JP4962081B2 - Easy-to-open gusset bag - Google Patents

Easy-to-open gusset bag Download PDF

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JP4962081B2
JP4962081B2 JP2007080710A JP2007080710A JP4962081B2 JP 4962081 B2 JP4962081 B2 JP 4962081B2 JP 2007080710 A JP2007080710 A JP 2007080710A JP 2007080710 A JP2007080710 A JP 2007080710A JP 4962081 B2 JP4962081 B2 JP 4962081B2
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sheet
wall
thermal bonding
opening
cut line
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JP2008239187A (en
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健司 神田
隆弘 寺崎
元子 若松
友晴 安威
智裕 米本
智新 野堀
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Dai Nippon Printing Co Ltd
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Dai Nippon Printing Co Ltd
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Description

本発明は、一対の壁面シートと一対の側面シートからなり四隅に側端縁熱接着部を有する四隅シールガセット袋に関し、詳しくは、摘み部より開封用切目線に沿って壁面シートが引裂かれて開封でき広い開封口が形成される易開封性ガセット袋に関する。   The present invention relates to a four-corner seal gusset bag comprising a pair of wall sheets and a pair of side sheets and having side edge thermal bonding portions at the four corners. Specifically, the wall sheet is torn along the opening cut line from the knob. The present invention relates to an easily openable gusset bag that can be opened and has a wide opening.

従来より、スナック菓子、スナック食品、あられ、ビスケット、おつまみ等を収納する包装袋として、四方シール、三方シール、ガセット袋あるいは底部にガセット部を備えた自立袋等が用いられている。中でも、ガセット袋や自立袋はガセット部を有するために立体形状とすることができ、優れた店頭効果を有し広く用いられ、特にガセット袋は収容量も大きくすることができ販売者にとって便利な形態である。ガセット袋には背貼り部を有するタイプやガセット部の四隅に側端縁熱接着部を設けた四隅シールガセット袋等がある。   Conventionally, four-sided seals, three-sided seals, gusset bags, or self-supporting bags having a gusset portion at the bottom are used as packaging bags for storing snacks, snack foods, hail, biscuits, snacks and the like. Among them, gusset bags and self-supporting bags can have a three-dimensional shape because they have a gusset portion, and are widely used with an excellent storefront effect. In particular, gusset bags can be increased in storage capacity and are convenient for sellers. It is a form. The gusset bag includes a type having a back pasting portion and a four-corner seal gusset bag provided with side edge thermal bonding portions at four corners of the gusset portion.

しかし、ガセット袋は、開封時に側部のガセット部が開封を阻害するために、大きな開封口を形成することが難しい。そのため、開封時にハサミ等の道具を用いて上部熱接着部と内容物との間を切取ったりする必要があり、開封するのに手間隙がかかり面倒なものである。   However, it is difficult for the gusset bag to form a large opening because the side gusset portion inhibits the opening at the time of opening. For this reason, it is necessary to cut the space between the upper thermal bonding portion and the contents using a tool such as scissors at the time of opening, which is cumbersome and takes time to open.

これらのガセット袋の開封を容易にするために、プラスチックフィルム等よりなる軟包装材を用いた背貼り部を有するタイプの袋に於いて、該袋の片方の側面或いは対応する両方の側面の内壁面にほぼその全面を覆う巾広の引き裂きガイド補強部材を一体的に設けて構成したガセット袋が開示されている(例えば、特許文献1参照)。しかし、ガセット袋の上下シール部分において、両方の側面はガイド補強材の厚み分だけ厚みが増大し、上下シール部分の接着強度が低下すると共に、ガイド補強材のない部分との境界部分に段差を生じるためにピンホールが発生し十分な密封性が保持できないことがあるという問題があった。   In order to facilitate the opening of these gusset bags, in a bag of a type having a back pasting portion using a soft packaging material made of a plastic film or the like, one side or both of the corresponding side surfaces of the bag A gusset bag is disclosed that is configured by integrally providing a wide tear guide reinforcing member that covers almost the entire surface of a wall surface (see, for example, Patent Document 1). However, in the upper and lower seal parts of the gusset bag, both sides increase in thickness by the thickness of the guide reinforcement, the adhesive strength of the upper and lower seal parts decreases, and a step is formed at the boundary with the part without the guide reinforcement. For this reason, there is a problem that pinholes are generated and sufficient sealing performance cannot be maintained.

また、互いに略平行方向の6辺で画された6つの側面と背貼りとを備え、前記6辺のうちの相対する1対が内側に折り込まれた谷折り線をなす変型六角筒形状の包装袋であって、前記背貼りは前記側面のうちの前記谷折り線を含まない面に設けられており、前記の6辺のうちの、前記谷折り線の少なくとも一方に隣接する2辺に沿って帯状の接着部分が設けられており、かつ、前記変型六角筒の両端の少なくとも一端における前記背貼りと前記帯状接着部との間に、開封開始手段が設けられているガセット袋が提案されている(例えば、特許文献2参照)。   Also, a modified hexagonal cylindrical package comprising six side surfaces defined by six sides substantially parallel to each other and back bonding, and forming a valley fold line in which one pair of the six sides is folded inward The back pasting is provided on a surface of the side surface that does not include the valley fold line, and along two sides adjacent to at least one of the valley fold lines among the six sides. A gusset bag is proposed in which a belt-like adhesive portion is provided, and an opening start means is provided between the back adhesive and the belt-like adhesive portion at at least one end of each end of the deformed hexagonal cylinder. (For example, refer to Patent Document 2).

上記の特許文献2の発明により、ガセット袋の密封性は保持できるものとなったが、一端に設けられた開封開始手段(V字形ノッチ)より包装体を引裂いて蛇行した開封線を生じながら帯状の熱接着部に到達し、到達後は帯状の熱接着部に沿って開封線が伝搬して引裂かれる構成となっており、開封開始手段より開封線が帯状の熱接着部に到達するまでの距離が長く、その開封口も不定形で不揃いなものとなり、さらに熱接着部に沿った開封線の切れ口もギザギザしたものとなり、開封口に美麗さがなく、外観を損ねるものとなるという問題がある。また、ガセット部の寸法が小さい場合には、大きな開封口とならず、例えば、ポテトチップ等を収納したガセット袋の場合、ポテトチップ等が消費されて少なくなってくると中を覗き込むようにして取り出さなければならず、取り出しにくいという不便さや、手を深く入れるために、ポテトチップを摘む手指以外に手の甲や掌を汚すという問題がある。
特開平2−258558 特開2006−176143
According to the invention of the above-mentioned Patent Document 2, the sealing property of the gusset bag can be maintained, but the band-like shape is generated while tearing the package body from the opening start means (V-shaped notch) provided at one end to generate a meandering opening line. After reaching the heat-bonded part, the unsealed line propagates along the belt-shaped heat-bonded part and is torn, and from the opening start means until the unsealed line reaches the band-shaped heat-bonded part. The problem is that the distance is long, the opening is irregular and irregular, and the opening of the opening line along the heat-bonded part is also jagged, the opening is not beautiful and the appearance is damaged. There is. Also, if the gusset part is small in size, it will not be a large opening.For example, in the case of a gusset bag containing potato chips, etc. There are inconveniences that it is difficult to take out, and there are problems that the back and palm of the hand are soiled in addition to the fingers that pick up the potato chips in order to put the hand deeply.
JP-A-2-258558 JP 2006-176143 A

そこで本発明は、上記問題点を解決し、摘み部より開封用切目線に沿って、引裂き開封でき、上部熱接着部に到達すると一対の壁面シート間で剥離され、さらに開封用切目線に沿って壁面シートが引裂かれて開封でき広い開封口が形成される四隅シールガセットタイプの易開封性ガセット袋を提供することである。   Therefore, the present invention solves the above-mentioned problems, can be torn open along the opening cut line from the knob, and peels between the pair of wall sheets when reaching the upper thermal bonding section, and further along the opening cut line It is another object of the present invention to provide a four-corner seal gusset type easy-open gusset bag in which a wall sheet is torn and opened to form a wide opening.

