JP6514059B2 - Pouch container - Google Patents

Description

  The present invention relates to a pouch container, and more particularly to a pouch container provided with a sealing member.

  DESCRIPTION OF RELATED ART The pouch container provided with the sealing member which can close an extraction opening after container opening is known widely (for example, refer patent document 1). Patent Document 1 discloses a pouch container filled with a powder or granular material, which is provided with a top gusset portion in which a discharge hole and a recovery hole such as powder are formed. The powdery material or the like filled in the pouch container is taken out through the extraction hole by directing the take-out port vertically downward.

JP 2005-8163 A

  By the way, in the pouch container provided with the sealing member, when the contents are taken out with the takeout port directed vertically downward, the contents may adhere to the sealing member and the resealability may be impaired. In addition, if the contents adhere to the sealing member, it is not preferable in terms of hygiene. In addition, although the pouch container disclosed by patent document 1 is a design which can suppress that the contents accumulate on a top gazette part, it does not consider about adhesion suppression of the contents with respect to a sealing member.

  A pouch container according to the present invention comprises a first wall sheet and a second wall sheet disposed opposite to the first wall sheet, and a pouch for containing contents in a container internal space surrounded by the respective wall sheets. A container, wherein an outlet for the content is formed between the wall sheet at the top of the container, and the sealing member has a pair of engaging portions provided in the outlet and which are engaged with each other; And an interior sheet joined to the inner surface of the wall surface sheet, wherein the interior sheet includes a first surface sheet disposed opposite to the first wall surface sheet, and a second surface sheet disposed opposite to the second wall surface sheet. , And the lateral end edges of the interior sheet extend to the lateral end edges of the respective wall sheet, and the interior sheet extends along the lateral direction with the outer surface of the first surface sheet and the first surface sheet. Wall sheet, and the second surface The first joint between the lower portion of the interior sheet and the first joint at two first joint portions where the outer surface of the seat and the second wall sheet are joined, and at two places laterally separated Two second joint portions where the inner surfaces of the face sheet and the second face sheet are joined, a cylindrical spout including both ends opened in the vertical direction, and the first joining from the lower end of the interior sheet And a cutting auxiliary line provided across the part, and the cutting auxiliary line is provided on both sides laterally outward from the second joint or the second joint, and the first joint At least a part of which is positioned below the sealing member from the sealing member, and the vertical length from the lower end of the first joint portion to the lower end of the spout portion corresponds to the engaging portion of the sealing member And the length in the vertical direction from the upper end to the lower end of the first joint portion. To.

  In the pouch container according to the present invention, the sealing member is protected by the cylindrical spout portion. That is, according to the pouch container of the present invention, when the content is taken out with the outlet facing vertically downward, the spout portion is pulled upward beyond the engagement portion of the sealing member, and the spout portion Since the contents pass through the inside of the cylinder, the contents can be prevented from adhering to the sealing member. Therefore, the sealing member can be kept hygienic, and the container's sealing performance can be highly suppressed from being impaired due to the adhesion of the contents to the sealing member. Further, the pouch container according to the present invention can be manufactured by a highly productive process using a long sheet of the sheet, since both lateral edges of the inner sheet extend to the lateral edges of each wall sheet. .

It is a front view of the pouch container which is an example of an embodiment. It is AA line sectional drawing in FIG. It is a top enlarged view of the pouch container which is an example of embodiment. It is a front view of the pouch container which is an example of embodiment, and is a figure showing the state where the contents were stored. It is a front view which shows the state which pulled out the pouring-out part of the pouch container which is an example of embodiment above the sealing member. FIG. 6 is a cross-sectional view taken along the line BB in FIG. 5; It is a figure which shows a mode that contents are taken out using the drawn-out outlet part of the pouch container which is an example of embodiment. It is a figure which shows the resealing form of the pouch container which is an example of embodiment. FIG. 9 is a cross-sectional view taken along the line CC in FIG. It is a figure for demonstrating the manufacturing process of the pouch container which is an example of embodiment. It is a figure which shows the modification of the pouch container which is an example of embodiment. It is a figure which shows the other modification of the pouch container which is an example of embodiment.

An example of the embodiment will be described in detail with reference to the drawings.
The drawings referred to in the embodiments are schematically described, and the dimensional proportions and the like of the components drawn in the drawings may differ from the actual product. Specific dimensional ratios and the like should be determined in consideration of the following description. Note that, in the present specification, the description “approximately **” is intended to include the case where it is recognized that not only a complete half but also a substantial half, when approximately half is taken as an example and described.

