JP2005206162A - Pouch with spout - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a pouch with a spout capable of easily supplying water or the like by opening/closing a straight fastener while the plastic-made straight fastener internally provided on an upper portion of the pouch. <P>SOLUTION: In the pouch with the spout, a peripheral edge part of a barrel member formed of polygonal plastic film is sealed, and the content spout is provided in a part of the peripheral edge part. A straight projecting part is formed on one face of a film-like base material in a vicinity of the peripheral edge part of the pouch separated from the content spout. An openable/closable plastic-made straight fastener having a recessed part to be engaged with the projecting part formed on the face opposing thereto is bonded with both ends connected to the peripheral edge part of the pouch so as to demarcate the internal space of the pouch into the side with the content spout and the side of an unsealing scheduled part side. The projecting part and the recessed part of the straight fastener are blocked in a liquid-tight manner from the internal space of the pouch with the content spout by the film having a weakened portion. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

The present invention relates to an administration container for enteral nutrients, liquid foods, etc., a pouch with contents pouring outlets such as so-called liquid food pouches, and more specifically, the contents in the pouches to the subject. When replenishing water after administration, an opening for injecting drinking water into the pouch is provided with a plastic linear fastener at the upper edge without using a separate member such as a spout. In addition, the present invention relates to a pouch with a spout that can be easily replenished with moisture by opening and closing the linear fastener.

JP 2000-7033 A JP 2000-6999 A JP 2000-152975 A

As shown in FIG. 13, Patent Document 1 heat-seals a peripheral edge e of a film having a heat-sealable synthetic resin on the inner layer, attaches a dispensing member b to one side of the packaging bag, and the opposite sides. Discloses a packaging bag a for enteral enteral nutrient, a so-called pouch for liquid food, which is provided with an injection member c having a lid member. Holes (hanging means) d for suspending the pouch for liquid food are respectively formed in the upper e1 and the lower e2 of the peripheral edge e, and the holes d2 formed in the lower peripheral edge e2 are poured out. When cutting and opening the spout of the member b and attaching the pipe for supplying the contents, it is for hanging on a hanging tool (not shown). At the time of administration, the hole d1 or d3 formed in the upper peripheral edge e1 is hooked on the hanging tool.

Patent Document 2 also relates to a nutrient packaging bag having the same purpose as Patent Document 1, and the feature thereof is that it can be suspended by a flexible sheet piece as shown in FIG. A filling device c for injecting the filling material is provided at one edge of the main body of the liquid food pouch a, and an extraction device b for pouring the filling material is provided at the other edge, and the filling device The inlet c is formed larger than the outlet b of the extraction tool. Further, in this liquid food pouch, one side edge is folded inward as a gusset f to form a bottomed liquid food pouch, and the other side edge is heat-sealed without forming a gusset. ing. As a result, when the liquid food pouch is transported, the gusset forming portion can be placed as the bottom, and stable transportation can be performed.

As shown in FIG. 15, Patent Document 3 is configured such that the lower part of the liquid food pouch a serves as a content spout, and the spout is formed by tearing the vicinity of the tip using the cut portion g <b> 2. b.
In addition, when water is replenished after the contents are poured out, a part of the package is cut using the cut portion g1 above the liquid food pouch, and the subsequent pouch is sealed using a zipper-type open / close seal. Part h is performed.

The liquid food pouches disclosed in Patent Documents 1 and 2 are each a separate injection port (filler) larger than the spout as a means for replenishing water after administration of the pouch contents. It is a requirement to bother to install.

Further, Patent Document 3 has a simple method of tearing a part of a pouch to form an opening without using a separate filling tool as a hydration means, and a zipper-type sealing is used as a sealing structure for that part. Using fasteners.

