JP4451113B2 - Pouch container with spout - Google Patents

Description

  The present invention relates to a pouch container with a spout.

Conventionally, as a container for filling beverages, jelly-like foods, and the like, a pouch container with a spout in which a spout for filling filling is attached to the upper part of a bag body made of a flexible film is known. Such a pouch container with a spout is often used for the purpose of cooling and eating after filling with a beverage or the like. However, when the filled pouch container is cooled in this manner, the outer surface of the bag is condensed when it is taken out from the refrigerator compartment. In particular, when a beverage is filled with ice or iced confectionery such as ice cream or ice cream is used as a filling, when it is taken out of the freezer, a large amount of condensation is rapidly formed on the bag. .
In view of such a point, the present applicant has proposed a pouch container with a spout in which a foamed resin layer is laminated (Japanese Patent Laid-Open No. 2001-130586). Such a pouch container is very preferable because dew condensation can be prevented by the foamed resin layer, but a pouch container with a spout that can prevent dew condensation by different means is desired.

JP 2001-130586 A

  Then, this invention makes it a subject to provide the pouch with a spout improved so that dew condensation can be prevented.

In the present invention, as the means, the bag body has at least a front and back piece made of a multilayer film, and a spout to-be-fused portion is sandwiched between a part of the upper end portion of the front and back piece. A spouted pouch container in which a spout is attached to a part of the upper end portion of the front and back surface pieces by heat-sealing the peripheral end portion , wherein the multilayer film has two films, and the spout By adhering the peripheral edge portions of the two films except for the left and right portions of the upper end portions of the two films corresponding to both sides of the position where the fused portions of the two films are heat-sealed, void layer is provided in between the inner surface of the film, it is formed and the void layer and the vent port communicating with the outside between the two films in the lateral portion of the upper portion, respectively, through the vent, the gap Outside air leaks into the layer To provide a spouted pouch container is possible.

In the pouch container with a spout, since a void layer is provided between the inner film and the outer film of the multilayer film constituting the front and back pieces of the bag body, an air layer is formed between the multilayer films by the void layer. The Therefore, even if the pouch container is taken out after being stored at a low temperature such as refrigeration or freezing, dew condensation hardly occurs on the outer surface of the bag body. Further, the bag main body is formed with a vent hole that allows the gap layer to communicate with the outside, and the outside air can flow into and out of the gap layer through the vent hole. Further, the vents are formed in the left and right portions of the upper end portions of the two films corresponding to both sides of the position where the spout to-be-fused portion is heat-sealed, so that the pouch container with the spout is transported. Dust is difficult to adhere to the vents.
In addition, since an air layer is formed between the inner film and the outer film, for example, when the filling is frozen and solidified, the shape of the solidified filling hardly appears on the outer surface of the bag body. Therefore, it is possible to provide a pouch container having a smooth appearance even when filled with a solidified filler.

  According to the pouch container with a spout of the present invention, even after taking out the filling and storing it at a low temperature, it is difficult for condensation to form on the outer surface of the bag body. Things can be poured out.

  In a preferred embodiment of the pouch container with a spout of the present invention, a spout is attached to a bag body formed in a bag shape by adhering at least the peripheral ends of the front and back pieces, and the front and back pieces are peeled in the middle. It consists of a laminated film provided with a layer, and a void layer is formed in a range where a release layer is provided by laminating. This release layer is preferably provided in a range excluding the heat-sealed portion of the front and back pieces. Further, when the pouch container is a self-supporting type that folds the front and back pieces to form the bottom face, the front and back pieces are provided. It is a preferable aspect that it is provided in the range except this bottom surface formation part. Moreover, the preferable one aspect | mode of the pouch container with a spout of this invention attaches a spout to the bag main body formed in the bag shape by adhere | attaching the peripheral edge part of a front and back piece at least, and a front and back piece is a 1st film. The second film is composed of two films, and a gap layer is provided between the two films by heat-sealing predetermined portions of the outer surface of the first film and the inner surface of the second film.

