JP2011068367A - Multi-chamber packaging bag and method for manufacturing the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a multi-chamber packaging bag that separately stores different types of contents into a plurality of small chambers, into which the interior of the bag is divided, until immediately before the contents are used, and that has high efficiency in accommodating contents, and to provide a method for manufacturing the same. <P>SOLUTION: The packaging bag formed from flexible film and having a plurality of small chambers includes: a pair of opposite flat portions 1 composing the front and rear of the bag; a pair of gusset-shaped sides 2, each of which inside keeps projections oriented toward the inside of the bag, and outside projections 5L and 5R oriented toward the outside of the bag are alternately formed and the number of the inside projections is lager than that of the outside projections by one; and at least one partition 3 disposed across the pair of flat portions such that the side edges of the partition 3 are located on the outside projections of the sides and the inside of the packaging bag is divided into the small chambers. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a multi-chamber packaging bag having a plurality of small chambers inside a bag, and a method for manufacturing the same.

  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 it in such a state, and a multi-chamber packaging bag having a plurality of small chambers (multi-chambers) has been proposed as a bag suitable for filling such contents.

  Furthermore, in recent years, in a multi-chamber packaging bag having such a function, the degree of expansion (filling amount, effective volume) when the contents are stored in the bag, compared to the size (area) of the folded bag. ), That is, a multi-chamber packaging bag to which a function of high content storage efficiency is added is demanded from the market because of its wide range of uses.

  Various improvements have been made in the technical field of multi-chamber packaging bags. For example, in Patent Document 1, a main storage chamber and a sub storage chamber connectable to the main storage chamber, and a main storage chamber and a sub storage chamber are isolated. A multi-chamber pouch having a partition part made of a peelable seal part or the like is disclosed. It is described that the multi-chamber pouch has a function of opening the partition portion by applying pressure during use and mixing the contents in the pouch.

  However, the multi-chamber pouch described in Patent Document 1 has a function of storing each content in an isolated state until just before use, but has not been studied to increase the content storage efficiency. .

Japanese Patent Laid-Open No. 11-227841

  It is an object of the present invention to store different types of contents in a plurality of small chambers provided by partitioning the inside of the bag in a state where each content is isolated until just before use, and the content storage efficiency is high. An object of the present invention is to provide a high multi-chamber packaging bag and a manufacturing method thereof.

  The present inventors diligently studied to achieve the above object, and by arranging a partition portion for partitioning the chambers in the packaging bag on the outer convex portion of the side portion of the gusset shape, in the front-rear direction of the bag. In order to complete the present invention based on these findings, it is found that small chambers are arranged in parallel and each content can be stored in an isolated state until just before use, and the content accommodation efficiency can be increased. Arrived.

That is, the multi-chamber packaging bag of the present invention is a packaging bag having a plurality of small chambers formed of a flexible film,
A pair of opposing flat portions constituting the front and back sides of the bag;
A gusset in which inner convex portions projecting inward of the bag and outer convex portions projecting outward of the bag are alternately formed, and the number of inner convex portions is one more than the number of outer convex portions. A pair of sides having a shape;
It is disposed between the pair of plane portions, and has a side edge portion located on the outer convex portion of the side portion and having at least one partition portion for partitioning the small chambers in the packaging bag. It is a multi-chamber packaging bag.

  In the multi-chamber packaging bag of the present invention, it is preferable that the width dimension between the outer convex parts of the pair of side parts is equal to or larger than the width dimension of the flat part.

  In the multi-chamber packaging bag of the present invention, one side edge portion of the partition portion is located on the outer convex portion of the side portion, and the other side edge portion is sandwiched between the flat portion and the side portion. It can be made into the form currently made.

  In the multi-chamber packaging bag of the present invention, one side edge portion of the partition portion is located on the outer convex portion of the side portion, and the other side edge portion and opposing surfaces of members adjacent thereto are arranged. It can be set as the form sealed.

  In the multi-chamber packaging bag of the present invention, the seal between the opposing surfaces of the other side edge and the adjacent member may be a peelable seal.

  In the multi-chamber packaging bag of the present invention, a pouring tool may be attached to the multi-chamber packaging bag.

  The content filler of the present invention is a content filler obtained by filling the above-described multi-chamber packaging bag of the present invention with the content.

The method for producing the multi-chamber packaging bag of the present invention includes:
A step of preparing a pair of flat part members, a pair of side part members, and a partition part member, both of which are formed of a flexible film;
By folding the side member, an inner convex portion protruding toward the inner side of the bag and an outer convex portion protruding toward the outer side of the bag are alternately formed, and the number of inner convex portions is the outer convex portion. The process of making one more gusset shape than the number of parts,
Sealing the end of the partition member and the outer convex portion of the side member to form an integrated product of the partition member and the side member;
When the integrated body is sandwiched between the pair of members for the flat portion to form an overlapped body, and each member of the overlapped body is not sealed, an edge portion is formed when a multi-chamber packaging bag is formed. A step of sealing an edge portion other than an edge portion serving as a filling port in a portion to be,
It is a manufacturing method of the multi-chamber packaging bag characterized by including.

  According to the present invention as described above, different types of contents can be stored in a plurality of compartments provided by partitioning the inside of the bag in a state where each content is isolated until just before use. A multi-chamber packaging bag having high accommodation efficiency and a method for manufacturing the same are provided.

