JPS63125177A - Self-sustaining bag - Google Patents
Self-sustaining bagInfo
- Publication number
- JPS63125177A JPS63125177A JP61269404A JP26940486A JPS63125177A JP S63125177 A JPS63125177 A JP S63125177A JP 61269404 A JP61269404 A JP 61269404A JP 26940486 A JP26940486 A JP 26940486A JP S63125177 A JPS63125177 A JP S63125177A
- Authority
- JP
- Japan
- Prior art keywords
- layer
- thin film
- bag
- metal thin
- heat
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000010410 layer Substances 0.000 claims description 71
- 229910052751 metal Inorganic materials 0.000 claims description 35
- 239000002184 metal Substances 0.000 claims description 35
- 239000010409 thin film Substances 0.000 claims description 30
- 239000000463 material Substances 0.000 claims description 23
- 229920003002 synthetic resin Polymers 0.000 claims description 19
- 239000000057 synthetic resin Substances 0.000 claims description 19
- 230000004888 barrier function Effects 0.000 claims description 18
- 229920005989 resin Polymers 0.000 claims description 11
- 239000011347 resin Substances 0.000 claims description 11
- 230000001070 adhesive effect Effects 0.000 claims description 9
- 239000012790 adhesive layer Substances 0.000 claims description 9
- 239000000853 adhesive Substances 0.000 claims description 8
- 239000007789 gas Substances 0.000 description 13
- 238000010411 cooking Methods 0.000 description 6
- 239000010408 film Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 239000004677 Nylon Substances 0.000 description 3
- -1 Polypropylene Polymers 0.000 description 3
- 239000004743 Polypropylene Substances 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- 235000013305 food Nutrition 0.000 description 3
- 239000012793 heat-sealing layer Substances 0.000 description 3
- 229920001778 nylon Polymers 0.000 description 3
- 229920000728 polyester Polymers 0.000 description 3
- 229920001155 polypropylene Polymers 0.000 description 3
- 230000003014 reinforcing effect Effects 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 230000002542 deteriorative effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000005038 ethylene vinyl acetate Substances 0.000 description 2
- 239000011888 foil Substances 0.000 description 2
- 230000004927 fusion Effects 0.000 description 2
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 2
- 229920000098 polyolefin Polymers 0.000 description 2
- 229920000178 Acrylic resin Polymers 0.000 description 1
- 239000004925 Acrylic resin Substances 0.000 description 1
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
- 229920000219 Ethylene vinyl alcohol Polymers 0.000 description 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- 229920001328 Polyvinylidene chloride Polymers 0.000 description 1
- 230000009172 bursting Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 229910001882 dioxygen Inorganic materials 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000005022 packaging material Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 229920002239 polyacrylonitrile Polymers 0.000 description 1
- 229920006122 polyamide resin Polymers 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 239000005033 polyvinylidene chloride Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 238000003303 reheating Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 229920002050 silicone resin Polymers 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 229920002803 thermoplastic polyurethane Polymers 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Food Science & Technology (AREA)
- Mechanical Engineering (AREA)
- Package Specialized In Special Use (AREA)
- Bag Frames (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は食品等を収納して、電子レンジで調理可能な
自立袋に関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] This invention relates to a self-supporting bag that can store food and the like and cook it in a microwave oven.
近年、電子レンジなどで再加熱するだけで、食卓に供す
ることができる調理済或は半調理済食品が増加しており
、このような食品の味や品質の劣化を防ぐため、光や空
気、水分などに対してバリヤー性の優れたアルミニウム
箔などの金属薄膜層を含む包装材料で密封包装すること
が一般に行なわれている。In recent years, there has been an increase in the number of cooked or semi-cooked foods that can be served on the table simply by reheating them in a microwave oven, etc. In order to prevent the taste and quality of such foods from deteriorating, it is necessary to protect them from light, air, etc. It is common practice to hermetically package products using a packaging material containing a thin metal film layer, such as aluminum foil, which has excellent barrier properties against moisture and the like.
