JP4097066B2 - Liquid food packaging bag - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a packaging bag, and more particularly to a packaging bag containing a tube enteral nutrient, a tube enteral liquid food, or the like.
[0002]
[Prior art]
Tube enteral nutrient (hereinafter sometimes abbreviated as nutrient) and tube enteral liquid food (hereinafter also abbreviated as fluid) are available in various packaging containers such as cans, paper containers, pouches and bottles. Among them, the pouch type is excellent in sealing and handling properties and is often used. The pouch type generally has a spout, and a tube is connected to the spout to administer, but especially in the case of nutrients and liquid foods, it should be diluted according to the patient's condition at the time of initial introduction. When stable, it is common to replenish deficient drugs and water. If there is only a spout, such operations are not possible or limited, and the administration is interrupted and the spout is also used as a replenishing port, or a part of the pouch is cut off and opened from there. There was a need to replenish. This is a complicated operation, and there are also problems in hygiene management such as the spout and the opening being contaminated and opening more than necessary.
[0003]
In order to solve the above problems, some have an injection port composed of a detachable cap or the like, but in order to maintain the sealing performance until use, the injection port is sealed with an inner seal made of a film or the like. . The inner seal has an easy peel specification and has a heat seal strength of 1 N or less. Therefore, when filling the contents and performing high-temperature and high-pressure sterilization such as retort treatment, the inner pressure during sterilization during retort treatment There was a problem that the strength did not reach the standard.
[0004]
[Problems to be solved by the invention]
The present invention can replenish moisture and the like from the outside before and during use such as administration of water and drugs, is excellent in handleability and hygiene management, is easy to manufacture, and is subjected to high temperature treatment such as retort treatment. The object is to provide a packaging bag having excellent durability when applied.
[0005]
[Means for Solving the Problems]
The present invention is a packaging bag comprising a plurality of film pieces sealed at the periphery thereof, each having an inlet member and a spout member attached to both upper end portions, and a bottom face portion having a gusset portion. The member is composed of a cap composed of a top surface portion and an outer peripheral portion provided with a female screw on the inner surface, and an injection port portion constituting an injection port provided with a male screw on the inner surface. have a circular protrusion which is in close contact or engagement with the inner peripheral surface side and the outer peripheral surface of the distal end portion at the inlet portion, a lower portion of both ends in the packaging bag hanging means capable hanging of the film piece is provided two In addition, when the two suspension means are provided at a position facing the inlet member and a position facing the spout member, respectively, and the suspension means provided at a position facing the inlet member is used. The inlet member A packaging bag, characterized in that usable as an outlet.
[0006]
It consists of a cap made of an outer peripheral portion that hangs down from the top surface portion and the periphery of the top surface, and has an internal thread on the inner surface, and an injection port portion that has an external thread and constitutes an injection port. By using an inlet member having an annular protrusion that is closely attached or fitted to the inner peripheral surface side and outer peripheral surface side of the tip portion, an inner seal is not required, and the inlet can be sealed only by a cap, Excellent handleability and hygienic management up to the opening of the protrusion, easy to manufacture, excellent durability when performing high temperature treatment such as retort treatment, and complete sterilization. The internal pressure strength can be adapted to the standard. Further, since the sealing property is high, it is possible to increase the inner diameter of the injection port. Moreover, it can be easily manufactured at low cost.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the present invention will be described in more detail with reference to the drawings.
