JP2017007732A

JP2017007732A - Packing bag

Info

Publication number: JP2017007732A
Application number: JP2015128401A
Authority: JP
Inventors: 猪又　暢之; Nobuyuki Inomata; 暢之猪又; 亮一滝田; Ryoichi Takita; 野口　裕雄; Hiroo Noguchi; 野口　　裕雄
Original assignee: Toppan Printing Co Ltd
Current assignee: Toppan Inc
Priority date: 2015-06-26
Filing date: 2015-06-26
Publication date: 2017-01-12

Abstract

PROBLEM TO BE SOLVED: To provide an inexpensive packing bag of high mass productivity, hardly decomposed such as the deterioration of the content, by restraining volatilization and the outflow of the content such as liquid, powder and a grain and the inflow of moisture, air an insect of an external part, in the packing bag capable of opening-closing the packing bag in a single operation, without largely changing a manufacturing line of a conventional packing bag.SOLUTION: A packing bag (100) is formed by fusing the periphery by joining obverse-reverse films, and the packing bag comprises a sandwiching tab (5) having an injection port (3) projected from an end part, having the length of exceeding both left-right ends of the injection port on both outside obverse-reverse surfaces of an injection port bottom and having a sandwiching part having springiness, and can open and close the injection port when obverse-reverse films for shaping the injection port bottom closes or separates by following up the sandwiching tab when changing both end widths of the sandwiching tab, by connecting both left-right end parts of the sandwiching tab provided on the obverse-reverse.SELECTED DRAWING: Figure 1

Description

本発明は、包装袋に関するものである。更に詳しくは再封機能を有する包装袋に関するものである。 The present invention relates to a packaging bag. More specifically, the present invention relates to a packaging bag having a reseal function.

シャンプー、リンス、ボディソープ、液体洗剤、柔軟剤に代表されるトイレタリー製品などの液体内容物を収納する包装袋、パンやクッキー、飴、チョコレート菓子などの包装袋、砂糖、塩、胡麻、コーヒー、ココアパウダー、調味料などの粉体や粒体を収納する包装袋などがあるが、通常の包装袋は開封後、再封することが出来ない。 Packaging bags for storing liquid contents such as shampoos, rinses, body soaps, liquid detergents, toiletries represented by softeners, packaging bags for bread, cookies, strawberries, chocolate confectionery, sugar, salt, sesame, coffee, There are packaging bags for storing powders and granules such as cocoa powder and seasonings, but normal packaging bags cannot be resealed after opening.

これを解決するために、色々な改良が行われている。例えば包装袋に注出路を設けて、注出路の先端にスクリューキャップ付きスパウトを設け、再封出来るようにしたものがある。
しかしながら、この方法は、内容物が液体に限られると共に、表裏のフィルム以外にキャップとスパウトなどの部材が必要で、これらを接着するための加工工程も必要となり、製造設備の改造にコストが掛かったり、これらの閉鎖用の特殊部材にコストがかかるので、内容物の付加価値が高く、数量の出る商品でないと採用しがたい問題があった。 Various improvements have been made to solve this problem. For example, there is a packaging bag provided with a pour-out path and a spout with a screw cap provided at the tip of the pour-out path so that it can be resealed.
However, in this method, the contents are limited to liquids, and members such as caps and spouts are required in addition to the front and back films, and a processing step for bonding them is also required. In addition, since these special members for closing are costly, there is a problem that the added value of the contents is high and it is difficult to adopt unless the product has a large quantity.

このような問題に対し、チャック式の方法がある。例えば、特許文献１では、
２枚の板状バネを密着するように組み付けて、その２枚の板状バネを外圧の無い状態で互いに密着して閉口状態を維持するようになすとともに、その２枚の板状バネの長手方向の両端を長手方向の中心側へ向って加圧したときに、その２枚の板状バネが湾曲して中間部を互いに離間することにより開口するようになし、さらに、その加圧を解除したときに再び２枚の板状バネが密着状態へ復元するようになした開閉具を構成して、その開閉具を袋本体の内容物取出口に取り付けたことを特徴とする包装用袋を提案している。 There is a chuck method for such a problem. For example, in Patent Document 1,
The two plate springs are assembled so as to be in close contact, and the two plate springs are in close contact with each other in the absence of external pressure so as to maintain a closed state, and the length of the two plate springs is When both ends in the direction are pressed toward the center in the longitudinal direction, the two plate springs are bent so that the middle part is opened by separating from each other, and the pressure is released. A packaging bag characterized by comprising an opening / closing device in which the two plate springs are restored to the close contact state again when attached to the contents outlet of the bag body. is suggesting.

しかしながら、このような包装用袋では、内部に特殊な板状バネを組み合わせて挿入した構造にしているので、包装用袋の製造ラインを大幅に改造する必要がある。 However, since such a packaging bag has a structure in which a special plate-like spring is inserted in combination, it is necessary to significantly modify the packaging bag production line.

また、特許文献２では、
袋体と、この袋体の内部に収容された口部開閉手段とからなり、前記口部開閉手段は、前記袋体の内部の両側辺及び底辺に沿うように略コの字形に形成された棒状体であって、
前記両側辺に沿った平行部が下端を支点として拡開しようとする弾発性を有する合成樹脂製の弾発部材と、前記袋体の上端に沿って設けられ、両端がそれぞれ前記弾発部材の平行部の上端に枢着されるとともに外面が前記袋体の内面に接着され、互いに重なり合った前後一対の合成樹脂製の板バネと、からなり、
前記平行部の上端には、前記板バネの端部を枢着するための縮径部が形成され、該縮径部の長さは前記板バネの縦幅に等しくなっており、
前記板バネの両側を内方に押圧すると、前記板バネがそれぞれ外方に湾曲して前記袋体の口部が開き、押圧力を解除すると、前記板バネが元の状態に戻って前記口部が閉じるようにしたことを特徴とするワンタッチ開閉式包装用袋を提案している。 In Patent Document 2,
It comprises a bag body and a mouth opening / closing means accommodated inside the bag body, and the mouth opening / closing means is formed in a substantially U-shape so as to follow both sides and the bottom side of the inside of the bag body. A rod-shaped body,
The elastic part made of a synthetic resin having elasticity with which the parallel part along the both sides is to be expanded with the lower end as a fulcrum, and the upper end of the bag body are provided, and both ends of the elastic member And a pair of front and rear synthetic resin leaf springs that are pivotally attached to the upper end of the parallel portion and bonded to the inner surface of the bag body and overlap each other,
At the upper end of the parallel part, a reduced diameter part for pivotally attaching the end part of the leaf spring is formed, and the length of the reduced diameter part is equal to the vertical width of the leaf spring,
When both sides of the leaf spring are pressed inward, the leaf springs are curved outward, the mouth of the bag body is opened, and when the pressing force is released, the leaf spring returns to its original state and the mouth A one-touch opening / closing type packaging bag is proposed, characterized in that the part is closed.

