JP3777773B2 - Packaging bag with dispensing function - Google Patents

Description

【００３４】
参考例１〜５の容器では、内容液は残量に関係なく、一定量を迅速かつ連続的に注出することができた。比較例１では、内容液が上方に逃げるため注出性に劣り、残量が少なくなるとともに注出できなくなった。比較例２では、内容液が上方に僅かに逃げるため定量性に劣り、かつ内容液が定量室を満たすのに約３０秒かかり連続的に注出できなかった。
【００３５】
本発明の包装袋に収納する内容物としては特に制限はなく、液体洗剤、シャンプー、リンス、消毒液、醤油、ソース、トマトケチャップ等液状ないしはジェル状のものはいずれも好適に収納することができる。
【００３６】
【発明の効果】
上記構成をとることによって、本発明の包装袋は、開封した後にも袋内部に収納した液体が流出しない自己閉鎖性注出口を設けた定量室を有する包装袋の、注出時の内容物の袋本体側への液逃げを防止して優れた定量機能と注出の安定性を確保するとともに、内容物の粘度や残存量に関係なく内容物を迅速かつ連続的に注出することができるものであり、また所望により容量の異なる複数の定量機能を付与することも可能である等、実用的価値のきわめて高い発明である。
【図面の簡単な説明】
【図１】本発明の注出機能付包装袋の１例を示す斜視図である。
【図２】図１の包装袋に内容物を充填した状態を示す部分拡大模式図で、注出口が閉じた状態を示す図である。
【図３】図１の包装袋に内容物を充填した状態を示す部分拡大模式図で、注出口が開いた状態を示す図である。
【図４】本発明の包装袋に設ける定量室及び注出口の他の例を示す模式図である。
【図５】本発明の包装袋に設ける定量室及び注出口の他の例を示す模式図である。
【図６】本発明の包装袋に設ける定量室及び注出口の他の例を示す模式図である。
【図７】本発明の包装袋に設ける定量室及び注出口の他の例を示す模式図である。
【図８】本発明の包装袋に設ける定量室及び注出口の他の例を示す模式図である。
【図９】本発明の包装袋におけるフイルム状の弁の他の例を示す模式図である。
【図１０】本発明の包装袋におけるフイルム状の弁の他の例を示す模式図である。
【図１１】本発明の包装袋におけるフイルム状の弁の他の例を示す模式図である。
【図１２】本発明の包装袋におけるフイルム状の弁の他の例を示す模式図である。
【図１３】本発明の包装袋におけるフイルム状の弁の他の例を示す模式図である。
【図１４】本発明の包装袋の他の例を示す斜視図である。
【図１５】図１４の包装袋に内容物を充填した状態を示す断面模式図である。
【図１６】図１４の包装袋の使用状態を示す断面模式図である。
【図１７】本発明の包装袋の他の例を示す平面図である。
【符号の説明】
１ 包装袋
２ 液体収納室
３、４１、４２ 定量室
４ 注出口
５ 弁
６、７、８、９、４３ ヒートシール部
１０ 未シール部
１１、１２ 側壁部材
１３ 易開封加工部
１４ タブ
１５ 頂部
１６ 分岐室
１７ 係合孔
１８ フック
２０ 穴
２１、２２、３１ フイルム
３０ スリット[0001]
BACKGROUND OF THE INVENTION
The present invention is a package with a quantitative dispensing function capable of quantitatively dispensing liquid contents such as liquid detergent, shampoo, disinfectant, soy sauce, sauce, tomato ketchup and the like stored in a bag and having a self-closing pouring outlet Regarding bags.
