JP2007308150A - Pouch container - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a pouch container having a good usability which does not need to be held in a state in which the injection port section is opened by hands when hot water is injected. <P>SOLUTION: This pouch container is equipped with a pouch body 10 in which a fluid food or the like is filled, and a spout 20 for pouring out which is fitted on the pouch body 10 in order to pour out the fluid food or the like being filled in the pouch body 10. By cutting the upper end section of the pouch body 10, an injection port section for injecting hot water is formed. At the section which becomes the injection port section in the pouch body 10, a pair of strip-like fastener members 30 which engage with each other are heat-welded on the internal surface. At the same time, on the lower sides of the fastener members 30, a shape-retaining member 40 consisting of a strip having a rectangular cross section, which is formed of a plastic material having heat-resistance and is plastic-deformed, is heat-welded. By the existence of the shape-retaining members 40, when the injection port section M on the pouch body 10 is opened, the injection port section M is held in the opened state. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a pouch container filled with liquid food, enteral nutrients and the like (hereinafter referred to as liquid food, etc.), and more particularly to a pouch container into which hot water can be injected during use.

  An example of this type of pouch container is shown in FIG. The pouch container 50 includes a pouch body 51 filled with a liquid food or the like, which is formed in a bag shape by a synthetic resin flexible sheet having an inner surface as shown in FIG. The pouch body 51 includes a spout 52 attached to the pouch body 51 in order to pour out the liquid food filled in the pouch body 51, and the spout 52 is broken to form a spout 52 in the spout 52. Thereafter, a tube is connected to the spout 52, and a liquid food or the like is administered to a person through the tube while the pouch body 51 is suspended.

  The upper portion of the pouch main body 51 is broken to form an inlet M for injecting hot water as shown in FIG. 2B. From the inlet M, the hot water is supplied. The liquid food filled in the pouch main body 51 is diluted by injecting the liquid, or the liquid food attached to the inner surface of the pouch main body 51 after the liquid food is poured out and replenished with water. Can be done.

  In addition, a pair of band-shaped fastener members 53 that are formed of a heat-adhesive plastic material and are meshed with each other are thermally welded to the inner surface of the portion of the pouch body 51 that becomes the injection port M. The pair of fastener members 53 can hold the inlet M formed in the pouch body 51 in a closed state. Therefore, after injecting hot water from the injection port portion M formed by breaking the upper portion of the pouch body 51, the pair of fastener members 53 are engaged to use the inlet port M in a closed state. Is possible.

JP 2005-206162 A

  However, in the case of the pouch container 50 described above, the inlet M formed in the pouch main body 51 is normally in a substantially closed state even if the pair of fastener members 53 are not engaged with each other. When injecting, the injection port portion M must be kept open by hand, and there is a problem that the hot water injection workability is poor.

  Therefore, an object of the present invention is to provide an easy-to-use pouch container that does not require an injection port portion to be kept open by hand when pouring hot water.

  In order to solve the above-mentioned problems, the invention according to claim 1 is a pouch container filled with liquid food or enteral nutrient, which is formed by a flexible sheet and forms a hot water inlet when used. A pouch body, and a spout attached to the pouch body in order to pour out a liquid food or enteral nutrient filled, and a portion serving as a hot water inlet in the pouch body is plastic. The present invention provides a pouch container characterized by having deformable shape retention.

  As described above, in this pouch container, the portion that becomes the hot water injection port portion in the pouch body has a shape-retaining property that can be plastically deformed, so that the injection port portion formed in the pouch main body at the time of use is opened. Then, since the injection port portion is held in an open state due to plastic deformation, the injection port portion of the pouch body does not naturally return to the original substantially closed state. Therefore, when pouring hot water from the pouring port portion, it is not necessary to keep the pouring port portion open by hand, and the hot water pouring workability is improved.

  Hereinafter, embodiments will be described with reference to the drawings. FIG. 1 shows a pouch container 1 filled with a liquid food or the like. As shown in the figure, the pouch container 1 includes a pouch main body 10 filled with liquid food and the like, and a pouch attached to the pouch main body 10 for pouring the liquid food filled in the pouch main body 10 and the like. An outlet spout 20 is provided. By cutting the upper end of the pouch body 10, an inlet M for injecting hot water is formed as shown in FIG.

