JP2014227222A - Packaging bag and package - Google Patents
Packaging bag and package Download PDFInfo
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- JP2014227222A JP2014227222A JP2013110840A JP2013110840A JP2014227222A JP 2014227222 A JP2014227222 A JP 2014227222A JP 2013110840 A JP2013110840 A JP 2013110840A JP 2013110840 A JP2013110840 A JP 2013110840A JP 2014227222 A JP2014227222 A JP 2014227222A
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- packaging bag
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- 238000004806 packaging method and process Methods 0.000 title claims abstract description 131
- 238000010438 heat treatment Methods 0.000 claims abstract description 25
- 235000013305 food Nutrition 0.000 claims abstract description 24
- 238000007789 sealing Methods 0.000 claims abstract description 16
- 229920003002 synthetic resin Polymers 0.000 claims abstract description 13
- 239000000057 synthetic resin Substances 0.000 claims abstract description 13
- 238000010030 laminating Methods 0.000 claims abstract description 8
- 238000010411 cooking Methods 0.000 abstract description 14
- 239000011248 coating agent Substances 0.000 abstract description 3
- 238000000576 coating method Methods 0.000 abstract description 2
- 238000007599 discharging Methods 0.000 abstract description 2
- 239000010408 film Substances 0.000 description 63
- 230000000052 comparative effect Effects 0.000 description 36
- 238000009529 body temperature measurement Methods 0.000 description 19
- 238000009835 boiling Methods 0.000 description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 15
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 12
- 230000008018 melting Effects 0.000 description 11
- 238000002844 melting Methods 0.000 description 11
- 239000000565 sealant Substances 0.000 description 11
- 238000000034 method Methods 0.000 description 10
- 239000000463 material Substances 0.000 description 9
- 238000010025 steaming Methods 0.000 description 9
- 238000005259 measurement Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 7
- -1 polyethylene terephthalate Polymers 0.000 description 7
- 239000010409 thin film Substances 0.000 description 7
- 229910002092 carbon dioxide Inorganic materials 0.000 description 6
- 239000001569 carbon dioxide Substances 0.000 description 6
- 230000007246 mechanism Effects 0.000 description 6
- 239000004677 Nylon Substances 0.000 description 5
- 239000004743 Polypropylene Substances 0.000 description 5
- 238000003475 lamination Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 229920001778 nylon Polymers 0.000 description 5
- 229920003023 plastic Polymers 0.000 description 5
- 239000004033 plastic Substances 0.000 description 5
- 239000005020 polyethylene terephthalate Substances 0.000 description 5
- 229920000139 polyethylene terephthalate Polymers 0.000 description 5
- 238000009530 blood pressure measurement Methods 0.000 description 4
- 229920001903 high density polyethylene Polymers 0.000 description 4
- 239000004700 high-density polyethylene Substances 0.000 description 4
- 229920001684 low density polyethylene Polymers 0.000 description 4
- 239000004702 low-density polyethylene Substances 0.000 description 4
- 229920001179 medium density polyethylene Polymers 0.000 description 4
- 239000004701 medium-density polyethylene Substances 0.000 description 4
- 239000004809 Teflon Substances 0.000 description 3
- 229920006362 Teflon® Polymers 0.000 description 3
- 230000009172 bursting Effects 0.000 description 3
- 235000013611 frozen food Nutrition 0.000 description 3
- 235000015097 nutrients Nutrition 0.000 description 3
- 238000012856 packing Methods 0.000 description 3
- 230000000149 penetrating effect Effects 0.000 description 3
- 229920001155 polypropylene Polymers 0.000 description 3
- 238000007639 printing Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 229920010126 Linear Low Density Polyethylene (LLDPE) Polymers 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 230000005856 abnormality Effects 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 239000004615 ingredient Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 235000019583 umami taste Nutrition 0.000 description 2
- 238000007740 vapor deposition Methods 0.000 description 2
- 238000013022 venting Methods 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000004308 accommodation Effects 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000012459 cleaning agent Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000009820 dry lamination Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000012939 laminating adhesive Substances 0.000 description 1
- 229920000092 linear low density polyethylene Polymers 0.000 description 1
- 239000004707 linear low-density polyethylene Substances 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 229940126601 medicinal product Drugs 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 235000019640 taste Nutrition 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 235000013343 vitamin Nutrition 0.000 description 1
- 239000011782 vitamin Substances 0.000 description 1
- 229940088594 vitamin Drugs 0.000 description 1
- 229930003231 vitamin Natural products 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Landscapes
- Package Specialized In Special Use (AREA)
- Bag Frames (AREA)
- Packages (AREA)
Abstract
Description
本発明は,食品を収容して密封し,電子レンジ等でのマイクロ波による誘電加熱によって高温・高圧で調理可能とする他,雑貨,医薬品,工業用途など蒸気抜きの機能を生かした包装袋及び包装体に関する。 The present invention is to contain and seal food, and to enable cooking at high temperature and high pressure by dielectric heating with microwaves in a microwave oven etc. It relates to a package.
以下,本発明の実施形態に従って,食品包装袋を例として説明する。 Hereinafter, a food packaging bag will be described as an example according to an embodiment of the present invention.
包装袋に食品を密封状態に収納した包装体を電子レンジで加熱調理する際,電子レンジ内で発生するマイクロ波による誘電加熱によって食品に含まれる水分が蒸気となり,密封された包装袋内の内圧が上昇するに伴い包装袋が膨張して,ついには破裂し,食品が飛び散る恐れがある。 When a package containing food in a packaging bag is cooked in a microwave oven, the moisture contained in the food becomes steam due to dielectric heating by microwaves generated in the microwave, and the internal pressure in the sealed packaging bag As the bag rises, the packaging bag expands, eventually bursting, and the food may scatter.
このような包装袋の破裂を防ぐために,従来から,加熱前に包装袋を開封したり,包装袋を製造する際に蒸気抜き用の穴や弁などを設けたり,包装袋に圧力負荷部を設け包装袋内部が加圧されたときにその圧力負荷部が自動的に開口する等,加熱により発生した蒸気を包装袋外に放出させる方法又は機構を備えた包装袋及び包装体が提案されている。 In order to prevent such rupture of the packaging bag, conventionally, the packaging bag is opened before heating, a hole for venting or a valve is provided when manufacturing the packaging bag, or a pressure load part is provided on the packaging bag. There has been proposed a packaging bag and a packaging body having a method or mechanism for releasing steam generated by heating to the outside of the packaging bag, such as the pressure load part automatically opening when the inside of the packaging bag is pressurized. Yes.
一例として,特許文献1には,基材層とイージーピール性を有するシーラント層との積層フィルムから製袋される胴部合掌貼りの包装袋について,その開放端縁をヒートシールする際に,一部のヒートシール帯の幅を狭くすることで,電子レンジによる加熱により包装袋内が所定の内圧に達したときに,その幅の狭い一部のヒートシール帯のみが剥離して,包装袋内の蒸気を放出する機構を備えた包装袋及び包装体が提案されている。 As an example, Japanese Patent Application Laid-Open No. H10-260260 discloses a case where a heat-sealing of the open end edge of a packaging bag with a body portion and a palm portion formed from a laminated film of a base material layer and an easy peel sealant layer is performed. By narrowing the width of the heat seal band at the part, when the inside of the packaging bag reaches a predetermined internal pressure by heating with a microwave oven, only a part of the narrow heat seal band is peeled off, A packaging bag and a packaging body having a mechanism for releasing the above-mentioned vapor have been proposed.
また,特許文献2には,第1フィルム51(基材フィルム51a/シーラント層51b)と第2フィルム52(基材フィルム52a/シーラント層52b/シーラント層52c)とをヒートシールすることにより製造される包装袋であって,図25に示すように,第2フィルム52の基材フィルム52a/シーラント層52bの層構成の部分のみを貫通する,厚み方向に打ち抜きによる小さな開口53を設け,電子レンジによる加熱により,水蒸気が発生して内圧が上昇していき,一定の圧力及び温度にまで達すると,第2フィルム52の開口53の個所のシーラント層52cが袋の外側に膨れてからポンと破れて包装袋内の蒸気を放出する機構を備えた包装袋及び包装体が提案されている。 Patent Document 2 is manufactured by heat-sealing the first film 51 (base film 51a / sealant layer 51b) and the second film 52 (base film 52a / sealant layer 52b / sealant layer 52c). 25, as shown in FIG. 25, a small opening 53 is formed by punching in the thickness direction, penetrating only the portion of the base film 52a / sealant layer 52b of the second film 52, and a microwave oven. Due to the heating by the water vapor, the internal pressure rises due to the generation of water vapor, and when the pressure reaches a certain pressure and temperature, the sealant layer 52c at the location of the opening 53 of the second film 52 swells outside the bag and tears. A packaging bag and a packaging body having a mechanism for releasing steam in the packaging bag have been proposed.