The packaging bag which is an example of embodiment of this invention is shown in FIGS. 1 is a front view of the packaging bag, FIG. 2 is a cross-sectional view taken along line AA of the packaging bag of FIG. 1, and FIG. 3 shows a state in which the inlet member and the spout member are opened in the packaging bag of FIG. 4 is a side sectional view showing an example of the configuration of the cap of the inlet member in the packaging bag of FIG. 1, and FIG. 5 is an example of the configuration of the inlet portion of the inlet member in the packaging bag of FIG. 6 is a side view showing a state in which the cap in FIG. 4 and the injection port portion in FIG. 5 are screwed together, and FIG. 7 is a state in which the cap in FIG. 4 and the injection port portion in FIG. It is principal part sectional drawing which shows the sealing state of. In the packaging bag of FIG. 1, the main body portion 2 of the packaging bag 1 is formed as a seal portion 7 (indicated by hatching in the figure) by sealing the periphery of three film pieces. As shown in FIG. 2, the main part of the main body is configured with the film pieces 2 a and 2 b facing each other, and only the bottom surface portion 9 is arranged so that the film piece 2 c is interposed between the film pieces 2 a and 2 b, and is a gusset portion. It is formed in a shape. By providing the gusset portion, the self-supporting property of the packaging bag is improved and the accommodation amount is also increased. In addition, when the packaging bag of the present invention is used for accommodating a tube enteral nutrient or a tube enteral liquid food, it is preferable to provide a gusset portion from the viewpoint of workability during transportation or hot water roasting. The contents are filled by filling the contents from the unsealed portion and sealing the unsealed portion after forming another portion with only a part of the upper end portion 8 of the packaging bag as the unsealed portion. In addition, the notch parts 10 and 10 are provided in the side part of the film piece 2c which forms a gusset part for the form stabilization of a packaging bag lower part.
[0008]
The main body 2 of the packaging bag 1 has a shape in which the planar shape is partially cut inward, and an inlet member 4 is provided on one side 3 of the cut-out portion. The inlet member 4 forms the injection port 11 in an opened state, and supplies water, medicine, and the like to the inside of the packaging bag from the injection port. The inlet member 4 has a top surface portion 40 as shown in FIG. 4 and a cap 4a formed of an outer peripheral portion 41 having a female screw 42 on the inner surface, and a male screw 60 on the outer surface as shown in FIG. And an inlet portion 4b that constitutes the inlet port 11 and further includes attachment portions 4c that are thin boat-shaped at both ends for attachment to the packaging bag body. The inlet portion 4b and the attachment portion 4c are integrally formed, and the attachment portion 4c is attached by thermal bonding or the like between film pieces (2a and 2b in FIG. 2) around the packaging bag body. The cap 4a is provided for the purpose of protecting the injection port, hygiene management, and revealing the sealed state before opening, and the cap 4a and the injection port portion 4b are closed by screwing of the female screw 42 and the male screw 60.
[0009]
An annular protrusion 43 is provided on the inner surface of the cap 4a. As shown in FIG. 7, the annular projection portion is brought into close contact with the inner peripheral surface side, the top portion, and the outer peripheral surface side of the distal end portion of the injection port 11 of the injection port portion 4 b when closing the plug, so that a sealed state appears. .
[0010]
The male screw 60 provided in the injection port portion is formed by spirally forming a plurality of screw threads, and the length of the screw thread top portion in the outer peripheral direction of the injection port is 1/3 to 1/4 of the outer periphery of the injection port. Set to the length of By setting the length of the screw thread top portion of the male screw 60 as described above, when the male screw 60 is screwed with the female screw 42, the cap 4a is rotated by 50 ° to 90 ° with respect to the injection port portion 4b. It can be closed.
[0011]
The cap 4a is provided with a circumferential band 47 connected to the lower end of the outer peripheral portion 41 of the cap by a breakable connecting portion as a tamper-evident mechanism. The circumferential band 47 has a tongue piece projecting inward, and when sealing before opening, the tongue piece is locked to a jaw portion of a flange portion 61 formed in an inlet portion 4b described later. By opening the cap, the connection portion is broken and the circumferential band 47 is separated, and the cap 4a can be removed leaving only the circumferential band 47 in the inlet portion 4b. When the circumferential band 47 is separated, it is clearly shown that it is opened. A stopper 49 is provided in order to prevent breakage of the break when the cap is closed after filling the contents. Further, a plurality of ribs 50 are formed on the outer surface of the cap 4a as a slip stopper when the cap is opened.
[0012]
In addition to the male screw 60, a flange 62 and a vent 62 for preventing the stored object from sagging are provided on the outer surface of the inlet 4b, and a circumferential band separated between the flange 61 and the vent 62 when opened. 47 remains.
