JP2022032312A - Packaging bag with fastener and manufacturing method of the same - Google Patents

Packaging bag with fastener and manufacturing method of the same Download PDF

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JP2022032312A
JP2022032312A JP2020135958A JP2020135958A JP2022032312A JP 2022032312 A JP2022032312 A JP 2022032312A JP 2020135958 A JP2020135958 A JP 2020135958A JP 2020135958 A JP2020135958 A JP 2020135958A JP 2022032312 A JP2022032312 A JP 2022032312A
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packaging
chuck
zipper
bag
recess
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知毅 神谷
Tomotake Kamiya
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Howa Sangyo KK
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Howa Sangyo KK
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Abstract

To provide a packaging bag with a fastener which can open a fastener wide, which can suppress clogging of a storage object to an end part inside the fastener, thereby improving usability, and to provide a manufacturing method of the same.SOLUTION: A packaging bag with a fastener includes: a bag body 2 in which two pieces of packaging materials 10 are joined in a bag-like shape via a three-way seal part 12, and which has an opening part 16 between lateral seal parts 13 being separated; and a fastener 3 for openably/closably sealing the opening part 16. At inside end parts close to an end part of the fastener 3 at the lateral seal parts 13, recessed parts 41 are formed dented from one packaging material 10 side to the other packaging material 10 side.SELECTED DRAWING: Figure 4

Description

本発明は、チャック付き包装袋及びその製造方法に関する。 The present invention relates to a packaging bag with a zipper and a method for manufacturing the same.

従来、例えば、液状、粒状、粉状あるいは固形状等の食品や薬品等の収容物を密封して収容する包装袋として、開口部に、内部を開閉可能に封止するチャックを設け、収容物の一部を取り出すことができるとともに、残存する収容物を常に密封して保存できるチャック付きの袋が知られている。例えば、特許文献1には、三方シールされて袋を形成する2枚のフィルムの開口部の内面に、互いに嵌合する一対の凹型及び凸型のチャック部を両側のシール間にわたって設けた袋が開示されている。 Conventionally, for example, as a packaging bag for hermetically sealing and accommodating liquid, granular, powdery or solid foods and chemicals, a zipper is provided at the opening to seal the inside so that the contents can be opened and closed. There is known a bag with a zipper that can take out a part of the powder and keep the remaining contents in a sealed state at all times. For example, Patent Document 1 describes a bag in which a pair of concave and convex chuck portions that are fitted to each other are provided between the seals on both sides on the inner surface of the openings of two films that are three-way sealed to form a bag. It has been disclosed.

特開2020-045106号公報Japanese Unexamined Patent Publication No. 2020-045106

上記特許文献1に開示されるような袋においては、両側のシールの部分との境界に近接するチャックの端部が、チャック自身の剛性によって先鋭な鋭角状にしか広がらず、そのため、開口面積が大きくなり難かったり、収容物が粉の場合にはチャックの内側の端部に粉が詰まり易かったりするといった不都合な面があった。 In a bag as disclosed in Patent Document 1, the end portion of the chuck close to the boundary with the seal portions on both sides spreads only in a sharp acute angle due to the rigidity of the chuck itself, and therefore the opening area becomes large. There were inconveniences such as the fact that it was difficult to grow and that when the contained material was powder, the powder was easily clogged at the inner end of the chuck.

そこで本発明は、チャックを広く開口することができるとともに、チャックの内側の端部への収容物の詰まりを抑制することができることにより、使い勝手が向上するチャック付き包装袋及びその製造方法を提供することを目的とする。 Therefore, the present invention provides a packaging bag with a zipper and a method for manufacturing the same, which can improve usability by being able to open the zipper widely and suppressing clogging of the contents in the inner end of the zipper. The purpose is.

(1)本発明のチャック付き包装袋は、2枚の包材がシール部を介して袋状に接合され、離間する前記シール部の間に開口部を有する袋本体と、前記開口部を開閉可能に封止するチャックと、を備えるチャック付き包装袋において、前記シール部における前記チャックの端部に近接する内側端部に、一方の前記包材側から他方の前記包材側に食い込んだ凹部が形成される。 (1) In the packaging bag with a zipper of the present invention, two packaging materials are joined in a bag shape via a sealing portion, and a bag main body having an opening between the sealing portions separated from each other and the opening are opened and closed. In a packaging bag with a zipper comprising a chuck that can be sealed, a recess in the sealing portion that bites into the inner end portion of the sealing portion close to the end portion of the chuck, from one packaging material side to the other packaging material side. Is formed.

(2)(1)において、前記チャックを開いた状態で、前記チャックの端部に、前記凹部によって前記チャックの開く方向に沿って延在する内壁部が形成される。 (2) In (1), with the chuck open, an inner wall portion extending along the opening direction of the chuck is formed at the end of the chuck by the recess.

(3)(1)または(2)において、前記凹部は、前記チャックを横断する方向に延在する直線状に形成される。 (3) In (1) or (2), the recess is formed in a straight line extending in a direction extending across the chuck.

(4)(1)~(3)のいずれかにおいて、前記シール部における前記内側端部に、他方の前記包材側から一方の前記包材側に食い込んだ凹部が更に形成される。 (4) In any one of (1) to (3), a recess is further formed in the inner end portion of the sealing portion from the other packaging material side to the one packaging material side.

(5)(4)において、前記凹部は、前記チャックを横断する方向に延在する直線状に形成される。 (5) In (4), the recess is formed in a straight line extending in a direction extending across the chuck.

(6)本発明のチャック付き包装袋の製造方法は、2枚の包材がシール部を介して袋状に接合され、離間する前記シール部の間に開口部を有する袋本体と、前記開口部を開閉可能に封止するチャックと、を備えるチャック付き包装袋を製造するにあたり、形成される前記シール部における前記チャックの端部に近接する内側端部に対して、一方の前記包材の外面から他方の前記包材の方向に凸型を押し付けることにより、前記シール部に、一方の前記包材側から他方の前記包材側に食い込んだ凹部を形成する。 (6) In the method for manufacturing a packaging bag with a zipper of the present invention, two packaging materials are joined in a bag shape via a sealing portion, and a bag main body having an opening between the sealing portions separated from each other and the opening. In manufacturing a packaging bag with a zipper, which comprises a zipper that seals the portion openably and closably, one of the packaging materials is used with respect to the inner end portion of the sealed portion to be formed, which is close to the end portion of the chuck. By pressing the convex shape from the outer surface toward the other packaging material, a concave portion is formed in the sealing portion from one side of the packaging material to the other side of the packaging material.

(7)(6)において、前記シール部は、圧着部材により前記2枚の包材を圧着して形成され、前記凸型は、前記圧着部材に設けられ、前記シール部を形成すると同時に、前記凸型により前記凹部を形成する。 (7) In (6), the sealing portion is formed by crimping the two packaging materials with a crimping member, and the convex shape is provided on the crimping member to form the sealing portion and at the same time, the said. The concave shape is formed by the convex shape.

