JP2003072843A - Food packaging body using easily openable container made of synthetic resin - Google Patents
Food packaging body using easily openable container made of synthetic resinInfo
- Publication number
- JP2003072843A JP2003072843A JP2001263137A JP2001263137A JP2003072843A JP 2003072843 A JP2003072843 A JP 2003072843A JP 2001263137 A JP2001263137 A JP 2001263137A JP 2001263137 A JP2001263137 A JP 2001263137A JP 2003072843 A JP2003072843 A JP 2003072843A
- Authority
- JP
- Japan
- Prior art keywords
- flange
- container
- food
- synthetic resin
- opening
- 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
- 235000013305 food Nutrition 0.000 title claims abstract description 59
- 229920003002 synthetic resin Polymers 0.000 title claims abstract description 28
- 239000000057 synthetic resin Substances 0.000 title claims abstract description 28
- 238000004806 packaging method and process Methods 0.000 title abstract description 6
- 239000000463 material Substances 0.000 claims abstract description 37
- 230000002093 peripheral effect Effects 0.000 claims abstract description 20
- 238000007789 sealing Methods 0.000 claims description 34
- 239000000203 mixture Substances 0.000 claims description 2
- 229920005989 resin Polymers 0.000 claims 1
- 239000011347 resin Substances 0.000 claims 1
- 238000010438 heat treatment Methods 0.000 abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 238000001746 injection moulding Methods 0.000 description 5
- 238000000465 moulding Methods 0.000 description 5
- -1 polyethylene Polymers 0.000 description 4
- 239000007788 liquid Substances 0.000 description 3
- 235000021056 liquid food Nutrition 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 235000021055 solid food Nutrition 0.000 description 3
- 239000004698 Polyethylene Substances 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 230000001580 bacterial effect Effects 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 239000011888 foil Substances 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 102100022626 Glutamate receptor ionotropic, NMDA 2D Human genes 0.000 description 1
- 101000972840 Homo sapiens Glutamate receptor ionotropic, NMDA 2D Proteins 0.000 description 1
- 235000013351 cheese Nutrition 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 235000021485 packed food Nutrition 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、食品を充填して密
封した後にレトルト処理した食品包装体であって、 こ
の食品包装体に用いられている容器は、レトルト処理の
際には蓋材が剥離することなく強固に接着されている
が、食品を取り出す際には初期開封が容易で、かつフラ
ンジから蓋材を円滑に除去できるものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a food package that is retort-treated after filling and sealing food, and the container used in this food package has a lid material during retort treatment. Although it is firmly adhered without peeling, the initial opening is easy when taking out food, and the lid material can be smoothly removed from the flange.
【０００２】[0002]
【従来の技術】レトルト食品の容器として、合成樹脂製
や罐あるいはびん等の容器が使用されている。これらの
レトルト食品容器の中にあっても、合成樹脂製容器は、
比較的強度が高い上、軽量で安価であることから広範に
利用されている。しかし、レトルト処理中に加熱によっ
てフランジが歪んだり、変形して蓋材が剥離するといっ
た問題がある。このためフランジの幅を広くして上面全
周にわたって蓋材を固着することが一般的に行われてい
る。しかし、蓋材を幅広のフランジ上面全周にわたって
固着すると、開封して食品を取り出す際に蓋材の剥離に
相当の引っ張り力が要求され、容易に容器を開口できな
いといった問題がある。2. Description of the Related Art Containers made of synthetic resin, cans, bottles or the like are used as containers for retort foods. Even among these retort food containers, synthetic resin containers
It is widely used due to its relatively high strength, light weight and low cost. However, there is a problem that the flange is distorted or deformed due to heating during the retort process and the lid material is peeled off. For this reason, it is general practice to widen the width of the flange and fix the lid member around the entire upper surface. However, if the lid member is fixed to the entire upper surface of the wide flange, a considerable pulling force is required for peeling the lid member when opening and taking out the food, which causes a problem that the container cannot be easily opened.
【０００３】このようなことからレトルト用合成樹脂製
容器には、加熱耐性があって、施蓋した際には、密封性
が高いことが要求される一方、容器の開口に際しては、
容易に蓋材を除去できる易開封性の機能を備えているこ
とが必須である。この高い密封性に対して易開封性とい
う相反する機能を同時に付与する手段として、フランジ
上面に一定幅の環状凸状を設け、この複数の環状凸状に
蓋材を固着することが知られている。For this reason, the synthetic resin container for retort is required to have heat resistance and to have a high sealing property when the container is covered, while at the time of opening the container,
It is essential to have a function of easily opening the lid material that can be easily removed. As a means for simultaneously providing the contradictory function of easy opening with respect to the high sealing performance, it is known to provide an annular convex shape of a constant width on the upper surface of the flange and fix the lid member to the plural annular convex shapes. There is.
