JP4571110B2 - Food packaging materials such as sandwiches - Google Patents

Food packaging materials such as sandwiches Download PDF

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JP4571110B2
JP4571110B2 JP2006284079A JP2006284079A JP4571110B2 JP 4571110 B2 JP4571110 B2 JP 4571110B2 JP 2006284079 A JP2006284079 A JP 2006284079A JP 2006284079 A JP2006284079 A JP 2006284079A JP 4571110 B2 JP4571110 B2 JP 4571110B2
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克巳 渡辺
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Description

本発明は、三角形状（直角三角形が多い）をなす食品類、例えば、サンドイッチ、調理パン、カステラ、菓子パン等を容易に取り出すことができるように包装するためのサンドイッチ等の食品包装材に関する。   The present invention relates to a food packaging material such as a sandwich for packaging foods having a triangular shape (many right-angled triangles), for example, sandwiches, cooking breads, castellas, confectionery breads and the like so that they can be easily taken out.

サンドイッチ等の食品包装袋は、例えば、図６に示すように、平面視略台形状をなす表シート１と裏シート２からなり、これらを重ね合わせてその斜辺部４をシール（溶断シール）し、下辺部５は、食品（図示省略）を内部に収納できるように開放状態とされ、かつ、その裏シート２の内側には、開封用のカットテープ６が貼着されている。その裏シート２は、ヘッド部９まで延びたカットテープ６の上端を囲むように、開封端７で半円弧状乃至は逆Ｕ字状等にカットされるため、その下方が中間シール部８によってシールされることで、下辺部５を封緘した際には、食品収納部が密封状態に保持されるように構成される（例えば、特許文献１〜３参照）。なお、上辺部３はシールされることもある。   For example, as shown in FIG. 6, a food packaging bag such as a sandwich is composed of a front sheet 1 and a back sheet 2 having a substantially trapezoidal shape in plan view, and these are overlapped to seal the oblique side portion 4 (melting seal). The lower side 5 is opened so that food (not shown) can be stored therein, and an opening cut tape 6 is attached to the inside of the back sheet 2. The back sheet 2 is cut into a semicircular arc shape or an inverted U shape at the opening end 7 so as to surround the upper end of the cutting tape 6 extending to the head portion 9. By sealing, when the lower side part 5 is sealed, it is comprised so that a food storage part may be hold | maintained in a sealed state (for example, refer patent documents 1-3). In addition, the upper side part 3 may be sealed.

このように構成される食品包装袋は、内部に食品を収納して下辺部５が封緘された状態でスーパーやコンビニ等に搬入され店頭に陳列される。そして、消費者によって購入された後、食品を食する際には、一方の手で表シート１側又は上辺部３あたりを持ち、他方の手で開封端７を持って下方に引っ張ることで、そのカットテープ６の両側に沿って引き裂き、裏シート２を左右に分割した状態に開封して、食品を取り出すことができる。   The food packaging bag configured as described above is carried into a supermarket, a convenience store, or the like with food stored therein and the lower side 5 sealed, and displayed at a store. And after eating by a consumer, when eating food, it has the front sheet 1 side or the upper side 3 area with one hand, and pulls downward with the open end 7 with the other hand, The food can be taken out by tearing along both sides of the cut tape 6 and opening the back sheet 2 in a state divided into left and right.

実開平７−４３４９号公報Japanese Utility Model Publication No. 7-4349 登録実用新案第３０７２０２８号公報Registered Utility Model No. 3072028 特開２００３−１６０１４２号公報JP 2003-160142 A

上述のような従来のサンドイッチ等の食品包装材では、開封時には、通常は、前述したように、開封端７からカットテープ６の両側に沿って裏シート２が引き裂かれるが、開封端７の引っ張り具合によっては、裏シート２の引き裂き方向が中間シール部８から横方向にずれ込み、カットテープ６から外れた方向に引き裂かれてしまうような事態が発生する。このような場合には、食品が型崩れしたり、食品を取り出せなくなったり、食品の一部を取り落して衣服を汚したりするようなトラブルが発生することが懸念される。   In the conventional food packaging material such as the sandwich as described above, at the time of opening, the back sheet 2 is usually torn along the both sides of the cut tape 6 from the opening end 7 as described above. Depending on the condition, the tearing direction of the back sheet 2 may be shifted laterally from the intermediate seal portion 8 and torn away from the cut tape 6. In such a case, there is a concern that the food may be out of shape, the food cannot be taken out, or a trouble may occur such as removing a part of the food and soiling the clothes.

本発明は、このような実情に鑑みてなされ、常に良好な開封状態が得られる開封作業性のよいサンドイッチ等の食品包装材を提供することを目的とする。   This invention is made | formed in view of such a situation, and it aims at providing food packaging materials, such as a sandwich with good opening workability | operativity in which a favorable open state is always obtained.

（１）本発明のサンドイッチ等の食品包装材は、例えば図１（ａ）（ｂ）に示すように、表シート１と裏シート２を重ね合わせ、その両シート１，２の両側辺部４，４をシールして下辺部５を開放し、該開放された下辺部５から食品を内部に収納した後、前記下辺部５が封緘されるようにしたサンドイッチ等の食品包装材において、
前記裏シート２の内面には、破断用の内シートＳが重ね合わされ、該内シートＳと前記表シート１と裏シート２は、前記上辺部３の下方の位置に左右方向に設定される中間シール部８でヒートシールされると共に、前記裏シート２を前記内シートＳと共に上下方向に切り裂くための起点となる開封端７が、前記中間シール部８よりも上方の部位に形成され、かつ、前記開封端７の両下端に対応する上開き状のノッチＮ，Ｎが前記内シートＳの前記中間シール部８以上の部位に切り込み形成されることを特徴とする。 (1) As shown in FIGS. 1 (a) and 1 (b), for example, as shown in FIGS. In a food packaging material such as a sandwich in which the lower side 5 is sealed after the lower side 5 is sealed and the food is stored inside from the opened lower side 5.
An inner sheet S for breaking is overlaid on the inner surface of the back sheet 2, and the inner sheet S, the front sheet 1, and the back sheet 2 are set at a position below the upper side portion 3 in the left-right direction. An opening end 7 serving as a starting point for tearing the back sheet 2 together with the inner sheet S in a vertical direction is formed at a position above the intermediate seal part 8 while being heat sealed by the seal part 8; and The upper opening notches N and N corresponding to both lower ends of the unsealing end 7 are cut and formed in a portion of the inner sheet S that is not lower than the intermediate seal portion 8.

