JP2011011812A - Bag body and content filling body - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a multi-chamber bag body which keeps each content in an isolated state in a plurality of small chambers until the time right before use, opens each small chamber by one motion, enables contents respective small chambers are filled with, to be simultaneously discharged, and is easily manufactured, and also easily performs the discharge of the contents without waste.SOLUTION: This bag body is formed of a flexible film, and the inside of the bag body is partitioned into the plurality of small chambers by a boundary sealed section formed by sealing the confronted internal surfaces of the flexible film which forms the bag body to each other. The boundary sealed section includes a weak sealed section formed by separably sealing the internal surfaces of the flexible film to each other in such a manner that at least two small chambers which are isolated by the boundary sealed section are connected. Within the region of the weak sealed section, a cutting section which penetrates one or both of the flexible films is installed for the bag body.

Description

  The present invention relates to a bag body having a plurality of small chambers and a content filling body in which the bag body is filled with contents.

  Conventionally, if different types of contents are pre-mixed in one bag, the contents will be separated until just before use for contents that change in the state of the contents over time. It is preferable to store in such a state, and bags having a plurality of small chambers (multiple chambers) have been proposed as bags suitable for filling such contents.

For example, in Patent Document 1, in a multi-chamber container in which a plurality of storage chambers are liquid-tightly partitioned by a partition portion in which the periphery is sealed and the container walls are connected to each other so as not to be separated, the container wall is made flexible. A bent portion that can be bent with the outer surfaces of the container walls facing each other, provided at a middle portion of the container in a direction along at least a part of the partition portion, and bent in the bent portion. A flexible multi-chamber container is disclosed in which discharge holes are respectively provided at positions on the same end side of a plurality of storage chambers.
In the container of Patent Document 1, each storage chamber is maintained in a liquid-tight state between the storage chambers by a non-peelable partition portion, and a discharge hole for discharging the stored items is provided independently. Each container can be squeezed out from each discharge hole by pressing the container wall in a state where the container wall is bent at the bent portion provided between the storage chambers. However, since the container of patent document 1 is provided with each discharge hole independently, the content discharged from each discharge hole may be discharged to a different position.

JP 2002-255250 A

  It is an object of the present invention to store each content in a plurality of small chambers in an isolated state until just before use, and to open each small chamber in one operation and to fill the contents filled in each small chamber Another object is to provide a bag that can be discharged simultaneously to the same place. Another object of the present invention is to provide a bag body that is easy to manufacture and that allows the contents to be easily discharged without waste.

The bag of the present invention is a bag formed of a flexible film,
The inside of the bag body is partitioned into a plurality of small chambers by a boundary seal portion formed by sealing the inner surfaces facing each other of the flexible film forming the bag body,
The boundary seal portion includes a weak seal portion that seals the inner surfaces of the flexible film so as to be peeled so as to connect between at least two small chambers separated by the boundary seal portion.
A cutting portion that penetrates one or both of the flexible films is provided in the area of the weak seal portion.

  Since the bag body of the present invention is formed of a flexible film, in the boundary seal portion that partitions a plurality of small chambers, the weak seal portion, in particular, the end portion where the cut portion in the weak seal portion region is bent. First, the weak seal part is peeled off by pressing a plurality of folded small chambers from the outside in a state of being folded so as to be positioned at each of the small chambers to form a lead-out path connected to the cutting part. Can do. As a result, the cutting part functions as a discharge port for discharging the contents filled in each small chamber to the outside of the bag body. The contents filled in each of the small chambers can be pushed out from the cutting portion and simultaneously discharged by pressing the plurality of folded small chambers.

