CN1083795C - Package bag with pressure automatic-regulating function and producing method therefor - Google Patents
Package bag with pressure automatic-regulating function and producing method therefor Download PDFInfo
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- CN1083795C CN1083795C CN98101266A CN98101266A CN1083795C CN 1083795 C CN1083795 C CN 1083795C CN 98101266 A CN98101266 A CN 98101266A CN 98101266 A CN98101266 A CN 98101266A CN 1083795 C CN1083795 C CN 1083795C
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- film
- sealing layer
- opening
- bag
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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
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- Life Sciences & Earth Sciences (AREA)
- Food Science & Technology (AREA)
- Mechanical Engineering (AREA)
- Package Specialized In Special Use (AREA)
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- Making Paper Articles (AREA)
Abstract
The present invention discloses a packaging bag which has an automatic pressure-governing functionand and a method for its manufacture. A first film 1 has a layer structure comprising a base film 1a/a layer of sealant 1b. A second film 2 has in a film 2' a layer structure of base film 2a/layer of sealant 2b and is provided with small openings (o, o) formed through in the direction of thickness by punching or by incision and with another layer of sealant 2c over the layer of sealant 2b of the film 2'. A bag is made by placing the first film 1 and the second film 2 in such a manner that the layer of sealant 1b of the former is arranged opposite to the layer of sealant 2c of the latter and by heat-sealing them.
Description
The present invention relates in heat process such as cooking, can make bag package bag of internal pressure automatic release when reaching set pressure in the bag, promptly have the package bag of pressure automatic-regulating function, and the manufacture method of this bag.
The pouch-packaged body that frozen food is housed is put into the heat process that temperature boosters such as micro-wave oven are cooked intact, can produce water vapour and make and be in overvoltage condition in the bag, bag is burst, and content is dispersed in the temperature booster of micro-wave oven etc.This breaking can cause the food loss, and temperature booster is contaminated, and then makes the problems such as reduction in service life of temperature booster, even can cause harm to people on every side.
Therefore before cooking with temperature boosters such as micro-wave ovens, the customer must cut etc. with clamp and cutter and stave packaging body, this is the ordinary consumer that responsibility has been imputed to the actual cooking packaging body, might not read service instructions owing to do not have the ordinary consumer of special knowledge, or forgotten reading, so, should make every effort to prevent the danger that the content that produced when packaging body bursts disperses from the structure of package bag itself.According to this viewpoint, existing people has proposed following several scheme.
＜water vapour discharge orifice/manually prior opening mode 〉
Japanese Patent discloses No. 211941/93 communique and discloses a kind of interior micro-wave oven raw material food receipts dress body of pressing adjustment hole that has, the embodiment that this application provides presses adjustment hole in covering of the receipts dress body that is made of main body and lid is provided with, and will press the adjustment hole locking to live in this with leakproofing material.Though not explanation is will peel off to remove this leakproofing material before implementing the micro-wave oven heating according to one's analysis.
Japanese Patent discloses No. 42977/93 communique and discloses a kind of micro-wave oven container, it is that peristome welding at container body has to run through and is provided with film steam outlet, that have the heat-sealable property in two sides, and this above film place's welding obturation live " upper film " that aforementioned discharge orifice is used.In the time will cooking, peel off upper film earlier to form steam outlet with micro-wave oven.
＜water vapour discharge orifice/automatic opening mode 〉
Japanese Utility Model discloses No. 125766/87 communique and discloses a kind of micro-wave oven heating airtight container, it is provided with the low-melting-point resin film at the base material superimposed layer that is provided with air extractor vent, be made of heat-pesistant thin film, and then constitute cover materials, and seal up the container body of pallet etc. with this lid with this packing.
Japanese Patent discloses No. 307085/88 communique and discloses a kind of cooking by microwave oven foodstuff package, its container is provided with the hole that discharge water steam is used, and, adhering to by having the valve shape thin slice that the heat-producing material layer of meeting constitutes under microwave action with lining cement on the substrate film to block to live the mode in this hole.When microwave action exothermic material layer because of absorbing the microwave adstante febre, can make lining cement softening, bonding force descends, so under the pressure effect of the water vapour that content produces, can peel away valve shape thin slice, and then water vapour is discharged.
Japanese Patent discloses No. 329179/94 communique and discloses a kind of automatic-cooking packing material, it have comprise porose pliability container and with locking live the mode in this hole bonding laminar pressure-modulation valve.This laminar pressure-modulation valve is by the pliability thin slice and be coated in a lining cement on the side and constitute, and also has lining cement uncoated part at the central portion place of pliability thin slice one side, this uncoated part not rounded (such as being equicrural triangle).