このような構成によれば、開封端７の下端に対応する上開き状のノッチＮ，Ｎの上開き幅を充分に設定しておくことによって、開封時に、開封端７を引っ張ると、開封端７の下端から生じる亀裂を上開き状のノッチＮ，Ｎに確実に導入することができ、そのノッチＮ，Ｎに対応する箇所の中間シール部８を破断して、内シートＳと共に裏シート２を開封性よく破断することができる。また、製作誤差等によって、ノッチＮ，Ｎに対する開封端７の対応位置が多少ずれるようなことがあっても、開封端７の両下端から生じる亀裂を確実にノッチＮ，Ｎ内にそれぞれ導入することができ、常に良好な開封性を確保することができる。   According to such a configuration, when the opening end 7 is pulled at the time of opening by sufficiently setting the upper opening width of the upper opening notches N and N corresponding to the lower end of the opening end 7, 7 can be surely introduced into the upper notches N and N, and the intermediate seal portion 8 at the portion corresponding to the notches N and N is broken to form the back sheet 2 together with the inner sheet S. Can be broken with good openability. Even if the corresponding position of the unsealed end 7 with respect to the notches N and N is slightly shifted due to manufacturing errors, cracks generated from both lower ends of the unsealed end 7 are surely introduced into the notches N and N, respectively. Can always ensure good opening.

（２）前記開封端７は、前記裏シート２を前記内シートＳと共に半円弧状乃至は逆Ｕ字状に切り込んで形成されてもよい。 (2) The unsealing end 7 may be formed by cutting the back sheet 2 together with the inner sheet S into a semicircular arc shape or an inverted U shape.

（３）前記開封端７は、前記裏シート２と内シートＳの上辺部３を切り込み形成した一対の切り込みＫ，Ｋの間に形成されてもよい。 (3) The unsealing end 7 may be formed between a pair of cuts K, K formed by cutting the upper side 3 of the back sheet 2 and the inner sheet S.

（４）前記内シートＳは上下方向に延伸されたフィルムからなるものであってもよい。このようにすれば、ノッチＮ，Ｎに対応する箇所で破断された中間シール部８から、内シートＳを下方に向けて容易に切り裂くことができ、開封性が向上する。 (4) The inner sheet S may be made of a film stretched in the vertical direction. If it does in this way, the inner sheet | seat S can be easily torn down from the intermediate seal part 8 fractured | ruptured in the location corresponding to notch N and N, and unsealing property will improve.

（５）前記ノッチＮ，Ｎの下端が、前記中間シール部８に近接した状態に臨むようにしてもよい。このようにすれば、ノッチＮ，Ｎの下端に近接する箇所の中間シール部８を確実に破断することができるため、中間シール部８の切断位置が（横方向に）ずれないようにすることができる。 (5) The lower ends of the notches N, N may face the intermediate seal portion 8. In this way, the intermediate seal portion 8 at a location close to the lower ends of the notches N and N can be reliably broken, so that the cutting position of the intermediate seal portion 8 does not shift (laterally). Can do.

（６）前記ノッチＮ，Ｎの下端の一部が、前記中間シール部８の一部に進入していてもよい。このようにすれば、中間シール部８に進入したノッチＮ，Ｎの下端から中間シール部８が確実に切断されるので、ノッチＮ，Ｎからの切断位置がずれるのをより効果的に防ぐことができる。 (6) A part of the lower ends of the notches N and N may enter a part of the intermediate seal portion 8. In this way, since the intermediate seal portion 8 is reliably cut from the lower ends of the notches N and N that have entered the intermediate seal portion 8, it is possible to more effectively prevent the cutting position from the notches N and N from shifting. Can do.

（７）前記内シートＳの上下方向の両側及び中央部には、例えば図４（ａ）（ｂ）に示すように、前記裏シート２に対してヒートシールされるシールラインＬ１，Ｌ２，Ｌ３が形成され、該シールラインＬ１，Ｌ２間及びＬ２，Ｌ３間の内シートＳには、上下方向の分割予定線Ｄ１，Ｄ２が形成され、該分割予定線Ｄ１，Ｄ２の上端が、前記ノッチＮ，Ｎの下端に対応するようにしてもよい。このようにすれば、シールラインＬ１，Ｌ２間、Ｌ２，Ｌ３間の上下方向の分割予定線Ｄ１，Ｄ２に沿って内シートＳと共に裏シート２を切り裂くことができるが、たとえ、ノッチＮ，Ｎからの切断位置が、分割予定線Ｄ１，Ｄ２から多少ずれたとしても、シールラインＬ１，Ｌ２間、Ｌ２，Ｌ３間内で内シートＳと裏シート２を切り裂くことができ（亀裂をシールラインＬ１とＬ３の間に納めることができ）、亀裂のずれ込みを防止することができる。 (7) Seal lines L1, L2, L3 heat-sealed with respect to the back sheet 2, as shown in FIGS. 4 (a) and 4 (b), for example, on both sides and the center of the inner sheet S in the vertical direction. Are formed on the inner sheet S between the seal lines L1 and L2 and between the L2 and L3, and the upper and lower division planned lines D1 and D2 are formed. , N may correspond to the lower end. In this way, the back sheet 2 can be torn along with the inner sheet S along the vertical dividing lines D1 and D2 between the seal lines L1 and L2 and between L2 and L3. The inner sheet S and the back sheet 2 can be torn between the seal lines L1 and L2 and between L2 and L3 even if the cutting position from is slightly deviated from the dividing lines D1 and D2. And L3) to prevent cracks from shifting.

（８）前記ノッチＮ，Ｎの下端が、前記分割予定線Ｄ１，Ｄ２の上端に連続していてもよい。このようにすれば、ノッチＮ，Ｎの形成と分割予定線Ｄ１，Ｄ２の形成を一工程で行うことができるため、製作工程を簡略化することができる。また、ノッチＮ，Ｎの下端から分割予定線Ｄ１，Ｄ２に連続的に亀裂を伝達することができるため、開封性がさらに向上する。 (8) The lower ends of the notches N and N may be continuous with the upper ends of the planned dividing lines D1 and D2. In this way, the formation of the notches N and N and the formation of the dividing lines D1 and D2 can be performed in one process, so that the manufacturing process can be simplified. Further, since the crack can be continuously transmitted from the lower ends of the notches N, N to the division lines D1, D2, the unsealing property is further improved.