  The pouch body 10 is made of a polyethylene layer such as a low-density polyethylene, a high-density polyethylene, a linear low-density polyethylene, or an ethylene-vinyl acetate copolymer. A pair of front and back flexible sheets 11 and 11 laminated with a sealant layer made of a resin, a polypropylene resin such as an ethylene-propylene copolymer, an amorphous polyester resin, etc. A gas barrier layer such as a foil, a film of an ethylene vinyl alcohol copolymer, or a film on which an inorganic material such as silicon oxide is deposited may be laminated.) It is formed in a flat bag shape by heat-sealing the peripheral parts to each other. Outlet spout 20 is attached to the inclined edges are formed on one of the lower corner portion of the flexible sheet 11 and 11 is Le. In addition, the shaded display part in the figure shows the heat seal part of the pouch body 10.

  Further, the pouch body 10 has a wide side edge seal portion in the vicinity of the diagonal position of one lower end corner portion to which the spout 20 for pouring is attached. A suspension hole 10a for suspending the pouch container 1 is formed. Therefore, as shown in FIG. 3, when the pouch container 1 is suspended by hooking the suspension hole 10a on the hook F or the like, the spout 20 for pouring is directed generally downward.

  In addition, the pouch body 10 has a pair of belt-shaped pairs formed on the inner surface of the pouch body 10 that are formed of a plastic material having thermal adhesiveness to the sealant layer of the flexible sheet 11. The fastener member 30 is thermally welded, and a plastically deformed cross-sectional rectangle formed of a plastic material having heat resistance and thermal adhesiveness to the sealant layer of the flexible sheet 11 below the fastener member 30. A shape holding member 40 made of a belt-like body is thermally welded. When the injection port M formed in the pouch body 10 is opened due to the presence of the shape holding member 40, the injection port M is opened. It is supposed to be kept in the state. The shape-retaining member 40 is not limited to the band-like body having the rectangular cross section as described above, and may be a belt-like body having a substantially elliptical cross section, a circular cross section, or a linear body having a cross-sectional polygonal shape. . Furthermore, as shown in FIG. 13 and FIG. 14 of Japanese Patent No. 3582854, a plurality of circular bars are used as cores, and a plate-like band is integrally inserted between the cores. Alternatively, the shape may be integrally arranged.

  As shown in FIGS. 1 and 4A, the spout spout 20 includes a flat boat-shaped mounting portion 21 that is heat-sealed to the pouch body 10, and a pour pipe that is connected to the mounting portion 21. And a through hole communicating with the extraction channel of the extraction pipe unit 22 is formed in the mounting unit 21. As shown in FIG. 4 (a), the dispensing pipe portion 22 includes a pipe main body 22a having a base end having a large diameter and a tip end having a small diameter, and a pipe connected to the tip of the pipe main body 22a. The main body 22a has a closing portion 22b for closing the pouring path, and a circumferential groove 22c is formed at the boundary between the pipe main body 22a and the closing portion 22b. Therefore, as shown in FIG. 4B, a spout is formed at the tip of the main body portion 22a by breaking off the closing portion 22b at the circumferential groove 22c portion. As shown, the tube C can be connected to the small diameter portion of the pipe body 22a in which the spout is formed.

  As shown in FIGS. 5 (a) and 5 (b), the fastener member 30 is composed of a male fastener member 30a and a female fastener member 30b that mesh with each other. The fastener member 30 b is thermally welded over the entire width of the flexible sheet 11 at the same height position below the cutting line on the upper inner surface of the flexible sheet 11 forming the pouch body 10. Note that the fastener member 30 does not necessarily have to be disposed over the entire width of the flexible sheet 11, and can be disposed inside the heat seal portions on both side edges of the flexible sheet 11.

  The male side fastener member 30a has a belt-like base sheet 31a having the same length as the width of the flexible sheet 11 forming the pouch body 10, and a central portion in the width direction of the base sheet 31a. It is comprised from the protrusion 32a extended in the longitudinal direction and the front-end | tip was formed in cross-sectional hook shape, and the base material sheet 31a is heat-welded by the inner surface of one flexible sheet | seat 11. As shown in FIG.

  The female-side fastener member 30b has a belt-like base sheet 31b having the same length as the width of the flexible sheet 11 forming the pouch body 10, and a longitudinal direction on the upper side in the width direction of the base sheet 31b. It is comprised from the groove 32b which meshes with the protrusion 32a of the male side fastener member 30a extended in the direction, and the base material sheet | seat 31b is heat-welded to the inner surface of the other flexible sheet | seat 11. FIG.

