CN1113027C - Easily expandable, nontrapping, flexible paper, microwave package - Google Patents

Abstract

A flexible paper popcorn package in the form of an easily expandable, nontrapping bag (18) is disclosed including a bottom wall (20) and a top wall (22) interconnected together adjacent their circular outer peripheries (20a, 22a) by first and second interconnection portions (26a, 26b). In one preferred form, the top wall (22) is formed by first and second wall portions (22b, 22c) interconnected together by a peelable closure seal (28). In another preferred form, the top wall (22) is formed from a first portion (22d) having an access opening closed by a closure portion (22e) interconnected by a seal (40) including the peelable closure seal portion (40a) to the first portion (22d). In still another preferred form, the bottom wall (20) and top wall (22) are interconnected together by their interconnection to gussetted side panels (50, 52), with the peelable closure seal being formed in the interconnection between the bottom wall (20) and top wall (22). The bottom wall (20) and top wall (22) expand into an opposing double domed shape as the popcorn kernels are being popped in the microwave oven. This domed shape of the bottom wall (22) keeps the unpopped popcorn huddled closer together and enhances the bag (18) to rock to maximize gravimetric separation. The bag (18) provides a serving bowl function when the peelable closure seal has been opened providing access to the interior of the bag (18) and specifically to the popped popcorn located therein.

Description

That expand easily, accessible, flexible microwave package made of paper

Invention field

The present invention relates generally to the package that is used for micro-wave oven, particularly relate to easy expansion, accessible, flexible microwave package, the packing that form package be non-stretchable, be used for expanded or expansion cereal, the packing of rice krispies grain particularly, especially relate to microwave package, it can be used as bowl and uses, and opens easily.

Background of invention

In order effectively to utilize the space, in conveying and storage process, rice krispies grain microwave package will be housed usually be folded into flat pattern.Using microwave energy, making in the expanded process of rice krispies grain in the package,, producing the pressure that steam pressure and expanded rice krispies grain produce in interior because the rice krispies grain is expanded, and the effect of other factors, make the package that the rice krispies grain is housed expand.Making the long-pending maximized key factor of rice krispies plastochondria is that the microwave package that the rice krispies grain is housed has the ability of easy expansion.The quantity that another makes long-pending maximized another major reason of rice krispies plastochondria is rice krispies grain in the package, in fact by guaranteeing that unpuffed rice krispies grain and sensing device are gathered together, so that acquisition time enough, accept enough heat energy, thereby cause the rice krispies grain expanded, make the maximization of rice krispies grain.Before expanding processing or in the puffing process, the shape of packaging bag expands packaging bag, and makes unpuffed rice krispies grain and sensing device be in contact with one another the aspect, has important effect.

A kind of form of rice krispies particle packing spare of routine is that package has rectangular top and bottom and folding sidewall, by the top and the bottom of fixed packet pack, makes that an end of packaging bag is sealed at least, for example, but is not limited to the end that folding bag packs.A common problem is, unpuffed rice krispies grain in puffing process, is pushed into the folding or fold part of packaging bag, and especially at the end of packaging bag adjacent, the package problem with folded side plate is even more serious.This rice krispies grain may be accommodated in the folding or fold part of packaging bag, thereby these rice krispies grains can not move to sensing device, and therefore it can not be expanded in microwave cooked process.

And conventional rectangle rice krispies particle packing bag may be hooked on the corner of micro-wave oven.This does not normally wish situation about taking place, because for the micro-wave oven with turntable, this will cause packaging bag no longer to be rotated in microwave oven cavity, and is fixed in the corner in the micro-wave oven.But, for the micro-wave oven that turntable is not set, when packaging bag is positioned at the corner of micro-wave oven,, can not cause rice krispies grain in the packaging bag in microwave oven cavity to move to the central authorities of micro-wave oven by packaging bag expansion or the oscillating action that the rice krispies grain produces.This is not wish situation about taking place, because the corner typical temperature in microwave oven cavity is low, and the rice krispies grain in the packaging bag can not move to certain hot spot or electronic impact (EI) point usually.

Therefore, need to improve the packaging bag of flexible rice krispies grain made of paper, make it cause packaging bag to be expanded by the expanded dynamic action of rice krispies grain easily.In the package expansion phase and rice krispies grain when accepting microwave energy, reduce the possibility that not expanded rice krispies grain occurs, provide the microwave energy of uniformity to distribute, obtain the rice krispies grain of maximum quantity and volume.According to another aspect of the present invention, rice krispies particle packing spare can be used to dilated food, and uses as bowl, so that take the rice krispies grain from bowl.In another aspect of this invention, through instruction rarely, the customer just can easily open the package that has expanded.

Especially, a kind of preferred embodiment of the present invention by providing can satisfy above-mentioned needs, and reaches other purpose of the present invention.Inflatable microwave package provided by the invention is formed by packaging bag, described packaging bag comprises flexible roof and diapire, described roof and diapire are formed by non-stretchable material, it interconnects adjacent with rounded outer edge, so that in micro-wave oven, when the rice krispies grain was expanded, the roof of packaging bag and diapire expanded, and form opposed cheese profile.

In preferred most preferred embodiment, roof comprises strippable close encapsulation part, and in microwave cooked process, described strippable close encapsulation partly forms steam channel.After microwave cooked, can separate strippable close encapsulation part with physical method, so that take out the rice krispies grain easily, and, packaging bag is used as bowl.In the preferred most preferred embodiment of the present invention, the interconnect place of strippable close encapsulation part between first and second wall parts forms.In the preferred most preferred embodiment of the present invention, packaging bag also comprises first and second extendible portions, and described first and second extendible portions stretch out from first and second wall parts, so that firmly grasp package by the customer, with first and second wall parts separately.

In another preferred embodiment, roof is made of multi-layer sheet, and it comprises that first annular section with opening and size greater than the enclosure portion of opening, partly interconnect enclosure portion and first wall by sealing area.In the preferred most preferred embodiment of the present invention, sealing area comprises peelable enclosure portion, and in microwave cooked process, peelable enclosure portion is destroyed.Be provided with extendible portion at enclosure portion ground outward flange, so that the enclosure portion that will remove promptly.

In another preferred embodiment of the present invention, the interconnect place of strippable close encapsulation part between diapire and roof forms.In the preferred most preferred embodiment of the present invention, extendible portion forms in the outer edge of diapire and roof, adjacent with strippable close encapsulation part, and extend towards the lateral direction that interconnects part, so that firmly grasp described extendible portion by the customer, and draw back extendible portion, open the package, thereby the expanded rice krispies grain in the packaging bag is taken out.

In another preferred embodiment of the present invention, by first and second jiaos of support side plate, diapire and roof are interconnected, the outward flange of first plate portion of the outward flange of diapire and first and second jiaos of support side plate interconnects, the outward flange of second plate portion of the outward flange of roof and first and second jiaos of support side plate interconnects, and the outward flange of above-mentioned plate portion is corresponding to the outward flange of diapire and roof.

In another preferred embodiment of the present invention, by the formation packaging bag that interconnects of diapire and roof, described diapire and roof have rounded outer edge, along the first and second fold line folding bags pack that is parallel to each other, described fold line is positioned at the opposite side that interconnects the edge, then, folding around the 3rd fold line, described the 3rd fold line is perpendicular to first and second fold lines, and between first and second fold lines, extend, make the rice krispies grain pass through interconnective edge at the second fold line place, in packaging bag, fill, then sealing.Subsequently, folding the 4th fold line, described the 4th fold line are parallel to the 3rd fold line and extend, and have conventional rectangular profile through folding packaging bag, so that carry out the subsequent processing packing.

Describe embodiments of the invention below with reference to the accompanying drawings in detail, can be expressly understood the present invention more.

To brief description of the drawings

Describe embodiments of the invention in detail with reference to following accompanying drawing.

Fig. 1 is the block diagram of the package structure of the expression preferred embodiment of the invention, and wherein package is in swelling state.

Package shown in Fig. 2 presentation graphs 1 is in not occupied state, the planar view when being flat form, and the part is analysed and observe among the figure.

