is suitable for forming packaging bag/big envelope of the second and the 3rd embodiment equally.For example, if the step of removing the coating high-temperature adhesives and adding support exhibition sheet, this technology can be used for forming the independent big envelope (i.e. second embodiment) for inserting packaging bag.Similarly, if mylar is wide as to be enough to not arrive support exhibition sheet edge around the batching sealing, so just additional paper stock volume can be put on the mylar, and be incorporated into the corresponding panel, thereby form the packaging bag of the 3rd embodiment in the both sides of film.Certainly, because this technology can make batching distribute equably with respect to susceptor, so also can realize the design of first embodiment.
Though only in conjunction with the specific embodiments the present invention is described in detail, those skilled in the art should be appreciated that, can make various modification under the situation that does not break away from spirit of the present invention and do not depart from spirit of the present invention.In view of this, protection scope of the present invention should be limited by appended claims.
Claims (10)
1. microwave popcorn packaging bag comprises:
(a) outer packaging bag, this outer packaging bag by flexibility, the paper material of microwave constitutes thoroughly;
(i) described outer packaging bag defines an inner chamber; And
(b) a leak free big envelope, this big envelope basically can not be permeable, and be arranged in the inner chamber of described outer packaging bag;
(i) described big envelope is to be constructed to be permeable to open in the process that the microwave popcorn pops, and in the described process that pops, the packaging bag of described microwave popcorn is positioned at a micro-wave oven.
2. microwave popcorn as claimed in claim 1 packaging bag is characterized in that, this packaging bag also comprises:
(a) microwave susceptor.
3. microwave popcorn as claimed in claim 2 packaging bag is characterized in that:
(a) described sealing big envelope is a leak free polyester big envelope.
4. as each described microwave popcorn packaging bag among the claim 1-3, it is characterized in that:
(a) the flexible paper material of described outer packaging bag is selected from monolayer constructions will and double-layer structural.
5. as each described microwave popcorn packaging bag among the claim 1-3, it is characterized in that:
(a) be right after before putting into the micro-wave oven heating, comprise liquid oil in the described big envelope; And
(b) described leak free big envelope is to come leak free with an adhesives, and this adhesives is to open when selecting and being arranged to make internal pressure that big envelope produces in being subjected to microwave heating process.
6. microwave popcorn as claimed in claim 5 packaging bag is characterized in that:
(a) described leak free big envelope is fixed in outer packaging bag, like this, pops after the process when carried out microwave by this microwave popcorn packaging bag, and described big envelope will maintain attached even in described outer packaging bag.
7. microwave popcorn as claimed in claim 1 packaging bag is characterized in that:
(a) described outer packaging bag comprises a plurality of panels, and these panels are by described flexibility, the paper material of microwave is made thoroughly, and mutually combines and form described inner chamber;
(b) described packaging bag comprises can be quick-fried once, not quick-fried, as can to accept microwave corn kernel batching, and these corns kernel batchings are deposited on the inside face of front panel of described packaging bag;
(c) described big envelope is to use the cover plate formation of microwave thoroughly, this cover plate covers on the described batching, and adhere to the inside face of described front panel around described batching, thus described big envelope formed, and described batching is included between described cover plate and the described front panel firmly;
(d) described microwave susceptor is installed on the described front panel;
(e) described batching deposits near described susceptor;
(f) described corn kernel is easy to pop and expand when being heated;
(g) structure of described big envelope is strong must be enough to comprise not quick-fried corn kernel, during the weak again simultaneously expansion pressure that must be enough in corn kernel pops process, to be subjected to produce in the big envelope by fried broken; And
(h) wherein, the big and flexible volume that must be enough to hold quick-fried good popcorn of described packaging bag.
8. a method of producing the microwave popcorn comprises the steps:
(a) microwave popcorn goods are positioned in the micro-wave oven, described microwave popcorn goods comprise:
(i) outer packaging bag that constitutes by the flexible paper material;
(l) described outer packaging bag defines an inner chamber; And
A (ii) sealing big envelope that is arranged in the inner chamber of described outer packaging bag; And
(b) make these microwave popcorn goods be exposed to enough microwave energies, open big envelope with the heat and the steam that are produced in the Drawing upon sealing big envelope.
9. method as claimed in claim 8 is characterized in that:
(a) described placement step comprises: place a popcorn packaging bag, this packaging bag comprises that one contains the sealing big envelope of liquid oils.