本発明は、上記課題を達成するために、請求項1記載の本発明は、基材層と熱接着性樹脂層が積層された一対の壁面シートと一対の側面シートとからなり、一対の前記壁面シートの前記熱接着性樹脂層面同士を対向させて配置し、一対の前記側面シートの前記熱接着性樹脂層を外面にして中央で内側に山折りし、前記壁面シート間の両側の側部に、それぞれ挿入し、前記壁面シートと前記側面シートの対向する前記熱接着性樹脂層面同士の側端縁で熱接着して側端縁熱接着部を四隅に形成し、ガセット部を設け、上部に前記側端縁熱接着部に直交する上部熱接着部を備えた四隅シールガセット袋であって、前記上部熱接着部を前記壁面シートの上端縁より所定長さ下方に寄せて設け、前記上部熱接着部の上側端縁と前記壁面シートの上端縁と前記側部に設けた前記ガセット部の内側に山折りされて形成された山折り線とで区画された領域に一方の前記壁面シートの上端縁から前記上部熱接着部の上側端縁に達する開封用切目線を前記基材層に一定の間隔で一対設けて該開封用切目線と前記上部熱接着部の上側端縁と前記壁面シートの上端縁で囲まれた部分に摘み部を設けて、前記開封用切目線が下方斜めに伸び前記側端縁熱接着部に跨ってそれぞれ延設され、前記摘み部より前記開封用切目線に沿って、前記壁面シートを引裂くと共に、前記上部熱接着部で前記壁面シート間で剥離させ、さらに前記開封用切目線に沿って前記壁面シートより開封することを特徴とする易開封性ガセット袋である。   To achieve the above object, the present invention comprises a pair of wall sheets and a pair of side sheets in which a base material layer and a heat-adhesive resin layer are laminated. The heat-adhesive resin layer surfaces of the wall sheet are arranged so as to face each other, and the heat-adhesive resin layers of the pair of side sheets are externally faced and folded inward at the center, and side portions on both sides between the wall sheets. Each of the wall sheet and the side sheet are thermally bonded at the side edges of the heat-adhesive resin layer surfaces facing each other to form side edge thermal bonding portions at the four corners, provided with gusset portions, A four-corner seal gusset bag having an upper thermal bonding portion orthogonal to the side edge thermal bonding portion, the upper thermal bonding portion being provided at a predetermined length below the upper edge of the wall sheet, An upper edge of the thermal bonding portion and an upper edge of the wall sheet; Opening from the upper edge of one of the wall sheets to the upper edge of the upper thermal bonding portion in a region defined by a mountain fold line formed by being folded inside the gusset portion provided on the side portion A pair of cut lines for the base material layer are provided at regular intervals, and a knob is provided in a portion surrounded by the opening cut line, the upper edge of the upper thermal bonding section, and the upper edge of the wall sheet, The opening cut line extends obliquely downward and extends across the side edge thermal bonding portion, tears the wall sheet along the opening cut line from the knob, and the upper thermal bonding It is an easily openable gusset bag which is made to peel between the wall surface sheets at the portion and further opened from the wall surface sheet along the opening cut line.

また、請求項2記載の本発明は、請求項1記載の易開封性ガセット袋において、前記開封用切目線が下方斜めに伸び前記側端縁熱接着部近傍で下方に湾曲し前記側端縁熱接着部に沿ってそれぞれ延設され、前記摘み部より前記開封用切目線に沿って、前記壁面シートを引裂くと共に、前記上部熱接着部で前記壁面シート間で剥離させ、さらに前記開封用切目線に沿って前記壁面シートより開封することを特徴とするものである。   Further, the present invention according to claim 2 is the easily openable gusset bag according to claim 1, wherein the opening cut line extends obliquely downward and curves downward in the vicinity of the side edge thermal bonding portion and the side edge. Each of the wall sheets is extended along the thermal bonding part, and the wall sheet is torn along the opening cut line from the knob, and is peeled between the wall sheets at the upper thermal bonding part. It opens from the said wall surface sheet along a score line, It is characterized by the above-mentioned.

また、請求項3記載の本発明は、請求項1又は2記載の易開封性ガセット袋において、前記摘み部の前記側端縁熱接着部側近傍に前記壁面シート間又は前記壁面シートと前記側面シート間に対向する前記熱接着性樹脂層面同士を熱接着してポイントシール部を設けたことを特徴とするものである。   Moreover, this invention of Claim 3 is an easily openable gusset bag of Claim 1 or 2, WHEREIN: Between the said wall edge sheet | seat near the said side edge thermal-bonding part side of the said knob | pick part, the said wall sheet and the said side surface A point seal portion is provided by thermally bonding the heat-adhesive resin layer surfaces facing each other between the sheets.

また、請求項4記載の本発明は、請求項1〜3のいずれかに記載の易開封性ガセット袋において、前記壁面シートの上端縁における前記開封用切目線の端部に開封開始手段が設けられたことを特徴とするものである。   Further, the present invention according to claim 4 is the easily openable gusset bag according to any one of claims 1 to 3, wherein an opening start means is provided at an end of the opening cut line at the upper edge of the wall sheet. It is characterized by that.

また、請求項5記載の本発明は、請求項1又は2記載の易開封性ガセット袋において、前記開封用切目線において前記摘み部に設けられた一方の前記壁面シートの上端縁から前記上部熱接着部の上側端縁間の部分が前記壁面シートを貫通する切れ目線からなることを特徴とするものである。   Further, the present invention according to claim 5 is the easily openable gusseted bag according to claim 1 or 2, wherein the upper heat from the upper edge of one of the wall surface sheets provided on the knob portion at the opening cut line. The part between the upper end edges of the bonding portion is formed by a cut line penetrating the wall sheet.

また、請求項6記載の本発明は、請求項1〜5のいずれかに記載の易開封性ガセット袋において、前記開封用切目線が前記壁面シートの前記基材層のみを貫通する間欠した切目からなることを特徴とするものである。   Moreover, this invention of Claim 6 is the easy-open gusset bag in any one of Claims 1-5. WHEREIN: The said cut line for opening penetrates only the said base material layer of the said wall surface sheet | seat. It is characterized by comprising.

請求項1、2の本発明は、壁面シートの上端縁から上部熱接着部の上側端縁に達する開封用切目線を基材層に一定の間隔で一対設けて該開封用切目線と上部熱接着部の上側端縁と壁面シートの上端縁で囲まれた部分に摘み部を設けて、摘み部より開封用切目線に沿って壁面シートを引裂くと共に、上部熱接着部で壁面シート間で剥離させ、さらに下方斜めに伸びる開封用切目線に沿って、壁面シートより開封でき、広い開封口が形成され、内容物が容易に取り出せるという効果がある。   In the first and second aspects of the present invention, a pair of opening cut lines extending from the upper end edge of the wall sheet to the upper end edge of the upper thermal bonding portion are provided in the base material layer at regular intervals, and the opening cut line and the upper heat line are provided. A knob is provided in the part surrounded by the upper edge of the adhesive part and the upper edge of the wall sheet, and the wall sheet is torn along the opening cut line from the knob, and between the wall sheets at the upper thermal adhesive part. It can be peeled and further opened from the wall sheet along the opening cut line extending obliquely downward, so that a wide opening is formed and the contents can be easily taken out.

さらに、開封用切目線に沿って、開封されるために美麗な開封口となり、それ以外の側面シートと開封用切目線を設けない他方の壁面シートとで広い開封口のトレー状容器となり内容物を手の甲や掌を汚すことなく取り出し易いという効果がある。   Furthermore, it becomes a beautiful opening because it is opened along the opening cut line, and the other side sheet and the other wall sheet without the opening cut line become a tray-like container with a wide opening. The effect is that it can be easily taken out without soiling the back or palm of the hand.

また、四隅に側端縁熱接着部を有するために該部が柱となりガセット袋としての自立性が向上し、優れた店頭効果が得られる。さらに、側部のガセット部を上下方向にすると下方向の側端縁熱接着部を脚として自立させることができ、缶状の形態とすることができる。   Further, since the side edge thermal bonding portions are provided at the four corners, the portions become pillars, so that the self-supporting property as a gusset bag is improved, and an excellent storefront effect is obtained. Furthermore, when the side gusset portion is set in the vertical direction, the lower side edge thermal bonding portion can be self-supported as a leg, and a can-like form can be obtained.