しかしながら、このワンタッチ開閉式包装用袋も、特殊な口部開閉手段を袋の内部に挿入しておく必要があり、自動化しにくい。そればかりか、内容物の充填がしにくいといった量産性に大きな問題があり、コストも非常に高くなるなどの問題があった。 However, this one-touch opening / closing type packaging bag also requires special mouth opening / closing means to be inserted into the bag, and is difficult to automate. In addition, there is a big problem in mass productivity such as difficulty in filling the contents, and there is a problem that the cost becomes very high.

公知文献を以下に示す。 Known documents are shown below.

特開２００４−２６２７５号公報JP 2004-26275 A 特許第３７６１２４４号公報Japanese Patent No. 3761244

そこで、従来の包装袋の製造ラインを大幅に変更せずに、包装袋をワンタッチで開閉可能である包装袋であって、液体や粉体、粒体などの内容物が揮発や流出したり、外部の湿気や空気、虫などの流入を抑えて、内容物の劣化などの変質しにくく、安価で量産性の高い包装袋を提供することが、本発明の課題である。 Therefore, it is a packaging bag that can be opened and closed with one touch without greatly changing the conventional production line of packaging bags, and contents such as liquids, powders and granules volatilize or flow out, It is an object of the present invention to provide an inexpensive and highly productive packaging bag that suppresses the inflow of external moisture, air, insects, and the like, is unlikely to deteriorate due to deterioration of contents, and the like.

本発明は係る課題に鑑みなされたものであり、
表裏フィルムを合わせ、周囲を融着してなる包装袋であって、
端部から突き出た注出口を有し、
注出口根元の外側表裏両面に、注出口の左右両端を越えた長さを有し、バネ性を備えた狭持部を有する狭持タブを備え、
前記表裏に備えた狭持タブの左右両端部が繋止し、
狭持タブの両端幅を変化させると、注出口根元を形作る表裏のフィルムが、狭持タブに追随して閉鎖、あるいは、離反することによって、
注出口を開閉可能としたことを特徴とする包装袋である。 This invention is made in view of the subject which concerns,
It is a packaging bag made by combining front and back films and fusing the surroundings,
Having a spout protruding from the end,
On both the outer front and back sides of the spout root, it has a length beyond the left and right ends of the spout, and has a pinching tab having a pinching portion with springiness,
The left and right ends of the holding tabs provided on the front and back are locked,
By changing the width of both ends of the holding tab, the front and back films forming the base of the spout are closed or separated following the holding tab,
A packaging bag characterized in that the spout can be opened and closed.

本発明の包装袋は、端部に突き出た注出部を有する包装袋であって、注出口根元の外側表裏両面に、左右両端部が繋止した板バネを注出口の幅を越えた長さを有する板バネを備えている。
従って、包装袋の生産は通常の生産ラインを使用可能である。しかも、内容物の充填ラインも大きな変更無しで使用できるので、生産性が高く、安価に製造可能である。
そして、単に板バネの両端幅を変化させるだけで、ワンタッチで注出口は開閉可能である。
その為、片手で確実に開閉可能なので、粉体や粒体の内容物でも、注出しやすい。
また、単に包装袋から手を離すだけで、注出口は閉鎖するので、外部の湿気や空気、虫などの流入を抑えて、内容物の劣化、変質が発生しにくい。 The packaging bag of the present invention is a packaging bag having a pour-out portion protruding at the end, and is a length that exceeds the width of the spout with leaf springs that are secured to both the outer front and back surfaces of the spout root at both left and right ends. A leaf spring having a thickness is provided.
Therefore, a normal production line can be used for the production of packaging bags. In addition, the filling line of the contents can be used without major changes, so that the productivity is high and it can be manufactured at a low cost.
Then, the spout can be opened and closed with a single touch by simply changing the width of both ends of the leaf spring.
For this reason, it can be opened and closed with one hand, so it is easy to pour powder and granule contents.
Moreover, since the spout is closed simply by removing the hand from the packaging bag, inflow of external moisture, air, insects, and the like is suppressed, and the contents are hardly deteriorated or altered.

さらに、本発明は、包装袋が２軸延伸フィルムを含む積層シートで構成されているので、腰があり、その剛性から、注出部が折れ曲がりにくく、確実に表裏フィルムが密着して閉鎖可能である。 Furthermore, since the packaging bag is composed of a laminated sheet including a biaxially stretched film, the present invention has a waist, and its rigidity makes it difficult for the pouring portion to be bent, and the front and back films can be securely closed and closed. is there.

本発明の包装袋の一例で、その開封前の包装袋における正面図と、注出口近傍の断面図である。It is an example of the packaging bag of this invention, and is the front view in the packaging bag before the opening, and sectional drawing of the spout vicinity. 本発明の包装袋の一例で、注出口の開封後、再封鎖した包装袋における正面図と、注出口近傍の断面図である。It is an example of the packaging bag of this invention, and is the front view in the packaging bag which was resealed after opening a spout, and sectional drawing of the spout vicinity. 本発明の包装袋の一例で、開封した注出口を、注出する為、狭持タブを歪ませて、広げた状態を示す正面図と、注出口近傍の断面図である。In the example of the packaging bag of this invention, in order to pour out the opened spout, it is the front view which shows the state which distorted and extended the pinching tab, and sectional drawing of a spout vicinity. 本発明に使用する狭持タブの閉じている状態と、左右両端を押して歪ませ、開口させる状態の狭持タブを示す斜視図である。It is a perspective view which shows the state which the pinching tab used for this invention is closed, and the pinching tab of the state which is distorted by pushing both right and left ends. 本発明に使用する狭持タブの左右両端を押して歪ませ、開口させる状態の狭持タブと包装袋注出口を示す断面図である。It is sectional drawing which shows the pinching tab and packaging bag spout of the state which pushes the right and left both ends of the pinching tab used for this invention, and makes it distort and open. 本発明の包装袋の他の一例で、開封前の包装袋の注出口近傍の正面図と、それに使用する狭持タブを示す図である。It is another example of the packaging bag of this invention, and is a figure which shows the front view of the spout vicinity of the packaging bag before opening, and the pinching tab used for it. 本発明の包装袋における他の一例を示す正面図である。It is a front view which shows another example in the packaging bag of this invention.