FIG. 1 is a perspective view showing a positional relationship between members (a plane portion 1, a side portion 2, and a partition portion 3) constituting a multi-chamber packaging bag according to an embodiment of the present invention. 2A to 2C are cross-sectional views showing variations of the gusset shape of the side part 2. 3A to 3C show the arrangement of the side edge portion of the partition portion and the outer convex portion of the side portion and the arrangement of the side edge portion of the flat portion and the side edge portion of the side portion in the multi-chamber packaging bag of the present invention. FIG. 4A is a perspective view showing the multi-chamber packaging bag 101 according to the first embodiment of the present invention, and FIG. 4B is a cross-sectional view taken along the line AA in FIG. 4A. FIG. 5 is a perspective view showing a content filling body 102 according to the second embodiment of the present invention in which the multi-chamber packaging bag 101 according to the first embodiment of the present invention is filled with the content. 6A is a perspective view showing a multi-chamber packaging bag 103 according to the third embodiment of the present invention, and FIG. 6B is a cross-sectional view taken along line AA in FIG. 6A. FIG. 7A is a perspective view showing a multi-chamber packaging bag 104 according to the fourth embodiment of the present invention, and FIG. 7B is a cross-sectional view taken along the line AA in FIG. 7A. FIG. 8A is a perspective view showing a multi-chamber packaging bag 105 according to the fifth embodiment of the present invention, and FIG. 8B is a cross-sectional view taken along the line AA in FIG. 8A. FIG. 9 is a cross-sectional view showing a multi-chamber packaging bag 106 according to the sixth embodiment of the present invention. FIG. 10 is a sectional view showing a multi-chamber packaging bag 107 according to the seventh embodiment of the present invention. FIG. 11 is a cross-sectional view showing a multi-chamber packaging bag 108 according to the eighth embodiment of the present invention. FIG. 12 is a sectional view showing a multi-chamber packaging bag 109 according to the ninth embodiment of the present invention. FIG. 13: is sectional drawing which shows the multi-chamber packaging bag 110 concerning the 10th Embodiment of this invention. FIG. 14 is a sectional view showing the multi-chamber packaging bag 111 according to the eleventh embodiment of the present invention. FIG. 15 is a sectional view showing a multi-chamber packaging bag 112 according to the twelfth embodiment of the present invention. FIG. 16: is sectional drawing which shows the multi-chamber packaging bag 113 concerning 13th embodiment of this invention. FIG. 17: is sectional drawing which shows the multi-chamber packaging bag 114 concerning the 14th embodiment of this invention. 18A to 18C are diagrams illustrating a method for producing the multi-chamber packaging bag of the present invention. 18D to 18E are views for explaining a method of manufacturing the multi-chamber packaging bag of the present invention. 18F to 18G are diagrams illustrating a method for producing the multi-chamber packaging bag of the present invention.

The multi-chamber packaging bag of the present invention is a packaging bag having a plurality of small chambers formed of a flexible film,
A pair of opposing flat portions constituting the front and back sides of the bag;
A gusset in which inner convex portions projecting inward of the bag and outer convex portions projecting outward of the bag are alternately formed, and the number of inner convex portions is one more than the number of outer convex portions. A pair of sides having a shape;
It is disposed between the pair of plane portions, and has a side edge portion located on the outer convex portion of the side portion and having at least one partition portion for partitioning the small chambers in the packaging bag. To do.

  If the flexible film which comprises the plane part 1, the side part 2, and the partition part 3 of the multi-chamber packaging bag concerning embodiment of this invention is a flexible film generally used for manufacture of a bag, it will be especially limited. For example, it may be a single layer film, or may be a laminated film composed of a plurality of layers such as a base material layer as an outermost layer, an intermediate layer, and a sealant layer as an 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 are required to have oxygen barrier properties and water vapor barrier properties as bags, examples of the material of the base material layer include metals such as aluminum, and aluminum oxide and silicon oxide. A vapor-deposited film in which an inorganic oxide 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 sealant layer is preferably a layer that forms the innermost layer of the bag and can be heat sealed. As the material of the sealant 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 film is laminated by a dry laminating method using an adhesive. The method of forming may be sufficient, and the method of forming a laminated | multilayer film by the extrusion laminating method using thermoadhesive resin may be sufficient. Moreover, the method of forming a laminated film by the other lamination method may be sufficient.

Moreover, it is preferable that the material which comprises the innermost layer of the plane part 1 and the side part 2 is a heat sealable homogeneous material from a viewpoint of bonding together by heat sealing.
Here, the “heat-sealable homogenous material” refers to a material that has the property of being thermally fused by heating and capable of being joined.
Furthermore, in the partition part 3, as shown in FIG. 1, when arrange | positioning so that the side edge part 3s of a partition part may be pinched | interposed into the outer convex part 5 of the side part 2, the upper end part 3t and lower end part 3b of a partition part Is attached to both of the pair of flat portions 1, 1, that is, when the outer convex portion 5 of the side portion 2 or the pair of flat portions 1, 1 are attached to both surfaces of the partition portion 3, the partition Both outermost layers of the part 3 are preferably layers capable of heat sealing.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a perspective view showing a positional relationship between members (a plane portion 1, a side portion 2, and a partition portion 3) constituting a multi-chamber packaging bag according to an embodiment of the present invention.