The automatic opening mode of＜sealing 〉
The Japanese Patent of asking in the applicant discloses in No. 240674/91 communique and discloses a kind of package bag, and it is a kind ofly to dispose and implement the bag that heat-sealable mode produces relatively with two sealing layers by the thin slice that at least one is had sealing layer.Part in heat-sealable of this bag is to constitute by the mode that clamps film between aforementioned sealing layer, and this film to clamp the sealing intensity of part smaller relatively than the sealing intensity of non-film centre dress part.
Yet disclose " the water vapour discharge orifice/manually opening mode " in advance that adopts in No. 42977/93 communique for disclose No. 211941/93 communique and Japanese Patent at above-mentioned Japanese Patent, the problem that needs the customer to carry out the label strip operation in advance still exists.
In " water vapour discharge orifice/automatic opening mode ", the disclosed goods of communique are disclosed No. 125766/87 by Japanese Utility Model, peeling off with bursting of low-melting-point resin film is difficult of sealing between its lid-main body divides successively, for the sealing between lid-main body can be peeled off in advance, aspect reliability, also have further improved needs.
For disclose the disclosed goods of communique No. 307085/88 by Japanese Patent,, may make the softening ratio of lining cement later, and other parts (hermetic unit) are burst in advance according to the condition difference of microwave irradiation.
The disclosed goods of communique are disclosed No. 329179/94 by Japanese Patent, must make pliability thin slice by forming at a side adhesive-applying, have non-circular non-adhesive applicating part, the mode of living the hole with locking is connected, so Fabrication procedure is comparatively complicated, universal design during by the cooking, still can not make bonding peeling off discharge level and smooth carrying out with water vapour, aspect market-oriented, also have problem, and when making packing material in enormous quantities, can produce any problem, so still be difficult to practicality.Also need to make the flexible thin slice to live the hole with enough precision lockings, this also is not easy to implement when regulating detection.
Disclose in No. 240674/91 communique disclosed " the automatic opening mode of sealing " by Japanese Patent,, also have the comparatively problem of complexity etc. of bag operation that this film uses and equipment that clamps though can realize level and smooth opening by the film portion of clamping.
Under this technical background, purpose of the present invention is exactly to provide a kind of in the process that heats with micro-wave oven etc., when reaching set pressure in the bag, can make the package bag with pressure automatic-regulating function privileged site place failure-free automatic release, Fabrication procedure excellence of bag internal pressure by bag, and manufacture method.
A kind of package bag provided by the invention with pressure automatic-regulating function, be a kind of by under the state of the relative configuration of sealing layer on the sealing layer and second film that make on the first film, implement heat-sealable and bag that construct is characterized in that also being formed with the opening that runs through the rhythmo structure part of base material film/sealing layer wherein along thickness direction by punching press or cut-out mode on second film to the first film of rhythmo structure and second film with rhythmo structure of base material film/sealing layer/sealing layer with base material film/sealing layer.
A kind of manufacturing provided by the invention has the method for the package bag of pressure automatic-regulating function, it is characterized in that by under the state of the relative configuration of sealing layer on the sealing layer and second film that make on the first film, the first film to rhythmo structure with base material film/sealing layer, and on the film of rhythmo structure, be provided with the small-sized opening that runs through along thickness direction with punching press or cut-out mode with base material film/sealing layer, and second film that also is formed with the rhythmo structure of one deck sealing layer on the sealing layer of film is implemented heat-sealable and the structure output.
Fig. 1 is the front elevation of an example of expression package bag of the present invention.
Scheme drawing when Fig. 2 cuts open for the line X-X of expression in Fig. 1 (for convenience of description with the amplification of thickness expansiveness).
Below detailed explanation the present invention.
Package bag of the present invention is by the first film 1 and second film, 2 heat-sealable methods are made.
The first film 1 is made of base material film 1a/ sealing layer 1b lamination.Second film 2 is made of base material film 2a/ sealing layer 2b/ sealing layer 2c lamination.
With respect to the sandwich structure of the sealing layer 1b of base material film 1a, can mode realizes by co-extruded, coating, extrusion coating, dry type be stacked etc.Sealing layer 1b can be for single layer, also can be for multilayer.