【０００４】フランジ上面に環状凸状を設けた容器とし
て、例えば実開昭６１−５６２６２号公報に記載された
容器がある。この容器は、フランジの一部に半径方向に
張り出す舌片を設けると共に、フランジ上面に同心であ
って環状の断面台形状の内側突状と断面山形の外側突状
とを形成し、該内側突状と外側突状とを上記舌片の中心
軸線を通り、半径方向に延びる連結部により接続し、上
記内側突状および外側突状上面に蓋材をヒートシールに
より溶着して開口部を密封する容器である。この容器の
ようにフランジ上面に環状凸状を設けて蓋材を溶着する
と、ヒートシールの際の歪みが環状凸状に吸収されて密
封性が向上し、開口に際しては、舌片上の蓋材を摘んで
引き剥がすと、内側突状と外側突状の舌片上の接続した
連結先端部から開口が始まり、容易に初期開封して蓋材
が取り除かれるといった効果を奏するものである。As a container having an annular convex shape on the upper surface of the flange, for example, there is a container described in Japanese Utility Model Laid-Open No. 61-56262. This container is provided with a tongue extending in a radial direction on a part of a flange, and is formed on the upper surface of the flange with a concentric annular protrusion having a trapezoidal cross section and an outward protrusion having a chevron cross section. The projecting shape and the outer projecting shape are connected by a connecting portion that extends in the radial direction through the central axis of the tongue, and the lid material is heat-sealed to the upper surface of the inner projecting shape and the outer projecting shape to seal the opening. It is a container. When the lid is welded by providing an annular convex shape on the upper surface of the flange like this container, the strain at the time of heat sealing is absorbed into the annular convex shape to improve the sealing property. When it is picked up and peeled off, an opening is started from the connected connecting tips on the tongue pieces of the inner projecting shape and the outer projecting shape, and there is an effect that the initial opening is easily performed and the lid material is removed.
【０００５】[0005]
【発明が解決しようとする課題】上記の容器のように、
フランジ上面に環状凸状を設けて蓋材を溶着すると、密
封性と同時に易開封性が付与できるため、レトルト用食
品容器としての機能が向上する。しかし、レトルト用食
品容器は、食品を充填して施蓋後に、熱水式レトルト殺
菌装置や蒸気式レトルト殺菌装置によって処理するため
に、次のような問題点にも考慮が払われていなければな
らない。すなわち、（１）レトルト処理中にフランジ上
面と蓋材裏面との間に熱水や水蒸気が入り込み、それが
冷却後水滴として残り、保存中や流通過程でかびの発生
や細菌の繁殖の原因にならない構造であること、（２）
レトルト処理をすると、蓋材の外周縁がカールや波状に
変形して外観上好ましくない形状になるため、カールや
変形等が防止されている構造であること、（３）蓋材の
シール強度は、過酷なレトルト処理に耐えることができ
る構造であること、等である。DISCLOSURE OF THE INVENTION Like the above container,
When an annular convex shape is provided on the upper surface of the flange and the lid member is welded, not only the sealing property but also the easy opening property can be provided, so that the function as the food container for retort is improved. However, the retort food container, after filling and lidding the food, in order to process by a hot water type retort sterilizer or steam type retort sterilizer, unless the following problems have been taken into consideration. I won't. That is, (1) Hot water or water vapor enters between the upper surface of the flange and the back surface of the lid during retort treatment, and remains as water droplets after cooling, which may cause mold and bacterial growth during storage and distribution. (2) that the structure does not become
When the retort treatment is performed, the outer peripheral edge of the lid material is deformed into a curl or a wavy shape, which is not desirable in appearance. Therefore, the structure is such that curling or deformation is prevented. (3) The sealing strength of the lid material is , A structure that can withstand severe retort processing, and the like.
