JP2017052152A - Method of manufacturing self-supporting packaging bag with spout plug - Google Patents

Method of manufacturing self-supporting packaging bag with spout plug Download PDF

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JP2017052152A
JP2017052152A JP2015176914A JP2015176914A JP2017052152A JP 2017052152 A JP2017052152 A JP 2017052152A JP 2015176914 A JP2015176914 A JP 2015176914A JP 2015176914 A JP2015176914 A JP 2015176914A JP 2017052152 A JP2017052152 A JP 2017052152A
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bag
triangular
seal
sheet
self
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JP6672650B2 (en
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中島 篤志
Atsushi Nakajima
篤志 中島
信之 渡辺
Nobuyuki Watanabe
信之 渡辺
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Toppan Inc
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Toppan Printing Co Ltd
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Abstract

PROBLEM TO BE SOLVED: To provide a packaging bag which has a bag bottom with planar extension for showing excellent self-supporting properties by preventing a structure in which a vertical seal provided in a bag front surface center and a bag rear surface center in a bag body part reaches the bag bottom while utilizing that the planar extension is easily formed in the bag bottom by providing a gusset in the bag body part.SOLUTION: A triangular part 19 is formed in a state to continue to a bag bottom part 14 that is spread and formed while one bag side surface lower part is overlapped with a bag front surface lower part and a bag rear surface lower part in a bag body part 2. After making the triangular part 19 into a thin plate shape by heat-sealing, the triangular part 19 is folded to the side of a bag bottom part 14 for overlapping in a state a bag bottom part forming means 24 is positioned to correspond to a boundary between the triangular part and the bag bottom part 14, and the triangular part 19 and the bag bottom part 14 are sandwiched by the bag bottom part forming means 24 and a pressure-bonding means 27 to fix by pressure-bonding.SELECTED DRAWING: Figure 1

Description

本発明は、シャンプー、リンス、液体洗剤などのトイレタリー製品の詰め替え容器やそのトイレタリー製品を充填した一次容器、調味料を収容した一次容器、他の液体製品の一次容器や詰め替え容器などである自立包装袋であって、シーラント層を片面に有する積層構成の合成樹脂製シートを所要部分でヒートシールして上部隅に注出口栓を有する自立性が良好な自立包装袋の製造方法に関するものである。   The present invention relates to a refill container for toiletry products such as shampoo, rinse, and liquid detergent, a primary container filled with the toiletry product, a primary container containing seasonings, and a primary container or refill container for other liquid products. The present invention relates to a method for manufacturing a self-supporting packaging bag having a good self-supporting property, in which a laminated synthetic resin sheet having a sealant layer on one side is heat-sealed at a required portion and a spout stopper is provided at an upper corner.

合成樹脂製シートの所要部分をヒートシールして収容物、例えば液体などを収容することができる包装袋が従来から各種提案されている。そして、このような包装袋の内、広がりのある袋底部を袋胴部の下部として備えて自立できる包装袋がある。   Various types of packaging bags have been conventionally proposed in which a required portion of a synthetic resin sheet is heat-sealed to accommodate a stored item such as a liquid. Among such packaging bags, there is a packaging bag that can be self-supporting with a wide bag bottom as a lower part of the bag body.

例えば特許文献1に示されている包装袋ではピロータイプの製袋の応用からなるものであって、一枚の合成樹脂製シートを筒状にしてそのシートの縦方向の側辺同士を袋胴部での袋背面側で重ね合わせてヒートシールするとともに、袋胴部の下部でその袋胴部が扁平になるように重ね合わせて相対するシートの下辺同士をヒートシールしている。そして、袋胴部での袋正面と袋背面とを離間することで、下辺同士をヒートシールした部分が中心となるようにして袋正面側から袋底に回り込むシートと袋背面側から袋底に回り込むシートとで広がりのある袋底を形成している。   For example, the packaging bag shown in Patent Document 1 is made of an application of pillow-type bag making, and a sheet of synthetic resin is formed into a cylindrical shape and the longitudinal sides of the sheet are connected to the bag body. The sheet is overlapped and heat-sealed on the back side of the bag, and the bottom sides of the opposite sheets are heat-sealed so as to be flat at the bottom of the bag body. And by separating the bag front and bag back at the bag body, the sheet that wraps around the bag bottom from the bag front side and the bag back side to the bag bottom so that the lower part is heat sealed A wide bag bottom is formed by the wrapping sheet.

さらに下辺同士をヒートシールした部分に沿った方向で対向する部分それぞれでは、袋正面側と袋背面側とから回り込んだ上記シートと、袋側面での袋底側のシートとが重なり合って略三角形状に張り出る状態としている。そして、この三角形状となった部分の基端をヒートシールして余剰箇所を切除することで袋底を略矩形状にして自立できる状態としており、収容物を充填した後に袋胴部の上部を扁平にしてシートの上辺同士をヒートシールすることで封止している。   Furthermore, in each of the parts facing in the direction along the part where the lower sides are heat-sealed, the sheet wrapped around from the front side of the bag and the back side of the bag overlaps the sheet on the bottom side of the bag and is substantially triangular. It is in a state of protruding into the shape. And the base end of this triangular portion is heat-sealed and the excess portion is excised, so that the bag bottom can be made into a substantially rectangular shape so that it can be self-supporting. It is sealed by flattening and heat-sealing the upper sides of the sheet.

また、特許文献2に示されている収納袋では一枚のシートを扁平なスリーブ状にして縦シールのヒートシールを行なうとともに、一部分を内側に折り入れてマチとし、下辺を線状にヒートシールしてから充填により袋底が開いて自立性が付与され、上辺をヒートシールして封止するものである。   In addition, in the storage bag shown in Patent Document 2, one sheet is formed into a flat sleeve shape and heat-sealed in a vertical seal, and a part is folded inward to form a gusset, and the lower side is heat-sealed linearly Then, the bottom of the bag is opened by filling to provide self-supporting property, and the upper side is heat-sealed and sealed.

また、特許文献3では上記特許文献1と同じようにピロータイプの製袋の応用からなるものであって、袋底において側方に張り出る三角形状部分の基端をヒートシールして余剰部を切除して袋底を略矩形とした包装袋が示されているとともに、スリーブ状とした袋胴部での対向する袋側面となる箇所それぞれを内側に折り込んでマチを付けるガセット形態の包装袋が示されている。   Further, in Patent Document 3, as in the above-mentioned Patent Document 1, it consists of an application of a pillow-type bag, and the base end of the triangular portion projecting sideways at the bottom of the bag is heat sealed to remove the surplus portion. A packaging bag with a substantially rectangular bottom is shown, and a gusset-shaped packaging bag that folds each of the opposite sides of the bag body in the sleeve-shaped bag body and attaches gussets. It is shown.

また、特許文献4では袋の両側面となる部分それぞれにシートを折り込んでマチを構成するとともに、袋正面と袋側面との間及び袋背面と袋側面との間については縦方向にヒートシールを行なって自立性を向上させるようにしており、そして、片方の袋側面側のヒートシールされたサイドシールに取っ手を一体に形成した包装袋が示されている。   Moreover, in patent document 4, while a sheet | seat is folded in each part used as the both sides | surfaces of a bag and a gusset is comprised, between the bag front surface and a bag side surface, and between a bag back surface and a bag side surface, heat seal is carried out in the vertical direction. A packaging bag is shown in which a handle is integrally formed with a heat-sealed side seal on the side of one bag side.

上述した従来の技術において特許文献3に示されている包装容器では注出口栓を袋上部に備えており、収容物を液体としたときにその液体を注出する時の注ぎ易さが向上するように図られていて、注出口栓の位置が袋上部の中央であることから収容物の充填は注出口栓を通して行なわれる。   In the above-described conventional technology, the packaging container disclosed in Patent Document 3 includes a spout stopper at the top of the bag, so that the ease of pouring when the liquid is poured when the contents are liquid is improved. Since the position of the spout stopper is at the center of the upper part of the bag, filling of the contents is performed through the spout stopper.