しかしながら、金属薄膜層は、マイクロ波を反射してし
まうため、上記のような包装形態のものをそのまま電子
レンジに投入しても、内容物を加熱することができず、
また電子レンジ自体の故障の原因にもなるため、包装体
を開封して内容物を取り出し、他の容器に移し換えて加
熱している。However, since the metal thin film layer reflects microwaves, even if the packaged item described above is placed in the microwave as is, the contents cannot be heated.
Moreover, since it may cause a malfunction of the microwave oven itself, the package is opened, the contents are taken out, and the contents are transferred to another container and heated.
しかし、その場合も、容器をさらにラップフィルムで包
む必要があり、非常に面倒である。However, even in that case, it is necessary to further wrap the container with cling film, which is very troublesome.
そこで、上記のような手間を省くため、金属薄膜層の部
分を除去することができ、従ってそのままで調理可能な
自立袋が、既に、この発明者らによって提案されている
。Therefore, in order to save the above-mentioned labor, the present inventors have already proposed a self-standing bag in which the metal thin film layer can be removed and therefore can be used for cooking as is.
しかしながら、このような自立袋は通常の平袋と異なり
、構造上底面部に別途シートを固着する必要があり、こ
の底面シートにも酸素ガス、水蒸気、光などの遮断のた
めに金属薄膜層を設けるのが通常である。しかし底面部
の金属薄膜層を除去する構造は非常に複雑となるため、
底面部の金属薄膜層を除去する必要のない自立袋を、既
に、この発明者らは提案しているが、電子レンジの種類
、また、使用方法を誤るとスパークを起こす場合がある
。However, unlike ordinary flat bags, such self-standing bags require a separate sheet to be attached to the bottom due to their structure, and this bottom sheet also has a metal thin film layer to block oxygen gas, water vapor, light, etc. It is normal to provide one. However, the structure to remove the metal thin film layer on the bottom is very complicated, so
The present inventors have already proposed a self-standing bag that does not require removal of the metal thin film layer on the bottom, but sparks may occur if the type of microwave oven is used incorrectly or if the method of use is incorrect.
そこで、この発明の目的は、底面部の金属薄膜層を除去
する必要がなく、かつスパークを起こすことのない自立
袋を提供することである。SUMMARY OF THE INVENTION An object of the present invention is to provide a self-supporting bag that does not require removal of the metal thin film layer on the bottom and does not cause sparks.
上記の目的を達成するため、この発明におい−ては、内
面が熱融着可能な合成樹脂基材の外面に接着剤層及びそ
れよりも接着強度の弱い樹脂層を介して金属薄膜層を含
むガスバリヤ−層を積層し、このガスバリヤ−層を合成
樹脂基材から手で剥離可能とした側面シートの前記内面
を重ね合せ、外面が熱融着可能で合成樹脂を主体とする
ガスバリヤ−層を含み両端部に切欠が設けられた２つ折
りの底面シートを、重ね合せた側面シート内に挿入し、
側面シートの側縁部を熱封緘し、かつ底面シートの側縁
部及び下縁部と側面シートの内面とを熱封緘したのであ
る。In order to achieve the above object, the present invention includes a metal thin film layer on the outer surface of a synthetic resin base material whose inner surface is heat-sealable via an adhesive layer and a resin layer having a weaker adhesive strength than the adhesive layer. A gas barrier layer is laminated, and the inner surface of the side sheet is laminated with the gas barrier layer which can be manually peeled off from the synthetic resin base material, and the outer surface is heat-sealable and includes a gas barrier layer mainly made of synthetic resin. Insert the folded bottom sheet with notches at both ends into the stacked side sheets,
The side edges of the side sheets were heat sealed, and the side edges and lower edges of the bottom sheet and the inner surface of the side sheets were heat sealed.