以下、本発明について、図を用いて説明する。
図１−１は、本発明の包装袋１００の一例で、その開封前の包装袋における正面図である。
包装袋１００は、表フィルム１と裏フィルム１０を合わせ、４辺をシールした袋であり、この図では、下方に底板２を設けたスタンディングパウチにしている。 The present invention will be described below with reference to the drawings.
FIG. 1-1 is an example of the packaging bag 100 of the present invention, and is a front view of the packaging bag before opening.
The packaging bag 100 is a bag in which the front film 1 and the back film 10 are combined and the four sides are sealed. In this figure, the packaging pouch 100 is a standing pouch provided with a bottom plate 2 below.

包装袋１００上側の一角に斜めの斜辺シール部１５を設け、その一部から飛び出して注出口３を設けた。
注出口３は、斜辺シール部１５にほぼ垂直に外側に伸び、その外側に平行に注出口を形成する注出シール部３３が左右に走り、その間が流路３００になっている。さらに、注出シール部３３の先に、注出タブ３０が設けられ、つかみ易い面積を持った引き裂き用のタブにしている。 An oblique hypotenuse seal portion 15 is provided at one corner on the upper side of the packaging bag 100, and a spout 3 is provided by protruding from a part thereof.
The spout 3 extends outward substantially perpendicular to the hypotenuse seal portion 15, and a spout seal portion 33 that forms a spout parallel to the outside of the spout 3 runs to the left and right. Further, a dispensing tab 30 is provided at the tip of the dispensing seal portion 33, which is a tearing tab having an area that is easy to grasp.

注出タブ３０近傍の注出シール部３３には、切り欠き３１を設け、切り欠き３１をきっかけに注出口３を引き裂けば開口できるようにしている。図１で示すように、流路３００に垂直に、切り欠き３１から脆弱線３２を設けていても良い。
注出口３の根元の傾斜シール部１５近傍の外側表裏にかけて覆い、狭持タブ５が注出口３の根元を挟むように設けられている。
狭持タブ５は、表裏共、注出口３の左右両端を越えた長さを有し、注出口の左右両端を越えた位置に繋止部５３を設け、狭持タブの表裏は繋止部５３によって繋がっている。
また、狭持タブ５は、弾性のある材料で作られ、注出部根元の左右の包装袋の表フィルム１あるいは裏フィルム１０に固定する固定部５２を設け、狭持タブ５の中央には包装袋注出口３の根元を挟む狭持部５１が設けられている。
狭持タブの固定部５２は、両面テープやホットメルト接着剤などの接着材で固定されている。 A notch 31 is provided in the pouring seal portion 33 in the vicinity of the pouring tab 30 so that the opening 3 can be opened by tearing the pouring port 3 triggered by the notch 31. As shown in FIG. 1, a weak line 32 may be provided from the notch 31 perpendicular to the flow path 300.
Covering the outer front and back of the base of the spout 3 near the inclined seal portion 15, a pinching tab 5 is provided so as to sandwich the base of the spout 3.
The holding tab 5 has a length that extends beyond both the left and right ends of the spout 3 on both the front and back sides, and is provided with a locking portion 53 at a position that extends beyond both the left and right ends of the spout. 53 are connected.
Further, the holding tab 5 is made of an elastic material, and is provided with a fixing portion 52 that is fixed to the front film 1 or the back film 10 of the left and right packaging bags at the base of the pouring portion. A holding part 51 is provided to sandwich the root of the packaging bag outlet 3.
The fixing portion 52 of the holding tab is fixed with an adhesive such as a double-sided tape or a hot melt adhesive.

図１−２は、図１−１の包装袋１００におけるＸ−Ｘ断面で、開封前の包装袋注出口近傍における、流路３００の流れ方向に平行で、かつ、表フィルム１と裏フィルム１０に垂直な面で切断した断面図である。
狭持タブ５は、表タブと裏タブとが反発しあうように作られた弾性体で、左右の上端で繋止している。その為、狭持タブ５は、注出口の表フィルム１と裏フィルム１０とを挟んで、流路３００を閉鎖できる。 1-2 is an XX cross section in the packaging bag 100 of FIG. 1-1, is parallel to the flow direction of the flow path 300 in the vicinity of the packaging bag outlet before opening, and the front film 1 and the back film 10. It is sectional drawing cut | disconnected by the surface perpendicular | vertical to.
The holding tab 5 is an elastic body made so that the front tab and the back tab repel each other, and is fixed at the upper left and right ends. Therefore, the pinching tab 5 can close the flow path 300 with the front film 1 and the back film 10 of the spout interposed therebetween.

図１−３は、図１−１の包装袋１００におけるＹ−Ｙ断面で、開封前の包装袋注出口近傍における流路３００の流れ方向に垂直な面で切断した断面図である。
狭持タブ５の狭持部５１は、表フィルム１側のみ接着材５４によって包装袋の注出口３根元と固定されている。この状態では、狭持タブ５が、包装袋の表フィルム１に沿っているので、流路３００の隙間は閉鎖されている。 1-3 is a cross-sectional view taken along a plane perpendicular to the flow direction of the flow path 300 in the vicinity of the packaging bag outlet before opening, in the YY cross section of the packaging bag 100 of FIG. 1-1.
The pinching portion 51 of the pinching tab 5 is fixed to the base of the spout 3 of the packaging bag by the adhesive 54 only on the front film 1 side. In this state, since the holding tab 5 is along the surface film 1 of the packaging bag, the gap of the flow path 300 is closed.