（９）例えば図５（ａ）（ｂ）に示すように、前記ノッチＮ，Ｎの下端に対応する前記内シートＳの上下方向に分割予定線Ｄ４，Ｄ５が形成され、該分割予定線Ｄ４，Ｄ５よりも外側位置における裏シート２の上下方向に横ずれ防止線Ｄ６，Ｄ７が形成され、隣り合う前記分割予定線Ｄ４と横ずれ防止線Ｄ６及び分割予定線Ｄ５と横ずれ防止線Ｄ７をそれぞれ含む上下方向のシールラインＬ４，Ｌ５によって前記内シートＳと裏シート２がヒートシールされるようにしてもよい。このようにすれば、シールラインＬ４，Ｌ５によって、内シートＳと裏シート２にそれぞれ形成される分割予定線Ｄ４と横ずれ防止線Ｄ６及び分割予定線Ｄ５と横ずれ防止線Ｄ７がそれぞれシールされ、食品包装材のシール性が確保される。そして、開封時には、ノッチＮ，Ｎからの亀裂が分割予定線Ｄ４，Ｄ５からずれるようなことがあっても横ずれ防止線Ｄ６，Ｄ７よりも外側にずれるのが防止される（亀裂が横ずれ防止線Ｄ６，Ｄ７よりも内側に納まる）ため、体裁よく開封することができる。 (9) For example, as shown in FIGS. 5 (a) and 5 (b), division lines D4 and D5 are formed in the vertical direction of the inner sheet S corresponding to the lower ends of the notches N and N, and the division line D4. , D5 are formed in the vertical direction of the back sheet 2 at positions outside of D5, D5, D7, and D7. The vertical shift lines D4 and D6 are adjacent to each other and include the planned split lines D6 and D5 and the horizontal shift prevention lines D7. The inner sheet S and the back sheet 2 may be heat-sealed by the direction seal lines L4 and L5. By doing so, the division lines D4 and the lateral deviation prevention lines D6 and the division division lines D5 and the lateral deviation prevention lines D7 respectively formed on the inner sheet S and the back sheet 2 are sealed by the seal lines L4 and L5, respectively. The sealing property of the packaging material is ensured. At the time of opening, even if the cracks from the notches N and N are displaced from the planned dividing lines D4 and D5, the lateral displacement prevention lines D6 and D7 are prevented from being displaced outward (the cracks are prevented from lateral displacement). It fits inside than D6 and D7), so it can be opened well.

（１０）前記ノッチＮ，Ｎの下端が、前記分割予定線Ｄ４，Ｄ５の上端に連続していてもよい。このようにすれば、ノッチＮ，Ｎの形成と分割予定線Ｄ４，Ｄ５の形成を一工程で行うことができるため、製作工程を簡略化することができる。また、ノッチＮ，Ｎの下端から分割予定線Ｄ４，Ｄ５に連続的に亀裂を伝達することができるため、開封性がさらに向上する。 (10) The lower ends of the notches N and N may be continuous with the upper ends of the planned dividing lines D4 and D5. In this way, the formation of the notches N and N and the formation of the division lines D4 and D5 can be performed in one process, so that the manufacturing process can be simplified. Moreover, since the crack can be continuously transmitted from the lower ends of the notches N and N to the division lines D4 and D5, the unsealing property is further improved.

（１１）前記内シートＳに形成される分割予定線Ｄ１，Ｄ２又はＤ４，Ｄ５は、切断又は焼き切りであってもよい。このように、予め分割予定線Ｄ１，Ｄ２又はＤ４，Ｄ５を全通状態に切り通しておけば、開封時に、より確実に分割予定線Ｄ１，Ｄ２又はＤ４，Ｄ５で分割することができ、開封性が向上する。 (11) The planned dividing lines D1, D2 or D4, D5 formed on the inner sheet S may be cut or burned out. In this way, if the planned dividing lines D1, D2 or D4, D5 are cut through all the states in advance, it can be divided more reliably at the planned dividing lines D1, D2 or D4, D5 at the time of opening, Will improve.

（１２）前記内シートＳに形成される分割予定線Ｄ１，Ｄ２，Ｄ４，Ｄ５又は前記裏シート２に形成される横ずれ防止線Ｄ６，Ｄ７は、ハーフカットであってもよい。 (12) Half-cut may be sufficient as the division | segmentation planned lines D1, D2, D4, D5 formed in the said inner sheet | seat S, or the lateral slip prevention lines D6, D7 formed in the said back sheet | seat 2. FIG.

（１３）前記内シートＳに形成される分割予定線Ｄ１，Ｄ２，Ｄ４，Ｄ５又は前記裏シート２に形成される横ずれ防止線Ｄ６，Ｄ７は、ミシン目であってもよい。 (13) The split lines D1, D2, D4, D5 formed on the inner sheet S or the lateral shift prevention lines D6, D7 formed on the back sheet 2 may be perforated.

（１４）前記内シートＳに形成される分割予定線Ｄ１，Ｄ２，Ｄ４，Ｄ５又は前記裏シート２に形成される横ずれ防止線Ｄ６，Ｄ７は、ミシン目状の焼き切りであってもよい。 (14) The planned dividing lines D1, D2, D4, D5 formed on the inner sheet S or the lateral shift prevention lines D6, D7 formed on the back sheet 2 may be perforated burnouts.

本発明のサンドイッチ等の食品包装材は、半円弧状乃至は略逆Ｕ字状の開封端の下端に対応する上開き状のノッチの上開き幅を充分に設定しておくことによって、開封時に、開封端を引っ張ると、開封端の下端から生じる亀裂をノッチに確実に導入することができ、そのノッチに対応する箇所の中間シール部を破断して、内シートと共に裏シートを開封性よく破断することができる。また、製作誤差等によって、ノッチに対する開封端の対応位置が多少ずれるようなことがあっても、内開封端の両下端から生じる亀裂を確実にノッチ内にそれぞれ導入することができ、常に良好な開封性を確保することができる。   The food wrapping material such as the sandwich of the present invention can be opened at the time of opening by sufficiently setting the upper opening width of the upper opening notch corresponding to the lower end of the opening end of the semicircular arc shape or substantially inverted U shape. When the unsealed end is pulled, a crack generated from the lower end of the unsealed end can be surely introduced into the notch, and the intermediate seal portion corresponding to the notch is broken to break the back sheet together with the inner sheet with good openability. can do. Even if the corresponding position of the unsealed end with respect to the notch may be slightly shifted due to manufacturing errors, cracks generated from both lower ends of the inner unsealed end can be surely introduced into the notch, respectively. Openability can be secured.

以下に、本発明の最良の実施の形態に係るサンドイッチ等の食品包装材について図面を参照しつつ詳細に説明する。   Hereinafter, a food packaging material such as a sandwich according to the best embodiment of the present invention will be described in detail with reference to the drawings.