【０００６】本発明は、上記のような要件を備えた合成
樹脂製容器によってレトルト食品を包装した包装体とす
ることに鑑みて創出したもので、その目的とするところ
は、レトルト食品を包装した包装体にあって、シール強
度とその密封性が高く、易開封性であって、同時に保存
中や流通過程でかびの発生や細菌の繁殖がなく、かつ外
観的にも好ましいものとすることにある。すなわち、レ
トルト用食品容器として必要かつ十分な機能を備えた易
開封性合成樹脂製容器を用いた食品包装体を提供するこ
とを課題とするものである。The present invention has been made in view of providing a package in which a retort food product is packaged in a synthetic resin container having the above-mentioned requirements. The object of the present invention is to package the retort food product. The packaging has high sealing strength and high sealing property, is easy to open, and at the same time is free from mold and bacterial growth during storage and distribution, and has a favorable appearance. is there. That is, it is an object of the present invention to provide a food package using an easily openable synthetic resin container having a necessary and sufficient function as a retort food container.
【０００７】[0007]
【課題を解決するための手段】上記の目的を達成し、課
題を解決するために、本発明の食品包装体にあっては、
フランジ上面に開封用把持部を有する蓋材が全面的にシ
ールされた容器であって、その蓋材の開封用把持部の位
置に、その幅内にあって任意の奥行で蓋材とフランジの
非シール部分を設けた容器を用いることによってレトル
ト食品包装体としての問題点の解決を図っている。In order to achieve the above objects and solve the problems, the food package of the present invention comprises:
A container in which a lid material having an opening gripping portion on the upper surface of the flange is entirely sealed, and the lid material and the flange are located at an arbitrary depth within the width at the position of the opening gripping portion of the lid material. By using a container provided with an unsealed portion, the problem as a retort food package is solved.
【０００８】すなわち、本発明の易開封性合成樹脂製容
器を用いた食品包装体は、上端開口周縁から外側に広が
るフランジを有する容器本体に食品が充填され、フラン
ジ上面にその周縁より外方に突出する開封用把持部を有
する蓋材が全面にシールされて密封された食品包装体で
あって、上記の蓋材の開封用把持部が位置するフランジ
上面の外周縁に、開封用把持部の幅内にして任意の奥行
で蓋材の非シール部分が設けられた構成をとっている。
また、本発明の易開封性合成樹脂製容器を用いた食品包
装体は、蓋材の非シール部分に合致する位置のフランジ
上面に、外周向きのシール突出部分を設けて、初期開封
を容易にした構成をとっている。さらに、本発明の易開
封性合成樹脂製容器を用いた食品包装体は、蓋材の非シ
ール部分が、フランジ上面に設けた凹状段差からなる構
成をとっている。That is, in the food package using the easily openable synthetic resin container of the present invention, the container main body having the flange extending outward from the peripheral edge of the upper opening is filled with the food, and the upper surface of the flange is outwardly of the peripheral edge. A lidding material having a protruding opening gripping portion is sealed and sealed on the entire surface, wherein the opening gripping portion of the lid material is provided on the outer peripheral edge of the flange upper surface where the opening gripping portion of the lid material is located. It has a structure in which the non-sealing portion of the lid member is provided at an arbitrary depth within the width.
Further, the food package using the easy-open synthetic resin container of the present invention, the upper surface of the flange at the position corresponding to the non-sealing portion of the lid material, by providing a seal protrusion portion of the outer peripheral direction, to facilitate the initial opening It has the same composition. Further, the food package using the easily openable synthetic resin container of the present invention has a structure in which the non-sealing portion of the lid member is formed of a concave step provided on the upper surface of the flange.
【０００９】[0009]
【発明の実施の形態】本発明の易開封性合成樹脂製容器
を用いた食品包装体は、容器本体に、液状又は固形状等
の食品を充填して施蓋後に、高圧下の熱湯槽中に一定時
間浸漬する熱水式や、加圧水蒸気と加圧空気の混合蒸気
を用いる蒸気式レトルト装置によって処理したレトルト
食品包装体である。容器としては、ポリエチレン、ポリ
プロピレン、ポリエステル等の合成樹脂によって、シー
ト成形又は射出成形によって成形される。容器開口上端
部の平面形状は、円形、角形、半円形、三角形等任意
で、外方に広がるフランジが全周又は部分的に形成され
ている。BEST MODE FOR CARRYING OUT THE INVENTION A food package using the easily-openable synthetic resin container of the present invention is a container body filled with a liquid or solid food product and covered, and then placed in a hot water tank under high pressure. It is a retort food package that is treated by a hot water type that is immersed for a certain period of time or a steam type retort device that uses a mixed vapor of pressurized steam and pressurized air. The container is formed from a synthetic resin such as polyethylene, polypropylene or polyester by sheet molding or injection molding. The planar shape of the upper end of the container opening may be circular, square, semicircular, triangular, or the like, and an outwardly extending flange is formed on the entire circumference or partially.