However, as in Patent Documents 1 and 2, incorporating a spout of another member into a part of the pouch not only makes the manufacturing process complicated, but also makes it expensive and expensive for a one-way liquid food pouch. In addition to being economical, and even after disposal after the use of the pouch, it may not be possible to dispose of it as it is. .
In addition, as in Patent Document 3, a means for tearing a part of a pouch and opening the pouch is simple and excellent in economic efficiency. Because the contents of the pouch for liquid food are always in contact, when resealing the pouch using this sealing tool, there is a risk that foreign matter will adhere to the sealing tool part or bacteria may enter. Therefore, it is not preferable from the viewpoint of hygiene.

In view of the current state of the prior art, the object of the present invention is to use an extra effort to seal the opening after opening without using a separate spout and using a sealing tool. In addition, by using a specific sealing tool to form the opening and seal the opening, it is possible to prevent foreign substances and germs from entering as much as possible and to easily replenish and re-seal drinking water etc. It is to provide a pouch with a spout such as a liquid food pouch.

The present invention has been proposed to achieve the above object, and is characterized by comprising the following requirements.
That is, according to the present invention,
A pouch with a spout that seals the periphery of a body made of a polygonal plastic film and has a content spout at a part of the periphery,
In the vicinity of the peripheral edge of the pouch separated from the content outlet, a linear convex portion is formed on one surface of the film-like substrate, and a concave portion that engages with the convex portion is formed on the surface facing the convex portion. An openable / closable plastic linear fastener is fused with both ends connected to the pouch periphery so as to divide the interior space of the pouch into a side having the content outlet and a planned opening side, and The pouch with the spout is characterized in that the convex portion and the concave portion of the linear fastener are liquid-tightly blocked from the pouch internal space where the content spout is located by a film having a weakened portion.

Moreover, according to this invention, the said weakening part is provided with the said pouch with a spout in which it can be fractured | ruptured after cancellation | release of engagement of a linear fastener.

Moreover, according to this invention, the film with the said weakening part provides the said pouch with a spout which is the film-form base material in which the said linear fastener was extended.

Further, according to the present invention, the fusion of the linear fastener to the pouch body is performed on the opposite side of the linear convex portion and the concave portion from the side where the weakened portion is present, except at both ends of the linear fastener. The pouch with a spout is provided by fusing the film-like base material with a pouch body along a convex part and a concave part.

Further, according to the present invention, there is provided the above-described pouch with a spout, wherein the content spout is provided with a content spouting tool that is a separate member from the plastic film of the pouch body.

Moreover, according to this invention, the said pouch with a spout in which a suspension means is formed in the pouch peripheral part on the opposite side to the side provided with the content spout of the said pouch with a spout is provided.

According to the present invention, there is provided the pouch with a spout as described above, wherein the plastic film constituting the body of the pouch is a laminated film having at least one barrier layer.

According to the present invention, in a pouch with a spout such as a liquid food pouch, dilution of contents,
A specific plastic linear fastener is attached at a location away from the content outlet as a water inlet for hydration after administration of the content and further for cleaning the indwelling line after use of the pouch. Thus, unlike the prior art, there is provided a pouch with a spout such as a liquid food pouch that can achieve its purpose sufficiently with a simple configuration without bothering to put a hard separate filler on the pouch. This pouch with a spout can be provided as a one-way container, has the advantage of being able to be dispensed with after use, and further eliminates the need to separate the filler, and the inlet and contents before opening. It is superior to conventional liquid food pouches in terms of hygiene in that it prevents contact of objects and keeps the inlet after opening clean.

The best mode for carrying out the present invention will be described below with reference to the drawings.
FIG. 1 is an explanatory view showing an embodiment of a pouch 1 with a spout according to the present invention.
FIG. 6 is an explanatory view showing another embodiment of a pouch with a spout. FIG. 9 is an enlarged view of a cross-sectional structure of a plastic linear fastener in the liquid food pouch according to the present invention, and FIG. 10 is a plan view thereof. FIG. 11 is a schematic diagram showing a cross-sectional view of a configuration in which a film having a linear fastener and a weakened portion is formed of separate members, and FIG. 12 shows different fused states between the linear fastener and the inner surface of the pouch (a), ( It is a schematic diagram shown by sectional drawing of b).