また、注出口栓を有して液体や流動性のあるものを収容物として充填して得られる自立タイプの包装袋としてはスタンディングパウチタイプのものが従来から多く流通している。そして、このスタンディングパウチタイプの包装袋においては、特許文献5に示されているように収容物の充填を効率よく行えるようにするために、注出口栓を袋上部の端部側に位置させて残りの袋上部の部分を充填口としているものが提案されている。   Moreover, as a self-supporting type packaging bag obtained by filling a liquid or fluid material as a container with a spout stopper, a standing pouch type has been widely distributed. And in this standing pouch type packaging bag, as shown in Patent Document 5, in order to efficiently fill the contents, the spout stopper is located on the end side of the upper part of the bag. The remaining bag upper part is proposed as a filling port.

この特許文献5では、注出口栓を袋上部の端部に偏倚させたスタンディングパウチタイプの上記包装袋を製造するに際し、袋上部の充填口とする未シール部分をバキュームキャップで開いてから収容物の充填を行なっている。スタンディングパウチタイプの包装袋自体は未充填の状態では扁平であるが、収容物が充填されることで袋胴部が膨らみ、また底マチが折り入れられている袋底部にあっても収容物が充填されることによって、袋底部での袋正面のシートと袋背面のシートの間が開きながら底マチが展開され、自立性のある袋形態となる。そして充填の後に充填口としていた未シール部分をヒートシールすることで、注出口栓を備えて充填済みとされたスタンディングパウチタイプの包装袋が製造される。   In this patent document 5, when manufacturing the above-mentioned packaging bag of the standing pouch type in which the spout stopper is biased to the end of the upper part of the bag, the unsealed part used as the filling port at the upper part of the bag is opened with a vacuum cap, Filling. The standing pouch-type packaging bag itself is flat when unfilled, but the bag body swells when the container is filled, and the container does not fit even at the bottom of the bag where the bottom gusset is folded. By filling, the bottom gusset is developed while the space between the sheet in front of the bag and the sheet on the back of the bag is opened at the bottom of the bag, and a self-supporting bag shape is obtained. Then, the unsealed portion that has been used as a filling port after filling is heat-sealed, whereby a standing pouch-type packaging bag having a spout stopper and filled is manufactured.

特開2001−328644号公報JP 2001-328644 A 特許第3364165号公報Japanese Patent No. 3364165 特開2002−308289号公報JP 2002-308289 A 特開平08−026302号公報Japanese Patent Laid-Open No. 08-026302 特開平06−048401号公報JP 06-0448401 A

近年、合成樹脂製シートの所要部分をヒートシールして製袋される包装袋に関し、手で持って注出作業などができる重さの範囲でその収容量を大きくすることが望まれるようになってきている。   In recent years, regarding packaging bags that are made by heat-sealing a required portion of a synthetic resin sheet, it has been desired to increase the capacity within the range of weight that can be held by hand and poured out. It is coming.

しかしながら、収容量の増大に応じて耐久性のある合成樹脂製シートを採用した場合、袋正面や袋背面に袋胴部を構成するシートを貼り合わせた縦のシール部分が位置するタイプの従来の包装袋では、このシール部分が袋底にも及ぶ構成となる。そして、この縦のシール部分の剛性が高いために曲がり難くなっていることから、収容物の充填に際して袋底に広がりが得られるように開いて充填を行なったとしても、前記シール部分があるシートとこれに連続する袋底とするシートとの間で適切な曲がりが生じないことから袋底が平面的に広がりのある形状とならずに自立し難い包装袋となる。   However, when a durable synthetic resin sheet is adopted in accordance with the increase in the amount of storage, a conventional type of seal in which a vertical seal portion is formed by bonding sheets constituting the bag body to the front or back of the bag. In the packaging bag, the seal portion extends to the bag bottom. And since the rigidity of this vertical seal portion is high, it is difficult to bend, so even if it is opened and filled so as to obtain a spread at the bottom of the bag when filling the contents, the sheet having the seal portion And a sheet serving as a bag bottom that is continuous therewith does not cause an appropriate bend, so that the bag bottom does not have a shape that spreads in a plane and becomes a packaging bag that is difficult to stand on its own.

また、自立性を確保する方法としては袋底部に底マチを設け、袋側面のマチと底マチとを備える包装袋が検討されるが、合成樹脂製シートの貼り合わせによって得られる包装袋では底マチと袋側面のマチとが重なった部分から収容物の漏れが生じ易くなったり、重なった部分の落下衝撃性が極端に低くなって破袋してしまうという問題がある。   In addition, as a method for ensuring the self-supporting property, a packaging bag having a bottom gusset at the bottom of the bag and having a gusset on the side of the bag and a bottom gusset is considered, but in a packaging bag obtained by bonding synthetic resin sheets, the bottom There is a problem that leakage of stored items is likely to occur from the portion where the gusset overlaps the gusset on the side of the bag, or the drop impact property of the overlapped portion becomes extremely low and the bag is broken.

また、スタンディングパウチタイプの形態を採用した場合には自立性については良好になると考えられるが、展開される底マチが袋胴部の両側辺に向けて上り傾斜する曲面形状を呈していて収容量の増加をこの袋底部側の広がりでは図り難い。そのため、収容量を増やすには袋幅を広げるか、或いは袋の高さを高くするしかなく、このスタンディングパウチの形態では効率よく収容量を増やすことができないという問題があった。   In addition, when the standing pouch type is adopted, the independence is considered to be good, but the developed bottom gusset has a curved shape that slopes up toward both sides of the bag body, and the capacity It is difficult to achieve an increase in the spread at the bottom of the bag. Therefore, the only way to increase the capacity is to widen the bag width or increase the height of the bag, and this standing pouch has a problem that the capacity cannot be increased efficiently.

そこで本発明は上記事情に鑑み、袋胴部にマチを設けることで袋底に平面的な広がりを形成し易くなる点を活かしつつ、袋胴部での袋正面中央や袋背面中央に設けられる縦シールが袋底に及ぶ構成とならない包装袋を製造することを課題とし、平面的な広がりを有する袋底を備えて自立性が良好な包装袋を提供することを目的とするものである。   Therefore, in view of the above circumstances, the present invention is provided at the center of the bag front and the back of the bag at the bag body while taking advantage of the fact that providing a gusset at the bag body makes it easier to form a flat spread on the bag bottom. An object of the present invention is to produce a packaging bag in which the vertical seal does not reach the bottom of the bag, and an object is to provide a packaging bag having a self-supporting property with a bag bottom having a planar spread.

(請求項1の発明)
本発明は上記課題を考慮してなされたもので、袋正面から一方の袋側面を経て袋背面に亘って位置した一枚の本体シートと他方の袋側面に位置して一方の袋側面側に折り込み可能に設けられた一枚のマチシートとで袋胴部が形成されていて、この袋胴部における本体シートの側辺とマチシートの側辺とをヒートシールしてなる側辺シール部分を備えるとともに、前記袋胴部の下部には折り込んだ前記マチシートを間にして二つ折りにより相対した本体シートの下辺に沿ってヒートシールしてなる下辺シール部分を備えた袋体に、注出口栓を取り付け、収容物の充填を行ない、袋胴部の上部をヒートシールして、注出口栓付き自立包装袋を製造するにあたり、
注出口栓取付前の袋体の袋胴部における前記一方の袋側面となる側に袋底部形成手段を挿入して、この袋底部形成手段の袋胴部の下部への配置によって袋正面と袋背面との間を広げて一方の袋側面を展開するとともに、前記下辺シール部分を間にして袋正面下部と袋背面下部とを平面方向に展開した袋底部を形成し、
前記袋底部の形成で前記一方の袋側面下部が前記袋正面下部と前記袋背面下部とに重なってなる三角形状部分をヒートシールして、袋底部の一方の袋側面側に、前記ヒートシールされた三角形状部分の基端であって前記袋正面と袋背面との対向方向に沿うシール辺を形成し、
前記袋底部形成手段を袋胴部から退避させた後に、袋胴部の上部に上記注出口栓の取り付けを行なうことを特徴とする注出口栓付き自立包装袋の製造方法を提供して、上記課題を解消するものである。
(Invention of Claim 1)
The present invention has been made in consideration of the above-mentioned problems, and is located on one bag side surface located on one bag side surface and one bag side surface located on the other bag side surface through one bag side surface from the bag front side. A bag body portion is formed with one gusset sheet provided so as to be foldable, and includes a side seal portion formed by heat-sealing the side of the main body sheet and the side of the gusset sheet in the bag body. In addition, a spout stopper is attached to the bag body having a lower side seal portion formed by heat-sealing along the lower side of the main body sheet opposed by folding in half between the folded gusset sheet at the lower part of the bag body, When filling the contents and heat-sealing the upper part of the bag body to produce a self-supporting packaging bag with a spout plug,
A bag bottom portion forming means is inserted into the side of the bag body portion of the bag body before the spout plug is attached, and the bag front portion and the bag are arranged by placing the bag bottom portion forming means at the lower portion of the bag body portion. While expanding between the back side and developing one side of the bag, forming the bottom of the bag that expands the lower front portion of the bag and the lower back portion of the bag in the plane direction with the lower seal portion in between,
In the formation of the bag bottom portion, the one bag side lower portion heat seals the triangular portion that overlaps the bag front lower portion and the bag rear lower portion, and the heat sealing is performed on one bag side surface side of the bag bottom portion. Forming a seal side along the opposing direction of the bag front and back of the bag at the base end of the triangular portion,
Providing a method for producing a self-standing packaging bag with a spout plug, wherein the spout plug is attached to the top of the bag body after the bag bottom forming means is retracted from the bag body, It solves the problem.