(8)(7)において、重ねた2枚の包材の原反を搬送する途中において、搬送方向に連続して前記原反に設けられる2つの包装袋の境界にまたがって2つ分の前記シール部を前記圧着部材により一括して形成すると同時に、当該2つ分の前記シール部のそれぞれに前記圧着部材に設けられた前記凸型により前記凹部を形成し、次いで、前記境界を切断する。 (8) In (7), in the middle of transporting the raw fabrics of the two stacked packaging materials, the two packaging bags are straddled over the boundary between the two packaging bags provided on the raw fabrics continuously in the transport direction. At the same time that the seal portion is collectively formed by the crimping member, the concave portion is formed in each of the two sealing portions by the convex shape provided in the crimping member, and then the boundary is cut.

本発明によれば、チャックを広く開口することができるとともに、チャックの内側の端部への収容物の詰まりを抑制することができることにより、使い勝手が向上するチャック付き包装袋及びその製造方法を提供することができる。 According to the present invention, there is provided a packaging bag with a zipper and a method for manufacturing the same, which can improve usability by being able to open the zipper widely and suppressing clogging of the contents in the inner end of the zipper. can do.

本発明の一実施形態に係る包装袋(チャック付き包装袋)を示す平面図である。It is a top view which shows the packaging bag (packaging bag with a zipper) which concerns on one Embodiment of this invention. 図1のII-II断面図である。FIG. 2 is a sectional view taken along line II-II of FIG. 図1のIII-III断面図である。FIG. 3 is a sectional view taken along line III-III of FIG. 開封したチャックの端部を示す図であって、図1のIII-III断面に対応する部分である。It is a figure which shows the end part of the opened chuck, and is the part corresponding to the cross section III-III of FIG. 従来の包装袋の一例を参考例として示す図であって、開封したチャックの端部を示す図である。It is a figure which shows an example of the conventional packaging bag as a reference example, and is the figure which shows the end part of the opened chuck. 本発明の一実施形態に係る製造方法において、製造ラインを搬送される原反の一部を示す平面図である。It is a top view which shows a part of the original fabric which is carried on the production line in the production method which concerns on one Embodiment of this invention. 一実施形態に係る製造方法により得られる包装袋を示す平面図である。It is a top view which shows the packaging bag obtained by the manufacturing method which concerns on one Embodiment. 一実施形態に係る製造方法で用いる圧着部材を示す側面図である。It is a side view which shows the crimping member used in the manufacturing method which concerns on one Embodiment. 上記圧着部材により側方シール部及び凹部を形成する工程を示す側面図である。It is a side view which shows the process of forming a side seal portion and a recess by the crimping member. 上記圧着部材により形成された側方シール部を切断して包装袋を得る工程を示す側面図である。It is a side view which shows the process of obtaining the packaging bag by cutting the side seal portion formed by the crimping member. 本発明の他の実施形態に係る包装袋の、凹部が形成された側方シール部及びチャックの部分を示す断面図である。It is sectional drawing which shows the side seal part and the chuck part which formed the concave part of the packaging bag which concerns on other embodiment of this invention. 他の実施形態に係る製造方法で用いる圧着部材を示す側面図である。It is a side view which shows the crimping member used in the manufacturing method which concerns on other embodiment. 図12に示す圧着部材により側方シール部及び凹部を形成する工程を示す側面図である。It is a side view which shows the process of forming a side seal portion and a recess by the crimping member shown in FIG. 図12に示す圧着部材により形成された側方シール部を切断して包装袋を得る工程を示す側面図である。It is a side view which shows the process of obtaining the packaging bag by cutting the side seal portion formed by the crimping member shown in FIG. 12.

以下、本発明に係る実施形態について図面を参照しつつ説明する。
図1は、一実施形態に係るチャック付き包装袋(以下、単に包装袋と略称)1の平面図である。図2は、図1のII-II断面図である。図3は、図1のIII-III断面図である。本実施形態の包装袋1は、袋本体2と、チャック3と、を備える。
Hereinafter, embodiments according to the present invention will be described with reference to the drawings.
FIG. 1 is a plan view of a packaging bag with a zipper (hereinafter, simply abbreviated as a packaging bag) 1 according to an embodiment. FIG. 2 is a sectional view taken along line II-II of FIG. FIG. 3 is a sectional view taken along line III-III of FIG. The packaging bag 1 of the present embodiment includes a bag body 2 and a chuck 3.

袋本体2は、図2に示すように、2枚の包材10によって袋状に形成される。本実施形態の包材10は、シート状の樹脂を矩形状に形成したものである。本実施形態の包装袋1は、平面視が縦長の長方形状であって、図1の上側の端部が開口側の端部となっている。 As shown in FIG. 2, the bag body 2 is formed in a bag shape by two packaging materials 10. The packaging material 10 of the present embodiment is formed by forming a sheet-shaped resin into a rectangular shape. The packaging bag 1 of the present embodiment has a vertically long rectangular shape in a plan view, and the upper end portion in FIG. 1 is the end portion on the opening side.

包材10は、例えば、単層あるいは多層の可撓性フィルム等からなる。単層フィルムの場合には、例えば、OPP(二軸延伸ポリプロピレン)、CPP(未延伸ポリプロピレン)、LDPE(低密度ポリエチレン)、LLDPE(直鎖状低密度ポリエチレン)、EVA(エチレン酢酸ビニル共重合体)、塩化ビニール等の樹脂で構成されるフィルムが用いられる。多層フィルムとしては、基材層や中間層として、例えば、OPP(二軸延伸ポリプロピレン)、PET(ポリエチレンテレフタレート)、ONY(二軸延伸ナイロン)、紙等が用いられ、シーラント層には、例えば、CPP(未延伸ポリポロピレン)、LDPE(低密度ポリエチレン)、LLDPE(直鎖状低密度ポリエチレン)、EVA(エチレン酢酸ビニル共重合体)等の樹脂が用いられる。さらに多層フィルムの場合には、ガスバリアーや遮光などの目的でアルミニウム蒸着やアルミニウム箔の積層など、無機系の層を備えた構成が採用可能である。
このような包材10の厚さは、単層フィルムであれば、例えば15~100μm程度であり、多層フィルムであれば、例えば30~250μm程度である。
The packaging material 10 is made of, for example, a single-layer or multi-layer flexible film or the like. In the case of a single-layer film, for example, OPP (biaxially stretched polypropylene), CPP (unstretched polypropylene), LDPE (low density polyethylene), LLDPE (linear low density polyethylene), EVA (ethylene vinyl acetate copolymer). ), A film composed of a resin such as vinyl chloride is used. As the multilayer film, for example, OPP (biaxially stretched polypropylene), PET (polyethylene terephthalate), ONY (biaxially stretched nylon), paper and the like are used as the base material layer and the intermediate layer, and the sealant layer is, for example, for example. Resins such as CPP (unstretched polypropylene), LDPE (low density polyethylene), LLDPE (linear low density polyethylene), EVA (ethylene vinyl acetate copolymer) and the like are used. Further, in the case of a multilayer film, a configuration having an inorganic layer such as aluminum vapor deposition or aluminum foil lamination for the purpose of gas barrier or light shielding can be adopted.
The thickness of such a packaging material 10 is, for example, about 15 to 100 μm for a single-layer film and, for example, about 30 to 250 μm for a multilayer film.