  A preferable aspect included in the pouch container with a spout is that the bag body is formed with a vent hole that allows the gap layer and the outside to communicate with each other. Air enters the layer and an air layer with a larger volume is formed, which is excellent in preventing condensation and has a smooth appearance. Furthermore, in order to form a vent hole that communicates the void layer and the outside, a preferred embodiment is one in which a part of the release layer is provided extending to the heat-sealed portion of the front and back surface pieces. This vent is preferably provided at the upper end or / and the lower end of the bag body, and in particular, the vent is preferably open at the upper end.

Hereinafter, embodiments of the present invention will be specifically described with reference to the drawings. For convenience, as a term indicating a direction, “inside” refers to the direction of the storage portion in which the filling is filled, and “outside” refers to a direction away from the storage portion.
(First embodiment)
1 to 3, reference numeral 1 denotes front and back pieces 5 and 5 each having a void layer 2 provided in an intermediate layer and a vent 3 for communicating the void layer 2 and the outside; A pouch container with a spout is shown in which a spout 8 is attached to a bag body 7 composed of both side surface pieces 6 and 6 constituting the part. Such a pouch container 1 with a spout is a self-standing pouch in which, after filling, the bottom portions 1a for mounting are formed by folding back the lower portions of the front and back surface pieces 5 and 5.

The bag body 7 is composed of a total of four flexible film pieces, that is, a front piece 5, a back piece 5, and both side pieces 6, 6, and is formed into a bag shape by bonding the inner surfaces of the end portions of the pieces 5, 6 together. Is formed. Specifically, the front and back pieces 5 and 5 are formed in a shape in which both lower corners of a rectangular laminated film are cut in an inclined manner in order to improve the self-supporting stability of the bottom face 1a formed after filling. On the other hand, the side surface pieces 6 and 6 are shaped along the side end portions 5a and the inclined side end portions 5b of the front and back surface pieces 5 and 5, and are folded inward in the vertical direction at the center portion. The inner surface of the side end portion 5a and the inclined side end portion 5b of the front and back surface piece 5 and the inner surface of the side end portion 6a and the inclined side end portion 6b of the both side surface pieces 6 are overlapped to have a predetermined width (for example, about 3 to 10 mm). The heat-sealed portion 4 is formed by heat-sealing, and the inner surfaces of the lower end portions 5c of the front and back surface pieces 5 are overlapped and heat-sealed by a predetermined width, so that an upper-opening bag body 7 is formed. . Then, in the pouch container 1 with a spout, the conduit 81 of the spout 8 is inserted into the storage portion 71 of the bag body 7 from the upper opening, and the spout is placed between the upper end portions 5d of the front and back pieces 5 as shown in FIG. By sandwiching the 8 fusion-bonded portions 82, the inner surfaces of the upper end portions 5d of the front and back surface pieces 5, and the inner surface of the upper end portion 5d and the peripheral surface of the fusion-bonded portion 82 are heat-sealed by a predetermined width. Is formed.
The spout 8 includes a spout to which a removable cap is attached and a fusion-bonded portion 82 that is an attachment portion to the bag body 7, and the material thereof is made of various synthetic resins, metals such as aluminum, and the like. However, since it can be easily attached to the bag body 7, it is preferable that at least the peripheral surface of the bonded portion 82 can be heat-sealed with the inner surface of the front and back piece 5, for example, synthesis of polyethylene, polypropylene, or the like. A material of the same kind as the sealant layer 51 of the front and back piece 5 is preferable because it can be formed by a resin molded product and can be heat-sealed well.