Similarly, with respect to the sandwich structure of the sealing layer 2b of base material film 2a, can realize by stacked etc. the mode of co-extruded, coating, extrusion coating, dry type.Sealing layer 2b can be for single layer, also can be for multilayer.In practical operation, consider from the leak tightness of sealing layer 2b and the angle of Fabrication procedure, can be afterwards at the film 2 ' that makes rhythmo structure with base material film 2a/ sealing layer 2b, again on the whole surface of this sealing layer 2b according to different occasions, also can be to cover on the part of extensive region of the position that comprises aftermentioned opening o, form sealing layer 2c by the extrusion coating mode at lid.
Above-mentioned base material film 1a, 2a can adopt material manufacture such as the plastic film, nonwoven fabric laminate plastic film of for example single layer or multilayer.Can comprise that twin shaft extends nylon film, biaxial stretched polypropylene film, twin shaft extension mylar, do not have the nylon film of extension, no extended polypropylene film as the reasonable material of base material film 1a, 2a, and they and have the laminated body that the resin bed of gas-barrier property constitutes, its thickness is about 9～40 μ m.
The material of sealing layer 1b, 2b, 2c can be polyolefin (polyethylene, ethene-vinyl acetate interpolymer, ethylene-acrylic acid fat interpolymer, ionomer polymer, ethylene-propylene copolymer body etc.), polyester, copolymerization of propylene body etc., and adds the various resin beds with heat-sealable property.In these materials, polyester can be the lower density polyester, and particularly with the low linear density polyester of various catalyst manufacturings, preferably adopting density wherein is the low linear density polyester of 0.922～0.890 (in particular for 0.920～0.900).
In general, by making relative configuration of sealing layer 2c in sealing layer 1b and second film 2 in the first film 1, the heat-sealable mode of living in to state the periphery except receiving the limit that the dress content uses of the first film 1 and second film 2 just can be made output.
Can also form bag with the knuckle mode, for this occasion, can implement behind the warpage heat-sealablely by forming to the inside on one side, make attached to the base material film warpage on the sealing layer V-shapedly on one side, and the heat-sealable mode of enforcement be made into bag after embedding seal strip.The bottom side of this bag can be divided into two strands, thereby can make bag be tetragonal three-dimensional form.
In the present invention, also by modes such as punching press or cut-outs, the small-sized opening o that only runs through by the sandwich structure part of its base material film 2a/ sealing layer 2b is set on second film 2 along thickness direction.
Can be by on the film 2 ' that constitutes by base material film 2a/ sealing layer 2b lamination, form the small-sized opening o that runs through its thickness direction with modes such as punching press or cut-outs, sealing layer 2b at this film 2 ' goes up the mode that forms sealing layer 2c again, obtains to have second film 2 that this structure constitutes.
Opening o can be provided with by punching press or cut-out mode, shapes such as when adopting impact style, it can rounded hole, slotted eye, Long Circle hole, hex hole, octagon hole, rectangular opening.When adopting the cut-out mode, can be the notch geometry of star, criss-cross, C font, Ω font etc.The number of opening o can be one in each bag, also can be several for each bag.
The size of opening o (size when being open mode for the occasion of cutting off) can be 5～300mm
2Be preferably 10～75mm
2When the size of opening o more hour, opening o is difficult to level and smooth breaking in the process of cooking, and when the size of opening o is bigger, can make this a part of intensity too small again, in circulation process, damage easily its leak tightness, and the cooking steamed deleterious when making the content cooking etc.
In best form of implementation, opening o is 5～300mm
2The punching hole of size (be preferably circular or be similar to circular hole) upward is formed with the thick sealing layer 2c of 12～30 μ m (being preferably 15～25 μ m) by the extrusion coating mode at the sealing layer 2b of film 2 '.When employing has the set-up mode of this opening o size and sealing layer 2c thickness, will be in state of equilibrium, promptly can guarantee the leak tightness of bag, can when cooking etc., under the state of the heat-sealable portion that does not destroy the packaging body periphery, make opening o spalling again.
And when opening o be punching hole, when the opening o position on second film 2 forms the cloud and mist shape that is ground-glass appearance, can also with the naked eye confirm the position that is provided with of opening o, so need not spend special time promptly can on the semifinished piece find it, when putting into the temperature booster of micro-wave oven etc., make to be formed with facing up of opening on the packaging body, and this is easy to intuitivism apprehension.