As described above, according to the present invention, by pressing the bag body from the outside, a plurality of independent small chambers are opened, and the contents accommodated in a separated state in each small chamber are simultaneously Can be discharged.
Moreover, since the structure of the cutting part used as the discharge outlet of the content of the bag body of this invention is very simple, manufacture is easy and also it is easy to discharge | emit the content without waste.
In the bag of the present invention, the cut portion functions as a discharge port by peeling off the weak seal portion, and the cut portion is a common discharge port among a plurality of small chambers separated by the weak seal portion. The contents filled in the plurality of small chambers are simultaneously discharged from the cutting portion to the same place. Therefore, in the bag of the present invention, there is an advantage that different types of filled contents are simultaneously discharged from the cutting portion which is a discharge port to the same place. That is, the bag body of the present invention is suitable as a bag body that is filled with different types of contents that are to be discharged to the same place at the same time.

As a specific form of the cutting part, for example, there is a notch provided in a straight line substantially perpendicular to the juxtaposition direction of a plurality of small chambers arranged side by side with the boundary seal part as a boundary.
Moreover, it is preferable that the said cutting part is located in the edge part of bending, when the said bag body is bent in the said boundary seal part.

  The contents-filled body of the present invention is obtained by filling each of the small chambers of the above-described bag according to the present invention.

  According to the present invention, in a bag that can be stored in a plurality of small chambers in a state where each content is isolated until immediately before use, each small chamber is opened in one operation, and the contents filled in each small chamber are It is possible to discharge to the same place at the same time. Moreover, the bag body of the present invention is easy to manufacture, and the contents can be easily discharged without waste.

It is the top view (1A) and sectional drawing (1B) which show the 1st form example of the bag body of this invention. It is a side view at the time of bending the bag body of FIG. It is a top view which shows the 2nd form example of the bag body of this invention. It is a top view which shows the 3rd example of a form of the bag body of this invention. It is a top view which shows the 4th example of a form of the bag body of this invention. It is a top view which shows the 5th example of a form of the bag body of this invention.

The bag of the present invention is a bag formed of a flexible film,
The inside of the bag body is partitioned into a plurality of small chambers by a boundary seal portion formed by sealing the inner surfaces facing each other of the flexible film forming the bag body,
The boundary seal portion includes a weak seal portion that seals the inner surfaces of the flexible film so as to be peeled so as to connect between at least two small chambers separated by the boundary seal portion.
A cutting portion that penetrates one or both of the flexible films is provided in the area of the weak seal portion.

Hereinafter, the present invention will be described with reference to FIGS.
In addition, in (1A) of FIG. 1, and FIGS. 3-6, the hatching location has shown the sealing part (sealing part 4, boundary seal part 2, weak seal part 2a) of each structural member.

  FIG. 1 shows an embodiment of a bag body of the present invention, and is a plan view (1A) of the bag body 100 and a cross-sectional view (1B) taken along line AA of (1A). FIG. 2 is a side view showing a state in which the bag body 100 of FIG. 1 is folded at the boundary seal portion 2 and the small chambers 1X and 1Y are folded.

  As shown in FIG. 1, the bag body 100 is sealed and bag-formed by a sealing portion 4 in which end edges of opposing flexible films 3 and 3 are overlapped and the inner surfaces thereof are sealed. The interior of the bag body 100 is partitioned into a plurality of small chambers 1X and 1Y by a boundary seal portion 2 that seals the inner surfaces facing each other of the flexible films 3 and 3 constituting the bag body 100. Each of the small chambers 1X and 1Y is a space independent from each other, and each can seal the contents.

  The boundary seal portion 2 that separates the small chambers 1X and 1Y is composed of a weak seal portion 2a that seals the inner surfaces of the flexible films 3 and 3 so that they can be peeled off. The weak seal portion 2a is formed by pressing the bag body 100 made of a flexible film from the outside with fingers or the like to increase the internal pressure of each of the small chambers 1X and 1Y. It has a sealing strength that causes peeling. Further, the weak seal portion 2 a is provided with a cutting portion (cut) 5 that penetrates both the flexible films 3 and 3.

