JP2016034837A - Pouch - Google Patents
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- JP2016034837A JP2016034837A JP2014157986A JP2014157986A JP2016034837A JP 2016034837 A JP2016034837 A JP 2016034837A JP 2014157986 A JP2014157986 A JP 2014157986A JP 2014157986 A JP2014157986 A JP 2014157986A JP 2016034837 A JP2016034837 A JP 2016034837A
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- pouch
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- folded portion
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- 229920005989 resin Polymers 0.000 claims abstract description 42
- 239000011347 resin Substances 0.000 claims abstract description 42
- 239000000853 adhesive Substances 0.000 claims abstract description 22
- 230000001070 adhesive effect Effects 0.000 claims abstract description 22
- 238000010008 shearing Methods 0.000 claims description 15
- 238000010438 heat treatment Methods 0.000 claims description 9
- 230000008018 melting Effects 0.000 claims description 3
- 238000002844 melting Methods 0.000 claims description 3
- 239000010410 layer Substances 0.000 description 27
- 238000007906 compression Methods 0.000 description 21
- 230000006835 compression Effects 0.000 description 19
- 238000000034 method Methods 0.000 description 17
- 238000005452 bending Methods 0.000 description 12
- 229910052751 metal Inorganic materials 0.000 description 10
- 239000002184 metal Substances 0.000 description 10
- -1 polypropylene, propylene-ethylene copolymer Polymers 0.000 description 8
- 239000004677 Nylon Substances 0.000 description 6
- 229910052782 aluminium Inorganic materials 0.000 description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 6
- 229920001778 nylon Polymers 0.000 description 6
- 239000004743 Polypropylene Substances 0.000 description 5
- 239000011888 foil Substances 0.000 description 5
- 229920001155 polypropylene Polymers 0.000 description 5
- 210000003811 finger Anatomy 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 229920000298 Cellophane Polymers 0.000 description 2
- 239000004278 EU approved seasoning Substances 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 239000003599 detergent Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 235000011194 food seasoning agent Nutrition 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 229920005672 polyolefin resin Polymers 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000002453 shampoo Substances 0.000 description 2
- 239000002356 single layer Substances 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 229920005992 thermoplastic resin Polymers 0.000 description 2
- 229920001634 Copolyester Polymers 0.000 description 1
- 229920000089 Cyclic olefin copolymer Polymers 0.000 description 1
- 239000004713 Cyclic olefin copolymer Substances 0.000 description 1
- 229920000219 Ethylene vinyl alcohol Polymers 0.000 description 1
- 239000004687 Nylon copolymer Substances 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 150000008064 anhydrides Chemical class 0.000 description 1
- 150000001735 carboxylic acids Chemical class 0.000 description 1
- 239000002734 clay mineral Substances 0.000 description 1
- 239000005038 ethylene vinyl acetate Substances 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 210000004247 hand Anatomy 0.000 description 1
- 229920001903 high density polyethylene Polymers 0.000 description 1
- 239000004700 high-density polyethylene Substances 0.000 description 1
- 229920000554 ionomer Polymers 0.000 description 1
- 229920000092 linear low density polyethylene Polymers 0.000 description 1
- 239000004707 linear low-density polyethylene Substances 0.000 description 1
- 229920001684 low density polyethylene Polymers 0.000 description 1
- 239000004702 low-density polyethylene Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229920001179 medium density polyethylene Polymers 0.000 description 1
- 239000004701 medium-density polyethylene Substances 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920001225 polyester resin Polymers 0.000 description 1
- 239000004645 polyester resin Substances 0.000 description 1
- 229920013716 polyethylene resin Polymers 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
- 210000003813 thumb Anatomy 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
- 230000037303 wrinkles Effects 0.000 description 1
Landscapes
- Bag Frames (AREA)
Abstract
Description
本発明は、内容物の注出を容易に行うパウチに関するものであり、詳細には、パウチの折れや座屈が防止され、把持部の強度が高い内容物の注出性に優れたパウチに関する。 TECHNICAL FIELD The present invention relates to a pouch that easily pours out contents, and in particular, relates to a pouch that is prevented from being folded or buckled and has a high gripping portion and has excellent pourability. .
樹脂フィルムを重ね合わせ、端部をシールして成る袋状容器（パウチ）は、従来、洗剤やシャンプー等の日用品や、調味料等の食料品といった各種用途に広く使用されている。このような袋状容器から内容物を注出する際、ユーザーは両手で袋状容器を把持する必要があり、片手で把持して内容物を注出することができる袋状容器が強く求められている。 Bag-shaped containers (pouches) formed by laminating resin films and sealing ends have been widely used in various applications such as daily necessities such as detergents and shampoos and foods such as seasonings. When pouring the contents from such a bag-like container, the user needs to hold the bag-like container with both hands, and there is a strong demand for a bag-like container that can be held and poured out with one hand. ing.