  Although the embodiment illustrates a standing pouch with a bottom gusset sheet, the configuration of the present invention may be applied to other pouch configurations, such as a flat pouch without self-support. In this specification, when the pouch container is erected on a flat surface, the vertical direction (longitudinal direction in FIG. 1) is referred to as “vertical direction”, and the vertically lower side is “down” and the vertically upper side is “up”. The width direction (left and right direction in FIG. 1) of the pouch container is referred to as “lateral direction”, and the front and back direction of the pouch container is referred to as “front and back direction”. In the drawings, the vertical direction is indicated as the X-axis direction, the horizontal direction as the Y-axis direction, and the front and back direction as the Z-axis direction.

  In the following, the contents to be filled in the pouch container will be described as a powder 100 intended for powdered milk, protein powder, flour, toiletries, toiletry products such as detergents and bath additives, and seasonings such as sugar and salt. However, the contents are not limited to solid substances such as powdery substances 100, and may be, for example, semi-solid substances or liquid substances.

FIG. 1 is a front view of a pouch container 10 which is an example of the embodiment.
As shown in FIG. 1, the pouch container 10 includes a top sheet 11 (first wall sheet) and a back sheet 12 (second wall sheet) disposed to face the top sheet 11, and is surrounded by each wall sheet. It is a soft packaging material container which accommodates the powdery material 100 (see FIG. 4 etc. described later) in the container internal space. Each wall surface sheet is a sheet material for forming the front surface portion and the back surface portion of the container, and in the example shown in FIG. 1, each has a substantially rectangular shape in plan view elongated in the vertical direction (X-axis direction). When the powder 100 is taken out, an outlet 19 (see FIG. 5 or the like to be described later) of the powder is formed between the wall sheet at the top of the pouch container 10.

  The pouch container 10 is provided with a bottom gusset sheet 13 which forms the bottom of the container. The bottom gusset sheet 13 is unfoldably joined to the inner surface of each wall sheet located in the lower part of the container. When the pouch container 10 accommodates the powdery material 100, the bottom gusset sheet 13 spreads to the bottom of the boat and can stand on its own. The bottom gusset sheet 13 is an upward gusset sheet in which the first face sheet disposed opposite to the top sheet 11 and the second face sheet disposed opposite to the back sheet 12 are connected, and the upper ends of the respective sheets are connected. . The pouch container 10 has a flat shape in which the wall sheet substantially contacts each other when the powder 100 is not accommodated, and the bottom gusset sheet 13 is in a folded state.

  The pouch container 10 includes a sealing member 20 provided at the outlet 19 and an inner sheet 30 joined to the inner surface of each wall sheet. In the present embodiment, the sealing member 20 is joined to the inner surface of each wall sheet, and the interior sheet 30 is disposed below the sealing member 20. The interior sheet 30 has a first surface sheet 31 disposed to face the top sheet 11 and a second surface sheet 32 disposed to face the back sheet 12. Although the details will be described later, the interior sheet 30 is a downward gusset sheet, and has a cylindrical outlet port 34.

  It is preferable that both end edges in the lateral direction (Y-axis direction) of the bottom gusset sheet 13 and the interior sheet 30 extend to both end edges in the lateral direction of each wall sheet. That is, each gusset sheet is provided over the entire lateral length of the pouch container 10. In this case, the pouch container 10 can be manufactured by a highly productive process using a long body (see FIG. 10 described later). The inner sheet 30 is provided between the bottom gusset sheet 13 and the sealing member 20 and generally provided closer to the sealing member 20 than the bottom gusset sheet 13.

  The pouch container 10 has the side seal part 14 formed along the up-down direction in the transverse direction both-ends edge of each wall surface sheet mutually arrange | positioned facing each other. The side seal portion 14 is formed with the bottom gusset sheet 13 and the interior sheet 30 inserted between the wall sheet. The side seal portion 14 joins the wall surface sheets to one another and joins each wall surface sheet and two gusset sheets. Further, a bottom seal portion 16 for joining the bottom gusset sheet 13 and each wall surface sheet is formed at the lower part of the pouch container 10. In the bottom gusset sheet 13, notches 17 are formed at both ends in the lateral direction, and the respective wall surface sheets are directly joined via the notches 17. After the powdery material 100 is filled in the container internal space, the container internal space is sealed by forming the upper seal portion 15 at the container upper end edge (see FIG. 4 described later).

  In the present embodiment, notches 18 which are notches for opening are formed in the side seal portions 14 of the wall sheet located in the upper portion of the container. Two notches 18 are formed side by side in the lateral direction at the top of the container than the sealing member 20. By cutting each wall surface sheet along the lateral direction from the notches 18, the takeout port 19 of the powdery material 100 is formed in the takeout port formation scheduled portion 19p shown by a dashed dotted line in FIG.