しかしながら,従来の包装袋では,所定の内圧に達したときに包装袋の一部が開口し,包装袋内の蒸気を放出させることで,膨張した包装袋が破裂して食品が飛び散ることを防止できるが,開口した後は急激に蒸気が放出されるため,必要以上に内圧低下及び温度低下を招くことになり,包装袋の開口後は,所望の高圧調理及び高温調理をすることができなかった。 However, in the conventional packaging bag, when the specified internal pressure is reached, a part of the packaging bag is opened, and the steam in the packaging bag is released to prevent the expanded packaging bag from bursting and the food from splashing. However, since the steam is suddenly released after opening, the internal pressure and temperature are reduced more than necessary, and the desired high-pressure cooking and high-temperature cooking cannot be performed after opening the packaging bag. It was.
また,蒸らしを必要とする食品を収容する場合,包装袋の開口により直ちに蒸気が放出されてしまい,蒸気が包装袋内に滞留しないため,蒸気による加熱蒸らし効果が低減する。 In addition, when food that requires steaming is stored, steam is immediately released through the opening of the packaging bag, and the steam does not stay in the packaging bag, so the steaming effect of steam is reduced.
また,近年においては,蒸籠や補水を必要とする商品を包装袋に収容したまま電子レンジで加熱調理することで,タジン鍋のように,蒸気が充満し,包装袋表面に付着した水蒸気が再び底面に戻ることで,素材の水分のみで調理可能となり,素材の持つ旨味や栄養分をそのまま味わえるようにすることができる包装袋が望まれている。 In recent years, products that require steaming or rehydration are cooked in a microwave oven while being contained in a packaging bag, so that the steam fills up like a tagine pan and the water vapor attached to the surface of the packaging bag again. There is a demand for a packaging bag that can be cooked only with the moisture of the material by returning to the bottom surface, and that allows the umami and nutrients of the material to be enjoyed as they are.
また,生の冷凍食材を収容した包装袋を電子レンジで加熱した場合,マイクロ波は凍った部分には効果が少なく,素材の中心に熱が通り難い。そこで,高温・高圧調理によって加熱ムラを最小限に抑えることができ,一度しか熱を通していない,できたて食感のある商品開発が可能となる包装袋が望まれている。 In addition, when a packaging bag containing raw frozen foods is heated in a microwave oven, the microwave is less effective in the frozen part, and it is difficult for heat to pass through the center of the material. Therefore, there is a demand for a packaging bag that can minimize heating unevenness by high-temperature and high-pressure cooking, and can develop a product with a fresh texture that only passes heat once.
そこで,本発明の目的は,内圧の上昇による包装袋の膨張により,適宜間隔で複数の微細の開孔を徐々に形成して少しずつ蒸気を放出させることで,包装袋内の温度及び圧力を高く維持して高圧調理及び高温調理をすることができる上,蒸らしを必要とする食品に対しても充分な蒸らし効果を発揮する包装袋及び包装体を提供するものである。 Accordingly, an object of the present invention is to gradually increase the temperature and pressure in the packaging bag by gradually forming a plurality of fine openings at appropriate intervals and releasing steam gradually by expansion of the packaging bag due to an increase in internal pressure. The present invention provides a packaging bag and a package that can maintain high and perform high-pressure cooking and high-temperature cooking, and also exhibit a sufficient steaming effect even for foods that require steaming.
上記目的を達成するために本発明の包装袋1及び包装体10は,合成樹脂フィルムから成る内層2及び外層3の少なくとも2層をラミネートして積層し,食品を収納して密封する包装体10であって,
少なくとも前記外層3にスリット7を形成(7b)すると共に,前記スリット7を被覆する適宜幅で,前記両層をヒートシールしてヒートシール部6を形成し,マイクロ波の誘電加熱による内圧上昇により,前記スリット部の内層2が適宜間隔で開孔8を形成するよう,前記ヒートシール部の少なくとも前記内層2の表面で前記スリット7に対峙して凹凸条41が形成されて成ることを特徴とする(請求項1)。
In order to achieve the above object, the packaging bag 1 and the packaging body 10 of the present invention comprise a packaging body 10 for laminating and laminating at least two layers of an inner layer 2 and an outer layer 3 made of a synthetic resin film, and containing and sealing food. Because
At least the slit 7 is formed (7b) in the outer layer 3, and the heat seal part 6 is formed by heat-sealing the two layers with an appropriate width to cover the slit 7, and the internal pressure is increased by dielectric heating of microwaves. The ridges 41 are formed opposite to the slits 7 on at least the surface of the inner layer 2 of the heat seal portion so that the inner layers 2 of the slit portions form the openings 8 at appropriate intervals. (Claim 1).
MD方向又はTD方向のいずれかを長手方向とするスリット7を前記内外両層2,3に形成(7a,7b)すると共に,前記内層2の前記スリット7aを溶融接着したものとしてもよい(請求項2)。 The slit 7 having either the MD direction or the TD direction as the longitudinal direction is formed in the inner and outer layers 2 and 3 (7a, 7b), and the slit 7a of the inner layer 2 may be melt bonded. Item 2).
また,前記外層3が二軸延伸フィルムから成り,前記内層2が無延伸フィルムであることが好ましい(請求項3)。 Moreover, it is preferable that the said outer layer 3 consists of a biaxially stretched film, and the said inner layer 2 is a non-stretched film (Claim 3).
また,前記内外層の表面に凹凸条41の表面を有するヒートシールカバーを介して,ヒートシールし,前記ヒートシール部6に前記凹凸条41が転写されて成るものとしても良い(請求項4)。 Further, heat sealing may be performed via a heat seal cover having the surface of the ridges 41 on the inner and outer layers, and the ridges 41 may be transferred to the heat seal portion 6 (claim 4). .
前記ヒートシール部6は,前記スリット7の長手方向両端に3〜7mmの間隔を有する面積を有することが好ましい(請求項5)。 The heat seal portion 6 preferably has an area having a spacing of 3 to 7 mm at both ends in the longitudinal direction of the slit 7 (Claim 5).
前記開孔8は,前記マイクロ波の誘電加熱による内圧上昇により,前記内層が前記スリット7の直交方向に適宜間隔を介して,前記スリット7の幅方向に開口するように形成することができる(請求項6)。 The opening 8 can be formed so that the inner layer opens in the width direction of the slit 7 through an appropriate interval in the direction orthogonal to the slit 7 due to an increase in internal pressure due to dielectric heating of the microwave ( Claim 6).
以上説明した構成により,本発明の包装袋1及び包装体10は以下の顕著な効果を得ることができた。 With the configuration described above, the packaging bag 1 and the packaging body 10 of the present invention can obtain the following remarkable effects.
本発明の包装袋1に食品を収容して,電子レンジ等のマイクロ波で誘電加熱すると,包装袋1内の温度の上昇と共に,食品から水分が蒸発して内圧が増加し,これにより包装袋1が膨張し始め,前記外層3のスリット7が拡がり,また,前記ヒートシール部6の前記内層2の凹凸条41のうち,凹条部が伸ばされることにより略長円状の薄膜部42となって,さらに内圧が増加することでこの伸びきった前記略長円状の薄膜部42から徐々に開孔していくことで,包装袋1の内圧を維持しながら蒸気を少しずつ抜くことができた。 When food is stored in the packaging bag 1 of the present invention and dielectric heating is performed by microwaves such as a microwave oven, as the temperature in the packaging bag 1 rises, moisture evaporates from the food and the internal pressure increases, thereby the packaging bag. 1 starts to expand, the slit 7 of the outer layer 3 expands, and, among the concavo-convex ridges 41 of the inner layer 2 of the heat seal portion 6, the concave ridges are stretched to form a substantially oval thin film portion 42 and As the internal pressure further increases, the steam is gradually removed while maintaining the internal pressure of the packaging bag 1 by gradually opening the elongated oval thin film portion 42 as the internal pressure increases. did it.
このため,本発明の包装袋1を使用することで,包装袋1は破裂せずに,電子レンジ等で所望の高温・高圧調理をすることができた。 For this reason, by using the packaging bag 1 of the present invention, the packaging bag 1 could be cooked at a desired high temperature and pressure in a microwave oven or the like without rupturing.
また,前記開孔8は適宜間隔で発生し,また,徐々に拡がって微細なピンホール9を形成するため,前記ピンホール9形成の際に音が発生しない。 Further, the openings 8 are generated at appropriate intervals, and are gradually expanded to form fine pinholes 9, so that no sound is generated when the pinholes 9 are formed.
また,包装袋1に収容された食品の蒸気発生量に応じて前記開孔8の発生数が変動するため,包装袋1の破裂を防ぐための必要最小限の蒸気を抜くことができ,包装袋1には多量の蒸気が滞留させることができ,充分な加熱蒸らし効果を発揮することができた。 In addition, since the number of the holes 8 generated varies depending on the amount of steam generated in the food contained in the packaging bag 1, the minimum necessary steam for preventing the packaging bag 1 from bursting can be extracted. A large amount of steam could be retained in the bag 1, and a sufficient steaming effect could be exhibited.