Each of the front and back surface pieces 5 and the both side surface pieces 6 is formed of a multilayer (laminated) film obtained by laminating a plurality of films, and the front and back surface pieces 5 are provided with a gap layer 2 in the middle of the multilayer film. ing. Specifically, as shown in FIG. 3, the front and back surface pieces 5 are, for example, in order from the inside toward the outside, for example, a sealant layer 51 for heat-sealing, the strength of the bag (bending resistance, pinhole resistance). Etc.) is formed of a laminated film in which a base material layer 52 for holding, a barrier layer 53 for imparting gas barrier properties and light shielding properties, and an outer surface layer 54 for imparting surface friction, heat resistance and the like are laminated, A release layer 55 for forming the void layer 2 is provided between the barrier layer 53 and the outer surface layer 54.
The sealant layer 51 is not particularly limited as long as it is a heat-sealable material. For example, polyethylene such as high-density polyethylene and linear low-density polyethylene, polypropylene, ethylene-vinyl acetate copolymer, and the like can be used. . Of these, it is preferable to use a linear low-density polyethylene film having excellent heat-fusibility. The thickness of the sealant layer 51 is, for example, about 30 to 150 μm. The base material layer 52 is not particularly limited as long as it is relatively excellent in strength, such as polyamide film such as nylon, polyester film such as polyethylene terephthalate, polypropylene film such as polypropylene and propylene-ethylene copolymer, and the like. A synthetic resin film, paper, synthetic paper, two or more kinds of laminates, and the like can be used. Of these, it is preferable to use polyamide-based films such as 6 nylon and 6, 6 nylon, which are excellent in bending resistance. The thickness of the base material layer 52 is, for example, about 10 to 70 μm. The barrier layer 53 is not particularly limited as long as it has a gas barrier property, and a synthetic resin film having a gas barrier property such as a metal foil such as aluminum, polyvinylidene chloride, and an ethylene-vinyl alcohol copolymer. A laminate or the like can be used. Among these, it is preferable to use a metal foil such as aluminum because it also has a light shielding property. The thickness of the barrier layer 53 is, for example, about 6 to 30 μm in the case of an aluminum foil. In some cases, the gas barrier property may not be necessary depending on the filler, and therefore the barrier layer 53 may be omitted depending on the case. For the outer surface layer 54, for example, a polyester film such as polyethylene terephthalate, a polyamide film such as polypropylene or nylon, two or more laminates, and the like can be used. In the case of a synthetic resin film, a stretched film is used. It is preferable. Of these, it is preferable to use a polyester-based film such as polyethylene terephthalate which is excellent in heat resistance during heat fusion, dimensional stability, and the like. The thickness of the outer surface layer 54 is, for example, about 10 to 70 μm.
Although not particularly illustrated, design printing on which an indication of a product name, a pattern, or the like is printed is performed on the inner surface or the outer surface of the outer surface layer 54. When the design printing is performed on the inner surface, the outer surface layer 54 is provided. Transparent material is used.

The release layer 55 is provided, for example, by applying a release agent such as silicone or polyamide nitrified cotton-based resin coating agent to the outer surface of the barrier layer 53 by a gravure printing method or the like. In the range where the release layer 55 is provided, the barrier layer 53 and the outer surface layer 54 can be non-adhered or easily peeled even when laminated, and the void layer 2 is formed between the layers 53 and 54. The range in which the release layer 55 is provided is not particularly limited, but it is preferable that the release layer 55 be provided in as wide a range as possible from the viewpoint of increasing the void layer 2 to increase the dew condensation prevention effect. However, if the release layer 55 is provided in a wide range, the outer surface layer 54 (outer film) may be inadvertently peeled off. If the release layer 55 is provided along the edge of the barrier layer 53, the edge of the outer surface layer 54 may be removed. For example, the peeling layer 55 is preferably provided in a range excluding the heat fusion part 4 of the bag body 7, and further, when the bottom surface 1 a configured after filling is inflated by the gap layer 2. Since there is a possibility of reducing the self-supporting stability, it is preferable that the release layer 55 is provided in a range excluding the bottom surface forming portion of the front and back surface pieces 5 as illustrated.
Further, a part of the release layer 55 is provided so as to extend to the edge of the barrier layer 53, and the air vent 3 that communicates the gap layer 2 and the outside is formed at this edge. The peeling layer extending portion 55a is preferably extended to the upper end portion 5d side of the front and back surface piece 5 as shown in the drawing from the point that dust adhesion can be reliably prevented.
Each of the above layers is preferably dry lamination using an adhesive, but can also be laminated by a known laminating process such as thermal lamination in which a heat-sensitive adhesive is sandwiched. As the barrier layer 53, a metal foil such as aluminum or a vapor deposition layer such as silicon oxide can be laminated. Specifically, a linear low density polyethylene film 51 is laminated on the inner surface of a nylon film 52 on which a barrier layer 53 made of polyethylene terephthalate film deposited with silicon oxide is laminated by dry lamination, extrusion lamination, etc. A multilayer film constituting the front and back piece 5 is formed by applying a release agent 55 to a predetermined range of the outer surface of the polyethylene terephthalate film 53 and laminating the design-printed polyethylene terephthalate film 54 by dry lamination or the like. .
The side piece 6 has the same configuration as the front and back pieces 5 except that no release layer is provided. For example, as shown in FIG. It consists of a laminated film in which each layer of linear low density polyethylene) / base layer 62 (nylon) / barrier layer 63 (polyethylene terephthalate film on which silicon oxide is deposited) / outer surface layer 64 (polyethylene terephthalate) is laminated. In addition, you may provide the peeling layer 55 in the side piece 6 similarly.