  As shown in FIG. 1, the multi-chamber packaging bag of the present invention includes a pair of opposed flat portions 1, 1 constituting a front side and a rear side of the bag, a pair of side portions 2, 2 having a gusset shape, At least 1 which is disposed between the flat portions 1 and 1 and substantially parallel to the flat portion, and whose side edge 3s is located on the outer convex portion 5 of the side portion 2 and partitions the small chambers in the packaging bag. It consists of two partitions 3. Each member constituting the packaging bag is formed of a flexible film and can be bent.

The side portions 2 are alternately formed with inner convex portions 4 projecting inward of the packaging bag and outer convex portions 5 projecting outward of the bag, and the number of the inner convex portions 4 is outward convex. It has one more gusset shape than the number of parts 5.
Here, the “inner convex portion” refers to a fold line portion that can be folded in a V-shaped cross section toward the inside of the packaging bag or the vicinity thereof, while the “outer convex portion” refers to the outside of the bag. A fold line portion that can be folded back in a V-shaped cross section toward the direction or the vicinity thereof.

In multi-chamber packaging bag of the present invention, the width W ₂ between the outer protrusions 5 of the pair of side 2, 2 is not particularly limited, even the width of the flat portion W ₁ greater than or equal to Although it is good, from the viewpoint of improving the expansibility of the bag and increasing the accommodation efficiency of the contents, as shown in FIG. 1, the width dimension between the outer convex parts 5 is larger than the width dimension of the plane part 1. It is preferable that
Here, the “width dimension between the outer convex portions of the pair of side portions” refers to the width dimension from one outer convex portion 5 of the side portion 2 to the other outer convex portion 5 of the side portion 2. Say. In addition, the “width dimension of the plane portion” refers to a width dimension from one side edge portion 1 s of the plane portion 1 to the other side edge portion 1 s of the plane portion 1.

In the example shown in FIG. 1, the width dimension W ₂ between the outer convex parts 5 and 5 is longer than the width dimension W ₁ of the plane part 1. Since the partition part 3 in this example has both side edges 3 s positioned on the outer convex parts 5, 5, the width dimension W ₃ of the partition part 3 corresponds to the width dimension W ₂ between the outer convex parts 5, 5. It has a length.

In the example shown in FIG. 1, the pair of flat portions 1, 1, the pair of side portions 2, 2, and the partition portion 3 are separate and independent members, but two or more of these members are continuously developed. One flexible film having a bent shape may be bent.
For example, a flexible film having an unfolded shape in which a pair of flat portions 1 and 1 and a pair of side portions 2 and 2 are continuous is folded to form a pair of flat portions 1 and 1 and a pair of side portions 2 and 2. The part which becomes becomes may be divided.

2A to 2C are cross-sectional views showing variations of the gusset shape of the side part 2.
As a gusset shape of the side part 2, as shown in FIG. 2A, for example, one having one outer convex part 5 between a pair of inner convex parts 4 and having a single gusset can be exemplified.
In addition to FIG. 2A, as shown in FIG. 2B and FIG. 2C, the inner convex portions 4 and the outer convex portions 5 are alternately formed, and two or more outer convex portions 5 are provided. It may be provided with a plurality of gussets whose folds become the inner convex portions 4.
In the present invention, the depth of the folded portion 5b of the outer convex portion of the side portion 2 is not particularly limited, but has a depth corresponding to the inner volume of the packaging bag.

  The side portion 2 has a gusset shape as described above in which the edges of two or more flexible films are joined together in addition to the gusset shape as described above in which one flexible film is bent. May be.

3A to 3C show the arrangement of the side edge portion 3s of the partition portion and the outer convex portion 5 of the partition portion, and the side edge portion 1s of the flat portion and the side edge portion of the side portion in the multi-chamber packaging bag of the present invention. It is a cross-sectional view which shows arrangement | positioning with 2s.
The partition portion 3 is disposed between the pair of plane portions 1 and 1, and the side edge portion 3 s is located on the outer convex portion 5 of the side portion 2.
Here, “the side edge portion 3s of the partition portion is positioned on the outer convex portion 5 of the side portion 2” means that the side edge portion 3s of the partition portion is positioned so as to be in direct contact with the polygonal line of the outer convex portion 5. In addition to pointing, the side edge 3 s of the partition portion does not directly contact the fold line of the outer convex portion 5, but also refers to being located in the vicinity of the outer convex portion 5. In addition, when the vicinity of the side edge 3s of the partition portion is bent, in addition to pointing that the bent base 3s1 is in direct contact with the fold line of the outer convex portion 5, the bent base 3s1 is Although it does not touch the polygonal line of the outer convex part 5 directly, it points out also being located in the vicinity of the outer convex part 5.

The arrangement of the side edge portion 3s of the partition portion is not particularly limited as long as the side edge portion 3s of the partition portion is positioned on the outer convex portion 5.
For example, as shown in FIG. 3A, both sides of the side edge portion 3s of the partition portion and the opposing surfaces near the fold line of the outer convex portion 5 are sealed, and the partition portion 3 is formed of a pair of plane portions 1 and 1. You may arrange | position so that it may interpose.
Also, as shown in FIGS. 3B and 3C, one side of the side edge 3 s of the partition part and the opposing surface near the fold line of the outer convex part 5 are sealed, and the partition part 3 is a pair of plane parts 1, 1. It may be arranged so as to intervene between 1.

In the present invention, the number of the partition portions 3 arranged on the outer convex portion 5 of the side portion 2 is not particularly limited, but may be appropriately selected according to the number of small chambers to be juxtaposed in the front-rear direction of the bag. it can.
When two or more partitions 3 are used, three or more small chambers can be juxtaposed in the front-rear direction of the bag.
For example, when two or more partitions 3 are used and two or more outer projections 5 of the side 2 are provided, the side edges 3s of the two or more partitions are the same outside. You may arrange | position to a convex part and may be arrange | positioned to a different external convex part, respectively.