加圧,加熱調理終了後は,内層2の収縮とともに前記ピンホール9が収縮するため,包装袋1の内面に付着した水滴等は,前記ピンホール9との間で表面張力が働き,前記ピンホール9から液漏れ等が発生し難い。 After the pressurization and cooking, the pinhole 9 contracts as the inner layer 2 contracts, so that water drops attached to the inner surface of the packaging bag 1 exert surface tension between the pinhole 9 and the pin. Liquid leakage or the like hardly occurs from the hole 9.
次に,本発明の実施形態を,添付図面を参照しながら詳細に説明する。 Next, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
本発明の包装袋1又はその内部に食品を収容した包装体10は,後述する図1及び図2に示すように,合成樹脂フィルムから成る内層2及び外層3のここでは2層から成るフィルムを積層し,後述のスリット部5を形成した積層フィルム4から製袋される。 As shown in FIGS. 1 and 2, which will be described later, a packaging body 10 containing food in the packaging bag 1 of the present invention is composed of an inner layer 2 made of a synthetic resin film and an outer layer 3 in this case. A bag is made from the laminated film 4 which is laminated and formed with a slit portion 5 which will be described later.
〔外層〕
前記外層3には,耐熱性,気密性を有する合成樹脂フィルムを使用することが好ましく,そのような合成樹脂として,例えば,ナイロン(NY),ポリエチレンテレフタレート(PET)等が挙げられる。
[Outer layer]
For the outer layer 3, it is preferable to use a synthetic resin film having heat resistance and airtightness. Examples of such a synthetic resin include nylon (NY) and polyethylene terephthalate (PET).
また,応力強化のために一軸延伸又は二軸延伸したフィルムが好ましく,例えば,二軸延伸ナイロン(ONY),二軸延伸ポリエチレンテレフタレート(OPET),二軸延伸ポリプロピレン(OPP)等といった二軸延伸フィルム全般が好適である。 Also, a uniaxially stretched or biaxially stretched film is preferable for stress strengthening, for example, a biaxially stretched film such as biaxially stretched nylon (ONY), biaxially stretched polyethylene terephthalate (OPET), biaxially stretched polypropylene (OPP), or the like. Overall is preferred.
また,上述した二軸延伸フィルムに,シリカ蒸着,アルミナ蒸着,バリアコート剤の塗工等のように,バリア加工を施して使用しても良い。 Further, the above-described biaxially stretched film may be used after being subjected to a barrier process such as silica vapor deposition, alumina vapor deposition, and coating of a barrier coating agent.
〔内層〕
前記内層2には,ヒートシール機能を有する,つまり熱融着性を有する合成樹脂フィルムが使用され,本発明ではオレフィン系無延伸フィルムが好適である。この熱融着性を有する合成樹脂として,直鎖状低密度ポリエチレン(LLDPE),低密度ポリエチレン(LDPE),中密度ポリエチレン(MDPE),高密度ポリエチレン(HDPE)などのポリエチレン,未延伸ポリプロピレン(CPP)等が挙げられる。
[Inner layer]
For the inner layer 2, a synthetic resin film having a heat sealing function, that is, having a heat-sealing property is used. In the present invention, an olefin-based unstretched film is suitable. Synthetic resins having this heat-fusibility include linear low density polyethylene (LLDPE), low density polyethylene (LDPE), medium density polyethylene (MDPE), high density polyethylene (HDPE), and other unstretched polypropylene (CPP). ) And the like.
また,内層2に使用される合成樹脂フィルムは,応力により伸長しやすいフィルムであることが好ましく,例えば未延伸フィルムであることが好ましいが,これに限定されない。 Further, the synthetic resin film used for the inner layer 2 is preferably a film that is easily stretched by stress, for example, an unstretched film, but is not limited thereto.
〔内層と外層の融点〕
また,本発明では,前記内層2に使用される合成樹脂フィルムは,後述するように内層2を熱融着させる際に,外層3が融着しないように,前記外層3の融点より低い融点を有するものが使用される。特に,外層3と内層2の融点差が50℃以上離れていると,加工する上で好適である。
[Melting point of inner layer and outer layer]
In the present invention, the synthetic resin film used for the inner layer 2 has a melting point lower than the melting point of the outer layer 3 so that the outer layer 3 is not fused when the inner layer 2 is heat-sealed as will be described later. What you have is used. In particular, when the difference in melting point between the outer layer 3 and the inner layer 2 is 50 ° C. or more, it is suitable for processing.
本発明における好適な例として,外層3に使用される合成樹脂フィルムの材料として,215〜225℃の融点を有する二軸延伸ナイロン(ONY),又は265℃の融点を有するポリエチレンテレフタレート(PET)を使用する場合は,内層2に使用される合成樹脂フィルムの材料として,105〜115℃の融点を有する低密度ポリエチレン(LDPE),110〜130℃の融点を有する中密度ポリエチレン(MDPE),125〜130℃の融点を有する直鎖状低密度ポリエチレン(LLDPE),135〜150℃の融点を有する高密度ポリエチレン(HDPE),135〜165℃の融点を有する無延伸ポリプロピレン(CPP)が選択される。 As a suitable example in the present invention, biaxially stretched nylon (ONY) having a melting point of 215 to 225 ° C. or polyethylene terephthalate (PET) having a melting point of 265 ° C. is used as a material for the synthetic resin film used for the outer layer 3. When used, the material of the synthetic resin film used for the inner layer 2 is low density polyethylene (LDPE) having a melting point of 105 to 115 ° C, medium density polyethylene (MDPE) having a melting point of 110 to 130 ° C, 125 Linear low density polyethylene (LLDPE) having a melting point of 130 ° C., high density polyethylene (HDPE) having a melting point of 135 to 150 ° C., and unstretched polypropylene (CPP) having a melting point of 135 to 165 ° C. are selected.
〔積層〕
前記内層2と前記外層3との積層には,例えば,ドライラミネート,押出しラミネート,共押出などの方法を使用することが可能である。
(Lamination)
For the lamination of the inner layer 2 and the outer layer 3, it is possible to use methods such as dry lamination, extrusion lamination, and coextrusion.
〔スリット部〕
後述の図1に示すように,本発明の包装袋1及び包装体10は,加熱による包装袋1の内圧の上昇により前記内層2に形成した前記スリットに対峙する後述凹凸条が前記スリット7の直交方向に適宜間隔で,開孔して蒸気を開放するスリット部5を有する。なお,このスリット部5は複数設けても良いが,製袋する際の周縁のヒートシール上には形成しない。
[Slit part]
As shown in FIG. 1 to be described later, the packaging bag 1 and the packaging body 10 of the present invention have an uneven strip which is opposed to the slit formed in the inner layer 2 due to an increase in the internal pressure of the packaging bag 1 by heating. There are slit portions 5 that are opened at appropriate intervals in the orthogonal direction to release the vapor. A plurality of slit portions 5 may be provided, but they are not formed on the heat seal at the periphery when bags are made.
図1に示すように,スリット部5は,外層3のみに形成されたスリット7と,このスリット7の周縁を囲む方形のヒートシール部6とからなり,また,このヒートシール部6には凹凸条41が形成されている。 As shown in FIG. 1, the slit portion 5 includes a slit 7 formed only in the outer layer 3 and a rectangular heat seal portion 6 surrounding the periphery of the slit 7. Article 41 is formed.
このスリット部5の形成方法は,本実施形態においては,図3に示すように,製袋する前の内層2と外層3とを積層した積層フィルム4に,前記内層2及び前記外層3を貫通するようにスリット刃11で,MD(シート巻き取り)方向を長手方向としてスリット7を形成し,次に,図4に示すように,前記スリット7を含むスリット周縁を前記積層フィルム4の表裏両面から凹凸状の表面を有するヒートシールバー12a,12bで挟み,前記内層2は溶融するが外層3が溶融しない程度の温度でヒートシールして,前記内層2のスリット7のみを熱融着により塞ぎ,スリット7を被覆する適宜幅のヒートシール部6を形成する。なお,前記ヒートシールバー12a,12bによるヒートシールは,正面視においてスリット7がヒートシール部6の中央に位置するように行うことが好ましい。 In this embodiment, as shown in FIG. 3, the slit portion 5 is formed by penetrating the inner layer 2 and the outer layer 3 in a laminated film 4 in which the inner layer 2 and the outer layer 3 before bag making are laminated. As shown in FIG. 4, the slit 7 is formed with the MD (sheet winding) direction as the longitudinal direction by the slit blade 11, and then the slit periphery including the slit 7 is formed on both the front and back surfaces of the laminated film 4 as shown in FIG. Is sandwiched between heat seal bars 12a and 12b having an uneven surface, the inner layer 2 is melted but the outer layer 3 is heat sealed at a temperature that does not melt, and only the slits 7 of the inner layer 2 are closed by thermal fusion. The heat seal portion 6 having an appropriate width for covering the slit 7 is formed. The heat sealing by the heat sealing bars 12a and 12b is preferably performed so that the slit 7 is located at the center of the heat sealing portion 6 when viewed from the front.