The pouch container 1 with a spout can be manufactured by the following method, for example.
As shown in FIG. 4A, the side film original sheet 26 is folded between the front film original sheet 25 in which the surface pieces 5 are continuously connected in the vertical direction and the rear film original sheet 25. While sandwiching, in order to form the heat-sealing part 4 (shown by hatching) shown in FIG. 4 (b), the heat plate is applied from the upper and lower sides of the front and back film raw sheet 25, 25 using the heat sealing device, The inner surfaces of the sealant layers 51 and 61 of the original fabric sheets 25 and 26 are heat-sealed. Thereby, the bag continuous body 27 which the bag main body 7 connected continuously as shown in FIG.4 (b) is obtained. Then, after cutting this bag continuous body 27 and producing each bag main body 7, the spout 8 may be attached. However, the bag continuous body 27 is wound into a roll shape, and then this bag continuous body roll 30 is Attached to the spout attachment device installed in the filling line, while feeding the bag continuum 27 from the bag continuum roll 30, it is cut along the planned cutting line X (two-dot chain line shown in FIG. 5B), and the upper opening type The top and bottom pieces 5 and 5 are sucked by vacuum to open the upper end 5d, the spout 8 is inserted from here, and the upper end 5d is heated while sandwiching the fused portion 82. After obtaining the pouch container 1 with a spout by fusing, the filling material is filled through the spout 8 of the spout 8, and the cap is screwed into the spout to produce a filled pouch container with a spout. Can do.

  According to the pouch container 1 with a spout, since the void layer 2 is provided on the front and back surface pieces 5, an air layer in which air accumulates is formed between the inner film (barrier layer 53) and the outer film (outer surface layer 54). It is formed. Therefore, even if the filled pouch container 1 is taken out in a cooled state, condensation is unlikely to occur on the outer surface of the outer film. Moreover, the cooling effect of the filling can also be expected by the air layer. In addition, when the filling is iced using a conventional pouch container, the outer shape of the solidified filling is reflected on the outer surface of the bag body, and the pouch container has a rugged appearance. By providing the gap layer 2 in the intermediate layer of the front and back pieces 5 as described above, the shape of the solidified filling is hardly reflected on the outer film, and thus the pouch container 1 has a natural smooth appearance.

Further, since the air gap 3 is provided in the air gap layer 2 so as to communicate with the outside, air can sufficiently enter the air gap layer 2 through the air vent 3 when the filling is filled. The prevention effect and the cold insulation effect can be enhanced, and a good appearance is exhibited even when the solidified filler is filled.
Further, since the vent 3 is opened at the upper end portion 5d, it is possible to prevent dust from adhering during manufacture and distribution. That is, when an opening is provided in the bag, dust or the like easily adheres to the edge of the bag. By providing the vent 3 in the upper end 5d as described above, in the state of the continuous bag roll 30 at the time of manufacture. Since the vent 3 is not opened, there is no possibility that dust or the like will adhere when the bag continuous body roll 30 is stored and transported. In addition, after filling the pouch container 1 with a spout, the upper end portion 5d to which the spout 8 is attached does not come into contact with the transport conveyor, the packing box, or the like, so that dust or the like hardly adheres to the vent hole 3. There is. The vent 3 is preferably provided on both sides of the spout 8 except for the position where the spout 8 is heat-sealed.