4A is a perspective view showing the multi-chamber packaging bag 101 according to the first embodiment of the present invention, and FIG. 4B is a cross-sectional view taken along the line AA in FIG. 4A.
The cross-sectional view shown in FIG. 4B means a view of the perspective view shown in FIG. 4A cut along the cross-section AA and viewed from the arrow direction.
Hereinafter, the cross-sectional views shown in FIGS. 6 to 17 are used in the same meaning as the cross-sectional view shown in FIG. 4B for each packaging bag.

In the multi-chamber packaging bag 101 of the present invention, the members shown in FIG. 1 are sealed along the edges other than the upper edge that serves as a filling port, and each of the small chambers 9X, 9X, 9Y is an embodiment of a multi-chamber packaging bag in which 9Y is juxtaposed.
In multi-chamber packaging bag 101, one side edge 3s _L and the other side edge portion 3s _R of the partition portion is for location in each of the outer protrusions ₅ L, _{5 R} of the pair of side portions 2, 2 is there.

  When filling the multi-chamber packaging bag of the present invention and discharging the content as a content filling body, the content tends to remain at the corner of the packaging bag. From the viewpoint of not accumulating, it is preferable that a skew seal portion 15 as shown in FIG. 4A is formed on the lower end side of the multi-chamber packaging bag of the present invention.

  The skew seal portion 15 is formed by separating the inner surfaces facing each other in the four corners on the lower end side of the packaging bag and the outer convex portions of the side portion 2 from the side edge seal portion 6 of the partition portion and the side edge seal of the flat portion. It is formed by sealing in an oblique shape from a predetermined position of the portion 7 to a predetermined position of the lower end seal portion 8 of the flat surface portion.

FIG. 5 is a perspective view showing a content filling body 102 according to the second embodiment of the present invention in which the multi-chamber packaging bag 101 according to the first embodiment of the present invention is filled with the content.
In the multi-package packaging bag 101 shown in FIG. 4, the content filling body 102 of the present invention is filled with different types of contents X and Y from the upper end side in the opened small chambers 9X and 9Y, respectively. The upper end portion 1t of each planar portion and the upper end portion 3t of the partition portion are integrated along the upper end portion 3t of the partition portion in a state where the upper end portion 3t is sandwiched between the upper end portions 1t of the pair of plane portions. In this embodiment, the bag can be sealed in a liquid-tight or air-tight state.

6A is a perspective view showing a multi-chamber packaging bag 103 according to the third embodiment of the present invention, and FIG. 6B is a cross-sectional view taken along line AA in FIG. 6A.
A multi-chamber packaging bag 103 of the present invention has a narrow partition portion than the width dimension between the outer protrusions of the width dimension of the pair side of the partition portion, one side edge 3S _L of the partition portion, the side parts while located outside the convex portion 5 _L of, the other side edge 3S _R of the partition portion, except the one side, that therewith the opposing planar portion 1 inner surface is sealed This is an embodiment similar to the first embodiment of the present invention.
As shown in FIGS. 6A and 6B, the multi-chamber packaging bag 103 includes two compartments 9 </ b> X, a small chamber 9 </ b> X having a relatively large capacity volume and a small chamber 9 </ b> Y having a relatively small capacity volume, in the front-rear direction of the bag. It is divided into small chambers, and each of the small chambers 9X and 9Y can be filled with two different contents X and Y.

Here, the seal of the one side of the other side edge portion 3S _R of the partition portion, and which on opposite planar portion 1 of the inner surface may be sealed with a release hard seal strength like the other sealing portion However, as shown in FIG. 6A, a peelable seal portion 12 sealed with a peelable seal strength may be formed.

  Further, the sealing strength of the peelable seal portion 12 is not particularly limited as long as the peelable seal portion 12 can be easily peeled when the bag filled with the contents is pressed by hand or palm. , Preferably about 5.0 to 15.0 N / 15 mm.

  Here, “N / 15 mm” means the strength required to peel the peelable seal portion 12 having a width of 15 mm in a T shape at room temperature, and the seal strength is measured based on JIS Z 0238: 1998. .

  On the other hand, all the seal strengths of the seal portions other than the peelable seal portion 12 are strong enough to seal the packaging bag and withstand the pressure of the hand or palm stronger than the seal strength of the peelable seal portion 12. It is sealed.

  When the seal on the side edge of the partition is a peelable seal, the pressure inside the bag rises by pressing with the hand or palm when using the bag, and the pressure is transmitted to the contents in the multi-chamber. Thus, the peelable seal portion 12 acts as a peeling force so that the contents of the one chamber can be flown into the other chamber, and different types of contents stored in each chamber. Can be mixed.

FIG. 7A is a perspective view showing a multi-chamber packaging bag 104 according to the fourth embodiment of the present invention, and FIG. 7B is a cross-sectional view taken along the line AA in FIG. 7A.
A multi-chamber packaging bag 104 of the present invention has substantially the same partition section as the width dimension between the outer protrusions of the width dimension of the pair side of the partition portion, one side edge 3S _L of the partition portion, the side parts while located outside the convex portion 5 _L of the other side edge 3S _R of the partition portion is sandwiched between the side edge portions 2s _R side edge 1s _R and the side of the planar portion It is an embodiment similar to the first embodiment of the present invention, except that it is sealed along the side edge 3 s _R of the partition in the state where it has been removed.
As shown in FIGS. 7A and 7B, the multi-chamber packaging bag 104 includes a total of two chambers 9X having a relatively large volume and a chamber 9Y having a relatively small volume in the front-rear direction of the bag. It is divided into small chambers, and each of the small chambers 9X and 9Y can be filled with two different contents X and Y.