また,前記ヒートシールバー12a,12bには,前記積層フィルム4との接触面に凹凸条が形成されているため(図示せず),前記積層フィルム4の前記ヒートシール部6に凹凸条41が転写されるが,少なくとも内層2に凹凸条を転写する。なお,前記ヒートシールバー12a,12bの前記積層フィルム4との接触面に,凹凸条の表面を有するヒートシールカバーで覆って,前記積層フィルム4の少なくとも内層2に凹凸条41を転写しても良い。前記ヒートシールカバーは,凹凸条が付されたテフロン(登録商標)製のシートを使用することが好ましい。 In addition, since the heat seal bars 12a and 12b are provided with uneven stripes on the contact surface with the laminated film 4 (not shown), the irregular stripes 41 are provided on the heat seal portion 6 of the laminated film 4. Although it is transferred, at least the ridges are transferred to the inner layer 2. Note that the heat seal bars 12a and 12b may be covered with a heat seal cover having a surface of an uneven stripe on the contact surface with the laminated film 4 so that the uneven stripe 41 is transferred to at least the inner layer 2 of the laminated film 4. good. As the heat seal cover, it is preferable to use a sheet made of Teflon (registered trademark) provided with uneven grooves.
また,スリット部5の他の形成方法としては,製袋する前の内層2と外層3とを積層した積層フィルム4に,炭酸ガスレーザーを照射して,外層3にのみスリット7を形成した後,このスリット7を含むスリット周縁を前記積層フィルム4の表裏両面から凹凸状の表面を有するヒートシールバー12a,12bで挟み,前記スリット7を被覆する適宜幅のヒートシール部6を形成する方法がある。 Another method for forming the slit portion 5 is to irradiate a carbon dioxide laser on the laminated film 4 in which the inner layer 2 and the outer layer 3 are laminated before forming the bag to form the slit 7 only in the outer layer 3. The slit periphery including the slit 7 is sandwiched between the front and back surfaces of the laminated film 4 by heat seal bars 12a and 12b having uneven surfaces, and a heat seal portion 6 having an appropriate width for covering the slit 7 is formed. is there.
上述の炭酸ガスレーザーの照射により,外層3にのみスリット7を形成する加工メカニズムは,外層3にナイロン等の炭酸ガスレーザーの吸収性の強いフィルムを使用し,内層2にポリエチレン等の炭酸ガスレーザーの吸収性の弱いフィルムを使用し,この外層3と内層2を積層した積層フィルム4に炭酸ガスレーザーを照射しつつ,このレーザー又は積層フィルム4を直線方向に移動させると,吸収性の強い外層3のみが溶融して蒸発し直線状のスリット7が形成されるが,吸収性の弱い内層2は炭酸ガスレーザーが吸収しないため溶融せずスリット7が形成されない。 The processing mechanism for forming the slit 7 only in the outer layer 3 by irradiation with the carbon dioxide laser described above uses a film having a strong absorption of carbon dioxide laser such as nylon for the outer layer 3 and a carbon dioxide laser such as polyethylene for the inner layer 2. When the film or the laminated film 4 is moved in a linear direction while irradiating a carbon dioxide laser on the laminated film 4 in which the outer layer 3 and the inner layer 2 are laminated, the outer layer having a strong absorptivity is used. Only 3 melts and evaporates to form a linear slit 7, but the inner layer 2 having a low absorption is not melted by the carbon dioxide laser, so that the slit 7 is not formed.
さらに,スリット部5の他の形成方法としては,前記内層2と前記外層3とを積層する前に,外層3にのみスリット刃11等でスリット7を形成し,その後,内層2とラミネートして積層フィルム4とし,前記スリット7を含むスリット周縁を前記積層フィルム4の表裏両面から凹凸状の表面を有するヒートシールバー12a,12bで挟み,前記スリット7を被覆する適宜幅のヒートシール部6を形成する方法がある。 Further, as another method of forming the slit portion 5, before the inner layer 2 and the outer layer 3 are laminated, the slit 7 is formed only on the outer layer 3 with a slit blade 11 or the like, and then the inner layer 2 is laminated. A laminated film 4 is formed, and the periphery of the slit including the slit 7 is sandwiched between heat seal bars 12a and 12b having uneven surfaces from both the front and back surfaces of the laminated film 4, and a heat seal portion 6 having an appropriate width for covering the slit 7 is provided. There is a method of forming.
なお,前記内層2と前記外層3とをラミネートする際に,後述する内層2に開孔8が発生する部分とその他の部分とでラミネート強度に差をつけることが好ましい。 When laminating the inner layer 2 and the outer layer 3, it is preferable to make a difference in laminate strength between a portion where an opening 8 is generated in the inner layer 2 described later and another portion.
なお,上述のスリット7はMD方向を長手方向として形成されているが,TD方向を長手方向としてスリット7を形成しても良い。 Although the above-described slit 7 is formed with the MD direction as the longitudinal direction, the slit 7 may be formed with the TD direction as the longitudinal direction.
前記スリット7の長さは,マイクロ波による加熱調理時における包装袋に収容された食品から発生する蒸気圧に合わせて調整することが可能であり,例えば,比較的小さいサイズの包装袋や蒸気の抜けやすさを求める場合はスリット7を伸ばすことができるが,好ましくは5〜200mm,より好ましくは,30〜70mmである。 The length of the slit 7 can be adjusted in accordance with the vapor pressure generated from the food contained in the packaging bag during cooking by microwave, for example, a relatively small size packaging bag or steam. In order to determine the ease of removal, the slit 7 can be extended, but it is preferably 5 to 200 mm, more preferably 30 to 70 mm.
前記ヒートシール部6の大きさは,前記スリット7を被覆する適宜面積を有していれば特に限定されないが,スリット7の長手方向両端に3〜7mmの間隔を有するものが好適である。また,ヒートシール部6の形状は方形が好ましいが,特に限定されない。 The size of the heat seal portion 6 is not particularly limited as long as the heat seal portion 6 has an appropriate area for covering the slit 7, but one having an interval of 3 to 7 mm at both longitudinal ends of the slit 7 is preferable. Moreover, although the shape of the heat seal part 6 is preferably a square, it is not particularly limited.
〔スリット部の作用〕
次に,本発明の包装袋1に食品を収容して電子レンジ等のマイクロ波による誘電加熱した場合における前記MD方向に形成したスリット部7の作用を示す図5(a)〜(d)及び図6(a)〜(c)を参照して説明する。
[Operation of slit part]
Next, FIGS. 5 (a) to 5 (d) showing the action of the slit portion 7 formed in the MD direction when food is contained in the packaging bag 1 of the present invention and dielectric heating is performed by microwaves such as a microwave oven. This will be described with reference to FIGS.
図5(a)及び図6(a)に示すように,スリット7が閉じている状態の前記スリット部5を有する本発明の包装袋1に,食品を収容して加熱すると,包装袋1内の温度の上昇と共に,食品から水分が蒸発し内圧が増加していき,図5(b)に示すように,包装袋1が膨張し始める。そして,温度がさらに上昇することにより発生する蒸気量も増加し,外層3のスリット7がスリットの直交方向,ここでは,TD方向に拡がり,また,内層2の凹凸条41のうち凹条がTD方向に伸ばされることにより,後述する図24に示すように,略長円状の薄膜部42が発生し,内圧のさらなる増加により,この伸びきった前記略長円状の薄膜部42から開孔8が発生し,これが拡がることで,図6(b)及び図5(c)に示すように,微細なピンホール9が形成される。 As shown in FIGS. 5 (a) and 6 (a), when food is contained and heated in the packaging bag 1 of the present invention having the slit portion 5 with the slit 7 closed, the inside of the packaging bag 1 As the temperature rises, moisture evaporates from the food and the internal pressure increases, and the packaging bag 1 begins to expand as shown in FIG. Further, the amount of steam generated as the temperature rises also increases, the slit 7 of the outer layer 3 expands in the direction perpendicular to the slit, here, the TD direction, and the concave stripe of the concave / convex stripe 41 of the inner layer 2 is TD. By extending in the direction, as shown in FIG. 24 to be described later, a substantially oval thin film portion 42 is generated. By further increasing the internal pressure, an opening is formed from the elongated oval thin film portion 42. 8 is generated and expanded to form fine pinholes 9 as shown in FIGS. 6B and 5C.
前記開孔8は適宜間隔で発生し,また,徐々に拡がっていくものであるため,包装袋1の内圧を維持しながら蒸気を抜くことができ,さらに,前記ピンホール9の形成の際に音が発生しない。 Since the openings 8 are generated at appropriate intervals and gradually expand, steam can be extracted while maintaining the internal pressure of the packaging bag 1, and further, when the pinhole 9 is formed, There is no sound.
