JP6907532B2

JP6907532B2 - Pouch with spout

Info

Publication number: JP6907532B2
Application number: JP2016254416A
Authority: JP
Inventors: 和佳子仙頭
Original assignee: Dai Nippon Printing Co Ltd
Current assignee: Dai Nippon Printing Co Ltd
Priority date: 2016-12-27
Filing date: 2016-12-27
Publication date: 2021-07-21
Anticipated expiration: 2036-12-27
Also published as: JP2018104058A

Description

本発明は、注出口を備えたパウチに関する。 The present invention relates to a pouch having a spout.

従来、２枚の側壁フィルムを重ね合わせた袋であって、注ぎ口における各側壁フィルムに、注出方向に向けて、対向しない非対称の位置に補強線を各々形成してあり、注ぎ口の為の変形加工が容易で、且つ閉塞を生じることの無いよう工夫が施された袋が知られている（特許文献１参照）。 Conventionally, it is a bag in which two side wall films are overlapped, and each side wall film at the spout is formed with reinforcing lines at asymmetrical positions that do not face each other in the pouring direction. There is known a bag that is easy to deform and has been devised so as not to cause blockage (see Patent Document 1).

特開特開２０００−１２８１９２号公報Japanese Unexamined Patent Publication No. 2000-128192

しかしながら、特許文献１に記載の袋では、閉塞を生じることなく安定した方向へ内容物（液体）を注出することについて、十分にその役割を果たしていないという問題がある。 However, the bag described in Patent Document 1 has a problem that it does not sufficiently play a role in pouring out the contents (liquid) in a stable direction without causing blockage.

そこで、本発明は、注出口が閉塞することを抑制することができ、且つ、注出性に優れた注出口を備えたパウチを提供することを課題とする。 Therefore, it is an object of the present invention to provide a pouch having a spout that can suppress clogging of the spout and has excellent pourability.

上記課題を解決するため、本発明は、
表面と裏面を有し、内容物を収容するための本体部と、本体部と一体の注出口部を備えたパウチであって、
表側の面に表側凸部を有し、裏側の面に裏側凸部を有し、
注出口部には開封手段が設けられており、
表側凸部は、本体部に位置する直線状の表側凸部第１部分と、前記表側凸部第１部分に連設され注出口部の開封手段近傍まで延びる直線状の表側凸部第２部分と、を含み、前記表側凸部第１部分と前記表側凸部第２部分は異なる方向に延びており、
裏側凸部は、本体部に位置する直線状の裏側凸部第３部分と、前記裏側凸部第３部分に連設され注出口部の開封手段近傍まで延びる直線状の裏側凸部第４部分と、を含み、前記裏側凸部第３部分と前記裏側凸部第４部分は異なる方向に延びており、
前記表側凸部第２部分および前記裏側凸部第４部分は注出口部の二等分線に沿って延びており、
正面視において、前記表側凸部第１部分と前記裏側凸部第３部分は交差するように配置されている、ことを特徴とするパウチを提供する。 In order to solve the above problems, the present invention
A pouch that has a front surface and a back surface, and has a main body for accommodating the contents and an inlet / outlet integrated with the main body.
It has a front convex portion on the front surface and a back convex portion on the back surface.
An opening means is provided at the spout.
The front convex portion is a linear front convex portion first portion located in the main body portion and a linear front convex portion second portion that is connected to the front convex portion first portion and extends to the vicinity of the opening means of the spout portion. The first portion of the front convex portion and the second portion of the front convex portion extend in different directions.
The back-side convex portion is a linear back-side convex portion third portion located in the main body portion and a linear back-side convex portion fourth portion that is connected to the back-side convex portion third portion and extends to the vicinity of the opening means of the spout portion. And, the third portion of the back side convex portion and the fourth portion of the back side convex portion extend in different directions.
The second convex portion on the front side and the fourth convex portion on the back side extend along the bisector of the spout portion.
Provided is a pouch characterized in that the first portion of the front convex portion and the third portion of the back convex portion are arranged so as to intersect each other in a front view.

また、本発明は、
前記注出口部は、注出口部シール部を備え、前記注出口部シール部は、前記注出口部の二等分線を挟んで注出口部シール部第１部分と注出口部シール部第２部分に区画され、
前記表側凸部第２部分は、前記注出口部の二等分線より前記注出口部シール部第２部分寄りの位置に設けられ、前記表側凸部第１部分は前記注出口部シール部第２部分に向かって延びるように設けられ、前記裏側凸部第４部分は、前記注出口部の二等分線より前記注出口部シール部第１部分寄りの位置に設けられ、前記裏側凸部第３部分は前記注出口部シール部第１部分に向かって延びるように設けられるか、または、
前記表側凸部第２部分は、前記注出口部の二等分線より前記注出口部シール部第１部分寄りの位置に設けられ、前記表側凸部第１部分は前記注出口部シール部の第１部分に向かって延びるように設けられ、前記裏側凸部第４部分は、前記注出口部の二等分線より前記注出口部シール部第２部分寄りの位置に設けられ、前記裏側凸部第３部分は前記注出口部シール部第２部分に向かって延びるように設けられていてもよい。 In addition, the present invention
The spout portion includes a spout portion seal portion, and the spout portion seal portion includes a spout portion seal portion first portion and a spout portion seal portion second with a bisector of the spout portion interposed therebetween. Divided into parts,
The front side convex portion second portion is provided at a position closer to the spout portion seal portion second portion than the bisector of the spout portion, and the front side convex portion first portion is the spout portion seal portion first. The fourth portion of the back side convex portion is provided so as to extend toward the two portions, and the fourth portion of the back side convex portion is provided at a position closer to the first portion of the spout portion seal portion than the bisector of the spout portion, and the back side convex portion. The third portion is provided so as to extend toward the first portion of the spout portion seal portion, or
The second portion of the front convex portion is provided at a position closer to the first portion of the spout portion seal portion than the bisector of the spout portion, and the first portion of the front convex portion is of the spout portion seal portion. The fourth portion of the back side convex portion is provided so as to extend toward the first portion, and is provided at a position closer to the second portion of the spout portion seal portion than the bisector of the spout portion, and the back side convex portion is provided. The third portion may be provided so as to extend toward the second portion of the spout portion seal portion.

また、本発明は、前記表側凸部第１部分および前記表側凸部第３部分は、注出口部の基部の一方の端部と他方の端部を結ぶ線の中間点を中心とした半径３０ｍｍの円の内部に設けられていてもよい。 Further, in the present invention, the first portion of the front convex portion and the third portion of the front convex portion have a radius of 30 mm centered on the midpoint of the line connecting one end and the other end of the base of the spout. It may be provided inside the circle of.

本発明によれば、注出口が閉塞することを抑制することができ、且つ、注出性に優れる。 According to the present invention, it is possible to prevent the spout from being blocked and the pouring property is excellent.

本発明の一実施形態に係る注出口を備えたパウチを示す図である。It is a figure which shows the pouch provided with the spout which concerns on one Embodiment of this invention. 注出口を備えたパウチの注出口部拡大図および断面図である。It is an enlarged view and the cross-sectional view of the spout part of the pouch provided with the spout. ノズル基部の寸法の説明図である。It is explanatory drawing of the dimension of the nozzle base. 表側凸部第１部分と表側凸部第２部分の成す角度の説明図である。It is explanatory drawing of the angle formed by the front side convex part 1st part and the front side convex part 2nd part. 液体がある状態の注出口部のＡ−Ａ線断面図である。It is a cross-sectional view taken along the line AA of the spout part with a liquid. 比較例のパウチの正面図である。It is a front view of the pouch of the comparative example. 実施例と比較例のパウチに水を入れ、注出口部を真下に向けた状態を示す正面図である。It is a front view which shows the state which put water in the pouch of the Example and the comparative example, and the spout part is directed straight down. 実施例と比較例のパウチに水を入れ、注出口部を真下に向けた状態を示す側面図である。It is a side view which shows the state which put water in the pouch of the Example and the comparative example, and the spout part is directed straight down. 表側凸部および裏側凸部の変形例を示す断面図である。It is sectional drawing which shows the modification of the front side convex part and the back side convex part.

