JP2010030627A - Packaging bag body - Google Patents

Packaging bag body Download PDF

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JP2010030627A
JP2010030627A JP2008193723A JP2008193723A JP2010030627A JP 2010030627 A JP2010030627 A JP 2010030627A JP 2008193723 A JP2008193723 A JP 2008193723A JP 2008193723 A JP2008193723 A JP 2008193723A JP 2010030627 A JP2010030627 A JP 2010030627A
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bag body
film
packaging bag
edge
seal portion
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Toshiaki Matsuda
田 稔 明 松
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HOKUSHIN SHOJI KK
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HOKUSHIN SHOJI KK
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a packaging bag body which is opened by relatively easily breaking a heat-sealed part of such a packaging bag body as this body by making a tensile force act in a direction separating both faces of the packaging bag body. <P>SOLUTION: A heat-sealed part along a side part on at least one side part of the bag body is formed as a strippable sealed part to shape at least a part of the sealed part edge faced with the film edge in a wavy shape or a ridge shape projecting toward the film edge side with leaving a non-heat-sealed part as a stripping margin between the film edge existing the side part. The sealed edge inside of the bag body on this stripping sealed part becomes a straight sealed part edge. and the superposed films as stripping margin are spot-joined. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

この発明は、各種の被包装物、例えば、食品や調味料を密封状態に収める包装袋体に関する。   The present invention relates to a packaging bag body in which various items to be packaged, for example, food and seasonings are sealed.

被包装物を内側に収めた状態で、少なくとも、三つの辺部または四つの辺部に対し、かかる辺部に沿った熱シール部を施して、当該被包装物を封入させた熱溶着可能なフィルムよりなる方形の包装袋体が用いられている（例えば、特許文献１参照）。
ここで、この種の包装袋体を構成する前記フィルムの内側に、界面剥離、層間剥離又は凝集破壊可能に熱融着されるシーラント層を形成させておけば、包装袋体を切断などすることなく、前記熱シール部を壊すように当該包装袋体の両面にあるフィルム部を引っ張ることで当該包装袋体内より被包装物を取り出すことが可能となる（例えば、特許文献２参照）。
特開平１０−１３９０４８号公報 特開平９−９９９５７号公報 In a state where the article to be packaged is housed inside, at least three sides or four sides can be heat-sealed along the sides, and the object to be packaged can be thermally welded. A rectangular packaging bag made of a film is used (for example, see Patent Document 1).
Here, if a sealant layer that is heat-sealed so as to be capable of interfacial peeling, delamination or cohesive failure is formed inside the film constituting this type of packaging bag body, the packaging bag body may be cut. Without pulling the film portions on both sides of the packaging bag body so as to break the heat seal portion, it becomes possible to take out the package from the packaging bag body (see, for example, Patent Document 2).
Japanese Patent Laid-Open No. 10-139048 JP-A-9-99957

しかるに、前記包装袋体を構成する前記フィルムの内側に界面剥離など可能に熱シールされるシーラント層を設けて、当該包装袋体の一面を構成するフィルム部の当該シーラント層と他面を構成するフィルム部の当該シーラント層とが前記熱シール部において熱融着されるようにしてあっても、単純にかかる熱シール部を形成させただけでは当該両フィルム部の引っ張り力が壊そうとする熱シール部の全体に偏りなく作用されてしまう傾向が生じるため、包装袋体の開封に依然として相応の力を要するものであった。前記界面剥離などが比較的小さな力で生じるように前記熱シール部を形成させる手法も考えられるが、こうした場合、被包装物の封入状態を安定的に確保し難いものとしてしまう。
また、包装袋体は、開封を容易とするために、剥取り代が設けられているものも多い。しかし、この剥取り代は、重ね合わさるフィルムが非シールであるために、経時的にそり返ってしまう課題がある。 However, a sealant layer that is heat-sealed so as to be capable of interfacial peeling or the like is provided inside the film that constitutes the packaging bag body, and the sealant layer and the other surface of the film part that constitutes one surface of the packaging bag body are configured. Even if the sealant layer of the film part is heat-sealed in the heat seal part, the heat that the tensile force of both film parts tends to break is simply formed by simply forming the heat seal part. Since there is a tendency that the entire seal portion is acted on evenly, a corresponding force is still required to open the packaging bag body. A method of forming the heat seal portion so that the interfacial peeling or the like occurs with a relatively small force is also conceivable, but in such a case, it is difficult to stably secure the sealed state of the package.
Moreover, many packaging bags are provided with a stripping allowance for easy opening. However, the stripping allowance has a problem that the film to be overlapped is bent over time because the film to be overlapped is not sealed.