  Each sheet material constituting the pouch container 10 is usually made of a resin film. The resin film constituting the sheet material is required to have basic performance as a package such as impact resistance, abrasion resistance, and heat resistance. The thickness of the sheet material is, for example, 10 μm to 300 μm, and preferably 20 μm to 200 μm. In addition, since each seal portion is preferably formed by heat sealing, the sheet material is also required to have heat sealing properties. As the sheet material, a multilayer sheet having a base film layer and a sealant layer imparting heat sealing properties is preferable, and when high gas barrier properties are required, a gas barrier layer between the base film layer and the sealant layer Is preferably provided. Lamination of these layers can be performed by a conventional lamination method such as co-extrusion method, dry lamination method using an adhesive, or thermal lamination method in which a heat adhesive layer is sandwiched and thermally bonded.

  In addition, the seal | sticker part formed of heat sealing is thermocompression-bonded by forming the said sheet material in the state which the sealant layer of each sheet material was made to oppose. It is preferable that the first surface sheet 31 and the second surface sheet 32 be joined to each other in the side seal portion 14 from the viewpoint of improving the sealing performance of the pouch container 10 and the like. Further, a second bonding portion 37 described later is formed on the interior sheet 30. Therefore, as the inner sheet 30, it is preferable to use a double-sided heat sealable multilayer sheet having a sealant layer on both sides of the sheet material.

  As a film which comprises a base film layer, polyester (polyethylene terephthalate (PET), polyethylene naphthalate (PEN), polybutylene terephthalate (PBT), a polycarbonate (PC) etc.), polyolefin (polyethylene (PE), a polypropylene ( PP)), polyamide (nylon-6, nylon-66 etc), polyacrylonitrile (PAN), polyimide (PI), polyvinyl chloride (PVC), polyvinylidene chloride (PVDC), polymethyl methacrylate (PMMA), poly One or two or more stretched or unstretched films composed of ether sulfone (PES) and ethylene-vinyl alcohol copolymer (EVOH) can be exemplified. The thickness of the base film layer is, for example, 10 μm to 200 μm, preferably 10 μm to 100 μm.

  As the film constituting the sealant layer, low density polyethylene (LDPE), linear low density polyethylene (LLDPE), ethylene-propylene copolymer (EP), unstretched polypropylene (CPP), biaxially stretched nylon (ON) Ethylene-olefin copolymer, ethylene-acrylic acid copolymer (EAA), ethylene-methacrylic acid copolymer (EMAA), ethylene-vinyl acetate copolymer (EVA), etc. And a stretched or unstretched film. The thickness of the sealant layer is, for example, 20 μm to 200 μm, and preferably 30 μm to 180 μm.

  The gas barrier layer may be a metal thin film such as aluminum, or a resin film such as vinylidene chloride (PVDC) or ethylene-vinyl alcohol copolymer (EVOH), or any synthetic resin film (for example, a base film layer). And films obtained by vapor deposition (or sputtering) of aluminum, inorganic oxides such as aluminum oxide and silica, and the like. The thickness of the gas barrier layer is, for example, 0.1 μm to 20 μm, and preferably 0.2 μm to 10 μm.

  It is preferable that each wall surface sheet be provided with a design print layer (not shown) for displaying a product name or design (pattern), a manufacturer name, a product description such as raw materials / precautions in use, background color, etc. It is. The bottom gusset sheet 13 and the interior sheet 30 may be provided with a printing layer such as a design printing layer. The design print layer can be formed on the inner surface of the base film layer by a known method such as gravure printing. In the drawings, the entire wall sheet is illustrated as transparent for convenience of explanation, but in practice, an opaque design print layer is often formed on each wall sheet, and the print layer is formed. The inside of the container can not be seen from the

  Hereinafter, the sealing member 20 and the inner sheet 30 will be described in detail with further reference to FIGS. 2 to 9. 2 is a cross-sectional view taken along the line AA in FIG. 1, and FIG. 3 is an enlarged view of the upper portion of the pouch container 10. As shown in FIG. 4-9 is a figure which shows the pouch container 10 with which the powder material 100 was filled.

  As shown in FIGS. 1 to 3, the sealing member 20 has a pair of engaging portions (convex portions 23 and concave portions 24) engaged with each other. The sealing member 20 is composed of, for example, two sheets 21 and 22 with an engaging portion. In the example shown in FIG. 2, the engagement portion attached sheet 21 is joined to the inner surface of the top sheet 11, and the engagement portion attached sheet 22 is joined to the inner surface of the back sheet 12. The seat with engagement portion 21 is a seat with a convex portion having a convex portion 23, and the seat with engagement portion 22 is a seat with a concave portion having a concave portion 24. The sealing member 20 closes the outlet 19 and reseals the internal space of the container by fitting the projection 23 to the recess 24.