Package shown in Fig. 3 presentation graphs 1 is in not occupied state, the block diagram when being the partial folds state, and the part is analysed and observe among the figure.

Package shown in Fig. 4 presentation graphs 1 is in not occupied state, the block diagram when being the partial folds state.

Package shown in Fig. 5 presentation graphs 1 is in not occupied state, the block diagram when being the partial folds state, and has upper lip edge separately, so that the corn kernel or the analogue of packing into and will pop, the part is analysed and observe among the figure.

Package shown in Fig. 6 presentation graphs 1 is in occupied state, the planar view when being the partial folds state, and the part is analysed and observe among the figure.

Package shown in Fig. 7 presentation graphs 1 is in occupied state, the block diagram when being folded state.

Fig. 8 represents along the viewgraph of cross-section shown in Fig. 1 section line 8-8, and is clear in order to describe, and taken out quick-fried corn kernel.

Package is in the lateral plan of opening shown in Fig. 9 presentation graphs 1.

Figure 10 represents the planar view of package structure shown in the preferred embodiment of the invention, and wherein package is in unfilled flat form.

Figure 11 represents the block diagram of package shown in Figure 10, and wherein package is in to fill and expands and local opening.

Figure 12 represents the block diagram of the package structure of the preferred embodiment of the present invention, and wherein expression adopts preferred mode to open the package that has expanded.

Figure 13 represents the planar view of the package structure of the preferred embodiment of the present invention, and wherein package is in and does not fill flat form, and the part is analysed and observe among the figure.

Figure 14 represents the block diagram of package shown in Figure 13, and wherein expression adopts preferred mode to open the package that has expanded.

Figure 15 represents the block diagram of package shown in Figure 13, and wherein package is in swelling state, and its expression package can be used as bowl and uses.

Figure 16 represents the block diagram that package shown in Figure 13 decomposes, and has wherein described to constitute according to the present invention a kind of structure of package.

Figure 17 represents the planar view of the package of the preferred embodiment of the present invention, and wherein package is in and does not fill flat form, and the part is analysed and observe among the figure.

Above described institute drawings attached only be basic design of the present invention for convenience of explanation, below by reading and understanding for the embodiment of the invention, this professional those of ordinary skill can be understood, with respect to the size of the amount of parts, position, interrelation and the parts that constitute preferred embodiment, the structure shown in the accompanying drawing can further change.And after reading and understanding the embodiment of the invention described below, this professional those of ordinary skill should be understood that equally the accurate dimension of package and dimension scale can change thereupon according to special application force, weight, intensity and similar demand.

Identical or similar parts represented in the identical code name that uses in a plurality of accompanying drawings.In addition, be to be understood that, term " top ", " bottom ", " first ", " second ", " side ", " end ", " inside ", " outside ", " inboard ", " outside ", and the similar terms of using in this article, only be used for representing the structure of accompanying drawing, so that the figure in reader understanding's accompanying drawing, this only is a preferred embodiment for convenience of explanation.

Description of preferred embodiments

According to the instruction of the preferred embodiment of the present invention, described a kind of package that is used for micro-wave oven in the accompanying drawings, represent by code name 18 as the inflatable flexible bags shown in the accompanying drawing.Be readily appreciated that, when micro-wave oven is put in packaging bag 18, it be horizontal.Therefore, packaging bag 18 comprise diapire 20 and shape and size basically with diapire 20 corresponding roofs 22.But each diapire 20 and roof 22 are made by flexibility non-stretchable sheet material, paper for example, and it includes but not limited to the paper that basic unit is capped, and perhaps has similar fiber structure; Poly-mer includes but not limited to polyethylene terephthalate (PET), polyester and nylon, and perhaps other can stand the micro-wave oven material processed.The material that forms diapire 20 and roof 22 can be opaque, semi-translucent, material transparent, or by they compound materials.Each diapire 20 and roof 22 comprise outward flange 20a and 22a respectively, and the center 24 that common described edge arrives diapire 20 and roof 22 has equal distance, and described diapire 20 and roof 22 preferred optimum shapes are circular.But, periphery 20a and 22a are non-circular shape basically, or be the shape of circular arc, and/or comprising interconnective edge, it has the shape in impossible hook micro-wave oven corner, for example, adopt the shape of symmetry, it comprises ellipse, pentagon, hexagon, heptagon, octagon or the like, also can adopt asymmetrical shape, and for example general is avette.

In order to constitute the inside of hollow, diapire 20 and roof 22 interconnect by sealing member in the adjacent position of peripheral 20a and 22a, pass through sealing member, make packaging bag 18 in the process of manufacturing, carrying, conveying and retail, constitute an integral body with the content in the packaging bag 18, be manufactured in the micro-wave oven and cook.In preferred most preferred embodiment, interconnect effectively between diapire 20 and the roof 22, so that in micro-wave oven in the process of heat packs piece installing 18, sealing member is adapted to the steam of generation in packaging bag 18, and, consume in the process of rice krispies grain the user, can avoid the packaging bag accident to be opened.In preferred most preferred embodiment, suitable annular shaped adhesive band 26 is attached to one of diapire 20 and roof 22 or both inside faces, so that guarantee after applying heat and/or pressure, diapire 20 and roof 22 are bonded together at the adjacent of peripheral 20a and 22a.In addition, when interconnecting by adhesive tape 26 formation, diapire 20 and roof 22 are located mutually, they form common writing board shape thus, and in this preferred embodiment, diapire 20 and roof 22 uninterrupted contact each other are in the same place, and do not expand or folding and do not produce.

In preferred most preferred embodiment, packaging bag 18 comprises vane 30, and described vane 30 is in the local extension of diapire 20, and is spaced apart with peripheral 20a, and in preferred most preferred embodiment, vane 30 generally is positioned at middle position 24.Adopt any suitable manner well known in the prior art, can make vane 30, matrix metal plastic sheeting on diapire 20 for example, as shown in Figure 8, in the accompanying drawings, clear in order to describe, the thickness of vane 30 is exaggerated, and perhaps vane 30 is bonded between the lamination that separates that forms diapire 20, for example, vane 30 is bonded in the back side of paper, or vane 30 adheres to as coating or is printed on the diapire 20.And though as shown in the figure, vane 30 can be set at the inboard of the diapire 20 that is positioned at packaging bag 18, and vane 30 also can be set at the outside of the diapire 20 of packaging bag 18.And the setting of vane 30 can realize in the process of forming materials, perhaps forms on the manufacturing line of material.

In the preferred embodiment shown in accompanying drawing 1,2,8 and 9, roof 22 forms the first wall part 22b and the second wall part 22c, and they interconnect by wing sealing member 28.In a preferred embodiment, the common semicircular in shape of wall part 22b and 22c, wing sealing member 28 extends between the relative point of peripheral 22a, particularly extends along the radial direction of the peripheral 22a of circle.The strippable enclosed construction that wing sealing member 28 provides, this enclosed construction is in the cooking in microwave oven process, by partial failure.Particularly, this wing sealing member 28 by partial failure allows to discharge the inner steam that produces from packaging bag 18, and after cooking in microwave oven, take out the rice krispies grain from the inside of the packaging bag 18 of hollow, thereby allow the customer to continue to peel away sealing member 28, so that open the package 18 wherein rice krispies grains.

Can make packaging bag 18 according to the following manner of the present invention's instruction.Particularly, diapire 20 and roof 22 are set up the location, and their inside face is in contact with one another together, and make their peripheral 20a and 22a alignment.At first, the part 26a that interconnects of adhesive tape 26 is suitably activated, diapire 20 and roof 22 are interconnected so that interconnect part 26b by second.When carrying out first step, interconnect part 26a and extend along peripheral 20a and 22a basically, the second, in a preferred embodiment interconnect the radius that part 26a has extension, its generally equal peripheral 20a and 22a shape diameter 1/2nd.