この発明は、このような課題に鑑み包装袋体の両面を離間させる向きの引っ張り力を作用させることにより、比較的容易にかかる包装袋体の熱シール部を壊しての開封をなすことができ、しかも当該熱シール部による被包装物の封入状態を損なうことなく開封できると共に、剥取り代が経時的にそり返るのが防止された包装袋体を提供することを目的とする。   In view of such a problem, the present invention can be opened by breaking the heat seal portion of the packaging bag body relatively easily by applying a pulling force in a direction to separate both sides of the packaging bag body. And it aims at providing the packaging bag body which can be opened without impairing the enclosure state of the to-be-packaged object by the said heat seal part, and the peeling allowance was prevented from turning over with time.

前記目的を達成するため、この発明の包装袋袋は、包装袋体を、内側に界面剥離、層間剥離又は凝集破壊可能に熱融着されるシーラント層を有するフィルムにより構成され、被包装物を内側に収めた状態で少なくとも三つの辺部又は四つの辺部に熱シール部を形成させて当該被包装物を封入させる方形袋体であって、この袋体の少なくとも一つの辺部における当該辺部に沿った熱シール部が、当該辺部にあるフィルム縁との間に剥取り代となる非熱シール部を残した状態で、少なくとも当該フィルム縁に向けられたシール部縁の一部を波形状をなすように、又は、当該フィルム縁側に向けて突き出す山形状をなすように形成された剥取りシール部としてあると共に、この剥取りシール部における袋体の内側にあるシール部縁が真直なシール部縁となるようにしてある包装袋体であって、前記非熱シール部の剥取り代は、重ね合わさるフィルム間が点接着によりフィルムのそり返りにより開くことを防止するようにした。   In order to achieve the above-mentioned object, the packaging bag bag of the present invention is composed of a film having a sealant layer which is heat-sealed so as to be capable of interfacial peeling, delamination or cohesive failure. A rectangular bag that encloses the article to be packaged by forming a heat seal portion on at least three sides or four sides in a state of being housed inside, and the side in at least one side of the bag In a state where the heat seal portion along the film portion leaves a non-heat seal portion that becomes a stripping allowance between the film edge on the side portion, at least a part of the seal portion edge directed to the film edge The peel seal part is formed so as to form a wave shape or a mountain shape protruding toward the film edge side, and the seal part edge inside the bag body in this peel seal part is straight. Seal part A packaging bag that is set to be, the stripping allowance of non-heat-sealed part, between overlapped with each other film was made to prevent the opening by warped film by spot gluing.

かかる構成によれば、前記剥取りシール部の施された包装袋体の辺部に形成された剥取り代を把持して、この包装袋体の両面にあるフィルム部を互いに離間させる向きに引っ張り操作することができる。   According to this configuration, the stripping margin formed on the side portion of the packaging bag body provided with the stripping seal portion is gripped, and the film portions on both sides of the packaging bag body are pulled in a direction away from each other. Can be operated.

このような引っ張り操作がなされた場合、かかる引っ張り力は先ず前記波形状または山形状をなす剥取りシール部のシール部縁における山状部の頂端に集中され、比較的小さな引っ張り力をもって当該剥取りシール部の一部を前記界面剥離、層間剥離または凝集破壊によって壊すことができる。そして、このように一部の壊された剥取りシール部は、かかる引っ張り力の継続的な作用によってこの壊された箇所から側方に向けて連続して壊し易い状態となる。   When such a pulling operation is performed, the pulling force is first concentrated on the top of the crest at the edge of the seal portion of the stripped seal portion having the wave shape or the crest shape, and the stripping force is relatively small. A part of the seal portion can be broken by the interface peeling, delamination or cohesive failure. Then, the part of the peeled seal part that has been broken in this way is in a state that is easily broken continuously from the broken part to the side by the continuous action of the pulling force.

すなわち、この発明にかかる包装袋体によれば、前記剥取り代を把持した前記引っ張り操作により、比較的容易に方形状をなす包装袋体の前記剥取りシール部の設けられた一つの辺部のシール状態を壊して前記両フィルムを包装袋体に封入された被包装物の取り出しに必要な範囲で簡単に分離させることができる。
また、剥取り代は、重ね合わさるフィルム間が点接着によりフィルムのそり返りが防止されているので、経時的にフィルムがそり返り重ね合わされたフィルムが開くことを防止することができる。そして、開封するときは点接着なので容易に剥がすことができ、支障はない。 That is, according to the packaging bag body according to the present invention, the one side portion provided with the stripping seal portion of the packaging bag body that forms a square shape relatively easily by the pulling operation that grips the stripping allowance. It is possible to easily separate the two films within a range necessary for taking out the packaged product enclosed in the packaging bag body.
Moreover, since the peeling allowance prevents the film from turning over between the films to be overlapped by point adhesion, it is possible to prevent the film from turning over and overlapping with time. And when opening, since it is point adhesion, it can be easily peeled off and there is no problem.