  The interior sheet 30 is configured by forming two first joint portions 36 and two second joint portions 37, and the cylindrical spout portion 34 opened at both ends in the vertical direction, and the lower end of the interior sheet 30. And a cutting aid line 38 provided across the first joint portion 36. The spout portion 34 is pulled out above the engagement portion of the sealing member 20 and used. The first joint portion 36 is formed by joining the outer surface S2 of the first face sheet 31 and the top sheet 11 and the outer surface S2 of the second face sheet 32 and the back sheet 12 along the lateral direction. In the present embodiment, the entire first bonding portion 36 is located below the sealing member 20. The second joint portion 37 is formed by joining the inner surfaces of the first surface sheet 31 and the second surface sheet 32 at two places separated in the lateral direction. Each second bonding portion 37 is formed from the lower portion of the interior sheet 30 to the first bonding portion 36.

  The interior sheet 30 is a downward gusset sheet in which the lower ends of the first surface sheet 31 and the second surface sheet 32 are connected as described above. In the interior sheet 30 (downward gusset sheet), the first joint portion 36 is formed on the upper portion of the interior sheet 30, and the second joint portion 37 is formed over the lower end of the interior sheet 30 to the first joint portion 36. preferable. A through hole is formed between the second bonding portions 37 in the lower portion of the interior sheet 30. At the upper portion of the interior sheet 30, the inner surfaces of the first surface sheet 31 and the second surface sheet 32 are not joined at portions other than the side seal portion 14, and the respective sheets are not connected. That is, by forming the through holes, the interior sheet 30 is provided with the spouts 34 having the openings 34 a and 34 b at both ends in the vertical direction. The through hole is a hole to be the opening 34 b and is formed, for example, by cutting out the sheet from the lower end of the interior sheet 30 into a desired shape.

  In the present specification, in the state where the outlet part 34 is not drawn upward beyond the sealing member 20 (in the accommodation state), the openings located at the upper end of the outlet part 34 are the openings 34 a and the outlet part 34. An opening located at the lower end is referred to as an opening 34 b. Note that, instead of the through holes, for example, cutting auxiliary lines for forming through holes may be formed along the fold lines 33, and the through holes may be formed when using the spout portion 34.

  In the present embodiment, the spout portion 34 is formed at the lateral center of the interior sheet 30. The interior sheet 30 has the spout portion 34 and the non-pouring portion 35 which is the other portion, and the fold line 33 (the first surface sheet 31 and the A boundary line of the two-sided sheet 32 is formed. A second joint portion 37 is formed between the spout portion 34 and the non-spout portion 35. That is, the interior sheet 30 is divided by the second joint portion 37 into the spout portion 34 and the non-spout portion 35. The non-pouring portion 35 has a substantially triangular shape in a front view, and is formed on both lateral sides of the pouring portion 34. By cutting and leaving the non-pouring portion 35, good transportability of the interior sheet 30 can be obtained in a manufacturing process using a long body described later. The end edge of the non-pouring outlet 35 is joined to each wall sheet by the side seal portion 14 and closed by the second joint portion 37, and the powder 100 is contained in the non-pouring outlet 35. It is configured not to enter.

The spout portion 34 has a vertical length that can be pulled upward beyond the engagement portion of the sealing member 20. Specifically, the vertical length L 34 _c from the lower end of the first joint 36 to the lower end of the spout 34 is the vertical length from the engaging part of the sealing member 20 to the lower end of the first joint 36 L is more than ₂₀ in length. Here, the vertical length L 34 _c is the shortest length along the vertical direction from the lower end of the first joint portion 36 to the lower end of the spout 34. The vertical length L ₂₀ is the shortest length along the vertical direction from the engaging portion (lower end) of the sealing member 20 to the lower end of the first joint portion 36. By setting L 34 _c > L ₂₀ , it becomes possible to pull out the spout portion 34 up to above the engagement portion of the sealing member 20, and the spout portion 34 covers the sealing member 20 and powder on the sealing member 20. The contact of the object 100 is prevented.