The pouch 1 with a spout according to the present invention is, roughly speaking, usually sealed with a peripheral portion 13 of a body made of a plurality of polygonal plastic films, and provided with a spout 10 at a part of the peripheral portion. The article pouring tool 11 is mounted, and a plastic linear fastener 2 is fused on the inner side in the vicinity of the peripheral edge of the pouch separated from the contents pouring tool 11. An opening scheduled portion 15 is provided between the seal portion 13 and the seal portion 13. The unscheduled opening portion 15 is a portion that is opened using a cutting tool such as scissors or a knife after the linear fastener 2 is used, and the portion can be opened with fingers without using a cutting tool. May be formed as a weakened portion provided with a score or the like, or a notch or the like may be made in the opening start portion. In addition, although the heat seal is preferable for the sealing of the pouch periphery, it may be performed by ultrasonic sealing.

The shape of the pouch with a spout is not particularly limited, but is usually an irregular polygonal shape based on a quadrangle, as described in each of the above-mentioned patent documents and FIGS. Often formed. In addition, the corner | angular part of polygonal shape does not need to have a corner | angular part exactly | strictly, The shape which tied the straight line and the straight line with the curve may be sufficient. It may be generally polygonal when viewed as a whole. The plastic film constituting the body of the pouch 1 with a spout is preferably transparent so that the administration state of the contents can be confirmed from the outside. The composite film is used.

Since this plastic film seals the periphery, when this is done by heat sealing, the inner layer must be made of heat-sealable plastic, even in the case of a composite film. Yes, usually heat seal layer (inner layer) / barrier layer (intermediate layer) / surface layer (outer layer), heat seal layer (inner layer) / base material layer (intermediate layer) / barrier layer (intermediate layer) / surface layer ( It is preferable to use a laminated film comprising an outer layer). Among them, a laminated film comprising polyethylene terephthalate in which an inner layer is polypropylene, an intermediate layer is nylon, and an outer layer is a thin film such as aluminum oxide or inorganic silicon as a barrier layer on the inner layer side. It is preferable to use it because it is excellent in gas barrier properties, puncture resistance and transparency.

In this case, the intermediate layer has a function as a barrier layer for preventing deterioration or decay of the contents. In addition to nylon and a vapor deposition layer, an ethylene-vinyl alcohol copolymer resin film (EVOH), etc. Is used. In addition to polypropylene, polyethylene or the like is used as the inner layer, and nylon or the like is used as the outer layer in addition to polyethylene terephthalate.

The content pouring tool 11 in the pouch 1 with a spout of the present invention is a so-called spout molded from a generally hard plastic having resistance to retort, such as polypropylene resin, and itself described in each of the aforementioned patent documents. Any known pouring tool can be used. This pouring tool is a peripheral part of the plastic film that constitutes the body of the pouch for liquid food.
Since it is attached in a state of being fused between the inner layers of the plastic film, the material of the pouring tool must be able to be fused with the inner layer of the film constituting the pouch, but the shape of its tip is a pipe. It may be tapered so that it can be easily inserted into the pipe, and in order to make it difficult for the pipe to be pulled out, any appropriate device such as forming an uneven shape on the outer periphery of the tip may be used. In addition, the spout of the pouch with a spout of the present invention is formed by attaching a content pour tool with a pour nozzle to a pouch body so that a pour work such as the installation of a meridian tube is performed. However, the pouch body may be formed in the shape of a nozzle to be a spout without attaching a separate content extraction tool.