At this moment, the packaging bag 18 of part moulding can be folding along parallel fold line 32a and 32b, described fold line 32a and 32b distance spaced apart from each other equal peripheral 20a and 22a shape diameter 1/2nd, and between first and second of the end of opposed side edges, the common part 26b that extends, extend.In a preferred embodiment, fold line 32a and 32b are located in the diameter of peripheral 20a and 22a shape at opposite side, and have equal distance.Therefore, packaging bag 18 is divided into middle body 34a and the first fin 34b and the second fin 34c, and the described first fin 34b and the second fin 34c are folding along fold line, and 34a is overlapping with middle body.The radial width of the first fin 34b and the second fin 34c is respectively 1/4th of peripheral 20a and a 22a shape diameter, and it generally equals 1/2nd of middle body 34a.Therefore, when the first fin 34b and the second fin 34c overlapped middle body 34a and go up, the first fin 34b and the second fin 34c were not overlapped.Packaging bag 18 is folding by this way, it comprises the first and second straight sides edges that are parallel to each other, and described straight sides edge is formed by fold line 32a and 32b, also comprises upper limb and lower edge, usually formed by peripheral 20a and 22a and protrude shape, its middle part has fold line 32a and 32b.

Then, make packaging bag 18 part moulding along the 3rd fold line 36, described the fold line 36 general and first and second straight sides edge-perpendicular that are parallel to each other, the described first and second straight sides edges that are parallel to each other are formed by fold line 32a and 32b, and, fold line 36 is positioned at and leaves lower edge, equals the position of the diameter 1/3rd of peripheral 20a and 22a.Therefore, packaging bag 18 comprises fin 36a, and it comprises lower part and fin 34b and the 34c of part 34a, and fin 36 is overlapping with fin 34b and 34c, and described part 26b is in the opposed position of fin 36a.Packaging bag 18 is folding by this way, it comprises the first and second straight sides edges that are parallel to each other, described straight sides edge is formed by fold line 32a and 32b, also comprise the lower edge that forms by fold line 36, described fold line 36 extends along the vertical direction of lateral edges, also has upper limb, and described upper limb generally forms the shape of protruding by peripheral 20a and 22a, its middle part has fold line 32a and 32b and part 26b.

Under the folded state of packaging bag 18, along direction perpendicular to upper limb, its position is positioned at the top of the vertical direction of lower edge, catch diapire 20 and roof 22, the upper limb of peripheral 20a and 22a is separated, fill quick-fried corn kernel, fat, cooking oil, salt, seasonings to the inside of packaging bag 18, or analogue.Can learn,, prevent to be filled thing usually and cross fold line 32a, 32b and 36, avoid being filled thing and enter fin 34b, 34c and 36a, and be stored in the adjacent part of the middle body 24 of packaging bag 18 because packaging bag 18 is in folded state.

After having filled content, stick portion 26b is suitably activated, so that diapire 20 and roof 22 interconnect.Therefore, diapire 20 and roof 22 interconnect along the whole length of peripheral 20a and 22a.In addition, adhesive strip 26 and sealing area 28 enclose bags 18 so that the content that is filled in the inside of hollow of packaging bag 18 is sealed fully, are isolated from the outside.

After adhesives part 26 is sealed, along the folding bag pack 18 once more of the 4th fold line 38, described the 4th fold line 38 is generally perpendicular to the first and second straight sides edges and extends, the described first and second straight sides edges are made of fold line 32a and 32b, and the 4th fold line 38 be parallel to fold line 36, upper limb is left in the position at described the 4th fold line 38 places, in 1/3rd positions of peripheral 20a and 22a shape diameter.Peripheral 20a and the 22a of the position of fold line 38 and fin 36a are adjacent, and are positioned at the top of the hollow interior weighting material of packaging bag 18.Therefore, packaging bag 18 comprises fin 38a, and described fin 38a comprises the top of part 34a and fin 34b and 34c, and fin 38a is folding, and overlaps on the fin 36a.Should be understood that owing to be packaged in 18 and be in folded state, therefore can prevent that generally the content of filling from surmounting fold line 38, prevent that content from entering fin 38a, and make the content of filling remain on the adjacent part of packaging bag 18 middle bodies 24.Packaging bag 18 is folding by this way, it generally is the rectangular dimension shape of conventional pone pack folding, made of paper, and comprise respectively constituting the first and second parallel lateral edges, respectively parallel top edges and the lower edge that forms by fold line 36 and 38 by fold line 32a and 32b.In a preferred embodiment, be sealed in the flexible outer wrapping bag, so that packing and storage through packaging bag 18 folding and that fill.Usually, this parcel bag is by transparent or nontransparent or semi-translucent plastic material moulding, and can be by the glass or the stupalith of metallized film, moulding, and perhaps the material of other barrier structures is made.Certainly, can understand, before adopting cooking in microwave oven food, remove this outer wrapping bag usually by the customer.

For the present invention is described all sidedly, can suppose that content in the packaging bag 18 or weighting material are the rice krispies grains, or any suitable cereal, for example rice, corn, barley, sorghum rice, perhaps analogue so that in micro-wave oven by snuff or expanded.Particularly,, the diapire 20 of packaging bag 18 is placed on the inside face of cavity in the micro-wave oven for present packaging bag, preferably by the customer with the tab portion of packaging bag or all launch.When the package in micro-wave oven provided microwave energy, vane 30 specially became heat with microwave energy, and the rice krispies grain is expanded during by heat and microwave energy, and produced water vapour and steam.Steam pressure by water vapour and heating causes that fin 38a, 36a, 34b and 34c launch, and perhaps launch along fold line 38,36,32a and 32b respectively, continuously so that diapire 20 and roof 22 have continuous contour shape.Each diapire 20 and roof 22 are according to the shape of its peripheral 20a and 22a, expanding forms cheese, semisphere or parabolical curved profile shape, and wherein the inside face of diapire 20 and roof 22 is spaced from each other, and packaging bag 18 is expanded, its internal volume is increased, so that hold expanded rice krispies grain.At last, can understand that because packaging bag 18 has flexible characteristic, it expands towards opposed direction, form two cheeses.But, do not have extension property owing to form the packing of diapire 20 and roof 22, between diapire 20 and roof 22, interconnect part, the part adjacent with 22a with peripheral 20a may be gathered together, perhaps form fold, if shown in accompanying drawing 1,8 and 9 was known, diapire 20 and roof 22 became cheese from general aspect.Certainly packaging bag 18 is by the paper material moulding of routine, be used to hold the rice krispies grain, and size, shape and the direction of this fold are not further processed, what this fold was general can not form around peripheral 20a and 22a equably, and along with different packaging bag 18 changes.

The packaging bag 18 that provides according to the preferred embodiment of the present invention has the characteristics more superior than microwave popcorn packaging bag of the prior art.Particularly, when at first micro-wave oven is put in packaging bag, the fold of conventional popcorn packaging bag side is at least along the local extension of the expanded rice krispies grain of wanting of filling.Therefore, initial microwave energy must penetrate the multilayer material that forms packaging bag.Because not every microwave energy can both penetrate packing, thus the packaged material absorption of a part of microwave energy, so this part microwave energy can not make the rice krispies grain of filling expanded.But,,, partly extend along the whole rice krispies grain that is filled by independent one deck packing of diapire 20 that forms packaging bag 18 and roof 22 from the beginning microwave cooked.Therefore, arrive before the rice krispies grain be filled at microwave energy, initial microwave energy does not need to penetrate the multi-layer packaging material, thus microwave energy usually can snap action in a large amount of things that is filled.

And, flat packaging bag 18 has cheese or parabolic shape, and it keeps unpuffed rice krispies grain to flock together, even at the packaging bag diapire 20 of this shape, more than one deck packing also is so, and vane 30 closed contacts in unpuffed rice krispies grain and the preferred embodiment.This closely in heaps or agglomerating not expanded rice krispies grain is unusual actv. for receiving microwave energy.Particularly, for load in heaps, promptly not expanded rice krispies grain transmits fewer heat, just can elevate the temperature with very fast speed.This load in heaps bigger sinuousness of comparing with the load of dispersion.