以下、本発明の好適な実施形態について、図面を参照して詳細に説明する。
＜実施形態＞
図１は、本発明の一実施形態に係る注出口を備えたパウチを示す正面図である。図２は、パウチの注出口部拡大図および断面図である。図２（ａ）は正面図、図２（ｂ）は図２（ａ）のＡ−Ａ線断面図、である。図１、図２（ａ）は、正面側から見たものであるが、説明の便宜上、裏面側に存在する裏側凸部１０の第３部分１０ａと第４部分１０ｂを破線で示している。本発明のパウチは、注出口部２を開封した後、注出口部２をボトルの口部に差し込んで使用するのに好適である。実施形態のパウチは、注出口部２は、本体部１と一体に形成されている。 Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings.
<Embodiment>
FIG. 1 is a front view showing a pouch provided with a spout according to an embodiment of the present invention. FIG. 2 is an enlarged view and a cross-sectional view of the spout portion of the pouch. 2 (a) is a front view, and FIG. 2 (b) is a cross-sectional view taken along the line AA of FIG. 2 (a). 1 and 2 (a) are viewed from the front side, but for convenience of explanation, the third portion 10a and the fourth portion 10b of the back side convex portion 10 existing on the back surface side are shown by broken lines. The pouch of the present invention is suitable for use by inserting the spout portion 2 into the mouth portion of the bottle after opening the spout portion 2. In the pouch of the embodiment, the spout portion 2 is formed integrally with the main body portion 1.

（各フィルムの説明）
実施形態のパウチは、表面フィルム１７と、裏面フィルム１８と、長方形状の底面フィルムの３枚のフィルムで構成されている。表面フィルム１７と裏面フィルム１８においては、第１切欠部１２と第２切欠部１３となる切り欠きが設けられている。実施形態のパウチは、長方形の表面フィルム１７と表面フィルム１７と同一形状の裏面フィルム１８とをシールした後、第１切欠部と第２切欠部が形成されている。第１切欠部１２はパウチの上部の側縁を切り欠くように形成されている。第２切欠部１３はパウチの上縁を切り欠くように形成されている。図１、図２においては、第１切欠部１２の頂点として符号１２ａ、第２切欠部１３の頂点として符号１３ａを付している。底面フィルムは、２つ折りされており、折込部１５を境界にして第１部分と第２部分とに区分される。底面フィルムには、側縁を切り欠くように４つの半円弧状の側縁切欠きが設けられており、側縁切欠きは２つ折りしたときに対応する位置に設けられている。この側縁切欠きを介して、後述の第２底部シール部５ｂが形成される。なお、側縁切欠きの代わりに孔にしてもよい。 (Explanation of each film)
The pouch of the embodiment is composed of three films, a front surface film 17, a back surface film 18, and a rectangular bottom film. The front surface film 17 and the back surface film 18 are provided with notches that serve as a first notch portion 12 and a second notch portion 13. In the pouch of the embodiment, a first cutout portion and a second cutout portion are formed after sealing the rectangular front surface film 17 and the back surface film 18 having the same shape as the front surface film 17. The first notch 12 is formed so as to cut out the side edge of the upper part of the pouch. The second notch 13 is formed so as to cut out the upper edge of the pouch. In FIGS. 1 and 2, reference numeral 12a is attached as the apex of the first notch portion 12, and reference numeral 13a is attached as the apex of the second notch portion 13. The bottom film is folded in two, and is divided into a first portion and a second portion with the folded portion 15 as a boundary. The bottom film is provided with four semicircular arc-shaped side edge notches so as to cut out the side edges, and the side edge notches are provided at positions corresponding to the two folds. Through this side edge notch, a second bottom seal portion 5b, which will be described later, is formed. A hole may be used instead of the side edge notch.

（各シール部の説明）
図１に示すように、第１側部シール部４ａと、第２側部シール部４ｂと、底部シール部５と、注出口部シール部８と、第１肩部シール部１９と、第２肩部シール部２０と、を備え、上部に開口部１４が形成されている。図２（ａ）に示すように、注出口部シール部８は、注出口部の二等分線１６を挟んで注出口部シール部第１部分８ａと注出口部シール部第２部分８ｂに区画されている。図１において、内容物を充填後封止されるためにシールされる箇所が、上部シール予定部として符号３で示されている。第１肩部シール部１９は、注出口部シール部第１部分８ａと第２側部シール部４ｂに跨るように形成され、第２肩部シール部２０は、注出口部シール部第２部分８ｂと上部シール予定部３に跨るように形成されている。第１側部シール部４ａは、表面フィルム１７と裏面フィルム１８がシールされたものであり、折込部１５からパウチの上縁に亘って形成されている。第２側部シール部４ｂは、折込部１５から第１肩部シール部１９との境界に亘って形成されている。第１側部シール部４ａ、第２側部シール部４ｂは、２ｍｍ以上１５ｍｍ以下の幅で形成されることが好ましく、４ｍｍ以上１０ｍｍ以下の幅で形成されることがより好ましい。底部シール部５は、第１底部シール部５ａと、第２底部シール部５ｂで構成されている。第１底部シール部５ａは、表面フィルム１７と底面フィルム、および、裏面フィルム１８と底面フィルムがシールされたものである。第２底部シール部５ｂは、表面フィルム１７と裏面フィルム１８がシールされたものである。第２底部シール部５ｂは、底面フィルムに形成された側縁切欠きの形状となっている。 (Explanation of each seal)
As shown in FIG. 1, the first side seal portion 4a, the second side seal portion 4b, the bottom seal portion 5, the spout portion seal portion 8, the first shoulder portion seal portion 19, and the second A shoulder seal portion 20 is provided, and an opening 14 is formed in the upper portion. As shown in FIG. 2A, the spout portion seal portion 8 is formed on the spout portion seal portion 1st portion 8a and the spout portion seal portion 2nd portion 8b with the bisector 16 of the spout portion interposed therebetween. It is partitioned. In FIG. 1, a portion to be sealed to be sealed after filling the contents is indicated by reference numeral 3 as a planned upper seal portion. The first shoulder portion seal portion 19 is formed so as to straddle the first portion 8a of the spout portion seal portion and the second side portion seal portion 4b, and the second shoulder portion seal portion 20 is formed so as to straddle the spout portion seal portion second portion. It is formed so as to straddle 8b and the planned upper seal portion 3. The first side sealing portion 4a is formed by sealing the front surface film 17 and the back surface film 18 from the folding portion 15 to the upper edge of the pouch. The second side seal portion 4b is formed over the boundary between the folded portion 15 and the first shoulder seal portion 19. The first side seal portion 4a and the second side seal portion 4b are preferably formed with a width of 2 mm or more and 15 mm or less, and more preferably 4 mm or more and 10 mm or less. The bottom seal portion 5 is composed of a first bottom seal portion 5a and a second bottom seal portion 5b. The first bottom sealing portion 5a is formed by sealing the front surface film 17 and the bottom surface film, and the back surface film 18 and the bottom surface film. The second bottom sealing portion 5b is formed by sealing the front surface film 17 and the back surface film 18. The second bottom seal portion 5b has the shape of a side edge notch formed in the bottom film.

第１肩部シール部１９の内縁は注出口部シール部第１部分８ａの内縁および第２側部シール部４ｂの内縁と異なる方向に延びている。第２肩部シール部２０の内縁は注出口部シール部第２部分８ｂの内縁および上部シール予定部３の内縁と異なる方向に延びている。注出口部の基部７は、第１肩部シール部１９の内縁と注出口部シール部第１部分８ａの内縁との連設点７ａと、第２肩部シール部２０の内縁と注出口部シール部第２部分８ｂの内縁との連設点７ｂと、を結ぶ線上に位置する。したがって、連設点７ａ、連設点７ｂは基部７の端部となる。 The inner edge of the first shoulder seal portion 19 extends in a direction different from the inner edge of the first portion 8a of the spout portion seal portion and the inner edge of the second side seal portion 4b. The inner edge of the second shoulder seal portion 20 extends in a direction different from the inner edge of the second portion 8b of the spout portion seal portion and the inner edge of the upper seal planned portion 3. The base 7 of the spout portion includes a continuous point 7a between the inner edge of the first shoulder seal portion 19 and the inner edge of the first spout seal portion 8a, and the inner edge of the second shoulder seal portion 20 and the spout portion. It is located on a line connecting the continuous point 7b with the inner edge of the second portion 8b of the seal portion. Therefore, the continuous connection point 7a and the continuous connection point 7b are the end portions of the base portion 7.