[0013]
When it is necessary to inject water, diluent, medicine, etc. at the time of use, the cap 4a of the inlet member 4 is opened and opened to form the inlet 11 from the inlet 11 to the inside of the packaging bag. Make an injection. At the same time, the opening of the cap breaks the connecting portion and separates the circumferential band, leaving only the circumferential band in the inlet portion, allowing the cap to be removed, clearly indicating that the cap has been opened.
[0014]
A spout member 5 is attached to the packaging bag 1 at a position facing the inlet member 4. The spout member 5 serves as a spout when opened, and is used to pour out the contents to the outside by connecting a tube or the like to the spout. As shown in FIG. 3, the spout member 5 is a member formed integrally with a mounting portion 5 c having a thin boat shape at both ends for attaching to the packaging bag body, and a hollow tube 5 b serving as a spout, It is comprised from the cap 5a fitted to it, and the attaching part 5c is attached to a packaging bag main body by heat bonding etc. The cap 5a is attached from the viewpoint of cap part protection and hygiene management. The tip of the tube 5b formed by injection molding is fitted inside the cap 5a, and unsealing for pouring is performed by rotating the cap 5a and the tip of the tube 5b fitted in the cap 5a. Is performed by rotating integrally with the cap 5a and removing.
[0015]
The packaging bag 1 further has a through-hole 6 penetrating the film piece as a suspending means capable of hanging the packaging bag at a seal portion in the periphery of the film piece in the vicinity of the inlet member 4. By suspending the packaging bag 1 by hooking a jig in the through-hole 6, the spout member 5 is disposed below, and the pouring of the contents from the spout member 5 and the pouring disposed above the spout member 5 are performed. Replenishment from the inlet 11 formed by opening the inlet member 4 is facilitated.
[0016]
In the present invention, the constituent material of the inlet member is not particularly limited as long as it does not affect the contents and can exhibit a desired sealing property. For example, a medium density or a high density of polyethylene resin, polypropylene resin, etc. These olefin resins, polyester resins, polyamide resins, and the like can be used. Moreover, you may be comprised from several different members, such as having a liner including a projection part in the cap inner surface so that it may mention later. As a material constituting the liner, it is only necessary to have appropriate cushioning and flexibility within a range that does not hinder the action of the present invention. Low density, medium density, medium density, high density polyethylene resin and polypropylene resin, A thermoplastic elastomer or the like may be used. These materials are molded by an injection molding method, an injection molding method, or the like. In addition, the liner can be formed on the inner surface of the cap by either molding and attaching separately from the cap shell outside the cap, supplying the liner with the constituent material of the liner to the cap shell, or molding the cap shell and the liner at the same time. May be used, and an adhesive or the like may be used as necessary.
[0017]
In the present invention, the shape of the inlet member includes a top surface part and a cap made of an outer peripheral part provided with a female screw on the inner surface, and an inlet part provided with a male screw on the outer surface and constituting the inlet part. The cap inner surface is not particularly limited as long as it has an annular protrusion that is in close contact with or fitted to the inner peripheral surface side and outer peripheral surface side of the distal end portion of the injection port portion, and can exhibit a desired sealing performance. . The size (height, width) and shape of the annular projection, the number of installations, the installation position, etc. are not limited, but a plurality of annular projections such as the outer annular projection, the top annular projection, and the inner annular projection in the above embodiment. It is preferable that sealing is performed by the protruding portion.
[0018]
Moreover, it is preferable that the inlet part in an inlet member has the attaching part for attachment to a packaging bag main body in the lower part. The attachment method of the attachment part to the packaging bag body may be performed according to the sealing method of the peripheral part of the film piece in the packaging bag body, for example, when the film piece has a sealant layer and is sealed by thermal bonding The injection port portion is attached to the packaging bag main body by disposing the attachment portion at a predetermined position between the film pieces constituting the protruding portion, heat-pressing them together, and sealing them by thermal bonding.