[0002]
[Prior art]
Conventionally, a liquid packaging bag having a self-closing pouring port, which is formed of a flexible material such as a plastic film and does not flow out of the liquid stored in the bag even after being opened and then left as it is, is known. It is. (For example, Japanese Utility Model Publication No. 62-93040)
Moreover, by applying external pressure to a specific part adjacent to the outlet of the packaging bag, the packaging bag can be used to quantitatively dispense the contents (Japanese Utility Model Publication No. 4-54109), and the packaging bag is heat sealed. Thus, a packaging bag having a quantitative function separated into two chambers, a storage bag part and a quantitative bag part, has also been proposed. (Japanese Patent Laid-Open No. 8-119348)
[0003]
However, the liquid packaging bag described in Japanese Utility Model Laid-Open No. 62-93040 does not have a quantitative function and has a drawback that it is difficult to dispense when the content is reduced. In addition, the packaging bag described in Japanese Utility Model Publication No. 4-54109 has a certain amount of quantitative function, but when an external pressure is applied, the contents return to the main body side of the bag (liquid escape), making the dispensing unstable and quantitative. There is a problem that it is not good. In the packaging bag described in Japanese Patent Application Laid-Open No. 8-119348, the storage bag portion and the quantitative bag portion are separated, but the quantitative performance is improved compared to the packaging bag described in Japanese Utility Model Publication 4-54109. The liquid escape of the contents from the metering bag part to the storage bag part cannot be completely prevented, the dispensing stability and the quantitative property are insufficient, and the contents from the storage bag part to the metering bag part It takes time to move, and in the case of a highly viscous content, it is difficult to continuously pour out in a short time.
[0004]
[Problems to be solved by the invention]
Accordingly, the object of the present invention is to solve these problems of the prior art, and in a packaging bag having a self-closing pouring port in which the liquid stored inside the bag does not flow out even after opening, the bag main body at the time of dispensing the liquid contents Quantitative injection that can quickly and continuously dispense contents regardless of the viscosity or residual amount of the contents while ensuring excellent quantitative function and dispensing stability. The purpose is to provide a packaging bag with an exit function.
[0005]
[Means for Solving the Problems]
The present invention adopts the following configuration in order to achieve the above object.
1. A dispensing function which is made of a flexible material and has a liquid storage chamber, a metering chamber separated from the liquid storage chamber by a film-shaped valve communicating with the liquid storage chamber, and a self-closing spout communicating with the metering chamber In the attached packaging bag, by extending the side wall of the packaging bag outward at a position below the top of the packaging bag, a branch chamber having a self-closing outlet and a metering chamber is formed at the tip, and the top of the packaging bag is A packaging bag with a pouring function, characterized by being a filling port for contents.
2. One end in the width direction of the film-shaped valve that divides the liquid storage chamber and the metering chamber is joined to the side wall member on one side of the packaging bag, and the other end in the width direction of the film-shaped valve is 2. The packaging bag with a dispensing function according to 1, which is joined to a side wall member on the other side .
3. The packaging bag with a dispensing function according to 2 , wherein a cross-sectional shape in use as seen from the side of a film-shaped valve that divides the liquid storage chamber and the metering chamber is S-shaped .
4. The packaging bag with a dispensing function according to 2 , wherein a cross-sectional shape in use as seen from the side of the film-shaped valve that divides the liquid storage chamber and the metering chamber is V-shaped .
5. The packaging with a dispensing function according to 2 , wherein a cross-sectional shape when viewed from the side of the film-shaped valve that divides the liquid storage chamber and the metering chamber is an inverted V shape or an inverted U shape . bag.
6. The liquid storage chamber and the metering chamber communicate with each other by an unjoined portion provided partially at the joint portion between the film-shaped valve and the side wall member of the packaging bag. A packaging bag with a dispensing function according to the item .
7. The packaging bag with a dispensing function according to any one of 1 to 5 , wherein the liquid storage chamber and the metering chamber communicate with each other through a hole or slit provided in the film-shaped valve .