注出口部シール部８は、表面フィルム１７と裏面フィルム１８がシールされたものであり、注出口部シール部第１部分８ａと、注出口部シール部第２部分８ｂからなる。注出口部シール部第１部分８ａは注出口部２の外縁に沿って、第１肩部シール部１９との境界から、上部に亘って形成されている。注出口部シール部第２部分８ｂは注出口部２の外縁に沿って、第２肩部シール部２０との境界から、上部に渡って形成されている。注出口部２においては、開封手段１１より外縁側（注出口部の先端部６側）に摘み部２ａが形成されている。摘み部２ａは、注出口部シール部８において、他の部分よりもシール幅が広い部分を含んでいる。この摘み部２ａを撮んで、開封手段１１から切り取ることにより、撮み部２ａが注出口部２から分離され、注出口部２に注出のための開口が得られる。 The spout portion seal portion 8 is formed by sealing the front surface film 17 and the back surface film 18, and includes a spout portion seal portion first portion 8a and a spout portion seal portion second portion 8b. The first portion 8a of the spout portion seal portion is formed along the outer edge of the spout portion 2 from the boundary with the first shoulder portion seal portion 19 to the upper part. The spout portion seal portion second portion 8b is formed along the outer edge of the spout portion 2 from the boundary with the second shoulder portion seal portion 20 and extends upward. In the spout portion 2, a knob portion 2a is formed on the outer edge side (the tip portion 6 side of the spout portion) from the opening means 11. The knob portion 2a includes a portion of the spout portion seal portion 8 having a wider seal width than the other portions. By taking a picture of the picking part 2a and cutting it from the opening means 11, the taking part 2a is separated from the spout part 2, and an opening for pouring is obtained in the spout part 2.

（底部ガセット部の説明）
底面フィルムは、折込部１５により第１部分と第２部分に区分され、底面フィルムの第１部分と、表面フィルムの底面フィルムの第１部分に対応する部分と、で第１ひだ部が形成され、底面フィルムの第２部分と、裏面フィルムの底面フィルムの第２部分に対応する部分と、で第２ひだ部が形成されている。そして、第１ひだ部と第２ひだ部とで、底部ガセット部が形成されている。 (Explanation of bottom gusset)
The bottom film is divided into a first portion and a second portion by a folding portion 15, and a first fold portion is formed by a first portion of the bottom film and a portion corresponding to the first portion of the bottom film of the surface film. The second fold portion is formed by the second portion of the bottom film and the portion corresponding to the second portion of the bottom film of the back surface film. A bottom gusset portion is formed by the first fold portion and the second fold portion.

（収容部の説明）
開口部１４を介して内容物が収容された後、図１において３と示されている上部シール予定部に上部シール部が形成され、パウチが封止される。本体部1と注出口部2に亘る収容部は、第１側部シール部４ａ、第２側部シール部４ｂの内縁と、第１底部シール部５ａの内縁と、上部シール部の内縁と、注出口部シール部第１部分８ａの内縁と、注出口部シール部第２部分８ｂの内縁と、第１肩部シール部１９の内縁と、第２肩部シール部２０の内縁と、で画成されている。 (Explanation of accommodation)
After the contents are accommodated through the opening 14, an upper seal portion is formed at the planned upper seal portion shown as 3 in FIG. 1, and the pouch is sealed. The accommodating portion extending over the main body portion 1 and the spout portion 2 includes the inner edge of the first side seal portion 4a and the second side seal portion 4b, the inner edge of the first bottom seal portion 5a, and the inner edge of the upper seal portion. The inner edge of the first portion 8a of the spout portion seal portion, the inner edge of the second portion 8b of the spout portion seal portion, the inner edge of the first shoulder portion seal portion 19, and the inner edge of the second shoulder portion seal portion 20 are drawn. It is made.

（内容物）
液体洗剤やシャンプーなど、ボトルへ詰め替えられる液体に特に適している。 (Contents)
Especially suitable for liquids that can be refilled into bottles, such as liquid detergents and shampoos.

（フィルムの構成）
表面・裏面・底面は、積層フィルムにより構成することができる。積層フィルムは、少なくとも、外側の基材層と内側のシーラント層を含む。シーラント層は、パウチの最内面を構成する層である。基材層は、少なくとも１軸延伸された延伸フィルムからなる。基材層を構成する材料としては、例えば、ナイロン（Ｎｙ）などのポリアミドや、ポリエチレンテレフタレート（ＰＥＴ）を用いることができる。 (Film composition)
The front surface, the back surface, and the bottom surface can be formed of a laminated film. The laminated film includes at least an outer substrate layer and an inner sealant layer. The sealant layer is a layer that constitutes the innermost surface of the pouch. The base material layer consists of a stretched film that has been stretched at least uniaxially. As the material constituting the base material layer, for example, polyamide such as nylon (Ny) or polyethylene terephthalate (PET) can be used.

基材層の厚みは、用いられる材料に応じて適宜設定される。例えば、基材層を構成する材料としてナイロンが用いられる場合、基材層の厚みは１５〜２５μｍの範囲内となっている。また、基材層を構成する材料としてポリエチレンテレフタレートが用いられる場合、基材層の厚みは１２〜２５μｍの範囲内となっている。なお、基材層は、複数のフィルムを組み合わせることにより構成されていてもよい。例えば、ナイロンフィルムとポリエチレンテレフタレートフィルムとを組み合わせることによって基材層が構成されていてもよい。 The thickness of the base material layer is appropriately set according to the material used. For example, when nylon is used as the material constituting the base material layer, the thickness of the base material layer is in the range of 15 to 25 μm. When polyethylene terephthalate is used as the material constituting the base material layer, the thickness of the base material layer is in the range of 12 to 25 μm. The base material layer may be formed by combining a plurality of films. For example, the base material layer may be formed by combining a nylon film and a polyethylene terephthalate film.

次にシーラント層について説明する。シーラント層は、パウチの表面および裏面を互いにシールするためのシーラントとなる層であり、熱可塑性樹脂を含む。シーラント層を構成する材料としては、例えば、ポリエチレン（ＰＥ）などを用いることができる。ここでポリエチレンは、エチレンの単独重合体だけでなく、エチレンとα−オレフィン単量体との共重合体など、一般にポリエチレンとして認識される共重合体も含むものである。また、シーラント層において用いられるポリエチレンとしては、低密度ポリエチレン（ＬＤＰＥ）、直鎖状低密度ポリエチレン（ＬＬＤＰＥ）などを好適に用いることができる。なお、シーラント層は、複数備えていてもよい。 Next, the sealant layer will be described. The sealant layer is a layer that serves as a sealant for sealing the front surface and the back surface of the pouch with each other, and contains a thermoplastic resin. As the material constituting the sealant layer, for example, polyethylene (PE) or the like can be used. Here, polyethylene includes not only a homopolymer of ethylene but also a copolymer generally recognized as polyethylene, such as a copolymer of ethylene and an α-olefin monomer. Further, as the polyethylene used in the sealant layer, low density polyethylene (LDPE), linear low density polyethylene (LLDPE) and the like can be preferably used. A plurality of sealant layers may be provided.