[0019]
In the present invention, it is preferable that the inlet member is provided with a tamper-evident mechanism that clearly indicates that the seal is released from the point of hygiene management. As an unsealing clarification mechanism, the structure provided with the circumferential band connected by the connection part which can be fracture | ruptured at the outer peripheral part lower end of a cap like the said embodiment is mentioned, for example. In this configuration, at the time of sealing, the circumferential band is locked to a flange portion or the like formed at the inlet portion. However, when the cap is opened, the connection portion is broken and the circumferential band is separated. The cap can be removed leaving only the band in the inlet.
[0020]
In this invention, what is necessary is just to set suitably the size of each part of an inlet member according to the kind and usage form of the accommodation accommodated in a packaging bag, but the internal diameter of the inlet in an inlet member is 12 mm-25 mm. Is preferred. Since the packaging bag of the present invention is not hermetically sealed by an inner seal, the inner diameter of the injection port can be increased while maintaining the sealing performance until opening, and in particular, by setting the inner diameter of the injection port in the above range, the packaging bag is externally provided. Even when replenishment is performed using a medicine can or the like, injection can be facilitated.
[0021]
In the present invention, the portion to which the inlet member of the packaging bag body portion is attached, when the inlet is opened, creates a flow path for external replenishment, and it is easy to replenish the contents inside the package from the outside. In order to achieve this, the film piece may be formed in a shape bulging outward using a pressing die or the like.
[0022]
In this invention, the constituent material of the some film piece which comprises a packaging bag main body is not specifically limited, The material conventionally used for the pouch can be used. Examples of such materials include, as a base material, various films such as a biaxially stretched polyolefin resin film, a biaxially stretched polyamide resin film, a biaxially stretched polyester resin film, and an ethylene-vinyl alcohol copolymer film. Examples of these base materials include low-density polyethylene, linear low-density polyethylene, ethylene-vinyl acetate copolymer, and composite films obtained by laminating an olefin-based thermal adhesive resin such as polypropylene as a sealant layer. From the standpoint of enhancing the protection of the contents, a film obtained by further laminating a single layer film or a plurality of composite films, or a film obtained by laminating silica, aluminum oxide, or the like can be used. In particular, when a film obtained by laminating an aluminum oxide layer on a laminated film of biaxially stretched polyethylene terephthalate or biaxially stretched polyamide is used as a base material, it has excellent barrier properties and aroma retention, and a pinhole tester or metal detector after filling. And heating with microwaves are also possible. Thickness after filling can be generally 30 to 150 μm, and the overall size can also be set appropriately according to the capacity. The packaging bag body is formed by sealing the peripheral part by heat bonding of the sealant layer according to the structure of the film piece.
[0023]
The shape of the main body portion of the packaging bag of the present invention is not particularly limited as long as the peripheral portions of the plurality of film pieces are sealed, and the peripheral portions of the two film pieces are sealed as in the above embodiment. In addition to the gusseted shape at the center and the gusseted shape, only the periphery of the two film pieces is sealed, and one or both side surfaces or the top surface is also provided with a gusseted portion. It is possible to measure an increase in
[0024]
When forming the main body part of the packaging bag of the present invention, there is no particular limitation as long as the seal shape and seal width of the peripheral part of the film piece can be sealed, and a hole for hanging or a hook part as in the above embodiment is formed. The shape and width may be changed as possible.
[0025]
The packaging bag of the present invention preferably has hanging means that can be hung on the packaging bag because the packaging bag is used by suspending it when containing a tube enteral nutrient or a tube enteral liquid food. As the hanging means, a through hole may be formed in the seal portion as in the above embodiment, or a hanging tool such as a hook formed separately may be attached. A plurality of these suspending means may be provided, and the arrangement thereof is not limited. From the state in use, the suspending means is provided in the vicinity of the inlet member, while the spout member is connected to the inlet. It is preferable to provide it at a position facing the member. By setting it as such arrangement | positioning, the replenishment from the injection port formed by extraction of the accommodation thing from a spout member and opening of an injection port member becomes easy.