また、請求項3記載の本発明は、摘み部の側端縁熱接着部側近傍に壁面シート間又は壁面シートと側面シート間に熱接着してポイントシール部を設けることにより、容易に摘み部より開封用切目線に沿って、壁面シートの引裂き開始がスムーズになるものである。   Further, according to the present invention, the knob portion can be easily formed by providing a point seal portion in the vicinity of the side edge thermal adhesive portion side of the knob portion by thermally bonding between the wall surface sheets or between the wall surface sheet and the side sheet. The start of tearing of the wall sheet becomes smoother along the opening cut line.

また、請求項4記載の本発明は、開封開始手段を設けることにより開封用切目線からの開封を容易にするものであり、さらに、請求項5記載の本発明は摘み部に設けられた開封用切目線の部分を壁面シートを貫通する切れ目線とする構成にすることにより摘み部が容易に摘め開封開始がより一層スムーズになるものである。また、請求項6記載の本発明は、開封用切目線を基材層のみを貫通する間欠した切目とすることにより開封用切目線に沿って、壁面シートが容易に引裂けるものである。   Further, the present invention described in claim 4 facilitates the opening from the opening cut line by providing an opening start means, and further, the present invention described in claim 5 provides an opening provided in the knob. By adopting a configuration in which the cut line portion is a cut line that penetrates the wall surface sheet, the knob portion can be easily picked and the opening of the opening becomes even smoother. Further, in the present invention described in claim 6, the wall sheet is easily torn along the opening cut line by making the opening cut line into intermittent cuts penetrating only the base material layer.

本発明の実施形態について、図面を参照しながら以下に詳述する。
図1は本発明にかかる易開封性ガセット袋の第一実施形態を示す正面図であり、図2は図1のX−X線断面図であり、図3は図1の易開封性ガセット袋に内容物を収納した包装体を示す斜視図であり、図4は図3の易開封性ガセット袋の開封状態を説明する斜視図であり、図5は第二実施形態を示す正面図であり、図6は第三実施形態を示す正面図であり、図7は第四実施形態を示す正面図である。図中のA1、A1’は第一実施形態の易開封性ガセット袋、A2は第二実施形態の易開封性ガセット袋、A3は第三実施形態の易開封性ガセット袋、A4は第四実施形態の易開封性ガセット袋、A1’’はトレー状容器、Gはガセット部、Gaは山折り線、Pは上部熱接着部の上側端縁と壁面シートの上端縁と側部に設けたガセット部の内側に山折りされて形成された山折り線とで区画された領域、Qは開封片、Rは開封口、Sは側部、eは開封用切目線の終点、wは開封用切目線の湾曲点、αは摘み部の幅、βは壁面シートの上端縁から上部熱接着部の上側端縁間の長さ、1は壁面シート、2は側面シート、3は側端縁熱接着部、4は上部熱接着部、5は開封用切目線、5’は第二実施形態の開封用切目線、5aは切目、5bは切れ目線、6は摘み部、7は開封開始手段としてのV字形ノッチ、8は下部熱接着部、9はポイントシール部、10は基材層、20は熱接着性樹脂層をそれぞれ示す。
Embodiments of the present invention will be described in detail below with reference to the drawings.
1 is a front view showing a first embodiment of an easy-open gusset bag according to the present invention, FIG. 2 is a sectional view taken along line XX of FIG. 1, and FIG. 3 is an easy-open gusset bag of FIG. FIG. 4 is a perspective view illustrating a state in which the easy-open gusset bag of FIG. 3 is opened, and FIG. 5 is a front view illustrating the second embodiment. FIG. 6 is a front view showing the third embodiment, and FIG. 7 is a front view showing the fourth embodiment. In the figure, A1 and A1 ′ are the easy-open gusset bags of the first embodiment, A2 is the easy-open gusset bag of the second embodiment, A3 is the easy-open gusset bags of the third embodiment, and A4 is the fourth embodiment. Easy opening gusset bag of the form, A1 '' is a tray-like container, G is a gusset part, Ga is a mountain fold line, P is a gusset provided on the upper edge of the upper thermal bonding part, the upper edge of the wall sheet and the side part An area partitioned by a mountain fold line formed by folding inside the part, Q is an opening piece, R is an opening, S is a side part, e is an end point of an opening cut line, and w is an opening cut Curvature point of line of view, α is the width of the knob, β is the length between the upper edge of the wall sheet and the upper edge of the upper thermal bonding section, 1 is the wall sheet, 2 is the side sheet, 3 is the side edge thermal bonding , 4 is the upper heat-bonding part, 5 is the opening cut line, 5 'is the opening cut line of the second embodiment, 5a is the cut line, 5b is the cut line, and 6 is the cut line. Parts, 7 denotes a V-shaped notch as the opening starting means, 8 is lower heat seal portion, the point seal portion 9, 10 base layers, 20 heat-adhesive resin layer, respectively.

図1は本発明にかかる易開封性ガセット袋の第一実施形態を示す正面図であり、図2は図1のX−X線断面図であって、開封用切目線と易開封性ガセット袋を折り畳んだ状態でガセット部の山折り線との交点付近における断面図である。図1、図2に示すように本発明にかかる易開封性ガセット袋A1は、基材層10と熱接着性樹脂層20が積層された一対の壁面シート1と一対の側面シート2とからなり、一対の壁面シート1の熱接着性樹脂層20、20面同士を対向させて配置し、一対の側面シート2の熱接着性樹脂層20を外面にして中央で内側に山折りし、壁面シート1、1間の両側の側部S、Sに、それぞれ挿入し、壁面シート1と側面シート2の対向する熱接着性樹脂層20、20面同士の側端縁で熱接着して側端縁熱接着部3を四隅に形成し、ガセット部Gを設け、上部に側端縁熱接着部3に直交する上部熱接着部4を備えた四隅シールガセット袋である。上部熱接着部4は壁面シート1、1間で剥離可能に熱接着されている。下端には下部熱接着部8を備え、易開封性ガセット袋A1に内容物を収納後、熱接着して密封される。図1では未接着の状態であり、点線で示している。   FIG. 1 is a front view showing a first embodiment of an easily openable gusset bag according to the present invention, and FIG. 2 is a sectional view taken along line XX of FIG. It is sectional drawing in the intersection vicinity with the mountain fold line of a gusset part in the state which folded up. As shown in FIGS. 1 and 2, the easy-open gusset bag A1 according to the present invention includes a pair of wall sheets 1 and a pair of side sheets 2 in which a base layer 10 and a heat-adhesive resin layer 20 are laminated. The heat-adhesive resin layers 20 and 20 of the pair of wall sheets 1 are arranged so as to face each other, and the heat-adhesive resin layers 20 of the pair of side sheets 2 are arranged on the outer surface and folded inward at the center. 1 and 1 are inserted into the side portions S, S on both sides, respectively, and the heat-adhesive resin layers 20 facing the wall sheet 1 and the side sheet 2 are thermally bonded at the side edges of the two sides, and the side edges This is a four-corner seal gusset bag in which the thermal bonding part 3 is formed at the four corners, the gusset part G is provided, and the upper thermal bonding part 4 perpendicular to the side edge thermal bonding part 3 is provided on the upper part. The upper thermal bonding part 4 is thermally bonded so as to be peelable between the wall sheets 1 and 1. A lower heat bonding portion 8 is provided at the lower end, and the contents are stored in an easy-open gusset bag A1 and then thermally bonded and sealed. In FIG. 1, it is in an unbonded state and is indicated by a dotted line.

上部熱接着部4は壁面シート1の上端縁より所定長さ下方に寄せて設け、上部熱接着部4の上側端縁と壁面シート1の上端縁と側部Sに設けたガセット部Gの内側に山折りされて形成された山折り線Gaとで区画された領域P(格子柄で示す部分)に一方の壁面シート1の上端縁から上部熱接着部4の上側端縁に達する開封用切目線5が基材層10に一定の間隔αで一対設けられ、開封用切目線5、5と上部熱接着部4の上側端縁と壁面シート1の上端縁で囲まれた部分に摘み部6を設けている。一定の間隔は摘み部6の幅αに相当するものである。   The upper thermal bonding part 4 is provided at a predetermined length below the upper edge of the wall sheet 1, and the upper edge of the upper thermal bonding part 4, the upper edge of the wall sheet 1, and the inner side of the gusset part G provided on the side part S. Opening cut that reaches the upper edge of the upper thermal bonding part 4 from the upper edge of one wall surface sheet 1 to a region P (part indicated by a lattice pattern) partitioned by a mountain fold line Ga formed by mountain folding A pair of eyes 5 is provided on the base material layer 10 at a constant interval α, and a knob 6 is formed in a portion surrounded by the opening cut lines 5 and 5, the upper edge of the upper thermal bonding part 4, and the upper edge of the wall sheet 1. Is provided. The constant interval corresponds to the width α of the knob 6.