この発明にかかる包装袋体にあっては、方形状をなし、かつ、少なくとも三つの辺部または四つの辺部に沿って熱シール部が形成されて被包装物を封入した包装袋体における当該熱シール部の少なくとも一つを壊しての開封を、当該包装袋体の両面を離間させる向きの引っ張り力の作用により比較的容易になすことができ、また、この引っ張り操作を行い易い特長を有する。さらに、前記熱シール部によるシール状態を比較的強固に保っても前記開封に支障を生じさせ難いことから、被包装物の封入状態を開封が必要とされない段階においては安定的に確保することができる。
また、剥取り代は、重ね合わさるフィルム間が点接着によりフィルムのそり返りが防止されているので、経時的にフィルムがそり返り重ね合わされたフィルムが開くことを防止することができる。 In the packaging bag body according to the present invention, the packaging bag body has a rectangular shape, and a heat seal portion is formed along at least three sides or four sides to enclose an item to be packaged. Opening after breaking at least one of the heat seal portions can be made relatively easily by the action of a pulling force in a direction to separate both sides of the packaging bag body, and has the feature that this pulling operation is easy to perform. . Furthermore, since it is difficult for the opening to be hindered even if the sealing state by the heat seal portion is kept relatively strong, it is possible to stably secure the sealed state of the packaged object at a stage where opening is not required. it can.
Moreover, since the peeling allowance prevents the film from turning over between the films to be overlapped by point adhesion, it is possible to prevent the film from turning over and overlapping with time.

以下、この発明を実施するための最良の形態について図面を参照して説明する。図１乃至図６は、包装袋体のそれぞれ異なる実施の形態を示す正面図、図７（ａ）（ｂ）は、開封の状態を示す包装袋体の斜視図、図８は包装袋体の使用状態を説明する斜視図、図９乃至図１１は包装袋体の要部断面図である。   The best mode for carrying out the present invention will be described below with reference to the drawings. 1 to 6 are front views showing different embodiments of the packaging bag body, FIGS. 7A and 7B are perspective views of the packaging bag body showing the opened state, and FIG. 8 is a view of the packaging bag body. FIG. 9 to FIG. 11 are cross-sectional views of the main part of the packaging bag body.

なお、ここで図１乃至図６は、この実施の形態にかかる包装袋体Ｈの各態様をそれぞれ表しており、各図に表されている包装袋体Ｈはそれぞれ剥取りシール部４ａの形状を異ならせている。また、図８は、図１に示される態様の包装袋体Ｈを斜視の状態として表しており、図８では特に、剥取り代８ａを利用して当該包装袋体Ｈの両面側にあるフィルム部５を互いに離間する向きに引っ張った状態を示している。また、図９乃至図１１は、図８のように引っ張り力が作用された場合の包装袋体Ｈの熱シール部４を断面にして拡大して示した構成図であり、図９は界面剥離の状態を、図１０は層間剥離の状態を、さらに、図１１は凝集破壊の状態を、それぞれ示している。   Here, FIG. 1 to FIG. 6 show the respective aspects of the packaging bag body H according to this embodiment, and the packaging bag body H shown in each figure is the shape of the peel seal portion 4a. Are different. FIG. 8 shows the packaging bag body H of the embodiment shown in FIG. 1 as a perspective state. In FIG. 8, in particular, the films on both sides of the packaging bag body H using the stripping allowance 8a. The state which pulled the part 5 in the direction which mutually spaces apart is shown. 9 to 11 are configuration diagrams showing the heat seal portion 4 of the packaging bag body H when the tensile force is applied as shown in FIG. FIG. 10 shows a delamination state, and FIG. 11 shows a cohesive failure state.

この実施の形態にかかる包装袋体Ｈは、内側にシーラント層２を備えたフィルムＦ（図９乃至図１１参照）よりなり、方形袋状をなすと共に、その四つの辺部３、３．．．にそれぞれ当該辺部３に亙って施された熱シール部４を備えており、この熱シール部４により内側に収められた被包装物Ｗを密封状態に置く構成を備えている。
より具体的には、包装袋体Ｈを構成する一面側のフィルム部５と他面側のフィルム部５とが、前記熱シ−ル部４により中央に被包装物Ｗの封入空間７を形成させるように、前記熱シール部４により一体にされて、かかる包装袋体Ｈは構成されている。 The packaging bag body H according to this embodiment is made of a film F (see FIG. 9 to FIG. 11) having a sealant layer 2 on the inner side, forms a rectangular bag shape, and has four sides 3, 3,. . . The heat seal portion 4 is provided over the side portion 3, and the package W placed inside is sealed by the heat seal portion 4.
More specifically, the film portion 5 on the one surface side and the film portion 5 on the other surface side that form the packaging bag body H form an enclosed space 7 for the package W in the center by the heat seal portion 4. The packaging bag body H is configured so as to be integrated by the heat seal portion 4.