In the multi-chamber packaging bag according to the embodiment of the present invention, it is preferable to provide the opening assisting means 13 from the viewpoint of facilitating the opening of the bag with fingers and improving the convenience of the bag.
Although “notch” is illustrated in FIG. 5 as the opening assisting means 13, it is not limited to this. In addition to the “notch”, for example, when provided on the side edge seal portion 6 of the partition portion and the side edge seal portion 7 of the flat portion, shapes such as a rough surface and a scar are typically exemplified. Further, the tape may be arranged on the inner surface of the flat portion so as to cross from the side portion of the packaging bag to the side portion, and the end portion of the tape may have a knob that can be picked from the outer surface.

  In the multi-chamber packaging bag according to the embodiment of the present invention, from the viewpoint of facilitating the removal of the filled contents and improving the convenience of the bag, a pouring tool 14 serving as a spout is attached to the bag. May be.

FIG. 8A is a perspective view showing a multi-chamber packaging bag 105 according to the fifth embodiment of the present invention, and FIG. 8B is a cross-sectional view taken along the line AA in FIG. 8A.
The multi-chamber packaging bag 105 of the present invention is an embodiment in which the pouring tool 14 is attached to each of the small chambers 9X and 9Y in the multi-chamber packaging bag 101 shown in FIG. Can be dispensed separately.

The shape of the dispensing tool 14 varies depending on the contents and application and is not particularly limited.
The dispensing tool 14 may be used not only as a spout for food, such as used for direct drinking as a mouth, but also in various shapes in various fields, for example, by pushing or covering a medical rubber stopper. The pouring tool of the shape to close may be sufficient.
When the contents are not used up all at once, a cap having a mechanism for closing the opening of the pouring tool 14 can be provided.
The place where the pouring tool is formed is not particularly limited. For example, an pouring tool that leads to any small chamber in the bag may be attached near the side or lower end of the packaging bag.

  The contents of the multi-chamber packaging bag according to the embodiment of the present invention are not particularly limited. For example, the different types of contents to be filled in the embodiment 101 according to the first embodiment, the embodiment 104 according to the fourth embodiment, and the embodiment 105 according to the fifth embodiment are not mixed. What is used simultaneously is preferable. For example, a combination of fluid materials such as mustard and ketchup, margarine and jam, a combination of fluid materials such as sugar and cream and solid materials, or a combination of individually packaged solid materials.

  In addition, different types of contents to be filled in the embodiment 103 according to the third embodiment are mixed immediately before use because the contents change over time if mixed beforehand, resulting in quality deterioration. It is preferable to mix it immediately before use or to make it delicious. For example, combinations of fluid substances such as soy milk and a coagulant, medical infusion to be mixed, dressings and sesame or powdered cheese, combinations of fluid substances such as water and tea powder, and solids.

Although the multi-chamber packaging bag of the first to fifth embodiments of the invention described so far has two small chambers, in the present invention, the number and width dimensions of the partition part 3, and the side part By appropriately changing the shape of the second gusset, a multi-chamber packaging bag having three or more small chambers can be easily designed.
Hereinafter, a multi-chamber packaging bag having three or more small chambers will be described.

FIG. 9 is a cross-sectional view showing a multi-chamber packaging bag 106 according to the sixth embodiment of the present invention.
The multi-chamber packaging bag 106 of the present invention has two partition portions 3-1 and 3-2 in which the width dimension of the partition portion is substantially the same as the width dimension between the outer convex portions of the pair of side portions. One side edge portions 3s _L1 and 3s _L2 of the partition portions 3-1 and 3-2 are located on the same outer convex portion 5 _L on the side portion, and the two partition portions 3-1 and 3-2 other side edge portion 3s _R1 and 3s _R2 of, except that they are located in the same outer protrusions 5 _R of the other side, is similar to the first embodiment of the present invention.
As shown in FIG. 9, the multi-chamber packaging bag 106 includes small chambers 9X and 9Y having gussets on the side portion 2 in the front-rear direction of the bag by the two partition portions 3-1 and 3-2, and the two Between the two small chambers 9X and 9Y, the side portion 2 is divided into a total of three small chambers, a flat bag-shaped small chamber 9Z that has no gusset, and each of the three small chambers 9X, 9Y, and 9Z has three different contents. X, Y, Z can be filled.

FIG. 10 is a sectional view showing a multi-chamber packaging bag 107 according to the seventh embodiment of the present invention.
In the multi-chamber packaging bag 107 of the present invention, the pair of side portions 2 and 2 alternately form the inner convex portions 4 and the outer convex portions 5, and have two outer convex portions 5. Is a gusset shape where the inner folds become the inner convex portions 4, and the two partition portions 3-1 and 3-2 have the same width dimension between the outer convex portions of the pair of side portions. The one side edge portions 3s _L1 and 3s _L2 of the two partition portions 3-1 and 3-2 are located one by _{one on} the outer convex portions 5L ₁ and 5L ₂ respectively, and the two partition portions other side edge portion _{3s R1} and _{3s R2} parts 3-1 and 3-2, except that they are located one by one on each outer protrusions _5R 1, 5R ₂ respectively, a first embodiment of the present invention It is the same as the form.
As shown in FIG. 10, the multi-chamber packaging bag 107 is a total of small chambers 9X, 9Y, and 9Z having gussets on the side portion 2 in the front-rear direction of the bag by the two partition portions 3-1 and 3-2. It is divided into three small chambers, and each of the small chambers 9X, 9Y, 9Z can be filled with three different contents X, Y, Z.