[0006]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
1-3 is a figure which shows an example of the packaging bag with the extraction | pouring function of this invention, and FIG. 1 is a perspective view of the packaging bag before content filling. 2 and 3 are partially enlarged schematic views of the metering chamber and the spout showing a state in which the packaging bag of FIG. 1 is filled, and FIG. 2 is a diagram showing a state where the spout is closed, FIG. FIG. 6 is a view showing a state where a spout is opened. 2 and 3, (A) is a schematic cross-sectional view of the metering chamber and the spout, and (B) is a diagram showing the state of the contents in the valve (center portion) and the spout, respectively.
[0007]
The packaging bag 1 is obtained by heat-sealing two side wall members 11 and 12 at both side portions 6 and 6 and a lower end portion 7, and heat-sealing the upper end portion of the packaging bag after filling the contents. The packaging bag 1 is provided with a metering chamber 3 adjacent to the liquid storage chamber 2 and a self-closing spout 4 communicating with the metering chamber 3. The liquid storage chamber 2 and the metering chamber 3 are partitioned by a film-like valve 5, the upper end 8 in the width direction of the valve 5 is joined to one side wall member 11 by heat sealing, and the lower end in the width direction of the valve 5. 9 is joined to the other side wall member 12 by heat sealing. Further, both end portions in the length direction of the valve 5 are heat sealed to the side wall members 11 and 12 by both side portions 6 and 6. The lower end portion 9 of the valve 5 is configured so that the liquid storage chamber 2 and the metering chamber 3 communicate with each other by providing an unsealed portion 10 at the center thereof.
[0008]
When the packaging bag 1 is filled with the liquid content, the content flows from the liquid storage chamber 2 through the unsealed portion 10 of the valve 5 into the metering chamber 3 as shown in FIG. When the internal pressure of the liquid storage chamber 2 at this time is Po and the internal pressure of the fixed amount chamber is P, P <Po. Moreover, the packaging material which comprises the packaging bag 2 is bend | folded by the pressure of a liquid content along the heat seal part 7 in the connection part with the fixed_quantity | quantitative_assay room 3 of the spout 4, and the side wall which a spout opposes is bent. Since the contact is made, the spout 4 has a self-closing property even after the tip of the spout 4 is opened by adjusting the length of the spout 4, and the liquid content does not flow out.
[0009]
In order to take out the liquid contents from the packaging bag 1, as shown in FIG. 3, after opening the tip of the spout 4, the metering chamber 3 is pressed by hand or a jig. At this time, since P> Po and the spout 4 is not broken, the spout 4 is opened and the liquid content is poured out.
At this time, the liquid content tries to flow backward from the metering chamber 3 to the liquid storage chamber 2 (FIG. 3B), but the valve 5 is closed, so that the backflow of the content is prevented, and the metering chamber Since all the contents in 3 are poured out from the spout 4, it is possible to ensure the stability of dispensing and the excellent quantitativeness.
[0010]
In the packaging bag of this invention, there is no restriction | limiting in particular in the shape of a liquid storage chamber, a fixed_quantity | quantitative_assay chamber, and a spout, For example, it can be set as a thing of various shapes as seen in FIGS. At this time, the spout may not be provided at the center of the packaging bag as shown in FIG.
The width w of the spout, the length h after opening the spout, the opening angle θ of the spout inlet (see FIGS. 4 and 5), the shape of the spout, etc. are appropriately determined according to the viscosity and amount of the contents. You only have to set it. In general, when the width w of the spout is widened, the pouring property is good, but the closing property is poor, so that it is suitable for a highly viscous content. If the width w of the spout is narrowed, the pouring property is poor but the closing property is improved, so that it is suitable for the low viscosity content. Further, the opening angle θ of the spout inlet can be selected from the range of 0 <θ ≦ 180 °, but it is usually preferably 45 ° ≦ θ ≦ 180 °. When the opening angle θ is large, the closing property is improved, but the pouring property is deteriorated, so that it is suitable for a low-viscosity content. When the opening angle θ is small, the closing property is deteriorated, but the pouring property is improved, so that it is suitable for a highly viscous content. Then, if the length h of the spout is shortened, the liquid leakage of the contents occurs. Therefore, the length h is preferably longer than the tip position of the V-shaped bend that closes the spout.