And because that cheese and parabolic shape have an area small size is big, with the similar relation of ball shape, diapire 20 and roof 22 material microwave energy absorbed are less than rice krispies grain microwave energy absorbed far away.

In addition, when the rice krispies grain is expanded, just from not expanded rice krispies grain in heaps, spray at expanded rice krispies grain.But the packaging bag 18 of preferably implementing to hold confession according to the present invention allows unpuffed rice krispies grain to be located in to have on the diapire 20 of definite shape packaging bag, done as Japanese WOK PAN.And, expand according to the packaging bag 18 that the embodiment of the invention provides, do not produce crease or crack, this crease or crack will cause unpuffed rice krispies grain to leave the thing that is filled in heaps, and packaging bag 18 provided by the invention can prevent that unpuffed rice krispies grain from leaving not expanded rice krispies grain and/or vane 30 in heaps.

In addition,, push or make packaging bag 18 vibrations, make unpuffed rice krispies grain land thus downwards, and contact diapire 20 once more, perhaps on diapire 20, slide by expanded rice krispies grain just at expanded rice krispies grain collision diapire 20 and roof 22.Particularly, the expanded and unpuffed rice krispies grain of vibration guiding of packaging bag 18 produces beating action in packaging bag 18, make unpuffed and expanded rice krispies grain separately according to weight, because unpuffed rice krispies grain has bigger density, it arrives the bottom of expanded rice krispies grain.At this on the one hand, by the application force that just hangs down diapire 20 and roof 22 in expanded rice krispies grain collision, make diapire 20 strengthen the ability that packaging bag 18 is waved towards any direction with cheese or parabolic shape, thereby separate unpuffed rice krispies grain according to weight to the full extent, make it arrive the bottom of expanded rice krispies grain.

Also has the performance of dilated food in various different micro-wave ovens that the flat packages 18 of cheese or parabolic shape has improved greatly that the customer uses.Under average service conditions, under various known situations of change, instruction according to the preferred embodiment of the invention, improved packaging bag 18 is compared with the quick-fried corn kernel packaging bag made of paper of conventional shape, and expanded performance has improved 40%.These variations include, but are not limited to different voltages, volume and/or the efficient of micro-wave oven, the fluctuation of electric current, the different magnetron that adopts manufacture method production identical or inequality, different waveguides, and analogue.

If vane 30 is set in a preferred embodiment,, do not need to be provided with vane 30 in the zone that not expanded rice krispies grain can not arrive.Therefore, vane 30 only is positioned to the bottom position of the diapire 20 with definite shape, because diapire 20 has cheese or parabolical curve shape, vane 30 has minimum size.At this on the one hand, particularly be cheese or parabolic curve shape, can adopt vane 30 with minimum material shape owing to have the diapire 20 of definite shape, for example circular, perhaps have discrete shape area.In preferred most preferred embodiment, vane 30 is positioned among fold line 32a, the 32b, 36 and 38.

Also have, diapire 20 and roof 22 have circular periphery 20a and 22a, and therefore expanded rice krispies grain distributes in packaging bag 18 and enters very broad zone.Along with the further propagation of expanded rice krispies grain in microwave oven cavity, the ability that expanded rice krispies grain absorbs heat further weakens, and finally can not transmit microwave energy.In addition, expanded rice krispies grain has smaller endergonic profile, can reasonable heat dispersing with expanded rice krispies grain, can not allow thus that expanded rice krispies grain continues the excessive cooking, incinerates, burns, charing, perhaps with any other form drying.In packaging bag 18, this structure is not easy to make expanded product coking.

And diapire 20 and roof 22 have circular periphery 20a and 22a, so packaging bag 18 can both be worked in the various micro-wave ovens of rotating table well being provided with or not having.No matter the customer is placed on packaging bag 18 in the micro-wave oven Anywhere, always packaging bag 18 to expand so that make himself near near the center of micro-wave oven.This annular peripheral rim profile does not allow packaging bag 18 to be hooked on the corner of micro-wave oven, because this corner in micro-wave oven, typical temperature is lower.The circular periphery profile always can rotate on the turntable of micro-wave oven continuously.The center of this packaging bag 18 and/or the position of rotation allow packaging bag 18 motions, so that make the possibility reduction that occurs special heating region and the concentrated radiation areas of electronics in packaging bag 18 special parts, make most rice krispies grains in microwave cooked process, the probability of accepting heat and electron irradiation is consistent with each other and even.

Should be understood that in preferred most preferred embodiment fin sealing area 28 forms the passage of part released vapour in microwave cooked process in packaging bag 18.In addition, after packaging bag taken out from micro-wave oven, the customer can catch part 22b and 22c from fin sealing area 28 opposed sides, described part 22b and 22c are drawn back, thereby further open fin sealing area 28, and if desired, near interconnecting peripheral 20a and the 22a and between the fin sealing area 28, can adopt mode as shown in Figure 9, so that the inside of the hollow of packaging bag 18 is opened, can take out especially and be positioned at the expanded rice krispies grain of packaging bag 18 in-to-ins.Therefore can learn that packaging bag 18 has roof 22, described roof 22 has strippable closure member, is perfectly clear, and 40 packaging bag 18 can be used as bowl and uses.

In the packaging bag 18 of another kind of form, constitute operable bowl by the roof 22 that has multilayer material to constitute.In the preferred embodiment shown in Figure 10 and 11, roof 22 is formed by the first wall part 22d and the second wall part 22e, and the described first wall part 22d and the second wall part 22e are interconnected by sealing area 40.In preferred embodiment shown in the drawings, first wall part 22d has annular shape usually, and it comprises outward flange 22a, and inside circumference 22, and in preferred most preferred embodiment, described inside circumference 22 forms circular open.The size of described this circular open is enough to allow user's hand enter the inside of packaging bag, and takes out at the expanded rice krispies grain of packaging bag in-to-in.Wall part 22e has round-shaped usually, and it comprises outward flange 22g, and the shape of described outward flange 22g is corresponding with peripheral 22f usually, but its size is less times greater than peripheral 22f.In preferred most preferred embodiment, outward flange 22d has the part of extension 42, and described extendible portion 42 exceeds round-shaped, and the size of described extendible portion 42 is in the scope of the peripheral 22a of roof 22.Sealing area 40 has annular shape, and it has internal diameter, and described internal diameter is corresponding with the inside circumference 22f of wall part 22d, and has external diameter, and described external diameter is corresponding with the outward flange 22g of wall part 22e.In preferred most preferred embodiment, extendible portion 42 is non-caked, particularly as shown in the drawing, and non-caked wall part 22d, the perhaps other parts of packaging bag 18 or roof 22.In addition, in preferred most preferred embodiment, sealing area 40 comprises: the first, strippable enclosure portion 40a, and described enclosure portion 40a has the circular arc extendible portion, and the length of described extendible portion approximates the length of extending along periphery of extendible portion 42 greatly; The second, interconnect part 40b, its development length is corresponding to all the other peripheral extendible portions of sealing area 40.Particularly, in microwave cooked process, hermetic unit 40a is destroyed, so that steam channel is provided, and in hope, packaging bag 18 is opened, yet meanwhile, make hermetic unit 40b, and adhesive tape 26 still is maintained fixed connection in microwave cooked process.

According to preferred embodiment provided by the invention, below surperficial described mode be manufactured on the packaging bag 18 shown in accompanying drawing 10 and 11.Particularly, the wall part 22e and the wall part 22d of setting overlap, and wall part 22d and 22e position and diapire 20 are overlapping.Make adhesive tape 26 interconnect part 26a and sealing area 40 suitably activates so that wall part 22d and 22e are interconnected, thereby form roof 22, and roof 22 and diapire 20 interconnected.According to preferred embodiment provided by the invention, at first after interconnecting part 26a and sealing area 40 activation, usually adopt and the method described in the accompanying drawing 3～7 noted earlier, fold, fill, seal, fold and external packing for interconnecting part 26a and sealing area 40 and packaging bag 18.