直鎖状低密度ポリエチレンとしては、例えば、メタセロン直鎖状低密度ポリエチレン（ｍ−ＬＬＤＰＥ）を用いることができる。メタセロン直鎖状低密度ポリエチレンとは、メタロセン触媒を使用して重合したポリマーのことであり、ブロッキングしにくい、すべり性がよい、ポリエチレン臭が少ない、食品への溶出成分が少ない、ＥＶＡ１０〜１５％並の超低温ヒートシール性フィルムが製造できる、耐寒性、耐衝撃性に優れている、ホットタック性に優れている、夾雑物シール性がよい、揉みに対する耐ピンホール性がよい、添加剤が少ないので透明性に優れたフィルムの製造が可能である、耐圧強度・耐熱性がある、などの特徴を有している。 As the linear low-density polyethylene, for example, metallocene linear low-density polyethylene (m-LLDPE) can be used. Metatheron linear low-density polyethylene is a polymer polymerized using a metallocene catalyst, which is difficult to block, has good slipperiness, has a low polyethylene odor, has a low elution component into food, and has an EVA of 10 to 15%. Can produce average ultra-low temperature heat sealable film, has excellent cold resistance and impact resistance, has excellent hot tack resistance, has good contaminant sealability, has good pinhole resistance against rubbing, and has few additives. Therefore, it has features such as being able to produce a film having excellent transparency and having pressure resistance and heat resistance.

シーラント層の厚みは、用いられる材料に応じて適宜設定される。例えば、シーラント層を構成する材料としてポリエチレンが用いられる場合、シーラント層の厚みは、好ましくは２０〜２００μｍの範囲内となっており、より好ましくは３０〜１３０μｍの範囲内となっている。 The thickness of the sealant layer is appropriately set according to the material used. For example, when polyethylene is used as a material for forming the sealant layer, the thickness of the sealant layer is preferably in the range of 20 to 200 μm, more preferably in the range of 30 to 130 μm.

なお図示はしないが、積層フィルムは、機能層をさらに含んでいてもよい。機能層としては、例えば、気体や液体に対する積層フィルムのバリア性を高めるためのバリア層が挙げられる。バリア層の具体的な構成は特には限定されないが、例えば、蒸着によって形成されるアルミニウムなどの無機物や酸化アルミニウムや酸化珪素などの無機酸化物を含む蒸着層や、アルミニウムなどの金属箔層や、コーティングによって形成されるエチレン−ビニルアルコール共重合体層、具体的にはエバール（ＥＶＯＨ）などを挙げることができる。機能層は、基材層の表面に形成されていてもよく、若しくは、基材層とシーラント層の間に形成されていてもよい。 Although not shown, the laminated film may further include a functional layer. Examples of the functional layer include a barrier layer for enhancing the barrier property of the laminated film against gas or liquid. The specific configuration of the barrier layer is not particularly limited, but for example, a vapor deposition layer containing an inorganic substance such as aluminum formed by vapor deposition, an inorganic oxide such as aluminum oxide or silicon oxide, a metal foil layer such as aluminum, or a metal foil layer such as aluminum. Examples thereof include an ethylene-vinyl alcohol copolymer layer formed by the coating, specifically, EVA (EVOH) and the like. The functional layer may be formed on the surface of the base material layer, or may be formed between the base material layer and the sealant layer.

基材層、シーラント層、機能層を積層させるための方法が特に限られることはなく、公知の積層方法が適宜用いられる。例えば、接着剤を用いて貼り合わせる、いわゆるドライラミネート法が用いられてもよいし、押出しラミネート法が用いられてもよい。 The method for laminating the base material layer, the sealant layer, and the functional layer is not particularly limited, and a known laminating method is appropriately used. For example, a so-called dry laminating method of laminating with an adhesive may be used, or an extruded laminating method may be used.

（本体部の説明）
本体部１は、主に内容物を収容するための部分である。内容物としては、例えば、液体が挙げられる。本体部１は、第１肩部シール部１９、第２肩部シール部２０、第１側部シール部４ａ、第２側部シール部４ｂ、底部シール部５、上部シール予定部３を備えている。上部は、パウチに液体が充填される際に開口される開口部１４となっている。パウチに液体が充填された後、上部は、ヒートシールなどによって封止される。図１において、液体が充填された後にヒートシールされる部分が上部シール予定部として符号３で示されている。 (Explanation of the main body)
The main body 1 is a part mainly for accommodating the contents. Examples of the contents include liquids. The main body 1 includes a first shoulder seal portion 19, a second shoulder seal portion 20, a first side seal portion 4a, a second side seal portion 4b, a bottom seal portion 5, and an upper seal planned portion 3. There is. The upper portion is an opening 14 that is opened when the pouch is filled with a liquid. After the pouch is filled with liquid, the upper part is sealed by a heat seal or the like. In FIG. 1, a portion to be heat-sealed after being filled with a liquid is indicated by reference numeral 3 as a planned upper seal portion.

（注出口部の説明）
注出口部２は先細り形状である。すなわち、本体部１から注出口部２に向かって、徐々に、その幅が小さくなるように形成されている。また、注出口部２の両側に切欠部が設けられている。注出口部２が細口の場合、一方の第１切欠部１２の頂点１２ａと、他方の第２切欠部１３の頂点１３ａと、を結んだ線の長さは３５ｍｍ以下である。また、注出口部２が細口の場合、注出口部２の開封手段１１と注出口部シール部第１部分８ａの外縁の交点と、開封手段１１と注出口部シール部第２部分８ｂの外縁の交点と、を結んだ線Ｍ（図１、図２において破線で示す。）の長さは２２ｍｍ以下である。本発明のパウチは、注出口部２が細口の場合に特に好適である。 (Explanation of spout)
The spout portion 2 has a tapered shape. That is, the width is gradually reduced from the main body 1 to the spout 2. In addition, notches are provided on both sides of the spout portion 2. When the spout portion 2 has a narrow mouth, the length of the line connecting the apex 12a of one first notch portion 12 and the apex 13a of the other second notch portion 13 is 35 mm or less. When the spout portion 2 has a narrow mouth, the intersection of the opening means 11 of the spout portion 2 and the outer edge of the spout portion seal portion first portion 8a, and the outer edge of the opening means 11 and the spout portion seal portion second portion 8b. The length of the line M (indicated by the broken line in FIGS. 1 and 2) connecting the intersections of the above is 22 mm or less. The pouch of the present invention is particularly suitable when the spout portion 2 has a narrow mouth.

注出口部２には開封手段１１が設けられている。本実施形態では、開封手段１１はハーフカット線である。開封手段１１は図１、図２において破線で示してある。ハーフカット線は、連続的に延びる線であってもよいし、断続的に延びる線であってもよい。また、開封開始手段に加えて、ノッチを形成してもよい。ノッチとしては、切り込み、切り欠き、貫通孔または非貫通孔からなる複数の傷痕群などが挙げられる。 The spout portion 2 is provided with an opening means 11. In the present embodiment, the opening means 11 is a half-cut line. The opening means 11 is shown by a broken line in FIGS. 1 and 2. The half-cut line may be a continuously extending line or an intermittently extending line. Further, a notch may be formed in addition to the opening starting means. Examples of the notch include a group of scars consisting of a notch, a notch, a through hole or a non-through hole, and the like.

図３は、注出口部２の基部７の寸法の説明図である。注出口部２の断面の直径（内径）は、収容部の容量や、内容物の種類により異なるが、２０ｍｍ〜２５ｍｍ程度確保したいことが一般的である。例えば、注出口部２の断面の直径を２２ｍｍ確保する場合、注出口部２の断面の円周は６９．１２ｍｍ、約７０ｍｍ確保する必要がある。フィルムの厚みを無視すると、７０ｍｍの半分である３５ｍｍを基部７の長さとする必要がある。そのため、注出口部２の基部７の寸法Ｌ（基部の端部７ａから端部７ｂまでの長さ）としては、２５ｍｍ〜３５ｍｍとすることが好ましい。 FIG. 3 is an explanatory view of the dimensions of the base portion 7 of the spout portion 2. The diameter (inner diameter) of the cross section of the spout portion 2 varies depending on the capacity of the accommodating portion and the type of contents, but it is generally desired to secure about 20 mm to 25 mm. For example, when securing the diameter of the cross section of the spout portion 2 of 22 mm, it is necessary to secure the circumference of the cross section of the spout portion 2 of 69.12 mm, which is about 70 mm. Ignoring the thickness of the film, the length of the base 7 needs to be 35 mm, which is half of 70 mm. Therefore, the dimension L (the length from the end portion 7a to the end portion 7b of the base portion) of the base portion 7 of the spout portion 2 is preferably 25 mm to 35 mm.