前記シーラント層２を向き合わせるように二つ折りにした材料フィルムから包装袋体Ｈを形成させる場合には、当該材料フィルムにおける折った側と反対の側縁に前記熱シール部４を施してこの側縁で両面のフィルム部５、５を止着すると共に、この折り縁に交叉する向きに間隔を開けて二か所の当該熱シール部４、４を施して当該二か所においても当該両面のフィルム部５、５を止着して、前記包装袋体Ｈを形成させることができる（いわゆる三方シール袋）。包装袋体Ｈへの被包装物Ｗの封入は、これらの熱シール部４、４．．．の形成過程においてなすことができる。また、このように二つ折りにした材料フィルムから包装袋体Ｈを構成する場合には、折り縁側には当該折り縁に沿った前記熱シール部４を必ずしも形成させる必要はない。   When the packaging bag body H is formed from a material film folded in two so as to face the sealant layer 2, the heat seal portion 4 is applied to the side edge opposite to the folded side of the material film. The film portions 5 and 5 on both sides are fixed at the edges, and the heat seal portions 4 and 4 are provided at intervals in the direction crossing the folded edges, so that the both sides of the film portions 5 and 5 are also provided. The film parts 5 and 5 can be fastened to form the packaging bag body H (so-called three-sided seal bag). Encapsulation of the article to be packaged W in the packaging bag body H is performed by the heat seal parts 4, 4. . . Can be done in the formation process. Moreover, when the packaging bag body H is comprised from the material film folded in half in this way, the said heat seal part 4 along the said folding edge does not necessarily need to be formed in the folding edge side.

前記シーラント層２を向き合わせるようにした二枚の材料フィルムから包装袋体Ｈを形成させる場合には、当該材料フィルムにおける両側縁に前記熱シール部４を施してこの両側縁で両面のフィルム部５、５を止着すると共に、この両側縁に交叉する向きに間隔を開けて二か所の当該熱シール部４、４を施して当該二か所においても当該両面のフィルム部５、５を止着して、前記包装袋体Ｈを形成させることができる（いわゆる四方シール袋）。この場合にも、包装袋体Ｈへの被包装物Ｗの封入は、これらの熱シール部４、４．．．の形成過程においてなすことができる。   When the packaging bag body H is formed from two material films with the sealant layer 2 facing each other, the heat seal portions 4 are applied to both side edges of the material film, and the film portions on both sides at the both side edges. 5 and 5 are fastened, and two heat seal portions 4 and 4 are provided at intervals in the direction crossing both side edges, and the film portions 5 and 5 on both sides are also attached at the two locations. The packaging bag body H can be formed by being fastened (so-called four-side seal bag). Also in this case, the packaged bag body H is sealed with the article to be packaged W in the heat seal portions 4, 4. . . Can be done in the formation process.

また、前記三方シール袋の場合も四方シール袋の場合も、包装袋体Ｈが複数の封入空間７、７．．．を有するように、その中間部にさらに一または二以上の熱シール部が形成されて、二種以上の被包装物Ｗが封入された包装袋体Ｈとされることもある。
また、この実施の形態にあっては、包装袋体Ｈを構成するフィルムＦが、前記熱シール部４において界面剥離、層間剥離又は凝集破壊を生じるように、前記シーラント層２を熱シールされる構成としてある。 In the case of the three-side seal bag and the four-side seal bag, the packaging bag body H has a plurality of enclosed spaces 7, 7. . . 1 or two or more heat seal portions may be further formed in the intermediate portion to form a packaging bag body H in which two or more kinds of articles to be packaged W are enclosed.
Further, in this embodiment, the sealant layer 2 is heat-sealed so that the film F constituting the packaging bag body H causes interfacial peeling, delamination, or cohesive failure in the heat seal portion 4. As a configuration.