(請求項2の発明)
そして、本発明では、ヒートシールした三角形状部分での上記基端の部分以外を切除して、上記シール辺を袋正面と袋背面との対向方向に沿う細幅の帯状にすることが良好である。
(Invention of Claim 2)
And in this invention, it is good to cut out except the base end part in the triangular part which carried out heat sealing, and to make the said seal side into the strip | belt shape of a narrow width along the opposing direction of a bag front surface and a bag back surface. is there.

(請求項3の発明)
また、本発明では、上記三角形状部分を、該三角形状部分の上記基端に上記袋底部形成手段を対応位置させた状態で袋底部の下面側に折り重ねて、
前記三角形状部分とこの三角形状部分が重なる袋底部とを、袋胴部の内部に配置の前記袋底部形成手段と圧着手段とで挟み込んで、三角形状部分を袋底部の下面に圧着することが良好である。
(Invention of Claim 3)
In the present invention, the triangular portion is folded on the lower surface side of the bag bottom portion with the bag bottom portion forming means corresponding to the base end of the triangular portion,
The triangular portion and the bag bottom portion where the triangular portion overlaps are sandwiched between the bag bottom portion forming means and the crimping means arranged inside the bag body portion, and the triangular portion is crimped to the lower surface of the bag bottom portion. It is good.

(請求項4の発明)
また、本発明では、袋底部の上記下辺シール部分が位置している部分への上記三角形状部分の折り重ねにより、三角形状部分の下面に下辺シール部分を非表出にすることが良好である。
(Invention of Claim 4)
In the present invention, it is preferable that the lower seal portion is not exposed on the lower surface of the triangular portion by folding the triangular portion on the portion where the lower seal portion is located on the bottom of the bag. .

(請求項5の発明)
また、本発明では、一方の袋側面の上辺となる部分に注出口栓を取り付けることが良好である。
(Invention of Claim 5)
Moreover, in this invention, it is good to attach a spout stopper to the part used as the upper side of one bag side surface.

(請求項6の発明)
また、本発明では、注出口栓取付前の袋体が扁平とされている状態での側辺シール部分に対して取っ手を設けることが良好である。
(Invention of Claim 6)
Moreover, in this invention, it is good to provide a handle with respect to the side seal part in the state by which the bag body before spout stopper attachment is made flat.

(請求項1の発明の効果)
請求項1の発明によれば、袋胴部の下部に袋底部形成手段を挿入して袋底部を展開することで形成される袋側面下部側の三角形状部分をヒートシールして、その三角形状部分の基端をシール辺とし、そのシール辺を袋正面と袋背面との対向方向に沿うように形成していることから、一方の袋側面の下辺として前記シール辺を備えることとなるとともに、袋底部においても一方の袋側面側の辺に前記シール辺を備えることになる。
(Effect of the invention of claim 1)
According to the invention of claim 1, the triangular portion on the lower side of the bag side surface formed by inserting the bag bottom portion forming means into the lower portion of the bag body portion and developing the bag bottom portion is heat-sealed, and the triangular shape Since the base end of the part is a seal side and the seal side is formed so as to be along the facing direction of the bag front and back of the bag, the seal side is provided as the lower side of one bag side, Also in the bag bottom part, the side of the one bag side face is provided with the seal side.

そしてシール辺やこのシール辺を含む三角形状部分は剛性が高くなっており、この部位が袋正面と袋背面とが対向する方向に沿って位置するので、袋底部側で収容物に対する収容空間の拡大が確実に行なえる。また、製造された包装袋の前記シール辺が脚としてテーブルなどの上面に接して収容物を充填した状態でも良好な自立性が保たれるという優れた効果を奏する。さらに袋底部を展開した後に注出口栓を取り付けるので、袋底部形成手段と注出口栓との干渉を考慮する必要がなく、袋胴部への袋底部形成手段の挿入が簡単に行なえるという効果を奏する。   And the seal side and the triangular part including this seal side are high in rigidity, and this part is located along the direction in which the bag front and the bag back face each other. Enlargement can be done reliably. Moreover, even if the sealed side of the manufactured packaging bag is in contact with the upper surface of a table or the like as a leg and filled with the contents, there is an excellent effect that good self-supporting property is maintained. Further, since the spout stopper is attached after the bag bottom is expanded, there is no need to consider interference between the bag bottom forming means and the spout stopper, and the effect that the bag bottom forming means can be easily inserted into the bag body. Play.

(請求項2の発明の効果)
請求項2の発明によれば、袋正面と袋背面との対向方向に沿うシール辺が帯状となっているため、側方へ大きく張り出すことがなく、取り扱いが容易な包装袋が得られる。
(Effect of the invention of claim 2)
According to invention of Claim 2, since the seal | sticker edge along the opposing direction of a bag front surface and a bag back surface is strip | belt shape, it does not project greatly to a side and a packaging bag with easy handling is obtained.

(請求項3の発明の効果)
請求項3の発明によれば、三角形状部分をヒートシールすることでこの三角形状部分が薄板状となり、薄板状とされた三角形状部分を袋底部の下に折り重ねて固定していることから、袋底部の一方の袋側面側の広い領域の形状が潰れたり変形したりせずに安定したものとなる。
(Effect of the invention of claim 3)
According to the invention of claim 3, by heat-sealing the triangular part, the triangular part becomes a thin plate, and the triangular part made into a thin plate is folded and fixed under the bag bottom. The shape of the wide region on the side of one bag at the bag bottom is stable without being crushed or deformed.

(請求項4の発明の効果)
請求項4の発明によれば、袋底部の三角形状部分が重なっている部分では下辺シート部分を非表出にしており、三角形状部分の下面(包装袋の下方側)において前記下辺シール部分が存在することによる凸凹がなくなる。よって、袋の自立性が向上する。
(Effect of the invention of claim 4)
According to the invention of claim 4, the lower sheet portion is not exposed at the portion where the triangular portion of the bag bottom portion overlaps, and the lower side seal portion is located on the lower surface of the triangular portion (the lower side of the packaging bag). Unevenness due to existence is eliminated. Therefore, the independence of the bag is improved.

(請求項5の発明の効果)
請求項5の発明によれば、一方の袋側面の上辺となる部分に注出口栓を取り付けられるので、この注出口栓を取り付けた後で収容物を充填する際に開く充填口を袋胴部の上部に間口を広くして形成できるという効果を奏する。
(Effect of the invention of claim 5)
According to invention of Claim 5, since a spout stopper can be attached to the part which becomes the upper side of one bag side surface, the filling opening which opens when filling the contents after attaching this spout stopper is a bag body part. The effect is that the frontage can be widened at the top of the.

(請求項6の発明の効果)
請求項6の発明によれば、注出口栓取付前の袋体が扁平とされている状態での側辺シール部分に対して取っ手を設けるので、その取っ手自体を扁平な袋体に対する切り込みや打ち抜きなどで簡単に形成できるという効果を奏する。
(Effect of the invention of claim 6)
According to the invention of claim 6, since the handle is provided for the side seal portion in a state where the bag body before the spout plug is attached is flat, the handle itself is cut or punched into the flat bag body. The effect is that it can be easily formed.