図２−１は、本発明の包装袋１００の一例で、図１の包装袋の注出口３を開封したが、注出口流路３００は閉鎖している状態を示す正面図である。
開封時には、注出タブ３０を流路に対して直角に、切り欠き３１から脆弱線３２に沿って切り裂いて、注出タブ３０を包装袋１００から切り離して、開封させる。
注出タブ３０が無くなっても、開封した注出部３は、狭持タブ５の狭持部５１を開口させ
ない限り、流路３００は表裏の狭持部５１によって閉鎖されている。 FIG. 2-1 is an example of the packaging bag 100 of the present invention, and is a front view showing a state where the spout 3 of the packaging bag of FIG. 1 is opened but the spout channel 300 is closed.
At the time of opening, the extraction tab 30 is cut at a right angle to the flow path from the notch 31 along the line of weakness 32, and the extraction tab 30 is separated from the packaging bag 100 and opened.
Even if the dispensing tab 30 disappears, the channel 300 is closed by the holding portions 51 on the front and back sides of the opened extraction portion 3 unless the holding portion 51 of the holding tab 5 is opened.

図２−２は、図２−１の包装袋におけるＸ−Ｘ断面で切断した断面図で、狭持タブ５の狭持部が表フィルム１に固定されている状態を示している。
注出部３は、狭持タブ５の表狭持部５１１と裏狭持部５１２との隙間に挟まった状態で挿入されている。
繋止部５３によって、表狭持部５１１と裏狭持部５１２とは、弾性力を持って、互いに押し合うようにして、注出口を挟み、流路３００を閉鎖している。 FIG. 2B is a cross-sectional view taken along the line XX in the packaging bag of FIG. 2A, and shows a state where the holding portion of the holding tab 5 is fixed to the surface film 1.
The pouring part 3 is inserted in a state of being sandwiched in a gap between the front holding part 511 and the back holding part 512 of the holding tab 5.
By means of the locking part 53, the front holding part 511 and the back holding part 512 are elastically pressed against each other so as to sandwich the spout and close the flow path 300.

図２−３は、図２−１の包装袋におけるＹ−Ｙ断面で切断した断面図である。
狭持タブ５の表フィルム側が、接着材５４で表フィルム１と接着している。そして、繋止部５３で折り曲げられた状態で表狭持部５１１と裏狭持部５１２が繋がり、かつ、表狭持部５１１と裏狭持部５１２が押し合っている隙間に、注出口が挿入されていて、流路３００を閉鎖している。
このように、注出口は、注出タブの削除で開口された状態で、その根元はバネ性を有する狭持部５１によって閉鎖可能になっている。 FIG. 2-3 is a cross-sectional view taken along the line YY in the packaging bag of FIG.
The front film side of the holding tab 5 is bonded to the front film 1 with an adhesive 54. The spout is inserted into the gap where the front holding portion 511 and the back holding portion 512 are connected in a state where the holding portion 53 is bent, and the front holding portion 511 and the back holding portion 512 are pressed against each other. It is inserted and the flow path 300 is closed.
Thus, the spout is opened by the removal of the spout tab, and its root can be closed by the holding portion 51 having a spring property.

図３−１は、本発明の包装袋１００の一例で、図１の包装袋を開封後、開封した注出口３から内容物を注出しやすいように、狭持タブ５を歪ませて、注出口を広げた状態を示す正面図である。
狭持タブ５の左右両端の凹部５５を押すことによって、互いに押し合っていた表裏の狭持部５１が、外側に歪んで隙間を大きく広げる。この凹部５５は、どうしても必要な形状ではないが、凹部があると、簡単に容器全体をつかみ上げることもできるし、凹部を使用して左右から狭持リブ５を圧縮すると、狭持リブ５は歪んで弓なりに変形する。 FIG. 3A is an example of the packaging bag 100 of the present invention. After opening the packaging bag of FIG. 1, the holding tab 5 is distorted so that the contents can be easily poured out from the opened spout 3. It is a front view which shows the state which extended the exit.
By pressing the recesses 55 at both the left and right ends of the holding tab 5, the front and back holding portions 51 that have been pressed against each other are distorted outward and the gap is greatly widened. The concave portion 55 is not necessarily in a necessary shape, but if there is a concave portion, the entire container can be easily grasped, and if the concave rib 5 is compressed from the left and right using the concave portion, the sandwiching rib 5 is Distorted and deformed into a bow.

図３−２は、図３−１のＹ−Ｙで切断された断面図で、開封した注出口３から内容物を注出しやすいように、狭持タブ５を歪ませた状態を示す注出口近傍の断面図である。
左右から狭持リブ５を圧縮すると、狭持タブ５は歪んで、表狭持部５１１と裏狭持部５１２は、互いに弓なりに変形する。しかし、表狭持部５１１と裏狭持部５１２は、左右両端で繋止しているので、互いに反対の方向に弓なりに変形し、挟んでいた隙間を大きく広げる。
この時、接着された表フィルム１は狭持部の形状に沿って大きな半径に曲げられる。しかし、注出口の裏フィルム１０は、両端が表フィルムに融着されており、裏フィルムの注出口を形成する長さが表フィルムに対して余ってしまう。その為、その裏フィルムの余った長さの分は、反対側に反って、表フィルムとは離れるように反るように変形し、結果的に、注出口の流路３００を広げ、注出口３を開封する。
このようにして、内容物を注出する時に、狭持タブ５を変形させる量を調整することによって、開口量を変化することが出来るので、注出速度を調整できる。 FIG. 3-2 is a cross-sectional view taken along YY in FIG. 3A and shows a spout in which the holding tab 5 is distorted so that the contents can be easily poured out from the opened spout 3. It is sectional drawing of the vicinity.
When the sandwiching rib 5 is compressed from the left and right, the sandwiching tab 5 is distorted, and the front sandwiching portion 511 and the back sandwiching portion 512 are deformed into a bow shape. However, since the front holding portion 511 and the back holding portion 512 are locked at both left and right ends, they are deformed like a bow in opposite directions to greatly widen the sandwiched gap.
At this time, the adhered front film 1 is bent to a large radius along the shape of the holding portion. However, both ends of the back film 10 of the spout are fused to the front film, and the length for forming the spout of the back film is left with respect to the front film. Therefore, the extra length of the back film is warped to the opposite side and deformed to warp away from the front film. As a result, the flow path 300 of the spout is widened, and the spout 3 is opened.
In this way, when the contents are poured out, the opening amount can be changed by adjusting the amount by which the holding tab 5 is deformed, so that the dispensing speed can be adjusted.