また,一つ一つの前記ピンホール9の大きさは微小であり,また,包装袋1に収容された食品の蒸気発生量に応じて前記開孔8の発生数が変動するため,包装袋1の破裂を防ぐための必要最小限の蒸気が放出される。 In addition, the size of each pinhole 9 is very small, and the number of holes 8 generated varies depending on the amount of steam generated in the food contained in the packaging bag 1. The minimum amount of steam required to prevent the explosion is released.
加熱調理終了後は,図5(d)及び図6(c)に示すように,内層2の収縮とともに前記ピンホール9が小さくなるため,包装袋1の内面に付着した水滴等は,前記ピンホール9との間で表面張力が働き,前記ピンホール9から液漏れ等は発生し難い。 After the cooking, as shown in FIGS. 5 (d) and 6 (c), the pinhole 9 becomes smaller as the inner layer 2 contracts, so that water droplets or the like adhering to the inner surface of the packaging bag 1 Surface tension works with the hole 9, and liquid leakage or the like hardly occurs from the pinhole 9.
なお,上述した実施形態では,スリット7をMD方向に設けているが,これに限定されず,実施に応じて,MD又はTD方向に所定の角度で,すなわち,斜めにスリットを形成することができる。この場合上述した作用についても同様に適応できる。 In the above-described embodiment, the slit 7 is provided in the MD direction. However, the present invention is not limited to this, and the slit may be formed at a predetermined angle in the MD or TD direction, that is, obliquely, depending on the implementation. it can. In this case, the above-described operation can be similarly applied.
〔包装袋,包装体〕
先にも述べたとおり,図1及び,図2に示すように,本発明の包装袋1又はその内部に食品を収容した包装体10は,合成樹脂フィルムから成る前記内層2及び前記外層3をラミネートして積層し,前記スリット部5が形成された積層フィルム4から製袋される。なお,本発明の包装袋1の形状は,特に限定されず,3方平袋,合掌平袋,スタンディングパウチ等が挙げられる。
[Packaging bags and packages]
As described above, as shown in FIG. 1 and FIG. 2, the packaging bag 1 according to the present invention or the package 10 containing the food therein has the inner layer 2 and the outer layer 3 made of a synthetic resin film. Lamination and lamination are performed to form a bag from the laminated film 4 on which the slit portion 5 is formed. In addition, the shape of the packaging bag 1 of the present invention is not particularly limited, and examples thereof include a three-way flat bag, a gas palm flat bag, and a standing pouch.
また、包装袋1内への食品の収容は、製袋時に行ってもよく、製袋後に行ってもよい。 Moreover, accommodation of the foodstuff in the packaging bag 1 may be performed at the time of bag making, and may be performed after bag making.
〔製造〕
本発明の包装袋1の製造方法は特に限定されないが,一例としては,あらかじめ所定の印刷を施した外層3と,内層2とをドライラミネートして長尺帯状の積層フィルム4を製造し,そして,この積層フィルム4に,本実施形態では,スリット刃11でMD方向にスリット7を形成し,このスリット7の周縁をヒートシールすることで上述のスリット部5を形成し,このスリット部5が形成された積層フィルム4をピンホールテスター21にかけて,内層2のスリットの熱融着状態をチェックした後,ロール状に巻装する。そして,図7に示すように,このロール状に巻装された積層フィルム4を一定長さ毎に繰り出しながら,製袋機等で所定の形状の包装袋1に製袋する方法がある。
[Manufacturing]
Although the manufacturing method of the packaging bag 1 of this invention is not specifically limited, As an example, the outer layer 3 which gave predetermined printing beforehand, and the inner layer 2 are dry-laminated, and the elongate strip | belt-shaped laminated film 4 is manufactured, and In this embodiment, a slit 7 is formed in the MD direction with the slit blade 11 in the laminated film 4, and the slit portion 5 is formed by heat-sealing the periphery of the slit 7. The formed laminated film 4 is put on a pinhole tester 21 to check the heat-sealed state of the slit of the inner layer 2 and then wound into a roll. And as shown in FIG. 7, there exists the method of bag-making into the packaging bag 1 of a predetermined shape with a bag making machine etc., paying out the laminated film 4 wound by roll shape for every fixed length.
上記ピンホールテスター21は,図8,図9に示すように,ピンホールテスター21とアース線22の間に積層フィルム4を挿入し,ピンホールテスター21からアース線22に向けて,積層フィルム4を破壊せず空気の絶縁だけを破壊する程度の電圧で放電24を行うものである。ここで,上述したヒートシールバー12a,12bによる内層2のスリット7の熱融着が充分でなく,内層2にスリット7bに連通して形成された通孔17(7a)が残存する場合は,図9に示すように,放電24が起きて電流が流れ,放電24を検知した付属の表示器23が異常を知らせる。一方,内層2に前記通孔17(7a)が存在しない場合は,図8に示すように,放電24が起きないため電流が流れず,付属の表示器23は検知しない。 As shown in FIGS. 8 and 9, the pinhole tester 21 has the laminated film 4 inserted between the pinhole tester 21 and the ground wire 22 and directed from the pinhole tester 21 toward the ground wire 22. The discharge 24 is performed at a voltage that does not destroy the air but only the air insulation. Here, when the heat seal of the slit 7 of the inner layer 2 by the heat seal bars 12a and 12b described above is not sufficient and the through hole 17 (7a) formed in the inner layer 2 in communication with the slit 7b remains, As shown in FIG. 9, a discharge 24 occurs and a current flows, and an attached display 23 that detects the discharge 24 notifies the abnormality. On the other hand, when the through-hole 17 (7a) does not exist in the inner layer 2, as shown in FIG. 8, since the discharge 24 does not occur, no current flows and the attached display 23 does not detect.
次に実施例を挙げて,本発明をさらに詳細に説明する。 Next, the present invention will be described in more detail with reference to examples.
図1は,本発明の包装袋1の一実施例を示した概略正面図である。図2は,図1の包装袋1を構成する積層フィルム4の層構成を示した拡大図である。 FIG. 1 is a schematic front view showing an embodiment of a packaging bag 1 of the present invention. FIG. 2 is an enlarged view showing the layer structure of the laminated film 4 constituting the packaging bag 1 of FIG.
この包装袋1は,厚み50μmのLLDPEフィルムを使用した内層2と,厚み25μmのONYを使用した外層3とをドライラミネートして積層フィルム4を得た後,この積層フィルム4に,スリット刃11によりMD方向に,内層2及び外層3を貫通するようにスリット7を形成しこのスリット7を含む周縁を表裏両面から,凹凸条の表面を有するテフロンシートで覆われたヒートシールバー12a,12bで挟み,前記内層2は溶融するが外層3が溶融しない程度の温度でヒートシールをし,前記内層2に形成されたスリット7のみを塞ぎ,また前記内層2に,テフロン製の前記ヒートシールカバーの凹凸条41を転写して,スリット部5を形成した後,巻装する。そして,図7に示すように,このスリット部5が形成された積層フィルム4を巻装したものを,一定長さ繰り出した後カットし,前記スリット部5を有する積層フィルム4を外層3が外側になるように折り曲げ(図7の破線を山折り),その折り曲げ部分の1辺と,この折り曲げ部分の両端から垂直方向にのびる2辺との3辺をヒートシールして3方平袋に形成したものである。 The packaging bag 1 is obtained by dry laminating an inner layer 2 using an LLDPE film having a thickness of 50 μm and an outer layer 3 using an ONY having a thickness of 25 μm to obtain a laminated film 4. In the MD direction, a slit 7 is formed so as to penetrate the inner layer 2 and the outer layer 3, and the peripheral edge including the slit 7 is covered with a Teflon sheet having a rugged surface from both the front and back surfaces. The inner layer 2 is melted but heat sealed at a temperature at which the outer layer 3 is not melted, only the slit 7 formed in the inner layer 2 is closed, and the inner layer 2 is covered with the heat seal cover made of Teflon. After the ridges 41 are transferred and the slit portions 5 are formed, they are wound. And as shown in FIG. 7, what wound this laminated film 4 in which the slit part 5 was formed is cut after extending | stretching fixed length, and the outer layer 3 is outside on the laminated film 4 which has the said slit part 5 (The broken line in FIG. 7 is folded in a mountain) and one side of the bent portion and two sides extending vertically from both ends of the bent portion are heat sealed to form a three-sided flat bag. It is a thing.
上述のように形成される3方平袋について,サイズ(横×縦)が150×160mmの包装袋を実施例1とし,同様にサイズが135×220mmの縦に長い長方形タイプの包装袋を実施例2とし,サイズが200×210mmの大きめの包装袋を実施例3とし,後述する温度測定,圧力測定を行った。 For the three-sided flat bag formed as described above, a packaging bag having a size (width × length) of 150 × 160 mm is taken as Example 1, and similarly, a vertically long rectangular bag having a size of 135 × 220 mm is implemented. In Example 2, a large packaging bag having a size of 200 × 210 mm was set as Example 3, and temperature measurement and pressure measurement described later were performed.