〔実施の形態１〕
図１（ａ）はサンドイッチ等の食品包装材の背面図、（ｂ）はその断面図、図２（ａ）は前方側から見た食品袋の斜視図、（ｂ）は背面側から見た食品袋の斜視図である。これらの図に示すように、この食品包装材は、表シート１と裏シート２を重ね合わせ、その両シート１，２の上辺部３及び両側辺部４，４をヒートシール（例えば溶断シール）によってシールして下辺部５を開放し、該開放された下辺部５からサンドイッチ等の食品（図示省略）を内部に収納した後、下辺部５を封緘するようにしたものである。なお、上辺部３はヒートシールされる場合とされない場合がある。 [Embodiment 1]
Fig. 1 (a) is a rear view of a food packaging material such as a sandwich, (b) is a sectional view thereof, Fig. 2 (a) is a perspective view of a food bag as seen from the front side, and (b) is seen from the back side. It is a perspective view of a food bag. As shown in these drawings, the food packaging material is such that the front sheet 1 and the back sheet 2 are overlapped, and the upper side 3 and both side parts 4 and 4 of both sheets 1 and 2 are heat sealed (for example, fusing seal). The lower side 5 is opened by sealing with, and after the food (not shown) such as a sandwich is stored in the opened lower side 5, the lower side 5 is sealed. The upper side 3 may or may not be heat sealed.

裏シート２の内面には、上下方向に延伸されたフィルムからなる破断用の内シートＳが重ね合わされ、その内シートＳと表シート１と裏シート２は、上辺部３の下方の位置に左右方向に設定される中間シール部８でヒートシールされると共に、裏シート２を内シートＳと共に上下方向に切り裂くための起点となる開封端７が、中間シール部８と上辺部３の間のヘッド部９に略逆Ｕ字状（又は半円弧状）等に切り込み形成されており、かつ、その開封端７の両下端に対応する上開き状（例えば略Ｖ字状又は略Ｕ字状）のノッチＮ，Ｎが内シートＳの中間シール部８に近接する部位に切り込み形成されている。そして、内シートＳの上下方向の両側及び中央部には、前記裏シート２に対してヒートシールされる３本のシールラインＬ１，Ｌ２，Ｌ３が内シートＳの上下両端に至るまで形成され、上述のノッチＮ，Ｎの下端が、シールラインＬ１，Ｌ２間及びＬ２，Ｌ３間に対応している。   On the inner surface of the back sheet 2, a breaking inner sheet S made of a film stretched in the vertical direction is superimposed, and the inner sheet S, the front sheet 1, and the back sheet 2 are positioned at positions below the upper side portion 3. The unsealed end 7 serving as a starting point for tearing the back sheet 2 together with the inner sheet S in the vertical direction is heat-sealed by the intermediate seal part 8 set in the direction, and the head between the intermediate seal part 8 and the upper side part 3 The portion 9 is cut into a substantially inverted U shape (or a semicircular arc shape) or the like, and has an upper opening shape (for example, a substantially V shape or a substantially U shape) corresponding to both lower ends of the opening end 7. The notches N and N are cut and formed in a portion of the inner sheet S adjacent to the intermediate seal portion 8. And, on both sides and the central portion of the inner sheet S in the vertical direction, three seal lines L1, L2, L3 that are heat sealed to the back sheet 2 are formed up to the upper and lower ends of the inner sheet S, The lower ends of the notches N and N described above correspond to between the seal lines L1 and L2 and between L2 and L3.

このような構成によれば、半円弧状乃至は略逆Ｕ字状の開封端７の下端に対応する上開き状のノッチＮ，Ｎの上開き幅を充分に設定しておくことによって、開封時に開封端７を引っ張ると、その下端から生じる亀裂を上開き状のノッチＮ，Ｎに確実に導入することができるため、そのノッチＮ，Ｎに対応する箇所の中間シール部８を破断してシールラインＬ１，Ｌ２間とＬ２，Ｌ３間で、上下方向に延伸されたフィルムからなる内シートＳと共に裏シート２を開封性よく確実に破断することができる。そのノッチＮ，Ｎの上開き幅については、開封端７の製作誤差による位置ずれ等を勘案して充分な幅に設定するのが好ましい。また、このようなシールラインＬ１，Ｌ２，Ｌ３を形成することによって、食品袋の背面側の保形剛性が向上するため、食品袋が型崩れしにくくなる。また、内シートＳを中間シール部８よりも上方の開封端７まで延長しているため、ヘッド９の保形剛性が向上しその部分が撓みにくくなる。なお、ノッチＮ，Ｎの下端が、前記中間シール部８に近接した状態に臨むようにしてもよく、下端の一部が、中間シール部８の一部に進入していてもよい。   According to such a configuration, the upper opening width of the upper opening notches N and N corresponding to the lower end of the semicircular arc-shaped or substantially inverted U-shaped opening end 7 is set sufficiently to open the opening. When the opening end 7 is sometimes pulled, a crack generated from the lower end can be surely introduced into the upper opening notches N and N. Therefore, the intermediate seal portion 8 at a location corresponding to the notches N and N is broken. Between the seal lines L1 and L2 and between L2 and L3, the back sheet 2 can be reliably broken together with the inner sheet S made of a film stretched in the vertical direction with good openability. The upper opening width of the notches N and N is preferably set to a sufficient width in consideration of misalignment due to manufacturing errors of the unsealing end 7. Further, by forming such seal lines L1, L2, and L3, the shape retention rigidity on the back side of the food bag is improved, so that the food bag is less likely to lose its shape. Further, since the inner sheet S is extended to the unsealing end 7 above the intermediate seal portion 8, the shape retention rigidity of the head 9 is improved, and the portion is hardly bent. Note that the lower ends of the notches N and N may face the intermediate seal portion 8, and a part of the lower end may enter a part of the intermediate seal portion 8.

図３（ａ）（ｂ）は開封時の開口幅を広くしてサンドイッチ等の食品を取り出しやすくした例を示し、図３（ａ）では、中間シール部８のシールラインＬ１，Ｌ３間の上縁部（上半部）をギザギザ状に形成すると共に、シールラインＬ２を幅広に形成し、かつ、そのシールラインＬ２を跨ぐように、開封端７も幅広に形成し、その両端下端を、中間シール部８のギザギザ状の部分の最外側に対応させて形成した上開き状のノッチＮ，Ｎに臨ませている。このような構成によれば、開封時には、幅広に形成したシールラインＬ２を含めて、広い開口幅を確保できるため、食品を取り出しやすくなる。また、中間シール部８の上縁部がギザギザ状に形成されているため、シールラインＬ２を幅広に形成しても容易に破断することができ、開封性が良好となる。なお、上辺部３はヒートシールされてもよく、されなくてもよい。   3 (a) and 3 (b) show examples in which the opening width at the time of opening is widened so that foods such as sandwiches can be easily taken out. In FIG. 3 (a), the upper part between the seal lines L1 and L3 of the intermediate seal portion 8 is shown. The edge (upper half) is formed in a jagged shape, the seal line L2 is formed wide, and the open end 7 is also formed wide so as to straddle the seal line L2. It faces upper notches N, N formed corresponding to the outermost side of the jagged portion of the seal portion 8. According to such a configuration, at the time of opening, since a wide opening width can be ensured including the wide seal line L2, food can be easily taken out. Moreover, since the upper edge part of the intermediate | middle seal part 8 is formed in the jagged shape, even if it forms the seal line L2 wide, it can be fractured | ruptured easily and openability becomes favorable. Note that the upper side 3 may or may not be heat-sealed.