The bag body 100 having the above structure is filled with different types of contents in the small chambers 1X and 1Y, and is folded at the boundary seal portion 2 to fold the small chambers 1X and 1Y as shown in FIG. When these small chambers 1X and 1Y are pressed from the outside with fingers or the like in the stacked state, the weak seal portion 2a is peeled off. The pressing can typically be performed by holding the bag body 100 in a state in which the small chamber 1X and the small chamber 1Y are folded and folded by the boundary seal portion 2 with a palm.
As the weak seal portion 2a is peeled off, the small chambers 1X and 1Y communicate with the cutting portion 5 provided in the weak seal portion 2a. As a result, the cutting unit 5 functions as a common outlet for the small chamber 1X and the small chamber 1Y that communicates the inside of each of the small chambers 1X and 1Y with the outside of the bag body 100.
Therefore, after the weak seal portion 2a is peeled off, if the folded chamber 1X and the chamber 1Y are pressed from the outside, the contents filled in the chambers 1X and 1Y are simultaneously pushed out from the cutting unit 5, Can be discharged to the same place. At this time, it is preferable to bend the bag body 100 so that the cutting part 5 is located at the front end of the folding of the bag body 100 in the boundary seal part 2 (see FIG. 2). This is because the contents are pushed out from the front end of the folding of the bag body by being bent in this way, and the contents can be smoothly discharged. In addition, there is also an advantage that a plurality of contents discharged from the cutting part can be easily discharged from the cutting part to the same place.

As described above, the bag body of the present invention is opened by forming a discharge port that connects the inside of each chamber and the outside of the bag body by a pressing operation of pressing the plurality of chambers from the outside in a folded state. At the same time, it is possible to simultaneously push out and discharge the contents accommodated in the small chambers in an isolated state. Typically, the user can open the bag and discharge the contents with one hand.
In addition, the cutting portion that functions as a discharge port by peeling off the weak seal portion is a common discharge port between the plurality of small chambers separated by the weak seal portion, and the contents filled in the plurality of small chambers A thing is discharged from one cutting part. Therefore, the bag body of the present invention has an advantage that different types of filled contents are discharged from the cut portion to the same place at the same time.
Furthermore, since the structure of the cutting part used as the discharge outlet of the content of the bag body of this invention is very simple, manufacture is easy and it is easy to discharge the content without waste.

Hereinafter, the structure of the bag of the present invention will be described in more detail.
In the present invention, the bag is not limited to a three-sided bag as shown in FIGS. The bag body shown in FIGS. 1 and 2 is a three-sided bag in which one flexible film is folded and the edge portions of three superimposed sides are sealed and sealed. It may be a four-sided bag in which films are stacked and the edge portions of the four stacked sides are sealed and sealed. Moreover, not only flat bags, such as a three-sided bag and a four-sided bag, For example, the bag body which has a gusset structure may be sufficient.
In addition, the bag of the present invention is provided with a cut portion and a rough surface portion serving as an opening for individually discharging contents contained in each small chamber in a sealing portion that seals each small chamber. It may be provided.
Moreover, in the form of FIG.1 and FIG.2, although demonstrated that it was possible to press a bag body by holding with a palm and to push out the contents, there is no limitation in particular in the magnitude | size of the bag body of this invention. . However, it is preferable that the bag of the present invention is typically a bag that can discharge the contents as described above by pressing with a finger.

Since the bag body of the present invention is formed of a flexible film, it can be folded at the boundary seal portion as described above, and the bag body can be opened and the contents can be pushed out by pressing from the outside of the bag body. is there.
The flexible film that forms the bag body is not particularly limited as long as it is a flexible film that is generally used in the manufacture of bags. For example, a single layer film may be used, and a base material layer as an outermost layer, It may be a laminated film composed of a plurality of layers such as an intermediate layer and an inner surface layer as the innermost layer.

  The base material layer is preferably a layer that forms the outermost layer of the bag and has functions such as printability, pinhole resistance, and impact resistance. Examples of the material for the base material layer include uniaxial or biaxially stretched films such as polyethylene terephthalate, polypropylene, polyamide, and ethylene vinyl alcohol copolymer, and laminates of these stretched films.