比較例1
比較例として,包装袋を使用せず,容器に水を入れたもの(大気中下)を比較例1とした。
Comparative Example 1
As a comparative example, a packaging bag was not used and water was put in a container (in the atmosphere) as Comparative Example 1.
比較例2
また,層構成をONY♯15/印刷/接着剤/セミレトルト用CPP♯60とした積層フィルムから成る,サイズが130×245mmの平袋タイプの包装袋であって,一部のシール部をイージーピールシーラントを挟むことで他のシール部よりも弱いシール強度とし,電子レンジ等の加熱により包装袋内が所定の内圧に達したときに,前記イージーピールシーラントを有する一部のシール部がシール後退して開口(剥離)し,包装袋内の蒸気を放出する機構を備えた包装袋を比較例2とした。 なお,前記開口面積は約30mm2である。
Comparative Example 2
Also, it is a flat bag type packaging bag with a size of 130 x 245 mm made of laminated film with layer structure of ONY # 15 / printing / adhesive / semi-retort CPP # 60. The seal strength is weaker than other seals by sandwiching the peel sealant, and when the inside of the packaging bag reaches a predetermined internal pressure due to heating by a microwave oven or the like, some of the seals with the easy peel sealant move backward. Then, a packaging bag having a mechanism for opening (peeling) and releasing the vapor in the packaging bag was designated as Comparative Example 2. The opening area is about 30 mm 2 .
比較例3
また,層構成をONY♯15/印刷/接着剤/LLD♯30/LLD♯15とした積層フィルムから成る,サイズが170×250mmの包装袋であって,該包装袋中央にLLD♯15の層のみから成る直径6mmの蒸気抜き部があり,電子レンジ等の加熱により水蒸気が発生して内圧が上昇していき,ある圧力及び温度にまで達すると,前記蒸気抜き部が袋の外側に膨れてからポンと破裂して,直径約3mmの穴が開き,包装袋内の蒸気を放出する機構を備えた包装袋を比較例3とした。
Comparative Example 3
Also, a packaging bag having a size of 170 × 250 mm made of a laminated film having a layer structure of ONY # 15 / printing / adhesive / LLD # 30 / LLD # 15, the layer of LLD # 15 at the center of the packaging bag. There is a steam vent part with a diameter of 6mm consisting of only steam, steam is generated by heating such as a microwave oven, the internal pressure rises, and when it reaches a certain pressure and temperature, the steam vent part swells outside the bag A packaging bag equipped with a mechanism for rupturing and opening a hole with a diameter of about 3 mm and releasing the vapor in the packaging bag was designated as Comparative Example 3.
また,他の電子レンジ用加熱容器として,耐熱PPを使用した満水容量2.3リットルのMEYER社製の電子レンジ用圧力鍋を比較例4,シリコンを使用したルクレ社製のスチームケース(登録商標)を比較例5とした。 In addition, as a heating container for other microwave ovens, a pressure cooker for microwave oven made by MEYER having a full water capacity of 2.3 liters using heat-resistant PP is a comparative example 4, and a steam case made by Lukule Co., Ltd. using silicon (registered trademark). ) As Comparative Example 5.
〈温度測定〉
図10に示すように,耐熱容器33の底にマイクロ波を遮断して水の温度のみ計測できる温度データロガー32を両面テープ(図示せず)で固定し,150ccの水を充填して,これを上述の実施例1〜3,比較例2〜3の包装袋で実包したもの,また,比較例4〜5に収容したものを電子レンジ内に入れてマイクロ波で誘電加熱し,前記耐熱容器内の水の温度の変化を測定した。なお,測定に際しては,10分以上時間を空け,電子レンジ内の温度を下げてから行うものとし,電子レンジのターンテーブルの熱の影響を受けないよう,冷めた断熱皿に載せて実施した。
<Temperature measurement>
As shown in FIG. 10, a temperature data logger 32 that can measure only the temperature of water by blocking the microwave is fixed to the bottom of the heat-resistant container 33 with a double-sided tape (not shown) and filled with 150 cc of water. Are packaged in the packaging bags of Examples 1 to 3 and Comparative Examples 2 to 3 described above, and those contained in Comparative Examples 4 to 5 are placed in a microwave oven and dielectrically heated by microwaves, and the heat-resistant container The change in the temperature of the water inside was measured. Note that the measurement was performed after 10 minutes or more had elapsed and the temperature in the microwave oven had been lowered, and was placed on a cold insulated pan so that it was not affected by the heat of the microwave turntable.
前記データロガー32は120℃までの温度変化を秒単位で記録することができる。 The data logger 32 can record temperature changes up to 120 ° C. in seconds.
〈結果及び考察〉
実施例1〜3の測定結果を図11〜13に,比較例1〜5の測定結果を図14〜18に示す。
<Results and discussion>
The measurement results of Examples 1 to 3 are shown in FIGS. 11 to 13 and the measurement results of Comparative Examples 1 to 5 are shown in FIGS.
実施例1の温度測定の結果は,図11に示すように,最高沸点が104.0℃まで達し,水の温度が100℃に到達した後の安定領域での平均温度(以下,安定領域平均温度という。)は103.8℃であった。また,包装袋のサイズが一番小さいためか全測定結果の中で一番沸点が高い結果となった。 As shown in FIG. 11, the results of the temperature measurement in Example 1 show that the average temperature in the stable region after the maximum boiling point reached 104.0 ° C. and the water temperature reached 100 ° C. (hereinafter, the stable region average). The temperature was 103.8 ° C. Moreover, it was the result that the boiling point was the highest among all the measurement results because the size of the packaging bag was the smallest.
実施例2の温度測定の結果は,図12に示すように,最高沸点が104.0℃まで達し,安定領域平均温度は103.0℃であった。また,実施例1よりサイズが大きいが,縦長なのでマイクロ波発生源に近い部分ができ,温度の立ち上がりが速くなったと考えられる。 As a result of the temperature measurement of Example 2, as shown in FIG. 12, the maximum boiling point reached 104.0 ° C., and the stable region average temperature was 103.0 ° C. In addition, although the size is larger than that of Example 1, it is considered that a portion close to the microwave generation source was formed because of the vertically long shape, and the rise in temperature was accelerated.
実施例3の温度測定の結果は,図13に示すように,最高沸点が104.0℃まで達し,安定領域平均温度は103.0℃であった。実施例3の包装袋はサイズが大きい分,圧力の立ち上がりが遅くなるため温度の立ち上がりも他の実施例と比べて遅くなった。また,最高沸点は一瞬であった。 As a result of the temperature measurement in Example 3, as shown in FIG. 13, the maximum boiling point reached 104.0 ° C., and the stable region average temperature was 103.0 ° C. Since the packaging bag of Example 3 is large in size, the rise in pressure is slow, so the rise in temperature is also slow compared to the other examples. The highest boiling point was instantaneous.
比較例1の温度測定の結果は,図14に示すように,最高沸点が101.0℃まで達し,安定領域平均温度は100.8℃であった。なお,比較例1は包装袋を使用しない大気中下での誘電加熱であるが,電子レンジ内に滞留する蒸気や圧力によって,100℃以上の沸点になったと考えられる。 As a result of the temperature measurement of Comparative Example 1, as shown in FIG. 14, the maximum boiling point reached 101.0 ° C., and the stable region average temperature was 100.8 ° C. In addition, although the comparative example 1 is the dielectric heating in the air | atmosphere which does not use a packaging bag, it is thought that it became a boiling point of 100 degreeC or more with the vapor | steam and pressure which remain | survive in a microwave oven.
比較例2の温度測定の結果は,図15に示すように,最高沸点が101.0℃まで達し,安定領域平均温度は101.0℃であった。比較例2の包装袋が開口するまでは蒸気が滞留するため,温度の立ち上がりは大気中の比較例1に比べて早い。また,比較例1と比べて,早く安定領域に入った。また,比較例2は,大気中下の比較例1に比べれば,蒸らし効果があるといえる。 As a result of the temperature measurement of Comparative Example 2, as shown in FIG. 15, the maximum boiling point reached 101.0 ° C., and the stable region average temperature was 101.0 ° C. Since the vapor stays until the packaging bag of Comparative Example 2 is opened, the temperature rise is faster than that of Comparative Example 1 in the atmosphere. Also, compared with Comparative Example 1, it entered the stable region earlier. Moreover, it can be said that the comparative example 2 has a steaming effect as compared with the comparative example 1 under the atmosphere.
比較例3の温度測定の結果は,図16に示すように,最高沸点が101.5℃まで達し,安定領域平均温度は101.5℃であった。比較例2の平袋よりも蒸気を放出する穴(蒸気口)の大きさが制限されるので,蒸気が滞留するため最高沸点が比較例2と比べて0.5℃高くなっている。 As a result of the temperature measurement in Comparative Example 3, as shown in FIG. 16, the maximum boiling point reached 101.5 ° C., and the stable region average temperature was 101.5 ° C. Since the size of the hole (steam port) through which the steam is discharged is limited as compared with the flat bag of Comparative Example 2, the maximum boiling point is 0.5 ° C. higher than that of Comparative Example 2 because the steam stays.