[0011]
In order to facilitate the opening of the tip of the spout 4 at the lower end of the packaging bag 1, as shown in FIGS. 4 and 7, an easy opening processing portion 13 and a tearing tab 14 can be provided.
Examples of such an easy-open processing part include an I-type or V-type notch formed at the bag end, a perforation or a score traversing the tip of the spout 4, and other thinning processing parts. As a method of forming such an easy-open processing part, (1) mechanical processing with a cutter, a grindstone, etc., (2) thermal processing with a heat bar, (3) laser processing, (4) corona discharge, plasma discharge, etc. Examples include electric discharge machining.
[0012]
In the packaging bag 1 of FIGS. 1 to 3, the liquid storage chamber 2 and the metering chamber 3 are partitioned by a valve 5 having a S-shaped film shape when viewed from the side, and the lower end heat of the valve 5. Although the liquid storage chamber 2 and the metering chamber 3 communicate with each other by the unsealed portion 10 provided in the seal portion 9, the shape of the valve and the communication structure can be modified into various forms.
9 to 13 are views showing other forms of film-like valves that divide the liquid storage chamber and the metering chamber. In these drawings, (A) is a perspective view of a film-like valve (center portion), and (B) shows a state in which a packaging bag partitioned by a film-like valve is filled with contents, It is a partial side cross-sectional schematic diagram of the packaging bag in part AA.
[0013]
The valve 5 in FIGS. 9 and 10 has an S-shaped cross-sectional shape when viewed from the side as in FIGS. 1 to 3, and the upper end of the valve 5 is placed on the side wall member 11 and the lower end of the valve 5. The portions 9 are each heat-sealed to the side wall member 12 entirely. In the valve of FIG. 9, a hole 20 is provided in the lower end portion of the valve 5 so that the liquid storage chamber 2 and the metering chamber 3 communicate with each other. In the valve of FIG. 10, a slit 30 is similarly provided in the lower end portion of the valve 5. .
[0014]
The valve 5 in FIG. 11 is formed by heat-sealing two films 21 and 22 at the lower end 9, and the films 21 and 22 are heat-sealed at the upper end portions 8 and 8 to the side wall members 11 and 12, respectively. The cross-sectional shape at the time of use seen from the side surface is configured to be V-shaped. An unsealed portion 10 is provided at the lower end heat seal portion 9 of the valve 5, and the liquid storage chamber 2 and the metering chamber 3 communicate with each other.
[0015]
The valve 5 in FIG. 12 is formed by heat-sealing two films 21 and 22 at the upper end 8, and the films 21 and 22 are heat-sealed at the lower end portions 9 and 9 to the side wall members 11 and 12, respectively. The cross-sectional shape at the time of use seen from the side is configured to be an inverted V-shape. Unsealed portions 10 and 10 are provided at the lower end heat seal portions 9 and 9 of the valve 5, and the liquid storage chamber 2 and the metering chamber 3 communicate with each other. The valve 5 may be formed from a single film.
[0016]
The valve 5 shown in FIG. 13 is obtained by bending the cross-sectional shape of one film 31 when viewed from the side into an inverted U shape and heat-sealing the lower end portions 9 and 9 to the side wall members 11 and 12. . Unsealed portions 10 and 10 are provided at the lower end heat seal portions 9 and 9 of the valve 5, and the liquid storage chamber 2 and the metering chamber 3 communicate with each other.
In the valve 5 of FIGS. 9 to 13, the liquid storage chamber 2 and the metering chamber 3 are communicated with each other by providing the unsealed portion 10 at the lower end heat seal portion 9 of the valve 5, but instead of the unsealed portion, It is good also as a structure which connects the liquid storage chamber 2 and the fixed_quantity | quantitative_assay chamber 3 by providing a hole and a slit in the valve 5. FIG.
[0017]
There is no restriction | limiting in particular in the form of the packaging bag of this invention, This invention is applicable to packaging bags of various shapes, such as a flat bag, a pillow bag, a gusset bag, and a standing pouch.