Can go up at the sealing layer 2b of film 2 ' and form in the process of sealing layer 2c with the extrusion coating mode, the metallic roll of utilizing the support rubber roll at the film 2 ' back side and implementing to cool off on sealing layer 2c makes the opening o position on second film 2 form the cloud and mist shape that is ground-glass appearance.At this moment, because the surface ratio of the opening o side of the sealing layer 2c of the opening o position of second film 2 is more coarse, so, can see the opening o position of the cloud and mist shape that is ground-glass appearance from the outside.
Package bag of the present invention with said structure formation is specially adapted to comprise moisture package bag many, cooking by microwave oven food, and can be used for the package bag of other article outside the food.
Putting into back formed packaging body such as food in package bag of the present invention, the temperature booster such as micro-wave oven of putting into of can remain untouched (do not need to cut with scissors, also do not need to implement part Kaifeng) is cooked.For this occasion, should make be provided with opening o second film, 2 one sides in temperature booster up.
In cooking heat process, can produce water vapour and press liter in making, when reaching a certain pressure and temperature, the sealing layer 2c of the opening o position on second film 2 will and earn brokenly (if several openings o is arranged on a bag to the expansion of the outside of bag, wherein some can be earned brokenly), thus the pressure in the bag is discharged into outside the bag automatically.Because bag at this moment is swelling state, and opening o is positioned at upside,, can make the content ejection yet and disperse and hold so divide many fraction even include juice.Even the heating-up temperature in the gastronomical process than higher, sharply rises temperature, interior pressure has surpassed the expectation level, also can not produce any problem.
In the ordinary course of things, press when rising when interior, heat-sealable of the bag periphery can be destroyed and content is dispersed come, but for package bag of the present invention, because the intensity of the sealing layer 2c of the inevitable ratio open o of the intensity of the peripheral heat-sealable portion of bag position is big, so can not produce this problem.
The present invention is described further to utilize embodiment below.
Fig. 1 is the front elevation of an example of expression package bag of the present invention.Section-drawing when Fig. 2 cuts open for the line X-X of expression in Fig. 1 (for convenience of description with the amplification of thickness expansiveness).In Fig. 1, Fig. 2, hs is heat-sealable portion.
Employing as the example of base material film 1a, thickness be the twin shaft of 15 μ m extend nylon film and as the example of sealing layer 1b, thickness is the mylar (the polyester manufacturing that is 0.920 low linear density forms) of the low linear density of 60 μ m by density, produce 1a/1b with the dry type overlapped way, promptly prepare the rhythmo structure film of [ONy15/LLDPE60], and with it as the first film 1.
Employing as the example of base material film 2a, thickness be the twin shaft of 15 μ m extend nylon film and as the example of sealing layer 2b, thickness is that the mylar of the low linear density of 60 μ m is the polyester manufacturing of 0.914 low linear density by density, produce 2a/2b with the dry type overlapped way, promptly prepare the rhythmo structure film 2 ' of [ONy15/LLDPE60], press the interval of 250mm then along the length direction of film 2 ', form two one group the small-sized opening o that runs through with impact style along thickness direction.Opening o is a circular port, and its diameter is 5mm (19.6mm
2).
On the face of the sealing layer 2b of the film 2 ' that is provided with an opening o side,, be that 0.914 low linear density polyester forms the sealing layer 2c that thickness is 20 μ m by density again by the extrusion coating mode.The extrusion coating mode is by by the support rubber roller at the film 2 ' back side and (temperature of metallic roll is set at 50 ℃ usually) of being implemented by the metallic roll of cooling off on the sealing layer 2c.
In this way, just made and had base material film 2a/ sealing layer 2b/ sealing layer 2c, i.e. second film 2 of the rhythmo structure of [ONy15/LLDPE60/LLDPE20].The sealing layer 2c of the opening o position on this second film 2 is the cloud and mist shape of ground-glass appearance when being observed by the outside.
By relative with the sealing layer 2c of second film 2 at the sealing layer 1b that makes the first film 1, dispose the above-mentioned the first film 1 and second film 2 and heat-sealable after, implement the mode of cut-out again by preliminary dimension, three peripheries that promptly made except the top all are formed with the bag that width is the heat-sealable portion of 10mm.Bag is of a size of high 250mm, wide 118mm, opening o be arranged on bag substantially centre, broad ways is at a distance of the position (referring to Fig. 1 and Fig. 2) of 30mm.