  Therefore, in this pouch container 1, after the inlet M is formed in the pouch body 10 by cutting the upper edge portion of the pouch body 10 sealed in a state filled with liquid food or the like, FIG. ), By releasing the meshing state of the protrusion 32a of the male fastener member 30a and the recess 32b of the female fastener member 30b, the inlet M of the pouch body 10 is opened, or again, The inlet port M of the pouch body 10 may be closed by engaging the protrusions 32a of the side fastener member 30a and the recesses 32b of the female side fastener member 30b with each other (see FIG. 5A). it can.

  The plastic material having heat resistance and thermal adhesiveness that forms the shape holding member 40 is one selected from polylactic acid resin, polyester resin, polyolefin resin, polyamide, polyurethane, polycarbonate, polyphenylene sulfide, and polyacetal. A resin composition mainly composed of two or more thermoplastic resins can be used, and the shape-retaining member 40 is formed by extrusion of such a resin composition into a strip or a line at an extrusion temperature equal to or higher than the melting point or softening point. The extruded product is cooled to 100 ° C. or lower and then stretched under a temperature condition of 60 to 180 ° C.

  Examples of the polyester resin include polyethylene terephthalate, polybutylene terephthalate, polyethylene naphthalate, polybutylene naphthalate, and various copolymerized polyesters. As the copolyester, for example, terephthalic acid and ethylene glycol are used as the main components of the dicarboxylic acid component and the diol component, respectively. As the copolymerization component, aromatic dicarboxylic acid (isophthalic acid, phthalic acid, 4,4′-biphenyl) is used. Dicarboxylic acid, stilbene dicarboxylic acid, naphthalenedicarboxylic acid, etc.), aliphatic dicarboxylic acid (malonic acid, succinic acid, glutaric acid, adipic acid, pimelic acid, suberic acid, azelaic acid, sebacic acid, etc.), alicyclic dicarboxylic acid ( Dicarboxylic acid components such as cyclohexanedicarboxylic acid), diethylene glycol, polyalkylene glycol, neopentyl glycol, 1,3-propanediol, 1,4-butanediol, 1,6-hexanediol, cyclohexane-1,4-dimethanol Etc. Such copolyesters with all components.

  Examples of the polyolefin-based resin include polyethylene (particularly, ultrahigh molecular weight polyethylene), polypropylene, and an olefin-based copolymer containing an olefin such as an ethylene-propylene copolymer as a monomer component.

  In particular, a resin composition in which a polyolefin resin such as polyethylene and polypropylene is combined at a ratio of 5 to 90 parts by weight (preferably 5 to 50 parts by weight) with respect to 100 parts by weight of a polyester resin such as polyethylene terephthalate.

  As described above, since the shape holding member 40 must hold the injection port portion M in the opened state when the injection port portion M of the pouch body 10 is opened, the shape holding member 40 has an appropriate rigidity and plastic deformability. In order to provide such moderate rigidity and plastic deformability, the resin composition includes glass fiber, filler (for example, calcium carbonate, clay, white carbon, titanium white, Barium sulfate, zinc, etc.), lubricant (eg, zinc stearate, etc.), plasticizer (phthalate, adipate, or polyester plasticizer), softener, crystallization accelerator, pigment, etc. are appropriately added.

  In addition, as described above, when the shape maintaining member 40 is formed of a resin molded product whose main component is a thermoplastic resin, there is a correlation that the rigidity increases as the draw ratio increases. In order to give rigidity enough to hold the inlet M of the pouch body 10 in an open state, the stretch ratio of the resin molded product is in the range of 2 to 20 times (preferably 7 to 16 times). You can adjust with. When the draw ratio of the shape holding member 40 is smaller than 2, the rigidity is lowered and the flexibility is increased, so that it is difficult to hold the inlet M in an open state. This is because if the stretch ratio is greater than 20 times, the rigidity increases and it is difficult to open the injection port M.

  Moreover, since the rigidity of the shape holding member 24 made of a resin molded product varies depending on its thickness, it is necessary to appropriately set the thickness according to the tensile elastic modulus. In order to hold the inlet M of the pouch body 10 in the pouch container 1 in an open state, when using a belt-like body as a shape holding member, the thickness is 0.5 to 5 mm, and the cross-section is a linear shape with a circular shape. When using a body as a shape maintaining member, it is necessary to adjust the outer diameter to about 0.5 mm to 5 mm. In addition, the tensile elasticity modulus of the shape holding member 40 can be adjusted also with the kind etc. of thermoplastic resin.