14-16 is a figure which shows the other form of the packaging bag of this invention, and FIG. 14 is a perspective view showing an example which applied this invention to the standing pouch. 15 is a schematic cross-sectional view showing a state in which the pouch shown in FIG. 14 is filled with contents, and FIG. 16 is a schematic cross-sectional view showing a use state of the pouch shown in FIG.
[0018]
In this standing pouch 1, a branch chamber 16 having a spout 4 and a metering chamber 3 at the tip is formed by extending the side wall of the pouch outward at a position below the top 15 of the pouch. Inside the branch chamber 16, like the packaging bag of FIGS. 1 to 3, the film-like valve 5 is heat-sealed to the side wall member at the upper end portion 8 and the lower end portion 9, respectively, and the liquid storage chamber 2 and the metering chamber 3 is divided. By providing an unsealed portion 10 at the center of the lower end portion 9, the liquid storage chamber 2 and the metering chamber 3 are configured to communicate with each other.
[0019]
In this standing pouch, after filling the pouch from the top 15 of the pouch, the top 15 is heat sealed to seal the pouch. In order to use this pouch, for example, when the pouch is inverted by engaging the engagement hole 17 provided in the bottom of the pouch with a locking tool such as a hook 18 (see FIG. 16), the contents are contained in the branch chamber 16. Into the metering chamber 3 and passes through the valve 5 to fill the metering chamber 3. Next, when the quantitative chamber 3 is pressed with a hand or a jig after opening the tip of the spout 4, the spout 4 is opened and the contents in the quantitative chamber 3 can be taken out. Liquid escape of the contents from the metering chamber 3 into the liquid storage chamber 2 is prevented by the film-like valve 5, and all the contents in the metering chamber 3 are poured out from the spout 4. Excellent quantitativeness can be ensured. When the pressing of the metering chamber 3 is stopped, the content again passes from the liquid storage chamber 2 through the valve 5 and is filled into the metering chamber 3, and the packaging material constituting the pouch 1 is fixed to the spout 4 with the pressure of the content. The spout 4 is closed by being bent into a V shape at the connecting portion with the chamber 3 and bringing the opposing side walls of the spout 4 into close contact.
[0020]
In the above example, the single metering chamber 3 and the spout 4 are formed by providing one branch chamber 16 on the side wall of the standing pouch 1, but a plurality of branch chambers are provided on the side wall of the pouch, It is good also as a structure which has several different fixed_quantity | quantitative_assay chambers and spouts. Further, the plurality of fixed-quantity chambers and spouts can be provided not only in a branched pouch but also in a normal packaging bag such as a flat bag or a gusset bag, as shown in FIG.
[0021]
In the packaging bag of the present invention, the material constituting the packaging bag body and the film-like valve is not particularly limited, and any material having flexibility can be used, but a plastic material is usually used. preferable.
Examples of plastic materials suitable for constituting the packaging bag body include crystalline polypropylene, crystalline propylene-ethylene copolymer, crystalline polybutene-1, crystalline poly-4-methylpentene-1, low-, and medium- Or polyolefins such as high-density polyethylene, ethylene-vinyl acetate copolymer (EVA), EVA saponified product, ethylene-ethyl acrylate copolymer (EEA), ion-crosslinked olefin copolymer (ionomer); polystyrene, styrene -Aromatic vinyl copolymers such as butadiene copolymers; vinyl halide polymers such as polyvinyl chloride and vinylidene chloride resins; polyacrylic resins; acrylonitrile-styrene copolymers, acrylonitrile-styrene-butadiene copolymers Nitrile polymers such as: nylon 6, nylon 66, para Other meta-xylylene such polyamides adipamide; can be exemplified thermoplastic resins Polyacetals such polyoxymethylene and the like, polyethylene terephthalate, polyesters polytetramethylene terephthalate; various polycarbonates; fluorine-based resin.