図４−１は、本発明に使用する狭持タブ単体の閉じている状態を斜視図で示したものである。
左右・表裏にそれぞれ固定部５２があり、固定部５２の一端は、表裏が繋止部５３によって繋止されている。
表の左右固定部５２と裏の左右固定部５２は、それぞれ、狭持部５１があって繋がっている。そして、表狭持部５１１と裏狭持部５１２は狭い隙間５０を有している。
隙間５０には、注出口の厚みよりも狭くして、常態では注出口を挟んで、閉じるように設定されている。 FIG. 4-1 is a perspective view showing a closed state of a single holding tab used in the present invention.
There are fixing portions 52 on the left and right and front and back, respectively, and one end of the fixing portion 52 is locked by a locking portion 53 on the front and back.
The front left and right fixing parts 52 and the back left and right fixing parts 52 are connected to each other by a holding part 51. The front holding portion 511 and the back holding portion 512 have a narrow gap 50.
The gap 50 is set so as to be narrower than the thickness of the spout and to be closed with the spout sandwiched in the normal state.

繋止部５３は、狭持タブ５の表裏狭持部左右の固定部５２における注出側端部に繋止部５３を設け、一体としたものが好ましい。
繋止部５３を左右の端部に設けてもかまわないが、凹部５５を設けにくくなると共に、流路を完全に閉鎖しにくい問題が発生し易い。左右端部に繋止部５３を設ける場合、注出口の注出シール部のシール断面形状や、狭持部５１の内側隙間形状に工夫を加える必要があり、製造の収率に不安が残り易い。 It is preferable that the locking portion 53 is provided integrally with the locking portion 53 at the extraction side end portion of the fixing portion 52 on the left and right holding portions on the front and back sides of the holding tab 5.
Although the locking part 53 may be provided at the left and right end parts, it is difficult to provide the concave part 55 and a problem that it is difficult to completely close the flow path is likely to occur. When the locking portions 53 are provided at the left and right end portions, it is necessary to devise a seal cross-sectional shape of the spout seal portion of the spout and an inner clearance shape of the holding portion 51, and anxiety tends to remain in the manufacturing yield. .

図４−２は、本発明に使用する狭持タブ５の左右両端凹部５５を押して歪ませ、開口させる状態の狭持タブ５を示す斜視図である。
凹部５５を左右から押して、固定部５２同士が近づくと、狭持部５１が歪んで弓なりに変形する。表狭持部５１１と裏狭持部５１２はそれぞれ、内側には注出口があって、内側に膨らむようには反ることができないので、図４−２のように、外側に膨らむように変形する。
この為、流路を形成する表フィルムや裏フィルムが狭持部５１などに接着していれば、狭持部５１の変形に合わせ、注出口の流路を開口させることが出来る。 FIG. 4-2 is a perspective view showing the holding tab 5 in a state in which the left and right concave portions 55 of the holding tab 5 used in the present invention are pushed and distorted to be opened.
When the concave portion 55 is pushed from the left and right and the fixing portions 52 approach each other, the holding portion 51 is distorted and deformed into a bow shape. Each of the front holding portion 511 and the back holding portion 512 has a spout on the inner side and cannot be warped so as to bulge inward, so that it deforms to bulge outward as shown in FIG. To do.
For this reason, if the front film and back film which form a flow path are adhere | attached on the clamping part 51 grade | etc., According to the deformation | transformation of the clamping part 51, the flow path of a spout can be opened.

図５は、本発明に使用する狭持タブの左右両端を押して歪ませ、開口させる状態の狭持タブと包装袋注出口根元近傍を示す断面図である。
図５−１は、図１で示した狭持タブ５の例で、表フィルム１側に接着材５４を全幅で設けた例である。
表フィルム１は、開口狭持部５１の変形形状に合わせて円弧状に変形する。
しかし、注出口３の両端がシールしている。その時、円周の外側より内側は短い為、内側になった裏フィルム１０側は、表フィルム１とは離れるように変形し、結果的に、注出口３は確実に開口する。
狭持タブ５の凹部を押すのを中止すれば、狭持部５１は平坦になり、かつ、裏狭持部５１２が表狭持部５１１に迫るように隙間を注出口厚み以下にするので、確実に注出口は閉鎖させることができる。
もちろん、接着材５４を表フィルム側ではなく、裏フィルム側に全幅で設けても良い。 FIG. 5 is a cross-sectional view showing the holding tab and the vicinity of the packaging bag spout root in a state where the left and right ends of the holding tab used in the present invention are pressed and distorted to open.
FIG. 5A is an example of the holding tab 5 shown in FIG. 1 and is an example in which the adhesive material 54 is provided with the full width on the surface film 1 side.
The front film 1 is deformed into an arc shape in accordance with the deformed shape of the opening holding portion 51.
However, both ends of the spout 3 are sealed. At that time, since the inner side is shorter than the outer side of the circumference, the inner side of the back film 10 is deformed so as to be separated from the front film 1, and as a result, the spout 3 is surely opened.
If the pressing of the concave portion of the holding tab 5 is stopped, the holding portion 51 becomes flat, and the gap is made smaller than the spout thickness so that the back holding portion 512 approaches the front holding portion 511. The spout can be reliably closed.
Of course, the adhesive 54 may be provided in the full width not on the front film side but on the back film side.

図５−２は、図１で示した狭持タブ５の変形例で、表フィルム１側に接着材５４を全幅で設け、かつ、裏フィルム１０の流路３００中央にも接着材５４を設けた例である。
裏狭持部の変形に合わせて裏フィルムが引き離されるので、図５−１よりも確実に注出口３が開口する。
狭持タブ５の凹部を押すのを中止すれば、狭持部５１は平坦になり、かつ、裏狭持部５１２が表狭持部５１１に迫るように隙間を注出口厚み以下にするので、確実に注出口は閉鎖させることができる。 FIG. 5B is a modification of the holding tab 5 shown in FIG. 1. The adhesive material 54 is provided with the full width on the front film 1 side, and the adhesive material 54 is also provided in the center of the flow path 300 of the back film 10. This is an example.
Since the back film is pulled away in accordance with the deformation of the back holding portion, the spout 3 opens more reliably than in FIG.
If the pressing of the concave portion of the holding tab 5 is stopped, the holding portion 51 becomes flat, and the gap is made smaller than the spout thickness so that the back holding portion 512 approaches the front holding portion 511. The spout can be reliably closed.