かかる要望を実現するため、特許文献１では、袋の胴部を形成する外縁シール部内に、内容物収納部とは別の取っ手機能を有する独立気室を設けた自立袋が提案されている。しかし、特許文献１の自立袋は、内容物の重さに耐えられずに折れや座屈が生じ易く、また、外縁シール部内に取っ手機能を有する独立気室を設けているため取っ手としての強度も低く、このため、内容物の注出時の安定性に欠け、さらに、その製造工程も煩雑である。 In order to realize such a demand, Patent Document 1 proposes a self-supporting bag in which an independent air chamber having a handle function different from the contents storage portion is provided in an outer edge seal portion that forms a body portion of the bag. However, the self-supporting bag of Patent Document 1 cannot easily withstand the weight of the contents and easily breaks and buckles. Also, since an independent air chamber having a handle function is provided in the outer edge seal portion, the strength as a handle. Therefore, the stability at the time of dispensing the contents is lacking, and the manufacturing process is complicated.
従って本発明の目的は、パウチに折れや座屈が生じず、また、取っ手としての把持部の強度を高めて内容物の注出の安定性に優れ、さらに、その製造も容易なパウチを提供することである。 Accordingly, an object of the present invention is to provide a pouch that does not fold or buckle in the pouch, has high gripping portion strength as a handle, is excellent in the stability of pouring contents, and is easy to manufacture. It is to be.
本発明によれば、サイドシール部に沿った折り曲げ線で折り曲げられた折り返し部を有する、樹脂フィルムからなるパウチであって、前記折り返し部を部分的に接着して接着部を形成し、該接着部の下方の折り返し部を把持部としたことを特徴とするパウチが提供される。 According to the present invention, there is provided a pouch made of a resin film having a folded portion that is folded along a folding line along the side seal portion, wherein the folded portion is partially bonded to form an bonded portion, and the bonding There is provided a pouch characterized in that the folded portion below the portion is a gripping portion.
本発明のパウチにおいては、
（１）前記折り返し部が、サイドシール部に沿った第１折り曲げ線と第２折り曲げ線とで折り曲げられた多重構造を有し、前記第１折り曲げ線がサイドシール部上に位置し、前記第２折り曲げ線がサイドシール部の内側端縁よりもパウチ内方側に位置すること、
（２）前記折り返し部が一重構造を有し、前記折り曲げ線が、サイドシール部の内側端縁よりもパウチ内方側に位置すること、
（３）前記接着部が、パウチの上方側に形成されていること、
（４）前記接着部が、間隔を開けて複数形成されていること、
（５）前記接着部が、前記折り返し部を冷間で厚み方向に剪断し且つ圧縮することで生じる自己発熱による溶融によって形成されていること、
が好適である。
In the pouch of the present invention,
(1) The folded portion has a multiple structure that is folded by a first fold line and a second fold line along the side seal portion, the first fold line is located on the side seal portion, 2 that the fold line is located on the inner side of the pouch from the inner edge of the side seal part,
(2) the folded portion has a single structure, and the fold line is positioned on the inner side of the pouch from the inner edge of the side seal portion;
(3) The adhesive portion is formed on the upper side of the pouch,
(4) A plurality of the bonding portions are formed at intervals.
(5) The adhesive portion is formed by melting due to self-heating generated by cold shearing and compressing the folded portion in the thickness direction;
Is preferred.
本発明のパウチによれば、サイドシール部に沿った折り曲げ線で折り曲げられた折り返し部を部分的に接着して接着部を形成し、該接着部の下方の折り返し部を把持部としたので、パウチに折れや座屈が生じず、また、取っ手としての把持部の強度が高くなるため、内容物の注出時の安定性に優れ、さらに、その製造も容易である。 According to the pouch of the present invention, the folded portion that is folded along the folding line along the side seal portion is partially bonded to form the bonded portion, and the folded portion below the bonded portion is used as the gripping portion. Since the pouch is not bent or buckled, and the strength of the gripping portion as a handle is increased, the contents are excellent in stability when being poured out, and the manufacture thereof is easy.
本発明のパウチは、サイドシール部に沿った折り曲げ線で折り曲げられた折り返し部を有しており、かかる折り返し部においては、折り返し部内の樹脂フィルム同士や、折り返し部と側面フィルムとが部分的に接着固定された接着部が設けられており、その接着部の下方の折り返し部が把持部となっていることが重要な特徴である。 The pouch of the present invention has a folded portion that is folded along a folding line along the side seal portion. In the folded portion, the resin films in the folded portion or the folded portion and the side film are partially formed. It is an important feature that an adhesive portion that is bonded and fixed is provided, and a folded portion below the adhesive portion serves as a grip portion.