なお、本発明に係る包装袋1の外形形状は長方形状に制限されず、正方形状、多角形状、あるいは外形線に曲線が含まれる形状、その他の異形形状等、様々な形状を含む。また、本実施形態の包装袋1は、図2に示すように平袋であるが、本発明の包装袋としてはこの形態に限定されず、例えば、ガゼット袋、スタンディングパウチ等の、立体形状の袋であってもよい。 The outer shape of the packaging bag 1 according to the present invention is not limited to a rectangular shape, and includes various shapes such as a square shape, a polygonal shape, a shape including a curved line in the outer shape, and other irregular shapes. Further, the packaging bag 1 of the present embodiment is a flat bag as shown in FIG. 2, but the packaging bag of the present invention is not limited to this embodiment, and is, for example, a three-dimensional shape such as a gusset bag or a standing pouch. It may be a bag.

袋本体2は、図1において図面表裏方向である厚さ方向に重ねられた2枚の包材10の、両側及び底部側の3辺の周縁部が互いに接合された三方シール部12と、表裏の包材10が接合されない残りの辺の内側に設けられる開口部16と、を有する。三方シール部12は、本発明のシール部を構成する。三方シール部12は、図1において上下方向に延びる互いに平行な一対の側方シール部13と、左右方向に延びる底部シール部14と、を含む。三方シール部12は、表裏の包材10を、例えば、熱溶着(ヒートシール)や超音波溶着等の手段で接合して形成される。なお、三方をシールした包装袋としては、本実施形態のように底部シール部14を形成せず、その代わりにチャック3側の開口をシールして三方シール部を形成し、底部側を開放させた態様の包装袋もあり、本発明はそのような包装袋も含むものとする。 The bag body 2 has a three-way sealing portion 12 in which peripheral edges on both sides and three sides of two packaging materials 10 stacked in the thickness direction, which is the front and back directions of the drawing in FIG. 1, are joined to each other, and front and back. It has an opening 16 provided inside the remaining side to which the packaging material 10 of the above is not joined. The three-way seal portion 12 constitutes the seal portion of the present invention. The three-way seal portion 12 includes a pair of side seal portions 13 parallel to each other extending in the vertical direction in FIG. 1, and a bottom seal portion 14 extending in the left-right direction. The three-way seal portion 12 is formed by joining the front and back packaging materials 10 by means such as heat welding (heat sealing) or ultrasonic welding. As a packaging bag with three sides sealed, the bottom seal portion 14 is not formed as in the present embodiment, but instead the opening on the chuck 3 side is sealed to form a three-way seal portion, and the bottom side is opened. There is also a packaging bag of the above aspect, and the present invention includes such a packaging bag.

チャック3は、開口部16を開閉可能に封止する。チャック3は、離間する左右の側方シール部13の間にわたっている。チャック3は、袋本体2を横断するように底部シール部14と平行に配置される。 The chuck 3 seals the opening 16 so as to be openable and closable. The chuck 3 extends between the left and right side seal portions 13 which are separated from each other. The chuck 3 is arranged in parallel with the bottom seal portion 14 so as to cross the bag main body 2.

2枚の包材10の間には、三方シール部12とチャック3とにより囲まれて封止される収容部18が形成される。収容部18には、例えば、所定量の、液状、粒状、粉状あるいは固形状等の食品や薬品等の収容物が、開口部16から投入されて収容される。チャック3を開くと、収容部18内の収容物を取り出すことができ、チャック3を閉じると、収容部18が密封される。 An accommodating portion 18 surrounded by and sealed by the three-way sealing portion 12 and the chuck 3 is formed between the two packaging materials 10. For example, a predetermined amount of liquid, granular, powdery or solid foods, chemicals and the like are charged into the accommodating portion 18 and accommodated through the opening 16. When the chuck 3 is opened, the contents in the accommodating portion 18 can be taken out, and when the chuck 3 is closed, the accommodating portion 18 is sealed.

なお、チャック3の開放側(図1で上側)の端縁にも表裏の包材10を接合してシール部を設け、その開放側シール部に、ミシン目等による切断線を設け、初めて収容物を取り出す時にはその切断線を切断した後、チャック3を開けて収容物を取り出すことができるように構成してもよい。 It should be noted that the front and back packaging materials 10 are also joined to the end edge of the chuck 3 on the open side (upper side in FIG. 1) to provide a sealing portion, and a cutting line such as a perforation is provided on the open side sealing portion to accommodate the chuck 3 for the first time. When taking out an object, after cutting the cutting line, the chuck 3 may be opened so that the contained object can be taken out.

図2に示すように、チャック3は、互いに係脱可能に嵌合する一対の雄型チャック32及び雌型チャック34を有する。雄型チャック32は、一方の包材10の内面に設けられ、雌型チャック34は雄型チャック32に対向する他方の包材10の内面に設けられる。雄型チャック32及び雌型チャック34は、いずれも包材10の可撓性に応じて一体に変形可能な可撓性を有する。 As shown in FIG. 2, the chuck 3 has a pair of male chucks 32 and female chucks 34 that are detachably fitted to each other. The male chuck 32 is provided on the inner surface of one packaging material 10, and the female chuck 34 is provided on the inner surface of the other packaging material 10 facing the male chuck 32. Both the male chuck 32 and the female chuck 34 have flexibility that can be integrally deformed according to the flexibility of the packaging material 10.

雄型チャック32は、一方の包材10の内面に熱溶着等によって接合される細い帯状のベース部32aと、ベース部32aに沿って一体に形成された凸条部32bと、を有する。凸条部32bは、雌型チャック34の側(袋本体2の内側)に向けて突出している。凸条部32bは、断面形状が例えば矢印の先端形状、あるいはやじり形状等の形状を有する。 The male chuck 32 has a thin strip-shaped base portion 32a joined to the inner surface of one of the packaging materials 10 by heat welding or the like, and a ridge portion 32b integrally formed along the base portion 32a. The ridge portion 32b projects toward the side of the female chuck 34 (inside the bag body 2). The ridge portion 32b has a cross-sectional shape such as an arrow tip shape or a twisted shape.