FIG. 11 is a cross-sectional view showing a multi-chamber packaging bag 108 according to the eighth embodiment of the present invention.
The multi-chamber packaging bag 108 of the present invention has two partition parts 3-1 and 3-2 in which the width dimension of the partition part is narrower than the width dimension between the outer convex parts of the pair of side parts. One side edge portions 3s _L1 and 3s _L2 of the partition portions 3-1 and 3-2 are positioned on the same outer convex portion 5 _L of the side portion, whereas the other side edge portion of the partition portion 3S _R1 is sealed on its one side and the inner surface of the flat portion 1-1 opposite thereto, and the other side edge portion 3S _R2 of the partition portion is on one side and the flat portion 1- opposite thereto. The embodiment is the same as the first embodiment of the present invention except that the inner surface of 2 is sealed.
In addition, the seal | sticker with the peelable seal | sticker may be sufficient as the seal | sticker of the one side of the other side edge part 3S _R1 and 3S _R2 of a partition part, and the inner surface of each plane part 1-1 and 1-2 facing this. .

FIG. 12 is a sectional view showing a multi-chamber packaging bag 109 according to the ninth embodiment of the present invention.
The multi-chamber packaging bag 109 of the present invention has two partition parts 3-1 and 3-2 in which the width dimension of the partition part is substantially the same as the width dimension between the outer convex parts of the pair of side parts. One side edge portions 3s _L1 and 3s _L2 of the partition portions 3-1 and 3-2 are located on the same outer convex portion 5 _L of the side portion, whereas the other side edge portion of the partition portion 3s _R1 is in a state of being sandwiched between the side edges 1s _R1 and side side edge 2s _R1 of the flat portion, is sealed along the side edge portions 3s _R1 of the partition portion, and, of the partition portion The other side edge portion 3s _R2 is sealed along the side edge portion 3s _R2 of the partition portion while being sandwiched between the side edge portion 1s _R2 of the plane portion and the side edge portion 2s _R2 of the side portion. Except for this, the embodiment is the same as the first embodiment of the present invention.

FIG. 13: is sectional drawing which shows the multi-chamber packaging bag 110 concerning the 10th Embodiment of this invention.
The multi-chamber packaging bag 110 of the present invention has a single partition portion 3-1 in which the width dimension of the partition portion is substantially the same as the width dimension between the outer convex portions of the pair of side portions, and the width dimension of the partition portion is a pair of sides. One partition portion 3-2 narrower than the width dimension between the outer convex portions of the portion, and one side edge portions 3s _L1 and 3s _L2 of the two partition portions 3-1 and 3-2 are: while located in the same outer protrusions 5 _L of the side, the other side edge portion 3s _R1 of the partition portion 3-1 is located in the outer protrusions 5 _R of the other side, the partition The other side edge 3s _R2 of the part 3-2 is the same as that of the first embodiment of the present invention, except that one side of the part 3-2 and the one side of the partition part 3-1 opposite to the side 3a are sealed. It is an embodiment.
Incidentally, the seal of the one side of the other side edge portion 3s _R2 of the partition portion 3-2, and one surface of the opposite partition portion 3-1 which may be a peelable seal.

FIG. 14 is a sectional view showing the multi-chamber packaging bag 111 according to the eleventh embodiment of the present invention.
The multi-chamber packaging bag 111 of the present invention has a partition portion 3-1 in which the width dimension of the partition portion is substantially the same as the width dimension between the outer convex portions of the pair of side portions, and the width dimension of the partition portion is a pair of sides. One partition portion 3-2 narrower than the width dimension between the outer convex portions of the portion, and one side edge portions 3s _L1 and 3s _L2 of the two partition portions 3-1 and 3-2 are: while located in the same outer protrusions 5 _L of the side, the other side edge portion 3s _R1 of the partition portion 3-1 is located in the outer protrusions 5 _R of the other side, the partition The other side edge portion 3s _R2 of the portion 3-2 is the same as that of the first embodiment of the present invention except that one surface thereof and the inner surface of the flat portion 1-2 opposed thereto are sealed. It is an embodiment.
The seal between the one side surface of the other side edge 3s _R2 of the partition portion 3-2 and the inner surface of the flat surface portion 1-2 opposite thereto may be a peelable seal.

FIG. 15 is a sectional view showing a multi-chamber packaging bag 112 according to the twelfth embodiment of the present invention.
The multi-chamber packaging bag 112 of the present invention has two partition portions 3-1 and 3-2 in which the width dimension of the partition portion is substantially the same as the width dimension between the outer convex portions of the pair of side portions. The side edge portions 3s _L1 and 3s _L2 of the partition portions 3-1 and 3-2 are located on the same outer convex portion 5 _L of the side portion, whereas the other side portion of the partition portion 3-1. side edges _{3s R1} is located outside the convex portion _{5 R} of the other side, the other side edge portion _{3s R2} of the partition portion 3-2, the side of the side edge portion _{1s R2} and the side of the planar portion The embodiment is the same as the first embodiment of the present invention, except that it is sealed along the side edge 3s _R2 of the partition while being sandwiched between the edge 2s _R2 .