比較例4の温度測定の結果は,図17に示すように,最高沸点が107.0℃まで達し,安定領域平均温度は106.5℃であった。比較例4の圧力鍋は容積が大きいため,加熱に時間が掛かるが,厚手のPPのために高圧力をかけられ,高い沸点となっている。 As a result of the temperature measurement in Comparative Example 4, as shown in FIG. 17, the maximum boiling point reached 107.0 ° C., and the stable region average temperature was 106.5 ° C. Since the pressure cooker of Comparative Example 4 has a large volume, it takes time to heat, but high pressure is applied due to the thick PP, and the boiling point is high.
比較例5の温度測定の結果は,図18に示すように,最高沸点が101.5℃まで達し,安定領域平均温度は101.0℃であった。測定結果は,比較例3とほぼ同等であった。 As a result of the temperature measurement in Comparative Example 5, as shown in FIG. 18, the maximum boiling point reached 101.5 ° C., and the stable region average temperature was 101.0 ° C. The measurement result was almost the same as that of Comparative Example 3.
以上のように,本発明の実施例1〜3は,最大で沸点が104.0℃と,高い数値を出すことができた。つまり,本発明の包装袋1は,冷凍食品のようなマイクロ波が入り難いため中心を加熱するには先ず外側から加温する必要がある凍った状態のものを収容する場合に,効果的であると考えられる。 As described above, Examples 1 to 3 of the present invention were able to obtain a high numerical value with a maximum boiling point of 104.0 ° C. In other words, the packaging bag 1 of the present invention is effective in containing a frozen product that needs to be heated from the outside first to heat the center because microwaves such as frozen food are difficult to enter. It is believed that there is.
〈圧力測定〉
次に,図19(a)に示すように,水100ccが入った耐熱容器33を実包した実施例1〜3,比較例2〜3の包装袋の一部に直径3mmの穴を開け,図19(b)に示すように,穴の開いたフィルム表裏のそれぞれにゴムパッキン38,38を当てて,このゴムパッキン38,38を挟むようにプラスチックボルト36とプラスチックナット37とを締め付ける。
<Pressure measurement>
Next, as shown in FIG. 19 (a), a hole having a diameter of 3 mm is formed in a part of the packaging bags of Examples 1 to 3 and Comparative Examples 2 to 3 in which a heat-resistant container 33 containing 100 cc of water is actually packaged. As shown in FIG. 19 (b), rubber packings 38, 38 are applied to the front and back of the film with holes, and the plastic bolts 36 and the plastic nuts 37 are tightened so as to sandwich the rubber packings 38, 38.
また,前記プラスチックボルト36には,上下を貫通する直径1mmの穴が設けられており,圧力センサー(図示せず)に通じるホース35を通すことができる。 Further, the plastic bolt 36 is provided with a hole having a diameter of 1 mm penetrating vertically, and a hose 35 leading to a pressure sensor (not shown) can be passed therethrough.
なお,前記圧力センサーには,データログ機能が無いので,内圧がMAXになった時及び,レンジアップ終了までの数値の推移を測定記録した。 Since the pressure sensor does not have a data log function, the change in the numerical value was measured and recorded when the internal pressure reached MAX and until the end of the range up.
〈結果及び考察〉
図20は,実施例1〜3の測定結果を示し,図21は,比較例1〜3の測定結果を示す。
<Results and discussion>
FIG. 20 shows the measurement results of Examples 1-3, and FIG. 21 shows the measurement results of Comparative Examples 1-3.
図20及び,図21より,本発明の実施例1〜3の方が蒸気抜け後も高い圧力を維持していることが確認できた。また,ボイルシャルルの法則から,包装袋内の圧力が高まれば温度も上昇して沸点が上がると予想されるが,上述の温度測定の結果と共に,実測値においても確認できた。なお,上記圧力測定方法においても圧力損失があるものと考えられるため,実際の値は,測定結果で得られた数値よりも高いものと考えられる。 From FIG. 20 and FIG. 21, it was confirmed that Examples 1 to 3 of the present invention maintained a higher pressure even after steam escape. Also, according to Boyle Charles's law, it is expected that if the pressure in the packaging bag increases, the temperature will rise and the boiling point will rise. In addition, since it is thought that there is a pressure loss also in the said pressure measuring method, it is thought that an actual value is higher than the numerical value obtained by the measurement result.
また,上述の温度測定の結果と共に,比較例2〜3の包装袋でも蒸気が多少は滞留することが確認されたが,実施例1〜3は,より大量の蒸気が滞留することが確認され,充分な加熱蒸らし効果が期待できることが分かった。 In addition to the results of the temperature measurement described above, it was confirmed that some of the steam remained in the packaging bags of Comparative Examples 2 and 3, but in Examples 1 to 3, it was confirmed that a larger amount of steam stayed. It was found that sufficient steaming effect can be expected.
〈スリット部〉
次に,本発明の包装袋の実施例をレンジアップして,スリット部5の状態について観察した。
<Slit part>
Next, the range of the embodiment of the packaging bag of the present invention was increased, and the state of the slit portion 5 was observed.
図22は,水100ccを充填した容器を収容した本発明の実施例の包装体を電子レンジのマイクロ波による誘電加熱した後のスリット部5の状態を示す拡大図である。 FIG. 22 is an enlarged view showing the state of the slit portion 5 after the package of the embodiment of the present invention containing the container filled with 100 cc of water is dielectrically heated by microwaves of a microwave oven.
外層3のスリット7が拡がり,内層2に複数の微細なピンホール9が適宜間隔で複数形成されていることが確認できる。 It can be confirmed that the slits 7 of the outer layer 3 are expanded, and a plurality of fine pinholes 9 are formed in the inner layer 2 at appropriate intervals.
図23は,濡れティッシュを収容した本発明の実施例の包装体を誘電加熱した後のスリット部5の状態を示す拡大図である。 FIG. 23 is an enlarged view showing the state of the slit portion 5 after dielectric heating of the package of the embodiment of the present invention containing wet tissue.
複数のピンホール9が,適宜間隔で複数形成されていることが確認できるが,ピンホール9の数が少ないことが確認できる。これから,本発明のスリット部5は,発生する蒸気の量に応じて,開孔8の発生数が変化することが確認でき,また,このため必要以上に蒸気を包装袋外に放出させないことが確認できる。 It can be confirmed that a plurality of pinholes 9 are formed at appropriate intervals, but it can be confirmed that the number of pinholes 9 is small. From this, it can be confirmed that the slit portion 5 of the present invention changes the number of the openings 8 according to the amount of steam generated, and this prevents the steam from being discharged outside the packaging bag more than necessary. I can confirm.
なお,外層3と内層2との積層に用いるラミネート接着剤の強度を通常より弱くした積層フィルム4のスリット部5を有する本発明の包装袋1をレンジアップさせたところ,外層3はTD方向に通常の3倍程度拡がり,また,内層2の凹条が本実施形態では,TD方向に延ばされることで略長円状の薄膜部42となり,内圧によって開孔が発生し蒸気が放出されることが確認されたが,そのレンジアップ後の状態を示す拡大図を図24に示す。図24に示されるように,内層2に上述の複数の略長円状の薄膜部42を確認することができる。 In addition, when the packaging bag 1 of the present invention having the slit portion 5 of the laminated film 4 in which the strength of the laminating adhesive used for laminating the outer layer 3 and the inner layer 2 is made lower than usual, the outer layer 3 is in the TD direction. In the present embodiment, the inner layer 2 is elongated in the TD direction to form a substantially oval thin film portion 42, which generates a hole due to internal pressure and releases steam. FIG. 24 shows an enlarged view showing a state after the range is increased. As shown in FIG. 24, the above-described plurality of substantially oval thin film portions 42 can be confirmed in the inner layer 2.
本発明の包装袋1及び包装体10によれば,高温・高圧下による調理が可能となるため,調理に要する時間が短縮されるため,エネルギーが節約でき,また,食品のビタミン・ミネラルなどの栄養素や食材の味・香りを損ない難い。 According to the packaging bag 1 and the packaging body 10 of the present invention, cooking at high temperature and high pressure is possible, so the time required for cooking can be shortened, energy can be saved, and vitamins and minerals of foods can be saved. It is difficult to impair the taste and aroma of nutrients and ingredients.
また,マイクロ波による誘電加熱と蒸気の両方で調理するため,冷凍食品でも加熱ムラ無く仕上げることができる。 In addition, because it is cooked by both microwave dielectric heating and steam, even frozen foods can be finished without uneven heating.