本発明において「パウチ」とは、公知の樹脂フィルム製パウチを意味し、例えば、２枚の側面フィルムの間に２つ折りにした底部フィルムを介在させ、サイドシール部及びボトムシール部によりシールしたスタンディングパウチや、或いは樹脂フィルムを３方シール或いは４方シールした平パウチを意味する。以後、便宜上、スタンディングパウチを例にとって、本発明のパウチについて説明する。 In the present invention, “pouch” means a known resin film pouch, for example, a standing film in which a bottom film folded in half is interposed between two side films and sealed by a side seal part and a bottom seal part. It means a pouch or a flat pouch with a resin film sealed in three or four directions. Hereinafter, for the sake of convenience, the pouch of the present invention will be described using a standing pouch as an example.
パウチの樹脂フィルムとしては、従来公知のパウチに使用される樹脂フィルムが使用され、例えば、ヒートシール性を有する熱可塑性樹脂からなる単層フィルム、或いはこれらのヒートシール性樹脂フィルムをパウチの内層とし、他のフィルムを積層した２層以上の層構成を有する積層樹脂フィルムを使用することができる。
ヒートシール性樹脂としては、例えば低密度ポリエチレン、線状低密度ポリエチレン、中密度ポリエチレン、高密度ポリエチレン、ポリプロピレン、プロピレン−エチレン共重合体、エチレン−酢酸ビニル共重合体、エチレン系不飽和カルボン酸乃至その無水物でグラフト変性されたオレフィン樹脂等のオレフィン系樹脂、アイオノマー樹脂、比較的低融点乃至低軟化点のポリアミド乃至コポリアミド樹脂、ポリエステル乃至コポリエステル樹脂等を挙げることができる。
積層樹脂フィルムにおける他の層としては、種々の熱可塑性樹脂、アルミニウム箔等の金属箔、或いは紙やセロハン等を外層或いは中間層として使用することができる。また、パウチにガスバリア性を付与する場合には、エチレンビニルアルコール共重合体、ナイロン又は環状オレフィンコポリマー等のガスバリア性樹脂から成る層、アルミニウムや酸化珪素などの金属酸化物蒸着膜を有する樹脂層、粘土鉱物を含有する樹脂層、アルミニウム等の金属箔を外層或いは中間層として使用することができる。
As a resin film of a pouch, a resin film used in a conventionally known pouch is used. For example, a single layer film made of a thermoplastic resin having heat sealability, or these heat sealable resin films as an inner layer of a pouch. A laminated resin film having a layer structure of two or more layers obtained by laminating other films can be used.
Examples of the heat sealable resin include low density polyethylene, linear low density polyethylene, medium density polyethylene, high density polyethylene, polypropylene, propylene-ethylene copolymer, ethylene-vinyl acetate copolymer, ethylenically unsaturated carboxylic acid or the like. Examples thereof include an olefin resin such as an olefin resin graft-modified with the anhydride, an ionomer resin, a polyamide or copolyamide resin having a relatively low melting point or a low softening point, and a polyester or copolyester resin.
As other layers in the laminated resin film, various thermoplastic resins, metal foils such as aluminum foil, paper, cellophane, or the like can be used as an outer layer or an intermediate layer. In addition, when providing gas barrier properties to the pouch, a layer made of a gas barrier resin such as ethylene vinyl alcohol copolymer, nylon or cyclic olefin copolymer, a resin layer having a metal oxide vapor deposition film such as aluminum or silicon oxide, A resin layer containing a clay mineral and a metal foil such as aluminum can be used as an outer layer or an intermediate layer.
図１に示すとおり、本発明のパウチ１においては、折り返し部２の一部が、部分的に接着された接着部３となっており、その下方が非接着領域である把持部４となっている。ユーザーは、例えば、左手の親指以外の指を、接着部３の下方の非接着領域である把持部４と側面フィルムとの間の空間に挿入し、人差し指を接着部３にひっかけて把持部４を把持することで、容易に且つしっかりと本発明のパウチ１を把持することができる。また、パウチ１の注出口５を開封後、ユーザーは把持部４を把持し、安定して注出口５から内容物を注出することができる。 As shown in FIG. 1, in the pouch 1 of the present invention, a part of the folded portion 2 is a bonded portion 3 that is partially bonded, and the lower portion is a gripping portion 4 that is a non-bonded region. Yes. For example, the user inserts a finger other than the thumb of the left hand into a space between the grip part 4 and the side film, which is a non-adhesion region below the adhesive part 3, and hooks the index finger on the adhesive part 3 to hold the finger part 4. By grasping the pouch 1, the pouch 1 of the present invention can be grasped easily and firmly. In addition, after opening the spout 5 of the pouch 1, the user can grip the grip portion 4 and stably pour out the contents from the spout 5.