雌型チャック34は、他方の包材10の内面に熱溶着等によって接合される細い帯状のベース部34aと、ベース部34aに沿って一体に形成された弾性変形可能な溝型部34bと、を有する。溝型部34bは、雄型チャック32の側(袋本体2の内側)に向けて突出している。溝型部34bは、雄型チャック32に対向する部分に、雄型チャック32の凸条部32bが係脱可能に嵌合する溝34cを有する。 The female chuck 34 has a thin strip-shaped base portion 34a joined to the inner surface of the other packaging material 10 by heat welding or the like, and an elastically deformable groove type portion 34b integrally formed along the base portion 34a. Has. The groove type portion 34b projects toward the side of the male type chuck 32 (inside of the bag body 2). The groove type portion 34b has a groove 34c in which the convex portion 32b of the male type chuck 32 is detachably fitted in a portion facing the male type chuck 32.

雄型チャック32及び雌型チャック34は、例えば、ポリエチレンやポリプロピレン等の樹脂により形成される。雄型チャック32及び雌型チャック34は立体形状であって、ある程度の厚さ(袋本体2の厚さ方向に沿った寸法)を有するため、包材10よりも剛性が高い。 The male chuck 32 and the female chuck 34 are formed of, for example, a resin such as polyethylene or polypropylene. Since the male chuck 32 and the female chuck 34 have a three-dimensional shape and have a certain thickness (dimensions along the thickness direction of the bag body 2), they have higher rigidity than the packaging material 10.

チャック3によれば、チャック3の一端側を手指で挟んで雄型チャック32の凸条部32bを雌型チャック34の溝型部34bの溝34cに弾性的に嵌合させ、チャック3を押さえ付けながら他端側に手指をスライドさせることにより、全長にわたり凸条部32bを溝型部34bの溝34cに嵌合させることができる。このようにチャック3が閉塞して、開口部16が閉塞する。また、表裏の包材10の開放端部を離間するように広げることにより、溝型部34bの溝34cから凸条部32bが外れ、チャック3を開封することができる。 According to the chuck 3, the convex portion 32b of the male chuck 32 is elastically fitted into the groove 34c of the groove type portion 34b of the female chuck 34 by sandwiching one end side of the chuck 3 with fingers, and the chuck 3 is pressed. By sliding the finger to the other end side while attaching, the convex portion 32b can be fitted into the groove 34c of the groove type portion 34b over the entire length. In this way, the chuck 3 is closed and the opening 16 is closed. Further, by widening the open ends of the front and back packaging materials 10 so as to be separated from each other, the ridge portion 32b can be removed from the groove 34c of the groove type portion 34b, and the chuck 3 can be opened.

図3に示すように、本実施形態の包装袋1においては、側方シール部13におけるチャック3の端部に近接する内側端部に、凹部41が形成されている。ここでいう内側端部は、側方シール部13おけるチャック3側(図3で右側)の端部をいう。凹部41は、図1に示すように、左右の側方シール部13のいずれにも形成されている。 As shown in FIG. 3, in the packaging bag 1 of the present embodiment, the recess 41 is formed in the inner end portion of the side seal portion 13 close to the end portion of the chuck 3. The inner end portion referred to here refers to the end portion on the chuck 3 side (right side in FIG. 3) in the side seal portion 13. As shown in FIG. 1, the recess 41 is formed in each of the left and right side seal portions 13.

図3に示すように、凹部41は、一方の包材10側から他方の包材10側に食い込むことにより、一方の包材10側の側方シール部13に形成されている。凹部41は、チャック3を横断する方向(図1で上下方向)に直線状に延在する溝状に形成される。凹部41の裏側には、形成される凹部41に応じた凸部41bが形成される。本実施形態では、凹部41は、雄型チャック32が設けられた包材10の側に形成されているが、これとは逆に、雌型チャック34が設けられた包材10の側に形成されてもよい。 As shown in FIG. 3, the recess 41 is formed in the side seal portion 13 on one packaging material 10 side by biting into the other packaging material 10 side from one packaging material 10 side. The recess 41 is formed in a groove shape extending linearly in a direction crossing the chuck 3 (vertical direction in FIG. 1). On the back side of the concave portion 41, a convex portion 41b corresponding to the formed concave portion 41 is formed. In the present embodiment, the recess 41 is formed on the side of the packaging material 10 provided with the male chuck 32, but on the contrary, the recess 41 is formed on the side of the packaging material 10 provided with the female chuck 34. May be done.

凹部41は、表裏の包材10の周縁部を接合して側方シール部13を形成する際に、側方シール部13と同時に形成することができる。例えば、側方シール部13を、加熱した圧着部材で表裏の包材10を挟み込んで圧着する熱溶着で形成する場合、使用する圧着部材の所定箇所に、凹部41を形成し得る凸型を予め設けておき、その圧着部材による圧着と同時に、凸型により凹部41を形成することができる。 The recess 41 can be formed at the same time as the side seal portion 13 when the peripheral edges of the front and back packaging materials 10 are joined to form the side seal portion 13. For example, when the side seal portion 13 is formed by heat welding in which the front and back packaging materials 10 are sandwiched between heated crimping members and crimped, a convex shape capable of forming a concave portion 41 is previously formed at a predetermined position of the crimping member to be used. At the same time as crimping by the crimping member, the concave portion 41 can be formed by the convex shape.

凹部41が形成されることにより、チャック3を端部まで開封した場合、図4に示すように、凹部41が形成された側の雄型チャック32の端部に、厚さ方向にほぼ沿って延在する短い内壁部41aが現出する。これにより、チャック3の内側の開口部16の端部は、例えば図4に示すように仮想の楕円Gの長径方向端部の外形に概ね沿った半円弧状に開く。すなわちチャック3は、凹部41の形成により、チャック3の端部における雄型チャック32と雌型チャック34との間隔が空くように「癖付け」される。チャック3の内側の開口部16の端部が円弧状に空くことにより、開口部16は全体が楕円状となって開口面積を従来よりも大きくすることができる。また、チャック3を開封する力が掛かった時に、凹部41が起点となってチャック3を開き易い。さらに、チャック3の内側の端部に、例えば粉状の収容物が詰まり難くなる。 When the chuck 3 is opened to the end due to the formation of the recess 41, as shown in FIG. 4, the male chuck 32 on the side where the recess 41 is formed is substantially along the end in the thickness direction. The extending short inner wall portion 41a appears. As a result, the end portion of the opening 16 inside the chuck 3 is opened in a semicircular shape substantially along the outer shape of the longitudinal end portion of the virtual ellipse G, for example, as shown in FIG. That is, the chuck 3 is "habitualized" by forming the recess 41 so that the male chuck 32 and the female chuck 34 are spaced apart from each other at the end of the chuck 3. By opening the end of the opening 16 inside the chuck 3 in an arc shape, the opening 16 has an elliptical shape as a whole, and the opening area can be made larger than before. Further, when a force for opening the chuck 3 is applied, the recess 41 serves as a starting point and the chuck 3 can be easily opened. Further, the inner end of the chuck 3 is less likely to be clogged with, for example, a powdery substance.