  When these stretched films or laminated films are required to have oxygen barrier properties and water vapor barrier properties as a bag application, examples of the material of the base material layer include metals such as aluminum, aluminum oxide, and oxidation. A vapor-deposited film in which an inorganic oxide such as silicon is vapor-deposited; a coat film in which polyvinylidene chloride, polyacrylic acid-based resin, or the like is coated (barrier coat); Moreover, paper, cellophane, etc. can also be used.

  The intermediate layer is preferably a layer having functions such as oxygen barrier properties, water vapor barrier properties, and tearability. As the material of the intermediate layer, when oxygen barrier properties and water vapor barrier properties are required for the use of the bag, for example, metal foil such as aluminum foil; metal such as aluminum, aluminum oxide, and silicon oxide A film on which an inorganic oxide such as a film is deposited; a film on which a polyvinylidene chloride, a polyacrylic acid resin, or the like is coated (barrier coat);

  The inner surface layer is preferably a layer that forms the innermost layer of the bag and can be heat sealed. As the material of the inner surface layer, for example, an unstretched film made of low-density polyethylene, high-density polyethylene, linear low-density polyethylene, polypropylene, ethylene vinyl acetate copolymer, ionomer resin, or the like, or these resins are extruded in layers. Things.

  The method of laminating these layers to form a laminated film is not particularly limited as long as it is a laminating method generally used for forming a laminated film. For example, the laminated film is formed by dry laminating using an adhesive. It may be a method, or a method of forming a laminated film by an extrusion laminating method using a thermoadhesive resin. Moreover, the method of forming a laminated film by the other lamination method may be sufficient.

In the sealing portion, the method of sealing the opposing surfaces of the overlapped flexible films is not particularly limited, for example, a method of sealing the opposing surfaces of the flexible films using an adhesive, For example, a method may be used in which the opposing surfaces of the flexible film are made of the same material and sealed by heat sealing.
The sealing strength of the sealing portion can ensure the sealing performance inside the bag body, and should be a strength that is stronger than the sealing strength of the weak sealing portion and does not peel off due to the pressure applied when the bag body is opened. Required. Although the specific sealing strength of a sealing part is not specifically limited, Usually, it is preferable that it is 5.0 N / 15mm or more, and it is more preferable that it is 10 N / 15mm or more.

  Here, “N / 15 mm” means the strength necessary for peeling the weak seal portion having a width of 15 mm into a T shape at room temperature. The seal strength can be measured according to JIS Z 0238: 1998.

The inside of the bag formed by the sealing portion is partitioned into a plurality of small chambers by a boundary seal portion that seals the inner surfaces facing each other of the flexible film.
As long as there are at least two or more small chambers formed inside the bag body, the number may be two as shown in FIGS. 1 and 2, or may be three or more (see FIG. 6).
In the bag of the present invention, the size of the small chamber, the arrangement form, etc. are not particularly limited. For example, in FIG. 1, the two small chambers 1X and 1Y formed in the bag body 100 are separated by a boundary seal portion 2 provided at the center of the bag body, and have substantially the same capacity. The chambers having different capacities may be formed by adjusting the installation position of the boundary seal portion. Moreover, the boundary seal | sticker part does not need to be provided substantially perpendicularly with the longitudinal direction of the bag body like FIG.

The boundary seal portion includes a weak seal portion that seals the inner surfaces of the flexible film in a peelable manner so as to connect between at least two small chambers separated by the boundary seal portion. Here, “the inner surfaces of the flexible film are releasably sealed so as to connect at least two small chambers” means that when the flexible film of the weak seal portion is peeled, the 2 This means that the weak seal portion is provided so that two or more small chambers communicate with each other. That is, the weak seal portion is continuously provided so as to cross the boundary seal portion between the at least two small chambers.
If the weak seal portion is provided so as to connect between at least two small chambers separated by the boundary seal portion, only a part of the boundary seal portion 2 is used as the weak seal portion 2a as in the bag body 101 of FIG. Alternatively, as shown in FIG. 1, the entire region of the boundary seal portion 2 may be the weak seal portion 2a.