The packaging bag body is usually composed of an unstretched, uniaxially or biaxially stretched film or sheet made of these plastic materials.
[0022]
The packaging bag body of the present invention can be constituted by a single layer of these plastic films or sheets, or by laminating two or more kinds, and one or more of these plastic films or sheets, A metal foil such as aluminum, paper, cellophane, or the like can also be laminated.
In particular, in the case of contents that require gas barrier properties, a polyvinylidene chloride resin layer, an EVA saponified layer, a resin layer having a vapor-deposited film of a metal oxide such as aluminum or silicon oxide, or a metal foil such as aluminum It is preferable to use a laminate including When manufacturing these laminated bodies, the anchor agent which consists of an epoxy resin, a urethane resin, a polyethyleneimine resin etc. can also be interposed between each layer as needed.
[0023]
In order to give rigidity or heat insulation to the film or sheet constituting the packaging bag, films or sheets made of various synthetic resin foams can also be used, and titanium oxide, calcium carbonate, carbon can be used for various synthetic resins. Films or sheets filled with additives such as these can also be used. What is necessary is just to select according to the property of the contents with which a packaging bag is filled whether the plastic film or sheet | seat used as a packaging bag main body shall be made into a single layer, or what kind of layer structure shall be used.
[0024]
In the packaging bag of the present invention, the material constituting the film-like valve may be a single layer or a multilayer film, but it is preferable to use a plastic material having both surfaces heat-sealing to the inner surface of the bag body. Examples of plastic materials suitable for constituting a film-like valve include polyolefins such as polyethylene, polypropylene, ethylene / propylene copolymer, and ethylene / vinyl acetate copolymer, and acrylic resins.
[0025]
【Example】
Next, the present invention will be described in more detail with reference examples, but these reference examples do not limit the present invention.
( Reference Example 1)
As a side wall member constituting the packaging bag body, a two-layer film obtained by dry laminating a biaxially stretched nylon film having a thickness of 15 μm and a linear low density polyethylene film having a thickness of 130 μm with a urethane adhesive is used to constitute a valve. Using a linear low-density polyethylene film with a thickness of 30 μm as the film, a packaging bag with a dispensing function having a valve with a cross-sectional shape viewed from the side when used as shown in FIGS. did. In this packaging bag, an opening tab 14 as shown in FIG. 7 and an easy opening processing portion 13 by laser processing are provided at the spout portion.
The outer dimensions of the packaging bag body were 200 mm in height and 100 mm in width, and the widths of heat seals on both sides and the lower end were 5 mm and 12 mm, respectively. The valve 5 had a length of 100 mm and a width of 30 mm, and was arranged so that the lower end portion 9 of the valve was a distance of 40 mm from the lower end of the packaging bag body. The width of the heat seal with the side wall members 11 and 12 at the upper end 8 and the lower end 9 of the valve is 5 mm, and the unsealed portion 10 having a length of 15 mm is provided in the center of the heat seal portion of the lower end 9 of the valve. It was. The spout portion was formed so that the opening angle θ of the spout entrance was 120 °, the width w of the spout was 4 mm, and the length h of the spout was 10 mm after opening.
[0026]
( Reference Example 2)
Instead of providing the unsealed portion 10 at the heat seal portion of the lower end portion 9 of the valve 5, the packaging bag with the dispensing function is provided in the same manner as in Reference Example 1 except that the slit 5 shown in FIG. Produced. The slit 30 was a straight line having a length of 10 mm. The heat seal width between the lower end portion 9 of the valve 5 and the side wall member 12 was 2 mm in the vicinity of the slit, and the slit was disposed 1 mm above this.
[0027]
( Reference Example 3)
A packaging bag with a dispensing function in the same manner as in Reference Example 1 except that a valve 5 having a V-shaped cross-section shown in FIG. Was made. The V-shaped valve 5 is composed of two films used to form the S-shaped valve in Reference Example 1, and heat-sealed the lower end portion with a width of 5 mm, with a length at the center. It was formed by providing a 15 mm unsealed portion 10. Moreover, the width | variety of the heat seal with the side wall member in the upper end parts 8 and 8 of the valve was 5 mm.