ここで、図5に、従来の包装袋のチャック100を示す。チャック100は、本実施形態のように雄型チャック102と雌型チャック104との組み合わせである。この従来の包装袋では、チャック100の端部はチャック100自身の剛性によって先鋭な鋭角状にしか広がらない。例えば開口部116の端部は、図5に示すように仮想の二等辺三角形Hの頂角に概ね沿った三角形状に開く。このため、開口部116を大きく開け難かったり、チャック100の内側の端部に粉状の収容物が詰まり易かったりしていた。しかし本実施形態では、凹部41を有することにより、従来の包装袋で生じていた上記の不具合を解消することができる。 Here, FIG. 5 shows a conventional packaging bag chuck 100. The chuck 100 is a combination of the male chuck 102 and the female chuck 104 as in the present embodiment. In this conventional packaging bag, the end portion of the chuck 100 expands only in a sharp acute angle due to the rigidity of the chuck 100 itself. For example, the end of the opening 116 opens in a triangular shape substantially along the apex angle of the virtual isosceles triangle H as shown in FIG. For this reason, it is difficult to open the opening 116 widely, and the inner end of the chuck 100 is easily clogged with powdery contents. However, in the present embodiment, by having the recess 41, the above-mentioned problem that has occurred in the conventional packaging bag can be solved.

次に、上記包装袋1の製造するにあたり、特に、凹部41の形成方法を主とする本発明に係る製造方法の一実施形態について、図6~図10を参照しつつ説明する。 Next, in manufacturing the packaging bag 1, one embodiment of the manufacturing method according to the present invention, which mainly comprises the method of forming the recess 41, will be described with reference to FIGS. 6 to 10.

図6は、製造ラインにおいて、重ねた原反11をF方向に搬送しながら、三方シール部12を連続的に形成している状態を示している。図6に示す原反11は、図8に示すように、互いに重ねられる上側の原反11a及び下側の原反11bの2枚を示している。原反11a及び原反11bは、包材10の材料であって、製造ラインの下流側の工程で切断されて、包装袋1の包材10となる。原反11には、製造ラインの上流側(図6で左側)において、予め、チャック3すなわち雄型チャック32及び雌型チャック34がそれぞれ原反11に対して熱溶着により連続的に設けられる。 FIG. 6 shows a state in which the three-way seal portion 12 is continuously formed while the stacked raw fabrics 11 are conveyed in the F direction on the production line. As shown in FIG. 8, the original fabric 11 shown in FIG. 6 shows two sheets, the upper original fabric 11a and the lower original fabric 11b, which are overlapped with each other. The raw fabric 11a and the raw fabric 11b are the materials of the packaging material 10, and are cut in the process on the downstream side of the production line to become the packaging material 10 of the packaging bag 1. A chuck 3, that is, a male chuck 32 and a female chuck 34 are continuously provided in advance on the raw fabric 11 on the upstream side of the production line (on the left side in FIG. 6) by heat welding to the original fabric 11, respectively.

三方シール部12は、はじめに、搬送方向に沿った底部シール部14が形成され、次いで搬送方向に直交する側方シール部13が形成される。搬送方向に並ぶ切断前の隣り合う2つの包装袋1の境界にまたがって、側方シール部13の2つ分が一括して形成される。2つ分の側方シール部13Aは、搬送方向に並ぶ包装袋1の境界となる幅方向の中央に、原反11を切断する切断線Sが設定される。三方シール部12が形成された後、製造ラインの下流側(図6の右側)において切断線SがカッターT(図10参照)により順次切断され、図7に示す包装袋1が順次得られる。 In the three-way seal portion 12, the bottom seal portion 14 is first formed along the transport direction, and then the side seal portion 13 orthogonal to the transport direction is formed. Two side seal portions 13 are collectively formed across the boundary between two adjacent packaging bags 1 before cutting, which are lined up in the transport direction. In the two side seal portions 13A, a cutting line S for cutting the original fabric 11 is set at the center in the width direction, which is the boundary of the packaging bags 1 arranged in the transport direction. After the three-way seal portion 12 is formed, the cutting line S is sequentially cut by the cutter T (see FIG. 10) on the downstream side (right side of FIG. 6) of the production line, and the packaging bag 1 shown in FIG. 7 is sequentially obtained.

本実施形態では、底部シール部14及び2つ分の側方シール部13Aは、いずれも加熱した圧着部材で原反11を挟んで圧着する熱溶着により形成する。そして上記凹部41を、2つ分の側方シール部13Aを形成する際に同時に形成する。 In the present embodiment, the bottom seal portion 14 and the two side seal portions 13A are both formed by heat welding in which the raw fabric 11 is sandwiched between heated crimping members and crimped. Then, the recess 41 is formed at the same time when forming the two side seal portions 13A.

図8及び図9は、原反11が搬送される途中において、圧着部材50により、2つ分の側方シール部13Aを一括して形成する過程を示している。圧着部材50は、加熱される上型51及び下型52を備える熱溶着用のシールバーである。上型51及び下型52は、搬送途中の原反11の上側及び下側に、互いに離接可能にそれぞれ配置される。図9に示すように、上型51と下型52とにより原反11を挟んで圧着することにより、上側の原反11aと下側の原反11bが熱溶着され、2つ分の側方シール部13Aが形成される。 8 and 9 show a process of collectively forming two side seal portions 13A by the crimping member 50 while the original fabric 11 is being conveyed. The crimping member 50 is a heat-welded seal bar including an upper mold 51 and a lower mold 52 to be heated. The upper die 51 and the lower die 52 are arranged on the upper side and the lower side of the original fabric 11 during transportation so as to be detachable from each other. As shown in FIG. 9, by sandwiching and crimping the raw fabric 11 between the upper mold 51 and the lower mold 52, the upper raw fabric 11a and the lower original fabric 11b are heat-welded and sideways for two. The seal portion 13A is formed.

上型51の圧着面には、下型52に向かって突出する一対の凸型51aが、幅方向両端部に一体的に形成されている。下型52の圧着面の各凸型51aに対応する部分には、各凸型51aが嵌合可能な一対の凹型52aが形成されている。各一対の凸型51a及び凹型52aのそれぞれは、側方シール部13に上記凹部41を形成し得る箇所に形成される。凸型51aは、チャック3を横断する方向に延在し、直線状の凹部41を形成することができる形状を有する。 On the crimping surface of the upper mold 51, a pair of convex molds 51a projecting toward the lower mold 52 are integrally formed at both ends in the width direction. A pair of concave molds 52a into which each convex mold 51a can be fitted is formed in a portion of the crimping surface of the lower mold 52 corresponding to each convex mold 51a. Each of the pair of convex type 51a and concave type 52a is formed at a position where the concave portion 41 can be formed in the side seal portion 13. The convex shape 51a extends in a direction crossing the chuck 3 and has a shape capable of forming a linear concave portion 41.