The vertical length L 34 _c is preferably longer than the vertical length L ₁₉ from the takeout opening formation scheduled portion 19 p (the takeout opening 19) to the lower end of the first joint portion 36. The up-down direction length L ₁₉ is the shortest length along the up-down direction from the takeout port formation scheduled portion 19 p to the lower end of the first joint portion 36. In this case, the spouting portion 34 can be pulled out to the upper side of the takeout port 19, and the powdery material 100 does not adhere to the wall sheet located above the sealing member 20. The adhesion of the powder 100 can be suppressed.

The vertical length L ₂₀ is preferably longer than half of the vertical length L _{34 c} . In this case, for example, it is easy to fold the spout portion 34 drawn upward to be approximately in half and to store it again in the container internal space on the container lower side than the sealing member 20 (see FIGS. 8 and 9 described later). However, if L ₂₀ is too long, it will be difficult to set L ₁₉ <L _{34 c,} and the capacity of the pouch container 10 may decrease. Therefore, preferably L _{34 c} × 1⁄2 <L ₂₀ <L _{34 c.} × 2/3 (and L ₁₉ <L _34c ).

  The first joint portion 36 is a seal portion that prevents the powder 100 from leaking out between the spout portion 34 and each wall surface sheet. It is preferable that the first joint portion 36 be formed from one side seal portion 14 to the other side seal portion 14. In the present embodiment, the two first bonding portions 36 are formed in a belt shape in a front view at positions opposed to each other in the front and back direction (Z-axis direction), and the respective first bonding portions 36 are connected via the side seal portions 14. There is. That is, the first joint portion 36 is formed in an annular shape over the entire length in the cylinder circumferential direction of the spout portion 34 at the upper portion of the interior sheet 30. The first joint portion 36 is formed slightly lower than the upper end of the interior sheet 30, and the powder 100 passes between the interior sheet 30 and each wall sheet at the portion where the first joint portion 36 is formed. There is no such gap.

  The second joint portion 37 is a seal portion that prevents the powder material 100 from leaking out between the first surface sheet 31 and the second surface sheet 32 constituting the spout portion 34. Each of the second bonding portions 37 is formed in a belt shape in a front view from the lower portion of the interior sheet 30 to the first bonding portion 36. The second bonding portion 37 is preferably formed continuously from the lower end of the inner sheet 30 to the first bonding portion 36. In the present embodiment, each second bonding portion 37 is continuously formed from the lower end of the interior sheet 30 to each intersection of the side seal portion 14 and the first bonding portion 36.

  It is preferable that the distance between the respective upper ends of the second joint portions 37 be wider than the distance between the respective lower ends thereof. For example, each second bonding portion 37 is preferably formed in a substantially C shape in a front view so that the distance between the second bonding portions 37 narrows from the top to the bottom of the interior sheet 30. In this case, the circumferential length of the spout 34 gradually decreases from the top to the bottom, and the opening 34 b is smaller than the opening 34 a. For example, the pouring spout portion 34 has a substantially trapezoidal shape in a front view whose lower portion is smaller than the upper portion, and the non-pouring portion 35 has a substantially triangular shape in a front view whose lower portion is larger than the upper portion. For example, when the spout portion 34 drawn upward is directed vertically downward, the powder 100 flows along the second bonding portion 37, but according to the second bonding portion 37, the powder The fluid 100 can be made to flow smoothly, and the powdery material 100 can be easily taken out. In addition, the operation of pulling out the pouring spout portion 34 is also facilitated.

  The cutting aid lines 38 are provided on both sides of the second joint 37 or the second joint 37 in the lateral direction. That is, the cutting assisting lines 38 may be formed on or outside each second bonding portion 37. Preferably, the cutting auxiliary lines 38 are formed on the respective second bonding portions 37, and in the example shown in FIG. 3, the cutting auxiliary lines 38 are respectively formed in the center in the width direction of the respective second bonding portions 37. The pouring spout portion 34 is separated from the non spouting portion 35 which is the other part of the sheet by cutting the interior sheet 30 at the cutting assisting line 38. Then, the spouted portion 34 which has been separated can be pulled out above the engaging portion of the sealing member 20. The cutting auxiliary line 38 is not particularly limited as long as it can cut the inner sheet 30 along the second bonding portion 37, and in general, a perforation line, a half cut line, or a combination thereof is exemplified. it can. In order to facilitate cutting of the interior sheet 30 along the cutting assistance line 38, it is preferable to form a cut at the tip of the cutting assistance line 38.