本発明において、折り返し部２は、パウチ１のサイドシール部６の軸方向に沿って延びる。前記折り返し部２を多重構造、例えば二重構造とする場合は、図２，３に示すように、サイドシール部６内の第１折り曲げ線７と、サイドシール部６の内側端縁よりもパウチ内方側に位置する第２折り曲げ線８を順次折り曲げ加工することにより形成される。また、前記折り返し部２が一重構造の場合は、サイドシール部の内側端縁よりもパウチ内方側（収納部側）に位置する折り曲げ線を折り曲げ加工することにより形成される。いずれの場合も、折り返し部２は、サイドシール部を含むパウチ幅方向端部によって構成される。これにより、折り返し部の折り曲げ加工を容易に行うことができ、パウチの折れや座屈が防止され、特に、本発明のパウチがスタンディングパウチの場合には自立性も向上する。 In the present invention, the folded portion 2 extends along the axial direction of the side seal portion 6 of the pouch 1. When the folded portion 2 has a multiple structure, for example, a double structure, as shown in FIGS. 2 and 3, the first folding line 7 in the side seal portion 6 and the pouch rather than the inner edge of the side seal portion 6 are used. It is formed by sequentially bending the second fold line 8 located on the inner side. Further, when the folded portion 2 has a single structure, the folded portion 2 is formed by bending a folding line located on the inner side of the pouch (on the storage portion side) with respect to the inner edge of the side seal portion. In any case, the folded portion 2 is constituted by the end portion in the pouch width direction including the side seal portion. As a result, the folded portion can be easily bent, and the pouch is prevented from being folded or buckled. In particular, when the pouch of the present invention is a standing pouch, the self-supporting property is also improved.
また、折り返し部２を多重構造とし、側面フィルムの切断端縁を多重構造の内部に位置させることが好ましい。このように、側面フィルムの切断端縁を多重構造の内部に位置させることで（図３（ｂ）参照）、把持部４を把持する際に手に側面フィルム切断端縁が食い込むことや、手や衣服に側面フィルム切断端縁が引っ掛かることが有効に防止され、同時に、折り返し部２の剛性が顕著に向上する。また、パウチがスタンディングパウチの場合は、自立性が向上し、且つ自立時の座屈やしわの発生がより有効に防止される。
尚、図２は、図１に示すパウチ１の片側に折り返し部２を形成する場合の第１折り曲げ線７と第２折り曲げ線８の位置を示している。
Moreover, it is preferable that the folding | turning part 2 is made into a multiplex structure, and the cut edge of a side film is located in the inside of a multiplex structure. In this way, by positioning the cut edge of the side film inside the multiple structure (see FIG. 3B), the side film cut edge bites into the hand when holding the grip portion 4, Further, it is possible to effectively prevent the side film cutting edge from being caught on clothes and clothing, and at the same time, the rigidity of the folded portion 2 is significantly improved. In addition, when the pouch is a standing pouch, the independence is improved and the occurrence of buckling and wrinkles during the independence is more effectively prevented.
FIG. 2 shows the positions of the first fold line 7 and the second fold line 8 when the folded portion 2 is formed on one side of the pouch 1 shown in FIG.
前記した多重構造を有する折り返し部２においては、第１折り曲げ線７の位置は、パウチの大きさや、サイドシール部６の幅等によっても異なるが、サイドシール部６の外側端縁からパウチ内方側に２〜３ｍｍとし、次いで、さらに折り曲げる第２折り曲げ線８の位置は、第１折り曲げ線７から１５〜２０ｍｍ離れていることが好適である。
そして、第１折り曲げ線７の位置がサイドシール部６の外側端縁に近すぎると、前記した折り曲げ加工が困難となる。一方、第１折り曲げ線７の位置が、パウチ内方に位置し過ぎると、第２折り曲げ線８もパウチ内方に位置させることになり、パウチ内容量が減少するためパウチサイズの変更が必要となり、非効率的である。また、第２折り曲げ線８の位置が第１折り曲げ線７に近すぎると、折り返し部２の幅が狭くなり、折り返し部２の把持部４が十分な幅を有することができず、パウチ１を安定して把持しづらくなる。一方、第２折り曲げ線８の位置がパウチ内方に位置しすぎると、第１折り曲げ線７の場合と同様に、パウチ内容量が減少するためパウチサイズの変更が必要となり、非効率的である。
In the folded portion 2 having the multiple structure described above, the position of the first fold line 7 varies depending on the size of the pouch, the width of the side seal portion 6, and the like, but from the outer edge of the side seal portion 6 to the inside of the pouch. It is preferable that the position of the second fold line 8 is 2 to 3 mm on the side and then further bent is 15 to 20 mm away from the first fold line 7.