[0028]
( Reference Example 4)
A package with a dispensing function in the same manner as in Reference Example 1 except that a valve 5 having an inverted U-shaped cross section shown in FIG. 13 is used instead of a valve having a S-shaped cross section viewed from the side. A bag was made. For the inverted U-shaped valve, the film used to form the S-shaped valve in Reference Example 1 is cut into a length of 100 mm and a width of 50 mm, and bent at the center so that the width is 25 mm. Formed by. Moreover, the width | variety of the heat seal with the side wall member in the lower end parts 9 and 9 of a valve was 5 mm, and the unsealed part of length 15mm was provided in the center part.
[0029]
( Reference Example 5)
As the side wall member constituting the packaging bag body and the film constituting the valve, the same film as in Reference Example 1 is used, and the two quantitative chambers 41, 42 having different volumes are provided at the lower end of the bag shown in FIG. A functional packaging bag was prepared.
The outer dimensions of the packaging bag body were 200 mm in height and 200 mm in width, and two fixed chambers were formed by providing a heat seal portion 43 having a width of 10 mm in the center of the lower end of the bag. The volumes of the quantification chambers 41 and 42 were made different by setting the distance between the lower end of the valves 5 and 5 and the lower end of the packaging bag to separate the quantification chambers to 20 mm and 40 mm. Other configurations of this packaging bag are the same as those of the packaging bag of Reference Example 1.
[0030]
(Comparative Example 1)
A packaging bag with a dispensing function was formed in the same manner as in Reference Example 1 except that the valve 5 was not provided.
[0031]
(Comparative Example 2)
The dispensing function is the same as in Reference Example 1 except that the film bag is not provided and the packaging bag body is partitioned into a liquid storage chamber and a metering chamber by heat-sealing 70 mm from the lower end of the packaging bag. A packaging bag was prepared. In addition, the belt-shaped heat seal part for division was made into width 5mm, and provided the unsealed part of length 5mm in the center.
[0032]
The packaging bags of Reference Examples 1 to 4 and Comparative Examples 1 and 2 are filled and sealed with 100 ml of synthetic detergent for kitchens, and the packaging bag of Reference Example 5 is filled and sealed with 180 ml of synthetic detergent. Comparison was made with respect to the presence or absence of liquid escape, quantitative performance, and the time required for the content liquid to fill the quantitative chamber again after pouring. The results are shown in Table 1.
[0033]
[Table 1]

[0034]
In the containers of Reference Examples 1 to 5, a constant amount of the content liquid could be quickly and continuously dispensed regardless of the remaining amount. In Comparative Example 1, the content liquid escapes upward, so that the pouring property is inferior, the remaining amount decreases, and the pouring becomes impossible. In Comparative Example 2, the content liquid escaped slightly upward, so that the quantitative property was inferior, and it took about 30 seconds for the content liquid to fill the quantitative chamber, and could not be continuously poured out.
[0035]
The contents stored in the packaging bag of the present invention are not particularly limited, and any liquid or gel-like items such as liquid detergent, shampoo, rinse, disinfectant, soy sauce, sauce, tomato ketchup can be suitably stored. .
[0036]
【The invention's effect】
By taking the above-described configuration, the packaging bag of the present invention can be used for the contents of a packaging bag having a metering chamber provided with a self-closing outlet that does not allow the liquid stored in the bag to flow out even after opening. Prevents liquid escape to the bag body side to ensure excellent quantitative function and stability of dispensing, and can quickly and continuously dispense contents regardless of the viscosity or remaining amount of contents In addition, it is an invention with extremely high practical value, such as being capable of providing a plurality of quantitative functions having different capacities as desired.
[Brief description of the drawings]
FIG. 1 is a perspective view showing an example of a packaging bag with a dispensing function according to the present invention.