図9に示すように、加熱された上型51と下型52とにより原反11を挟んで圧着すると、各凸型51aが各凹型52aにそれぞれ嵌合する。これにより、上側の包材10の原反11aの外面から下側の原反11bの方向に凸型51aが押し付けられ、2つ分の側方シール部13Aの幅方向両端に、上側の原反11a側から下側の原反11b側に食い込んだ凹部41が形成される。 As shown in FIG. 9, when the original fabric 11 is sandwiched between the heated upper mold 51 and the lower mold 52 and crimped, each convex mold 51a fits into each concave mold 52a. As a result, the convex shape 51a is pressed from the outer surface of the original fabric 11a of the upper packaging material 10 toward the lower original fabric 11b, and the upper original fabric is pressed at both ends in the width direction of the two side seal portions 13A. A recess 41 that bites into the lower raw fabric 11b side from the 11a side is formed.

図10に示すように、上記切断線SをカッターTで切断することにより、切断された両側の側方シール部13のそれぞれに、凹部41が形成された状態となる。このように2つ分の側方シール部13Aの幅方向両端に凹部41をそれぞれ形成する工程と、切断線Sを切断する工程を順次行うことにより、左右の側方シール部13に凹部41が形成された包装袋1を連続的に得る。 As shown in FIG. 10, by cutting the cutting line S with the cutter T, recesses 41 are formed in each of the cut side seal portions 13 on both sides. By sequentially performing the steps of forming the recesses 41 at both ends of the two side seal portions 13A in the width direction and the step of cutting the cutting line S in this way, the recesses 41 are formed in the left and right side seal portions 13. The formed packaging bag 1 is continuously obtained.

以下、本実施形態の効果について説明する。
本実施形態に係る包装袋1は、2枚の包材10が三方シール部12を介して袋状に接合され、三方シール部12のうちの離間する側方シール部13の間に開口部16を有する袋本体2と、開口部16を開閉可能に封止するチャック3と、を備え、側方シール部13におけるチャック3の端部に近接する内側端部に、一方の包材10側から他方の包材10側に食い込んだ凹部41が形成される。
Hereinafter, the effects of this embodiment will be described.
In the packaging bag 1 according to the present embodiment, two packaging materials 10 are joined in a bag shape via a three-way seal portion 12, and an opening 16 is provided between the separated side seal portions 13 of the three-way seal portions 12. The bag main body 2 is provided with a chuck 3 for opening and closing the opening 16 so as to be openable and closable, and the inner end portion of the side seal portion 13 close to the end portion of the chuck 3 is provided from one packaging material 10 side. A recess 41 that bites into the other packaging material 10 side is formed.

凹部41が形成されることにより、チャック3の内側の開口部16の両端部は、チャック3の開封時に間隔が空くように癖付けされ、内壁部41aが現出することによってチャック3を広く開口することができる。また、チャック3の内側の端部に、例えば粉状の収容物が詰まることを抑制することができる。これらの結果、使い勝手の向上を図ることができる。 By forming the recess 41, both ends of the opening 16 inside the chuck 3 are habituated so as to be spaced apart when the chuck 3 is opened, and the inner wall portion 41a appears to widen the opening of the chuck 3. can do. Further, it is possible to prevent the inner end of the chuck 3 from being clogged with, for example, a powdery substance. As a result, usability can be improved.

本実施形態に係る包装袋1において、側方シール部13に形成される凹部41は、チャック3を横断する方向に延在する直線状に形成される。 In the packaging bag 1 according to the present embodiment, the recess 41 formed in the side seal portion 13 is formed in a straight line extending in a direction crossing the chuck 3.

これにより、熱溶着によりチャック3が潰されて剛性が比較的高くなっている薄い側方シール部13に、凹部41を容易、かつ確実に形成することができる。例えば、凹部41を円形状や矩形状といった二次元的に広がりを有する形状とした場合には、一方の包材10側から他方の包材10側に食い込むような凹部41を形成し難い。しかし、チャック3を直線状に横断する溝状の凹部41とすることにより、開口部16の両端部が広がるような凹部41を、容易、かつ確実に形成することができる。 As a result, the recess 41 can be easily and surely formed in the thin side seal portion 13 in which the chuck 3 is crushed by heat welding and the rigidity is relatively high. For example, when the concave portion 41 has a shape having a two-dimensional spread such as a circular shape or a rectangular shape, it is difficult to form the concave portion 41 that bites from one packaging material 10 side to the other packaging material 10 side. However, by forming the groove-shaped recess 41 that crosses the chuck 3 in a straight line, the recess 41 that widens both ends of the opening 16 can be easily and surely formed.

本実施形態に係る製造方法は、2枚の包材10が側方シール部13を介して袋状に接合され、離間する側方シール部13の間に開口部16を有する袋本体2と、開口部16を開閉可能に封止するチャック3と、を備える包装袋1を製造するにあたり、形成される側方シール部13におけるチャック3の端部に近接する内側端部に対して、一方の包材10の外面から他方の包材10の方向に凸型51aを押し付けることにより、側方シール部13に、一方の包材10側から他方の包材10側に食い込んだ凹部41を形成する。 In the manufacturing method according to the present embodiment, two packaging materials 10 are joined in a bag shape via a side seal portion 13, and a bag main body 2 having an opening 16 between the side seal portions 13 separated from each other. In manufacturing a packaging bag 1 including a chuck 3 for opening and closing the opening 16 so as to be openable and closable, one of the inner ends of the formed side seal portion 13 close to the end of the chuck 3. By pressing the convex shape 51a from the outer surface of the packaging material 10 toward the other packaging material 10, a concave portion 41 that bites from one packaging material 10 side to the other packaging material 10 side is formed in the side seal portion 13. ..

凹部41が形成されることにより、チャック3の内側の開口部16の両端部は、チャック3の開封時に間隔が空くように癖付けされ、チャック3を広く開口することができるとともに、チャック3の内側の端部への収容物の詰まりを抑制することができる。その結果、使い勝手が向上した包装袋1を製造することができる。 By forming the recess 41, both ends of the opening 16 inside the chuck 3 are habituated so as to be spaced apart when the chuck 3 is opened, so that the chuck 3 can be opened widely and the chuck 3 can be opened widely. It is possible to prevent clogging of the contents at the inner end. As a result, the packaging bag 1 with improved usability can be manufactured.

本実施形態に係る製造方法において、側方シール部13は、圧着部材50により2枚の包材10の原反11を圧着して形成され、凸型51aは、圧着部材50に設けられ、側方シール部13を形成すると同時に、凸型51aにより凹部41を形成する。 In the manufacturing method according to the present embodiment, the side seal portion 13 is formed by crimping the original fabric 11 of the two packaging materials 10 with the crimping member 50, and the convex shape 51a is provided on the crimping member 50 and is provided on the side. At the same time as forming the square seal portion 13, the concave portion 41 is formed by the convex mold 51a.