前記のシートで形成した袋は、金属薄膜層を含むガスバ
リヤ−層が接着強度の弱い樹脂層を介して基材と積層さ
れているため、手で簡単に剥離でき、これを取り去ると
、合成樹脂基材からなる袋が残り、これはマイクロ波を
反射しないから、そのまま電子レンジで調理することが
できる。また、この袋の底面シートには、金属薄膜層は
積層されていないが、ガスバリヤ−層を含み、かつ自立
状態で流通しているため、実質的に遮光性が良好で、内
容物の保存性に支障はない。The bag formed from the above-mentioned sheet has a gas barrier layer containing a metal thin film layer laminated to the base material via a resin layer with weak adhesive strength, so it can be easily peeled off by hand, and when this is removed, the synthetic resin A bag made of the base material remains, and since it does not reflect microwaves, it can be used as is for cooking in the microwave. In addition, although the bottom sheet of this bag is not laminated with a metal thin film layer, it does contain a gas barrier layer and is distributed in an independent state, so it has substantially good light-shielding properties and a long shelf life for the contents. There is no problem.
まず、自立袋を形成する側面シート及び底面シートの構
造について説明する。First, the structure of the side sheets and bottom sheet forming the self-supporting bag will be explained.
第１図に示すように、側面シート１は、合成樹脂基材２
の内面に熱融着層３、外面に、比較的接着度の弱い樹脂
層４及び接着剤層５を介して、ガスバリヤ−層としての
金属箔や金属蒸着フィルムのような金属薄膜層６を積層
したものである。なお、金属薄膜層６の外面に表面保護
層７を設けておくのがよい。この層７は合成樹脂のコー
ティングや合成樹脂フィルムの貼り合せなどによって形
成する。また、金属薄膜層６の外面に印刷層を設けてお
くことができる。As shown in FIG. 1, the side sheet 1 has a synthetic resin base material 2.
A heat-sealing layer 3 is laminated on the inner surface, and a metal thin film layer 6 such as metal foil or metal vapor deposited film as a gas barrier layer is laminated on the outer surface via a resin layer 4 with relatively weak adhesion and an adhesive layer 5. This is what I did. Note that it is preferable to provide a surface protection layer 7 on the outer surface of the metal thin film layer 6. This layer 7 is formed by coating with a synthetic resin or bonding a synthetic resin film. Further, a printed layer can be provided on the outer surface of the metal thin film layer 6.
上記基材２には、ポリエステル、ナイロン（商品名）、
ポリプロピレジなどが好適であり、それらの単体、複合
体のいずれであってもよい。また、熱融着層３としては
、ポリオレフィン、エチレン−酢酸ビニル共重合体など
が用いられる。なお、基材２が、それ自体熱融着性を有
すれば、この層３は省略することができる。The base material 2 includes polyester, nylon (trade name),
Polypropylene resin and the like are suitable, and they may be used alone or as a composite. Further, as the thermal adhesive layer 3, polyolefin, ethylene-vinyl acetate copolymer, etc. are used. Note that this layer 3 can be omitted if the base material 2 itself has thermal adhesive properties.
前記樹脂層４は、比較的接着強度の弱い、例えばビニル
樹脂やウレタン樹脂、アクリル樹脂やポリアミド樹脂、
シリコーン樹脂などの単体或は混合物から成り、この樹
脂のバートコートによって形成されたものであって、そ
のパターンの一例は、第３図（イ）、（ロ）、ぐ）に示
すように、コートしない部分が点状、線状、格子状など
の模様を形成するようにする。この樹脂層４を第１図と
は逆に金属薄膜層６に設けてもよい。The resin layer 4 is made of a material having relatively low adhesive strength, such as vinyl resin, urethane resin, acrylic resin, polyamide resin,
It is made of a single substance or a mixture of silicone resin, etc., and is formed by a bart coat of this resin. An example of the pattern is as shown in Fig. 3 (a), (b), and g). The areas that are not covered should form a pattern such as dots, lines, or grids. This resin layer 4 may be provided on the metal thin film layer 6 contrary to FIG. 1.
前記接着剤層５は、レトルト殺菌処理を施しても接着強
度の低下が小さい接着剤を使用することが望ましい、そ
の様な接着剤としては、２液硬化型ウレタン系ドライラ
ミネ一ト用接着剤がある。For the adhesive layer 5, it is preferable to use an adhesive that exhibits a small decrease in adhesive strength even when subjected to retort sterilization treatment.As such an adhesive, a two-component curing type urethane adhesive for dry laminate is used. be.