（凸部の説明）
図１、図２に示すように、パウチは、表側の面に表側凸部９を有し、裏側の面に裏側凸部１０を有している。表側凸部９は、図２（ｂ）に示すように、表面フィルム１７の外面および内面ともに、表面フィルムの内面側から外面側に向かって突出するように形成されている。表側凸部９は、本体部１に位置する直線状の表側凸部第１部分９ａと、表側凸部第１部分９ａに連設され注出口部の開封手段近傍まで延びる直線状の表側凸部第２部分９ｂと、を含み、表側凸部第１部分９ａと表側凸部第２部分９ｂは異なる方向に延びている。実施形態において、表側凸部第２部分９ｂは開封手段１１を超えて注出口部の先端部６側まで延びている。 (Explanation of convex part)
As shown in FIGS. 1 and 2, the pouch has a front convex portion 9 on the front surface and a back convex portion 10 on the back surface. As shown in FIG. 2B, the front convex portion 9 is formed so that both the outer surface and the inner surface of the surface film 17 project from the inner surface side to the outer surface side of the surface film. The front convex portion 9 is a linear front convex portion 9a located in the main body portion 1 and is connected to the front convex portion first portion 9a and extends to the vicinity of the opening means of the spout portion. The second portion 9b is included, and the front convex portion first portion 9a and the front convex portion second portion 9b extend in different directions. In the embodiment, the front convex portion second portion 9b extends beyond the opening means 11 to the tip portion 6 side of the spout portion.

図４は、表側凸部第１部分９ａと表側凸部第２部分９ｂの成す角度の説明図である。図４においては、表側凸部第１部分９ａに平行な直線、表側凸部第２部分９ｂに平行な直線を一点鎖線で示し、両直線のなす角度をθとして示している。表側凸部第１部分９ａと表側凸部第２部分９ｂの成す角度は、図４に示す角度θに等しい。表側凸部第１部分９ａと表側凸部第２部分９ｂの成す角度θは９０°より大きく、θ＝１０５°〜１４５°であることが好ましい。θが１０５°未満であると、表側凸部第１部分９ａが流路と交差する範囲が多くなり、流れを阻害することがある。θが１４５°を超えると、表側凸部第１部分９ａと表側凸部第２部分９ｂで形成される面の幅が狭く、大きい流路を確保し難い。 FIG. 4 is an explanatory diagram of the angle formed by the front convex portion first portion 9a and the front convex portion second portion 9b. In FIG. 4, a straight line parallel to the first portion 9a of the front convex portion and a straight line parallel to the second portion 9b of the front convex portion are shown by a alternate long and short dash line, and the angle formed by both straight lines is shown as θ. The angle formed by the front convex portion first portion 9a and the front convex portion second portion 9b is equal to the angle θ shown in FIG. The angle θ formed by the front convex portion first portion 9a and the front convex portion second portion 9b is larger than 90 °, preferably θ = 105 ° to 145 °. If θ is less than 105 °, the range in which the first convex portion 9a on the front side intersects the flow path increases, which may hinder the flow. When θ exceeds 145 °, the width of the surface formed by the front convex portion first portion 9a and the front convex portion second portion 9b is narrow, and it is difficult to secure a large flow path.

図１、図２（ａ）に示すように、裏側凸部１０は、本体部１に位置する直線状の裏側凸部第３部分１０ａと、裏側凸部第３部分１０ａに連設され注出口部２の開封手段１１近傍まで延びる直線状の裏側凸部第４部分１０ｂと、を含み、裏側凸部第３部分１０ａと裏側凸部第４部分１０ｂは異なる方向に延びている。裏側凸部１０は、図２（ｂ）に示すように、裏面フィルム１８の外面および内面ともに、裏面フィルムの内面側から外面側に向かって突出するように形成されている。実施形態において、裏側凸部第４部分１０ｂは開封手段１１を超えて注出口部の先端部６側まで延びている。図示は省略するが、裏側凸部第３部分１０ａと裏側凸部第４部分１０ｂの成す角度θ２は９０°より大きく、表側凸部第１部分９ａと表側凸部第２部分９ｂの成す角度θと同様、θ２＝１０５°〜１４５°であることが好ましい。また、表側凸部第１部分９ａと表側凸部第２部分９ｂの成す角度θと、裏側凸部第３部分１０ａと裏側凸部第４部分１０ｂの成す角度θ２は、同じであることが好ましいが、異なっていても良い。 As shown in FIGS. 1 and 2A, the back-side convex portion 10 is connected to the linear back-side convex portion 3rd portion 10a located in the main body portion 1 and the back-side convex portion 3rd portion 10a, and is connected to the spout. A linear back side convex portion 4th portion 10b extending to the vicinity of the opening means 11 of the portion 2 is included, and the back side convex portion 3rd portion 10a and the back side convex portion 4th portion 10b extend in different directions. As shown in FIG. 2B, the back side convex portion 10 is formed so that both the outer surface and the inner surface of the back surface film 18 project from the inner surface side to the outer surface side of the back surface film. In the embodiment, the back side convex portion 4th portion 10b extends beyond the opening means 11 to the tip portion 6 side of the spout portion. Although not shown, the angle θ2 formed by the back convex portion 3rd portion 10a and the back convex portion 4th portion 10b is larger than 90 °, and the angle θ formed between the front convex portion 1st portion 9a and the front convex portion 2nd portion 9b. Similarly, it is preferable that θ2 = 105 ° to 145 °. Further, it is preferable that the angle θ formed by the front convex portion 1st portion 9a and the front convex portion 2nd portion 9b and the angle θ2 formed by the back convex portion 3rd portion 10a and the back convex portion 4th portion 10b are the same. However, they may be different.

図２（ａ）に示すように、表側凸部第２部分９ｂおよび裏側凸部第４部分１０ｂは注出口部２の二等分線１６に沿って延びている。注出口部２の二等分線１６とは、注出口部２の基部７の一方の端点である連設点７ａと他方の端点である連設点７ｂを結ぶ線の中間点と、開封手段１１と注出口部シール部第１部分８ａの内縁との交点と開封手段１１と注出口部シール部の第２部分８ｂの内縁の交点とを結ぶ線の中間点と、を結ぶ線のことを指す。注出口部２の二等分線１６に沿ってとは、注出口部２の二等分線１６との角度が０°以上１０°以下であることを指す。 As shown in FIG. 2A, the front side convex portion 2nd portion 9b and the back side convex portion 4th portion 10b extend along the bisector 16 of the spout portion 2. The bisector 16 of the spout portion 2 is an intermediate point of a line connecting a continuous point 7a, which is one end point of the base 7 of the spout portion 2, and a continuous point 7b, which is the other end point, and an opening means. A line connecting the intersection of 11 and the inner edge of the first portion 8a of the spout portion seal portion and the intermediate point of the line connecting the opening means 11 and the intersection of the inner edge of the second portion 8b of the spout portion seal portion. Point to. Along the bisector 16 of the spout portion 2 means that the angle of the spout portion 2 with the bisector 16 is 0 ° or more and 10 ° or less.