  The non-joining portion 34c of the spout portion 34 located below the interior sheet 30 with respect to the first joining portion 36 can be folded back so that the inner surface S1 facing the inside of the cylinder faces the outside of the cylinder (described later) 5 and 6). The non-joining portion 34c is a portion surrounded by the first joining portions 36 and the second joining portions 37, and the inner surfaces of the first surface sheet 31 and the second surface sheet 32 are not joined, and Each sheet is a portion not joined to each wall sheet. That is, the pouring spout portion 34 has the non-joining portion 34 c that can be folded back, and is pulled out above the engaging portion of the sealing member 20 by folding back the non-joining portion 34 c. In the state where the pouring outlet 34 is not separated from the non-pouring outlet 35, the surface facing the inside of the pouring outlet 34 is an inner surface S1, and the surface facing the outside of the pouring outlet 34 is an outer surface S2.

FIG. 4 is a view showing the pouch container 10 filled with the powder 100 before opening.
In the pouch container 10, the wall surface sheets are separated from each other by the filling of the powdery material 100, and the bottom gusset sheet 13 is expanded, and in particular, the container lower portion is expanded. Thus, the autonomy of the pouch container 10 is developed. It is preferable that the powder 100 be filled from the upper end opening of the pouch container 10 into the inner space on the lower side of the inner sheet 30 relative to the inner sheet. After the powder 100 is filled in the pouch container 10, the upper seal portion 15 is formed at the upper end edge of the container. Thus, the container internal space filled with the powder 100 is sealed.

FIG.5 and FIG.6 is a figure which shows the state which pulled out the pouring spout part 34 upwards.
The pouch container 10 is opened by cutting each wall sheet in the lateral direction from the notch 18, and the outlet 19 is formed at the top of the container. When the powder 100 filled in the container internal space is taken out, the spout portion 34 is drawn above the engagement portion of the sealing member 20. Since L ₁₉ <L 34 _{c as} described above, the pouring spout portion 34 can be pulled out higher than the takeout port 19. That is, the tip of the pouring outlet 34 projects from the outlet 19 to the outside of the container. That is, the inner surfaces of the sealing member 20 and the wall surface sheets positioned above the sealing member 20 are covered with the cylindrical spout portion 34.

  The interior sheet 30 is cut along the cutting assistant line 38, for example, by pulling the lower part of the spout portion 34 upward. The pouring spout portion 34 is separated from the non spouting spout portion 35 when the interior sheet 30 is cut at the cutting auxiliary line 38, the inner surface S1 of the non-joining portion 34c is outside the spouting spout portion 34, and the outer surface S2 is the spouting outlet The surface of the non-joined portion 34 c is turned over so as to face the inside of the portion 34 respectively. Then, the outlet 34 is drawn upward such that the opening 34 b is located at the upper end of the outlet 34 and the upper end protrudes from the outlet 19 beyond the sealing member 20.

FIG. 7 shows how the powdery material 100 is taken out using the pouring port 34.
In the pouch container 10, the powdery material 100 is taken out through the inside of the tube of the spout portion 34 drawn upward from the take-out port 19 by directing the take-out port 19 formed in the upper portion of the container vertically downward. Both ends in the vertical direction of the spout portion 34 drawn upward are open even in the folded state described above, and the container internal space and the container exterior are communicated. That is, according to the pouch container 10 having the above-described configuration, the powder 100 does not adhere not only to the sealing member 20 but also to the inner surface of each wall sheet positioned above the sealing member 20. It is taken out through the inside of the cylinder of the outlet 34. By using the cylindrical spout portion 34, for example, even when the inclination angle of the outlet 19 is excessively increased and the powder 100 flows at once, contamination of the sealing member 20 can be prevented. In addition, when the powder 100 adheres to the inner surface of each wall sheet positioned above the sealing member 20, for example, when the outlet 19 is directed vertically upward, the powder falls and the sealing member 20 However, by making it possible to withdraw the spout 34 above the outlet 19, such contamination of the sealing member 20 is also prevented. Therefore, according to the pouch container 10, the sealing member 20 can be kept hygienic, and the sealing performance of the pouch container 10 is impaired due to the adhesion of the powder 100 to the sealing member 20. Can be suppressed.

8 and 9 show the resealed form of the pouch container 10. As shown in FIG.
When the spout portion 34 is pulled out above the removal port 19 and a portion of the powder 100 is removed, the sealing member 20 can be closed to reseal the pouch container 10. At this time, the spout portion 34 may be folded again so that the inner surface S1 of the spout portion 34 facing outward faces inward, and may be returned to the original state, but preferably the spout portion 34 is folded to seal the sealing member It is accommodated in the internal space on the container lower side than 20. Specifically, a portion (hereinafter referred to as a “folded portion”) of the spout portion 34 drawn upward above the first joint portion 36 is the engaging portion of the sealing member 20 and the first joint portion 36. Fold in between to accommodate. In the present embodiment, since L _{34 c} × 1⁄2 <L _20, it is possible to easily accommodate the engaging portion and the first joint portion 36 by bending the folded portion in half. Accordingly, in resealing the pouch container 10, since it is not necessary to return the folded portion back to the original state, it is difficult for the powder 100 to adhere to the fingers, and the resealing operation becomes easy.