In above-mentioned bag, put into the food of band juice, in the width range of 10mm, peristome is carried out heat-sealable, to make several packaging bodies.When with this packaging body is intact when putting into micro-wave oven and cooking, along with the continuity of time of heat can produce water vapour, press liter in making, packaging body expands, when reaching certain pressure, the sealing layer 2c at an opening o place in two opening o positions on second film 2 will and burst to the expansion of the outside of bag, make the interior pressure automatic release of bag to bag.Even the therefore article of band juice can not make the content ejection yet and splash and hold.
The packaging body of repeatedly making more than 200 is randomly drawed, implemented heating with micro-wave oven, heat-sealable hs spalling (by the observation to heat-sealable hs, also no abnormal) took place in neither one before opening o spalling.Even the power to micro-wave oven carries out all changes, do not go wrong too.
Comparative example 1
Utilization as an example of base material film, thickness be the twin shaft of 15 μ m extend nylon film and as an example of sealing layer, thickness is the mylar (the polyester manufacturing that is 0.920 low linear density forms) of the low linear density of 60 μ m by density, produce the film of rhythmo structure with the dry type overlapped way with [ONy15/LLDPE60], and with it as film A.
As an example of base material film, thickness is that the twin shaft of 15 μ m extends on the nylon film, runs through the small-sized opening o of two one group of formation by the interval of 250mm along its length direction with impact style.Opening o is a circular port, and its diameter is 5mm (19.6mm
2).Being provided with on the base material film of opening o, use the extrusion coating mode, adopt the low linear density mylar that density is 0.920, thickness is 60 μ m to form sealing layer.So just, made film B rhythmo structure, that be formed with opening o with [ONy15/LLDPE60].
Sealing layer by making film A and relative configuration of sealing layer of film B, and above-mentioned film A and film B implemented heat-sealable mode, three peripheries that just can make except the top all are formed with the bag that width is the heat-sealable portion of 10mm.The size of bag is identical with embodiment 1.
By the mode identical with embodiment 1, utilize this bag to make packaging body, in the heat process of carrying out micro-wave oven, have opening o burst before heat-sealable the problem that quilt bursts at bag periphery place.
Put into formed packaging bodies such as food in package bag of the present invention, the temperature booster such as micro-wave oven of putting into of can remain untouched (do not need to cut, also do not need to implement part Kaifeng) is cooked.The cooking etc. heat process in, can produce water vapour and press liter in making, when reaching a certain pressure and temperature, the sealing layer 2c of the opening o position on second film 2 will and earn brokenly to the expansion of the outside of bag, thereby make the pressure in the bag be discharged into bag outer (intensity of heat-sealable the hs at bag periphery place can not burst it in advance) automatically.Because bag at this moment is swelling state, and opening o is positioned at upside,, can make the content ejection yet and disperse and hold so divide many Interior Parts even include juice.Even the heating-up temperature in the gastronomical process than higher, sharply rises temperature, interior pressure has surpassed the expectation level, also can not produce any problem.
And, setting with film 2 ' the opening opposing o of rhythmo structure with base material film 2a/ sealing layer 2b, and the setting of the sealing layer 2c on the sealing layer 2b in film 2 ', can adopt serial connection type Fabrication procedure, and do not have any trouble, because sealing layer 2c is arranged on rhythmo structure with base material film 2a/ sealing layer 2b, the whole film 2 ' that is formed with opening o is gone up (according to different occasions, also can be to cover on the part of extensive region of the position that comprises aftermentioned opening o at lid), so can not produce the problem of the location bias relative with opening o.
Claims (7)
1. package bag with pressure automatic-regulating function, it is a kind of by under the state of the relative configuration of sealing layer (2c) on the sealing layer (1b) and second film (2) that make on the first film (1), implement heat-sealable and bag that construct is characterized in that also being formed with the opening (o) that runs through the rhythmo structure part of base material film (2a)/sealing layer (2b) wherein along thickness direction by punching press or cut-out mode on second film (2) to the first film (1) of rhythmo structure and second film (2) with rhythmo structure of base material film (2a)/sealing layer (2b)/sealing layer (2c) with base material film (1a)/sealing layer (1b).
2. package bag as claimed in claim 1, the size that it is characterized in that opening (o) is 5～300mm
2, and sealing layer (2c) is the extrusion coating layer, thickness is 12～30 μ m.
3. a package bag as claimed in claim 1 or 2 it is characterized in that opening (o) is punching hole, and opening (o) position of second film (2) forms the cloud and mist shape of ground-glass appearance.
4. package bag as claimed in claim 1, it is the package bag of using than the cooking in microwave oven food of juicy for containing.