In accompanying drawing 10 and 11, packaging bag 18 is expanded, adopt and the similar method of mode shown in the accompanying drawing 1,8 and 9, form cheese respectively in the both sides of packaging bag 18.Therefore, provide according to the preferred embodiment of the invention, have the advantage of cheese, semisphere and parabola shaped container too in the packaging bag 18 of the expansion shown in accompanying drawing 10 and 11.

Should be understood that in microwave cooked process make local unlatching of part 40a of sealing area 40, so that for the steam in the packaging bag 18 provides passage, and meanwhile, adhesive tape 26 still is maintained fixed with sealing area 40b and is connected.After packaging bag 18 taken out from micro-wave oven, the customer can use the thumb of an one hand and one or many other fingers to catch extendible portion 42, and upward or diametric(al) pulling extendible portion 42, make extendible portion 42 break away from the fixation of adhesives subsequently.Therefore, extendible portion 42 has the advantage that can make the customer be convenient to grasping.If desired, can catch packaging bag 18 by customer's another hand, for example, be grasped in the edge that has adhesive tape 26 to form between diapire 20 and the roof 22, the position of grasping is corresponding to the boundary position at extendible portion 42 places.Because hermetic unit 40a has peelable characteristic, the initial motion of extendible portion 42 is opened the remaining fixed part of hermetic unit 40a, so that make wall part 22e and wall part 22d overlapping areas, and hermetic unit 40a separates with wall part 22d, do not tear phenomenon and do not produce wall part.But, in preferred most preferred embodiment, along with extendible portion 42 continues to move, because hermetic unit 40b has bigger captive joint zone, wall part 22d is torn, it tears mode as shown in clear among Figure 11, rather than wall part 22e separates with wall part 22d.In preferred most preferred embodiment, wall part 22e and torn corresponding to the part of sealing area 40 wall part 22d, thus take off from the remainder of packaging bag 18 fully.After wall part 22e taken off from packaging bag 18, the shape of wall part 22d played fixedly content as annular lug in the remainder of packaging bag 18, and packaging bag 18 this moment is used as bowl.

Should be understood that in above-mentioned preferred most preferred embodiment,, and, make packaging bag 18 form bowl by the multiple-structure that wall part 22d and 22e provide by the strippable closing appliance that forms by fin sealing area 28.Equally, can adopt other modes, but comprising using penetrable device tear-strap, cut line, thin sealant, and and the hierarchy of control form bowl.Equally, though strippable closing appliance can be provided in roof 22, can believe, its advantage is to form bowl at least, carries out in the microwave cooked process again, and strippable closing appliance is with destroyed, thereby formation steam channel, this steam channel also can form in other positions, for example, forms at hermetic unit 26b place.Particularly, after the rice krispies grain is expanded, between user's finger, catch simultaneously diapire 20 and roof 22, draw back diapire 20 and roof 22, the amount that remaining fixed part 26b and part 26a are separately needed, so that pour out expanded rice krispies grain, roof 22 is separated fully with diapire 20, thereby form bowl by diapire 20 from peripheral extendible portion.

In the preferred most preferred embodiment shown in accompanying drawing 1～3 and 8～12, though diapire 20 and roof 22 directly interconnect at adjacent peripheral 20a and 22a place, in an embodiment provided by the invention, diapire 20 and roof 22 can interconnect by sidewall, described sidewall increases the internal dimensions of packaging bag 18 hollows under packaging bag 18 swelling states.In another preferred embodiment of the present invention, the diapire 20 of packaging bag 18 and roof 22 interconnect by interconnective angle support side plate 50 and 52, described angle support side plate 50 and 52 is set between diapire 20 and the roof 22, shown in accompanying drawing 13～16.By this way, angle support- side wallboard 50 and 52 comprises the first plate portion 50a, 52a and the second plate portion 50b, 52b respectively, and it interconnects along fold line 50c and 52c respectively.In preferred embodiment shown in the drawings, fold line 50c and 52c are the straight lines of aiming at.Angle support- side wallboard 50 and 52 the first plate portion 50a, 52a and the second plate portion 50b, 52b comprise edge 50ab, 50bd, 52ab, 52bd respectively, and they have respectively corresponding to the peripheral 20a of diapire 20 and roof 22 and the arc shape of 22a.Interconnect by adhesive tape 26 edge 50ab and 52ab and peripheral 20a, edge 50bd and 52bd and peripheral 22a interconnect, and respectively plate portion 50a, 50b are separated with 52a, 52b are parallel with 52 by fold line 50.

In preferred embodiment shown in the drawings, the maximum width of each plate portion 50a, 50b and 52a, 52b is generally perpendicular to fold line 50c and 52c between circumferential edges 50ab, 50bd, 52ab, 52bd, and it is less than 1/2nd of upperlimit between peripheral 20a and the 22a (it is perpendicular to fold line 50c and 52c).In practice, shown in accompanying drawing 13 was clear, angle support side plate 50 and 52 width were basically less than the rice krispies particle packing spare tabs width of routine, particularly by this way, promptly with the degree of minimum, perhaps not with vane 30 and/or filling, overlapping by expanded rice krispies grain.Therefore, initial microwave energy did not need to penetrate the multi-layer packaging material before arrival is filled thing, and therefore microwave energy is filled a large amount of rapidly absorptions of thing usually.But plate portion 50a, 50b and 52a, 52b have the width dimensions with respect to distance between diapire 20 and the roof 22, its can with the preferred embodiment of the invention in provided inequality.

According to the preferred embodiments of the present invention, can make the packaging bag 18 shown in the accompanying drawing 13～16 according to following manner.Particularly, along fold line 50c and 52c folded side plate 50 and 52, so that the outside face of the outside face of plate portion 50a, 52a and plate portion 50b, 52b is overlapped.The inside face of diapire 20 and roof 22 leans on mutually with the fold line 50c and the 52c at side plate middle part, the inside face of diapire 20 leans on mutually with the inside face of drafting board part 50a, 52a, the inside face fish plate portion 50b of roof 22, the inside face of 52b lean on mutually, and peripheral 20a, 22a, 50ab, 50bd, 52ab, 52bd, alignment mutually.At first, the part 26a that interconnects of adhesive tape 26 is suitably activated, diapire 20 and roof 22 are interconnected by the fold line 50c and the 52c of centre, and adjacent with peripheral 20a and 22a, secondly, interconnect hermetic unit 26b, diapire 20 and plate portion 50a and 52a are interconnected, make peripheral 20a, 50ad and 52ad adjacent, roof 22 and plate portion 50b and 52b are interconnected, make peripheral 22a, 50bd, 52bd adjacent.In preferred embodiment provided by the invention, after the adhesives initiate activation, can adopt noted earlierly, the hermetic unit 26a in the packaging bag 18 is interconnected, then fold, fill, seal, folding and external packing at the general fashion shown in the accompanying drawing 3～7.

Other modes that provide according to the preferred embodiment of the invention are provided, can make packaging bag 18 with angle support side plate 50 and 52.For example, from the microwave packaging bag material of mono-material roll-shape, vane 30 is set as required, and application of adhesive band 26 in position.Inwardly can form the bag material edge of folding material roll-shape, sealing the margin or fin form tubular package, inside as required angle folding support side plate part.Then, tubular package is carried out heat seal, and use die-cut, form suitable package with circular contour.When the packaging bag 18 shown in the formation accompanying drawing 1～6,8 and 9, at the edge of tubular package and the suitable relative position of fin hermetic unit, vane 30 is set, and it is provided with the position and also can be oppositely arranged along the fold line 50c of angle support side plate part 50 and 52 and the position of 52c.Equally, each element of packaging bag 18 can be formed by the disk material that separates, before or after making adhesive tape 26 activation, with these element cutting formings.Possible situation is, though in a preferred embodiment, in each angle support side plate part 50 and 52, be respectively equipped with two plate portion 50a, 50b, 52a, 52b, can differentiate, angle support side plate 50 and 52 can also be provided with additional plate portion, and it has width identical or inequality.