As shown in FIGS. 9 and 10, the plastic linear fastener 2 of the present invention is attached to two opposing film-like base materials 22 and 22, and is linearly convex in the longitudinal direction on one surface. 21b
The linear fastener itself is used for re-sealing the food packaging bag after opening. It is known as “Rock” (registered trademark). In the present invention, it is important that the convex portion 21b and the concave portion 21a of the linear fastener 2 are liquid-tightly blocked from the pouch inner space 24 where the contents spout 10 is located by the film having the weakened portion 23. is there. And the film which has the said weakened part may be comprised with film 22 'of a different member from this linear fastener 2, as shown in FIG. It is preferable that the number of members is small. In that case, the convex portion 21b and the concave portion 21 of the linear fastener 2 are provided.
The film-like base material 22 is connected to each other via the weakened portion 23 by extending the inner side of the pouch of the two film-like base materials 22 to which a is attached (the side opposite to the opening scheduled portion side). is important.

In this configuration, the portion of the linear fastener film-like base material 22 extending inward of the pouch is connected via the weakening portion 23, so that the pouch contents are projected from the film-like base material 22. The linear fastener 2 can be obtained simply by contacting the surface opposite to the surface on which the portion and the recess are formed.
The pouch contents do not come into contact with the protrusions and the recesses, that is, the engagement portions themselves. Therefore,
The pouch contents do not adhere to the engaging portion of the linear fastener 2 or the periphery thereof. For example, in the liquid food pouch, the opening scheduled portion 15 outside the linear fastener is opened after administration, and the linear fastener 2 portion is opened. Even if it comes into contact with the outside air, it can prevent foreign substances and germs from entering due to the contents adhering to the part, and in a clean state, water from the opened linear fastener can be removed. Can be implemented.

The weakened portion of the linear fastener does not break when the contents are contained in the pouch, and it is sufficient that the weakened portion of the linear fastener is maintained in an articulated state to the extent that it is continuously broken after opening the linear fastener. It can be easily formed by means such as thinning or forming a score. The linear fastener needs to have heat adhesion to the inner surface of the pouch and resistance to retort during sterilization of the contents, and is formed by extrusion molding using a polypropylene resin or the like. In that case, the weakening part can be comprised by extruding thinly from the other part of a film-like base material, for example. Moreover, it is good also as a multilayered structure of two or more layers using different resin in the uneven | corrugated formation surface side of a fastener, and the sealing surface side for the purpose of improving thermal adhesiveness.

The linear fastener 2 is fused to the pouch body by fusing the film base 22 of the linear fastener and the body film on the inner surface of the pouch with heat or ultrasonic waves. In order to partition the pouch internal space and prevent the contents from engaging with the engaging portion of the fastener, both ends of the linear fastener need to be sealed. Preferably, both end portions are connected and sealed to the seal portion at the peripheral portion of the pouch. An example of the form of fusion of the pouch body and the film-like substrate is shown in FIG.
This is schematically shown in (b). Further, the fusion along the linear convex portion and the concave portion is shown in FIG.
), The film length between the fusion part closest to the weakened part, the convex part and the concave part is a and a ', respectively, and the length between the weakened part 23 is b and b', respectively. When the height when engaging the convex part and the concave part is h,
a + a ′ + h <b + b ′
It is preferable to have the relationship in order to break the weakened portion after the linear fastener is disengaged.

As shown in FIG. 12 (a), the pouch body and the film-like base material are not fused on the weakened portion side with respect to the convex portion and the concave portion, and as shown in FIG. 12 (b). Although there is a form in which the film-like base material on both sides of the part and the concave part is fused to the pouch body, preferably FIG.
As shown in (a), except for both ends of the linear fastener, the film-like substrate opposite to the side having the weakened portion with respect to the linear convex portion and the concave portion is placed on the pouch body along the convex portion and the concave portion. It is preferable that the film-like base material portion on the weakened portion side with respect to the convex portion and the concave portion is not fused with the pouch body film because the fusion work is easy.