An example of a method of manufacturing the pouch container 10 will be described with reference to FIG.
FIG. 10 shows a process of laminating long sheets of each sheet material in the manufacturing process of the pouch container 10 to form each seal portion. Hereinafter, the longitudinal direction of the elongated body is referred to as “MD direction”, and the width direction is referred to as “TD direction”.

  As shown in FIG. 10, first, the front sheet 11, the back sheet 12, the bottom gusset sheet 13, the engagement sheets 21 and 22 constituting the sealing member 20, and the inner sheet 30 (hereinafter referred to as a long sheet) The bodies 11z, 12z, 13z, 21z, 22z and 30z are prepared and stacked on one another. Through holes 17 z to be notches 17 are formed in the elongated body 13 z, and second joint portions 37 and cutting auxiliary lines 38 are formed at substantially equal intervals in the MD direction in the elongated body 30 z. In the stacking process of the respective long bodies, the long bodies 11z and the long bodies 12z are overlapped, and the long bodies 13z are placed under the long bodies 11z and the long bodies 12z, and the long bodies 21z and 22z are placed above Then, the elongated body 30z is inserted between the elongated bodies 21z and 22z and the elongated body 13z. The elongated members 21z and 22z are stacked in a state where the convex portion 23 is fitted in the concave portion 24.

  The side seal portion 14, the bottom seal portion 16, and the first joint portion 36 are formed in the heat sealing step in the respective long bodies stacked one on another, and the long bodies 13z and 30z are the long bodies 11z and 12z. Bonded to the inner surface. When forming the first joint portion 36, the shielding plate is positioned between the interior sheets 30, and heat sealing is performed so that the inner surfaces of the interior sheets 30 are not joined in the front and back direction Z. Next, for example, using a die cut roll or the like, the above-mentioned elongated members are cut along the TD direction at the MD central portion of the side seal portion 14 and divided into individual container sizes. At this time, a notch 18 is formed in the side seal portion 14. Thus, the pouch container 10 shown in FIG. 1 is obtained. After the powder 100 is accommodated in the container from the upper end opening of the pouch container 10, the upper seal portion 15 is formed to obtain the pouch container 10 in which the powder 100 is accommodated in the container shown in FIG. Be Alternatively, the powdery material 100 may be accommodated in the above-described elongated body, and the upper seal portion 15 may be formed and then divided into individual container sizes.

  As described above, the pouch container 10 can be manufactured by a simple and highly productive process using a long sheet of each sheet material.

FIG. 11 is a view showing a pouch container 10 x which is a modification of the pouch container 10.
The pouch container 10x has the first joint portion 36x in which the outer surface S2 of the inner sheet 30x is joined to the inner surface of the top sheet 11 and the inner surface of the back sheet 12 similarly to the pouch container 10, but the sealing member 20 is the inner sheet It differs from the pouch container 10 in that it is joined to 30x. The sealing member 20 is joined to the inner surface S1 at the upper portion of the interior sheet 30x. In the example shown in FIG. 11, the seat 21 with engaging portion having the convex portion 23 is on the inner surface S 1 of the first surface sheet 31, and the seat 22 with engaging portion having the recess 24 is on the inner surface S 1 of the second surface sheet 32. It is joined.

In the pouch container 10x, the upper end of the first bonding portion 36x is located above the sealing member 20, and the sealing member 20 is provided in the cylinder of the spout 34x. The lower end of the first bonding portion 36 x is located below the sealing member 20 as in the pouch container 10. Also in this case, the vertical length L _{34 cx} from the lower end of the first joint 36 x to the lower end of the _{spout 34 x} is the vertical length from the engaging part of the sealing member 20 to the lower end of the first joint 36 The length exceeds L ₂₀ , and the non-joined portion 34cx can be folded back so that the spout portion 34x can be pulled out above the engagement portion of the sealing member 20. The vertical length L _{34 cx} is preferably longer than the vertical length L ₁₉ from the not-shown takeout opening formation portion 19 p (the takeout opening 19) to the lower end of the first joint portion 36.