本実施形態のパウチは、表面フィルム１７に表側凸部９を有し、裏面フィルム１８に裏側凸部１０を有し、注出口部２には開封手段１１が設けられており、表側凸部９は、本体部に位置する直線状の表側凸部第１部分９ａと、表側凸部第１部分９ａに連設され注出口部２の開封手段１１近傍まで延びる直線状の表側凸部第２部分９ｂと、を含み、表側凸部第１部分９ａと表側凸部第２部分９ｂは異なる方向に延びている。そして、裏側凸部１０は、本体部に位置する直線状の裏側凸部第３部分１０ａと、裏側凸部第３部分１０ａに連設され注出口部２の開封手段１１近傍まで延びる直線状の裏側凸部第４部分１０ｂと、を含み、裏側凸部第３部分１０ａと裏側凸部第４部分１０ｂは異なる方向に延びている。さらに、表側凸部第２部分９ｂおよび裏側凸部第４部分１０ｂは注出口部の二等分線に沿って延びており、正面視において、表側凸部第１部分９ａと裏側凸部第３部分１０ａは交差するように配置されている。このことにより、内容物を注出するときに注出口部２が閉塞することを抑制することができる。 The pouch of the present embodiment has a front side convex portion 9 on the front surface film 17, a back side convex portion 10 on the back surface film 18, and an opening means 11 is provided at the spout portion 2, and the front side convex portion 9 is provided. Is a linear front side convex portion 1st portion 9a located in the main body portion and a linear front side convex portion 2nd portion that is connected to the front side convex portion 1st portion 9a and extends to the vicinity of the opening means 11 of the spout portion 2. Including 9b, the front convex portion first portion 9a and the front convex portion second portion 9b extend in different directions. The back-side convex portion 10 is a linear shape that is connected to the linear back-side convex portion third portion 10a located in the main body portion and the back-side convex portion third portion 10a and extends to the vicinity of the opening means 11 of the spout portion 2. The back side convex portion 4th portion 10b is included, and the back side convex portion 3rd portion 10a and the back side convex portion 4th portion 10b extend in different directions. Further, the front convex portion 2nd portion 9b and the back convex portion 4th portion 10b extend along the bisector of the spout portion, and in front view, the front convex portion 1st portion 9a and the back convex portion 3rd. The portions 10a are arranged so as to intersect. As a result, it is possible to prevent the spout portion 2 from being blocked when the contents are poured out.

図２（ａ）に示すように、正面視において、表側凸部第１部分９ａと裏側凸部第３部分１０ａは交差するように配置されている。図１、図２（ａ）に示すように、表側凸部第２部分９ｂは、開封手段１１より注出口部２の先端部６側の位置から本体部１に含まれるように延びている。図１、図２（ａ）に示すように、裏側凸部第４部分１０ｂは、開封手段１１より注出口部２の先端部６側の位置から本体部１に含まれるように延びている。表側凸部第２部分９ｂおよび裏側凸部第４部分１０ｂが形成される範囲としては、少なくとも、開封手段１１近傍から本体部１に含まれるように延びていることが好ましい。 As shown in FIG. 2A, the front side convex portion first portion 9a and the back side convex portion third portion 10a are arranged so as to intersect each other in the front view. As shown in FIGS. 1 and 2A, the front convex portion 2nd portion 9b extends from the opening means 11 from the position on the tip 6 side of the spout portion 2 so as to be included in the main body portion 1. As shown in FIGS. 1 and 2A, the back side convex portion 4th portion 10b extends from the opening means 11 from the position on the tip portion 6 side of the spout portion 2 so as to be included in the main body portion 1. As for the range in which the front side convex portion 2nd portion 9b and the back side convex portion 4th portion 10b are formed, it is preferable that they extend from the vicinity of the opening means 11 so as to be included in the main body portion 1.

図２（ａ）に示すように、表側凸部第２部分９ｂは、注出口部２の二等分線１６より注出口部シール部第２部分８ｂ寄りの位置に設けられ、表側凸部第１部分９ａは注出口部シール部第２部分８ｂに向かって延びるように設けられ、裏側凸部第４部分１０ｂは、注出口部２の二等分線１６より注出口部シール部第１部分８ａ寄りの位置に設けられ、裏側凸部第３部分１０ａは注出口部シール部第１部分８ａに向かって延びるように設けられることが好ましい。このようにすることにより、内容物を注出するときに、第１部分９ａと第２部分９ｂとで形成される面、および、第３部分１０ａと第４部分１０ｂとで形成される面を大きくすることができるため、注出口部２が閉塞することをより抑制することができる。 As shown in FIG. 2A, the front side convex portion 2nd portion 9b is provided at a position closer to the spout portion seal portion 2nd portion 8b than the bisector 16 of the spout portion 2, and is provided at a position closer to the front side convex portion 2nd portion 8b. The first portion 9a is provided so as to extend toward the second portion 8b of the spout portion seal portion, and the fourth portion 10b of the back side convex portion is the first portion of the spout portion seal portion from the bisector 16 of the spout portion 2. It is preferable that the third portion 10a of the convex portion on the back side is provided at a position closer to 8a so as to extend toward the first portion 8a of the sealing portion of the spout port. By doing so, when the contents are poured out, the surface formed by the first portion 9a and the second portion 9b and the surface formed by the third portion 10a and the fourth portion 10b are formed. Since it can be made larger, it is possible to further suppress the blockage of the spout portion 2.

図２（ａ）に示した状態とは、凸部と注出口部２の二等分線１６との関係を対称的な位置に変更し、表側凸部第２部分９ｂが、注出口部２の二等分線１６より注出口部シール部第１部分８ａ寄りの位置に設けられ、表側凸部第１部分９ａが注出口部シール部第１部分８ａに向かって延びるように設けられ、裏側凸部第４部分１０ｂが、注出口部２の二等分線１６より注出口部シール部第２部分８ｂ寄りの位置に設けられ、裏側凸部第３部分１０ａは注出口部シール部第２部分８ｂに向かって延びるように設けられるようにしても同様の効果が得られる。 In the state shown in FIG. 2A, the relationship between the convex portion and the bisector 16 of the spout portion 2 is changed to a symmetrical position, and the front convex portion second portion 9b is the spout portion 2. It is provided at a position closer to the first portion 8a of the spout portion seal portion than the bisector 16 of the above, and the front side convex portion first portion 9a is provided so as to extend toward the spout portion seal portion first portion 8a, and the back side. The convex portion 4th portion 10b is provided at a position closer to the spout portion seal portion 2nd portion 8b than the bisector 16 of the spout portion 2, and the back side convex portion 3rd portion 10a is the spout portion seal portion 2nd. The same effect can be obtained by providing the portion so as to extend toward the portion 8b.

図１において、一点鎖線で示した円は、注出口部の基部７となる線分の中間点を中心とする半径３０ｍｍの仮想円２１である。表側凸部第１部分９ａおよび裏側凸部第３部分１０ａは、この仮想円２１の内部に形成されることが好ましい。表側凸部第１部分９ａ、裏側凸部第３部分１０ａが注出口部２の基部７となる線分の中間点を中心とする半径３０ｍｍの仮想円２１の内部に形成されることにより、内容物を注出するときに注出口部２が閉塞することをさらに抑制することができる。 In FIG. 1, the circle shown by the alternate long and short dash line is a virtual circle 21 having a radius of 30 mm centered on the midpoint of the line segment which is the base 7 of the spout portion. The front convex portion first portion 9a and the back convex portion third portion 10a are preferably formed inside the virtual circle 21. The contents are formed by forming the front convex portion 1st portion 9a and the back convex portion 3rd portion 10a inside a virtual circle 21 having a radius of 30 mm centered on the midpoint of the line segment serving as the base 7 of the spout portion 2. It is possible to further prevent the spout portion 2 from being blocked when the object is poured out.

図２（ｂ）に示すように、表側凸部第２部分９ｂは、表面フィルム１７側に形成されており、裏側凸部第４部分１０ｂは、裏面フィルム１８側に形成されている。実施形態では、表側凸部第２部分９ｂは、第１段９ｂａと第２段９ｂｂの２段になっており、裏側凸部第４部分１０ｂは、第１段１０ｂａと第２段１０ｂｂの２段になっている。表側凸部第２部分９ｂは、二等分線１６より注出口部シール部第２部分８ｂ寄りの位置（図面右側）に設けられ、裏側凸部第４部分１０ｂは、二等分線１６より注出口部シール部第１部分８ａ寄り（図面左側）の位置に設けられている。 As shown in FIG. 2B, the front side convex portion second portion 9b is formed on the front surface film 17 side, and the back side convex portion fourth portion 10b is formed on the back surface film 18 side. In the embodiment, the front side convex portion second portion 9b has two stages of the first stage 9ba and the second stage 9bb, and the back side convex portion fourth portion 10b has two stages of the first stage 10ba and the second stage 10bb. It is a step. The front side convex portion 2nd portion 9b is provided at a position closer to the spout portion seal portion 2nd portion 8b (right side in the drawing) than the bisector line 16, and the back side convex portion 4th portion 10b is from the bisector line 16. The spout portion is provided at a position closer to the first portion 8a of the seal portion (on the left side of the drawing).