第２図に示すように、金属薄膜層６の内面に、補強層６
′を設けておくことができる。この補強層６′は、ポリ
エステル、ポリプロピレン、ナイロン、エポキシ樹脂な
どから成り、レトルト処理の際の金属薄膜層の腐食を防
止すると同時に、ガスバリヤ−層としての厚みを増加せ
しめ、剥離を容易にするのにも役立つ。なお、第１図及
び第２図に示す切り口Ａについては後述する。As shown in FIG. 2, a reinforcing layer 6 is provided on the inner surface of the metal thin film layer 6.
' can be set. This reinforcing layer 6' is made of polyester, polypropylene, nylon, epoxy resin, etc., and serves to prevent corrosion of the metal thin film layer during retort processing, and at the same time increases the thickness of the gas barrier layer and facilitates peeling. Also useful. Note that the cut A shown in FIGS. 1 and 2 will be described later.
次に、底面シート１０は、第４図に示すように、合成樹
脂基材１１と合成樹脂を主体とするガスバリヤ−Ｎ１２
と、熱融着層１３を積層したものである、この基材１１
としては、ポリエステル、ナイロン、ポリプロピレンな
どの単体又は複合体が選択される０層１２としては、ポ
リ塩化ビニリデン系、エチレン−ビニルアルコール共重
合体系、ポリビニルアルコール系、ポリアクリロニトル
系等の合成樹脂の単体又は複合体が好ましい、また、７
１１１３は、ポリオレフィン、エチレン−酢酸ビニル共
重合体など、側面シート１の熱融着層３と熱融着性が良
好なものを選択する。なお、合成樹脂基材１１のガスバ
リヤ−性が優れておれば、あるいは、熱融着Ｎ１３のガ
スバリヤ−性が優れておれば、ガスバリヤ−層１２を省
略することができる。Next, as shown in FIG. 4, the bottom sheet 10 includes a synthetic resin base material 11 and a gas barrier N12 mainly made of synthetic resin.
This base material 11 is made by laminating a thermal adhesive layer 13 and
For the layer 12, a single substance or composite material such as polyester, nylon, or polypropylene is selected.As for the layer 12, a synthetic resin such as polyvinylidene chloride, ethylene-vinyl alcohol copolymer, polyvinyl alcohol, or polyacrylonitrile is selected. A simple substance or a complex is preferable, and 7
1113 is selected from a material having good heat-fusibility with the heat-fusible layer 3 of the side sheet 1, such as polyolefin or ethylene-vinyl acetate copolymer. Note that if the synthetic resin base material 11 has excellent gas barrier properties, or if the heat-sealed N13 has excellent gas barrier properties, the gas barrier layer 12 can be omitted.
第５図に示す底面シート１０′は、遮光層１５を設けた
ものであり、この遮光層１５は、印刷インキによる着色
層であってもよいが、好ましくはアルミニウムなどの金
属パウダー又はフレークを混入したものが良い、なお、
合成樹脂基材１１あるいは熱融着層１３自体に、顔料の
練り込みなどによって遮光性を持たせてもよい、この場
合には遮光７１１５は省略することができる。The bottom sheet 10' shown in FIG. 5 is provided with a light-shielding layer 15, and this light-shielding layer 15 may be a colored layer using printing ink, but is preferably mixed with metal powder or flakes such as aluminum. It is better if
The synthetic resin base material 11 or the heat-sealing layer 13 itself may have a light-shielding property by kneading a pigment or the like. In this case, the light-shielding 7115 can be omitted.
前記シート１０．１０′には第６図に示すように、両端
の対応する位置に、切欠き１４が設けられている。As shown in FIG. 6, the sheets 10, 10' are provided with cutouts 14 at corresponding positions on both ends.
第７図は、上記のように側面シート１及び底面シート１
０を用いて形成した自立袋の一例を示す。FIG. 7 shows the side sheet 1 and the bottom sheet 1 as described above.
An example of a self-supporting bag formed using 0 is shown.
まず、側面シート１を２枚、熱融着層３を内面にして重
ね合せ、その間に、底面シート１０を２つ折りにして挿
入する。このとき、シート１０の両端に形成された切欠
き１４の位置を一致させ、熱融着層１３を外面にする。First, two side sheets 1 are stacked one on top of the other with the thermal adhesive layer 3 on the inside, and the bottom sheet 10 is folded in half and inserted between them. At this time, the positions of the notches 14 formed at both ends of the sheet 10 are aligned, and the heat-sealing layer 13 is placed on the outer surface.