[0026]
In the packaging bag of the present invention, the shape and constituent material of the spout member are not particularly limited, and those commonly used can be used, and the attachment portion attached to the packaging bag body and the hollow tube serving as the spout are integrated. What was shape | molded is preferable. The attachment part is attached to the packaging bag body by thermal bonding or the like, but it is preferable that both ends have a thin boat shape. The spout is sealed by sealing the end with heat, fitting or screwing a lid or cap, sealing with a sealing material, or the like.
[0027]
The packaging bag of the present invention is used as follows. After only a part of the upper end portion of the packaging bag is formed as an unsealed portion and the other portion is formed by fusion or the like, the contents are filled from the unsealed portion and the unfused portion is sealed. Thereafter, a retort sterilization process, a high temperature instantaneous sterilization process, or the like is performed as necessary. When these processes need to be performed, the material of the film piece, the inlet member, and the spout member constituting the packaging bag is selected in advance accordingly. At the time of pouring out the contents, as in the first embodiment, it is suspended by the suspending means, the spout is opened, a tube or the like is connected, and the contents are extracted. On the other hand, water, a diluent, a medicine, etc. are opened by removing the cap of the injection port member, and injected into the inside of the packaging bag from the formed injection port.
[0028]
The packaging bag of the present invention is used when there is a possibility of injecting a liquid or the like from the outside in addition to the dispensing of the contents. Particularly suitable for enteral nutrition.
[0029]
[Another embodiment]
The packaging bag of the present invention may be formed as shown in FIGS. 8 and 9, for example. 8 and 9 show an example of another embodiment of the packaging bag of the present invention. FIG. 8 is a front view of the packaging bag, and FIG. 9 is a cross-sectional view of the packaging bag of FIG. As shown in FIG. 8, both the inlet member 4 and the spout member 5 are attached to the upper part of the packaging bag 1 ′, and are used as hanging means at both ends of one piece having a larger seal width at the lower part of the packaging bag 1 ′. The through holes 6a and 6b may be formed. By attaching the two suspending means 6a and 6b to a position facing the inlet member 4 and a position facing the spout member 5, respectively, the gusset portion is installed downward, and the cap 4a of the inlet member 4 is placed. Is opened, the inlet 11 is formed, the inside of the packaging bag is replenished from the inlet 11, the cap 4 a is closed and sealed again, and a jig is hooked into the through-hole 6 a to wrap the packaging bag 1. 'Is suspended, the spout member 5 is opened, and the contents are poured out. After the contents are poured out, the inside of the packaging bag is further replenished from the inlet 11 and then a jig is hooked into the through-hole 6b to suspend the packaging bag 1 ', and the connecting member is screwed into the inlet 4b. By doing so, the additionally replenished contents may be poured out from the inlet member 4. That is, even if the packaging bag 1 'is suspended by hooking a jig on any of the suspending means 6a and 6b, the contents are poured from either the inlet member 4 or the outlet member 5 that opposes it. It becomes possible to put out.
[0030]
【Example】
A laminated film in which a 12 μm thick polyethylene terephthalate film, a 15 μm thick polyamide film, a heat-resistant aluminum oxide (Al ₃ O ₂ ) thin film, and a polypropylene film are sequentially laminated via an adhesive layer is shown in FIG. A laminated film obtained by sequentially laminating a silica-deposited polyester film, a polyamide film having a thickness of 15 μm, and a polypropylene film via an adhesive layer on the film pieces 2a and 2b in the packaging bag constitutes the gusset portion in the packaging bag of FIG. Using the film piece 2c, the peripheral part was heat-sealed with the polypropylene film side as the sealant layer, and the packaging bag 1 having the same configuration as that of FIG. 1 was produced. At that time, the injection port member 4 (injection port inner diameter 20.7 mm) made of high-density polyethylene and having the structure shown in FIGS. 4 to 7 is thermally bonded to one side of the peripheral portion so that the attachment portion 4c is sandwiched between the film pieces. Moreover, the spout member 5 made of polypropylene resin was thermally bonded so that the attachment portion 5c was sandwiched between the film pieces. Furthermore, as a suspending means, a through hole 6 was formed by punching out one piece with a large seal width. The size of the packaging bag was approximately 180 mm in width (the width of the accommodating portion was approximately 120 mm), 220 mm in height, the maximum height of the gusset portion was 40 mm, the seal width was 5 mm, and the seal width in the through-hole forming portion was 35 mm. The through hole was an ellipse having a major axis of 24 mm and a minor axis of 18 mm. The upper part of the packaging bag was an unsealed part, and after filling the contents, it was fused and sealed by heat sealing. A jig is hooked on the through-hole 6 to suspend the packaging bag 1, the spout member 5 is opened and the contents are poured out, while the cap 4 a of the inlet member 4 is opened to close the inlet 11. Then, the inside of the packaging bag was supplied from the inlet 11.