開封用切目線5は上部熱接着部4を略垂直に跨ぎ下方斜めに伸び側端縁熱接着部3、3近傍で下方に湾曲し側端縁熱接着部3、3に沿ってそれぞれ延設されている。壁面シート1の上端縁には開封開始手段としてV字形ノッチ7が設けられ、V字形ノッチ7の尖端は開封用切目線5に連結している。このような構成とすることにより摘み部6よりV字形ノッチ7、7を開封開始起点として開封用切目線5、5に沿って、壁面シート1を引裂くと共に、上部熱接着部4に到達すると壁面シート1、1間で剥離させ、さらに開封用切目線5、5に沿って壁面シート1を引裂き開封することができる。なお、開封開始手段を設けるほうが、容易に開封できるので好ましく、上記のV字形ノッチ以外にI字形ノッチ、U字形ノッチ、亀甲形ノッチ等を用いることができる。また、開封開始手段の尖端、例えばV字形ノッチ7の尖端は、上部熱接着部4の上側端縁に達するように設けるほうが、開封の開始がスムーズとなるのでより好ましい。   The unsealing cut line 5 extends substantially diagonally across the upper thermal bonding portion 4 and extends downward along the side edge thermal bonding portions 3, 3. Has been. A V-shaped notch 7 is provided at the upper end edge of the wall sheet 1 as an opening start means, and the tip of the V-shaped notch 7 is connected to the opening cut line 5. With such a configuration, when tearing the wall sheet 1 along the opening cut lines 5 and 5 from the knob 6 with the V-shaped notches 7 and 7 as the starting point of opening, and reaching the upper thermal bonding part 4 The wall sheet 1 can be peeled between the wall sheets 1 and 1, and the wall sheet 1 can be torn and opened along the opening cut lines 5 and 5. In addition, it is preferable to provide the opening start means because it can be opened easily. In addition to the V-shaped notches, I-shaped notches, U-shaped notches, turtle-shaped notches, and the like can be used. Further, it is more preferable to provide the tip of the opening start means, for example, the tip of the V-shaped notch 7 so as to reach the upper end edge of the upper thermal bonding portion 4 because the opening of the opening becomes smooth.

基材層10に設けられた開封用切目線5、5間の一定の間隔(摘み部の幅)αは領域P内であれば特に限定されるものではないが指で摘める程度の間隔が好ましく、通常10mm〜50mm程度でガセット部Gの山折り線Ga間の中央に位置するように設ける。開封用切目線5は屈曲線、曲線もしくはそれらの組合せで設ければよい。開封用切目線5は、間欠した切目5aからなり、基材層10を貫通しているほうが好ましい。切目5aの長さは0.3〜2.0mmが好ましく、さらに、0.5〜1.5mmがより好ましい。切目5aの間隔(非切目)の長さは0.3〜1.0mmが好ましく、さらには、0.5〜0.8mmが好ましい。非切目の長さが1.0mmを超えると開封方向が開封用切目線5から外れることがある。また、0.3mm未満では非切目が壁面シート1、側面シート2の積層体の製造中に切れる場合があり、また、製造中に積層体の切断やシワ発生原因となるために好ましくない。   The constant interval (width of the knob) α between the opening cut lines 5 and 5 provided on the base material layer 10 is not particularly limited as long as it is within the region P, but there is an interval enough to be picked with a finger. Preferably, it is provided so that it may be located in the center between the mountain fold lines Ga of the gusset part G at about 10 mm to 50 mm. The opening cut line 5 may be provided by a bent line, a curve, or a combination thereof. It is preferable that the opening cut line 5 includes intermittent cuts 5 a and penetrates the base material layer 10. The length of the cut 5a is preferably 0.3 to 2.0 mm, and more preferably 0.5 to 1.5 mm. The length of the gap 5a (non-cut) is preferably 0.3 to 1.0 mm, and more preferably 0.5 to 0.8 mm. If the length of the non-cut exceeds 1.0 mm, the opening direction may deviate from the opening cut line 5. On the other hand, if it is less than 0.3 mm, the uncut line may be cut during the production of the laminate of the wall sheet 1 and the side sheet 2, and it is not preferable because the laminate may be cut or wrinkled during the production.

次に壁面シート1、側面シート2を構成する基材層10、熱接着性樹脂層20について説明する。基材層10にはポリプロピレン、ポリエチレンテレフタレート、ナイロン、ポリ塩化ビニリデン、ポリビニルアルコール、エチレン・ビニルアルコール共重合体等の二軸延伸、一軸延伸又は未延伸フィルムや出発原料を植物由来とする例えばポリ乳酸系の二軸延伸フィルム、さらには上記各フィルムに対してポリ塩化ビニリデン、ポリビニルアルコール等のガスバリア性組成物をコーティングしたフィルムあるいは酸化アルミニウム等の金属酸化物や酸化珪素等の無機物を蒸着したフィルムなどが用いられる。これらのフィルムは任意の厚さのものが適用されるが、通常の包装用としては、9〜50μm程度のものが用いられる。   Next, the base material layer 10 and the thermoadhesive resin layer 20 constituting the wall surface sheet 1 and the side surface sheet 2 will be described. For the base material layer 10, biaxially stretched, uniaxially stretched or unstretched film such as polypropylene, polyethylene terephthalate, nylon, polyvinylidene chloride, polyvinyl alcohol, ethylene / vinyl alcohol copolymer, etc. Biaxially stretched films of the above-mentioned type, and films coated with a gas barrier composition such as polyvinylidene chloride and polyvinyl alcohol on the above films, or films deposited with metal oxides such as aluminum oxide and inorganic substances such as silicon oxide, etc. Is used. These films may be of any thickness, but those having a thickness of about 9 to 50 μm are used for ordinary packaging.

また、上記の基材層10には通常のグラビア印刷あるいはフレキソ印刷により印刷層を設けることができ、該印刷に使用される印刷インキとしては公知のグラビアインキ、フレキソインキを用いることができ、基材層10に用いるフィルムと良好に接着するインキを選定すればよい。   The base material layer 10 can be provided with a printing layer by ordinary gravure printing or flexographic printing, and known gravure ink and flexographic ink can be used as the printing ink used for the printing. What is necessary is just to select the ink which adhere | attaches favorably with the film used for the material layer 10. FIG.

また、易開封性ガセット袋A1に収納される内容物により、易開封性ガセット袋A1に要求される酸素透過度、水蒸気透過度、遮光性、突刺し強度、落下強度等の物性が異なり、これらの要求物性を満足するように基材層10と熱接着性樹脂層20の間に中間層としてアルミニウム箔、アルミニウム蒸着プラスチックフィルム、酸化アルミニウム等の金属酸化物や酸化珪素等の無機物を蒸着したプラスチックフィルム、ポリビニルアルコール等のガスバリア性組成物をコーティングしたプラスチックフィルム及びエチレンビニルアルコール共重合体フィルム等のバリア性を有するフィルムを用いることができる。   In addition, depending on the contents stored in the easy-open gusset bag A1, physical properties such as oxygen permeability, water vapor permeability, light shielding, puncture strength, and drop strength required for the easy-open gusset bag A1 are different. A plastic in which an inorganic material such as an aluminum foil, an aluminum vapor-deposited plastic film, a metal oxide such as aluminum oxide, or silicon oxide is deposited as an intermediate layer between the base material layer 10 and the heat-adhesive resin layer 20 so as to satisfy the required physical properties of A film having a barrier property such as a film, a plastic film coated with a gas barrier composition such as polyvinyl alcohol, and an ethylene vinyl alcohol copolymer film can be used.