表側凸部９は、雄型と雌型とを用いてエンボス加工することにより形成することができる。すなわち、表側凸部９はエンボス部である。同様に、裏側凸部１０は、雄型と雌型とを用いてエンボス加工することにより形成することができる。すなわち、裏側凸部１０もエンボス部である。実施形態では、表側凸部９、裏側凸部１０ともに、第１段と第２段の計２段の凸部を有する形状となっている。具体的には、図２（ｂ）に示すように、表側凸部第２部分９ｂは、第１段９ｂａと第２段９ｂｂの２段の凸部となっており、裏側凸部第４部分１０ｂは、第１段１０ｂａと第２段１０ｂｂの２段の凸部となっている。 The front convex portion 9 can be formed by embossing using a male mold and a female mold. That is, the front convex portion 9 is an embossed portion. Similarly, the back side convex portion 10 can be formed by embossing using a male mold and a female mold. That is, the back side convex portion 10 is also an embossed portion. In the embodiment, both the front side convex portion 9 and the back side convex portion 10 have a shape having a total of two stages of convex portions, that is, a first stage and a second stage. Specifically, as shown in FIG. 2B, the front side convex portion second portion 9b is a two-stage convex portion of the first stage 9ba and the second stage 9bb, and the back side convex portion fourth portion. Reference numeral 10b is a two-stage convex portion of a first stage 10ba and a second stage 10bb.

図５は、液体がある状態の注出口部のＡ−Ａ線断面図である。液体が注出口部２に流れると、表側凸部第１部分９ａと表側凸部第２部分９ｂとで形成する面、および、裏側凸部第３部分１０ａと裏側凸部第４部分１０ｂとで形成する面を大きくすることができるため、注出口部２が閉塞することを抑制することができる。例えば、図５に示すように、表側凸部第２部分９ｂと裏側凸部第４部分１０ｂの間が流路として確保される。 FIG. 5 is a cross-sectional view taken along the line AA of the spout portion in the state where the liquid is present. When the liquid flows to the spout portion 2, the surface formed by the front convex portion 1st portion 9a and the front convex portion 2nd portion 9b, and the back side convex portion 3rd portion 10a and the back side convex portion 4th portion 10b Since the surface to be formed can be made large, it is possible to prevent the spout portion 2 from being blocked. For example, as shown in FIG. 5, a flow path is secured between the front side convex portion second portion 9b and the back side convex portion fourth portion 10b.

＜実施例＞
（実施例）
表面フィルム、裏面フィルム、底面フィルムとして、厚み１５μｍのナイロンフィルムからなる基材層と、厚み１３０μｍのポリエチレンフィルムからなるシーラント層と、を含む積層フィルムを準備した。次に、２段の凸部に対応する雄型と雌型とを用いて表面フィルムをエンボス加工し、図２（ｂ）に示す表側凸部第１部分９ａと表側凸部第２部分９ｂを形成した。続いて、２段の凸部に対応する雄型と雌型とを用いて裏面フィルムをエンボス加工し、図２（ｂ）に示す裏側凸部第３部分１０ａと裏側凸部第４部分１０ｂを形成した。そして、表面フィルム、裏面フィルム、底面フィルムをシールして図１に示す実施形態のパウチを得た後、開口部１４から内容物として水を充填し、上部シール予定部３をシールして封止した。 <Example>
(Example)
As the front surface film, the back surface film, and the bottom surface film, a laminated film including a base material layer made of a nylon film having a thickness of 15 μm and a sealant layer made of a polyethylene film having a thickness of 130 μm was prepared. Next, the surface film is embossed using a male mold and a female mold corresponding to the two-stage convex portion, and the front convex portion first portion 9a and the front convex portion second portion 9b shown in FIG. 2 (b) are formed. Formed. Subsequently, the back surface film is embossed using a male mold and a female mold corresponding to the two-stage convex portion, and the back side convex portion third portion 10a and the back side convex portion fourth portion 10b shown in FIG. 2B are formed. Formed. Then, after sealing the front surface film, the back surface film, and the bottom surface film to obtain the pouch of the embodiment shown in FIG. 1, water is filled as the content from the opening 14, and the upper sealing portion 3 is sealed and sealed. did.

（比較例）
表側凸部２９と裏側凸部３０を変更した以外は実施例と同じにして比較例を作製した。図６は、比較例のパウチの正面図である。図６は、表面側から見たものであるが、説明の便宜上、裏面側に存在する裏側凸部３０を破線で示している。図６においては、正面視における中央位置を特定するための一点鎖線の直交する線分が示されている。比較例においては、表側凸部２９、裏側凸部３０以外は、実施例と同じであるので、同一符号を付して説明は省略する。比較例のパウチは、表面フィルム１７に表側凸部２９が形成されており、裏面フィルム１８に裏側凸部３０が形成されている。図６に示すように、表側凸部２９、裏側凸部３０は、いずれも曲線状である。表側凸部２９は、注出口部２から本体部１の下方である折込部１５付近にまで達している。裏側凸部３０は、注出口部２から第１側部シール部４ａ付近にまで達している。また、表側凸部２９と裏側凸部３０はパウチの幅方向中央部を超えた位置、すなわち注出口部２が設けられていない側の側部寄りの位置で交差している。また、図１に示す実施例のパウチは、表側凸部第１部分９ａおよび裏側凸部第３部分１０ａが仮想円２１に収まるのに対して、図６に示す比較例のパウチは、表側凸部２９、裏側凸部３０が仮想円２１から大きくはみ出している。 (Comparison example)
A comparative example was prepared in the same manner as in the examples except that the front convex portion 29 and the back convex portion 30 were changed. FIG. 6 is a front view of the pouch of the comparative example. FIG. 6 is viewed from the front surface side, but for convenience of explanation, the back side convex portion 30 existing on the back surface side is shown by a broken line. In FIG. 6, orthogonal line segments of the alternate long and short dash line for specifying the central position in the front view are shown. In the comparative example, the same reference numerals are given to the examples except for the front convex portion 29 and the back convex portion 30, and the description thereof will be omitted. In the pouch of the comparative example, the front side convex portion 29 is formed on the front surface film 17, and the back side convex portion 30 is formed on the back surface film 18. As shown in FIG. 6, the front side convex portion 29 and the back side convex portion 30 are both curved. The front convex portion 29 reaches from the spout portion 2 to the vicinity of the folding portion 15 below the main body portion 1. The back side convex portion 30 reaches from the spout portion 2 to the vicinity of the first side portion seal portion 4a. Further, the front convex portion 29 and the back convex portion 30 intersect at a position beyond the central portion in the width direction of the pouch, that is, a position closer to the side portion on the side where the spout portion 2 is not provided. Further, in the pouch of the embodiment shown in FIG. 1, the front convex portion 1st portion 9a and the back side convex portion 3rd portion 10a fit in the virtual circle 21, whereas the pouch of the comparative example shown in FIG. 6 has a front convex portion. The portion 29 and the back side convex portion 30 greatly protrude from the virtual circle 21.

図７と図８は、実施例と比較例の実験例を示す図である。図７と図８は、実施例と比較例のパウチにおいて、水が封止された状態で注出口部を真下に向けた状態を示す図であり、図７は正面図、図８は側面図である。注出口部を傾けると、図７や図８に示すように、実施例では開封手段１１が形成されている部分の表面フィルムと裏面フィルムの間に液体が入り込み、注出口部に流路が確保されるが、比較例では、開封手段１１が形成されている部分の表面フィルムと裏面フィルムの間に液体が入り込まず、注出口部が閉塞してしまった。 7 and 8 are diagrams showing experimental examples of Examples and Comparative Examples. 7 and 8 are views showing a state in which the spout portion is directed directly downward in a state where water is sealed in the pouches of the examples and the comparative examples, FIG. 7 is a front view, and FIG. 8 is a side view. Is. When the spout portion is tilted, as shown in FIGS. 7 and 8, in the embodiment, the liquid enters between the front film and the back film of the portion where the opening means 11 is formed, and a flow path is secured in the spout portion. However, in the comparative example, the liquid did not enter between the front film and the back film of the portion where the opening means 11 was formed, and the spout portion was blocked.