【００１０】本発明では、上記の容器本体に液状又は固
形状食品を充填後、フランジに蓋材を全面溶着して密封
する。蓋材は、合成樹脂製フイルムであっても、またア
ルミニウム箔に合成樹脂製フイルムを貼り合せて積層し
たものでもよく、ロール形式、又は枚葉形式が用いられ
る。蓋材の外形形状は容器のフランジの外周縁とほぼ一
致する大きさの形状とし、外周縁には蓋材を開封すると
きの把持部が周縁より外方に突出して設けられている。
このような蓋材をフランジ全面に溶着すると、熱水式又
は蒸気式のレトルト処理に際して、フランジが歪んだ
り、多少変形したとしても蓋材がそれによって剥離する
といった問題又は蓋材の外周縁がカールや波状に変形す
るといった問題は発生しない。In the present invention, the container body is filled with the liquid or solid food, and then the lid member is entirely welded to the flange to seal it. The lid material may be a synthetic resin film or may be a laminate of aluminum foil on which a synthetic resin film is laminated, and a roll type or a sheet type is used. The outer shape of the lid member has a size that substantially matches the outer peripheral edge of the flange of the container, and a grip portion for opening the lid member is provided on the outer peripheral edge so as to project outward from the peripheral edge.
If such a lid material is welded to the entire surface of the flange, during the hot water or steam retort treatment, the flange may be distorted or the lid material may peel off even if it is slightly deformed or the outer peripheral edge of the lid material is curled. It does not cause problems such as wavy deformation.
【００１１】しかし、容器の開口に当たって、特に初期
開封に相当の力が要求されるといった新たな問題が起こ
る。そのため本発明では、初期開封をできるだけ容易に
して蓋の剥離を簡単にすることをも目的に、蓋材の熱シ
ールに際して、蓋材の開封用把持部が位置するフランジ
上面の外周縁に、開封用把持部の幅内において任意の奥
行で蓋材の非シール部分を設けたものである。この非シ
ール部分は、シート成形の容器にあっては、ヒートシー
ラーの圧着面自体に凹状の段差を設けておいて、蓋材が
接着されないようにしてもよく、また射出成形の容器に
あっては、フランジ上面に予め厚みの差による凹状の段
差を設けておいて、ヒートシーラーの圧着によって蓋材
が凹状部分に接着されないようにしてもよい。However, a new problem arises in that the opening of the container requires a considerable amount of force, especially for initial opening. Therefore, in the present invention, for the purpose of facilitating the initial opening as much as possible and simplifying the peeling of the lid, at the time of heat-sealing the lid material, the lid material is opened at the outer peripheral edge of the flange upper surface where the opening gripping portion of the lid material is located. The non-sealing portion of the lid material is provided at an arbitrary depth within the width of the gripping portion. In the case of a sheet-molded container, this non-sealed portion may be provided with a concave step on the pressure-bonding surface itself of the heat sealer so that the lid member is not adhered. Alternatively, a concave step due to a difference in thickness may be provided in advance on the upper surface of the flange so that the lid member is not adhered to the concave portion by pressure bonding with a heat sealer.
【００１２】更に上記の蓋材の非シール部分に合致する
位置のフランジ上面に、外周向き（蓋材の把持部向き）
の矢印状のシール突起部分を設けて、初期開封を容易に
することもできる。この矢印状の突起は、ヒートシーラ
ーの圧着面自体に段差を設けたもので押圧形成されたも
のであってもよく、射出成形の容器のようにフランジ上
面に予め設けたものであってもよい。このような容器に
食品が充填されていて、レトルト処理された本発明の食
品包装体は、容器の開口に際して、蓋材の剥離、特に初
期開封が容易に行えるものである。Further, on the upper surface of the flange at a position corresponding to the non-sealing portion of the lid material, the outer peripheral direction (toward the grip portion of the lid material)
It is also possible to provide an arrow-shaped seal protrusion portion to facilitate initial opening. The arrow-shaped projection may be pressed and formed by providing a step on the pressure-bonding surface itself of the heat sealer, or may be previously provided on the upper surface of the flange like a container for injection molding. . The food package of the present invention in which such a container is filled with food and is subjected to retort treatment can easily peel off the lid material, particularly the initial opening, when the container is opened.