In the pouch container 10x, since the sealing member 20 is joined to the inner sheet 30x, for example, the vertical length of the inner sheet 30x can be made shorter than in the case of the pouch container 10, and the filling amount of the contents is large. can do. Also in this case, by making the vertical length L ₂₀ longer than half the vertical length L _{34 cx} , the container interior space below the sealing member 20 in a state where the spout portion _{34 x} is folded approximately in half. Can be housed in

FIG. 12 is a view showing a pouch container 10y which is a modification of the pouch container 10. As shown in FIG.
The pouch container 10y differs from the pouch container 10 in that the pouch container 10y has a knob 39 joined to the inner surface S1 of the spout 34. The knob 39 is used, for example, when it is picked up with a fingertip and the pouring port 34 is pulled upward. The knob 39 is preferably provided at the lower part of the spout 34. In the example shown in FIG. 12, the knob 39 is joined to the inner surface S1 of the first face sheet 31, but may be joined to the inner face S1 of the second face sheet 32. It may be provided on both of the face sheets 32. The shape, size, and the like of the knob 39 are not particularly limited as long as it is easy to pick with, for example, a fingertip. Since the inner surface S1 is folded back when the outlet 34 is pulled upward as described above, the knob 39 does not touch the powder 100 and does not inhibit the removal of the powder 100. . The method of joining the knobs 39 is also not particularly limited, and the knobs 39 may be joined to the inner surface S1 by heat sealing, or may be joined using an adhesive (including an adhesive). The knob 39 may be made of a tack sheet.

  Although the form which used the downward gusset sheet | seat as an interior sheet was illustrated in the said embodiment, the interior sheet may overlap and comprise the 1st surface sheet and the 2nd surface sheet which were mutually separated, for example.

  DESCRIPTION OF SYMBOLS 10 pouch container, 11 surface sheet (1st wall surface sheet), 12 back surface sheet (2nd wall surface sheet), 13 bottom gusset sheet, 14 side seal part, 15 upper seal part, 16 bottom seal part, 17 notch, 18 notch , 19 outlet port, 19p outlet port formation portion, 20 sealing member, 21 and 22 seat with engagement portion, 23 convex portion, 24 recessed portion, 30 interior sheet, 31 first surface sheet, 32 second surface sheet, 33 Line of crease, 34 spouts, 34a, 34b openings, 34c non-joining parts, 35 non-pouring outlets, 36 first joint, 37 second joint, 38 cutting auxiliary line, 39 knobs, S1 inner surface, S2 Outer surface, 100 powder

Claims (5)

The first wall sheet,
A second wall sheet disposed opposite to the first wall sheet;
A pouch container for containing contents in a container internal space surrounded by the respective wall surface sheets,
An outlet for the contents is formed between the wall sheet at the top of the container,
A sealing member having a pair of engaging portions which are provided in the outlet and which engage with each other;
An interior sheet joined to the inner surface of each of the wall sheet;
Equipped with
The interior sheet has a first surface sheet disposed opposite to the first wall surface sheet, and a second surface sheet disposed opposite to the second wall surface sheet.
Both lateral end edges of the interior sheet extend to lateral end edges of the respective wall sheet,
The interior sheet is
Two first joint portions in which the outer surface of the first surface sheet and the first wall surface sheet, and the outer surface of the second surface sheet and the second wall surface sheet are joined along the lateral direction, and the lateral direction And two second joint portions where the inner surfaces of the first surface sheet and the second surface sheet are joined from the lower portion of the interior sheet to the first joint portion at two distant places. A cylindrical spout from which both ends in the vertical direction are opened,
And a cutting assistant line provided from the lower end of the interior sheet to the first joint portion,
The cutting auxiliary lines are provided on both sides laterally outward from the second bonding portions or the second bonding portions,
At least a portion of each of the first joints is located below the sealing member below the container,
The vertical length from the lower end of the first joint portion to the lower end of the spout portion exceeds the vertical length from the engaging portion of the sealing member to the lower end of the first joint portion. There is a pouch container. The interior sheet is a downward gusset sheet in which lower ends of the first surface sheet and the second surface sheet are connected,
Each of the first joints is formed on the upper portion of the interior sheet.
Each of the second bonding portions is formed from the lower end of the interior sheet to the first bonding portion.
The pouch container according to claim 1, wherein a through hole is formed between the second joint portions in the lower portion of the inner sheet.   The pouch container according to claim 1 or 2, wherein the distance between the respective upper ends of the second joints is wider than the distance between the respective lower ends.   The vertical length of the sealing member from the engaging portion to the lower end of the first joint is a half of the vertical length of the lower end of the first joint to the lower end of the spout. The pouch container according to any one of claims 1 to 3, which is long.   The pouch container according to any one of claims 1 to 4, further comprising a knob on the inner surface of at least one of the first surface sheet and the second surface sheet in the spout portion.

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