[0031]
【The invention's effect】
Since the packaging bag of the present invention has an injection port, it is possible to replenish moisture and the like from the outside during use such as drug administration, and the injection port has a specific structure. Excellent, easy to manufacture, excellent durability when subjected to high temperature treatment such as retort treatment, etc. Excellent durability, complete sterilization is possible, and the internal pressure strength during retort treatment can be adapted to the standard it can. Further, it is easy to manufacture and is advantageous in terms of cost.
[Brief description of the drawings]
FIG. 1 is a front view of a packaging bag as an example of an embodiment of the present invention.
FIG. 2 is a cross-sectional view of the packaging bag of FIG. 1 along AA.
FIG. 3 is a view showing a state where the inlet member and the spout member are opened in the packaging bag of FIG. 1;
4 is a side cross-sectional view showing an example of the configuration of the cap of the inlet member in the packaging bag of FIG. 1. FIG.
5 is a side view showing an example of the configuration of the inlet portion of the inlet member in the packaging bag of FIG. 1. FIG.
6 is a side view showing a state where the cap of FIG. 4 and the injection port portion of FIG. 5 are screwed together.
7 is a cross-sectional view of an essential part showing a sealed state in a state where the cap of FIG. 4 and the injection port portion of FIG. 5 are screwed together.
FIG. 8 is a front view of a packaging bag as an example of another embodiment of the present invention.
9 is a cross-sectional view taken along the line AA of the packaging bag of FIG. 8. FIG.
[Explanation of symbols]
1, 1 'Packaging bag 2 Packaging bag body 3 Notch portion 4 Inlet member 5 Outlet member 6, 6a, 6b Hanging means 7 Sealing portion 8 Packaging bag body upper portion 9 Packaging bag body bottom portion 10 Notch portion

Claims (6)

It seals the peripheral portion of the plurality of film pieces, the inlet member and the spout member to the upper end portions mounted respectively, a packaging bag having a gusset portion to the bottom portion, the inlet member, heaven The cap consists of an outer peripheral part that hangs down from the peripheral edge of the surface part and the top part, and has an internal thread on the inner surface, and an injection port part that has an external thread and constitutes the injection port. the inner peripheral surface of the parts and have a circular protrusion which is in close contact or fitted to the outer peripheral surface side, the film piece bottom edges in the packaging bag hanging means capable hanging of two provided, and the The two suspending means are respectively provided at a position facing the inlet member and a position facing the spout member, and when the suspending means provided at a position facing the inlet member is used, the pouring means is used. The inlet member is a spout Packing bags, characterized in that the available. The packaging bag according to claim 1, wherein a length of the screw thread top portion of the male screw in an outer peripheral direction of the injection port is 1/3 to 1/4 of an outer peripheral length of the injection port. The packaging bag according to claim 1 or 2, further comprising a tamper-evident mechanism by a circumferential band connected by a breakable connecting portion at a lower end of the outer peripheral portion of the inlet member. The packaging bag according to any one of claims 1 to 3, wherein an inlet inner diameter of an inlet port in the inlet member is 12 mm to 25 mm. The packaging bag according to any one of claims 1 to 4, wherein the packaging bag is used for enteral liquid food. The packaging bag according to any one of claims 1 to 4, wherein the packaging bag is for a tube enteral nutrient.

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