かかる界面剥離を生じるフィルムは、例えば、図９に示すようにプラスチックを延伸させて形成されたベースフィルム１の一面に、接着層２ａを介して、内側から非延伸のプラスチック層２ｅ、接着フィルム層２ｉ、非延伸のプラスチック層２ｅの三層よりなるシーラント層２を一体に設けさせることにより形成させることができる。そして、包装袋体Ｈの一面側のフィルム部５のシーラント層２の最上面にある当該シーラント層２を構成するプラスチック層２ｂと、包装袋体Ｈの他面側のフィルム部５のシーラント層２の最上面にある当該シーラント層２を構成するプラスチック層２ｂとを強固に融着させ合わせない温度で前記熱シールを施すことにより、両面のフィルム部５、５を離間させる向きに引っ張った際にかかる両面のフィルム部５、５の接触界面２ｃにおいて前記熱シール部４を壊して当該両面のフィルム部５、５を分離させることができる（図９）。   For example, a film that causes such interfacial peeling includes a non-stretched plastic layer 2e, an adhesive film layer, and the like on one surface of a base film 1 formed by stretching a plastic as shown in FIG. 9 via an adhesive layer 2a. It can be formed by integrally providing a sealant layer 2 composed of three layers of 2i and an unstretched plastic layer 2e. And the plastic layer 2b which comprises the said sealant layer 2 in the uppermost surface of the sealant layer 2 of the film part 5 of the one surface side of the packaging bag body H, and the sealant layer 2 of the film part 5 of the other surface side of the packaging bag body H When the film portions 5 and 5 on both sides are pulled in a direction to separate them by applying the heat seal at a temperature at which the plastic layer 2b constituting the sealant layer 2 on the uppermost surface of the material is not firmly bonded to each other. At the contact interface 2c of the film parts 5 and 5 on both sides, the heat seal part 4 can be broken to separate the film parts 5 and 5 on both sides (FIG. 9).

また、かかる層間剥離を生じるフィルムは、例えば、図１０に示すようにプラスチックを延伸させて形成されたベースフィルム１の一面に、接着層２ａを介して、内側から非延伸のプラスチック層２ｅ、接着フィルム層２ｉ、非延伸のプラスチック層２ｅの三層よりなるシーラント層２を一体に設けさせることにより形成させることができる。そして、包装袋体Ｈの一面側のフィルム部５のシーラント層２の最上面にある当該シーラント層２を構成するプラスチック層２ｂと、包装袋体Ｈの他面側のフィルム部５のシーラント層２の最上面にある当該シーラント層２を構成するプラスチック層２ｂとを強固に融着させ合わせる温度で前記熱シールを施すことにより、両面のフィルム部５、５を離間する向きに引っ張った際にいずれか一方のフィルム部５におけるシーラント層２を構成する接着フィルム層２ｉと非延伸のプラスチック層２ｅとの層間２ｆにおいて前記熱シール部４を壊して当該両面のフィルム部５、５を分離させることができる（図１０）。   In addition, the film causing such delamination is, for example, a non-stretched plastic layer 2e from the inside through an adhesive layer 2a on one surface of a base film 1 formed by stretching plastic as shown in FIG. It can be formed by integrally providing a sealant layer 2 composed of three layers of a film layer 2i and an unstretched plastic layer 2e. And the plastic layer 2b which comprises the said sealant layer 2 in the uppermost surface of the sealant layer 2 of the film part 5 of the one surface side of the packaging bag body H, and the sealant layer 2 of the film part 5 of the other surface side of the packaging bag body H When the film portions 5 and 5 on both sides are pulled away from each other by applying the heat seal at a temperature at which the plastic layer 2b constituting the sealant layer 2 on the uppermost surface is firmly fused and bonded together, Breaking the heat seal portion 4 in the interlayer 2f between the adhesive film layer 2i constituting the sealant layer 2 and the non-stretched plastic layer 2e in the one film portion 5 to separate the film portions 5 and 5 on both sides. Yes (FIG. 10).

また、かかる凝集破壊を生じるフィルムは、例えば、図１１に示すようにプラスチックを延伸させて形成されたベースフィルム１の一面に、接着層２ａを介して、アルミニウム箔層２ｇを設けると共に、このアルミニウム箔層２ｇの上面に凝集破壊を生じる熱溶着可能な接着剤層２ｈよりなるシーラント層２を設けさせることにより形成させることができる。この場合には、両面のフィルム部５、５を離間する向きに引っ張った際に、熱シールにより溶着された双方のフィルム部５、５におけるシーラント層２を構成する接着剤層２ｈにおいて凝集破壊を生じさせることができ、これにより前記熱シール部４を壊して当該両面のフィルム部５、５を分離させることができる（図１１）。   In addition, a film that causes such cohesive failure is provided with an aluminum foil layer 2g on one surface of a base film 1 formed by stretching a plastic as shown in FIG. It can be formed by providing a sealant layer 2 made of a heat-weldable adhesive layer 2h that causes cohesive failure on the upper surface of the foil layer 2g. In this case, when the film parts 5 and 5 on both sides are pulled away from each other, cohesive failure occurs in the adhesive layer 2h constituting the sealant layer 2 in both film parts 5 and 5 welded by heat sealing. Thus, the heat seal portion 4 can be broken and the film portions 5 and 5 on both sides can be separated (FIG. 11).