FIG. 16: is sectional drawing which shows the multi-chamber packaging bag 113 concerning 13th embodiment of this invention.
The multi-chamber packaging bag 113 of the present invention includes a single partition 3-1 in which the width of the partition is substantially the same as the width between the outer convex portions of the pair of side portions, and the width of the partition is the pair of sides. One side edge portion 3s _L1 of the partition portion 3-1, which is narrower than the width dimension between the outer convex portions of the first portion, and the side edge portion 1s _L1 of the plane portion side In the state of being sandwiched between the side edge 2s _L1 of the part and sealed along the side edge 3s _L1 of the partition part, the other side edge 3s _R1 of the partition part 3-1 is , located outside the convex portion 5 _R of the other side, one side edge portion 3s _L2 of the partition portion 3-2, while located outside the convex portion 5 _L of the side, partition other side edge portion 3s _R2 parts 3-2, and one side, except that the inner surface of the opposing flat portion 1-2 which is sealed, a first embodiment of the present invention It is on purpose similar embodiment.

FIG. 17: is sectional drawing which shows the multi-chamber packaging bag 114 concerning the 14th embodiment of this invention.
The multi-chamber packaging bag 114 of the present invention has two partition parts 3-1 and 3-2 in which the width dimension of the partition part is substantially the same as the width dimension between the outer convex parts of the pair of side parts. One side edge 3s _L1 of 3-1 is sandwiched between the side edge 1s _L1 of the plane part and the side edge 2s _L1 of the side part, and extends along the side edge 3s _L1 of the partition part. while it is sealed Te, the other side edge portion 3s _R1 of the partition portion 3-1 is located in the outer protrusions 5 _R of the other side, one side edge of the partitioning portion 3-2 parts _{3s L2} is while located outside the convex portion _{5 L} of the side, the other side edge portion _{3s R2} of the partition portion 3-2, the side of the side edge portion _{1s R2} and the side of the planar portion in a state of being sandwiched between the edge 2s _R2, except that it is sealed along the side edge portions 3s _R2 of the partition portion, similar to the real in the first embodiment of the present invention It is in the form.

  Below, the manufacturing method of the multi-chamber packaging bag concerning embodiment of this invention is demonstrated concretely. In the description, the same reference numerals as those assigned to the corresponding parts of the completed packaging bag are given as the reference numerals attached to the members for forming the bags and the parts in the members.

  In the production method of the present invention, a method for sealing between the members is not particularly limited. For example, a method in which the opposing surfaces of the flexible film constituting each member are sealed using an adhesive; A typical example is a method in which the material of the opposing outermost surface layer of the flexible film constituting each member is a heat-sealable homogeneous material and is sealed by heat sealing.

  Moreover, although the method of sealing the partition part 3 and the plane part 1 or the surface where the partition parts 3 oppose each other with the intensity | strength which can peel is not specifically limited, For example, the surfaces which oppose via an easy peel tape are joined. And sealing with peelable strength; the material of the outermost surface layer of the flexible film constituting the opposing surfaces is made of a heat-sealable homogeneous material, and the temperature, pressure, and time of the heat seal are appropriately set. The method of adjusting and sealing with the peelable intensity | strength by heat sealing; etc. are mentioned typically.

Although the method of manufacturing the multi-chamber packaging bag of this invention is not specifically limited, For example, the method shown below is mentioned typically.
The method for producing the multi-chamber packaging bag of the present invention includes:
A step of preparing a pair of flat part members, a pair of side part members, and a partition part member, both of which are formed of a flexible film;
The side member is folded to form inward convex portions protruding toward the inner side of the bag and outer convex portions protruding toward the outer side of the bag, and the number of the inner convex portions is outwardly convex. The process of making one more gusset shape than the number of parts,
Sealing the end of the partition member and the outer convex portion of the side member to form an integrated product of the partition member and the side member;
When the integrated body is sandwiched between the pair of members for the flat portion to form an overlapped body, and each member of the overlapped body is not sealed, an edge portion is formed when a multi-chamber packaging bag is formed. A step of sealing an edge portion other than an edge portion serving as a filling port in a portion to be,
It is characterized by including.

In the following, “upper end, lower end, side end” refers to a positional relationship when a multi-chamber packaging bag is formed.
18A to 18G are views for explaining a method for producing the multi-chamber packaging bag of the present invention.
In the first method, first, as shown in FIG. 18A, a pair of flat member 1, 1, a pair of side members 2, 2 and a partition member 3 are prepared.
The partition member 3 prepared here is a partition member having a width dimension larger than the width dimension of the plane part 1.

Next, as shown in FIG. 18B, a pair of side members 2, 2 are prepared in accordance with the preparation of the partition member 3 having a width dimension larger than the width dimension of the plane portion 1 in FIG. 18A. Are folded to form the inner convex portions 4 and the outer convex portions 5 alternately so that the depth of the folded portion 5b of the outer convex portion is deeper than the depth of the side edge portion 2s of the side portion, The number of convex portions is one more gusset shape than the number of outer convex portions. In this example, the side member 2 is bent so as to have a gusset shape having two inner convex portions and one outer convex portion.
Next, as shown in FIG. 18C, the end of the partition member 3 corresponding to the side edge 3s when the packaging bag is formed is disposed on the outer convex portion 5 of the gusset-shaped side member 2. Let
Next, as shown in FIG. 18D, the side member 2 and the partition member 3 are sealed along the end of the partition member 3 to form an integrated product (2 + 3). By this seal, the side edge seal portion 6 of the partition portion is formed.