In the preferred embodiment shown in the accompanying drawing 13～16, the outward flange edge 20 and 22 of diapire 20 and roof 22 has the circular arc profile of ovalize.In preferred most preferred embodiment, the peripheral 20a and the 22a of diapire 20 and roof 22, has peripheral extendible portion 54 with plate portion 50 and 52 peripheral 50ab, 50bd, 52ab, 52bd, it extends beyond the circular contour of peripheral 20a and 22a, and adhesive tape 26 and second ends opposed, that interconnect part 26b are adjacent.

Provide according to the preferred embodiment of the present invention, the packaging bag 18 shown in Figure 13～16 has the advantage identical with front embodiment and other advantages.Particularly, when the rice krispies grain just expanded, and packaging bag 18 is when expanding, angle support side plate part 50 and 52 is launched along fold line 50c and 52c, thereby makes plate portion 50a, 50b and plate portion 52a, 52b roughly form dull and stereotyped state.But even be provided with angle support side plate part 50 and 52, roof 20 and roof 22 are under packaging bag 18 internal pressure effects, because the contour shape of periphery 20 and 22, packaging bag 18 is expanded and formed cheese, semisphere or parabola shaped shape.Therefore, in this embodiment provided by the invention, the packaging bag 18 of expansion has the advantage of cheese, semisphere or parabola shaped profile container equally.In this respect, because under flat form, peripheral 20a and 22a have cartouche, and angle support side plate part 50 and 52 expands, the packaging bag 18 shown in the accompanying drawing 13～16, and under swelling state, packaging bag 18 forms circular contour usually in birds-eye view.

In a preferred embodiment, the place of interconnecting between the angle support side plate part 50 and 52 of diapire 20 and roof 22 and centre forms strippable closure member, employing is similar to opens laterally grabbing-pull technology of rectangle microwave rice krispies particle packing bag in the prior art, packaging bag 18 is opened.Particularly, hermetic unit 26b is as peelable closure member, and in microwave cooked process, hermetic unit 26b is destroyed, so that form steam channel, and, when hope is opened packaging bag 18, easily it is separated.Particularly, in preferred most preferred embodiment, form marginal stretch and divide 54, the place that interconnects at diapire 20 and plate portion 50a, usually form angled construction, customer's thumb and four fingers are caught this part, and form the horn shape part at the place of interconnecting of roof 22 and plate portion 52b usually, in preferred most preferred embodiment, form marginal stretch and divide 54, thumb and four fingers by customer's another hand are caught this part, and draw back above-mentioned horn shape part, thereby open the adhesive tape 26 between diapire 20 and plate portion 52, and, open and be positioned at roof 22 and plate portion 50b, and roof 22 and diapire 20.Then, in preferred most preferred embodiment, form marginal stretch and divide 54 places, in the grasping packaging bag 18, interconnect the interconnective horn shape part of part and opposed roof 22 and plate portion 50b at diapire 20 and plate portion 52a, horn shape is partly drawn back, thereby open the adhesive tape 26 between diapire 20 and plate portion 52, and, open and be positioned at roof 22 and plate portion 50b, and roof 22 and diapire 20.The opening degree of adhesive tape 26 is either large or small, and this can be selected by the customer, and promptly narrow opening is convenient to puffed rice is poured in the bowl, otherwise roomy opening directly takes out puffed rice easily from packaging bag 18 edible.Because the customer gets used to using horizontal grasping to draw back technology, open conventional rectangle popcorn packaging bag, empirical evidence and is not utilized horizontal grasping opening technology to open packaging bag 18 to compare, and packaging bag shown in the accompanying drawing 13～16 18 is easier to be accepted by the customer.Also have, if shown in the accompanying drawing 13～16, when peelable closure member forms at the place of interconnecting of diapire 20 and roof 20, and as shown in figure 12, according to the preferred embodiments of the present invention, roof 22 can have single single-piece element to form, particularly do not need additional expensive sandwich type element structure, it does not need to adopt the fin sealing area 28 shown in accompanying drawing 1,8 and 9, does not perhaps need to adopt multi-layer portion 22d shown in accompanying drawing 10 and 11 and 22e, but the perhaps glass closure member of other structures.

Though packaging bag 18 is opened along peripheral 20a and 22a, according to the preferred embodiments of the present invention, packaging bag 18 shown in the accompanying drawing 13～16 can also constitute bowl, but its mode that adopts is different from the structure of packaging bag 18 shown in accompanying drawing 1,8,9,11 and 12.Particularly, expanded along with the rice krispies grain, fold line 50c in the middle of diapire 20 and the roof 22 and 52c extend towards the direction perpendicular to adhesive tape 26 along sizable camber line size.Equally, plate portion 50a, 50b, 52a, 52b launch mutually relatively, are parallel to adhesive tape 26 with sizable size radian and extend, and fold line 50c and 52c are positioned at its middle part.Therefore, form quite flat stayed surface, its particle is placed on desktop, sales counter or the analogue, so that by diapire 20 and roof 22 grasping packaging bags 18, wherein said diapire 20 and roof 22 extend towards vertical direction, and are in stable non-heeling condition.

In addition, in a preferred embodiment, by centering on the fold line that is higher than expanded rice krispies grain, folding diapire 20 and/or roof 22 and/or plate portion 50 and/or 52, can further strengthen packaging bag shown in the accompanying drawing 13～16 18 and constitute the bowl structure, thereby constitute packaging bag inside face shown in the accompanying drawing 15.At this on the one hand, can by the customer separately plate portion 50 and 52 and diapire 20 and roof 22 between adhesive tape 26, the degree of unlatching can equal the surperficial position of expanded rice krispies grain.But when folding like this, customer's hand is not easy to contact oil or the grease that remains in packaging bag 18 inside faces, takes out the rice krispies grain simultaneously from packaging bag 18, and is not easy contact side plate portion 50 and 52, diapire 20 and roof 22 outside faces.Should be understood that diapire 20 and roof 22 interconnective edges and plate portion 50 and 52 and diapire 20 and roof 22 interconnective edges have the advantage that is even more important, it does not need to tear packaging bag 18, and the bowl structure through strengthening can be provided.

According to the preferred embodiments of the present invention, extendible portion 42 and 54 provides multiple use.At first, general extendible portion 54 extends towards radial direction from the packaging bag 18 of expanding, and these two kinds of extendible portions 42 and 54 form the indication that can see, are illustrated in Open Here packaging bag 18, because extendible portion 42 and 54 has the grasping lug that can see.The second, extendible portion 42 and 54 provides the zone that increases for customer's grasping packaging bag.Also have, owing to the in-to-in outside of extendible portion 54 positions towards adhesive tape 26 and packaging bag 18, extendible portion 54 can not equally with the other parts of packaging bag be touched heating, the other parts of packaging bag 18 and expanded rice krispies grain direct contact.Therefore, extendible portion 54 is avoided its Contact Heating surface for the customer uses package, and safety is provided.Equally, extendible portion 42 also provides safety performance for the customer.Should see, because the peripheral 22g of the part 22e of roof 22, round-shaped with the peripheral 20a of the part 22a of diapire 20 and roof 22, and the circular shape of peripheral 50ad, 50bd, 52ad, 52bd, and because diapire 20 and roof 22, plate portion 50 and 52 is usually by being cut in the continuous material rolled sheet material, the extendible portion 42 that provides according to the preferred embodiment of the present invention and 54 can be from the material rolled sheet material other do not use and the part abandoned in make so that do not increase the fringe cost that extendible portion 42 and 54 are set.

According to the preferred embodiments of the present invention, extendible portion 42 and 54 can be used for packaging bag 18 equally, and angle support side plate part 50 and 52 is not set in the described packaging bag 18.As an example, as required, between the peripheral 20a of diapire 20 and roof 22 and 22a, strippable closure member is set, so that can pour out expanded rice krispies grain, described extendible portion 54 can form at peripheral 20a and 22a place, so that separate adhesive tape 26 herein.This structure in use makes extendible portion 54 moulding, is arranged to the continuous part in the peelable closure member as required.Equally, extendible portion 54 can form at the marginal portion of fin sealing area 28 22b and 26c place, therefore as shown in figure 17, and when being provided with strippable closure member with convenient fin sealing area 28, catch extendible portion 54 by the customer, draw back packaging bag 18 towards the opposite side of sealing area 28.