また、この実施の形態にあっては、方形状をなす包装袋体Ｈの一つの辺部３における当該辺部３に沿った熱シール部４が、図１、図３、図４および図５に示すような当該辺部３にあるフィルム縁６との間に剥取り代８ａとなる非熱シール部８を残した状態で波形帯状をなすように、あるいは、図２に示すような当該フィルム縁６側に向けて突き出す山形帯状をなすようにし、また、図６に示すようにこれと反対のシール部縁４ｅを真直にするように、形成してある（以下、かかる波形帯状などをなすように形成された熱シール部４を剥取りシール部４ａという。）。   Moreover, in this embodiment, the heat seal part 4 along the side part 3 in one side part 3 of the packaging bag body H having a rectangular shape is shown in FIGS. 1, 3, 4, and 5. As shown in FIG. 2, the film has a corrugated band shape with the non-thermal sealing portion 8 serving as the stripping allowance 8a left between the film edge 6 on the side portion 3 as shown in FIG. A chevron-shaped band projecting toward the edge 6 side is formed, and a seal part edge 4e opposite to this is formed as shown in FIG. 6 (hereinafter referred to as such a corrugated band-like shape). The heat seal portion 4 formed as described above is called a peel seal portion 4a).

すなわち、この実施の形態にあっては、かかる剥取りシール部４ａの形成された包装袋体Ｈの辺部３に沿った両フィルム部５、５のフィルム縁６と当該剥取りシール部４ａとの間に、当該辺部３にある両フィルム部５、５のフィルム縁６を把持可能な幅を備えた非熱シール部８が残される位置に、当該剥取りシール部４ａが形成してある。また、この剥取りシール部４ａの両側に位置する熱シール部４の側端部９が当該剥取りシール部４ａの幅内に略収まるように当該両側に位置する熱シール部４が真直な帯状をなすように形成されている。   That is, in this embodiment, the film edge 6 of both film portions 5 and 5 along the side portion 3 of the packaging bag body H in which the peel seal portion 4a is formed, and the peel seal portion 4a. The stripped seal portion 4a is formed at a position where the non-thermal seal portion 8 having a width capable of gripping the film edge 6 of both the film portions 5 and 5 in the side portion 3 is left. . Further, the heat seal portions 4 located on both sides of the heat seal portion 4 located on both sides of the peel seal portion 4a are straight strips so that the side end portions 9 of the heat seal portion 4 are substantially within the width of the peel seal portion 4a. It is formed to make.

この結果、この実施の形態にあっては、前記剥取りシール部４ａの施された包装袋体Ｈの辺部３に形成された剥取り代８ａを把持して、この包装袋体Ｈを構成する前記両フィルム部５、５を互いに離間させる向きに引っ張り操作することができる。このような引っ張り操作がなされた場合、かかる引っ張り力は先ず前記剥取りシール部４ａの山状部４ｂの頂端４ｃに集中され、比較的小さな引っ張り力をもって当該剥取りシール部４ａの一部を前記界面剥離、層間剥離または凝集破壊によって壊すことができる。そして、このように一部の壊された剥取りシール部４ａは、かかる引っ張り力の継続的な作用によってこの壊された箇所から側方に向けて連続して壊し易い状態となり、また、この剥取りシール部４ａ内に端部９を略収めるように形成された当該剥取りシール部４ａの両側に位置される熱シール部４もかかる引っ張り力の継続的な作用によって当該剥取りシール部４ａ内に位置される端部９側から漸次壊され易い状態となる。   As a result, in this embodiment, the packaging bag body H is configured by gripping the stripping allowance 8a formed on the side portion 3 of the packaging bag body H provided with the stripping seal portion 4a. The film portions 5 and 5 can be pulled in a direction in which they are separated from each other. When such a pulling operation is performed, the pulling force is first concentrated on the top end 4c of the mountain-shaped portion 4b of the stripping seal portion 4a, and a part of the stripping seal portion 4a is moved to the top with a relatively small pulling force. It can be broken by interfacial debonding, delamination or cohesive failure. The part of the peel-off seal portion 4a thus broken is in a state where it is easily broken continuously from the broken part to the side by the continuous action of the pulling force. The heat seal portions 4 located on both sides of the peel seal portion 4a formed so as to substantially fit the end portion 9 in the take seal portion 4a are also within the peel seal portion 4a by the continuous action of the pulling force. It will be in the state which is easy to be destroyed gradually from the edge part 9 side located in this.