これにより、効率よく凹部41を形成することができ、製造時間を短縮することができる。 As a result, the recess 41 can be efficiently formed, and the manufacturing time can be shortened.

本実施形態に係る製造方法は、重ねた2枚の包材の原反11を搬送する製造ラインの途中において、搬送方向に連続して原反11に設けられる2つの包装袋1の境界にまたがって2つ分の側方シール部13Aを圧着部材50により一括して形成すると同時に、2つ分の側方シール部13Aのそれぞれに圧着部材50に設けられた凸型51aにより凹部41を形成し、次いで、搬送方向に並ぶ2つの包装袋1の境界である切断線Sを切断する。 The manufacturing method according to the present embodiment straddles the boundary between two packaging bags 1 provided on the raw fabric 11 continuously in the transport direction in the middle of the production line for transporting the raw fabric 11 of the two stacked packaging materials. The two side seal portions 13A are collectively formed by the crimping member 50, and at the same time, the concave portions 41 are formed by the convex mold 51a provided on the crimping member 50 in each of the two side sealing portions 13A. Next, the cutting line S, which is the boundary between the two packaging bags 1 arranged in the transport direction, is cut.

これにより、連続的に包装袋1を製造するにあたり、側方シール部13と凹部41とを効率的に製造することができ、製造時間を短縮することができる。 As a result, when the packaging bag 1 is continuously manufactured, the side seal portion 13 and the recess 41 can be efficiently manufactured, and the manufacturing time can be shortened.

次いで、図11~図14を参照しつつ本発明の他の実施形態を説明する。なお、この他の実施形態において上述した一実施形態と同一の構成要素には同一の符号を付し、それらの説明を省略して上記一実施形態と相違する点を主に説明する。 Next, another embodiment of the present invention will be described with reference to FIGS. 11 to 14. In addition, in the other embodiment, the same components as those in the above-described embodiment are designated by the same reference numerals, and the description thereof will be omitted, and the differences from the above-described embodiment will be mainly described.

図11に示すように、他の実施形態における側方シール部13は、凹部41に隣接する凹部42を有している。図10では一方側の側方シール部13を示しているが、他方側の側方シール部13にも同様に凹部42を有する。以下、説明の便宜上、各凹部41、42を、それぞれ第1凹部41、第2凹部42と符合を分けて説明する。 As shown in FIG. 11, the side seal portion 13 in another embodiment has a recess 42 adjacent to the recess 41. Although FIG. 10 shows the side seal portion 13 on one side, the side seal portion 13 on the other side also has a recess 42. Hereinafter, for convenience of explanation, the recesses 41 and 42 will be described separately from the first recess 41 and the second recess 42, respectively.

第2凹部42は、第1凹部41に連続して、第1凹部41の外側に形成されている。第2凹部42は、側方シール部13において第1凹部41とは逆側の面に形成されている。第2凹部42は、他方(図11で下側)の包材10側から一方(図11で上側)の包材10側に食い込んだ形態である。第2凹部42の形成により、第1凹部41の外側に凸部42bが形成される。隣り合う第1凹部41及び第2凹部42は、断面形状がS字状に連続している。 The second recess 42 is formed on the outside of the first recess 41 continuously with the first recess 41. The second recess 42 is formed in the side seal portion 13 on the surface opposite to the first recess 41. The second recess 42 is in the form of biting into the packaging material 10 side of one (upper side in FIG. 11) from the packaging material 10 side of the other (lower side in FIG. 11). By forming the second concave portion 42, the convex portion 42b is formed on the outside of the first concave portion 41. The adjacent first recess 41 and the second recess 42 have an S-shaped continuous cross-sectional shape.

図12及び図13は、原反11が搬送される途中において、圧着部材50により、2つ分の側方シール部13Aを一括して形成するにあたり、第1凹部41と第2凹部42とを同時に形成する過程を示している。 12 and 13 show the first recess 41 and the second recess 42 when the crimping member 50 collectively forms the two side seal portions 13A while the original fabric 11 is being conveyed. It shows the process of forming at the same time.

上型51の圧着面における一対の凸型51aの内側に、凹型51bが形成されている。一方、下型52の圧着面の、各凹型51bに対応する部分に、各凹型51bに嵌合可能な一対の凸型52bが形成されている。各一対の凹型51b及び凸型52bのそれぞれは、側方シール部13に上記第2凹部42を形成し得る箇所に形成される。凸型52bは、チャック3を横断する方向に延在し、直線状の第2凹部42を形成することができる形状を有する。 A concave mold 51b is formed inside the pair of convex molds 51a on the crimping surface of the upper mold 51. On the other hand, a pair of convex molds 52b that can be fitted to each concave mold 51b are formed on a portion of the crimping surface of the lower mold 52 corresponding to each concave mold 51b. Each of the pair of concave molds 51b and convex molds 52b is formed at a position where the second concave portion 42 can be formed in the side seal portion 13. The convex shape 52b has a shape extending in a direction crossing the chuck 3 and capable of forming a linear second concave portion 42.

図13に示すように、加熱された上型51と下型52とにより原反11を挟んで圧着すると、各凸型51aが各凹型52aにそれぞれ嵌合し、各凸型52bが各凹型51bにそれぞれ嵌合する。これにより、上記実施形態と同様に第1凹部41が形成されると同時に、下側の包材10の原反11bの外面から上側の原反11aの方向に凸型52bが押し付けられることにより、下側の原反11b側から上側の原反11a側に食い込んだ第2凹部42が形成される。 As shown in FIG. 13, when the original fabric 11 is sandwiched between the heated upper mold 51 and the lower mold 52 and crimped, each convex mold 51a is fitted to each concave mold 52a, and each convex mold 52b is each concave mold 51b. Fit into each. As a result, the first concave portion 41 is formed as in the above embodiment, and at the same time, the convex type 52b is pressed from the outer surface of the raw fabric 11b of the lower packaging material 10 toward the upper raw fabric 11a. A second recess 42 that bites into the upper raw fabric 11a side from the lower original fabric 11b side is formed.

図14に示すように、上記切断線SをカッターTで切断することにより、切断された両側の側方シール部13のそれぞれは、第1凹部及び第2凹部42を有するものとなる。このように2つ分の側方シール部13Aの幅方向両端に第1凹部41及び第2凹部42をそれぞれ形成する工程と、切断線Sを切断する工程を順次行うことにより、左右の側方シール部13に第1凹部41及び第2凹部42が形成された包装袋1を連続的に得る。 As shown in FIG. 14, by cutting the cutting line S with the cutter T, each of the cut side seal portions 13 on both sides has a first recess and a second recess 42. By sequentially performing the steps of forming the first recess 41 and the second recess 42 at both ends of the two side seal portions 13A in the width direction and the step of cutting the cutting line S, the left and right sides are laterally formed. The packaging bag 1 in which the first recess 41 and the second recess 42 are formed in the seal portion 13 is continuously obtained.