In addition, though can believe, packaging bag 18 has special manufacturing, filling and folding mode, have be better than conventional, finally have an advantage of rectangular shape package, according to the embodiment of the invention, can adopt that other modes are made, filling and/or folding bag pack 18.At this on the one hand, can as required packaging bag 18 be folded into the profile that finally has other shape, its shape can be different from the packaging bag shape of selling of other routines on market, and forms packaging bag 18 outstanding, that have unique shape.

Claims (43)

1, a kind ofly be used to hold cereal, in micro-wave oven, make the inflatable microwave package of corn expanding, in the package of combination, comprise: packaging bag (18) with diapire (20) and roof (22), described packaging bag (18) also comprises first jiao of support side plate (50), with second jiao of support side plate (52), each diapire (20) and roof (22) and first and second jiaos of support side plate are formed by flexible sheet material, diapire (20) has the outward flange (20a) that is circular arc basically, roof (22) has with the outward flange of diapire (20) corresponding, basically the outward flange that is circular arc, described first jiao of support side plate (50) and second jiao of support side plate (52) are respectively at least by the first and second plate portion (50a, 50b, 52a, 52b) form, it is overlapped, and the described first and second plate portion (50a, 50b, 52a, 52b) comprise outward flange (50ad, 50bd, 52ad, 52bd), described outward flange (50ad, 50bd, 52ad, 52bd) corresponding to the outward flange (20a of diapire (20) and roof (22), 22a), diapire (20) and roof (22) are at its outward flange (20a, adjacent 22a) interconnects, diapire (20) and roof (22) interconnect by first jiao of support side plate (50) and second jiao of support side plate (52), described first jiao of support side plate (50) and second jiao of support side plate (52) and outward flange (20a, 22a, 50ad, 50bd, 52ad, 52bd) adjacent, first plate portion (the 50a of diapire (20) and first jiao of support side plate (50) and second jiao of support side plate (52), 52a) interconnect, second plate portion (the 50b of roof (22) and first jiao of support side plate (50) and second jiao of support side plate (52), 52b) interconnect, when cereal in micro-wave oven by expanded or when expanding, diapire (20) and roof (22) expand, and form opposed two cheese profiles.

2, according to the described inflatable packaging microwave oven spare of claim 1, it is characterized in that: outward flange (20a, 22a) ovalize profile under flat form of described diapire (20) and roof (22).

3, according to the described inflatable packaging microwave oven spare of claim 1, be characterised in that: packaging bag (18) also comprises strippable closure member, in microwave cooked process, described strippable closure member is damaged, so that the steam that allows to assemble is discharged, and allow to open the package (18) are so that take out cereal expanded or that expand.

4, according to the described inflatable packaging microwave oven spare of claim 3, it is characterized in that: strippable closure member forms at the place between diapire (20) and roof (22) and in the middle of first and second jiaos of support side plate.

5, according to the described inflatable packaging microwave oven spare of claim 4, it is characterized in that: also comprise being formed on the combination of the outward flange extendible portion of diapire (20) and roof (22) at least.

5, according to the described inflatable packaging microwave oven spare of claim 4, it is characterized in that: strippable closure member forms in roof (22).

6, according to the described inflatable packaging microwave oven spare of claim 5, it is characterized in that: described extendible portion (54) is positioned on the outward flange (20a, 22a) of peelable closure member (26b) opposite side.

7, according to the described inflatable packaging microwave oven spare of claim 1, it is characterized in that: diapire (20) and roof (22) interconnect part (26a) and second by first and interconnect part (26b) its outer edges (20a, adjacent 22a) interconnects, described first interconnects part (26a) extends outward flange (20a, essential part 22a), cereal is packed into before or after the packaging bag (18), first interconnects part (26a) and outward flange (20a, 22a) interconnect, second interconnects part (26b) allows separately outward flange (20a, 22a), so that interconnect part (26b) position cereal of in packaging bag (18), packing into second, and, after the cereal of in packaging bag (18), packing into, interconnect part (26b) position second, make outward flange (20a, 22a) interconnect.

8, according to the described inflatable packaging microwave oven spare of claim 1, it is characterized in that: vane (30) is gone up at diapire (20) and is extended.

9, according to the described inflatable packaging microwave oven spare of claim 1, it is characterized in that: described diapire (20) and roof (22) and described first and second jiaos of support side plate all are to make with paper.

10, according to the described inflatable packaging microwave oven spare of claim 1, it is characterized in that: the cereal that holds in the package is rice krispies particle shape formula.

11, according to the described inflatable packaging microwave oven spare of claim 1, it is characterized in that: the cheese shape of diapire (20) is parabolic shape, and it flocks together not expanded or unexpanded cereal.

12, according to the described inflatable packaging microwave oven spare of claim 1, it is characterized in that: the cheese contour shape of diapire (20) is parabolic shape, when corn expanding or expansion bump packaging bag (18), this application force will pass through parabolic outlines, enhanced package bag (18) is towards the oscillating action of all directions, so that, make it arrive the bottom of expanded or the cereal that expanded to greatest extent, with not expanded or unexpanded cereal separately according to weight.

13, a kind ofly be used to hold cereal, in micro-wave oven, make the inflatable microwave package of corn expanding, in the package of combination, comprise: packaging bag (18) with diapire (20) and roof (22), each diapire (20) and roof (22) are formed by flexible sheet material, diapire (20) has the outward flange (20a) that is circular arc basically, roof (22) has with the outward flange of diapire (20) corresponding, basically the outward flange that is circular arc, diapire (20) and roof (22) are at its outward flange (20a, adjacent 22a) interconnects, and limit an inside to load one bag of cereal of accepting the microwave energy effect, when cereal expanded or when expanding in micro-wave oven, diapire (20) and roof (22) expand, form opposed two cheese shapes, packaging bag (18) also comprises strippable closure member, in microwave cooked process, described strippable closure member is damaged, so that the steam that allows to assemble is discharged, and allow to open the package (18) are so that take out cereal expanded or that expand; Go up at least the first extendible portion (42,54,56) that forms in packaging bag (18), described first extendible portion (42,54,56) is adjacent with the sealing area of packaging bag (18), lateral direction towards sealing area is extended, so that the customer firmly grasps described extendible portion, outwards take out expanded cereal from sealing area place part.

14, according to the described inflatable packaging microwave oven spare of claim 13, it is characterized in that: the interconnect place of strippable closure member between diapire (20) and roof (22) forms.

15, according to the described inflatable packaging microwave oven spare of claim 13, it is characterized in that: go up second extendible portion (54) that forms in packaging bag (18), on the outward flange (20a, 22a) of diapire (20) and roof (22), form first and second extendible portions (54), described first and second extendible portions (54) extend towards the outside that interconnects part (26).

16, according to the described inflatable packaging microwave oven spare of claim 15, it is characterized in that: described extendible portion (54) is positioned on the outward flange (20a, 22a) of peelable closure member (26b) opposite side.

17, according to the described inflatable packaging microwave oven spare of claim 15, it is characterized in that: outward flange (20a, 22a) the ovalize profile of described diapire (20) and roof (22).

18, according to the described inflatable packaging microwave oven spare of claim 15, it is characterized in that: diapire (20) and roof (22) directly interconnect, and adjacent with outward flange (20a, 20b).

19, according to the described inflatable packaging microwave oven spare of claim 13, it is characterized in that: one second extendible portion (54) is formed in the packaging bag (18), in packaging bag (18), comprise by the first and second wall part (22b, 22c) the roof of Xing Chenging (22), sealing area (28) is positioned at the first and second wall part (22b, 22c), at the first and second wall part (22b, sealing area 22c) (28) forms peelable closure member, at the first and second wall part (22b, 22c) go up formation first and second extendible portions (56), described extendible portion (56) is at the first and second wall part (22b, sealing area 22c) (28) stretches out.