本発明の一例によりなる自立包装袋を一方の袋側面の斜め上方から見た状態で示す説明図である。It is explanatory drawing which shows the self-standing packaging bag which consists of an example of this invention in the state seen from diagonally upward of one bag side surface. 同じく自立包装袋を他方の袋側面の斜め上方から見た状態で示す説明図である。It is explanatory drawing similarly shown in the state which looked at the self-supporting packaging bag from diagonally upward of the other bag side surface. 同じく自立包装袋を袋底部側から見た状態で示す説明図である。It is explanatory drawing shown in the state which looked at the self-supporting packaging bag from the bag bottom part side similarly. 自立包装袋における三角形状部分を示す説明図である。It is explanatory drawing which shows the triangular-shaped part in a self-supporting packaging bag. 袋体の形態で傾倒抑止手段が形成された状態を概略的に示す説明図である。It is explanatory drawing which shows roughly the state in which the inclination suppression means was formed in the form of a bag. 本発明の製造方法の一例を示すもので、(a)は袋体を示す説明図、(b)は注出口栓を取り付ける部分をカットした状態を示す説明図、(c)は袋底部形成手段を挿入した状態を示す説明図である。An example of the manufacturing method of this invention is shown, (a) is explanatory drawing which shows a bag body, (b) is explanatory drawing which shows the state which cut the part which attaches a spout stopper, (c) is a bag bottom part formation means It is explanatory drawing which shows the state which inserted. 同じく製造方法の一例を示すもので、(d)は三角形状部分のヒートシールを示す説明図、(e)は接着剤の塗布を示す説明図、(f)は三角形状部分を折り重ねて圧着固定する状態を示す説明図である。Similarly, it shows an example of a manufacturing method, (d) is an explanatory view showing heat sealing of a triangular portion, (e) is an explanatory view showing application of an adhesive, and (f) is a crimping by folding the triangular portion. It is explanatory drawing which shows the state to fix. 同じく製造方法の一例を示すもので、(g)は袋底部形成手段が退避した袋体を示す説明図、(h)は注出口栓を取り付けた状態を示す説明図、(i)は収容物の充填を示す説明図である。FIG. 6 shows an example of the manufacturing method, wherein (g) is an explanatory view showing the bag body with the bag bottom forming means retracted, (h) is an explanatory view showing a state in which a spout stopper is attached, and (i) is an item to be stored. It is explanatory drawing which shows filling. 袋上部におけるヒートシールを示す説明図である。It is explanatory drawing which shows the heat seal in a bag upper part. 他の実施の例におけるシール辺の形成を示す説明図である。It is explanatory drawing which shows formation of the seal | sticker edge in the other Example. 他の実施の例におけるシール辺の形成を斜め上方から見た状態で示す説明図である。It is explanatory drawing which shows the formation of the seal | sticker edge in the other Example in the state seen from diagonally upward.

つぎに本発明を図1から図11に示す実施の形態に基づいて詳細に説明する。図中1は自立包装袋で、該自立包装袋1は図1に示されているように袋胴部2の上部が袋幅方向に亘って扁平な状態にして閉じられていて、その一端側に注出口栓3が取り付けられているとともに、袋胴部2の下部は平面方向に広がりのある略矩形形状にして閉じられており、テーブルや棚などの上に置いたときに安定して自立できるようにしているものである。   Next, the present invention will be described in detail based on the embodiment shown in FIGS. In the figure, 1 is a self-supporting packaging bag, and the self-supporting packaging bag 1 is closed with the upper portion of the bag body 2 flattened across the bag width direction as shown in FIG. A spout stopper 3 is attached to the bottom of the bag body 2, and the lower portion of the bag body 2 is closed in a substantially rectangular shape spreading in the plane direction. It is something that can be done.

そして、自立包装袋1は前記注出口栓3以外の部分が合成樹脂製シートからなるもので、この合成樹脂製シートは片面をシーラント層とした積層シートであって、所要部分をヒートシールして貼り合わせていて、この貼り合わせにて袋底部が形成され、上部も封止された袋状としている。なお、図1〜3においては説明を容易にするために収容物は図示していない。   The self-supporting packaging bag 1 is made of a synthetic resin sheet, except for the spout plug 3. The synthetic resin sheet is a laminated sheet with a sealant layer on one side, and heat-seals the required part. The bag bottom is formed by this bonding, and the upper part is sealed. In FIGS. 1 to 3, the contents are not shown for ease of explanation.

(袋胴部)
上記袋胴部2は、袋正面4から一方の袋側面5を経て袋背面6に亘って位置する一枚の本体シート7と、前記一方の袋側面5と袋幅方向で相対する他方の袋側面8に位置してその一方の袋側面5側に折り込み可能とされた一枚のマチシート9とからなるものである。本体シート7とマチシート9とは共に同じ合成樹脂製シートであって、本体シート7とマチシート9との相対する辺部をヒートシールして袋胴部2が形成され、さらに本体シート7の側辺とこれにヒートシールにより貼り合わされているマチシート9の側辺との側辺シール部分10それぞれが外方に延設され、図2に示すようにこの側辺シール部分10それぞれに切り込みなどを行なって、手掛けできる取っ手11を形成している。
(Bag body)
The bag body 2 includes one main body sheet 7 positioned from the bag front surface 4 through one bag side surface 5 to the bag back surface 6 and the other bag surface 5 facing the one bag side surface 5 in the bag width direction. It consists of one gusset sheet 9 which is located on the side surface 8 and can be folded to the side surface 5 of one of the bags. The main body sheet 7 and the gusset sheet 9 are both the same synthetic resin sheet, and the bag body portion 2 is formed by heat-sealing the opposite side portions of the main body sheet 7 and the gusset sheet 9. Each of the side seal portions 10 with the side of the gusset sheet 9 bonded thereto by heat sealing is extended outward, and the side seal portions 10 are cut and cut as shown in FIG. A handle 11 that can be handled is formed.

(袋上部)
袋胴部2の上部には上述したように扁平な状態として閉じられている袋上部12が形成されていて、二つ折りとした本体シート7の間にマチシート9を折り込んで配し、マチシート9を間にした状態で本体シート7の相対する上辺に沿ってヒートシールをして上辺シール部分13を備えるとともに、前記ヒートシールに際して事前に一方の袋側面5側となる部分に上記注出口栓3の取付部を本体シート7の上辺の間に挟み込みして溶着することで、注出口栓3が上辺シール部分13での一方の袋側面5側に有するようにして袋上部12が形成されている。なお、袋上部12での注出口栓3が取り付けられている部分以外の部分は、後述するように包装袋1に収容物を充填した後にヒートシールが行なわれる。
(Top of bag)
The bag upper portion 12 is formed with a bag upper portion 12 which is closed in a flat state as described above, and the gusset sheet 9 is folded between the main body sheets 7 which are folded in two. Heat seal is performed along the opposite upper side of the main body sheet 7 in a state of being interposed, and the upper side seal part 13 is provided, and the spout plug 3 is provided in a part on the side of one bag side surface 5 before the heat sealing. By sandwiching the attachment portion between the upper sides of the main body sheet 7 and welding, the bag upper portion 12 is formed so that the spout stopper 3 has the one side surface 5 side of the upper side seal portion 13. It should be noted that the portions other than the portion where the spout stopper 3 is attached in the bag upper portion 12 are heat-sealed after the packaging bag 1 is filled with the contents as will be described later.

(袋底部)
袋胴部2の下部にはこの自立包装袋1をテーブルや棚などの平面に正置したときに自立することができるようにするために平面方向に広がった袋底部14を形成して、この袋底部14によって袋胴部2の下部が閉じられている。袋底部14は、図3に示すように折り込んだマチシート9を間にして二つ折りにより相対した本体シート7の下辺に沿ってヒートシールをし、そのヒートシールによりなる下辺シール部分15を備えている。この下辺シール部分15を得るためのヒートシールは、マチシート9の取付のためのヒートシールと同時に行なうことが可能である。
(Bag bottom)
In the lower part of the bag body 2, a bag bottom portion 14 is formed which extends in the plane direction so that the self-standing packaging bag 1 can stand upright when placed on a flat surface such as a table or a shelf. The bottom of the bag body 2 is closed by the bag bottom 14. As shown in FIG. 3, the bag bottom part 14 is heat-sealed along the lower side of the main body sheet 7 opposed by folding the gusset sheet 9 in between, and is provided with a lower side sealing part 15 formed by the heat sealing. . The heat sealing for obtaining the lower side sealing portion 15 can be performed simultaneously with the heat sealing for attaching the gusset sheet 9.