熱接着性樹脂層20には、低密度ポリエチレン、直鎖状低密度ポリエチレン、中密度ポリエチレン、高密度ポリエチレン、エチレン・酢酸ビニル共重合体、アイオノマー、ポリプロピレンないしは易剥離性熱接着性樹脂(EPR)等をフィルム又はエクストルージョンラミネーションして使用される。なお、EPRの易剥離性を付与する方法として表面に接着力の弱い薄層を設けた多層構成とする方法や、相溶性の少ない樹脂をブレンドするなどの構成により易剥離性を発現させる方法などの公知のものが適宜採用される。上記の各層はドライラミネーション法やエクストルージョンラミネーション法等の公知の技法により積層され壁面シート1、側面シート2用の積層体が構成される。   The thermal adhesive resin layer 20 includes low density polyethylene, linear low density polyethylene, medium density polyethylene, high density polyethylene, ethylene / vinyl acetate copolymer, ionomer, polypropylene or easily peelable thermal adhesive resin (EPR). Etc. are used by film or extrusion lamination. In addition, as a method for imparting easy peelability of EPR, a method of forming a multilayer structure in which a thin layer having a weak adhesive force is provided on the surface, a method of expressing easy peelability by a configuration such as blending a resin having low compatibility, etc. These known ones are appropriately employed. Each of the above layers is laminated by a known technique such as a dry lamination method or an extrusion lamination method to form a laminate for the wall surface sheet 1 and the side sheet 2.

なお、壁面シート1と側面シート2に用いる熱接着性樹脂層20は、同じものを用いることもできるが、異なる樹脂の組合せ、例えば壁面シート1と側面シート2との間で剥離させたい場合、壁面シート1の熱接着性樹脂層20にはEPR、側面シート2の熱接着性樹脂層20には直鎖状低密度ポリエチレンを採用することにより、側端縁熱接着部3の壁面シート1と側面シート2との剥離性のコントロールが容易となるので好ましい。   In addition, although the same thing can also be used for the heat-adhesive resin layer 20 used for the wall surface sheet 1 and the side surface sheet 2, when it is desired to peel off a combination of different resins, for example, between the wall surface sheet 1 and the side surface sheet 2, By adopting EPR for the heat-adhesive resin layer 20 of the wall sheet 1 and linear low density polyethylene for the heat-adhesive resin layer 20 of the side sheet 2, the wall sheet 1 of the side edge heat-bonding portion 3 and This is preferable because the peelability from the side sheet 2 can be easily controlled.

次に、易開封性ガセット袋A1の製造方法について壁面シート1及び側面シート2に中間層を積層する場合を代表例として説明する。まず壁面シート1は基材層10には印刷と同時に例えば、ロータリーダイロール等により所定の位置に開封用切目線5を入れることができる。また、印刷後、所定の位置に例えば、ロータリーダイカッターやパルス発振タイプのレーザー照射等により開封用切目線5を入れてもよい。その後、中間層、熱接着性樹脂層20を順次、ドライラミネーション法又はエクストルージョンラミネーション法で積層し、壁面シート1用の積層体の巻取が製造される。側面シート2は、基材層10、中間層、熱接着性樹脂層20を順次、ドライラミネーション法又はエクストルージョンラミネーション法で積層し、側面シート2用の積層体の巻取が製造される。その後、周知のガセット製袋機や自立袋製袋機等により、壁面シート1及び側面シート2用の巻取をそれぞれの給紙部より繰り出しながら易開封性ガセット袋A1が製袋される。なお、開封用切目線5は、壁面シート1用の積層体の製造時点で設けることなく、製袋工程で壁面シート1用の積層体の巻取を巻き戻しながら、印刷見当に合せて所定位置にパルス発振タイプのレーザー照射等により開封用切目線5を基材層10に設けてもよい。   Next, the case where an intermediate | middle layer is laminated | stacked on the wall surface sheet 1 and the side surface sheet 2 is demonstrated as a representative example about the manufacturing method of easily openable gusset bag A1. First, in the wall surface sheet 1, the opening cut line 5 can be put in a predetermined position simultaneously with printing on the base material layer 10 by, for example, a rotary die roll. Further, after printing, the opening cut line 5 may be put at a predetermined position by, for example, rotary die cutter or pulse oscillation type laser irradiation. Thereafter, the intermediate layer and the heat-adhesive resin layer 20 are sequentially laminated by the dry lamination method or the extrusion lamination method, and the winding of the laminate for the wall sheet 1 is manufactured. In the side sheet 2, the base material layer 10, the intermediate layer, and the heat-adhesive resin layer 20 are sequentially laminated by a dry lamination method or an extrusion lamination method, and winding of the laminated body for the side sheet 2 is manufactured. Thereafter, the easy-open gusset bag A1 is made by a well-known gusset bag making machine, a self-supporting bag making machine, or the like while unwinding the wall sheet 1 and the side sheet 2 from the respective paper feeding units. The opening cut line 5 is not provided at the time of manufacture of the laminate for the wall surface sheet 1, and is laid out at a predetermined position in accordance with the printing register while rewinding the winding of the laminate for the wall sheet 1 in the bag making process. Alternatively, the opening cut line 5 may be provided in the base material layer 10 by pulsed laser irradiation or the like.

次に図3、図4を用いて本発明にかかる易開封性ガセット袋A1の使用方法について説明する。図3は図1の易開封性ガセット袋A1に内容物を収納した包装体を示す斜視図であり、未接着の下部熱接着部8(図1参照)より内容物を収納し下部熱接着部8で熱接着して密封した状態を示している。図3に示すように包装体を開封するには、一方の手指で一方の壁面シート1に設けられた摘み部6を摘み、他方の手指で他方の壁面シート1の摘み部6に対向する部分を摘み、相反する方向に引っ張るとV字形ノッチ7、7の尖端を起点として開封用切目線5、5に沿って壁面シート1を引裂くと共に、図4に示すように上部熱接着部4で壁面シート1、1間で剥離させ、さらに下方斜めに伸びる開封用切目線5、5に沿って、壁面シート1が引裂かれ開封片Qが形成されると共に開封口Rが形成される。   Next, the usage method of the easy-open gusset bag A1 concerning this invention is demonstrated using FIG. 3, FIG. FIG. 3 is a perspective view showing a package in which the contents are stored in the easy-open gusset bag A1 of FIG. 1, and the contents are stored in the lower thermal bonding portion 8 (see FIG. 1) that is not bonded to the lower thermal bonding portion. 8 shows a state of being thermally bonded and sealed. As shown in FIG. 3, in order to open the package body, a gripping portion 6 provided on one wall sheet 1 is picked with one finger, and a portion facing the gripping portion 6 of the other wall sheet 1 with the other finger And tearing the wall sheet 1 along the opening cut lines 5 and 5 starting from the sharp ends of the V-shaped notches 7 and 7, and as shown in FIG. The wall surface sheet 1 is torn along the opening cut lines 5 and 5 which are separated between the wall surface sheets 1 and 1 and extend obliquely downward, whereby an opening piece Q and an opening R are formed.

このような構成とすることにより、図4に示すように壁面シート1に形成された開封口Rは美麗で広いものとなり、それ以外の側面シート2、2と開封用切目線を設けない他方の壁面シート1とで広い開封口を有するトレー状容器A’’が構成され、図示しないが内容物を手の甲や掌を汚すことなく取り出し易いという効果がある。なお、易開封性ガセット袋A1’で包装された包装体は側端縁熱接着部3を有するためにその部分に剛度が得られ、側部のガセット部Gを上下方向にすると下方向の側端縁熱接着部3を脚として自立させることができ、缶状の形態とすることもでき、店頭での陳列効果を高めることもできる。   With such a configuration, the opening R formed in the wall sheet 1 is beautiful and wide as shown in FIG. 4, and the other side sheets 2 and 2 and the other not provided with the opening cut line. The wall-shaped sheet 1 forms a tray-like container A ″ having a wide opening, and although not shown, the contents can be easily taken out without soiling the back and palm of the hand. In addition, since the package body packaged by the easy-open gusset bag A1 ′ has the side edge thermal bonding portion 3, rigidity is obtained in that portion, and when the gusset portion G of the side portion is set in the vertical direction, the downward side The edge thermal bonding part 3 can be made self-supporting as a leg, can be in the form of a can, and can enhance the display effect at the store.