If the position of the first fold line 7 is too close to the outer edge of the side seal portion 6, the bending process described above becomes difficult. On the other hand, if the position of the first fold line 7 is positioned too much inside the pouch, the second fold line 8 is also positioned inside the pouch, and the pouch size is reduced, so the pouch size needs to be changed. Inefficient. On the other hand, if the position of the second fold line 8 is too close to the first fold line 7, the width of the folded portion 2 becomes narrow, and the grip portion 4 of the folded portion 2 cannot have a sufficient width. It becomes difficult to grip stably. On the other hand, if the position of the second fold line 8 is positioned too much inside the pouch, as in the case of the first fold line 7, the capacity of the pouch is reduced, so that the pouch size needs to be changed, which is inefficient.
また、折り返し部２が一重構造を有する場合（図４参照）、第１折り曲げ線７は、折り返し部２の把持部４の幅が、上述した多重構造の把持部４と同様の幅になるようにサイドシール部６の内側端縁よりもパウチ内方側に位置し、折り曲げ加工が施される。
尚、前述した折り曲げ加工は、特開２０１２−３０９１１で本出願人が提案した折り曲げ加工装置及び折り曲げ加工方法を適用し、或いは適宜改良して行われる。
Further, when the folded portion 2 has a single structure (see FIG. 4), the width of the grip portion 4 of the folded portion 2 is the same as that of the grip portion 4 having the multiple structure described above. The pouch is located on the inner side edge of the side seal portion 6 and is bent.
Note that the above-described bending process is performed by applying or appropriately improving the bending apparatus and the bending method proposed by the present applicant in Japanese Patent Application Laid-Open No. 2012-30911.
また、前述した多重の折り曲げ加工を行ったパウチ１は、図３に示すように、前述した第１折り曲げ線７及び第２折り曲げ線８を折り曲げ加工した多重の折り返し部２を有している。そして、折り返し部２は、パウチ１の注出口の位置、把持部としての機能を考慮して、パウチ１の両側の少なくとも一方に形成すれば良いが、パウチの折れ、座屈を防止して剛性を付与する点からパウチ１の両側に形成するのが好ましい。その場合、少なくとも一方の折り返し部２に接着部３および把持部４を形成すればよいが、パウチ１の両側の折り返し部２に接着部３を形成して両側に把持部４を形成してもよい。また、一方の折り返し部２のみに接着部３と把持部４とを形成する場合、接着部３を形成しない折り返し部２は、一重構造でも多重構造でもよいが、パウチ内容量を減少させないため、接着部３を形成する折り返し部２よりも幅を狭く形成するのが好ましい。 Further, the pouch 1 that has been subjected to the multiple bending process described above has multiple folded portions 2 that are formed by bending the first folding line 7 and the second folding line 8 described above, as shown in FIG. The folded portion 2 may be formed on at least one of both sides of the pouch 1 in consideration of the position of the spout of the pouch 1 and the function as a gripping portion. However, the folded portion 2 is rigid by preventing the pouch from being folded or buckled. It is preferable to form it on both sides of the pouch 1 from the viewpoint of imparting the above. In that case, the adhesive part 3 and the grip part 4 may be formed on at least one folded part 2, but the adhesive part 3 may be formed on the folded part 2 on both sides of the pouch 1 and the grip part 4 may be formed on both sides. Good. In addition, when the adhesive portion 3 and the grip portion 4 are formed only on one folded portion 2, the folded portion 2 that does not form the bonded portion 3 may be a single structure or a multiple structure, but does not reduce the pouch internal capacity. It is preferable that the width is narrower than that of the folded portion 2 that forms the adhesive portion 3.
本発明においては、図５（ａ）に示すように、パウチ１は、注出口５が形成された側の折り返し部２とは反対側の折り返し部２の上方において、折り返し部２を接着して接着部３を形成し、その下方の非接着領域を把持部４とすることが好ましい。そして、接着部３は、折り返し部２に少なくとも１か所形成されればよいが、接着部３の下方に形成された把持部４の把持のしやすさ、パウチ１の把持部４を把持し、内容物を注出する際のパウチの安定性をより向上させるために、把持部４の上下に形成することが好ましい。その場合、接着部３に挟まれる把持部４は、ユーザーの手指が挿入できる程度に十分な大きさを有していればよく、パウチの高さ方向に９〜１２ｃｍの長さを有することが好ましい。さらに、パウチ１の把持位置の変更、また、パウチ１の自立性をより向上させるという観点から、接着部３は間隔を開けて複数設けることが好ましい。 In the present invention, as shown in FIG. 5 (a), the pouch 1 is bonded to the folded portion 2 above the folded portion 2 on the side opposite to the folded portion 2 on the side where the spout 5 is formed. It is preferable to form the adhesion part 3 and to set the non-adhesion area below the grip part 4. The adhesive portion 3 may be formed in at least one place on the folded portion 2, but the grip portion 4 formed below the adhesive portion 3 is easy to grip, and the grip portion 4 of the pouch 1 is gripped. In order to further improve the stability of the pouch when the contents are poured out, it is preferable to form the upper and lower sides of the grip portion 4. In that case, the gripping portion 4 sandwiched between the adhesive portions 3 only needs to have a size sufficient to allow the user's fingers to be inserted, and may have a length of 9 to 12 cm in the height direction of the pouch. preferable. Furthermore, from the viewpoint of changing the gripping position of the pouch 1 and further improving the self-supporting property of the pouch 1, it is preferable to provide a plurality of adhesive portions 3 at intervals.