【００１３】[0013]
【実施例】以下、本発明の実施例を図面に基づいて説明
する。本発明の食品包装体（Ａ）は、容器（ａ）に対し
食品（ｂ）を充填し、これを蓋材（ｃ）で密封したもの
で、以下の説明は、合成樹脂製容器（ａ）についてであ
る。包装する食品（ｂ）としては、液状又は固形状等の
食品、例えばチーズ等が好適である。また、蓋材（ｃ）
としては、合成樹脂フイルム、又はアルミニウム箔と合
成樹脂フイルムとを貼り合わせた積層物であってもよ
い。Embodiments of the present invention will be described below with reference to the drawings. The food package (A) of the present invention is obtained by filling a container (a) with a food (b) and sealing the same with a lid member (c). The following description is made of a synthetic resin container (a). About. As the food (b) to be packaged, liquid or solid food such as cheese is suitable. Also, the lid material (c)
It may be a synthetic resin film or a laminate in which an aluminum foil and a synthetic resin film are bonded together.
【００１４】合成樹脂製容器（ａ）（以下容器（ａ）等
という）としては、ポリエチレン、ポリプロピレン、ポ
リエステル等の合成樹脂を、シート成形又は射出成形し
たものであり、図１〜図７に示すものは、シート成形に
より形成された容器（ａ）、（ａ'）に関するものであ
り、図８は射出成形により形成された容器（ａ"）に関
するものである。The synthetic resin container (a) (hereinafter referred to as the container (a) and the like) is a synthetic resin such as polyethylene, polypropylene, polyester or the like which is sheet-molded or injection-molded and is shown in FIGS. The present invention relates to the containers (a) and (a ′) formed by sheet molding, and FIG. 8 relates to the container (a ″) formed by injection molding.
【００１５】この容器（ａ）は、食品（ｂ）を充填する
容入部（１）を形成し、その上方の開口部（２）には、
その周縁に外方に向ってフランジ（３）が形成されてい
る。容入部（１）の底面（４）には、その中央より放射
方向に凹陥部（５）が形成されており、これにより底面
（４）の上下方向の変形を防いでいる。また、容入部
（１）の周壁（６）には、底面より同じ高さの位置に外
方に向かう複数の突起（７）が形成されているが、これ
は容器（ａ）を積み重ねたときのスタッキングリブの役
目をする。The container (a) forms a container (1) for filling the food (b), and an opening (2) above the container (a) has a container (1).
A flange (3) is formed on the peripheral edge of the flange outwardly. A concave portion (5) is formed on the bottom surface (4) of the receiving portion (1) in the radial direction from the center thereof, thereby preventing the bottom surface (4) from being deformed in the vertical direction. Further, a plurality of outwardly projecting protrusions (7) are formed on the peripheral wall (6) of the receiving portion (1) at the same height as the bottom surface, but this is when the containers (a) are stacked. Acts as a stacking rib for.
【００１６】この容器（ａ）に食品（ｂ）を充填した後
に、合成樹脂フイルムの蓋材（ｃ）を溶着して密封す
る。この蓋材（ｃ）には、蓋材（ｃ）を容器（ａ）より
剥離して開封するための把持部（８）が突出形成されて
いる。この密封された食品包装体（Ａ）は、その使用時
において、開封が容易になるように、把持部（８）の幅
内におけるフランジ（３）側において、溶着部すなわち
内側のシール部（１０）に対し、外側に把持部（８）の
周幅に相当する長さの非シール部（９）を設けることに
よって解決を図っている。After filling the container (a) with the food (b), a lid member (c) of a synthetic resin film is welded and hermetically sealed. The lid member (c) is formed with a gripping portion (8) for protruding the lid member (c) from the container (a) and opening the protrusion. This sealed food package (A) has a welded portion, that is, an inner seal portion (10) on the side of the flange (3) within the width of the gripping portion (8) so that it can be easily opened during use. In order to solve the above problem, a non-sealing portion (9) having a length corresponding to the circumferential width of the gripping portion (8) is provided on the outside.