図３（ｂ）では、上辺部３をヒートシールすることなく、内シートＳと裏シート２のシールラインＬ２を跨ぐ位置に、一対の切り込みＫ，Ｋを形成し、その切り込みＫ，Ｋ間に開封端７を形成し、その下端を、中間シール部８のギザギザ状の部分の最外側に対応させて形成した上開き状のノッチＮ，Ｎに臨ませている。このように構成しても、開封時には、幅広に形成したシールラインＬ２を含めた広い開口幅を確保できるため、食品を取り出しやすくなる。また、中間シール部８の上縁部がギザギザ状に形成されているため、シールラインＬ２を幅広に形成しても容易に破断することができ、開封性が良好となる。   In FIG. 3 (b), a pair of cuts K and K are formed at a position straddling the seal line L2 between the inner sheet S and the back sheet 2 without heat-sealing the upper side 3 and between the cuts K and K. An open end 7 is formed, and a lower end thereof faces upper notches N and N formed corresponding to the outermost side of the jagged portion of the intermediate seal portion 8. Even if comprised in this way, at the time of opening, since wide opening width including the sealing line L2 formed wide can be ensured, it becomes easy to take out food. Moreover, since the upper edge part of the intermediate | middle seal part 8 is formed in the jagged shape, even if it forms the seal line L2 wide, it can be fractured | ruptured easily and openability becomes favorable.

〔実施の形態２〕
図４（ａ）は食品包装材の背面図、（ｂ）はその断面図で、これらの図に示すように、この食品包装材は、内シートＳの上下方向の両側及び中央部には、裏シート２に対してヒートシールされるシールラインＬ１，Ｌ２，Ｌ３が形成され、該シールラインＬ１，Ｌ２間及びＬ２，Ｌ３間の内シートＳには、上下方向の分割予定線Ｄ１，Ｄ２が形成され、該分割予定線Ｄ１，Ｄ２の上端がノッチＮ，Ｎの下端に対応している。なお、ノッチＮ，Ｎの下端を分割予定線Ｄ１，Ｄ２の上端と連続させて同一工程で一体的に形成すれば開封性をより一層向上することができる。 [Embodiment 2]
4A is a rear view of the food packaging material, and FIG. 4B is a cross-sectional view thereof. As shown in these drawings, the food packaging material is provided on both sides in the vertical direction of the inner sheet S and the central portion thereof. Seal lines L1, L2, L3 that are heat-sealed with respect to the back sheet 2 are formed, and in the inner sheet S between the seal lines L1, L2 and between the L2, L3, vertical division lines D1, D2 are formed. The upper ends of the planned dividing lines D1, D2 correspond to the lower ends of the notches N, N. If the lower ends of the notches N and N are made continuous with the upper ends of the division lines D1 and D2 and formed integrally in the same process, the unsealing property can be further improved.

その分割予定線Ｄ１，Ｄ２は、切断工具による切断や加熱工具による焼き切りによって全通状態に切り通すのが好ましい。このようにすれば、開封時に、より確実に分割予定線Ｄ１，Ｄ２で分割することができ、開封性が向上する。また、ミシン目やハーフカット、ミシン目状の焼き切り等により断続的に切断してもよい。そして、この実施の形態では、内シートＳの上端と下端が折り返されており、これにより、上述のように分割予定線Ｄ１，Ｄ２を形成しても、製作工程において内シートＳの端縁が捲くれにくくなり作業性が向上する。なお、このように内シートＳに上下方向の分割予定線Ｄ１，Ｄ２を形成する場合には、内シートＳの素材は二軸延伸フィルムであってもよい。   The planned dividing lines D1 and D2 are preferably cut through the entire state by cutting with a cutting tool or baking with a heating tool. If it does in this way, at the time of opening, it can divide | segment by the division | segmentation planned lines D1 and D2 more reliably, and unsealing property improves. Moreover, you may cut | disconnect intermittently by a perforation, a half cut, a perforation-like burn-out, etc. In this embodiment, the upper end and the lower end of the inner sheet S are folded back. As a result, even if the planned dividing lines D1 and D2 are formed as described above, the edge of the inner sheet S is formed in the manufacturing process. Workability is improved because it is difficult to burn. In addition, when forming the division | segmentation line D1, D2 of an up-down direction in the inner sheet S in this way, a biaxially stretched film may be sufficient as the raw material of the inner sheet S.

このような構成によれば、シールラインＬ１，Ｌ２間、Ｌ２，Ｌ３間の上下方向の分割予定線Ｄ１，Ｄ２に沿って内シートＳと共に裏シート２を切り裂くことができるが、たとえ中間シール部８の切断位置が、分割予定線Ｄ１，Ｄ２から（横方向に）多少ずれたとしても、シールラインＬ１，Ｌ２間及びＬ２，Ｌ３間で内シートＳと裏シート２を切り裂くことができるため、切り裂き方向の横ずれを防止することができる。なお、この場合にも、食品袋の背面側の保形剛性が向上するため、食品袋が型崩れしにくくなる。また、中間シール部８よりも上方の開封端７まで延長した内シートＳの上端と下端が折り返されているため、ヘッド部９の保形剛性が向上しその部分が撓みにくくなり起立状態が保持されるため見映えが向上する。   According to such a configuration, the back sheet 2 can be torn together with the inner sheet S along the vertical dividing lines D1 and D2 between the seal lines L1 and L2 and between L2 and L3. Even if the cutting position of 8 is slightly deviated from the planned dividing lines D1, D2 (laterally), the inner sheet S and the back sheet 2 can be torn between the seal lines L1, L2 and between L2, L3. A lateral shift in the direction of tearing can be prevented. In this case as well, the shape retention rigidity on the back side of the food bag is improved, so that the food bag is less likely to lose its shape. Further, since the upper and lower ends of the inner sheet S extended to the unsealing end 7 above the intermediate seal portion 8 are folded back, the shape retaining rigidity of the head portion 9 is improved, and the portion is difficult to bend and the upright state is maintained. This improves the appearance.