そして、袋底部14では、上記下辺シール部分15の位置を通る立平面を中心として袋胴部2での袋正面4と袋背面6との間が開くように袋胴部2の内側を広げ、袋胴部2での袋正面4と袋背面6とを離間させることで、本体シート7における袋正面4につながる袋胴部2の下部側のシート部分16(袋正面下部)と、袋背面6につながる袋胴部2の下部側のシート部分17(袋背面下部)とが下辺シール部分15側に向けて回り込むようになり、また、マチシート9における他方の袋側面8につながる袋胴部2の下部側のシート部分18も下辺シール部分側に向けて回り込むようになり、これによって袋底部14を、袋正面4と袋背面6とが離間した方向と袋幅方向とに広がってなる略矩形状に形成している。(図4参照)   And in the bag bottom part 14, the inside of the bag body part 2 is expanded so that the space between the bag front face 4 and the bag back face 6 in the bag body part 2 is opened around the vertical plane passing through the position of the lower side seal portion 15. By separating the bag front surface 4 and the bag back surface 6 at the bag body portion 2, the sheet portion 16 (the bag front lower portion) on the lower side of the bag body portion 2 connected to the bag front surface 4 in the main body sheet 7 and the bag back surface 6. The lower portion of the bag body 2 connected to the lower portion of the bag body 2 (the lower portion on the back of the bag) wraps around the lower seal portion 15 side, and the bag body 2 connected to the other side surface 8 of the gusset sheet 9 The lower-side sheet portion 18 also wraps around toward the lower seal portion, whereby the bag bottom portion 14 extends in a direction in which the bag front surface 4 and the bag rear surface 6 are separated from each other and in the bag width direction. Is formed. (See Figure 4)

袋底部14での一方の袋側面5側には、剛性が高められた三角形状部分19を上記袋正面4と袋背面6との離間方向に沿った方向に幅広にして備えていて、この三角形状部分19の基端を、一方の袋側面5側のシール辺22としている。そして、図1から図3に示すように自立包装袋1では一方の袋側面5が幅広の三角形状部分19の基部である前記シール辺22を下辺側として起立した状態となっていて、略矩形状とされた袋底部14の前記剛性が高い三角形状部分19を接地させて、また、上記シート部分16とシート部分17と他方の袋側面8側のシート部分18を接地させることで、充填済みの本自立包装袋1が安定して自立するものとなる。   On the side of one bag side surface 5 at the bag bottom portion 14, a triangular portion 19 with increased rigidity is provided so as to be wide in the direction along the separation direction between the bag front surface 4 and the bag back surface 6. The base end of the shape portion 19 is a seal side 22 on the side of one bag side surface 5. As shown in FIGS. 1 to 3, in the self-supporting packaging bag 1, one bag side surface 5 stands up with the seal side 22, which is the base of the wide triangular portion 19, as the lower side, and is substantially rectangular. Filled by grounding the highly rigid triangular portion 19 of the shaped bag bottom 14 and grounding the sheet portion 16, the sheet portion 17, and the sheet portion 18 on the other bag side surface 8 side. This self-supporting packaging bag 1 is stable and self-supporting.

また、一方の袋側面5の上方に注出口栓3が位置されていて、注出口栓3と一方の袋側面5とに対して袋幅方向で反対側に配置されている上記取っ手11に手を掛けて持ち上げ、注出口栓3が下となるように傾けることで、ブロー容器のようにして収容物を簡単に注出することができるものとなる。   Further, the spout stopper 3 is positioned above one bag side surface 5, and the handle 11 is disposed on the opposite side in the bag width direction with respect to the spout stopper 3 and one bag side surface 5. It is possible to easily pour out the contents like a blow container by tilting so that the spout stopper 3 is at the bottom.

(三角形状部分)
上記三角形状部分19は、袋底部14の形成に際して袋正面4と袋背面6との間を開くことで、一方の袋側面5における袋胴部2の下部側のシート部分20が、図4に示されているように、袋正面4と袋背面6とのそれぞれにおける袋胴部2の下部側の上記シート部分16、17に重なり、前記シート部分20をシート部分16、17に重ね合わせた状態でヒートシールして剛性を高めて薄板状にしたものであり、略三角形状にして上述のように袋正面4と袋背面6とが離間した方向で幅広としている。
(Triangular part)
When the bag-shaped bottom portion 14 is formed, the triangular portion 19 opens between the bag front surface 4 and the bag back surface 6 so that the sheet portion 20 on the lower side of the bag body portion 2 on one bag side surface 5 is shown in FIG. As shown, the bag portion 4 overlaps with the sheet portions 16 and 17 on the lower side of the bag body 2 on each of the bag front surface 4 and the bag back surface 6, and the sheet portion 20 overlaps with the sheet portions 16 and 17. Thus, it is heat-sealed to increase the rigidity into a thin plate shape, and has a substantially triangular shape and is wide in the direction in which the bag front surface 4 and the bag back surface 6 are separated as described above.

そして、上記三角形状部分19がシール辺22の部分から袋底部14側に折り重ねられて、袋底部14の下面にホットメルトなどの接着剤を介して貼り合わされて圧着固定されており、この三角形状部分19を含む袋底部14の平面視形状を上述のように略矩形状とし、この袋底部14での一方の袋側面5側としたシール辺22を、袋正面4と袋背面6との対向方向に沿って連続する箇所として構成されている。   The triangular portion 19 is folded from the seal side 22 portion toward the bag bottom portion 14 side, and is bonded to the lower surface of the bag bottom portion 14 via an adhesive such as hot melt, and is fixed by pressure bonding. The bag bottom portion 14 including the shape portion 19 has a substantially rectangular shape as described above, and the seal side 22 on the side of the bag side 5 at the bag bottom portion 14 is formed between the bag front surface 4 and the bag back surface 6. It is comprised as a location which continues along an opposing direction.

(下辺シール部分による傾倒抑止手段)
上記袋底部14には、一方の袋側面5を略起立状態にして袋幅方向での外方に向けて傾倒しないようにする傾倒抑止手段21が備えられている。前記傾倒抑止手段21は、袋底部14の袋幅方向であって袋底部14の中央を通って上記三角形状部分19にも及ぶ位置となる上記下辺シール部分15からなるものである。そして、図5において袋底部の形成前である扁平な袋体の形態で示されているように、折り込んだマチシート9を間にして二つ折りにより相対した本体シート7の下辺に沿ってヒートシールするときに、そのシール箇所の袋胴部2の高さ方向に対する傾斜角度θを直角または鋭角にして前記下辺シール部分15が得られるようにしている。なお、図5において袋胴部2の高さ方向を矢印にて示した。
(Tilt prevention means by the bottom seal part)
The bag bottom portion 14 is provided with a tilt restraining means 21 that keeps one bag side surface 5 in a substantially upright state so as not to tilt outward in the bag width direction. The tilt restraining means 21 is composed of the lower side seal portion 15 which is in the bag width direction of the bag bottom portion 14 and passes through the center of the bag bottom portion 14 to reach the triangular portion 19. And as shown in the form of the flat bag body before formation of a bag bottom part in FIG. 5, it heat-seals along the lower side of the main body sheet | seat 7 which faced by folding between the folded gusset sheet 9 in between. In some cases, the lower side seal portion 15 is obtained by setting the inclination angle θ of the seal portion to the height direction of the bag body portion 2 to be a right angle or an acute angle. In FIG. 5, the height direction of the bag body 2 is indicated by an arrow.

袋底部14が傾倒抑止手段21を備えて形成されることの有用な点はつぎの通りである。略矩形状となっている袋底部14に対し、袋上部12は注出口栓3が存在するものの、袋幅方向に沿って平たい扁平な形態となっていることから、一方の袋側面5は袋幅方向での外方に傾いた面として形成される。そして、収容物が充填されている時点では袋胴部2が胴膨れし易く、外方に傾いている一方の袋側面5が胴膨れして袋縦方向にも丸味を帯びた傾斜面となると、この一方の袋側面5の外方への傾きが大きくなって倒れる可能性がある。   The useful point that the bag bottom part 14 is formed with the tilt prevention means 21 is as follows. Although the bag top portion 12 has the spout stopper 3 with respect to the bag bottom portion 14 having a substantially rectangular shape, one bag side surface 5 is a bag because it has a flat shape along the bag width direction. It is formed as a surface inclined outward in the width direction. At the time when the contents are filled, the bag body portion 2 tends to swell, and when one bag side surface 5 that is inclined outwardly swells and becomes a rounded inclined surface in the bag longitudinal direction. There is a possibility that the inclination of the one side surface 5 of the bag 5 will increase and fall down.