  Furthermore, since the means for forming the void layer 2 is to provide the release layer 55 in the middle of the multilayer film, the desired void layer can be obtained simply by adhering the film coated with the release layer 55 by a known laminating process. 2 can be formed. That is, when the laminated film constituting the pouch container 1 is manufactured, the pouch container can be manufactured in the same procedure as the conventional one only by adding the step of applying the release layer 55 to the desired range. The pouch container 1 of the present invention can be manufactured using this manufacturing line.

Next, various modifications of the first embodiment will be described.
As described above, the range where the release layer 55 (gap layer 2) is provided is most preferably provided in a range excluding the heat fusion portion 4 and the bottom surface forming portion, but the present invention is not limited thereto. For example, as shown to Fig.5 (a), it may be provided in the substantially whole range except the peripheral edge part (heat-fusion part 4) of the front-and-back surface piece 5, and the same figure (b), (c). As shown, it may be divided into a plurality of parts, or may be provided in multiple strips as shown in FIG. Further, the vent 3 is most preferably provided at the upper end 5d, but for example, it may be provided at the lower end 5c as shown in FIG. 5 (a), as shown in FIG. You may be provided in the side edge part 5a. Further, as shown in FIG. 5E, a plurality of holes may be formed in a part of the outer surface layer 54 and this may be used as the vent 3. In addition, although it is preferable that the ventilation hole 3 connected to the space | gap layer 2 is provided, as shown to the figure (c), you may not have a ventilation hole, for example.

  Furthermore, the release layer 55 (gap layer 2) is not limited to the case where it is provided between the barrier layer 53 and the outer surface layer 54. For example, the sealant layer 51 and the base material layer 52 are provided between the base material layer 52 and the barrier layer 53. However, it is preferable that the release layer 55 is provided outside the barrier layer 53 because the outside air flows into and out of the gap layer 2 through the vent 3. However, when the vent 3 is not provided, the release layer 55 may be provided between any layers. This is because the air gap layer 2 does not communicate with the outside, so that the gas barrier property is not impaired, and even if a pinhole or the like is generated in the inner layer from the peeling layer 55, there is no possibility that the filler leaks.

(Second Embodiment)
In the pouch container with a spout of the second embodiment, as a means for providing the gap layer 2, two films are laminated to form a multilayer film without using a laminated film provided with a release layer 55, and predetermined portions of both films are bonded. The difference is that the gap layer 2 is provided. Hereinafter, parts different from those of the first embodiment will be mainly described, and the same configuration may be referred to using terms and figure numbers, and the description thereof may be omitted.
6 and 7, the front and back surface pieces 5 constituting the pouch container 1 with a spout are made of a multilayer film in which an inner first film 91 and an outer second film 92 are overlaid. The gap layer 2 is provided between the second film 92 and the second film 92. Specifically, the first film 91 is a laminated film in which a sealant layer 51, a base material layer 52, a barrier layer 53, and a sealant layer 56 are laminated in order from the inside, and the second film 92 is in order from the inside. The sealant layer 57 and the outer surface layer 54 are laminated films. The front and back surface pieces 5 are formed by superposing the outer surface of the sealant layer 56 of the first film 91 and the inner surface of the sealant layer 57 of the second film 92 and heat-sealing the entire peripheral ends of both films 91 and 92 by a predetermined width. Thus, the gap layer 2 is provided between the layers 56 and 57.