【００１７】開封し易くするために、具体的には、図６
に示すように、容器（ａ）のフランジ（３）の外径が９
６ｍｍでフランジ（３）の幅が５．０ｍｍである場合、
非シール部（９）を１．５ｍｍ幅とすればよく、さらに
図７に示すように、上記の非シール部（９）の円周方向
の長さの中央、すなわち把持部（８）の中心に対応する
位置に、シール部（１０）よりシール突出部（１１）を
形成することにより、一層開封し易くなる。In order to make it easy to open, specifically, FIG.
, The outer diameter of the flange (3) of the container (a) is 9
6 mm and the width of the flange (3) is 5.0 mm,
The non-sealing portion (9) may have a width of 1.5 mm, and as shown in FIG. 7, the center of the circumferential length of the non-sealing portion (9), that is, the center of the gripping portion (8). By forming the seal protruding portion (11) from the seal portion (10) at a position corresponding to, it becomes easier to open the seal.
【００１８】このように、フランジ（３）面にシール部
（１０）、非シール部（９）を形成するには、フランジ
（３）面に載せた蓋材（ｃ）に対し、例えば図５に示す
ようなヒートシーラー（Ｂ）の押圧下面の形状がシール
部（１０）、非シール部（９）を形成するものを用いれ
ばよい。As described above, in order to form the sealing portion (10) and the non-sealing portion (9) on the surface of the flange (3), for example, as shown in FIG. The shape of the pressing lower surface of the heat sealer (B) as shown in (3) may form the sealed portion (10) and the non-sealed portion (9).
【００１９】以上のようなフランジ（３）面に対して蓋
材（ｃ）をシールした食品包装体（Ａ）は、これより蓋
材（ｃ）を剥離開封するには、図６に示すものにおいて
は、把持部（８）を摘んで引っ張ると、その引っ張り力
は非シール部（９）の両端の（イ）、（イ）の点に集中
し、この両端部分より剥離されて開封される。図７に示
すものにあっては、非シール部（９）の中央に突出され
ているシール部（１０）の突出部（１１）に引っ張り力
が集中され、ここから剥離が始まり、次に両端（イ）、
（イ）に引っ張り力が集中されるから、結局３点より剥
離することにより、容易に開封される。The food package (A) in which the lid material (c) is sealed to the surface of the flange (3) as described above is shown in FIG. 6 in order to peel and open the lid material (c) from the food packaging body (A). In (1), when the gripping portion (8) is picked up and pulled, the pulling force concentrates on the points (a) and (a) at both ends of the non-sealing portion (9) and is peeled off and opened from the both end portions. . In the structure shown in FIG. 7, the pulling force is concentrated on the protruding portion (11) of the seal portion (10) protruding in the center of the non-sealing portion (9), the peeling starts from here, and then both ends are separated. (I),
Since the pulling force is concentrated on (a), it is easily opened by peeling from three points.
【００２０】図４に示すものは、蓋材（ｃ'）を容器
（ａ'）のフランジ（３'）に対してヒートシーラー
（Ｂ'）にてシールする従来のものであり、（Ａ'）は食
品包装体、（ｂ'）は食品である。図５に示すものは、
蓋材（ｃ）に対してヒートシーラー（Ｂ）にてシールす
る本願発明のものである。図５に示すヒートシーラー
（Ｂ）は、そのシール型部（１２）に突出型部（１
３）、（１３）、（１３）があり、これによって蓋材
（ｃ）に対するシール部（１０）には、複数のシール突
出部（１１）、（１１）、（１１）が形成される。The one shown in FIG. 4 is a conventional one in which the lid member (c ') is sealed to the flange (3') of the container (a ') by a heat sealer (B'). ) Is a food package, and (b ') is a food. The one shown in FIG.
The present invention seals the lid member (c) with the heat sealer (B). The heat sealer (B) shown in FIG. 5 has a protruding mold part (1
3), (13), (13), and thereby, a plurality of seal protrusions (11), (11), (11) are formed in the seal portion (10) for the lid member (c).