〔実施の形態３〕
図５（ａ）は食品包装材の背面図、（ｂ）はその断面図、図６（ａ）は前方側から見た食品袋の斜視図、（ｂ）は背面側から見た食品袋の斜視図である。これらの図に示すように、この食品包装材は、ノッチＮ，Ｎの下端に対応する内シートＳの上下方向に分割予定線Ｄ４，Ｄ５が形成され、該分割予定線Ｄ４，Ｄ５よりも外側の裏シート２の上下方向に横ずれ防止線Ｄ６，Ｄ７が形成され、これら隣り合う分割予定線Ｄ４と横ずれ防止線Ｄ６及び分割予定線Ｄ５と横ずれ防止線Ｄ７をそれぞれ含む上下方向のシールラインＬ４，Ｌ５によって前記内シートＳと裏シート２がヒートシールされる。なお、この場合においても、ノッチＮ，Ｎの下端を分割予定線Ｄ４，Ｄ５の上端と連続させて同一工程で一体的に形成してもよい。また、分割予定線Ｄ４，Ｄ５は、前実施の形態と同様に、切断工具による切断や加熱工具による焼き切りによって全通状態に切り通してもよく、また、ミシン目やハーフカット、ミシン目状の焼き切り等により断続的に切断してもよい。 [Embodiment 3]
5A is a rear view of the food packaging material, FIG. 5B is a cross-sectional view thereof, FIG. 6A is a perspective view of the food bag viewed from the front side, and FIG. 5B is a view of the food bag viewed from the rear side. It is a perspective view. As shown in these drawings, the food packaging material has split planned lines D4 and D5 formed in the vertical direction of the inner sheet S corresponding to the lower ends of the notches N and N, and is outside the planned split lines D4 and D5. The lateral slip prevention lines D6 and D7 are formed in the vertical direction of the back sheet 2 of the sheet, and the vertical seal lines L4 and 4 each include the planned division line D4 and lateral deviation prevention line D6 and the planned division line D5 and lateral deviation prevention line D7, respectively. The inner sheet S and the back sheet 2 are heat sealed by L5. In this case as well, the lower ends of the notches N and N may be formed integrally with the upper ends of the planned dividing lines D4 and D5 in the same process. Similarly to the previous embodiment, the division lines D4 and D5 may be cut through the entire state by cutting with a cutting tool or by burning with a heating tool, and perforations, half cuts, or perforated cuts. You may cut | disconnect intermittently by etc.

このような構成によれば、シールラインＬ４，Ｌ５によって、内シートＳと裏シート２にそれぞれ形成されるミシン目やミシン目状の焼き切り等の分割予定線Ｄ４と横ずれ防止線Ｄ６及び分割予定線Ｄ５と横ずれ防止線Ｄ７がシールされる。そして、開封時には、ノッチＮ，Ｎからの亀裂が分割予定線Ｄ４，Ｄ５から横に多少ずれるようなことがあっても横ずれ防止線Ｄ６，Ｄ７よりも外側にずれるのが防止される（開封時の亀裂が横ずれ防止線Ｄ６，Ｄ７よりも内側に納まる）ため、体裁よく開封することができる。また、本実施の形態においても、中間シール部８よりも上方の開封端７まで延長した内シートＳの上端と下端が折り返されているため、ヘッド部９の保形剛性が向上しその部分が撓みにくくなり起立状態が保持され見映えが向上する。なお、分割予定線Ｄ４，Ｄ５及び横ずれ防止線Ｄ６，Ｄ７はハーフカットであってもよい。   According to such a configuration, the division lines D4, the lateral displacement prevention lines D6, and the division lines that are formed on the inner sheet S and the back sheet 2 by the seal lines L4 and L5, such as perforations and perforated burnouts, respectively. D5 and the lateral shift prevention line D7 are sealed. At the time of opening, even if the cracks from the notches N and N are slightly shifted laterally from the planned dividing lines D4 and D5, they are prevented from being shifted outward from the lateral shift prevention lines D6 and D7 (when opened). Can be opened with good appearance. Also in the present embodiment, since the upper end and the lower end of the inner sheet S extended to the open end 7 above the intermediate seal portion 8 are folded back, the shape retention rigidity of the head portion 9 is improved and the portion is It becomes difficult to bend and the standing state is maintained, and the appearance is improved. The planned dividing lines D4 and D5 and the lateral shift prevention lines D6 and D7 may be half cut.

なお、本発明のサンドイッチ等の食品包装材は、実施の形態に限定されることなく、発明の要旨を逸脱しない限りにおいて、適宜必要に応じて、設計変更や改良等は自由であり、各実施の形態間での構成の組み合わせも自由である。例えば、内シートＳに形成されるノッチＮ，Ｎは、上開き状であればよく形状の如何は問わない。また、表シート１と裏シート２は、単一のシート材で形成されてもよく、複数のシート材を繋ぎ合わせてもよく貼り合わせてもよい。また、シールラインＬ１，Ｌ２，Ｌ３は必ずしも必須ではなく、例えば内シートＳに分割予定線Ｄ１，Ｄ２を形成する場合等には省略してもよい。また、シールラインＬ１，Ｌ２，Ｌ３は、必ずしも内シートＳの上下両端まで延びている必要はなく上下両端の近くまで延びていればよい。   It should be noted that the food packaging material such as the sandwich of the present invention is not limited to the embodiment, and can be freely changed in design or improved as necessary without departing from the gist of the invention. Combinations of configurations between these forms are also free. For example, the notches N and N formed on the inner sheet S may be any shape as long as they are open upward. Moreover, the front sheet | seat 1 and the back sheet | seat 2 may be formed with a single sheet | seat material, and a several sheet | seat material may be connected and may be bonded together. Further, the seal lines L1, L2, and L3 are not necessarily required, and may be omitted when the planned dividing lines D1 and D2 are formed on the inner sheet S, for example. Further, the seal lines L1, L2, and L3 do not necessarily need to extend to the upper and lower ends of the inner sheet S, and may be extended to the vicinity of the upper and lower ends.