The outer end side of the pouch of the linear fastener may be sealed inside the pouch periphery so that it can be opened, but the outer end of the linear fastener is also positioned inside the pouch and covered with the pouch body. It is preferable to seal the outer end normally as with the other pouch periphery. In that case, an opening score or the like may be formed between the linear fastener and the pouch peripheral seal portion on the outer end side. Moreover, although the position where the content extraction tool 11 is mounted is not particularly limited,
Usually, the lower peripheral edge of the pouch as shown in FIG. 1 or any corner portion of the pouch as shown in FIG. 2 is preferable.

The content pouring tool 11 and the linear fastener need only be spaced apart from each other, and the formation location is not particularly limited, but when the pouch is suspended with the pouring tool 11 down, It is preferable that the fastener is located at a position higher than the height of the position because water can be injected from the opening. The liquid food pouch of the present invention is generally used, for example, by being hung on a hook-shaped suspending tool (not shown), and in this case, at least the side of the pouch on which the content extraction tool is mounted. It is necessary that the suspending means 14 is formed on the opposite side.

As the suspending means 14, it is most common to make a hole at a predetermined portion of the peripheral edge (seal part) 13, but it is not a complete hole but may be a notch that allows a suspending tool to enter. . The suspending means 14 is generally provided at the seal portion of the pouch facing the location where the contents pouring tool 11 is attached. This suspending means is used when the contents of the pouch with the spout are poured out. For example, in the configuration as shown in FIG. 1, for example, preparation before administration of a liquid food pouch is performed by forming (not shown) the side on which the content extraction tool is attached. It can also be used during work such as connecting a pipe to the content extraction tool.

The configuration of the pouch shown in FIG. 3 to FIG. 8 shows another aspect of the present invention. In the aspect of FIG. 3, the seal portion in which the suspending means 14 is formed and the linear fastener are enclosed. It is considered that the portions that are separated are separated by the cuts 16 so that the opening operation of the linear fastener 2 portion can be performed independently of the suspending means 14. In addition, the contents pouring tool 11 can be covered with a cap 11 ', so that the handling of the pouch can be performed more hygienically.

4 and 5 are formed in a state in which the scheduled opening portion 15 is protruded outward from the seal portion where the suspending means 14 is formed, and the suspending means 14 is formed. Each of the sealing parts is opposed to the contents pouring tool 11 attached to the heat sealing part in a state where the opposed lower corner part is obliquely cut away, and the suspended pouch is well balanced. There is. Moreover, since the content extraction tool 11 does not protrude from the corner of the pouch because the seal portion to which the content extraction tool 11 is attached is cut obliquely, the stacking is efficient during packaging. The advantage is that it is not necessary to form an extra space in the packaging box.

The embodiment shown in FIG. 6 is a modification of the embodiment shown in FIG.
The inner end portion of each is a convex portion, and this portion is a flap 17. In addition, flap 17
The center part of the tip of this is made coincident with the planned opening portion 15, and as shown in FIG.
7a may be formed. Thereby, there is an advantage that the opening operation of the linear fastener 2 part is more stably performed. Further, since the flap 17a remains without being cut off after the planned opening portion 15 is cut off with scissors or the like, the pouch is not easily slipped off and easily gripped by placing a finger on the flap 17a when grasping and lifting the pouch inlet at the time of water addition.
7 and 8, the pouch with spout of the present invention can be used as a standing pouch, and the side opposite to the side on which the content pouring tool 11 is attached is provided with the bottomed portion 18. By doing so, the pouch before use can be placed in a stable state.

The pouch with a spout of the present invention can be used for ordinary pouch manufacturing equipment as it is, whether it is a content pouring tool or a linear fastener. It can be attached to the inner surface by heat fusion or the like, and the seal part at the periphery of the pouch can be formed by heat-sealing the periphery part using, for example, a seal bar corresponding to the shape of the contents pouring tool and the linear fastener. it can.