図５−３は、表フィルム１と裏フィルム１０の流路３００中央それぞれに、接着材５４を設けた例である。
この方法は、狭持部５１が表裏開いた時には、確実に流路３００の表フィルム１と裏フィルム１０が引き離されるので、注出口は開口できる。
それと共に、狭持部５１が表裏閉じた時には、確実に流路３００の表フィルム１と裏フィルム１０が押し付けられて、注出口を閉鎖できる。 FIG. 5C is an example in which an adhesive 54 is provided in each of the centers of the flow path 300 of the front film 1 and the back film 10.
In this method, when the holding portion 51 is opened front and back, the front film 1 and the back film 10 of the flow path 300 are surely separated from each other, so that the spout can be opened.
At the same time, when the nipping portion 51 is closed, the front film 1 and the back film 10 of the flow path 300 are surely pressed and the spout can be closed.

図５−４は、表フィルム１と裏フィルム１０の左右注出シール部に、それぞれの接着材５４を設けた例である。
この方法は、狭持部５１が表裏開いた時には、確実に流路３００の表フィルム１と裏フィルム１０が引き離されるので、注出口は開口できる。
それと共に、狭持部５１が表裏閉じた時には、確実に流路３００の表フィルム１と裏フィルム１０両端が引き伸ばされて閉鎖できると共に、表裏からも狭持部が押し付けられ、注出口を閉鎖させる。 FIG. 5-4 is an example in which the respective adhesive materials 54 are provided on the left and right extraction seal portions of the front film 1 and the back film 10.
In this method, when the holding portion 51 is opened front and back, the front film 1 and the back film 10 of the flow path 300 are surely separated from each other, so that the spout can be opened.
At the same time, when the holding portion 51 is closed front and back, both the front film 1 and the back film 10 of the flow path 300 can be reliably stretched and closed, and the holding portion is also pressed from the front and back to close the spout. .

図６は、本発明の包装袋の他の一例で、開封前の包装袋の注出口近傍の正面図と、それに使用する狭持タブを示す図である。
図６−１は、折り畳み式狭持タブ５を使用した包装袋の例で、繋止部がヒンジ繋止部５３０になっていて、注出口３とは爪部５６によって、物理的に固定する狭持タブを使用している。
包装袋の注出口根元近傍は、図６−２に示すように、融着部が広幅になって、注出口根元の左右には、それぞれに嵌合孔３６を設けている。
図６−３は、成形された状態でのヒンジ狭持タブを示した平面図で、表側の狭持タブと裏側の狭持タブが、左右のヒンジ繋止部５３０で繋がった形状になっている。
裏側固定部５２２の内折り側には、左右に爪部５６をそれぞれに設けている。
また、前記爪部５６に対応した表側固定部５２１に、爪穴部５６０を左右それぞれに設けている。もちろん、爪部５６を表側固定部５２１に設け、爪穴部５６０を裏側固定部５２２に設けて、上記とは爪部５６と爪穴部５６０を逆にしてもかまわない。
図６−４は、成形された状態でのヒンジ狭持タブを、表裏の固定部位置における断面図を示した。表側の狭持タブと裏側の狭持タブが、左右のヒンジ繋止部５３０で繋がった形状になっている。
図６−５は、ヒンジ繋止部５３０で折り曲げられた状態でのヒンジ狭持タブを、表裏の固定部位置における断面図を示した。表側固定部５２１と裏側固定部５２２が向かい合い、爪部５６が爪穴部５６０に挿入し、掛止している。
図６−６は、ヒンジ繋止部５３０で折り曲げ、ヒンジ狭持タブを注出口に掛止した状態で、左右の爪部５６を通る図６−１のＹ−Ｙ面における断面図を示した。
表側固定部５２１と裏側固定部５２２が向かい合い、爪部５６が嵌合孔３６と爪穴部５６０に挿入して掛止し、表裏の狭持部５１によって流路３００や注出シール部３３などの注出口根元が挟まれるように、閉鎖している。
このようにすれば、接着材無しで、嵌合によって狭持タブと注出口根元が掛止した状態でも、同じように狭持タブの効果を得ることが出来る。 FIG. 6 is a front view of the vicinity of the spout of the packaging bag before opening and a pinching tab used therefor as another example of the packaging bag of the present invention.
FIG. 6A is an example of a packaging bag using a foldable pinching tab 5, where the locking part is a hinge locking part 530 and is physically fixed to the spout 3 by a claw part 56. You are using a pinching tab.
As shown in FIG. 6B, in the vicinity of the outlet base of the packaging bag, the fusion part has a wide width, and fitting holes 36 are provided on the left and right sides of the outlet base.
FIG. 6-3 is a plan view showing the hinge holding tab in a molded state, where the front side holding tab and the back side holding tab are connected by the left and right hinge locking portions 530. Yes.
On the inner folding side of the back side fixing portion 522, claw portions 56 are respectively provided on the left and right.
In addition, claw hole portions 560 are provided on the left and right sides of the front side fixing portion 521 corresponding to the claw portion 56, respectively. Of course, the claw portion 56 may be provided in the front side fixing portion 521, the claw hole portion 560 may be provided in the back side fixing portion 522, and the claw portion 56 and the claw hole portion 560 may be reversed.
FIG. 6-4 is a cross-sectional view of the hinge holding tab in the molded state at the fixing portion positions on the front and back sides. The front side holding tab and the back side holding tab are connected by the left and right hinge locking portions 530.
6-5 showed sectional drawing in the fixing part position of the front and back of the hinge pinching tab in the state bent by the hinge locking part 530. FIG. The front side fixing part 521 and the back side fixing part 522 face each other, and the claw part 56 is inserted into the claw hole part 560 and latched.
6-6 shows a cross-sectional view in the YY plane of FIG. 6-1 passing through the left and right claw portions 56 in a state where the hinge holding portion 530 is bent and the hinge holding tab is hooked to the spout. .
The front side fixing part 521 and the back side fixing part 522 face each other, the claw part 56 is inserted into the fitting hole 36 and the claw hole part 560 and latched, and the flow path 300, the extraction seal part 33, etc. It is closed so that the base of the spout is pinched.
In this way, the effect of the holding tab can be obtained in the same manner even when the holding tab and the spout root are hooked by fitting without using an adhesive.