また、接着部３の接着の方法としては、従来公知の方法、例えば、接着剤による接着、超音波、ヒートシール、レーザー照射等による溶着を採用してもよいが、図６に示すように、折り返し部２を冷間で厚み方向へ剪断と圧縮して接着を行う方法が好ましい。このような接着の方法を採用することにより、大規模な設備が不要となり、簡易的な手段によって高速で接着ができ、さらに、パウチ１を構成する樹脂フィルムの制限を少なくさせることができる。 In addition, as a method of bonding the bonding portion 3, a conventionally known method, for example, bonding by an adhesive, ultrasonic wave, heat sealing, welding by laser irradiation, or the like may be adopted, but as shown in FIG. A method of bonding by folding and folding the folded portion 2 in the thickness direction in the cold direction is preferable. By adopting such a bonding method, a large-scale facility is not required, bonding can be performed at high speed by a simple means, and the restriction of the resin film constituting the pouch 1 can be reduced.
そして、本発明のパウチ１を構成する樹脂フィルムは、折り返し部２を冷間で厚み方向へ剪断と圧縮によって接着する場合、ヒートシール性樹脂層を少なくとも１層有する必要がある。ヒートシール性樹脂は、剪断と圧縮を行うことにより、後述する自己発熱により容易に溶融接着することができる。また、パウチ１において前記剪断と圧縮が確実に安定して行われ、ヒートシール性樹脂の自己発熱による溶融接着を確実に行う観点から、パウチ１を構成する樹脂フィルムとしては、ヒートシール性樹脂層と非ヒートシール性樹脂層とを有する積層樹脂フィルムを用いることが好ましい。ヒートシール性樹脂層としては、伸びが大きい樹脂フィルム、例えば、ポリエチレン樹脂フィルム、ポリプロピレン樹脂フィルムが好ましい。ヒートシール性樹脂以外の非ヒートシール性樹脂層としては、伸びが小さい樹脂フィルム、例えば、ナイロン樹脂フィルム、ポリエステル樹脂フィルム等の延伸フィルム、アルミニウム箔等の金属箔、紙、セロハン、樹脂層に金属蒸着膜を設けた層が好ましい。好適な積層フィルムの層構成としては、内層側から外層側に向かって、ポリエチレン／ナイロン、ポリエチレン／ナイロン／ＰＥＴ、ポリプロピレン／ナイロン、ポリプロピレン／ナイロン／ＰＥＴ、ポリプロピレン／アルミ／ナイロン／ＰＥＴ、ポリプロピレン／アルミ／ＰＥＴを挙げることができる。 And the resin film which comprises the pouch 1 of this invention needs to have at least 1 layer of heat-sealable resin layers, when the folding | returning part 2 is adhere | attached by shear and compression to the thickness direction in the cold. The heat-sealable resin can be easily melted and bonded by self-heating described later by performing shearing and compression. In addition, from the viewpoint of reliably performing the shearing and compression in the pouch 1 and surely performing melt adhesion by self-heating of the heat-sealable resin, the resin film constituting the pouch 1 may be a heat-sealable resin layer. It is preferable to use a laminated resin film having a non-heat-sealable resin layer. As the heat-sealable resin layer, a resin film having a large elongation, for example, a polyethylene resin film or a polypropylene resin film is preferable. Non-heat-sealable resin layers other than heat-sealable resins include resin films with low elongation, for example, stretched films such as nylon resin films and polyester resin films, metal foils such as aluminum foil, paper, cellophane, and metal in resin layers A layer provided with a deposited film is preferred. Suitable laminated film layers are polyethylene / nylon, polyethylene / nylon / PET, polypropylene / nylon, polypropylene / nylon / PET, polypropylene / aluminum / nylon / PET, polypropylene / aluminum from the inner layer side to the outer layer side. / PET.