すなわち、この実施の形態にあっては、前記剥取り代８ａを把持した前記両フィルム部５、５を離間させる向きの引っ張り操作により、比較的容易に方形状をなす包装袋体Ｈの前記剥取りシール部４ａの設けられた一つの辺部３と当該一つの辺部３の両側にある辺部３、３において、三か所の前記熱シール部４、４．．．を壊して前記両フィルム部５、５を包装袋体Ｈに封入された被包装物Ｗの取り出しに必要な範囲で簡単に分離させることができる。   That is, in this embodiment, the peeling of the packaging bag body H that is relatively easily formed into a rectangular shape by a pulling operation in the direction of separating the film portions 5 and 5 holding the stripping allowance 8a. Three heat seal portions 4, 4... Are provided on one side 3 provided with the take-off seal portion 4 a and side portions 3, 3 on both sides of the one side portion 3. . . The film portions 5 and 5 can be easily separated within a range necessary for taking out the article W to be packaged enclosed in the packaging bag body H.

前記剥取りシール部４ａにおける前記山状部４ｂの数、隣り合う山状部４ｂ間の間隔、当該山状部４ｂの形状は、必要に応じて適宜変更することが予定される（図１、図３および図４）。また、一つの山状部４ｂの突き出し側に複数の頂端４ｃ、４ｃ．．．が設けられるように前記剥取りシール部４ａが不規則な波形帯状に形成してあることもある（図５）。また、かかる山状部４ｂの頂端４ｃがアール状をなすように、かかる剥取りシール部４ａを形成しておくこともある。   The number of the mountain-shaped portions 4b in the peel seal portion 4a, the interval between adjacent mountain-shaped portions 4b, and the shape of the mountain-shaped portions 4b are scheduled to be changed as appropriate (FIG. 1, 3 and 4). Further, a plurality of apexes 4c, 4c. . . The stripped seal portion 4a may be formed in an irregular corrugated belt shape (FIG. 5). Further, the peeling seal portion 4a may be formed so that the top end 4c of the mountain-like portion 4b has a round shape.

また、図２に示されるように、剥取りシール部４ａを、谷状部を持たない、当該剥取りシール部４ａの施された包装袋体Ｈの辺部３にあるフィルム縁５に向けて突き出す一つの山状部４ｂよりなる山形帯状に構成してあることもある。さらに、かかる剥取りシール部４ａを、図６に示されるように、剥取り代８ａとなる非熱シール部８のフィルム縁６側にある剥取りシール部４ａのシール部縁４ｄを波形状にし、かつ、包装袋体Ｈの内側にあるシール部縁４ｅを真直にするように構成して、各辺部３に施された熱シール部４のいずれもが包装袋体Ｈの内側にあるシール部縁を真直にするように構成してあることもある。このように構成した場合、典型的には、包装袋体Ｈに柔らかい状態で封入される被包装物Ｗの外郭形状が封入後の硬化によって四角形状をなすようにする当該被包装物Ｗの封入が可能とされる。   Moreover, as FIG. 2 shows, the peeling seal | sticker part 4a is not directed to the film edge 5 in the side part 3 of the packaging bag body H to which the said peeling seal | sticker part 4a was given, which does not have a trough-shaped part. It may be configured in the shape of a chevron formed by one projecting chevron 4b. Further, as shown in FIG. 6, the peeling seal portion 4a has a wave shape on the seal portion edge 4d of the peeling seal portion 4a on the film edge 6 side of the non-thermal seal portion 8 serving as the removal allowance 8a. And the seal part edge 4e inside the packaging bag body H is configured to be straight, and any of the heat seal parts 4 applied to the side parts 3 is a seal inside the packaging bag body H. It may be configured so that the edges are straight. In the case of such a configuration, typically, the outer shape of the package W to be sealed in a soft state in the packaging bag body H forms a quadrangular shape by curing after the encapsulation, and the encapsulation of the package W Is possible.

また、前記包装袋体Ｈの二以上の辺部３、３．．．に、前記剥取り代８ａと剥取りシール部４ａとを形成しておくこともある。この場合には、包装袋体Ｈの開封を当該包装袋体Ｈの二以上の辺部３、３．．．のそれぞれから容易になすことができる。   Also, two or more sides 3, 3. . . In addition, the stripping allowance 8a and the stripping seal portion 4a may be formed. In this case, the opening of the packaging bag body H is performed when two or more sides 3, 3,. . . Can be made easily from each of the above.