そこで、袋胴部2の高さ方向に対する傾斜角度を直角または鋭角にした下辺シール部分15からなる傾倒抑止手段21を備えていて、袋胴部2の高さ方向に対する傾斜角度が開くとしても直角として形成されている下辺シール部分15からなる傾倒抑止手段21が存在することで、一方の袋側面5が略起立した形態の自立包装袋が得られ、好ましくは傾倒抑止手段21を、前記傾斜角度を鋭角にして形成した下辺シール部分15からなるものとすることで、一方の袋側面5が起立する度合の高い形態の自立包装袋が得られる。   In view of this, there is provided a tilt restraining means 21 comprising a bottom seal portion 15 having a right angle or an acute angle of inclination with respect to the height direction of the bag body 2, and even if the inclination angle with respect to the height direction of the bag body 2 opens. The tilt restraining means 21 formed of the lower side seal portion 15 formed as a self-standing packaging bag with one bag side surface 5 substantially upright is obtained. The self-standing packaging bag having a high degree of rising of one bag side surface 5 can be obtained.

さらに、下辺シール部分15が袋胴部2の下部をヒートシールしてなるものであることから、上述したように下辺シール部分15は三角形状部分19にも位置し、この三角形状部分19を袋底部14の下辺シール部分15が位置している部分に折り重ねて、袋底部14の下面に対して貼り合わせし圧着固定している。そのため、三角形状部分19の下面には下辺シール部分15が非表出されており、三角形状部分19の位置で下辺シール部分15が表出することでの凸凹が生じないようにしている。勿論、上記傾倒抑止手段21の作用がなくなるになるわけではない。   Further, since the lower side seal portion 15 is formed by heat-sealing the lower portion of the bag body 2, the lower side seal portion 15 is also located in the triangular portion 19 as described above. It is folded on the portion where the bottom side seal portion 15 of the bottom portion 14 is located, and bonded to the lower surface of the bag bottom portion 14 and fixed by pressure bonding. Therefore, the lower side seal portion 15 is not exposed on the lower surface of the triangular portion 19, and unevenness due to the lower side seal portion 15 being exposed at the position of the triangular portion 19 is prevented from occurring. Of course, the function of the tilt prevention means 21 is not lost.

(製造方法)
図6から図9は上記自立包装袋1の製造の順序を示していて、収容物が充填された注出口栓付きの自立包装袋1の製造の一例を説明する。
(a)まず、ストッカーからバキューム機器などを用いて袋体23を一体ずつ取り出して次工程へと送り出す。このときの袋体23は扁平な形態であって、一枚の本体シート7が二つ折りされているとともに、その内側に上記他方の袋側面8のマチシート9が二つ折りの状態で配置され、本体シート7の側辺とマチシート9の側辺とをヒートシールした側辺シール部分10を備える。また、マチシート9を内側に配した状態で本体シート7の下辺に沿った部分がヒートシールされ、これによって本体シート7とマチシート9とからなる袋胴部2の下部に上記下辺シール部分15を備えている。(図6)
(Production method)
FIGS. 6 to 9 show the order of manufacturing the self-supporting packaging bag 1, and an example of manufacturing the self-supporting packaging bag 1 with a spout stopper filled with the contents will be described.
(A) First, the bag bodies 23 are taken out from the stocker one by one using a vacuum device or the like and sent to the next process. At this time, the bag body 23 has a flat shape, and the main body sheet 7 is folded in two, and the gusset sheet 9 on the other bag side surface 8 is arranged in a folded state inside the main body sheet 7. A side seal portion 10 in which the side of the sheet 7 and the side of the gusset sheet 9 are heat sealed is provided. Further, the portion along the lower side of the main body sheet 7 with the gusset sheet 9 disposed inside is heat-sealed, whereby the lower side sealing portion 15 is provided at the lower part of the bag body 2 composed of the main body sheet 7 and the gusset sheet 9. ing. (Fig. 6)

(b)つぎに袋体23での袋胴部2の上部における一方の袋側面となる側を斜めにカットし、この辺部を注出口栓の取り付け部分として形成する。(図6)
(c)注出口栓取付部分を形成した後に袋胴部2の内側に、一方の袋側面となる側にして袋底部形成手段24を挿入する(図4参照)。袋底部形成手段24は、袋胴部2の内側へ入り込むことで袋正面と袋背面とが対向方向に離間するようにこの袋胴部2の内側を広げ、この袋正面と袋背面とが離れるように開くことで上述のように下辺シール部分15の位置を中心として袋正面下部と袋背面下部とを平面方向に展開する。
(B) Next, the side which becomes one bag side surface in the upper part of the bag body part 2 in the bag body 23 is cut diagonally, and this side part is formed as an attachment part of the spout stopper. (Fig. 6)
(C) After forming the spout stopper mounting portion, the bag bottom portion forming means 24 is inserted into the bag body portion 2 so as to be the side surface of one bag (see FIG. 4). The bag bottom portion forming means 24 expands the inside of the bag body 2 so that the bag front surface and the bag back surface are separated in the opposite direction by entering the inside of the bag body portion 2, and the bag front surface and the bag back surface are separated. As described above, the bag front lower portion and the bag rear lower portion are developed in the plane direction with the position of the lower side seal portion 15 as the center.

上記袋正面と袋背面とが離れるように開くことで一方の袋側面が展開された状態でとなり、また、折り畳まれていたマチシート9も袋正面と袋背面との間の開きによって他方の袋側面として展開され、マチシート9の下部である他方の袋側面に繋がる袋胴部下部側のシート部分も平面方向に展開される状態となり、これによって袋底部14が形成される。(図6)   The bag front surface and the bag back surface are opened apart so that one bag side surface is unfolded, and the folded gusset sheet 9 is also opened between the bag front surface and the bag back surface. The sheet portion on the lower side of the bag body part connected to the other side of the bag that is the lower part of the gusset sheet 9 is also developed in the plane direction, whereby the bag bottom part 14 is formed. (Fig. 6)

上記袋底部形成手段24は袋正面と袋背面とを離間させる距離に応じた寸法形状を有する一つの柱状の形状を呈するものとしたり、対となる部材であって袋胴部2の内部に進み入るときにその対となる部材が正面と袋背面とを離間させる距離に応じるように離れる機構を有するものであってもよいものである。また、袋胴部2の内側へ袋底部形成手段24を進み入れる際に空気を吹き入れるようにすることも良好である。   The said bag bottom part formation means 24 shall exhibit the shape of one pillar which has a dimension shape according to the distance which separates a bag front surface and a bag back surface, or it is a member which becomes a pair, and advances to the inside of the bag trunk | drum 2. When entering, the paired member may have a mechanism that separates the front and back of the bag according to the distance separating them. It is also preferable to blow air when the bag bottom portion forming means 24 is advanced inside the bag body portion 2.