【００２１】以上説明したヒートシーラー（Ｂ）によっ
て蓋材（ｃ）をシールする容器（ａ）は、合成樹脂のシ
ート成形によるものであるが、以下に説明する図８に示
す容器（ａ"）は、合成樹脂の射出成形によるもので、
容器（ａ"）は射出成形されるところから、フランジ
（３"）における上面が、シール部（１０"）より非シー
ル部（９"）の方が低くなるように成形の際に予め凹状
の段差をつけて形成されている。このようなフランジ
（３"）上に、蓋材（ｃ"）を載せ、下面が平らなリング
状のヒートシーラーで押圧するか、ローラー状のヒート
シーラーを転動することによってシールする。The container (a) for sealing the lid member (c) by the heat sealer (B) described above is formed by synthetic resin sheet molding, but the container (a ") shown in FIG. 8 described below. Is by injection molding of synthetic resin,
Since the container (a ") is injection-molded, the upper surface of the flange (3") is pre-concave when molding so that the non-sealing portion (9 ") is lower than the sealing portion (10"). It is formed with steps. The lid member (c ") is placed on the flange (3") and pressed by a ring-shaped heat sealer having a flat lower surface, or by rolling a roller-shaped heat sealer for sealing.
【００２２】[0022]
【発明の効果】本発明は、その対象物が食品包装体であ
るところから、合成樹脂製の成形容器、食品、蓋材をそ
の構成とし、食品を容器に充填してシール包装するに当
たり、フランジと蓋材とのシールにおいて、そのシール
が易開封性にしてレトルト加熱処理に耐えられるように
蓋材の開封用把持部の幅内のフランジ外周縁に、非シー
ル部を形成したものであるから、レトルト加熱処理され
た状態の食品包装体が容易に得られ、非シール部を設け
てあることにより、開封に当たっては、開封用把持部と
重なった部分のフランジが持ち上がることなく、この部
分より剥離開封を容易に行うことができる。Industrial Applicability The present invention has a synthetic resin molded container, a food, and a lid member as its constituents since the object is a food package, and a flange is provided when the food is filled in the container and sealed. In the seal between the lid material and the lid material, a non-sealing portion is formed on the outer peripheral edge of the flange within the width of the opening grip portion of the lid material so that the seal can be easily opened and can withstand the retort heat treatment. , The food package in the retort-heated state can be easily obtained, and the non-sealing part is provided, so when opening, the flange of the part that overlaps the opening gripping part does not lift and peels from this part. It can be easily opened.
【００２３】また、フランジ上面に対して蓋材をほぼ全
面シールしているために、レトルト処理中の加熱によっ
ても蓋材がカールすることがない。しかし、非シール部
に外周縁に向かって突状のシール部を設けたから、開封
に当たっては、開封力がこの突状のシール部に集中し開
封が極めて容易である。さらに、このような食品包装体
は、その容器として、合成樹脂のシート成形の他に、合
成樹脂の射出成形によっても、フランジ上面に予めシー
ル部、非シール部を段差にて形成することができる。Further, since the lid member is almost entirely sealed to the upper surface of the flange, the lid member does not curl due to heating during the retort process. However, since the non-sealed portion is provided with the protruding seal portion toward the outer peripheral edge, upon opening, the unsealing force is concentrated on the protruding seal portion, and the opening is extremely easy. Further, in such a food package, as a container thereof, a sealing portion and a non-sealing portion can be formed in advance on the upper surface of the flange by steps other than the synthetic resin sheet molding and the synthetic resin injection molding. .
【図１】本発明の食品包装体の斜視図FIG. 1 is a perspective view of a food package of the present invention.
【図２】シート成形した容器の斜視図FIG. 2 is a perspective view of a sheet-formed container.
【図３】食品包装体において、蓋材の開封状態を示す斜
視図FIG. 3 is a perspective view showing an opened state of a lid member in a food package.
【図４】従来の食品包装体とヒートシーラーとの関係を
示す斜視図FIG. 4 is a perspective view showing a relationship between a conventional food package and a heat sealer.
【図５】本発明の食品包装体とヒートシーラーとの関係
を示す斜視図FIG. 5 is a perspective view showing the relationship between the food package of the present invention and a heat sealer.
【図６】本発明の食品包装体の平面図FIG. 6 is a plan view of the food package of the present invention.
【図７】図６の食品包装体と非シール部の形状を異にす
る食品包装体の平面図FIG. 7 is a plan view of a food package having a shape different from that of the food package of FIG.
【図８】射出成形容器を利用した蓋材の開封状態を示す
食品包装体の斜視図FIG. 8 is a perspective view of a food package showing an opened state of a lid member using an injection molded container.