他の実施形態では、第1凹部41の外側に、更に第2凹部42が形成されている。この第2凹部42は、側方シール部13の第1凹部41が形成された側とは反対側の包材10側から、もう一方の包材10側に食い込んでいる。第2凹部42を有することにより、第1凹部41が形成された部分の側方シール部13が、チャック3を強い力で開くなどして第1凹部41の部分に剥離が生じても、第2凹部42によって、第1凹部41と同様に作用して、チャック3を広く開くことができる。 In another embodiment, a second recess 42 is further formed on the outside of the first recess 41. The second recess 42 bites into the other packaging material 10 side from the packaging material 10 side opposite to the side where the first recess 41 of the side sealing portion 13 is formed. By having the second recess 42, even if the side seal portion 13 of the portion where the first recess 41 is formed is peeled off from the portion of the first recess 41 by opening the chuck 3 with a strong force or the like. The two recesses 42 act in the same manner as the first recess 41, allowing the chuck 3 to be widely opened.

本発明は上記実施形態の態様に制限されるものではなく、適宜変更が可能である。
例えば、凹部は、チャック開封時に開口部の両端部を広くできるように、一方の包材側から他方の包材側に食い込むようにして形成されれば、いかなる形状であってよい。また、凹部があることによってチャック開封時に現出する内壁部41aは、上述した癖付けによって現出する態様の一例であり、開口端部を広くできれば、いかなる態様であってよい。
The present invention is not limited to the embodiments described above, and can be appropriately modified.
For example, the recess may have any shape as long as it is formed so as to bite from one packaging material side to the other packaging material side so that both ends of the opening can be widened when the chuck is opened. Further, the inner wall portion 41a that appears when the chuck is opened due to the presence of the recess is an example of a mode that appears by the above-mentioned habit, and may be any mode as long as the open end portion can be widened.

1 チャック付き包装袋
2 袋本体
3 チャック
10 包材
11 原反
12 三方シール部(シール部)
13 側方シール部
13A 2つ分の側方シール部
16 開口部
41、42 凹部
41a 内壁部
50 圧着部材
51a 凸型
1 Packaging bag with zipper 2 Bag body 3 Chuck 10 Packaging material 11 Original fabric 12 Three-way seal part (seal part)
13 Side seal part 13A Two side seal parts 16 Openings 41, 42 Recesses 41a Inner wall 50 Crimping member 51a Convex type

Claims (8)

2枚の包材がシール部を介して袋状に接合され、離間する前記シール部の間に開口部を有する袋本体と、
前記開口部を開閉可能に封止するチャックと、を備えるチャック付き包装袋において、
前記シール部における前記チャックの端部に近接する内側端部に、一方の前記包材側から他方の前記包材側に食い込んだ凹部が形成される、チャック付き包装袋。
A bag body in which two packaging materials are joined in a bag shape via a sealing portion and has an opening between the sealing portions separated from each other.
In a packaging bag with a zipper, which comprises a zipper that seals the opening openable and closable.
A packaging bag with a zipper, in which a recess is formed in the inner end portion of the sealing portion close to the end portion of the chuck, from one side of the packaging material to the other side of the packaging material.
前記チャックを開いた状態で、前記チャックの端部に、前記凹部によって前記チャックの開く方向に沿って延在する内壁部が形成される、請求項1に記載のチャック付き包装袋。 The packaging bag with a zipper according to claim 1, wherein an inner wall portion extending along the opening direction of the zipper is formed at an end portion of the zipper with the zipper open. 前記凹部は、前記チャックを横断する方向に延在する直線状に形成される、請求項1または2に記載のチャック付き包装袋。 The packaging bag with a zipper according to claim 1 or 2, wherein the recess is formed in a straight line extending in a direction extending across the zipper. 前記シール部における前記内側端部に、他方の前記包材側から一方の前記包材側に食い込んだ凹部が更に形成される、請求項1~3のいずれかに記載のチャック付き包装袋。 The packaging bag with a zipper according to any one of claims 1 to 3, wherein a recess that bites into one of the packaging materials from the other packaging material side is further formed at the inner end of the sealing portion. 前記凹部は、前記チャックを横断する方向に延在する直線状に形成される、請求項4に記載のチャック付き包装袋。 The packaging bag with a zipper according to claim 4, wherein the recess is formed in a straight line extending in a direction extending across the zipper. 2枚の包材がシール部を介して袋状に接合され、離間する前記シール部の間に開口部を有する袋本体と、前記開口部を開閉可能に封止するチャックと、を備えるチャック付き包装袋を製造するにあたり、
形成される前記シール部における前記チャックの端部に近接する内側端部に対して、一方の前記包材の外面から他方の前記包材の方向に凸型を押し付けることにより、前記シール部に、一方の前記包材側から他方の前記包材側に食い込んだ凹部を形成する、チャック付き包装袋の製造方法。
With a chuck provided with a bag body in which two packaging materials are joined in a bag shape via a seal portion and have an opening between the seal portions separated from each other, and a chuck for sealing the opening so as to be openable and closable. In manufacturing packaging bags
By pressing the convex shape from the outer surface of one of the packaging materials toward the other packaging material against the inner end portion of the sealing portion formed near the end of the chuck, the sealing portion can be pressed. A method for manufacturing a packaging bag with a zipper, which forms a recess that bites into the packaging material side from one side to the other packaging material side.
前記シール部は、圧着部材により前記2枚の包材を圧着して形成され、
前記凸型は、前記圧着部材に設けられ、
前記シール部を形成すると同時に、前記凸型により前記凹部を形成する、請求項6に記載のチャック付き包装袋の製造方法。
The seal portion is formed by crimping the two packaging materials with a crimping member.
The convex shape is provided on the crimping member, and the convex shape is provided on the crimping member.
The method for manufacturing a packaging bag with a zipper according to claim 6, wherein at the same time as forming the seal portion, the concave portion is formed by the convex shape.
重ねた2枚の包材の原反を搬送する途中において、搬送方向に連続して前記原反に設けられる2つの包装袋の境界にまたがって2つ分の前記シール部を前記圧着部材により一括して形成すると同時に、当該2つ分の前記シール部のそれぞれに前記圧着部材に設けられた前記凸型により前記凹部を形成し、
次いで、前記境界を切断する、請求項7に記載のチャック付き包装袋の製造方法。
In the middle of transporting the raw fabrics of the two stacked packaging materials, the two sealing portions are bundled by the crimping member across the boundary between the two packaging bags provided on the raw fabrics continuously in the transport direction. At the same time, the concave portion is formed in each of the two sealing portions by the convex shape provided on the crimping member.
The method for manufacturing a packaging bag with a zipper according to claim 7, wherein the boundary is then cut.
JP2020135958A 2020-08-11 2020-08-11 Packaging bag with fastener and manufacturing method of the same Pending JP2022032312A (en)

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