  As described above, the pouch container 1 is plastically deformed with the fastener member 30 including the male-side fastener member 30a and the female-side fastener member 30b that mesh with each other at the portion that becomes the hot water inlet M of the pouch body 10. Since the shape holding member 40 is heat-welded, the male fastener member 30a and the female fastener member are formed after forming the inlet M for injecting hot water by cutting the upper end of the pouch body 10. When the meshing state of 30b is released and the injection port portion M is opened, the shape maintaining member 40 is plastically deformed and held in the open state, so that the injection port portion M of the pouch body 10 is naturally It does not return to the original substantially closed state. Therefore, when pouring hot water from the pouring port M, it is not necessary to keep the pouring port M open by hand, and the hot water pouring workability is improved. Further, after the hot water is injected, when the injection port portion M is closed, the shape maintaining member 40 is plastically deformed and the injection port portion M is held in a substantially closed state, and the male side fastener member 30a and the female side fastener member are retained. By meshing with 30b, the inlet port M can be kept closed.

  Further, since the shape holding member 40 is disposed in the lower part of the fastener member 30, the shape retaining member 40 is picked when the engagement between the protrusion 32a of the male fastener member 30a and the recess 32b of the female fastener member 30b is released. Rigidity is not given to the upper part of the meshing part of the fastener member 30 to be different, and it has the same flexibility as a normal pouch container with a fastener. Therefore, the engagement between the fastener members 30 can be released without feeling extreme discomfort compared to a conventional pouch container in which the shape holding member 40 is not thermally welded.

  In the above-described embodiment, the shape retaining member 40 is thermally welded to the lower portion of the fastener member 30 in the portion that becomes the injection port portion M in the pouch main body 10, but the present invention is not limited to this. 6 (a) and 6 (b), a linear shape holding member 40 is provided between the flexible sheet 11 forming the pouch body 10 and the base sheet 31a of the male side fastener member 30a. As shown in FIGS. 7 (a) and 7 (b), a linear or belt-like shape holding member 40 is embedded in the base sheet 31a of the male side fastener member 30a. As shown in (b), in the state in which the housing groove 33a is formed in the heat welding surface of the base sheet 31a of the male fastener member 30a and the shape holding member 40 is housed in the housing groove 33a, the male fastener member 30a. Soft It is also possible to thermally welded sexual sheet 11.

  In the configuration as shown in FIG. 6, since the shape retaining member 40 is not sandwiched on the female fastener member 30b side, when the inlet M of the opened pouch body 10 is closed, the male fastener member 30a Even if the slightly deformed portion remains, the female side fastener member 30b can easily follow the deformed portion of the male side fastener member 30a. Therefore, the meshing workability between the fastener members 30 is not deteriorated, and the effect that poor meshing hardly occurs is obtained.

  Further, when the shape retaining member 40 is sandwiched between both the male fastener member 30a side and the female fastener member 30b side, the base sheet 31a, 31b partially swells inward due to the presence of the sandwiched shape retaining member 40. The protruding portions may be in contact with each other and may interfere with the engagement between the protrusion 32a of the male fastener member 30a and the recess 32b of the female fastener member 30b. In this pouch container, the male fastener member 30a Since the shape holding member 40 is sandwiched only on the side, the engagement between the fastener members 30 is not hindered.

  Further, when the configuration shown in FIGS. 7 and 8 is adopted, the base sheet 31a thermally welded to the flexible sheet 11 does not partially swell inward, and in particular, in the type shown in FIG. Since the shape retaining member 40 is housed in the housing groove 33a formed in the base sheet 31a of the side fastener member 30a, the bag making of the pouch body 10 and the heat welding of the fastener member 30 can be performed. Can be manufactured.

  Further, as described above, instead of using a separate shape retaining member, as shown in FIGS. 9A and 9B, the male side fastener member 30a itself can be plastically deformed with appropriate rigidity. It is also possible to form with a simple plastic material. In that case, as shown in FIG. 5A, the entire male fastener member 30a is formed of a specific plastic material as described above (for example, a resin composition or the like forming the shape retaining member 40). However, considering the meshing property of the protrusion 32a meshing with the recess 32b of the female side fastener member 30b, as shown in FIG. 5B, only the base sheet 31a portion is specified as described above. It is desirable that the protrusion 32a is formed of a normal plastic material. In addition, in the same figure (a), (b), the part shown by an oblique line is a part which has shape retainability.