As described above in detail, the pouch with a spout of the present invention has a specific linear fastener without attaching a separate injection tool when replenishing water after administration of contents in a pouch for liquid food, for example. Just use it, it can be hydrated cleanly, it is not only inexpensive, but the molding process is simplified, and there is no need to separate the filling tools at the time of disposal.
Widely used as a one-way pouch with a spout.

It is a front view which shows the suitable structure of the pouch with a spout of this invention. It is a front view which shows another example of the pouch with a spout of this invention. It is a front view which shows another example of the pouch with a spout of this invention. It is a front view which shows another example of the pouch with a spout of this invention. It is a front view which shows another example of the pouch with a spout of this invention. It is a front view which shows another example of the pouch with a spout of this invention. It is a front view which shows another example of the pouch with a spout of this invention. It is a front view which shows another example of the pouch with a spout of this invention. It is an expanded sectional view of the linear fastener used for the pouch with a spout of the present invention. It is a top view of the state where the linear fastener similarly opened. It is the fragmentary sectional view which comprised the linear fastener used for the pouch with a spout of this invention, and the weakening part by another member. It is a fragmentary sectional view showing a different form of fusion of a linear fastener used for a pouch with a spout of the present invention and a pouch trunk. It is a perspective view of the conventional liquid food pouch shown by patent document 1. FIG. It is a perspective view of the conventional liquid food pouch shown by patent document 2. FIG. It is a perspective view of the conventional liquid food pouch shown by patent document 3. FIG.

Explanation of symbols

1 Pouch with spout 10 Spout 11 Contents spout 11 'Spout cap
12 Sealing part of contents pouring tool 13 Pouch peripheral part (seal part)
DESCRIPTION OF SYMBOLS 14 Hanging means 15 Opening planned part 16 Notch 17 Flap 18 Bottomed part 2 Linear fastener 21 Linear fastener engaging part 21a Recessed part of linear fastener
21b Convex part of linear fastener
22 Film-like base material of linear fastener 22 'Film having weakened portion 23 Weakened portion
24 Pouch internal space on the side where the content outlet is located 25 Pouch internal space on the side of the planned opening side a Pouch for liquid food b Content extraction tool
c Injection member
d to d3 holes
e ~ e2 Pouch peripheral part
f Gusset g1, g2 Notch
h Zippered seal

Claims (7)

A pouch with a spout that seals the periphery of a body made of a polygonal plastic film and has a content spout at a part of the periphery,
In the vicinity of the peripheral edge of the pouch separated from the content outlet, a linear convex portion is formed on one surface of the film-like substrate, and a concave portion that engages with the convex portion is formed on the surface facing the convex portion. An openable / closable plastic linear fastener is fused with both ends connected to the pouch periphery so as to divide the interior space of the pouch into a side having the content outlet and a planned opening side, and The pouch with a spout is characterized in that the convex portion and the concave portion of the linear fastener are liquid-tightly blocked from the pouch internal space where the content spout is located by a film having a weakened portion. The pouch with a spout according to claim 1, wherein the weakened portion can be broken after the engagement of the linear fastener is released. The pouch with a spout according to claim 1 or 2, wherein the film having the weakened portion is a film-like substrate in which the linear fastener is extended. Fusion of the linear fastener to the pouch body is performed by projecting the film-like substrate on the side opposite to the side having the weakened portion with respect to the linear convex portion and the concave portion, except for both ends of the linear fastener. The pouch with a spout according to claim 3, wherein the pouch is fused with the pouch body along the recess. The pouch with a spout according to any one of claims 1 to 4, wherein the content spout is provided with a content pourer separate from the plastic film of the pouch body. 6. A pouch with a spout according to any one of claims 1 to 5, wherein a hanging means is formed at the peripheral edge of the pouch opposite to the side provided with the content spout of the pouch with a spout. The pouch with a spout according to any one of claims 1 to 6, wherein the plastic film constituting the body of the pouch is a laminated film having at least one barrier layer.

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