図６は、厚み方向へ剪断と圧縮による接着を説明するための概略図である。そして、図６（ａ）は、例えば折り返し部２が二重構造である態様について、その断面を示す。この折り返し部２に、図７に示す剪断加工部２１と圧縮加工部２２を交互に有する加工金型２０を下降させて押し付けて、図６（ｂ）に示すように剪断加工部２１によって折り返し部２および側面フィルムの各層を切断（剪断）し、同時に図６（ｂ´）に示すように圧縮加工部２２によって前記各層を圧縮する。この結果、加工金型２０の剪断加工部２１の切断により、その近傍の各層の切断面に摩擦熱が生じ、また、圧縮加工部２２の圧縮により、樹脂フィルムの内部発生熱等の自己発熱が生じる。次いで、図６（ｃ）（ｃ´）に示すように、加工金型２０を急速に上昇させ、剪断加工部２１によって、さらに各層の切断面に自己発熱を生じさせ、前記各層の断層面同士の界面を溶融し、接着する。このように、剪断と圧縮を同時に行う加工金型２０を用いることで、パウチに孔を開けることなく折り返し部２に接着部３を形成することができる。また、接着する際、より自己発熱を生じさせるため、加工金型２０を加熱してもよい。 FIG. 6 is a schematic diagram for explaining adhesion by shearing and compression in the thickness direction. And Fig.6 (a) shows the cross section about the aspect by which the folding | returning part 2 is a double structure, for example. The processing mold 20 having alternately the shearing processing section 21 and the compression processing section 22 shown in FIG. 7 is lowered and pressed against the folding section 2, and the folding processing section 21 turns the folding section 20 as shown in FIG. 6B. 2 and each side film of the side film are cut (sheared), and at the same time, the layers are compressed by the compression processing unit 22 as shown in FIG. As a result, the shearing portion 21 of the processing mold 20 is cut to generate frictional heat on the cutting surfaces of the respective layers in the vicinity thereof, and the compression of the compression processing portion 22 causes self-heating such as internally generated heat of the resin film. Arise. Next, as shown in FIGS. 6 (c) and 6 (c '), the working die 20 is rapidly raised, and the shearing section 21 further causes self-heating on the cut surfaces of the layers, so that the tomographic surfaces of the layers are The interface is melted and bonded. Thus, by using the processing mold 20 that simultaneously performs shearing and compression, the bonding portion 3 can be formed on the folded portion 2 without opening a hole in the pouch. Further, when bonding, the processing mold 20 may be heated in order to generate more self-heating.
尚、前述した剪断は、接着部３となる折り返し部２を厚み方向に完全に切断し、折り返し部２と接触する側面樹脂フィルムも完全に切断し、他方の側面樹脂フィルムを部分的に切断する（図６（ｂ）参照）。また、加工金型２０は、剪断加工部２１の隣に圧縮加工部２２を有しているので、パウチの樹脂フィルムを剪断しすぎて孔をあけることを防止することができる（図６（ｂ´）参照）。また、こうして得られる接着部３は強固に接着しており、把持したときに高い強度をパウチに付与する。 The above-described shearing completely cuts the folded portion 2 that becomes the adhesive portion 3 in the thickness direction, completely cuts the side resin film in contact with the folded portion 2, and partially cuts the other side resin film. (See FIG. 6 (b)). Moreover, since the processing mold 20 has the compression processing part 22 next to the shearing part 21, it is possible to prevent the resin film of the pouch from being excessively sheared and making holes (FIG. 6B). reference). Further, the bonded portion 3 obtained in this way is firmly bonded, and imparts high strength to the pouch when gripped.
一方、前述した圧縮は、接着部３となる部分の樹脂フィルムの総厚み（折り返し部２と２枚の側面フィルムの総厚み）の２／３以上を厚み方向に圧縮し、その際に樹脂フィルムに自己発熱が生じる。そのメカニズムは必ずしも明らかではないが、以下のように推測される。即ち、加工金型２０の圧縮加工部２２によって、接着部３となる部分を厚み方向に圧縮すると、接着部３の平面形状に応じた面接触状態で高圧が作用し、加工金型２０と折り返し部２との接触界面で摩擦熱が生じ、また、加工金型２０の圧縮加工部２２から加えられる応力により、各樹脂層の内部、接触界面などに自己発熱を生じる。 On the other hand, in the above-described compression, 2/3 or more of the total thickness of the resin film (the total thickness of the folded portion 2 and the two side films) of the portion that becomes the adhesive portion 3 is compressed in the thickness direction. Self-heating occurs. The mechanism is not necessarily clear, but is presumed as follows. That is, when the portion to be the bonding portion 3 is compressed in the thickness direction by the compression processing portion 22 of the processing mold 20, a high pressure is applied in a surface contact state according to the planar shape of the bonding portion 3, and the processing mold 20 is folded back. Frictional heat is generated at the contact interface with the part 2, and self-heating is generated in the inside of each resin layer, the contact interface, and the like due to stress applied from the compression processed part 22 of the processing mold 20.