＜変形例＞
（凸部の変形例）
上記実施形態では、図２に示したように、２段階の凸部を有する表側凸部、裏側凸部を形成するようにしたが、１段階の凸部を有する表側凸部、裏側凸部を形成するようにしてもよい。すなわち凸部が台形状の輪郭を有するように形成されてもよい。図９は、表側凸部および裏側凸部の変形例を示す断面図であり、図２（ａ）のＡ−Ａ線に対応するものである。図９の例では、表側凸部第２部分９ｂ、裏側凸部第４部分１０ｂがいずれも１段階の凸部である状態を示している。 <Modification example>
(Modification example of convex part)
In the above embodiment, as shown in FIG. 2, the front side convex portion and the back side convex portion having the two-step convex portion are formed, but the front side convex portion and the back side convex portion having the one-step convex portion are formed. It may be formed. That is, the convex portion may be formed so as to have a trapezoidal contour. FIG. 9 is a cross-sectional view showing a modified example of the front convex portion and the back convex portion, and corresponds to the line AA of FIG. 2 (a). In the example of FIG. 9, the state in which the front side convex portion 2nd portion 9b and the back side convex portion 4th portion 10b are both one-step convex portions is shown.

（フィルムの変形例）
上記実施形態では、表面フィルム、裏面フィルム、底面フィルムの３枚のフィルムで構成するようにしたが、２枚や１枚のフィルムで構成してもよい。例えば、表面フィルムと底面フィルムと裏面フィルムが連設された１枚のフィルムを用いてパウチを構成してもよいし、表面フィルムと、裏面フィルムと底面フィルムを連設したフィルムからなる計２枚のフィルムを用いてパウチを形成してもよい。 (Example of film modification)
In the above embodiment, the film is composed of three films, a front film, a back film, and a bottom film, but it may be composed of two films or one film. For example, the pouch may be formed by using one film in which the front surface film, the bottom surface film and the back surface film are continuously provided, or a total of two sheets including the front surface film and the film in which the back surface film and the back surface film are continuously provided. The pouch may be formed using the film of.

（注出口部の変形例）
上記実施形態では、注出口部を、本体部の上部コーナー部に設けるようにしたが、上部の中央部や側部などに設けられていてもよい。 (Modification example of spout part)
In the above embodiment, the spout portion is provided at the upper corner portion of the main body portion, but it may be provided at the central portion or the side portion of the upper portion.

１・・・本体部
２・・・注出口部
２ａ・・・摘み部
３・・・上部シール予定部
４・・・側部シール部
４ａ・・・第１側部シール部
４ｂ・・・第２側部シール部
５・・・底部シール部
５ａ・・・第１底部シール部
５ｂ・・・第２底部シール部
６・・・注出口部の先端部
７・・・注出口部の基部
７ａ、７ｂ・・・連設点（基部７の端部）
８・・・注出口部シール部
８ａ・・・注出口部シール部第１部分
８ｂ・・・注出口部シール部第２部分
９・・・表側凸部
９ａ・・・表側凸部第１部分
９ｂ・・・表側凸部第２部分
１０・・・裏側凸部
１０ａ・・・裏側凸部第３部分
１０ｂ・・・裏側凸部第４部分
１１・・・開封手段
１２・・・第１切欠部
１２ａ・・・第１切欠部の頂点
１３・・・第２切欠部
１３ａ・・・第２切欠部の頂点
１４・・・開口部
１５・・・折込部
１６・・・二等分線
１７・・・表面フィルム
１８・・・裏面フィルム
１９・・・第１肩部シール部
２０・・・第２肩部シール部
２１・・・仮想円 1 ... Main body part 2 ... Injection outlet part 2a ... Knob part 3 ... Upper part to be sealed 4 ... Side part seal part 4a ... 1st side part seal part 4b ... No. 2 Side seal part 5 ・・・ Bottom seal part 5a ・・・ 1st bottom seal part 5b ・・・ 2nd bottom seal part 6 ・・・ Tip part of spout part 7 ・・・ Base part 7a of spout part , 7b ... Continuous installation point (end of base 7)
8 ... Outlet part seal part 8a ... Outlet part seal part 1st part 8b ... Outlet part seal part 2nd part 9 ... Front side convex part 9a ... Front side convex part 1st part 9b ・・・ Front side convex part 2nd part 10 ・・・ Back side convex part 10a ・・・ Back side convex part 3rd part 10b ・・・ Back side convex part 4th part 11 ・・・ Opening means 12 ・・・ 1st notch Part 12a ... The apex of the first notch 13 ... The apex of the second notch 13a ... The apex of the second notch 14 ... The opening 15 ... The folding part 16 ... The bisector 17・・・ Front surface film 18 ・・・ Back surface film 19 ・・・ First shoulder seal part 20 ・・・ Second shoulder seal part 21 ・・・ Virtual circle

Claims

Has a surface film and the back film, and a body portion for containing the contents, a pouch with a spout integral with the main body portion,
Front surface film only has one front protrusion to have one of the rear convex portion only on the back surface film,
An opening means is provided at the spout.
The front convex portion is a linear front convex portion first portion located in the main body portion and a linear front convex portion second portion that is connected to the front convex portion first portion and extends to the vicinity of the opening means of the spout portion. If, in the configuration, the front protrusion second portion and the front protrusion first portion extends in a different direction,
The back-side convex portion is a linear back-side convex portion third portion located in the main body portion and a linear back-side convex portion fourth portion that is connected to the back-side convex portion third portion and extends to the vicinity of the opening means of the spout portion. If, in the configuration, the back side protrusions fourth portion and the rear protrusion third portion extends in a different direction,
The second convex portion on the front side and the fourth convex portion on the back side extend along the bisector of the spout portion.
The front side convex portion 2nd portion and the back side convex portion 4th portion are separated from the width of each of the front side convex portion 2nd portion and the back side convex portion 4th portion in the surface directions of the front surface film and the back surface film. ,
In front view, the first portion of the front convex portion and the third portion of the back convex portion are arranged so as to intersect with each other .
The front convex portion and the back convex portion are embossed portions.
A pouch characterized by that.

The spout portion includes a spout portion seal portion, and the spout portion seal portion includes a spout portion seal portion first portion and a spout portion seal portion second with a bisector of the spout portion interposed therebetween. Divided into parts,
The second portion of the front convex portion is provided at a position closer to the second portion of the spout portion seal portion than the bisector of the spout portion, and the first portion of the front convex portion is the second portion of the spout portion. It extends from the position near the first portion of the spout portion seal portion to the second portion of the spout portion seal portion from the equal division line, and is provided so as to exceed the bisector of the spout portion, and is provided on the back side. The fourth portion of the convex portion is provided at a position closer to the first portion of the seal portion of the spout portion than the bisector of the spout portion, and the third portion of the convex portion on the back side is bisected of the spout portion. It extends from the line closer to the second portion of the spout portion seal portion toward the first portion of the spout portion seal portion, and is provided so as to exceed the bisector of the spout portion.
The second portion of the front convex portion is provided at a position closer to the first portion of the spout portion seal portion than the bisector of the spout portion, and the first portion of the front convex portion is the second portion of the spout portion. It extends from the position near the second portion of the spout portion seal portion to the first portion of the spout portion seal portion from the equal division line, and is provided so as to exceed the bisector of the spout portion. The fourth portion of the back side convex portion is provided at a position closer to the second portion of the spout portion seal portion than the bisector of the spout portion, and the third portion of the back side convex portion is the second grade of the spout port portion. It is characterized in that it extends from the position near the first portion of the spout portion seal portion to the second portion of the spout portion seal portion from the branch line and is provided so as to exceed the bisector of the spout portion. The pouch according to claim 1.

The first portion and the back-side protrusion third portion the front convex portion inside the circle of radius 30mm around the midpoint of one end and the other connecting end line of the base of the spout portion The pouch according to claim 1 or 2, wherein the pouch is provided.