また、中間シール部８の上縁部は、図３（ａ）（ｂ）に示すギザギザ状に代えて凹凸状や波形状等に形成されてもよい。開封端７を切り込みＫ，Ｋの間に形成する構成は、全ての実施の形態に適用できるが、その場合、表シート１と裏シート２の上辺部３はヒートシールすることなく、裏シート２と内シートＳにのみ切り込みＫ，Ｋを形成すればよい。また、本発明は、食品包装材の製造方法を特定するものではなく、結果として得られる食品包装材が実施の形態等に記載されたように構成されればよい。また、内部に収納する食品は、サンドイッチに限らず、調理パン、カステラ、菓子パン等のその他の食品であってもよい。   Further, the upper edge portion of the intermediate seal portion 8 may be formed in a concavo-convex shape, a wave shape or the like instead of the jagged shape shown in FIGS. The configuration in which the opening end 7 is formed between the cuts K and K can be applied to all the embodiments. In this case, the upper side 3 of the front sheet 1 and the back sheet 2 is not heat-sealed, and the back sheet 2 The cuts K and K may be formed only in the inner sheet S. In addition, the present invention does not specify a method for producing a food packaging material, and the resulting food packaging material may be configured as described in the embodiment and the like. The food stored inside is not limited to sandwiches, but may be other foods such as cooking bread, castella, and sweet bread.

（ａ）は本発明の実施の形態１に係るサンドイッチ等の食品包装材の背面図、（ｂ）はその断面図である。(A) is a rear view of food packaging materials, such as a sandwich, concerning Embodiment 1 of the present invention, and (b) is the sectional view. （ａ）は同前方側から見た食品袋の斜視図、（ｂ）は同背面側から見た食品袋の斜視図である。(A) is the perspective view of the food bag seen from the front side, (b) is the perspective view of the food bag seen from the back side. （ａ）は同異なるサンドイッチ等の食品包装材の背面図、（ｂ）は同別のサンドイッチ等の食品包装材の背面図である。(A) is a rear view of food packaging materials, such as the same sandwich, and (b) is a rear view of food packaging materials, such as another sandwich. （ａ）は本発明の実施の形態２に係るサンドイッチ等の食品包装材の背面図、（ｂ）はその断面図である。(A) is a rear view of food packaging materials, such as a sandwich, concerning Embodiment 2 of the present invention, and (b) is the sectional view. （ａ）は本発明の実施の形態３に係るサンドイッチ等の食品包装材の背面図、（ｂ）はその断面図である。(A) is a rear view of food packaging materials, such as a sandwich, concerning Embodiment 3 of the present invention, and (b) is the sectional view. （ａ）は同前方側から見た食品袋の斜視図、（ｂ）は同背面側から見た食品袋の斜視図である。(A) is the perspective view of the food bag seen from the front side, (b) is the perspective view of the food bag seen from the back side. 従来の食品包装袋の平面図である。It is a top view of the conventional food packaging bag.

符号の説明Explanation of symbols

１…表シート、２…裏シート、３…上辺部、４…側辺部、５…下辺部、Ｓ…内シート、７…開封端、８…中間シール部８、Ｎ…ノッチ、Ｌ１，Ｌ２，Ｌ３，Ｌ４，Ｌ５…シールライン、Ｄ１，Ｄ２，Ｄ４，Ｄ５…分割予定線、Ｄ６，Ｄ７…横ずれ防止線   DESCRIPTION OF SYMBOLS 1 ... Front sheet, 2 ... Back sheet, 3 ... Upper edge part, 4 ... Side edge part, 5 ... Lower edge part, S ... Inner sheet, 7 ... Open end, 8 ... Middle seal part 8, N ... Notch, L1, L2 , L3, L4, L5 ... Seal line, D1, D2, D4, D5 ... Divided lines, D6, D7 ... Side shift prevention lines

Claims (14)