  When the bag body filled with the contents is pressed from the outside with a finger or the like, the flexible film easily peels off at the weak seal portion, and during storage, the sealability between the small chambers can be secured. Seal strength is required. Although the specific sealing strength of a weak seal part is not specifically limited, It is preferable that it is about 1.0-10N / 15mm, and it is more preferable that it is about 1.0-5.0N / 15mm.

The method for forming the weak seal portion is not particularly limited, but, for example, a method of sealing the inner surfaces facing each other through an easy peel tape; the outermost surface layer of the facing flexible film, that is, the inner surface layer And a method of sealing the opposing inner surfaces of the flexible film by heat sealing, by appropriately adjusting the heat sealing temperature, pressure, and time, and the like. Can be mentioned.
Here, the “heat-sealable homogeneous material” refers to a material that has the property of being heat-sealed by heating and capable of being sealed.

The width of the weak seal portion can be arbitrarily selected according to the size of the bag and the amount and type of contents to be filled, but is preferably about 3.0 to 30 mm, and about 5.0 to 20 mm. It is more preferable that Here, the width of the weak seal portion refers to the distance between the small chambers separated by the weak seal portion. For example, the width of the weak seal portion 2a in FIG. The shape of the weak seal portion may be a shape having a stress concentration portion that concentrates pressure from the inside of the small chamber and promotes peeling of the weak seal portion.
In addition, when only a part of the boundary seal portion 2 is set as the weak seal portion 2a as in the bag body 101 of FIG. 3, the seal strength of the boundary seal portion 2b other than the weak seal portion 2a is between the small chambers during storage. There is no particular limitation as long as the sealing property can be secured. Usually, the sealing strength can be the same as that of the sealing portion. Moreover, the formation method of a boundary seal part is not specifically limited, The method similar to a sealing part is employable.

  As long as the cut portion penetrates one or both flexible films within the range of the weak seal portion within the range in which the sealing performance of the bag body can be secured, each small portion is separated by peeling of the weak seal portion. It functions as an outlet for the contents filled in the room.

The specific structure of the cutting part is not particularly limited. For example, in addition to the notch 5 such as the bag body 100 of FIG. 1, the hole 5 such as the bag body 102 of FIG. 4 may be used.
As the incision, as in the case of the bag body 100 in FIG. 1, in addition to the linear incision substantially perpendicular to the juxtaposition direction of the plurality of small chambers arranged in parallel with the boundary seal portion 2 as the boundary, the bag body in FIG. It may be a linear cut substantially parallel to the juxtaposition direction of a plurality of small chambers arranged side by side with the boundary seal portion 2 as a boundary, such as 103.

Since the contents are easily discharged, as shown in FIG. 1, a linear cut substantially perpendicular to the juxtaposed direction of a plurality of small chambers arranged side by side with the boundary seal portion 2 is preferable. Since such a cut extends substantially parallel to the folding direction in the boundary seal portion of the bag body, when the bag body 100 is folded in the boundary seal portion 2, the cutting portion 5 is positioned at the leading end of the folding. This is because the folding of the bag body 100 can be induced.
From the same point of view, when a hole is provided as a cutting part, a hole having a short diameter and a long diameter is substantially perpendicular to the juxtaposition direction of a plurality of small chambers in which the long diameter is arranged in parallel with the boundary seal part as a boundary That is, in other words, it is preferably provided so as to be substantially parallel to the folding direction in the boundary seal portion of the bag body.
In the present invention, “substantially parallel” includes not only a completely parallel state but also a state deviating from parallel in an angular range of about ± 10 degrees. In addition, the term “substantially vertical” includes not only a completely vertical state but also a state where it is deviated from the vertical within an angle range of about ± 10 degrees.