図5は本発明にかかる易開封性ガセット袋の第二実施形態を示す正面図である。図5に示すように易開封性ガセット袋A2の開封用切目線5’、5’は上部熱接着部4を略垂直に跨ぎ下方斜めに伸び側端縁熱接着部3、3に跨って該側端縁熱接着部3、3の外側端縁の終点eまでそれぞれ延設されている。壁面シート1の上端縁には開封開始手段としてV字形ノッチ7が設けられ、V字形ノッチ7の尖端は開封用切目線5’に連結している。その他は第一実施形態と同じである。このような構成とすることにより摘み部6よりV字形ノッチ7、7を開封開始起点として開封用切目線5’、5’に沿って、壁面シート1を引裂くと共に、上部熱接着部4に到達すると壁面シート1、1間で剥離され、さらに開封用切目線5’、5’に沿って壁面シート1を引裂き、側端縁熱接着部3、3に到達し、その後、側面シート2と壁面シート1との間で剥離され美麗で広い開封口が形成される。   FIG. 5 is a front view showing a second embodiment of the easy-open gusset bag according to the present invention. As shown in FIG. 5, the opening cut lines 5 ′ and 5 ′ of the easy-open gusset bag A 2 extend across the upper thermal bonding portion 4 substantially diagonally and obliquely extend downward and across the side edge thermal bonding portions 3 and 3. The side edge thermal bonding portions 3 and 3 extend to the end point e of the outer edge. A V-shaped notch 7 is provided at the upper end edge of the wall sheet 1 as opening opening means, and the tip of the V-shaped notch 7 is connected to the opening cut line 5 '. Others are the same as the first embodiment. With such a configuration, the wall surface sheet 1 is torn along the opening cut lines 5 ′ and 5 ′ from the picking portion 6 with the V-shaped notches 7 and 7 as the opening start point, and the upper thermal bonding portion 4 is formed. When it reaches, it is peeled between the wall sheets 1 and 1, further tears the wall sheet 1 along the opening cut lines 5 ′ and 5 ′, reaches the side edge thermal bonding portions 3 and 3, and then the side sheet 2 and It is peeled from the wall sheet 1 to form a beautiful and wide opening.

図6は本発明にかかる易開封性ガセット袋の第三実施形態を示す正面図である。図6に示すように易開封性ガセット袋A3は摘み部6の側端縁熱接着部3、3側近傍に壁面シート1、1間に対向する熱接着性樹脂層20の面同士を熱接着してポイントシール部9を設けた構成である。ポイントシール部9を設けた以外は第一実施形態と同様である。摘み部6の幅αを山折り線Gaに近似したものに設定する場合にはポイントシール部9は壁面シート1と側面シート2間に対向する熱接着性樹脂層20の面同士を熱接着して設けてもよい。このような構成とすることにより容易に摘み部6より開封用切目線5、5に沿って、壁面シート1の引裂き開始がスムーズになるものである。なお、ポイントシール部9は製袋工程で設けることができ、接着強度は開封用切目線5に沿って壁面シート1を引裂く引裂き強度より大きくなるように熱接着することが重要である。   FIG. 6 is a front view showing a third embodiment of the easy-open gusset bag according to the present invention. As shown in FIG. 6, the easy-open gusseted bag A3 is formed by thermally bonding the surfaces of the heat-adhesive resin layer 20 facing each other between the wall surface sheet 1 and 1 near the side edge thermal bonding portion 3 and 3 side of the knob 6. Thus, the point seal portion 9 is provided. Except that the point seal portion 9 is provided, it is the same as the first embodiment. When the width α of the knob portion 6 is set to approximate the mountain fold line Ga, the point seal portion 9 thermally bonds the surfaces of the thermoadhesive resin layer 20 facing each other between the wall sheet 1 and the side sheet 2. May be provided. By adopting such a configuration, the tearing of the wall sheet 1 can be easily started along the opening cut lines 5 and 5 from the knob portion 6. The point seal portion 9 can be provided in the bag making process, and it is important that the adhesive strength is thermally bonded so as to be larger than the tear strength for tearing the wall surface sheet 1 along the opening cut line 5.

図7は本発明にかかる易開封性ガセット袋の第四実施形態を示す正面図である。図7に示すように易開封性ガセット袋A4は開封用切目線5において摘み部6に設けられた一方の壁面シート1の上端縁から上部熱接着部4の上側端縁間の長さβの部分が壁面シート1を貫通する切れ目線5bで構成されている。切れ目線5bは少なくとも上部熱接着部4に接するか又は少し重なるように設けるほうが好ましい。第一実施形態とは切れ目線5bが設けられている点と開封開始手段が設けられていない点で異なる以外は第一実施形態と同じである。このような構成とすることにより摘み部6が容易に摘め開封開始がより一層スムーズになるものである。なお、切れ目線5bは、壁面シート1用の積層体の製造後、ロータリーダイカッターを備えた打抜き機で設けることもできるが、切れ目線5bの打抜型を備えた製袋機を用いて製袋工程で壁面シート1用の積層体の巻取を巻き戻しながら、印刷見当に合せて所定位置に壁面シート1を貫通する切れ目線5bを設けるとよい。   FIG. 7 is a front view showing a fourth embodiment of the easy-open gusset bag according to the present invention. As shown in FIG. 7, the easy-open gusset bag A4 has a length β between the upper edge of one wall surface sheet 1 provided on the knob 6 at the opening cut line 5 and the upper edge of the upper thermal bonding section 4. A portion is formed by a cut line 5 b penetrating the wall sheet 1. It is preferable to provide the cut line 5b so as to be in contact with or slightly overlap at least the upper thermal bonding portion 4. This embodiment is the same as the first embodiment except that the first embodiment is different from the first embodiment in that the cut line 5b is provided and the opening start means is not provided. By adopting such a configuration, the knob portion 6 can be easily picked and the opening of the opening becomes smoother. The cut line 5b can be provided by a punching machine equipped with a rotary die cutter after the laminate for the wall surface sheet 1 is manufactured, but bag making is performed using a bag making machine equipped with a punching die for the cut line 5b. It is good to provide the cut line 5b which penetrates the wall surface sheet 1 in a predetermined position according to printing registration, rewinding winding of the laminated body for wall surface sheets 1 at a process.

次に、本発明について、以下に実施例を挙げてさらに詳しく説明する。
壁面シートの基材層に厚さ12μmの片面コロナ処理した二軸延伸ポリエチレンテレフタレートフィルム(PET)を用いてコロナ処理面にグラビア印刷法により所定の印刷を行ない印刷層を設け、該印刷層にポリエステル−イソシアネート系接着剤を介して中間層に厚さ7μmのアルミニウム箔(ALM)を用いてドライラミネーション法(DL)により積層して、さらにALM面にポリエステル−イソシアネート系接着剤を介して熱接着性樹脂層に厚さ30μmの易剥離性熱接着性樹脂(EPR)を用いてドライラミネーション法により積層して壁面シート用積層体(PET/DL/ALM/DL/EPR)を作製した。なお、EPRには、東セロ株式会社製の銘柄CMPS013を用いた。
Next, the present invention will be described in more detail with reference to the following examples.
Using a biaxially stretched polyethylene terephthalate film (PET) with a single-sided corona treatment having a thickness of 12 μm on the base material layer of the wall sheet, a predetermined printing is performed on the corona-treated surface by a gravure printing method. -Laminate by dry lamination (DL) using 7μm thick aluminum foil (ALM) on the intermediate layer via isocyanate adhesive, and heat adhesiveness on the ALM surface via polyester-isocyanate adhesive A laminate for wall sheet (PET / DL / ALM / DL / EPR) was prepared by laminating by a dry lamination method using an easily peelable thermoadhesive resin (EPR) having a thickness of 30 μm on the resin layer. In addition, brand CMPS013 by Tosero Co., Ltd. was used for EPR.

側面シートの基材層に厚さ12μmのPET、中間層に厚さ7μmのALM、熱接着性樹脂層に厚さ30μmの直鎖状低密度ポリエチレン(LLDPE)を用いて接着剤を介して順次、ドライラミネーション法により積層して側面シート用積層体(PET/印刷/AD/VMPET/AD/LLDPE)を作製した。なお、接着剤は壁面シート用積層体に用いた接着剤と同じものを使用した。   Sequentially through an adhesive using PET with a thickness of 12 μm for the base layer of the side sheet, ALM with a thickness of 7 μm for the intermediate layer, and a linear low density polyethylene (LLDPE) with a thickness of 30 μm for the thermal adhesive resin layer. The laminate for the side sheet (PET / printing / AD / VMPET / AD / LLDPE) was prepared by laminating by the dry lamination method. The adhesive used was the same as that used for the wall sheet laminate.