The spout pouch container can be manufactured, for example, by the following method.
As shown in FIG. 8 (a), the second film original fabric sheet 29 is arranged facing each other on the outer surface of the pair of first film original fabric sheets 28 to which the first film 91 is continuously connected. The side film original sheet 26 is folded and sandwiched between one film original sheet 28. And when a heat plate is applied from the upper and lower sides of the second film original fabric sheets 29, 29 using a heat sealing device to form the heat fusion part 4 (shown by hatching) shown in FIG. The inner surfaces of the sealant layers 56 and 57 of the first film original fabric sheet 28 and the second film original fabric sheet 29 and the inner surfaces of the sealant layers 51 and 61 of the first film original fabric sheet 28 and the side film original fabric sheet 26 are heat-sealed. Is done. Thereby, as shown in FIG.8 (b), the bag continuous body 27 which ensured the space | gap layer 2 between the 1st and 2nd film original fabric sheets is obtained. This was wound up in a roll shape, and then cut along the planned cutting line X to obtain an upper opening-type bag body 7. Further, the upper end portion 5 d was opened, the spout 8 was inserted, and the fused portion 82 was sandwiched. The pouch container 1 with a spout is manufactured by heat-sealing the upper end portion 5d in the state.

  Similarly to the first embodiment, the pouch 1 with a spout of the present embodiment is provided with the gap layer 2 and thus has a dew formation prevention, a cold retaining property, and an appearance that is hardly affected by the solidified filler. However, since the pouch container 1 with a spout according to the second embodiment is provided with the sealant layers 56 and 57 on the two films 91 and 92, respectively, the thickness of the upper end portion 5d of the front and back piece 5 becomes relatively thick. When the spout is inserted, the space between the first films 91 and 91 must be opened. Considering these points, the spout-equipped pouch container 1 of the first embodiment, which is excellent in spout mounting accuracy and mounting workability, is preferable.

Next, various modifications of the second embodiment will be described.
The range where the release layer 55 (gap layer 2) is provided is not limited to the case where it is provided in the range excluding the heat fusion part 4 as described above, and can be provided as in each example shown in the first embodiment. . In addition, the bag body 7 is not provided with the vent 3, but the vent 3 that communicates with the gap layer 2 is provided by not bonding a part of the peripheral edge of the first film 91 and the second film 92. May be. Alternatively, a hole may be formed in the second film 92 and used as the vent 3. When the vent 3 is provided, the position thereof is not limited, but the upper end 5d is most preferable for the same reason as in the first embodiment.

Further, the gap layer 2 is not limited to the case where the gap layer 2 is provided between the barrier layer 53 of the first film 91 and the outer surface layer 54 of the second film 92. For example, the first film 91 is a single layer of heat-fusible film. The second film 92 is made up of a sealant layer 51 / base material layer 52 / barrier layer 53 / outer surface layer 54, and the two films 91, 92 are overlapped and heat-sealed at a predetermined portion of the peripheral edge portion. The layer 2 may be provided, and the first film 91 is composed of the sealant layer 51 / base material layer 52 / sealant layer 56, and the second film 92 is composed of the sealant layer 57 / barrier layer 53 / outer surface layer 54. For example, the structure of the first film 91 and the second film 92 can be appropriately changed to provide the gap layer 2 between the films 91 and 92.
In the case where the vent hole 3 is provided, it is preferable that the gap layer 2 is provided outside the barrier layer 53 for the same reason as in the first embodiment.

(Other embodiments)
In the various embodiments described above, the bag body is a self-supporting type with a double-sided gusset made of four film pieces, but the bag body is not limited to this, for example, as shown in FIG. Thus, as shown in the same figure (b), as shown in the same figure (b), the front and back surface piece 5 and the one side piece 6 are 3 in total. Formed in various forms such as a self-standing type with a single-sided gusset made of a single piece of film, and a self-standing type made up of a total of three pieces of film, a front and back piece 5 and a bottom piece 10 as shown in FIG. be able to.
In addition, although not particularly illustrated, in addition to the front and back surface pieces 5 such as the side surface piece 6 and the bottom surface piece 10, if the peeling layer 55 (gap layer 2) and the vent hole 3 similar to the front and back surface pieces 5 are provided, It is effective.