そして、シート１の周縁部及びシート１０の下縁に対応
する部分を、第８図の鎖線に示すように、熱融着して熱
封緘部８．９を形成すると、自立袋が出来上る。Then, the peripheral edge of the sheet 1 and the portion corresponding to the lower edge of the sheet 10 are heat-sealed to form a heat-sealed portion 8.9 as shown by the chain line in FIG. 8, thereby completing a self-supporting bag.
出来上った袋の下端部は、第９図に示すように、底面シ
ート１０の切欠き１４の部分で側面シート１．１が互に
融着し、底面シートの内面は融着していないため、２つ
折りにした底面シート１０の両端部が側面シート１．１
に挟まれて固定された状態で、開くことができ、従って
袋の底面が拡張され、自立が可能となる。At the lower end of the finished bag, as shown in FIG. 9, the side sheets 1.1 are fused to each other at the notch 14 of the bottom sheet 10, and the inner surface of the bottom sheet is not fused. Therefore, both ends of the bottom sheet 10 folded in half are the side sheets 1.1.
The bag can be opened while being sandwiched and fixed between the bags, thereby expanding the bottom surface of the bag and allowing it to stand on its own.
第８図に示すように、このような袋の下端隅角部には、
ハーフカット２１．２１が施されている。As shown in Figure 8, at the bottom corner of such a bag,
A half cut 21.21 is applied.
このハーフカットは、側面シート１の外面から少くとも
基材２に達する切り目であって、袋の金属薄膜層６を剥
離する手がかりになるものである。This half cut is a cut that reaches at least the base material 2 from the outer surface of the side sheet 1, and serves as a clue for peeling off the metal thin film layer 6 of the bag.
即ち、この切り目に沿って、それが拡がるように折り曲
げると、切り目の端面において、金属薄膜層６と基材２
が少し分離するので、その部分をつまんで金属薄膜層６
を剥離していくことができる。That is, when it is bent so that it widens along this cut, the metal thin film layer 6 and the base material 2 are separated at the end face of the cut.
will separate a little, so pinch that part and remove the metal thin film layer 6.
can be peeled off.
また、袋の両面から金属薄膜層６を除去するため、一方
のハーフカット２１は、袋の反対面に設けておく。Further, in order to remove the metal thin film layer 6 from both sides of the bag, one half cut 21 is provided on the opposite side of the bag.
この袋を調理に供するには、まず、第８図に示すハーフ
カット２１に沿って、袋の隅角部を折り曲げると、切り
目の端面では金属薄膜層６と基材２が分離しているので
、金属薄膜層６を手でつまむことができる。そこを手が
かりとして金属薄膜層６を表面保護層７と共に引張ると
、基材２から剥離される。袋の反対面も、同様にして金
属薄膜層６を剥離すると、第１０図のように合成樹脂基
材２から成る袋が残る。この袋を電子レンジに入れて調
理すればよい。To use this bag for cooking, first fold the corner of the bag along the half-cut 21 shown in FIG. , the metal thin film layer 6 can be pinched by hand. When the metal thin film layer 6 is pulled together with the surface protection layer 7 using this as a clue, it is peeled off from the base material 2. When the metal thin film layer 6 is peeled off from the opposite side of the bag in the same manner, a bag made of the synthetic resin base material 2 remains as shown in FIG. 10. Just put this bag in the microwave and cook.
このとき、底面シート１０にはスパークの原因となり得
る金属薄膜層がないため、安心して使用することができ
る。At this time, the bottom sheet 10 does not have a metal thin film layer that could cause sparks, so it can be used with confidence.
この調理の際、自立袋の上端部に切り目Ａが設けである
と、内容物が加熱によって膨張しても、袋が破裂するこ
とがない。During this cooking, if the cut A is provided at the upper end of the self-supporting bag, the bag will not burst even if the contents expand due to heating.