  Even if the cutting portion does not penetrate both flexible films constituting the weak seal portion as in the bag body 100 shown in FIG. 1, the cut portion is weakly sealed as long as it penetrates at least one flexible film. When the part is peeled off, each small chamber communicates with the outside of the bag through the cutting part, and the cutting part functions as a discharge port. When the cutting part penetrates only one flexible film, the bag body is boundary sealed so that the flexible film provided with the cutting part is outside when the bag body is folded at the boundary sealing part. By bending at the part, the discharge of the contents can be ensured.

Here, the bag body 104 having three small chambers 1X, 1Y, and 1Z will be described with reference to FIG.
In the bag body 104, the boundary seal portion 2 includes a boundary seal portion 2b that separates the small chamber 1Y and the small chamber 1Z, and a boundary seal portion that is a weak seal portion 2a that separates the small chamber 1X from the small chamber 1Y and the small chamber 1Z. The cutting part 5 is provided in the weak seal part 2a which divides | segments the small chamber 1X, the small chamber 1Y, and the small chamber 1Z among the boundary seal parts 2. FIG. In the weak seal portion 2a, the cutting portion 5 is provided from a region where the small chamber 1X and the small chamber 1Y face each other to a region where the small chamber 1X and the small chamber 1Z face each other.
Accordingly, in the same manner as in FIG. 3, the bag body 104 is folded at the weak seal portion 2a, which is the boundary seal portion, and is pressed from the outside of the bag body 104 to peel off the weak seal portion 2a. The interior of each of the small chambers 1X, 1Y, 1Z can be communicated with the outside of the bag body. That is, the three small chambers 1X to 1Z can be opened simultaneously, and the contents filled in the small chambers can be simultaneously pushed out from the cutting part 5.

  The bag body of the present invention is often used at the same time, but if it is pre-mixed in one bag, different types of contents or quality that may change its state over time It is suitable for the packaging of different types of contents that would cause a drop in

  As a combination of the contents to be filled in the bag of the present invention, for example, a medical drug solution and a solution thereof, ketchup and mustard, gum syrup and milk, a combination of fluid substances such as honey and margarine, etc. Can be mentioned.

  The contents filling body in which the bag body of the present invention is filled is filled with the different types of contents in the respective small chambers so that the contents are separated from each other without being mixed with each other. Can be made. Accordingly, the content filling material of the present invention, as exemplified above, is a different type of content that changes in its state over time when pre-blended in one bag. Alternatively, even different types of contents that cause quality degradation can be stored without causing state changes or quality degradation.

DESCRIPTION OF SYMBOLS 1X ... Small chamber 1Y ... Small chamber 1Z ... Small chamber 2 ... Boundary seal part 2a ... Weak seal part 2b ... Boundary seal part other than weak seal part 3 ... Flexible film 4 ... Sealing part 5 ... Cutting part 100 ... Bag body 101 ... Bag body 102 ... Bag body 103 ... Bag body 104 ... Bag body

Claims (4)

A bag formed of a flexible film,
The inside of the bag body is partitioned into a plurality of small chambers by a boundary seal portion formed by sealing the inner surfaces facing each other of the flexible film forming the bag body,
The boundary seal portion includes a weak seal portion that seals the inner surfaces of the flexible film so as to be peeled so as to connect between at least two small chambers separated by the boundary seal portion.
In the region of the weak seal portion, a cut portion that penetrates one or both of the flexible films is provided.   2. The bag according to claim 1, wherein the cut portion is a cut provided in a straight line substantially perpendicular to a direction in which a plurality of small chambers arranged side by side with the boundary seal portion as a boundary.   The said cutting part is a bag body of Claim 1 or 2 located in the edge part of bending, when the said bag body is bent in the said boundary seal part.   The content filling body which filled each small chamber of the bag body in any one of Claims 1 thru | or 3 with the content.

Images