表シート（１）と裏シート（２）を重ね合わせ、その両シート（１）（２）の両側辺部（４）（４）をシールして下辺部（５）を開放し、該開放された下辺部（５）から食品を内部に収納した後、前記下辺部（５）が封緘されるようにしたサンドイッチ等の食品包装材において、
前記裏シート（２）の内面には、破断用の内シート（Ｓ）が重ね合わされ、該内シート（Ｓ）と前記表シート（１）と裏シート（２）は、前記上辺部（３）の下方の位置に左右方向に設定される中間シール部（８）でヒートシールされると共に、前記裏シート（２）を前記内シート（Ｓ）と共に上下方向に切り裂くための起点となる開封端（７）が、前記中間シール部（８）よりも上方の部位に形成され、かつ、前記開封端（７）の両下端に対応する上開き状のノッチ（Ｎ）（Ｎ）が前記内シート（Ｓ）の前記中間シール部（８）以上の部位に切り込み形成されることを特徴とするサンドイッチ等の食品包装材。 The front sheet (1) and the back sheet (2) are overlapped, both side parts (4) and (4) of both sheets (1) and (2) are sealed, the lower side part (5) is opened, and the opening is released. In a food packaging material such as a sandwich in which the lower side (5) is sealed after storing food from the lower side (5) inside,
The inner sheet (S) for breaking is overlaid on the inner surface of the back sheet (2), and the inner sheet (S), the front sheet (1), and the back sheet (2) are formed on the upper side (3). And an intermediate sealing portion (8) set in the left-right direction at a lower position of the sheet, and an opening end (starting point for tearing the back sheet (2) together with the inner sheet (S) in the vertical direction ( 7) is formed at a position above the intermediate seal portion (8), and upper open notches (N) (N) corresponding to both lower ends of the opened end (7) are formed on the inner sheet (7). A food packaging material such as a sandwich, which is cut and formed in a portion of the intermediate seal portion (8) above S). 前記開封端（７）は、前記裏シート（２）を前記内シート（Ｓ）と共に半円弧状乃至は逆Ｕ字状に切り込んで形成されることを特徴とする請求項１に記載のサンドイッチ等の食品包装材。 The sandwich or the like according to claim 1, wherein the unsealing end (7) is formed by cutting the back sheet (2) into a semicircular arc shape or an inverted U shape together with the inner sheet (S). Food packaging material. 前記開封端（７）は、前記裏シート（２）と内シート（Ｓ）の上辺部（３）を切り込み形成した一対の切り込み（Ｋ）（Ｋ）の間に形成されることを特徴とする請求項１に記載のサンドイッチ等の食品包装材。 The opening end (7) is formed between a pair of cuts (K) (K) formed by cutting the upper side (3) of the back sheet (2) and the inner sheet (S). A food packaging material such as a sandwich according to claim 1. 前記内シート（Ｓ）は上下方向に延伸されたフィルムからなることを特徴とする請求項１乃至３の何れかに記載のサンドイッチ等の食品包装材。 The said inner sheet (S) consists of a film extended | stretched to the up-down direction, Food packaging materials, such as a sandwich, in any one of Claim 1 thru | or 3. 前記ノッチ（Ｎ）（Ｎ）の下端が、前記中間シール部（８）に近接した状態に臨むことを特徴とする請求項１乃至４の何れかに記載のサンドイッチ等の食品包装材。 The food packaging material such as a sandwich according to any one of claims 1 to 4, wherein a lower end of the notch (N) (N) faces a state of being close to the intermediate seal portion (8). 前記ノッチ（Ｎ）（Ｎ）の下端の一部が、前記中間シール部（８）の一部に進入していることを特徴とする請求項１乃至４の何れかに記載のサンドイッチ等の食品包装材。 The food such as a sandwich according to any one of claims 1 to 4, wherein a part of a lower end of the notch (N) (N) enters a part of the intermediate seal part (8). Packaging material. 前記内シート（Ｓ）の上下方向の両側及び中央部には、前記裏シート（２）に対してヒートシールされるシールライン（Ｌ１）（Ｌ２）（Ｌ３）が形成され、該シールライン間（Ｌ１）（Ｌ２），（Ｌ２）（Ｌ３）の内シート（Ｓ）には、上下方向の分割予定線（Ｄ１）（Ｄ２）が形成され、該分割予定線（Ｄ１）（Ｄ２）の上端が、前記ノッチ（Ｎ）（Ｎ）の下端に対応することを特徴とする請求項１乃至６の何れかに記載のサンドイッチ等の食品包装材。 Seal lines (L1), (L2), and (L3) that are heat-sealed with respect to the back sheet (2) are formed on both sides and the center of the inner sheet (S) in the vertical direction. In the inner sheet (S) of (L1), (L2), (L2), and (L3), a vertical division line (D1) (D2) is formed, and the upper end of the division line (D1) (D2) is The food packaging material for sandwiches and the like according to any one of claims 1 to 6, wherein the food packaging material corresponds to the lower ends of the notches (N) and (N). 前記ノッチ（Ｎ）（Ｎ）の下端が、前記分割予定線（Ｄ１）（Ｄ２）の上端に連続していることを特徴とする請求項７に記載のサンドイッチ等の食品包装材。 The food packaging material for sandwiches or the like according to claim 7, wherein the lower ends of the notches (N) (N) are continuous with the upper ends of the planned dividing lines (D1) (D2). 前記ノッチ（Ｎ）（Ｎ）の下端に対応する前記内シート（Ｓ）の上下方向に分割予定線（Ｄ４）（Ｄ５）が形成され、該分割予定線（Ｄ４）（Ｄ５）よりも外側位置における裏シート（２）の上下方向に横ずれ防止線（Ｄ６）（Ｄ７）が形成され、隣り合う前記分割予定線（Ｄ４）と横ずれ防止線（Ｄ６）及び分割予定線（Ｄ５）と横ずれ防止線（Ｄ７）をそれぞれ含む上下方向のシールライン（Ｌ４）（Ｌ５）によって前記内シート（Ｓ）と裏シート（２）がヒートシールされることを特徴とする請求項１乃至６の何れかに記載のサンドイッチ等の食品包装材。 Divided planned lines (D4) and (D5) are formed in the vertical direction of the inner sheet (S) corresponding to the lower ends of the notches (N) and (N), and are located outside the planned divided lines (D4) and (D5). The lateral slip prevention lines (D6) and (D7) are formed in the up and down direction of the back sheet (2) in FIG. 5, and the adjacent division planned line (D4), lateral deviation prevention line (D6), division planned line (D5), and lateral deviation prevention line The inner sheet (S) and the back sheet (2) are heat-sealed by vertical seal lines (L4) (L5) each including (D7). Food packaging materials such as sandwiches. 前記ノッチ（Ｎ）（Ｎ）の下端が、前記分割予定線（Ｄ４）（Ｄ５）の上端に連続していることを特徴とする請求項９に記載のサンドイッチ等の食品包装材。 The food packaging material for sandwiches or the like according to claim 9, wherein the lower ends of the notches (N) (N) are continuous with the upper ends of the planned dividing lines (D4) (D5). 前記内シート（Ｓ）に形成される分割予定線（Ｄ１）（Ｄ２）又は（Ｄ４）（Ｄ５）は、切断又は焼き切りであることを特徴とする請求項７乃至１０の何れかに記載のサンドイッチ等の食品包装材。 11. The sandwich according to any one of claims 7 to 10, wherein the planned dividing line (D1) (D2) or (D4) (D5) formed on the inner sheet (S) is cut or burned out. Food packaging materials such as. 前記内シート（Ｓ）に形成される分割予定線（Ｄ１）（Ｄ２）（Ｄ４）（Ｄ５）又は前記裏シート（２）に形成される横ずれ防止線（Ｄ６）（Ｄ７）は、ハーフカットであることを特徴とする請求項７乃至１１の何れかに記載のサンドイッチ等の食品包装材。 The planned dividing lines (D1), (D2), (D4), (D5) formed on the inner sheet (S) or the lateral deviation prevention lines (D6) (D7) formed on the back sheet (2) are half cut. A food packaging material such as a sandwich according to any one of claims 7 to 11, wherein the food packaging material is provided. 前記内シート（Ｓ）に形成される分割予定線（Ｄ１）（Ｄ２）（Ｄ４）（Ｄ５）又は前記裏シート（２）に形成される横ずれ防止線（Ｄ６）（Ｄ７）は、ミシン目であることを特徴とする請求項７乃至１１の何れかに記載のサンドイッチ等の食品包装材。 The planned dividing lines (D1), (D2), (D4), (D5) formed on the inner sheet (S) or the lateral slip prevention lines (D6) (D7) formed on the back sheet (2) are perforated. A food packaging material such as a sandwich according to any one of claims 7 to 11, wherein the food packaging material is provided. 前記内シート（Ｓ）に形成される分割予定線（Ｄ１）（Ｄ２）（Ｄ４）（Ｄ５）又は前記裏シート（２）に形成される横ずれ防止線（Ｄ６）（Ｄ７）は、ミシン目状の焼き切りであることを特徴とする請求項７乃至１１の何れかに記載のサンドイッチ等の食品包装材。 The planned dividing lines (D1), (D2), (D4), (D5) formed on the inner sheet (S) or the lateral slip prevention lines (D6) (D7) formed on the back sheet (2) are perforated. The food packaging material for sandwiches and the like according to any one of claims 7 to 11, wherein
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JP7101049B2 (en) * 2018-06-06 2022-07-14 朋和産業株式会社 Food packaging bag
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US20220315288A1 (en) * 2019-02-12 2022-10-06 Howa Sangyo Co., Ltd. Food Packaging Material and Food Package
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