上記の壁面シート、側面シート用積層体を所定の寸法にスリッターして、パルス発振タイプのレーザー照射を装備した自立袋製袋機を用いて、壁面シート用積層体の印刷に同調させて所定位置に開封用切目線を基材層に設けて下記の易開封性ガセット袋A1を作製した。
易開封性ガセット袋寸法:上下150mm×左右80mm
側端縁熱接着部シール幅:5mm
上部熱接着部シール幅 :5mm
ガセット部折り込み幅 :20mm(展開寸法:40mm)
摘み部の幅α :20mm
Vカット上下寸法 :3mm
開封用切目線:V字形ノッチの位置を起点とし側端縁熱接着部近傍での湾曲点wとする曲線を下記のように設けた。
湾曲点w:壁面シート上端縁より下部熱接着部側に15mm
切目の長さ:1.5mm
切目の間隔:0.5mm
なお、上部熱接着部は上端縁より3.0mm離して設けた。
Slitting the above-mentioned wall sheet and side sheet laminate to a predetermined size and using a self-supporting bag making machine equipped with pulse oscillation type laser irradiation to synchronize with the printing of the wall sheet laminate at a predetermined position An opening score line was provided on the base material layer to prepare the following easy-open gusset bag A1.
Easy-open gusset bag dimensions: 150mm x 80mm
Side edge thermal bonding part seal width: 5mm
Upper thermal bonding part seal width: 5 mm
Gusset part folding width: 20 mm (expanded dimension: 40 mm)
Knob width α: 20 mm
V-cut vertical dimension: 3 mm
Opening cut line: A curve having a starting point at the position of the V-shaped notch and a bending point w in the vicinity of the side edge thermal bonding portion was provided as follows.
Inflection point w: 15 mm from the upper edge of the wall sheet to the lower thermal bonding part side
Cut length: 1.5mm
Incision spacing: 0.5mm
The upper thermal bonding part was provided 3.0 mm away from the upper edge.

実施例1で作製した壁面シート用積層体、側面シート用積層体を用いて所定の寸法にスリッターして、パルス発振タイプのレーザー照射を装備した自立袋製袋機を用いて、壁面シート用積層体の印刷に同調させて所定位置に開封用切目線を基材層に設けて下記の易開封性ガセット袋A2を作製した。
易開封性ガセット袋寸法:上下150mm×左右80mm
側端縁熱接着部シール幅:5mm
上部熱接着部シール幅 :5mm
ガセット部折り込み幅 :20mm(展開寸法:40mm)
摘み部の幅α :20mm
Vカット上下寸法 :3mm
開封用切目線:V字形ノッチの位置を起点とし側端縁熱接着部の外縁を終点eとする曲線を下記のように設けた。
終点e :壁面シート上端縁より下部熱接着部側に15mm
切目の長さ:1.5mm
切目の間隔:0.5mm
なお、上部熱接着部は上端縁より3.0mm離して設けた。
Using the self-standing bag making machine equipped with the pulse oscillation type laser irradiation, slitting to a predetermined size using the laminate for wall sheet and the laminate for side sheet prepared in Example 1, lamination for wall sheet The following easy-opening gusset bag A2 was prepared by providing a cut line for opening at a predetermined position in synchronization with the printing of the body on the base material layer.
Easy-open gusset bag dimensions: 150mm x 80mm
Side edge thermal bonding part seal width: 5mm
Upper thermal bonding part seal width: 5 mm
Gusset part folding width: 20 mm (expanded dimension: 40 mm)
Knob width α: 20 mm
V-cut vertical dimension: 3 mm
Opening cut line: A curve having the V-shaped notch as the starting point and the outer edge of the side edge thermal bonding portion as the end point e was provided as follows.
End point e: 15 mm from the upper edge of the wall sheet to the lower thermal bonding part side
Cut length: 1.5mm
Incision spacing: 0.5mm
The upper thermal bonding part was provided 3.0 mm away from the upper edge.

実施例1で作製した壁面シート用積層体、側面シート用積層体を用いて所定の寸法にスリッターして、パルス発振タイプのレーザー照射を装備した自立袋製袋機を用いて、壁面シート用積層体の印刷に同調させて所定位置に開封用切目線を基材層に設けて易開封性ガセット袋A3を作製した。実施例1と同じ寸法、形態でポイントシール部のみ下記のように設けた。
ポイントシール位置:側端縁熱接着部の外縁より37mm
壁面シート上端縁より1.5mm
ポイントシールの大きさ:外径1mmの円形状
Using the self-standing bag making machine equipped with the pulse oscillation type laser irradiation, slitting to a predetermined size using the laminate for wall sheet and the laminate for side sheet prepared in Example 1, lamination for wall sheet An easy-to-open gusset bag A3 was prepared by providing a cut line for opening at a predetermined position in synchronization with the printing of the body on the base material layer. Only the point seal portion with the same dimensions and configuration as in Example 1 was provided as follows.
Point seal position: 37 mm from the outer edge of the thermal bonding part on the side edge
1.5mm from top edge of wall sheet
Point seal size: Circular shape with an outer diameter of 1 mm

実施例1で作製した壁面シート用積層体、側面シート用積層体を用いて所定の寸法にスリッターして、所定の切れ目線の打抜型とパルス発振タイプのレーザー照射を装備した自立袋製袋機を用いて、壁面シート用積層体の印刷に同調させて打抜機で所定位置に壁面シートを貫通する切れ目線を設け、レーザー照射装置で開封用切目線を基材層に設けて易開封性ガセット袋A4を作製した。実施例1と同じ寸法、形態で切れ目線のみ下記のように設けた。
切れ目線の長さ:壁面シートの上端縁より3.5mm
A self-supporting bag making machine equipped with a predetermined cut line punching type and a pulse oscillation type laser irradiation, slitting to a predetermined size using the wall sheet laminate and side sheet laminate produced in Example 1 In combination with the printing of the wall sheet laminate, a punching machine is used to provide a score line that penetrates the wall sheet at a predetermined position, and a laser irradiation device is used to provide an opening score line on the base material layer. A bag A4 was produced. Only the cut line was provided as follows in the same dimensions and form as in Example 1.
Cut line length: 3.5 mm from the upper edge of the wall sheet

実施例1〜4で作製した易開封性ガセット袋A1、A2、A3、A4にポテトチップをそれぞれ封入し下部熱接着部で熱接着して密封した。その後、易開封性ガセット袋の摘み部を一方の手指で摘み、他方の手指で他方の壁面シートの摘み部に対向する部分を摘み、相反する方向に引っ張って包装体を開封したところ、易開封性ガセット袋A1、A3、A4はV字形ノッチの尖端を起点として開封用切目線に沿って壁面シートを引裂くと共に、上部熱接着部で壁面シート間で容易に剥離でき、さらに開封用切目線に沿って、壁面シートを引裂くことができ、美麗で広い開封口が形成され、ポテトチップを最後まで容易に取り出すことができた。易開封性ガセット袋A2については、摘み部よりV字形ノッチを開封開始起点として開封用切目線に沿って、壁面シートを引裂くと共に、上部熱接着部に到達すると壁面シート間で剥離でき、さらに開封用切目線に沿って壁面シートを引裂くことができ、側端縁熱接着部に到達後は側面シートと壁面シートとの間で剥離でき、美麗で広い開封口が形成でき、ポテトチップを最後まで容易に取り出すことができた。   Potato chips were encapsulated in the easy-open gusset bags A1, A2, A3, and A4 prepared in Examples 1 to 4, respectively, and heat-bonded at the lower heat-bonding portion and sealed. Then, pick the pick part of the easy-open gusset bag with one finger, pick the part facing the pick part of the other wall sheet with the other finger, and pull it in the opposite direction to open the package. The adhesive gusset bags A1, A3, A4 can tear the wall sheet along the opening cut line starting from the tip of the V-shaped notch, and can be easily peeled between the wall sheet at the upper thermal bonding part, and the opening cut line The wall sheet could be torn along the line, a beautiful and wide opening was formed, and the potato chip could be easily removed to the end. For the easy-open gusset bag A2, the wall-shaped sheet is torn along the opening cut line starting from the V-shaped notch from the knob, and can be peeled between the wall-sheets when reaching the upper thermal bonding section The wall sheet can be torn along the opening cut line, and after reaching the side edge thermal bonding part, it can be peeled off between the side sheet and the wall sheet, and a beautiful and wide opening can be formed. It was easily removed to the end.