さらに、前記剥取り代８ａにおける両面のフィルム部５、５は、点接着１０されている。この点接着１０は、剥取り代８ａの重ね合わされたフィルムは非接着なので経時的にそり返り互いに開いた状態になるのを防止するものである。本例では、２箇所に設けた場合を示しているが、この点接着の数や設ける位置は適宜でよい。また、この点接着１０は、経時的に剥取り代８ａのそり返りを防止するが、開封時に支障になるのは好ましくない。   Further, the double-sided film portions 5 and 5 in the stripping allowance 8a are point-bonded 10. This point bonding 10 prevents the films with the stripping allowances 8a from being overlapped so that they are bent over time and become open to each other. In this example, the case where two points are provided is shown, but the number of point bonds and the positions where they are provided may be appropriate. Further, this point bonding 10 prevents the stripping allowance 8a from turning over with time, but it is not preferable that it becomes an obstacle at the time of opening.

被包装物Ｗとしては、典型的には、板状に成形されたチーズや、羊羮、飴、ミンチ状にされた肉加工物などの食料品や、みそ、バター、油などの調味料が予定されるが、フィルムにより封入される必要のあるものであれば、いかなるものであっても構わない。   Typically, the packaged goods W include food products such as cheese formed in a plate shape, processed meat such as mutton, salmon, and minced meat, and seasonings such as miso, butter and oil. As long as it is planned, it may be anything as long as it needs to be enclosed by a film.

包装袋体を示す正面図である。It is a front view which shows a packaging bag body. 別の包装袋体を示す正面図である。It is a front view which shows another packaging bag body. 更に別の包装袋体を示す正面図である。It is a front view which shows another packaging bag body. また更に別の包装袋体を示す正面図である。It is a front view which shows another packaging bag body. また更に別の包装袋体を示す正面図である。It is a front view which shows another packaging bag body. また更に別の包装袋体を示す正面図である。It is a front view which shows another packaging bag body. 包装袋体開封状態を示す斜視図（ａ）（ｂ）である。It is a perspective view (a) (b) which shows a packaging bag body open state. 包装袋体の使用状態を説明する斜視図である。It is a perspective view explaining the use condition of a packaging bag body. 包装袋体の要部断面図である。It is principal part sectional drawing of a packaging bag body. 包装袋体の要部断面図である。It is principal part sectional drawing of a packaging bag body. 包装袋体の要部断面図である。It is principal part sectional drawing of a packaging bag body.

符号の説明Explanation of symbols

Ｈ 包装袋体
Ｆ フィルム
Ｗ 被包装物
２ シーラント層
３ 辺部
４ 熱シール部
４ａ 剥取りシール部
６ フィルム縁
７ 封入空間
８ 非熱シール部
８ａ 剥取り代
１０ 点接着 H Packaging bag body F Film W Package 2 Sealant layer 3 Side 4 Heat seal part 4a Strip seal part 6 Film edge 7 Enclosed space 8 Non-heat seal part 8a Stripping allowance 10 Point adhesion

Claims (1)

内側に界面剥離、層間剥離又は凝集破壊可能に熱融着されるシーラント層を有するフィルムにより構成され、被包装物を内側に収めた状態で少なくとも三つの辺部又は四つの辺部に熱シール部を形成させて当該被包装物を封入させる方形袋体であって、この袋体の少なくとも一つの辺部における当該辺部に沿った熱シール部が、当該辺部にあるフィルム縁との間に剥取り代となる非熱シール部を残した状態で、少なくとも当該フィルム縁に向けられたシール部縁の一部を波形状をなすように、又は、当該フィルム縁側に向けて突き出す山形状をなすように形成された剥取りシール部としてあると共に、この剥取りシール部における袋体の内側にあるシール部縁が真直なシール部縁となるようにしてある包装袋体であって、前記非熱シール部の剥取り代は、重ね合わさるフィルム間が点接着によりフィルムのそり返りにより開くことが防止されていることを特徴とする包装袋体。   Consists of a film having a sealant layer that is heat-sealed so that interfacial debonding, delamination or cohesive failure can be achieved on the inside, and a heat-sealed portion on at least three sides or four sides with the packaged item inside A rectangular bag that encloses the article to be packaged, wherein the heat seal portion along the side of at least one side of the bag is between the film edge on the side. In a state where the non-thermal seal portion is left as an exfoliation allowance, at least a part of the seal portion edge directed to the film edge is formed into a wave shape, or a mountain shape protruding toward the film edge side is formed. And a non-thermal packaging bag body in which a seal part edge inside the bag body in the peel seal part is a straight seal part edge. Of the seal Allowance is packaging bag body, characterized in that between overlapped with each other film is prevented from opening by the warped film by spot gluing.
JP2008193723A 2008-07-28 2008-07-28 Packaging bag body Withdrawn JP2010030627A (en)

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