5. a manufacturing has the method for the package bag of pressure automatic-regulating function, it is characterized in that by under the state of the relative configuration of sealing layer (2c) on the sealing layer (1b) and second film (2) that make on the first film (1), the first film (1) to rhythmo structure with base material film (1a)/sealing layer (1b), and on the film (2 ') of rhythmo structure, be provided with the small-sized opening (o) that runs through along thickness direction with punching press or cut-out mode with base material film (2a)/sealing layer (2b), and second film (2) that also is formed with the rhythmo structure of one deck sealing layer (2c) on the sealing layer (2b) of film (2 ') is implemented heat-sealable and the structure output.
6. manufacture method as claimed in claim 5, the size that it is characterized in that being arranged on the opening (o) that film (2 ') locates is 5～300mm
2, and the sealing layer (2c) that is formed on the sealing layer (2b) of film (2) is the extrusion coating layer, and thickness is 12～30 μ m.
7. manufacture method as claimed in claim 6, the metallic roll that it is characterized in that utilizing the support rubber roll at film (the 2 ') back side and on sealing layer (2c), implement to cool off, sealing layer (2b) at film (2 ') upward forms sealing layer (2c) with the extrusion coating mode, and, can also make the sealing layer (2c) of opening (o) position of second film (2) be the cloud and mist shape of ground-glass appearance when opening (o) is punching hole.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30700597A JP3942709B2 (en) | 1997-11-10 | 1997-11-10 | Manufacturing method of packaging bag with automatic pressure regulation function |
| JP307005/97 | 1997-11-10 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1217277A CN1217277A (en) | 1999-05-26 |
| CN1083795C true CN1083795C (en) | 2002-05-01 |
Family
ID=17963879
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN98101266A Expired - Lifetime CN1083795C (en) | 1997-11-10 | 1998-04-09 | Package bag with pressure automatic-regulating function and producing method therefor |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP3942709B2 (en) |
| CN (1) | CN1083795C (en) |
| HK (1) | HK1018429A1 (en) |
| TW (1) | TW353644B (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3577549B2 (en) * | 2002-01-04 | 2004-10-13 | 株式会社 オフィス オザワ | Cooking pack |
| JP4872237B2 (en) * | 2005-05-02 | 2012-02-08 | 東洋製罐株式会社 | Microwave packaging bag |
| JP5948022B2 (en) * | 2011-05-23 | 2016-07-06 | 株式会社細川洋行 | Microwave oven packaging bag |
| CN103158929B (en) * | 2011-12-12 | 2015-04-01 | 廖建华 | Heating packaging bag and manufacturing method thereof |
| KR20150053970A (en) * | 2012-10-15 | 2015-05-19 | 도판 인사츠 가부시키가이샤 | Laminate film and packaging container |
| JP6199637B2 (en) * | 2013-07-16 | 2017-09-20 | 日生化学株式会社 | Frozen food packaging bags and packages |
| WO2018012503A1 (en) * | 2016-07-12 | 2018-01-18 | 三井化学産資株式会社 | Automatic fire extinguishing device |
| KR102218933B1 (en) * | 2016-09-23 | 2021-02-23 | 토요 세이칸 가부시키가이샤 | Microwave heating packaging pouch |
| JP7032092B2 (en) | 2017-09-29 | 2022-03-08 | 大和製罐株式会社 | Packaging and film |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0531176A1 (en) * | 1991-09-06 | 1993-03-10 | Unilever Plc | Packaging material |
| JPH0885580A (en) * | 1994-09-14 | 1996-04-02 | Packs:Kk | Packaging container and laminate film therefor |
-
1997
- 1997-11-10 JP JP30700597A patent/JP3942709B2/en not_active Expired - Lifetime
-
1998
- 1998-04-09 CN CN98101266A patent/CN1083795C/en not_active Expired - Lifetime
- 1998-05-02 TW TW087106796A patent/TW353644B/en not_active IP Right Cessation
-
1999
- 1999-08-06 HK HK99103405A patent/HK1018429A1/en not_active IP Right Cessation
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0531176A1 (en) * | 1991-09-06 | 1993-03-10 | Unilever Plc | Packaging material |
| JPH0885580A (en) * | 1994-09-14 | 1996-04-02 | Packs:Kk | Packaging container and laminate film therefor |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3942709B2 (en) | 2007-07-11 |
| JPH11139466A (en) | 1999-05-25 |
| CN1217277A (en) | 1999-05-26 |
| HK1018429A1 (en) | 1999-12-24 |
| TW353644B (en) | 1999-03-01 |
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