(d)上述したように袋底部形成手段24を挿入して袋底部2を展開させるとともに、袋胴部2での一方の袋側面側も展開させることで、袋正面下部と袋背面下部とに一方の袋側面下部とが重なった上記三角形状部分19が形成され、この三角形状部分19が袋底部14に連続した状態となる。そして、前記三角形状部分19をヒートシール25して薄板状にする。このヒートシールによって三角形状部分19の基端にシール辺22が形成され、このシール辺22が袋底部2の一方の袋側面側の一辺となり、またその一方の袋側面の下辺側となる。(図7) (D) As described above, the bag bottom portion forming means 24 is inserted to expand the bag bottom portion 2, and one bag side surface side of the bag body portion 2 is also expanded, so that the bag front lower portion and the bag rear lower portion are formed. The triangular portion 19 is formed so as to overlap the lower portion of one bag side surface, and the triangular portion 19 is continuous with the bag bottom portion 14. Then, the triangular portion 19 is heat-sealed 25 to form a thin plate. By this heat sealing, a seal side 22 is formed at the base end of the triangular portion 19, and this seal side 22 becomes one side of one bag side surface of the bag bottom portion 2 and also becomes the lower side of the one bag side surface. (Fig. 7)

(e)ヒートシール25にて薄板状にした三角形状部分19を冷却させた後、三角形状部分19やこの三角形状部分19を袋底部14に折り重ねときの対応箇所にホットメルトなどの接着剤を塗布26する。(図7) (E) After cooling the triangular portion 19 formed into a thin plate shape with the heat seal 25, the triangular portion 19 or an adhesive such as hot melt is applied to the corresponding portion when the triangular portion 19 is folded on the bag bottom portion 14. 26 is applied. (Fig. 7)

(f)上記接着剤の塗布を行なった後に三角形状部分19を、該三角形状部分19と袋底部14との境界(即ち、シール辺22)に袋胴部2の内側から上記袋底辺形成手段24を対応位置させた状態で前記境界から袋底部14の下面に折り重ねる。そして、三角形状部分19と袋底部14とを袋底部形成手段24と圧着手段27とで挟み込みをする。 (F) After applying the adhesive, the triangular portion 19 is connected to the boundary between the triangular portion 19 and the bag bottom 14 (that is, the seal side 22) from the inside of the bag body 2 to the bag bottom side forming means. In a state where 24 is in a corresponding position, it is folded from the boundary to the lower surface of the bag bottom 14. Then, the triangular portion 19 and the bag bottom portion 14 are sandwiched between the bag bottom portion forming means 24 and the pressure bonding means 27.

この挟み込みにより、接着剤を介在させた状態で三角形状部分19を袋底部14の下面に貼り合わせし圧着固定する。このようにして袋底部形成手段24をあてがった状態で三角形状部分19の折り重ねをすることで、袋底部14における一方の袋側面5側に袋正面と袋背面との対向方向に沿うシール辺22を有する三角形状部分19を、袋底部14に一体とする。(図7)   By this sandwiching, the triangular portion 19 is bonded to the lower surface of the bag bottom portion 14 with an adhesive interposed, and is fixed by pressure bonding. By folding the triangular portion 19 in a state where the bag bottom portion forming means 24 is applied in this manner, the seal side along the facing direction of the bag front surface and the bag back surface on the one bag side surface 5 side in the bag bottom portion 14. The triangular portion 19 having 22 is integrated with the bag bottom 14. (Fig. 7)

上記三角形状部分19は、袋底部14の下辺シール部分が位置している領域に重ねるようにして折り重ねており、三角形状部分19の下面については下辺シール部分を非表出となる。上記圧着手段27自体は三角形状部分19を押し付ける機構を有する機器としたり、或いは袋底部形成手段24からの圧力を受けて支える台座などとすることも可能である。   The triangular portion 19 is folded so as to overlap the region where the lower side seal portion of the bag bottom 14 is located, and the lower side seal portion is not exposed on the lower surface of the triangular portion 19. The crimping means 27 itself may be a device having a mechanism for pressing the triangular portion 19 or may be a pedestal that is supported by receiving pressure from the bag bottom portion forming means 24.

(g)上記三角形状部分19の圧着固定を行なった後に袋底部形成手段24を袋胴部2から抜く。なお、袋胴部2の下部を展開して袋底部14がよりスムーズに得られるようにするために、他方の袋側面側についても袋正面と袋背面との間を開くようにする手段を、袋底部形成手段24とともに挿入させるようにすることも可能である。(図8) (G) After crimping and fixing the triangular portion 19, the bag bottom portion forming means 24 is removed from the bag body 2. In order to expand the lower portion of the bag body 2 and obtain the bag bottom 14 more smoothly, means for opening the bag front side and the bag back side also on the other bag side surface, It is also possible to insert it together with the bag bottom forming means 24. (Fig. 8)

(h)袋底部形成手段24が退避した袋体23での注出口栓取付部分、即ち、袋胴部2の上部において傾斜してカットして得られた一方の袋側面での上辺の折り合わせとなる部分に注出口栓3をセットし溶着固定する。この注出口栓3の溶着固定を行なった後には、注出口栓3及び取付部分を冷却する。(図8) (H) Splicing of the top side of the side surface of one bag obtained by inclining and cutting at the top portion of the bag body 2 at the spout plug mounting portion in the bag body 23 with the bag bottom forming means 24 retracted The spout stopper 3 is set on the part to be welded and fixed. After the spout 3 is welded and fixed, the spout 3 and the mounting portion are cooled. (Fig. 8)

(i)以上までの時点では袋胴部2の上部における注出口栓取付部分以外の箇所は未シールとなっており、この未シールの辺部を充填口にして開いて、収容物の充填28を行なう。(図8) (I) At the time up to this point, the portions other than the spout stopper mounting portion in the upper part of the bag body 2 are unsealed. To do. (Fig. 8)

(j)充填後、袋胴部2の上部での注出口栓取付部分以外で充填口として未シールとされていた辺部をヒートシール29し、そのヒートシール箇所を冷却する。これによって収容物が充填された注出口栓付きの自立包装袋1が得られる。(図9) (J) After filling, heat seal 29 is performed on the side that has not been sealed as the filling port except for the spout attachment portion at the top of the bag body 2, and the heat-sealed portion is cooled. Thereby, the self-supporting packaging bag 1 with the spout stopper filled with the contents is obtained. (Fig. 9)

袋胴部2の上部でのヒートシール29において、充填口としていた部分の貼り合わせと同時に袋側辺シール部分10の上辺同士(マチシートの上辺同士)の接合も行なうようにしてもよい。   In the heat seal 29 at the upper part of the bag body 2, the upper sides of the bag side seal part 10 (upper sides of the gusset sheet) may be joined simultaneously with the bonding of the part that has been the filling port.

以上のように注出口栓の取付側となる一方の袋側面に連続する三角形状部分19を袋底部に折り重ねて圧着しているので、収容袋の自立性が頗る良好になり、そして、三角形状部分の折り重ねにより袋正面と袋背面との対向方向に沿う上記シール辺22を袋底部14の一辺側としているので、袋底部14が平面方向に広く展開されることとなり、袋底部側で効率よく収容物を収める空間を備えた自立包装袋1が得られる。   As described above, since the triangular portion 19 continuous on one side of the bag that is the attachment side of the spout stopper is folded and crimped to the bottom of the bag, the independence of the containing bag is improved and the triangular shape is improved. Since the sealing side 22 along the facing direction of the bag front surface and the bag back surface is set as one side of the bag bottom 14 by folding the shape portion, the bag bottom 14 is widely spread in the plane direction. The self-supporting packaging bag 1 having a space for efficiently storing the contents is obtained.

(他の実施の例)
上記実施の例では、段階(d)において得られる三角形状部分19に対しては、段階(e)にて下方から接着剤を塗布し、段階(f)にて袋底部14の下面に向けて折り返してから袋底部14に圧着して三角形状部分19を一体としているが、本発明はこの実施の例に限定されるものではない。
(Other implementation examples)
In the above embodiment, the triangular portion 19 obtained in step (d) is coated with adhesive from below in step (e) and directed toward the lower surface of the bag bottom 14 in step (f). The triangular portion 19 is integrated with the bag bottom 14 after being folded, but the present invention is not limited to this embodiment.

この他の例は、段階(d′)として、ヒートシールした三角形状部分19での基端の部分以外を切除30し、これによってシール辺22を袋正面と袋背面との対向方向に沿う細幅の帯状にするものである。(図10、図11)   In another example, as step (d ′), the heat-sealed triangular portion 19 other than the base end portion is cut away 30 so that the seal side 22 is narrowed along the opposing direction of the bag front surface and the bag back surface. It is a strip of width. (FIGS. 10 and 11)

この場合、段階(d′)の後は、接着剤の塗布と袋底部下面への三角形状部分の一体化の段階を省き、段階(g)の袋底部形成手段の退避に工程が移行し、それ以降は上述の例と同じとすることで、袋底部の一方の袋側面側にシール辺22を配した自立包装袋1が得られるものとなる。   In this case, after the step (d ′), the step of applying the adhesive and integrating the triangular portion on the bottom surface of the bag bottom is omitted, and the process shifts to the step of retracting the bag bottom forming means in the step (g). After that, the self-standing packaging bag 1 in which the seal side 22 is arranged on one bag side surface of the bag bottom is obtained by making the same as the above example.