なお、補強層６′が設けられている場合は、金属薄膜層
６と共に、上記の手順で剥離すればよい。In addition, when the reinforcing layer 6' is provided, it may be peeled off together with the metal thin film layer 6 by the above-mentioned procedure.
また、底面シート１０′を用いた自立袋の場合も、金属
薄膜層６の剥離手順は、上記と同様である。Also, in the case of a self-supporting bag using the bottom sheet 10', the procedure for peeling off the metal thin film layer 6 is the same as described above.
この発明の自立袋は、以上のように、側面シートが合成
樹脂基材と金属ｇｉ膜層との積層体より成り、底面シー
トは金属薄膜層を含まないがガスバリヤ−層を備えてお
り、また場合によっては遮光層を設けることも可能であ
るため強靭でバリヤー性に優れており、常温流通、長期
保存などの取扱いに充分耐えることができ、かつ内容物
の変質を防止することができ、また側面シートの金属薄
膜層を剥離可能にしであるので、電子レンジで調理でき
るとともに、調理時に切り目を設けておけば、内圧上昇
による袋の破裂を防止することができる。As described above, in the self-standing bag of the present invention, the side sheet is made of a laminate of a synthetic resin base material and a metal GI film layer, the bottom sheet does not include a metal thin film layer but is equipped with a gas barrier layer, and In some cases, it is possible to provide a light-shielding layer, so it is strong and has excellent barrier properties, can withstand handling such as distribution at room temperature and long-term storage, and can prevent the contents from deteriorating. Since the metal thin film layer of the side sheet is peelable, it can be cooked in a microwave oven, and if a cut is made during cooking, it is possible to prevent the bag from bursting due to an increase in internal pressure.
即ち、この発明の自立袋は、流通、保管、調理に至るま
で、−貫して使用することができるので、取扱いに非常
に便利で手間が省け、同時に資源の節約にも役立つとい
う効果がある。In other words, the self-standing bag of the present invention can be used throughout the process, from distribution to storage to cooking, making it very convenient and time-saving to handle, and at the same time helping to conserve resources. .
第１図及び第２図は自立袋の側面シートの断面図、第３
図は同上の間欠的樹脂層のパターンを示す平面図、第４
図及び第５図は底面シートの断面図、第６図は同上の平
面図、第７図は自立袋の分解斜視図、第８図は同上の完
成平面図、第９図は同上の一部拡大側面図、第１Ｏ図は
金属薄膜層を剥離した自立袋の斜視図である。
１・・・・・・側面シート、２・・・・・・合成樹脂基
材、３・・・・・・熱融着層、４・・・・・・樹脂層、
５・・・・・・接着剤層、６・・・・・・金属薄膜層、
６′・・・・・・補強層、７・・・・・・表面保護層、
８、Ｓ・・・・・・熱封緘部、１０．１０′・・・・・
・底面シート、１１・・・・・・合成樹脂基材、１２・
・・・・・ガスバリヤ−層、１３・・・・・・熱融着層
、１４・・・・・・切欠き。
特許出願人 東洋アルミニウム株式会社同 代理人
鎌 １） 文 二
第６図
第７図
第８図Figures 1 and 2 are cross-sectional views of the side sheets of the self-supporting bag;
The figure is a plan view showing the pattern of the intermittent resin layer same as above,
Figures 5 and 5 are cross-sectional views of the bottom sheet, Figure 6 is a plan view of the same, Figure 7 is an exploded perspective view of the self-supporting bag, Figure 8 is a completed plan view of the same, and Figure 9 is a portion of the same. The enlarged side view, FIG. 1O, is a perspective view of the self-supporting bag with the metal thin film layer removed. 1... Side sheet, 2... Synthetic resin base material, 3... Heat fusion layer, 4... Resin layer,
5... Adhesive layer, 6... Metal thin film layer,
6'... Reinforcement layer, 7... Surface protective layer,
8, S... Heat sealing part, 10.10'...
・Bottom sheet, 11...Synthetic resin base material, 12.