図７は、本発明の包装袋の他の一例で、注出口３が、容器の中心線上に設けられた例の正面図である。
上辺のシール部を左右に分けて傾斜させ、中央を注出口３としている。もちろん、上辺の左右のシール部の傾斜は、内容物を出し易くする作用効果があるが、傾斜させていなくても問題は無い。
さらに、スタンディングパウチのような底板がなく、一枚のフィルムを下辺側で折ってシーラント側を合わせて、単純な袋状に三方シールしたものである。
内容物の充填は、注出部３から管を挿入して充填し、充填後、注出タブ３０をシールする方法でも良いし、上辺シール部の片方から充填して、充填後シールしてもかまわない。
狭持タブ５は、後から接着することが出来る。 FIG. 7 is another example of the packaging bag of the present invention, and is a front view of an example in which the spout 3 is provided on the center line of the container.
The seal part on the upper side is inclined to the left and right, and the center is the spout 3. Of course, the inclination of the seal portions on the left and right sides of the upper side has the effect of facilitating taking out the contents, but there is no problem even if it is not inclined.
Further, there is no bottom plate like a standing pouch, and a single film is folded on the lower side and the sealant side is aligned, and is sealed in a simple bag shape on three sides.
The contents may be filled by inserting a tube from the pouring part 3 and filling it, and sealing the pouring tab 30 after filling, or filling from one side of the upper side seal part and sealing after filling. It doesn't matter.
The pinching tab 5 can be adhered later.

図７−２は、図７−１の包装袋１００の注出口近傍の形状が分かるようにした説明図で、注出口根元には、狭持タブ５の接着部５２が、しっかり固定できるように、狭持タブ５の形状に合わせた形状にすることが望ましい。 FIG. 7-2 is an explanatory diagram in which the shape in the vicinity of the spout of the packaging bag 100 of FIG. 7-1 can be understood, so that the adhesive portion 52 of the holding tab 5 can be firmly fixed at the base of the spout. It is desirable to make the shape in accordance with the shape of the holding tab 5.

本発明の包装袋は、以上のようなものであるが、包装袋１００に用いる表フィルム１や裏フィルム１０に使用される積層フィルムは、内容物やその保存条件などにもよるが、基材に２軸延伸フィルムを用いることが好ましい。
２軸延伸フィルムを基材に使用することで、バネのように弾性が生じ、狭い狭持タブの表狭持部と裏狭持部との隙間の中で、平面を保ち易くなり、その為注出口の開閉がスムーズで、着実にできる。
このような積層フィルムの構成としては、２軸延伸ポリエチレンテレフタレートフィルムと直鎖状低密度ポリエチレンフィルムを貼り合せた２層の積層フィルムが考えられる。
その他、２軸延伸ポリエチレンテレフタレート／２軸延伸ポリアミド／無水マレイン酸変性ポリエチレン／高圧法低密度ポリエチレン、
２軸延伸ポリエチレンテレフタレート／酸化珪素蒸着層／直鎖状低密度ポリエチレン、
２軸延伸ポリエチレンテレフタレート／低密度ポリエチレン／アルミ箔／直鎖状低密度ポリエチレン、等の構成が考えられる。 Although the packaging bag of the present invention is as described above, the laminated film used for the front film 1 and the back film 10 used for the packaging bag 100 depends on the contents and the storage conditions thereof, but the substrate It is preferable to use a biaxially stretched film.
By using a biaxially stretched film as a base material, elasticity occurs like a spring, and it becomes easier to maintain a flat surface in the gap between the front and rear holding parts of a narrow holding tab, The spout can be opened and closed smoothly and steadily.
As a configuration of such a laminated film, a two-layer laminated film in which a biaxially stretched polyethylene terephthalate film and a linear low density polyethylene film are bonded can be considered.
In addition, biaxially stretched polyethylene terephthalate / biaxially stretched polyamide / maleic anhydride modified polyethylene / high pressure method low density polyethylene,
Biaxially stretched polyethylene terephthalate / silicon oxide deposited layer / linear low density polyethylene,
A configuration such as biaxially stretched polyethylene terephthalate / low density polyethylene / aluminum foil / linear low density polyethylene can be considered.

狭持タブは、ポリプロピレン樹脂やポリオキシメチレン樹脂などの結晶性プラスチックを射出成形し、表狭持部５１１などの表側と、裏狭持部５１２などの裏側との間の駒から射出成形された狭持タブを抜き去ると、その内反り現象によって、内側に締まるように成形品が収縮変形することで、簡単に製造が可能である。もちろん、結晶性で無い樹脂であっても、締まる強度は小さいが、成形収縮によって、内側に締まるように成形することができる。
もちろん、プラスチックに限らず、バネ性を有するステンレス鋼など、金属製であっても竹と金属やプラスチックの複合素材であってもかまわない。
狭持タブと包装袋との間で注出口を挟み留める為、また、注出口を開口しやすくするために、アクリル樹脂のような剛性体ではなく、弾性体とする必要がある。
プラスチックの素材としては、中密度ポリエチレン、直鎖状低密度ポリエチレン、高密度ポリエチレン、ポリプロピレン、エチレン・ポリプロピレン共重合樹脂、ポリメチルペンテン、環状ポリオレフィン、アクリロ・ブタジエン・スチレン共重合体、アクリロ・スチレン共重合体などのスチレン系樹脂、その他、ポリオキシメチレン、ポリアミド、ポリカーボネート、ポリサルフォン、ポリエチレンテレフタレート、ポリメチレンテレフタレートなど汎用熱可塑性樹脂の他に、オレフィン系エラストマー、ポリエステル系エラストマー、などのエラストマーや、メラミン樹脂、フェノール樹脂などの熱硬化性樹脂であってもかまわないし、ガラス繊維などの繊維含有樹脂も、使用できる。
内容物が付着するので、内容物によって変質したり、劣化したりしにくい素材を選定して使用する。
また、厚みは、狭持タブのバネ性や内容物の粘度などによって、調整する。
さらに、狭持タブの大きさは、注出口の長さや狭持タブの曲げ弾性強度、包装袋の素材構成、内容物の粘度などによって、調整する。 The pinching tab was injection-molded from a piece between a front side such as the front pinching part 511 and a back side such as the back pinching part 512 by injection molding a crystalline plastic such as polypropylene resin or polyoxymethylene resin. When the pinching tab is removed, the molded product shrinks and deforms so as to be tightened inward due to the inward warping phenomenon, and thus it can be easily manufactured. Of course, even a non-crystalline resin has a small fastening strength, but can be molded so as to be fastened inside by molding shrinkage.
Of course, it is not limited to plastic, and may be made of metal such as stainless steel having spring properties or a composite material of bamboo and metal or plastic.
In order to pinch the spout between the holding tab and the packaging bag, and to make it easier to open the spout, it is necessary to use an elastic body instead of a rigid body such as an acrylic resin.
Plastic materials include medium density polyethylene, linear low density polyethylene, high density polyethylene, polypropylene, ethylene / polypropylene copolymer resin, polymethylpentene, cyclic polyolefin, acrylo / butadiene / styrene copolymer, acrylo / styrene copolymer. Styrene resins such as polymers, other general-purpose thermoplastic resins such as polyoxymethylene, polyamide, polycarbonate, polysulfone, polyethylene terephthalate, polymethylene terephthalate, elastomers such as olefin elastomers and polyester elastomers, and melamine resins Further, a thermosetting resin such as a phenol resin may be used, and a fiber-containing resin such as glass fiber can also be used.
Since the contents adhere, select and use materials that are unlikely to deteriorate or deteriorate depending on the contents.
The thickness is adjusted by the spring property of the holding tab and the viscosity of the contents.
Further, the size of the holding tab is adjusted by the length of the spout, the bending elastic strength of the holding tab, the material configuration of the packaging bag, the viscosity of the contents, and the like.