Further, as described above, the multilayer film constituting the bag body 7 does not necessarily include the base material layer 52, the barrier layer 53, and the outer surface layer 54. For example, the base material layer 52 or When the outer surface layer 54 is a material having a gas barrier property, the barrier layer 53 may not be provided separately. Similarly, if the outer surface layer 54 or the barrier layer 53 is a strong material, the base material layer 52 may not be provided separately. In addition, for example, when filling a filler that does not require a gas barrier property (for example, frozen food), the barrier layer may not be provided, and each layer configuration of the multilayer film is appropriately changed depending on the material and the filler. be able to. It is also possible to further laminate layers having functions different from those of the above layers, such as a nonwoven fabric layer and a foamed resin layer.
The spout 8 is not particularly limited as long as it has the spout and the fused portion 82. For example, the spout 8 does not have the conduit 81, or a rod-like body having a cross-sectional shape in place of the conduit 81 is provided. Various known ones such as those can be used.

  In addition, the filling with which the pouch container 1 with a spout of the present invention is filled is not limited to foods such as beverages, ice cream and other frozen desserts, and can be filled with pharmaceuticals, etc. It is also possible to do.

The perspective view which shows the pouch container with a spout of 1st Embodiment. The portion where the void layer is provided is indicated by light ink painting (the same applies to FIGS. 2, 4, 5, 6 and 8). The exploded perspective view. The spout conduit is partially omitted. (A) is the sectional view on the AA line of FIG. 1, (b) is the sectional view on the BB line of FIG. The film thickness is shown enlarged. (A) is a reference perspective view which shows the heat sealing process in the bag main body manufacturing process of 1st Embodiment, (b) is a partial both schematic plan view which shows a bag continuous body. Note that the heat-sealed portion is indicated by shading. (A)-(d) is a reference top view which shows other embodiment of a space | gap layer, (e) is a partially abbreviated sectional view which shows other embodiment of the formation position of a vent hole. The perspective view which shows the pouch container with a spout of 2nd Embodiment. The CC sectional view taken on the line of FIG. The film thickness is shown enlarged. (A) is a reference perspective view which shows the heat sealing process in the bag main body manufacturing process of 2nd Embodiment, (b) is a partial both schematic plan view which shows a bag continuous body. Note that the heat-sealed portion is indicated by shading. (A)-(c) is an exploded perspective view which shows other embodiment of the pouch container with a spout.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Pouch container with a spout, 1a ... Bottom surface, 2 ... Gap layer, 3 ... Vent, 4 ... Thermal fusion part, 5 ... Surface piece, back piece, 5a ... Side edge part of front and back piece, 5b ... Front and back face Inclined side end of the piece, 5c ... lower end of the front and back piece, 5d ... upper end of the front and back piece, 51 ... sealant layer of the front and back piece, 52 ... base material layer of the front and back piece, 53 ... of the front and back piece Barrier layer, 54 ... outer surface layer of front and back surface pieces, 55 ... release layer, 55a ... release layer extension part, 6 ... side piece, 6a ... side end part of side piece, 6b ... inclined side end part of side piece, 61 ... side piece sealant layer, 62 ... side piece base material layer, 63 ... side piece barrier layer, 64 ... side piece outer layer, 7 ... bag body, 71 ... storage part, 8 ... spout, 81 ... spout Conduit, 82 ... Spout fused portion, 91 ... First film, 92 ... Second film

Claims (1)

The bag body has at least front and back pieces made of a multilayer film, and the peripheral ends of the front and back pieces are heat-sealed in a state where the spout fusion part is sandwiched between a part of the upper end portions of the front and back pieces. By this, a spout pouch container with a spout attached to a part of the upper end of the front and back pieces ,
The multilayer film has two films,
By adhering the peripheral edge portions of the two films except for the left and right portions of the upper end portions of the two films corresponding to both sides of the position where the spout fused portion is heat-sealed, gap layer is provided between the inner surfaces of the two films, and the vent port communicating with said gap layer and the outside between the two films in the lateral portion of the upper portion are formed respectively, through the vent, A pouch container with a spout, wherein outside air can flow into and out of the void layer.

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