Next, as shown in FIG. 18E, the integrated product (2 + 3) is sandwiched between the pair of planar portion members 1 and 1, and as shown in FIG. 18F, they are aligned to form an overlapped body (1 + 2 + 3). .
In addition, in 18F, the folding line of the inner side convex part 4 of a side part is seen through, and it shows with a dotted line.
Next, as shown to FIG. 18G, in the part which each member of a superposition body (1 + 2 + 3) is not sealed, when forming a multi-chamber packaging bag, the end used as a filling port among the parts used as an edge part When the flat portion members 1 and 1 and the integrated product (2 + 3) are sealed along the edge portions other than the edge portions, that is, the both side edge portions and the lower end edge portions when the multi-chamber packaging bag is formed, The side edge seal portion 7 and the lower end seal portion 8 of the flat portion are formed, and a multi-chamber packaging bag having two small chambers is obtained.

  In the obtained multi-chamber packaging bag, in order to prevent the contents from being collected in the corner, as shown in FIG. 18G, the four corners on the lower end side and the outer convex portions of the side part 2 face each other in the bag. The inner surfaces are obliquely sealed by sealing in an oblique shape from a predetermined position of the side edge seal part 6 of the partition part and / or the side edge seal part 7 of the flat part to a predetermined position of the lower end seal part 8 of the flat part. By forming the portion 15, the multi-chamber packaging bag 101 shown in FIG. 4 is obtained.

Moreover, the multi-chamber packaging bags 103, 106, 107, 108, 110, by appropriately changing the number and width dimensions of the partition part 3 and the shape of the side gusset, and further changing the sealing strength between the members. And 111 can be created.
Although FIGS. 18A to G illustrate a method of creating one multi-chamber packaging bag, a multi-chamber packaging bag may be continuously formed from a long film in the longitudinal direction of FIG. 18C.

DESCRIPTION OF SYMBOLS 1 ... Plane part 1t ... Upper end part of plane part 1s ... Side edge part of plane part 1b ... Lower end part of plane part 2 ... Side part 2t ... Upper end part of side part 2s ... Side edge part 2b ... Side part Lower end part 3 ... partition part 3t ... upper end part of partition part 3s ... side edge part of partition part 3s1 ... bent base part of side edge part of partition part 3b ... lower end part of partition part 4 ... inward convex part 5 ... outer convex part 5b: Folded part of outer convex part 6 ... Side edge seal part of partition part 7 ... Side edge seal part of flat part 8 ... Lower end seal part of flat part 9X ... Small chamber 9Y ... Small chamber 9Z ... Small chamber 10 ... Lower end reinforcement of flat part Seal part 11 ... Upper end seal part of flat part 12 ... Peelable seal part 13 ... Opening assisting means 14 ... Extraction tool 15 ... Skew seal part X ... Contents Y ... Contents Z ... Contents

Claims (8)

A packaging bag having a plurality of small chambers formed of a flexible film,
A pair of opposing flat portions constituting the front and back sides of the bag;
A gusset in which inner convex portions projecting inward of the bag and outer convex portions projecting outward of the bag are alternately formed, and the number of inner convex portions is one more than the number of outer convex portions. A pair of sides having a shape;
It is disposed between the pair of plane portions, and has a side edge portion located on the outer convex portion of the side portion and having at least one partition portion for partitioning the small chambers in the packaging bag. Yes, multi-chamber packaging bags.   2. The multi-chamber packaging bag according to claim 1, wherein a width dimension between the outer convex portions of the pair of side portions is equal to or greater than a width dimension of the planar portion.   One side edge part of the partition part is located on the outer convex part of the side part, and the other side edge part is sandwiched and located between the flat part and the side part, The multi-chamber packaging bag according to claim 1 or 2.   One side edge portion of the partition portion is located at an outer convex portion of the side portion, and the opposite side edges of the other side edge portion and members adjacent thereto are sealed. The multi-chamber packaging bag according to claim 1 or 2.   The multi-chamber packaging bag according to claim 4, wherein a seal between opposing surfaces of the other side edge portion and a member adjacent thereto is a peelable seal.   The multi-chamber packaging bag according to any one of claims 1 to 5, wherein a pouring tool is attached to the multi-chamber packaging bag.   The content filling body with which the multi-chamber packaging bag as described in any one of Claims 1 thru | or 6 is filled with the content. A method for producing the multi-chamber packaging bag according to any one of claims 1 to 6,
A step of preparing a pair of flat part members, a pair of side part members, and a partition part member, both of which are formed of a flexible film;
By folding the side member, an inner convex portion protruding toward the inner side of the bag and an outer convex portion protruding toward the outer side of the bag are alternately formed, and the number of inner convex portions is the outer convex portion. The process of making one more gusset shape than the number of parts,
Sealing the end of the partition member and the outer convex portion of the side member to form an integrated product of the partition member and the side member;
When the integrated body is sandwiched between the pair of members for the flat portion to form an overlapped body, and each member of the overlapped body is not sealed, an edge portion is formed when a multi-chamber packaging bag is formed. A step of sealing an edge portion other than an edge portion serving as a filling port in a portion to be,
The manufacturing method of the multi-chamber packaging bag characterized by including.

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