本発明の包装袋は以上のようなもので、注出タブを持って注出部を引き裂いて開口し、その開口した包装袋は、注出部根元に、流路を横切って表裏から、狭持タブの隙間に注出部根元を挟んで固定しており、単に狭持タブの左右の凹部を押すだけで、簡単に注出部を開口することができ、かつ、狭持タブから手を離すだけで、注出部を再閉鎖することができる。
また、包装袋に細長い注出部を設けるだけの形状変更と、単純で安価な狭持タブで注出部根元を挟んで固定部に接着等固定するだけで容易に本発明の包装袋にすることが出来る。この為、一般的な従来の生産ラインを使用可能で、安価に注出口を開閉可能にすることが出来るなど、本発明のメリットは大きい。 The packaging bag of the present invention is as described above, and has an extraction tab torn and opened the extraction portion. The opened packaging bag is narrowed from the front and back across the flow path at the base of the extraction portion. The base of the pouring part is sandwiched and fixed in the gap of the holding tab. By simply pressing the left and right recesses of the holding tab, the pouring part can be easily opened and the hand can be moved from the holding tab. The dispensing part can be reclosed simply by releasing it.
In addition, the packaging bag of the present invention can be easily formed by simply changing the shape of the packaging bag by simply providing a long and narrow pouring portion, and fixing the fixing portion to the fixing portion by sandwiching the base of the pouring portion with a simple and inexpensive holding tab. I can do it. For this reason, a general conventional production line can be used, and the spout can be opened and closed at a low cost.

１００・・・・包装袋
１・・・・・・表フィルム
１０・・・・・裏フィルム
１１・・・・・左辺
１２・・・・・右辺
１３・・・・・上辺
１４・・・・・下辺
１５・・・・・斜辺シール部
２・・・・・・底板
３・・・・・・注出口
３０・・・・・注出タブ
３００・・・・流路
３１・・・・・切り欠き
３２・・・・・脆弱線
３３・・・・・注出シール部
３６・・・・・嵌合孔
５・・・・・・狭持タブ
５０・・・・・隙間
５１・・・・・狭持部
５２・・・・・固定部
５２１・・・・表側固定部
５２２・・・・裏側固定部
５３・・・・・繋止部
５３０・・・・ヒンジ繋止部
５４・・・・・接着材
５５・・・・・凹部
５６・・・・・爪部
５６０・・・・爪穴部 100 ··· Packaging bag 1 ··· Front film 10 · · Back film 11 · · · Left side 12 · · · Right side 13 · · · Upper side 14 ···・ Lower side 15 ・ Slope side seal part 2 ・・・・・・ Bottom plate 3 ・・・・・・ Outlet 30... Notch 32 fragile wire 33 pouring seal 36 fitting hole 5 pinching tab 50 gap 51 ··· Nipping portion 52 ··· Fixing portion 521 ··· Front side fixing portion 522 ··· Back side fixing portion 53 ··· Locking portion 530 ··· Hinge locking portion 54 ··· ... Adhesive 55 ... Recess 56 ... Nail 560 ... Nail hole

Claims

It is a packaging bag made by combining front and back films and fusing the surroundings,
Having a spout protruding from the end,
On both the outer front and back sides of the spout root, it has a length beyond the left and right ends of the spout, and has a pinching tab having a pinching portion with springiness,
The left and right ends of the holding tabs provided on the front and back are locked,
By changing the width of both ends of the holding tab, the front and back films forming the base of the spout are closed or separated following the holding tab,
A packaging bag characterized in that the spout can be opened and closed.

The packaging bag according to claim 1, wherein a locking portion is provided at an extraction side end portion of the right and left fixing portions of the front and back holding portions of the holding tab and integrated.

The packaging bag according to claim 1 or 2, wherein the holding portion provided at the base of the spout is adhered to one of the front and back films of the spout over the entire surface.

The nipping portion provided at the base of the spout is formed by adhering the entire surface of one film on the front and back of the spout and the spout flow path surface of the other film. Packaging bag.

The packaging bag according to claim 1 or 2, wherein the holding portion provided at the base of the spout is adhered to the spout flow path surface of each of the front and back films of the spout.

The packaging bag according to claim 1 or 2, wherein the holding portion provided at the base of the spout is joined to both ends of the right and left seal portions of the spout.

The packaging bag according to any one of claims 1 to 6, wherein recesses are provided at both left and right ends of the holding tab.

The packaging bag according to any one of claims 1 to 7, wherein the packaging bag is composed of a laminated sheet including a biaxially stretched film.