Ａ 食品包装体 Ｂ ヒートシーラー ａ 容器 ｂ 食品 ｃ 蓋材 １ 容入部 ２ 開口部 ３ フランジ ４ 底面 ５ 凹陥部 ６ 周壁 ７ 突起 ８ 把持部 ９ 非シール部 １０ シール部 １１ シール突出部 １２ シール型部 １３ 突出型部 A food packaging B heat sealer a container b food c Lid material 1 receiving department 2 openings 3 flange 4 bottom 5 recess 6 peripheral walls 7 protrusions 8 grip 9 Non-sealed part 10 Seal part 11 Seal protrusion 12 Seal type part 13 Projection type part
───────────────────────────────────────────────────── フロントページの続き Ｆターム(参考） 3E067 AA04 AA11 AB01 AC01 BA10A BB14A BC02A BC07A CA17 CA24 EA06 EA11 EA32 EB11 EB23 EB27 FA01 FB13 FC01 GC02 4B021 LA05 LA25 LP10 MQ05 4B035 LE11 LP01 LP44 LP45 LT16 ─────────────────────────────────────────────────── ─── Continued front page F term (reference) 3E067 AA04 AA11 AB01 AC01 BA10A BB14A BC02A BC07A CA17 CA24 EA06 EA11 EA32 EB11 EB23 EB27 FA01 FB13 FC01 GC02 4B021 LA05 LA25 LP10 MQ05 4B035 LE11 LP01 LP44 LP45 LT16
Claims (3)
有する容器本体に食品が充填され、フランジ上面にその
周縁より外方に突出する開封用把持部を有する蓋材が全
面にシールされて密封された食品包装体において、蓋材
の開封用把持部が位置するフランジ上面の外周縁に、開
封用把持部の幅内にして任意の奥行で蓋材に非シール部
分を設けてシールしたことを特徴とする易開封性合成樹
脂製容器を用いた食品包装体。1. A container main body having a flange extending outward from a peripheral edge of an upper end opening is filled with food, and a lid member having an opening gripping portion projecting outwardly from the peripheral edge is sealed on the entire upper surface of the flange. In the food package, the lid material is sealed by providing a non-sealing portion at an arbitrary depth within the width of the opening gripping portion on the outer peripheral edge of the flange where the opening gripping portion of the lid material is located. A food package using a container made of an easily openable synthetic resin.
ンジ上面に、外周向きのシール突出部分を設けて、初期
開封を容易にしたことを特徴とする請求項１記載の易開
封性合成樹脂製容器を用いた食品包装体。2. The easy-open synthetic composition according to claim 1, wherein a seal protruding portion facing the outer periphery is provided on the upper surface of the flange at a position corresponding to the non-sealing portion of the lid member to facilitate the initial opening. A food package using a resin container.
凹状段差からなることを特徴とする請求項１又は請求項
２記載の易開封性合成樹脂製容器を用いた食品包装体。3. The food package using the easily openable synthetic resin container according to claim 1 or 2, wherein the non-sealing portion of the lid member comprises a concave step on the upper surface of the flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001263137A JP4920148B2 (en) | 2001-08-31 | 2001-08-31 | Food packaging using an easily openable synthetic resin container |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001263137A JP4920148B2 (en) | 2001-08-31 | 2001-08-31 | Food packaging using an easily openable synthetic resin container |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2003072843A true JP2003072843A (en) | 2003-03-12 |
| JP4920148B2 JP4920148B2 (en) | 2012-04-18 |
Family
ID=19089934
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001263137A Expired - Fee Related JP4920148B2 (en) | 2001-08-31 | 2001-08-31 | Food packaging using an easily openable synthetic resin container |
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| Country | Link |
|---|---|
| JP (1) | JP4920148B2 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55115974A (en) * | 1979-02-28 | 1980-09-06 | Sumitomo Metal Ind Ltd | Cold rolled steel plate of superior chemical-conversion treatability |
| JPS63102674A (en) * | 1987-05-27 | 1988-05-07 | Kyowa Hakko Kogyo Co Ltd | Novel microbial strain, bacillus aminogenes |
-
2001
- 2001-08-31 JP JP2001263137A patent/JP4920148B2/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55115974A (en) * | 1979-02-28 | 1980-09-06 | Sumitomo Metal Ind Ltd | Cold rolled steel plate of superior chemical-conversion treatability |
| JPS63102674A (en) * | 1987-05-27 | 1988-05-07 | Kyowa Hakko Kogyo Co Ltd | Novel microbial strain, bacillus aminogenes |
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| Publication number | Publication date |
|---|---|
| JP4920148B2 (en) | 2012-04-18 |
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