そして、この例においても注出口栓の取付側となる一方の袋側面に連続する上記シール辺22を袋底部14の一辺側としているので、自立性が良好であるとともに、袋底部14が平面方向に広く展開されることとなり、袋底部側で効率よく収容物を収める空間を備えた自立包装袋1が得られる。   And also in this example, since the said seal | sticker side 22 continuing to one bag side used as the attachment side of a spout stopper is made into one side of the bag bottom part 14, while being independent, the bag bottom part 14 is planar direction. Thus, the self-supporting packaging bag 1 having a space for efficiently storing the contents on the bottom side of the bag can be obtained.

1…自立包装袋
2…袋胴部
3…注出口栓
4…袋正面
5…一方の袋側面
6…袋背面
7…本体シート
8…他方の袋側面
9…マチシート
10…側辺シール部分
12…袋上部
13…上辺シール部分
14…袋底部
15…下辺シール部分
16…袋底部での袋正面につながる袋胴部の下部側のシート部分(袋正面下部)
17…袋底部での袋背面につながる袋胴部の下部側のシート部分(袋背面下部)
18…袋底部での他方の袋側面につながる袋胴部の下部側のシート部分
19…三角形状部分
20…一方の袋側面につながる袋胴部の下部側のシート部分(一方の袋素側面下部)
22…シール辺
23…袋体
24…袋底部形成手段
25…ヒートシール
26…接着剤の塗布
27…圧着手段
28…収容物の充填
29…ヒートシール
30…切除
DESCRIPTION OF SYMBOLS 1 ... Self-supporting packaging bag 2 ... Bag trunk part 3 ... Outlet stopper 4 ... Bag front surface 5 ... One bag side surface 6 ... Bag back surface 7 ... Main body sheet 8 ... Other bag side surface 9 ... Machi sheet 10 ... Side seal part 12 ... Upper part of the bag 13 ... Sealing part on the upper side 14 ... Bottom part of the bag 15 ... Sealing part on the lower side 16 ... Sheet part on the lower side of the bag body leading to the front of the bag at the bottom of the bag (lower part of the front of the bag)
17 ... Sheet part of the lower part of the bag body connected to the back of the bag at the bottom of the bag (bottom of the back of the bag)
18 ... Sheet portion on the lower side of the bag body portion connected to the other bag side surface at the bag bottom portion 19 ... Triangular portion 20 ... Sheet portion on the lower side of the bag body portion connected to one bag side surface (lower side of one bag element side surface) )
DESCRIPTION OF SYMBOLS 22 ... Seal side 23 ... Bag body 24 ... Bag bottom part formation means 25 ... Heat seal 26 ... Application | coating of an adhesive agent 27 ... Crimping means 28 ... Filling of things 29 ... Heat seal 30 ... Excision

Claims (6)

袋正面から一方の袋側面を経て袋背面に亘って位置した一枚の本体シートと他方の袋側面に位置して一方の袋側面側に折り込み可能に設けられた一枚のマチシートとで袋胴部が形成されていて、この袋胴部における本体シートの側辺とマチシートの側辺とをヒートシールしてなる側辺シール部分を備えるとともに、前記袋胴部の下部には折り込んだ前記マチシートを間にして二つ折りにより相対した本体シートの下辺に沿ってヒートシールしてなる下辺シール部分を備えた袋体に、注出口栓を取り付け、収容物の充填を行ない、袋胴部の上部をヒートシールして、注出口栓付き自立包装袋を製造するにあたり、
注出口栓取付前の袋体の袋胴部における前記一方の袋側面となる側に袋底部形成手段を挿入して、この袋底部形成手段の袋胴部の下部への配置によって袋正面と袋背面との間を広げて一方の袋側面を展開するとともに、前記下辺シール部分を間にして袋正面下部と袋背面下部とを平面方向に展開した袋底部を形成し、
前記袋底部の形成で前記一方の袋側面下部が前記袋正面下部と前記袋背面下部とに重なってなる三角形状部分をヒートシールして、袋底部の一方の袋側面側に、前記ヒートシールされた三角形状部分の基端であって前記袋正面と袋背面との対向方向に沿うシール辺を形成し、
前記袋底部形成手段を袋胴部から退避させた後に、袋胴部の上部に上記注出口栓の取り付けを行なうことを特徴とする注出口栓付き自立包装袋の製造方法。
The body of the bag is composed of one main body sheet that is located from the front of the bag through one side of the bag and across the back of the bag, and one gusset that is positioned on the other side of the bag and is foldable on one side of the bag. A side seal portion formed by heat-sealing the side of the main body sheet and the side of the gusset sheet in the bag body, and the folded gusset sheet at the bottom of the bag body Attach a spout stopper to a bag body with a bottom seal part that is heat-sealed along the bottom side of the body sheet that is opposed by folding in half, filling the contents, and heating the upper part of the bag body When producing self-standing packaging bags with spout stoppers,
A bag bottom portion forming means is inserted into the side of the bag body portion of the bag body before the spout plug is attached, and the bag front portion and the bag are arranged by placing the bag bottom portion forming means at the lower portion of the bag body portion. While expanding between the back side and developing one side of the bag, forming the bottom of the bag that expands the lower front portion of the bag and the lower back portion of the bag in the plane direction with the lower seal portion in between,
In the formation of the bag bottom portion, the one bag side lower portion heat seals the triangular portion that overlaps the bag front lower portion and the bag rear lower portion, and the heat sealing is performed on one bag side surface side of the bag bottom portion. Forming a seal side along the opposing direction of the bag front and back of the bag at the base end of the triangular portion,
A method for producing a self-supporting packaging bag with a spout stopper, wherein the spout stopper is attached to an upper portion of the bag body after the bag bottom forming means is retracted from the bag body.
ヒートシールした三角形状部分での上記基端の部分以外を切除して、上記シール辺を袋正面と袋背面との対向方向に沿う細幅の帯状にする請求項1に記載の注出口栓付き自立包装袋の製造方法。   2. With a spout stopper according to claim 1, a portion other than the base end portion of the heat-sealed triangular portion is excised, and the seal side is formed in a narrow band shape along the facing direction of the bag front surface and the bag back surface. A method of manufacturing a self-supporting packaging bag. 上記三角形状部分を、該三角形状部分の上記基端に上記袋底部形成手段を対応位置させた状態で袋底部の下面側に折り重ねて、
前記三角形状部分とこの三角形状部分が重なる袋底部とを、袋胴部の内部に配置の前記袋底部形成手段と圧着手段とで挟み込んで、三角形状部分を袋底部の下面に圧着する請求項1に記載の注出口付自立包装袋の製造方法。
Folding the triangular portion on the lower surface side of the bag bottom with the bag bottom forming means corresponding to the base end of the triangular portion,
The triangular portion and the bag bottom portion where the triangular portion overlaps are sandwiched between the bag bottom portion forming means and the crimping means arranged inside the bag body portion, and the triangular portion is crimped to the lower surface of the bag bottom portion. The manufacturing method of the self-supporting packaging bag with a spout as described in 1.
袋底部の上記下辺シール部分が位置している部分への上記三角形状部分の折り重ねにより、三角形状部分の下面に下辺シール部分を非表出にする請求項3に記載の注出口栓付き自立包装袋の製造方法。   The self-standing with a spout stopper according to claim 3, wherein the lower seal part is not exposed on the lower surface of the triangular part by folding the triangular part on the part where the lower seal part is located at the bottom of the bag. A method of manufacturing a packaging bag. 一方の袋側面の上辺となる部分に注出口栓を取り付ける請求項1から4の何れか一項に記載の注出口栓付き自立包装袋の製造方法。   The manufacturing method of the self-supporting packaging bag with a spout stopper as described in any one of Claim 1 to 4 which attaches a spout stopper to the part used as the upper side of one bag side surface. 注出口栓取付前の袋体が扁平とされている状態での側辺シール部分に対して取っ手を設ける請求項1から5の何れか一項に記載の注出口栓付き自立包装袋の製造方法。   The manufacturing method of the self-supporting packaging bag with a spout stopper according to any one of claims 1 to 5, wherein a handle is provided on a side seal portion in a state where the bag body before the spout stopper is attached is flat. .
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