本発明にかかる易開封性ガセット袋の第一実施形態を示す正面図である。It is a front view which shows 1st embodiment of the easily openable gusset bag concerning this invention. 図1のX−X線断面図である。It is the XX sectional view taken on the line of FIG. 図1の易開封性ガセット袋に内容物を収納した包装体を示す斜視図である。It is a perspective view which shows the package which accommodated the content in the easily openable gusset bag of FIG. 図3の易開封性ガセット袋の開封状態を説明する斜視図である。It is a perspective view explaining the opening state of the easily openable gusset bag of FIG. 第二実施形態を示す正面図である。It is a front view which shows 2nd embodiment. 第三実施形態を示す正面図である。It is a front view which shows 3rd embodiment. 第四実施形態を示す正面図である。It is a front view which shows 4th embodiment.

符号の説明Explanation of symbols

1 壁面シート
2 側面シート
3 側端縁熱接着部
4 上部熱接着部
5、5’ 開封用切目線
5a 切目
5b 切れ目線
6 摘み部
7 V字形ノッチ
8 下部熱接着部
9 ポイントシール部
10 基材層
20 熱接着性樹脂層
A1、A1’ 易開封性ガセット袋
A2、A3、A4 易開封性ガセット袋
A1’’ トレー状容器
G ガセット部
Ga 山折り線
P 領域
Q 開封片
R 開封口
S 側部
e 終点
w 湾曲点
α 摘み部の幅
β 壁面シートの上端縁から上部熱接着部の上側端縁間の長さ
DESCRIPTION OF SYMBOLS 1 Wall sheet 2 Side sheet 3 Side edge thermal bonding part 4 Upper thermal bonding part 5, 5 'Opening cut line 5a Cut line 5b Cut line 6 Knob part 7 V-shaped notch 8 Lower thermal bonding part 9 Point seal part 10 Base material Layer 20 Heat-adhesive resin layer A1, A1 'Easy-open gusset bag A2, A3, A4 Easy-open gusset bag A1''Tray container G Gusset part Ga Mountain fold line P region Q Opening piece R Opening mouth S Side part e End point w Curved point α Width of knob β Length between upper edge of wall sheet and upper edge of upper thermal bond

Claims (6)

基材層と熱接着性樹脂層が積層された一対の壁面シートと一対の側面シートとからなり、一対の前記壁面シートの前記熱接着性樹脂層面同士を対向させて配置し、一対の前記側面シートの前記熱接着性樹脂層を外面にして中央で内側に山折りし、前記壁面シート間の両側の側部に、それぞれ挿入し、前記壁面シートと前記側面シートの対向する前記熱接着性樹脂層面同士の側端縁で熱接着して側端縁熱接着部を四隅に形成し、ガセット部を設け、上部に前記側端縁熱接着部に直交する上部熱接着部を備えた四隅シールガセット袋であって、前記上部熱接着部を前記壁面シートの上端縁より所定長さ下方に寄せて設け、前記上部熱接着部の上側端縁と前記壁面シートの上端縁と前記側部に設けた前記ガセット部の内側に山折りされて形成された山折り線とで区画された領域に一方の前記壁面シートの上端縁から前記上部熱接着部の上側端縁に達する開封用切目線を前記基材層に一定の間隔で一対設けて該開封用切目線と前記上部熱接着部の上側端縁と前記壁面シートの上端縁で囲まれた部分に摘み部を設けて、前記開封用切目線が下方斜めに伸び前記側端縁熱接着部に跨ってそれぞれ延設され、前記摘み部より前記開封用切目線に沿って、前記壁面シートを引裂くと共に、前記上部熱接着部で前記壁面シート間で剥離させ、さらに前記開封用切目線に沿って前記壁面シートより開封することを特徴とする易開封性ガセット袋。 A pair of wall sheets and a pair of side sheets in which a base material layer and a thermoadhesive resin layer are laminated, and the thermoadhesive resin layer surfaces of the pair of wall sheets are arranged to face each other, and the pair of side surfaces The thermal adhesive resin layer of the sheet is folded inward at the center with the thermal adhesive resin layer as the outer surface, and inserted into the side portions on both sides between the wall sheet, respectively, and the thermal adhesive resin facing the wall sheet and the side sheet A four-corner seal gusset that is thermally bonded at the side edges of the layer surfaces to form side edge heat-bonded portions at the four corners, provided with gusset portions, and an upper heat-bonded portion that is orthogonal to the side edge heat-bonded portions at the top. It is a bag, and the upper thermal bonding part is provided at a predetermined length below the upper edge of the wall sheet, and is provided on the upper edge of the upper thermal bonding part, the upper edge of the wall sheet, and the side part. It was formed by mountain folding inside the gusset part A pair of opening cut lines extending from the upper edge of one of the wall sheets to the upper edge of the upper thermal bonding portion is provided on the base material layer at regular intervals in a region partitioned by a fold line. A knob is provided in a portion surrounded by a line of sight and an upper edge of the upper thermal bonding portion and an upper edge of the wall sheet, and the opening cut line extends obliquely downward and straddles the side edge thermal bonding portion. Each extending, tearing the wall sheet along the opening cut line from the knob, and peeling between the wall sheet at the upper thermal bonding portion, and further along the opening cut line An easy-open gusset bag, which is opened from a wall sheet. 前記開封用切目線が下方斜めに伸び前記側端縁熱接着部近傍で下方に湾曲し前記側端縁熱接着部に沿ってそれぞれ延設され、前記摘み部より前記開封用切目線に沿って、前記壁面シートを引裂くと共に、前記上部熱接着部で前記壁面シート間で剥離させ、さらに前記開封用切目線に沿って前記壁面シートより開封することを特徴とする請求項1記載の易開封性ガセット袋。 The opening cut line extends obliquely downward and in the vicinity of the side edge thermal bonding portion, extends downward along the side edge thermal bonding portion, and extends from the knob along the opening cut line. The easy-opening according to claim 1, wherein the wall sheet is torn, peeled between the wall sheets at the upper thermal bonding portion, and further opened from the wall sheet along the opening cut line. Sex gusset bag. 前記摘み部の前記側端縁熱接着部側近傍に前記壁面シート間又は前記壁面シートと前記側面シート間に対向する前記熱接着性樹脂層面同士を熱接着してポイントシール部を設けたことを特徴とする請求項1又は2記載の易開封性ガセット袋。 In the vicinity of the side edge thermal bonding portion side of the knob portion, a point seal portion is provided by thermally bonding the thermal adhesive resin layer surfaces facing each other between the wall sheet or between the wall sheet and the side sheet. The easily openable gusset bag according to claim 1 or 2, characterized in that 前記壁面シートの上端縁における前記開封用切目線の端部に開封開始手段が設けられたことを特徴とする請求項1〜3のいずれかに記載の易開封性ガセット袋。 The easily openable gusset bag according to any one of claims 1 to 3, wherein an opening start means is provided at an end of the opening cut line at an upper edge of the wall sheet. 前記開封用切目線において前記摘み部に設けられた一方の前記壁面シートの上端縁から前記上部熱接着部の上側端縁間の部分が前記壁面シートを貫通する切れ目線からなることを特徴とする請求項1又は2記載の易開封性ガセット袋。 In the opening cut line, a portion between the upper end edge of one of the wall surface sheets provided on the knob portion and the upper edge of the upper thermal bonding portion is formed by a cut line that penetrates the wall surface sheet. The easily openable gusset bag according to claim 1 or 2. 前記開封用切目線が前記壁面シートの前記基材層のみを貫通する間欠した切目からなることを特徴とする請求項1〜5のいずれかに記載の易開封性ガセット袋。 The easy-open gusset bag according to any one of claims 1 to 5, wherein the opening cut line is an intermittent cut that penetrates only the base material layer of the wall sheet.
JP2007080710A 2007-03-27 2007-03-27 Easy-to-open gusset bag Expired - Fee Related JP4962081B2 (en)

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JP5530681B2 (en) * 2009-08-31 2014-06-25 朋和産業株式会社 Pillow packaging body and packaging material for pillow packaging
JP6007608B2 (en) * 2012-06-19 2016-10-12 凸版印刷株式会社 Packaging bag and manufacturing method thereof
AR095210A1 (en) * 2013-03-11 2015-09-30 Intercontinental Great Brands Llc OPENING DEVICE OF PACKAGING AND MANUFACTURING METHODS OF THE SAME
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