10. as each described method among the claim 8-9, it is characterized in that:
(a) described placement step comprises: place a popcorn packaging bag, this packaging bag comprises a leak free polyester big envelope.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/US1999/007801 WO2000061456A2 (en) | 1999-04-09 | 1999-04-09 | Microwave popcorn bag with efficient charge arrangement and internal product barrier |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1419514A CN1419514A (en) | 2003-05-21 |
| CN1177734C true CN1177734C (en) | 2004-12-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB998167142A Expired - Fee Related CN1177734C (en) | 1999-04-09 | 1999-04-09 | Microwave popcorn bag with efficienjt charge appangement and internal product barrier |
Country Status (8)
| Country | Link |
|---|---|
| EP (1) | EP1257483A2 (en) |
| JP (1) | JP2003515312A (en) |
| KR (1) | KR20020024816A (en) |
| CN (1) | CN1177734C (en) |
| AU (1) | AU3638799A (en) |
| BR (1) | BR9917255A (en) |
| CA (1) | CA2369555A1 (en) |
| WO (1) | WO2000061456A2 (en) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB9923728D0 (en) * | 1999-10-07 | 1999-12-08 | Langen Packaging Inc | A flexible sheet structure and a container |
| US7435436B2 (en) | 2002-11-18 | 2008-10-14 | Conagra Foods Pdm, Inc. | Microwave popcorn package |
| WO2004087530A1 (en) * | 2003-04-01 | 2004-10-14 | Revopop Inc. | Microwave food container with inner enclosure |
| GB0428229D0 (en) * | 2004-12-22 | 2005-01-26 | Ffp Packaging Solutions Ltd | Cooking bags |
| FR2891114B1 (en) * | 2005-09-29 | 2008-03-14 | Natais Sarl Sarl | PRESENTATION AND PREPARATION ASSEMBLY FOR BLOWN COMPOSITION |
| KR200447590Y1 (en) * | 2009-09-02 | 2010-02-10 | 한주엽 | Compressed pillow for absorption |
| US9346604B2 (en) * | 2011-09-27 | 2016-05-24 | Ballereich Bros., Inc. | Method, kit, and container for preparing a snack food |
| HUE044587T2 (en) | 2013-06-21 | 2019-11-28 | Dode Sa | Collapsible container |
| USD794093S1 (en) | 2015-12-24 | 2017-08-08 | Samsung Electronics Co., Ltd. | Ice machine handle for refrigerator |
| USD793458S1 (en) | 2015-12-24 | 2017-08-01 | Samsung Electronics Co., Ltd. | Ice machine for refrigerator |
| IT201900014940A1 (en) * | 2019-08-22 | 2021-02-22 | Eazy Roast Ltd | Method and packaging for uniform roasting of seeds in a microwave oven |
| US20230099868A1 (en) * | 2021-09-27 | 2023-03-30 | Proampac Holdings Inc. | Multiwall paper packaging structures |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4038425A (en) | 1974-09-25 | 1977-07-26 | The Pillsbury Company | Combined popping and shipping package for popcorn |
| US4292332A (en) * | 1976-05-10 | 1981-09-29 | Mcham David E | Container for prepackaging, popping and serving popcorn |
| US4596713A (en) | 1983-04-14 | 1986-06-24 | Burdette Darrell C | Microwave food packets capable of dispersing a food additive during heating |
| US4571337A (en) | 1984-05-10 | 1986-02-18 | Hunt-Wesson Foods, Inc. | Container and popcorn ingredient for microwave use |
| US5171950A (en) * | 1989-09-11 | 1992-12-15 | General Mills, Inc. | Flexible pouch and paper bag combination for use in the microwave popping of popcorn |
| CA2111328C (en) * | 1991-06-14 | 1996-10-22 | William E. Archibald | Microwavable food package having a bag with reverse folded gussets |
| US5461216A (en) | 1994-07-28 | 1995-10-24 | General Mills, Inc. | Single layer, greaseproof, flexible paper popcorn package |
| US5679278A (en) * | 1994-12-20 | 1997-10-21 | Cox; David H. | Microwaveable container for liquid oils |
| BR9608713A (en) * | 1995-05-15 | 1999-06-29 | Golden Valley Microwave Foods | Construction including internal closure for use in microwave cooking and process |
-
1999
- 1999-04-09 JP JP2000610744A patent/JP2003515312A/en not_active Withdrawn
- 1999-04-09 KR KR1020017012885A patent/KR20020024816A/en not_active Application Discontinuation
- 1999-04-09 CA CA002369555A patent/CA2369555A1/en not_active Abandoned
- 1999-04-09 EP EP99918479A patent/EP1257483A2/en not_active Withdrawn
- 1999-04-09 CN CNB998167142A patent/CN1177734C/en not_active Expired - Fee Related
- 1999-04-09 WO PCT/US1999/007801 patent/WO2000061456A2/en not_active Application Discontinuation
- 1999-04-09 BR BR9917255-0A patent/BR9917255A/en not_active Application Discontinuation
- 1999-04-09 AU AU36387/99A patent/AU3638799A/en not_active Abandoned
Also Published As
| Publication number | Publication date |
|---|---|
| BR9917255A (en) | 2002-01-08 |
| KR20020024816A (en) | 2002-04-01 |
| EP1257483A2 (en) | 2002-11-20 |
| WO2000061456A3 (en) | 2002-09-26 |
| WO2000061456A2 (en) | 2000-10-19 |
| JP2003515312A (en) | 2003-05-07 |
| AU3638799A (en) | 2000-11-14 |
| CA2369555A1 (en) | 2000-10-19 |
| CN1419514A (en) | 2003-05-21 |
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