これらの剪断と圧縮を行う装置としては、例えば、上下動する上部テーブルに加工金型２０を装着したプレス加工装置や、或いは一対の回転ロールの一方に加工金型２０を装着した回転ロール加工装置を用いることができる。しかしながら、急速に厚み方向に剪断と圧縮をし、その後、加工金型２０を急速に上昇させることが可能なプレス加工装置を採用することが好ましい。尚、ここでは、剪断と圧縮を別部位で行う加工金型２０を用いて接着する方法を説明したが、剪断加工部２１と圧縮加工部２２を別に設けず、リング上の加工部を設けた加工金型２０にて、加工部により圧縮し、その後剪断して接着するようにしてもよい。 As an apparatus for performing such shearing and compression, for example, a press working apparatus in which the working die 20 is mounted on an upper table that moves up and down, or a rotating roll processing apparatus in which the working mold 20 is mounted on one of a pair of rotating rolls. Can be used. However, it is preferable to employ a press working apparatus that can rapidly shear and compress in the thickness direction and then raise the working mold 20 rapidly. In addition, although the method to adhere | attach using the process metal mold | die 20 which performs a shear and compression in another site | part was demonstrated here, the process part on a ring was provided without providing the shear process part 21 and the compression process part 22 separately. The processed mold 20 may be compressed by the processed portion and then sheared and bonded.
尚、加工金型２０における剪断加工部２１と圧縮加工部２２の配置は、図７に示すように等間隔としてもよいし、或いは、ランダムにしてもよい。また、剪断加工部２１と圧縮加工部２２の数は、パウチの大きさや種類、積層フィルム１の材質等に応じて適宜決定すればよい。 In addition, the arrangement | positioning of the shearing process part 21 and the compression process part 22 in the process metal mold | die 20 may be made into equal intervals, as shown in FIG. 7, or may be made random. Further, the number of the shearing processing portions 21 and the compression processing portions 22 may be appropriately determined according to the size and type of the pouch, the material of the laminated film 1 and the like.
本発明のパウチは、折り返し部が把持部となっているので、片手で容易に把持し、傾けて内容物を注出することができ、洗剤やシャンプー等の日用品や、調味料等の食料品に好適に使用することができる。 The pouch of the present invention has a folded portion as a gripping portion, so that it can be easily gripped with one hand and tilted to pour out the contents, daily products such as detergents and shampoos, and foodstuffs such as seasonings Can be suitably used.
１ ：パウチ
２ ：折り返し部
３ ：接着部
４ ：把持部
５ ：注出口
６ ：サイドシール部
７ ：第１折り曲げ線
８ ：第２折り曲げ線
２０：加工金型
２１：剪断加工部
２２：圧縮加工部
DESCRIPTION OF SYMBOLS 1: Pouch 2: Folding part 3: Adhesion part 4: Holding part 5: Spout 6: Side seal part 7: 1st bending line 8: 2nd bending line 20: Processing metal mold 21: Shearing process part 22: Compression processing Part
Claims (6)
前記折り返し部を部分的に接着して接着部を形成し、該接着部の下方の折り返し部を把持部としたことを特徴とするパウチ。 A pouch made of a resin film having a folded portion folded along a folding line along the side seal portion,
A pouch characterized in that the folded portion is partially bonded to form an bonded portion, and the folded portion below the bonded portion is used as a gripping portion.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2014157986A JP6379823B2 (en) | 2014-08-01 | 2014-08-01 | Pouch |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2014157986A JP6379823B2 (en) | 2014-08-01 | 2014-08-01 | Pouch |
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| Publication Number | Publication Date |
|---|---|
| JP2016034837A true JP2016034837A (en) | 2016-03-17 |
| JP6379823B2 JP6379823B2 (en) | 2018-08-29 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11257581A (en) * | 1998-03-13 | 1999-09-21 | Sanyo Electric Co Ltd | Recyclable vacuum thermal insulation material and manufacture thereof |
| JP2002179094A (en) * | 2000-12-15 | 2002-06-26 | Toyo Seikan Kaisha Ltd | Pouch with handle |
| JP2003040287A (en) * | 2001-07-31 | 2003-02-13 | Yoshino Kogyosho Co Ltd | Pouch |
| WO2008001829A1 (en) * | 2006-06-30 | 2008-01-03 | Toyo Seikan Kaisha, Ltd. | Pouch container |
-
2014
- 2014-08-01 JP JP2014157986A patent/JP6379823B2/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11257581A (en) * | 1998-03-13 | 1999-09-21 | Sanyo Electric Co Ltd | Recyclable vacuum thermal insulation material and manufacture thereof |
| JP2002179094A (en) * | 2000-12-15 | 2002-06-26 | Toyo Seikan Kaisha Ltd | Pouch with handle |
| JP2003040287A (en) * | 2001-07-31 | 2003-02-13 | Yoshino Kogyosho Co Ltd | Pouch |
| WO2008001829A1 (en) * | 2006-06-30 | 2008-01-03 | Toyo Seikan Kaisha, Ltd. | Pouch container |
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