20, according to the described inflatable packaging microwave oven spare of claim 19, it is characterized in that: sealing area (28) extends between two points on the outward flange (22a) of roof (22).

21, according to the described inflatable packaging microwave oven spare of claim 20, it is characterized in that: sealing area (28) extends along the diameter of the outward flange shape of roof (22).

22, according to the described inflatable packaging microwave oven spare of claim 13, it is characterized in that: described roof (22) has outlet (22f), described packaging bag (18) also comprises enclosure portion (22e), described enclosure portion has outward flange (22g), the size of described outward flange (22g) is greater than the size of outlet (22f), described packaging bag (18) comprises sealing area (40), described sealing area (40) is positioned at enclosure portion (22e) and around between the top wall portion (22d) of outlet (22f), on the outward flange (22g) of enclosure portion (22e) extendible portion (42) is set.

23, according to the described inflatable packaging microwave oven spare of claim 22, be characterised in that: the outward flange (22g) of outlet (22f) and enclosure portion (22e) is rounded basically.

24, according to the described inflatable packaging microwave oven spare of claim 23, it is characterized in that: the size of the outward flange (22a) of roof (22) is greater than the size of outlet (22f); The size of extendible portion (42) is positioned in the scope of outward flange (22a) of roof (22).

25, according to the described inflatable packaging microwave oven spare of claim 24, it is characterized in that: the outward flange of described roof (22) is circle under flat form.

26, a kind ofly be used to hold cereal, in micro-wave oven, make the inflatable microwave package of corn expanding, in the package of combination, comprise: in the package of combination, packaging bag (18) has inside, so that hold the cereal of filling, and make package accept the effect of microwave energy, described packaging bag (18) has roof (22d), described roof (22d) has outlet (22f), described packaging bag (18) also comprises enclosure portion (22e), described enclosure portion (22e) has outward flange (22g), the size of described outward flange (22g) is greater than outlet (22f), described packaging bag (18) has the sealing area (40) that centers on outlet (22f) between enclosure portion (22e) and roof (22d), and packaging bag (18) is in swelling state after receiving microwave energy.

27, according to the described inflatable packaging microwave oven spare of claim 26, it is characterized in that: the outward flange (22g) of described outlet (22f) and enclosure portion (22e) has circular contour usually.

28, according to the described inflatable packaging microwave oven spare of claim 26, it is characterized in that: also be included in the package of combination, outward flange (22g) at enclosure portion (22e) is gone up the extendible portion (42) that forms, and described extendible portion (42) extends towards the outside of sealing area (40).

29, according to the described inflatable packaging microwave oven spare of claim 28, it is characterized in that: described roof (22d) comprises outward flange (22a), the size of described outward flange (22a) is greater than outlet (22f), and wherein the size of extendible portion (42) is positioned at the scope of the outward flange (22a) of roof (22d).

30, according to the described inflatable packaging microwave oven spare of claim 29, it is characterized in that: the rounded basically profile of outward flange (22a) of described roof (22).

31, according to the described inflatable packaging microwave oven spare of claim 26, it is characterized in that: sealing area (40) comprises strippable enclosure portion (40a), in microwave cooked process, (40a) is destroyed for strippable enclosure portion, so that the steam that allows to assemble is discharged, and allow to open the package (18) are so that take out cereal expanded or that expanded by outlet (22f).

32, a kind ofly be used to hold cereal, in micro-wave oven, make the inflatable microwave package of corn expanding, in the package of combination, comprise: packaging bag (18) with diapire (20) and roof (22), each diapire (20) and roof (22) are formed by non-stretchable flexible sheet material, diapire (20) has the outward flange (20a) that is circular arc basically, roof (22) has with the outward flange of diapire (20) corresponding, basically the outward flange and the size that are circular arc, diapire (20) and roof (22) are along its outward flange (20a, adjacent junction, edge 22a) interconnects, when cereal expanded or when expanding in micro-wave oven, diapire (20) and roof (22) expand, form opposed two cheese shapes, when roof (22) and diapire (20) expansion, packaging bag (18) also comprises strippable closure member, in microwave cooked process, described strippable closure member is damaged, so that the steam that allows to assemble is discharged, and (18) allow to open the package, so that take out food expanded or that expand, described strippable closure member is the part of edge connecting portion.

33, inflatable packaging microwave oven spare as claimed in claim 32 is characterized in that: described outward flange is for circular.

34, inflatable packaging microwave oven spare as claimed in claim 34 is characterized in that: described diapire and roof its outer edges adjacent directly interconnect.

35, according to the described inflatable packaging microwave oven spare of claim 32, it is characterized in that: the outward flange place of interconnecting comprises that interconnects a peelable closure member of partial sum, the described part (26a) that interconnects is extended outward flange (20a, essential part 22a), food is packed into before or after the packaging bag (18), interconnect part (26a) and outward flange (20a, 22a) interconnect, peelable closure member (26b) allows separately outward flange (20a, 22a), so that in packaging bag (18), pack cereal in peelable closure member (26b) position, and, after the cereal of in packaging bag (18), packing into, in peelable closure member (26b) position, make outward flange (20a, 22a) interconnect.

36, according to the described inflatable packaging microwave oven spare of claim 32, it is characterized in that: the outward flange (22a) that also is included in roof (22) is gone up at least one the top extendible portion (54) that forms; Go up at least one the bottom extendible portion (54) that forms at the outward flange (20a) of diapire (20), described bottom extendible portion (54) is adjacent with strippable closure member (26b), and the lateral direction that interconnects part (26) towards periphery is extended.

37, according to the described inflatable packaging microwave oven spare of claim 36, it is characterized in that: the first and second top extendible portions (54) are gone up at the outward flange (22a) of roof (22) and are formed, it is spaced from each other, and adjacent with the opposite end of strippable closure member (26b); The first and second bottom extendible portions (54) are gone up at the outward flange (20a) of diapire (20) and are formed, and it is spaced from each other, and adjacent with the opposite end of strippable closure member (26b).

38, according to the described inflatable packaging microwave oven spare of claim 32, it is characterized in that: packaging bag (18) also comprises first jiao of support side plate (50), with second jiao of support side plate (52), first jiao of support side plate (50) and second jiao of support side plate (52) are formed by flexible sheet material respectively, described first jiao of support side plate (50) and second jiao of support side plate (52) are respectively at least by the first and second plate portion (50a, 50b, 52a, 52b) form, it is overlapped, and the described first and second plate portion (50a, 50b, 52a, 52b) comprise outward flange (50ad, 50bd, 52ad, 52bd), described outward flange (50ad, 50bd, 52ad, 52bd) corresponding to the outward flange (20a of diapire (20) and roof (22), 22a), diapire (20) and roof (22) interconnect by first jiao of support side plate (50) and second jiao of support side plate (52), described first jiao of support side plate (50) and second jiao of support side plate (52) and outward flange (20a, 22a, 50ad, 50bd, 52ad, 52bd) adjacent, first plate portion (the 50a of diapire (20) and first jiao of support side plate (50) and second jiao of support side plate (52), 52a) interconnect, roof (22) and first jiao of support side plate (50) and second jiao support the second plate portion (50b, 52b) interconnect.

39, according to the described inflatable packaging microwave oven spare of claim 38, it is characterized in that: outward flange (20a, 22a) ovalize profile under flat form of described diapire (20) and roof (22).

40, according to the described inflatable packaging microwave oven spare of claim 13, it is characterized in that: also be included in packaging bag (18) and go up at least the first extendible portion (54,56) that forms, described first extension partly (54,56) is adjacent with strippable closure member, and extend in the outside in strippable closure member.

41, according to the described inflatable packaging microwave oven spare of claim 22, it is characterized in that: also be included in packaging bag (18) and go up at least the first extendible portion (54,56) that forms, described first extension partly (54,56) is adjacent with strippable closure member, and extend in the outside in strippable closure member.

42, according to the described inflatable packaging microwave oven spare of claim 16, it is characterized in that: the interconnect place of strippable closure member between diapire (20) and roof (22) forms.

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