... Gas barrier layer, 13 ... Heat fusion layer, 14 ... Notch. Patent applicant: Toyo Aluminum Co., Ltd. Agent
Sickle 1) Sentence 2 Figure 6 Figure 7 Figure 8
Claims (1)
それよりも接着強度の弱い樹脂層を介して金属薄膜層を
含むガスバリヤー層を積層し、このガスバリヤー層を合
成樹脂基材から手で剥離可能とした側面シートの前記内
面を重ね合せ、外面が熱融着可能で合成樹脂を主体とす
るガスバリヤー層を含み両端部に切欠が設けられた２つ
折りの底面シートを、重ね合せた側面シート内に挿入し
、側面シートの側縁部を熱封緘し、かつ底面シートの側
縁部及び下縁部と側面シートの内面とを熱封緘した自立
袋。A gas barrier layer including a metal thin film layer is laminated on the outer surface of a synthetic resin base material whose inner surface is heat-sealable via an adhesive layer and a resin layer with weaker adhesive strength, and this gas barrier layer is bonded to a synthetic resin base material. The inner surface of the side sheet that can be peeled off by hand from the material is superimposed, and the outer surface is heat-sealable and includes a gas barrier layer mainly made of synthetic resin, and a bifold bottom sheet is provided with notches at both ends. A self-supporting bag that is inserted into stacked side sheets, heat-seals the side edges of the side sheets, and heat-seals the side edges and lower edges of the bottom sheet and the inner surface of the side sheets.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61269404A JPS63125177A (en) | 1986-11-12 | 1986-11-12 | Self-sustaining bag |
| CA 523285 CA1281982C (en) | 1985-11-20 | 1986-11-18 | Laminated sheet material for use in the manufacture of containers and pouches |
| US06/932,429 US4756917A (en) | 1985-11-20 | 1986-11-19 | Packaging sheet and containers and pouches using the sheet |
| DE3689920T DE3689920T2 (en) | 1985-11-20 | 1986-11-20 | Packaging sheet and container and bag using the sheet. |
| EP19860116089 EP0223253B1 (en) | 1985-11-20 | 1986-11-20 | Packaging sheet and containers and pouches using the sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61269404A JPS63125177A (en) | 1986-11-12 | 1986-11-12 | Self-sustaining bag |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63125177A true JPS63125177A (en) | 1988-05-28 |
| JPH0349829B2 JPH0349829B2 (en) | 1991-07-30 |
Family
ID=17471940
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61269404A Granted JPS63125177A (en) | 1985-11-20 | 1986-11-12 | Self-sustaining bag |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63125177A (en) |
-
1986
- 1986-11-12 JP JP61269404A patent/JPS63125177A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0349829B2 (en) | 1991-07-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4848931A (en) | Packaging sheet and containers and pouches using the sheet | |
| CA1281982C (en) | Laminated sheet material for use in the manufacture of containers and pouches | |
| US5061500A (en) | Easy opening microwavable package | |
| JPH03502086A (en) | microwave interaction packaging | |
| JPH09286471A (en) | Packaging bag | |
| JP2938927B2 (en) | Combined package of molded container and bag | |
| JPS63125177A (en) | Self-sustaining bag | |
| JPH0520308B2 (en) | ||
| JPS6344449A (en) | Self-supported bag | |
| JP2017222371A (en) | Packaging bag for microwave heating | |
| JPS62251349A (en) | Self-supported bag | |
| JPS62146156A (en) | Self-supporting bag | |
| JPH0741927B2 (en) | Independent packaging bag | |
| JPS62251348A (en) | Bag having self-supporting property | |
| JPH0752058Y2 (en) | Retort food containers | |
| JPH0517235Y2 (en) | ||
| JPH0741926B2 (en) | Packaging bag | |
| JPS63162481A (en) | Packaging bag | |
| JP2003054650A (en) | Method of manufacturing packaging material for package to be heated in microwave oven | |
| JPH0624381Y2 (en) | Lid used for retort food containers | |
| JPS6228347A (en) | Packaging bag | |
| JPS6239473A (en) | Packaging bag | |
| JPH0684184B2 (en) | Airtight container for food | |
| JP2021176761A (en) | Pouch and use method of pouch | |
| JPH10123956A (en) | Sealing label and package with sealing label |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| EXPY | Cancellation because of completion of term |