2 is a partially enlarged schematic view showing a state in which the packaging bag of FIG. 1 is filled with contents, and is a view showing a state where a spout is closed. FIG.
3 is a partially enlarged schematic view showing a state in which the packaging bag of FIG. 1 is filled with contents, and showing a state in which a spout is opened.
FIG. 4 is a schematic view showing another example of a metering chamber and a spout provided in the packaging bag of the present invention.
FIG. 5 is a schematic view showing another example of a metering chamber and a spout provided in the packaging bag of the present invention.
FIG. 6 is a schematic view showing another example of a metering chamber and a spout provided in the packaging bag of the present invention.
FIG. 7 is a schematic view showing another example of a metering chamber and a spout provided in the packaging bag of the present invention.
FIG. 8 is a schematic view showing another example of a metering chamber and a spout provided in the packaging bag of the present invention.
FIG. 9 is a schematic view showing another example of a film-like valve in the packaging bag of the present invention.
FIG. 10 is a schematic view showing another example of a film-like valve in the packaging bag of the present invention.
FIG. 11 is a schematic view showing another example of a film-like valve in the packaging bag of the present invention.
FIG. 12 is a schematic view showing another example of a film-like valve in the packaging bag of the present invention.
FIG. 13 is a schematic view showing another example of a film-like valve in the packaging bag of the present invention.
FIG. 14 is a perspective view showing another example of the packaging bag of the present invention.
15 is a schematic cross-sectional view showing a state where the packaging bag of FIG. 14 is filled with contents.
16 is a schematic cross-sectional view showing a usage state of the packaging bag of FIG.
FIG. 17 is a plan view showing another example of the packaging bag of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Packaging bag 2 Liquid storage chambers 3, 41, 42 Fixed_quantity | quantitative_assay chamber 4 Outlet 5 Valves 6, 7, 8, 9, 43 Heat seal part 10 Unseal part 11, 12 Side wall member 13 Easy-open process part 14 Tab 15 Top part 16 Branch chamber 17 Engagement hole 18 Hook 20 Holes 21, 22, 31 Film 30 Slit

Claims (7)

Packaging with a dispensing function, which is made of a flexible material and has a liquid storage chamber, a metering chamber separated from the liquid storage chamber by a film-shaped valve in communication with the liquid storage chamber, and a self-closing spout that communicates with the metering chamber In the bag, by extending the side wall of the packaging bag outward at a position below the top of the packaging bag, a branch chamber having a self-closing spout and a metering chamber is formed at the tip, and the top of the packaging bag is the contents A packaging bag with a pouring function, characterized by being a filling port. One end in the width direction of the film-shaped valve that divides the liquid storage chamber and the metering chamber is joined to the side wall member on one side of the packaging bag, and the other end in the width direction of the film-shaped valve is the other end of the packaging bag. The packaging bag with a dispensing function according to claim 1, wherein the packaging bag is joined to a side wall member on the side . The packaging bag with a dispensing function according to claim 2 , wherein a cross-sectional shape of the film-shaped valve that divides the liquid storage chamber and the metering chamber when viewed from the side is an S-shape . The packaging bag with a dispensing function according to claim 2 , wherein a cross-sectional shape of the film-shaped valve that divides the liquid storage chamber and the metering chamber when viewed from the side is V-shaped . 3. The package with a dispensing function according to claim 2 , wherein a cross-sectional shape of the film-like valve used for partitioning the liquid storage chamber and the metering chamber when viewed from the side is an inverted V shape or an inverted U shape . bag. 6. The liquid storage chamber and the metering chamber communicate with each other by an unjoined portion provided partially at the joint portion between the film-shaped valve and the side wall member of the packaging bag. A packaging bag with a dispensing function according to the item . The packaging bag with a dispensing function according to any one of claims 1 to 5, wherein the liquid storage chamber and the metering chamber communicate with each other through a hole or slit provided in the film-shaped valve .

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