特に,本発明の包装袋は必要最小限の蒸気のみを放出するため,包装袋内に蒸気が充満し,収容された食品の表面に高圧の蒸気が触れており,また,フィルムに付着した蒸気は水滴となって底に落ちるため,乾燥を防ぐことができ,余計な水分が不要となり,また,袋表面に付着した水蒸気が再び底面に戻るので,蒸籠や補水を必要とする商品であっても,素材の水分のみで調理可能となり,素材の持つ旨味や栄養分をそのまま味わえる。 In particular, since the packaging bag of the present invention emits only the minimum necessary amount of steam, the packaging bag is filled with steam, the high-pressure steam is in contact with the surface of the contained food, and the vapor adhered to the film. Since it drops to the bottom as water droplets, drying can be prevented, no extra moisture is required, and water vapor attached to the bag surface returns to the bottom again, so it is a product that requires steaming or rehydration. However, it becomes possible to cook only with the moisture of the material, and you can enjoy the umami and nutrients of the material as they are.
また,マイクロ波は凍った部分には効果が少なく,素材の中心に熱が通り難いが,本発明の包装袋及び包装体による高温高圧調理によって,加熱ムラを最小限に抑えることができ,これにより,生の冷凍食材から調理する,一度しか熱を通していない,できたて食感のある商品開発が可能となる。 Microwaves have little effect on frozen parts, and it is difficult for heat to pass through the center of the material. However, high-temperature and high-pressure cooking using the packaging bag and package of the present invention can minimize heating unevenness. This makes it possible to develop products that are cooked from raw frozen ingredients and that have only been heated once and have a fresh texture.
また,上述した特殊な蒸気抜き機能を有する本発明の包装袋1は,食品以外にも,雑貨,医薬,工業用途として使用可能である。 Moreover, the packaging bag 1 of the present invention having the above-described special steam venting function can be used for miscellaneous goods, pharmaceuticals, and industrial applications in addition to food.
前記雑貨用途としては,例えば,手を汚さずに電子レンジで加熱したいもの,蒸気と一緒に揮発性のある洗浄剤を電子レンジ内に充満させて汚れを取り易くする等の用途があり,前記医薬用途としては,例えば,医薬を本発明の包装袋に収容して包装袋を開封せずに電子レンジで加熱加温する用途があり,前記工業用途としては,例えば,袋が膨張しても任意の箇所から安全に気圧を抜く用途があり,一例として,携帯電話のリチウム電池の外装袋として使用し,異常加熱で膨張した際に破裂を抑えて電解液の飛び散りを防ぐ,また電解液を安全な位置から排出する等の用途がある。 Examples of the miscellaneous goods include, for example, those that want to be heated in a microwave oven without soiling the hands, and that the volatile cleaning agent is filled in the microwave oven together with steam to make it easier to remove dirt. Examples of the medicinal use include a use in which the medicinal product is accommodated in the packaging bag of the present invention and heated and heated in a microwave oven without opening the packaging bag. For example, it can be used as an exterior bag for mobile phone lithium batteries to prevent explosion when the battery expands due to abnormal heating, preventing the electrolyte from splashing. There are uses such as discharging from a safe position.
1 包装袋
2 内層
3 外層
4 積層フィルム
5 スリット部
6 ヒートシール部
7 スリット
7a 内層のスリット
7b 外層のスリット
8 開孔
9 ピンホール
10 包装体
11 スリット刃
12a ヒートシールバー
12b ヒートシールバー
13 ノッチ
14 蒸気
15 蒸気
17 通孔
21 ピンホールテスター
22 アース線
23 表示器
24 コロナ放電
31 断熱素材の皿
32 データロガー
33 耐熱容器
34 圧力センサー
35 ホース
36 プラスチックボルト
37 プラスチックナット
38 ゴムパッキン
41 凹凸条
42 略長円状の薄膜部
51 第1フィルム
51a 基材フィルム
51b シーラント層
52 第2フィルム
52a 基材フィルム
52b シーラント層
52c シーラント層
53 開口
DESCRIPTION OF SYMBOLS 1 Packaging bag 2 Inner layer 3 Outer layer 4 Laminated film 5 Slit part 6 Heat seal part 7 Slit 7a Inner layer slit 7b Outer layer slit 8 Opening 9 Pinhole 10 Packaging body 11 Slit blade 12a Heat seal bar
12b Heat seal bar 13 Notch 14 Steam 15 Steam 17 Through hole 21 Pinhole tester 22 Ground wire 23 Indicator 24 Corona discharge 31 Dish of heat insulation material 32 Data logger 33 Heat resistant container 34 Pressure sensor 35 Hose 36 Plastic bolt 37 Plastic nut 38 Rubber Packing 41 Concave and convex strip 42 Substantially oval thin film portion 51 First film 51a Base film 51b Sealant layer 52 Second film 52a Base film 52b Sealant layer 52c Sealant layer 53 Opening
Claims (6)
少なくとも前記外層にスリットを形成すると共に,前記スリットを被覆する適宜幅で,前記両層をヒートシールしてヒートシール部を形成し,マイクロ波の誘電加熱による内圧上昇により,前記スリット部の内層が適宜間隔で開孔を形成するよう,前記ヒートシール部の少なくとも前記内層表面で前記スリットに対峙して凹凸条が形成されて成る包装袋及び包装体。 A package for laminating and laminating at least two layers of an inner layer and an outer layer made of a synthetic resin film, containing food and sealing,
A slit is formed in at least the outer layer, and a heat seal portion is formed by heat-sealing the two layers with an appropriate width to cover the slit, and an inner pressure of the slit portion is increased by an increase in internal pressure due to microwave dielectric heating. A packaging bag and a packaging body in which concave and convex strips are formed opposite to the slits on at least the inner layer surface of the heat seal portion so as to form openings at appropriate intervals.
The packaging bag according to any one of claims 1 to 5, wherein the opening is formed by opening the inner layer in a width direction of the slit through an appropriate interval in a direction orthogonal to the slit. And packaging.
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Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2016150772A (en) * | 2015-02-18 | 2016-08-22 | 大日本印刷株式会社 | Bag having gas barrier property and easily unsealing property and manufacturing method of the same |
JP2017001679A (en) * | 2015-06-05 | 2017-01-05 | 凸版印刷株式会社 | Flat pouch |
JP6063104B1 (en) * | 2016-07-06 | 2017-01-18 | 日生化学株式会社 | Packaging bag |
JP2017074965A (en) * | 2015-10-14 | 2017-04-20 | 凸版印刷株式会社 | Laminated film and packaging container |
JPWO2016157608A1 (en) * | 2015-03-31 | 2018-01-25 | 株式会社日清製粉グループ本社 | Food packaging and food |
JP2019043638A (en) * | 2017-09-05 | 2019-03-22 | 凸版印刷株式会社 | Steam venting packaging bag |
JP2019112094A (en) * | 2017-12-22 | 2019-07-11 | 凸版印刷株式会社 | Packaging bag |
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JP6960782B2 (en) * | 2017-07-04 | 2021-11-05 | 株式会社メイワパックス | Heat seal film for packaging and packaging containers using the heat seal film |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH1191832A (en) * | 1997-09-22 | 1999-04-06 | Daiwa Gravure Co Ltd | Packaging bag |
JP2005178903A (en) * | 2003-11-28 | 2005-07-07 | Toyo Seikan Kaisha Ltd | Packaging container for microwave oven |
WO2012086295A1 (en) * | 2010-12-24 | 2012-06-28 | 株式会社メイワパックス | Container for packaging, and method for examining container for packaging |
-
2013
- 2013-05-27 JP JP2013110840A patent/JP5899155B2/en active Active
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH1191832A (en) * | 1997-09-22 | 1999-04-06 | Daiwa Gravure Co Ltd | Packaging bag |
JP2005178903A (en) * | 2003-11-28 | 2005-07-07 | Toyo Seikan Kaisha Ltd | Packaging container for microwave oven |
WO2012086295A1 (en) * | 2010-12-24 | 2012-06-28 | 株式会社メイワパックス | Container for packaging, and method for examining container for packaging |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2016150772A (en) * | 2015-02-18 | 2016-08-22 | 大日本印刷株式会社 | Bag having gas barrier property and easily unsealing property and manufacturing method of the same |
JPWO2016157608A1 (en) * | 2015-03-31 | 2018-01-25 | 株式会社日清製粉グループ本社 | Food packaging and food |
JP2017001679A (en) * | 2015-06-05 | 2017-01-05 | 凸版印刷株式会社 | Flat pouch |
JP2017074965A (en) * | 2015-10-14 | 2017-04-20 | 凸版印刷株式会社 | Laminated film and packaging container |
JP6063104B1 (en) * | 2016-07-06 | 2017-01-18 | 日生化学株式会社 | Packaging bag |
WO2018008117A1 (en) * | 2016-07-06 | 2018-01-11 | 日生化学株式会社 | Packaging bag |
JP2019043638A (en) * | 2017-09-05 | 2019-03-22 | 凸版印刷株式会社 | Steam venting packaging bag |
JP2019112094A (en) * | 2017-12-22 | 2019-07-11 | 凸版印刷株式会社 | Packaging bag |
JP7147164B2 (en) | 2017-12-22 | 2022-10-05 | 凸版印刷株式会社 | Manufacturing method of packaging bag |
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