  Moreover, in each embodiment shown in FIGS. 6-9, although shape retainability is provided to the male side fastener member 30a side, it is not limited to this, Shape retainability is provided to the female side fastener member 30b side. It is also possible to impart shape retainability to both the male fastener member 30a side and the female fastener member 30b side.

  Moreover, in each embodiment mentioned above, although the shape holding member 40 is attached to the inner surface side of the pouch main body 10, it is not limited to this, For example, to Fig.10 (a), (b) As shown, the shape holding member 40 may be attached to the outer surface side of the pouch body 10, or the belt-like or linear shape holding member may be sandwiched between the layers of the flexible sheet 11 forming the pouch body 10. Good.

  In each of the above-described embodiments, the shape holding member 40 formed of a plastically deformable plastic material is used. However, the present invention is not limited to this. For example, a plastically deformable metal wire is polychlorinated. It is also possible to use a shape retaining member covered with a plastic material such as vinyl or polyethylene terephthalate.

  In the embodiment described above, the pouch main body 10 has been described with respect to the flat bag type pouch container 1. However, the present invention is not limited to this. For example, the pouch main body 10A has a pouch main body 10A like the pouch container 2 shown in FIG. The bottom gusset type having a self-supporting property or the side gusset type (not shown) may be used. Note that the pouch container 2 shown in FIG. 11 is also configured so that the pouch body 10A is filled with liquid food, etc., and the heat-sealed edge of the pouch body 10A is used for pouring the filled liquid food or the like. While the spout 20 for pouring is mounted | worn, the fastener member 30 and the shape holding member 40 are heat-welded to the part used as the injection port part M in 10 A of pouches.

  Moreover, although each embodiment mentioned above demonstrated the pouch containers 1 and 2 by which the fastener member 30 was attached to the part used as the injection port part M in the pouch main bodies 10 and 10A, it is not limited to this, A pouch is used. The present invention can also be applied to a pouch container in which a fastener member is not attached to a portion serving as an inlet port in the main body.

It is a top view which shows one Embodiment of the pouch container concerning this invention. It is a top view which shows the state which cut | disconnected the upper end part of the pouch main body in a pouch container same as the above, and formed the injection port part. It is a figure which shows the use condition of a pouch container same as the above. (A) is a plan view showing the spout for spout mounted on the pouch container same as above, (b) is the tip of the main body portion by breaking off the blocking portion from the spout tube portion of the spout for spout same as above (C) is a figure which shows the state which connected the tube to the main-body part which broke off the obstruction | occlusion part from the extraction pipe part in the spout for extraction same as the above. (A) is the elements on larger scale which expanded the part which becomes an injection port part in a pouch container same as the above, (b) is the elements on larger scale which show the state where the engagement of the fastener member attached to the injection hole part was released. It is. (A) is a partial expanded sectional view which shows the part used as the injection port part in the pouch container which is other embodiment, (b) is an exploded sectional view which shows the part used as the injection port part same as the above. (A) is a partial expanded sectional view which shows the part used as the injection port part in the pouch container which is other embodiment, (b) is an exploded sectional view which shows the part used as the injection port part same as the above. (A) is a partial expanded sectional view which shows the part used as the injection port part in the pouch container which is other embodiment, (b) is an exploded sectional view which shows the part used as the injection port part same as the above. (A), (b) is explanatory drawing for demonstrating to which part shape retention property is provided to a fastener member, when shape retention property is provided to a fastener member. (A), (b) is the elements on larger scale which show the part used as the injection port part in the pouch container which is other embodiment. It is a perspective view which shows the pouch container which is other embodiment. (A) is a top view which shows the conventional pouch container filled with a liquid food etc., (b) is explanatory drawing for demonstrating the usage method of a pouch container same as the above.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1, 2 Pouch container 10, 10A Pouch main body 10a Pendant hole 11 Flexible sheet 20 Spout for pouring 21 Attaching part 22 Extracting pipe part 22a Pipe main body 22b Closure part 22c Circumferential groove 30 Fastener member 30a Male side fastener member 30b Female Side fastener member 31a, 31b Base sheet 32a Projection 32b Recess 33a Housing groove 40 Shape retaining member M Inlet part

Claims (1)

A pouch container filled with liquid food or enteral nutrients,
A pouch body formed by a flexible sheet and capable of forming a hot water inlet when used,
In order to pour out the filled liquid food and enteral nutrient, a spout mounted on the pouch body is provided,
The pouch container is characterized in that a portion serving as a hot water inlet in the pouch body has a shape-retaining property capable of plastic deformation.

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