JP2001139035A - Packaging bag band - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a packaging bag band which can automatically fill packaging bags having a spout in a continuously and automatically sterilized manner. SOLUTION: In the packaging bag band 10, a plurality of packaging bags 30 having the spout 20 on an upper end part 5 thereof are continuously joined with side end parts 4 and 4 adjacent thereto.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a packing bag band having a continuous packing bag provided with a spout.

[0002]

2. Description of the Related Art There has been a strong demand for a so-called automatic filling method for filling contents into a packaging bag without human intervention from the viewpoint of reduction of manufacturing cost and hygiene management. Various technologies have been proposed. For example, Japanese Patent Application Laid-Open No. 57-175535 discloses that, as an example of automatic filling in a sterile atmosphere, a continuous sealed bag is manufactured by a thermal bonding method using a plastic film or a composite film, and the sealed bag is externally provided. Irradiate the radiation to sterilize the contents to obtain a sealed sterile packaging bag, and when filling the contents, open the sealed sterile packaging bag in a sterile atmosphere and fill with the pre-sterilized contents, and then An aseptic filling method for sealing is described.

In recent years, for example, a separate member serving as a spout has been attached near the center of the upper end of a packaging bag such as a gusset bag, or the shape of the upper corner has been changed so that the portion serving as the spout protrudes from the periphery. Cut freestanding bags are used,
There has been a demand for a technology capable of automatically filling or aseptically filling a packaging bag having such a spout.

[0004] However, in the case of automatically filling a packaging bag provided with such a spout, for example, if the contents are to be filled from the spout, the contents cannot be filled in a short time, so that it is not efficient. Sometimes the contents may adhere to the spout. In the case of a packaging bag with a spout made of a separate material, such adhesion may result in imperfect sealing and may cause leakage. There is also a fear that bacteria from the plant will invade and deteriorate. Such a problem does not change even in the case of retort sterilization or boil sterilization, and there has been a demand for a means capable of performing automatic filling efficiently and aseptic filling with a simple device without fear.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and it is possible to efficiently and automatically fill a packaging bag provided with a spout, and also to automatically and aseptically fill a packaging bag with a simple device. The purpose is to provide.

[0006]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a wrapping bag band comprising a wrapping bag made of a film provided with a spout at the top thereof, which is continuous through side edges.

Here, it is preferable that the packaging bag is a pair of packaging bags having a continuous upper portion or lower portion. In particular, when the spout has a member different from the film constituting the packaging bag at the upper portion, The packaging bag is preferably a pair of packaging bags having a continuous lower portion.

Further, it is preferable that the packaging bag is a self-standing bag having a folded portion at a lower portion or the gusset bag having a folded portion at a side edge.

It is more preferable that the inside of the packaging bag is sterilized by radiation.

That is, in the packaging bag band of the present invention, since the packaging bag made of a film having a spout on the upper side is continuous via the side edge, for example, if the lower end of the packaging bag is opened,
The contents can be filled without using the spout or the upper part narrowed by the spout. Here, the lower end of the packaging bag may be opened in advance, or the sealed one may be opened at the time of filling. If the lower end of the packaging bag has been opened beforehand, the work of opening is saved, so the workability is good.However, depending on the contents, it may not be preferable from the hygiene management point of view, for example, the contents are preferably aseptically filled. In such a case, it is preferable to open the lower end of the previously sealed packaging bag at the time of filling.

If the packaging bag is a pair of packaging bags having a continuous upper or lower portion, the package is opened by cutting the joint of the packaging bags joined in two rows in the upper and lower directions, and the contents are filled from here. Can be. Therefore, this configuration is preferable because two bags can be opened at the same time without generating any extra scraps.

Further, when the spout is a member different from the film constituting the packaging bag, and the packaging bag is a pair of packaging bags having a continuous lower portion, the filling is performed by cutting the joint between the pair of packaging bags. Since it can be done from the mouth, it is not necessary to consider the convenience at the time of filling work when setting the spout, so for example, an inner seal is applied to the spout in advance, or the spout is break open type (thin part by hand) It is possible to solve the above-mentioned problems such as leakage and invasion of bacteria, which is more preferable.

Furthermore, if the above-mentioned packaging bag is a self-standing bag having a folding part at the bottom (bottom), it is used as a substitute for a bottle because of good self-sustainability, and the effect of installing various spouts is great.
And in the case of a self-standing bag, it is usually filled from the top,
It is preferable to form a pair of packaging bags having a continuous upper portion. However, depending on the installation method of the spout, the space of the upper filling port may not be sufficient, and in this case, the filling may be performed from the side edge.

If the packaging bag is a gusset bag having a fold at the side edge, it is an efficient packaging form capable of storing a large amount of contents with a small amount of packaging material, and has a great effect of installing a spout. And in the case of a gusset bag, since a spout is usually installed in the center part, it is often filled from the lower part. Therefore, it is preferable to form a pair of packaging bags whose lower parts are connected.

When the inside of the packaging bag is sterilized by the radiation, for example, the lower end of the packaging bag is opened under a sterile atmosphere, and the contents that have been sterilized in advance are automatically filled from the lower end. Then, by resealing the lower end, each packaging bag can be aseptically filled, which is particularly preferable.

[0016]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in more detail with reference to the drawings. FIG. 1 is a plan view of a packaging bag band 10 illustrating one configuration example of the packaging bag band of the present invention.

Here, the packaging bag strip 10 is formed by joining a plurality of packaging bags 30 each having a spout 20 to adjacent side ends 4 and 4. This packaging bag belt 1
0, the first wrapping material A serving as the front surface of the packaging bag 30 and the second wrapping material B serving as the back surface are vertically overlapped, and both widthwise ends of the two wrapping materials A and B are arranged along the length direction. Each of them is heat-welded, and furthermore, they are welded along the width direction at predetermined intervals in the length direction to form the upper end portion 5, the lower end portion 6, and the side end portions 4, 4 of the continuous packaging bag 30. The upper corner portion of each packaging bag 30 of the two packaging materials A and B is formed by projecting a projection (a spout 20) projecting toward the other upper corner side of the packaging bag 30 adjacent thereto.
Is cut out in a substantially square shape, and the cut-out peripheral portions of both packing materials A and B are heat-welded, so that the packaging bag belt 10 in which the packaging bag 30 whose periphery is sealed is continuous can be manufactured. . In the case of this packaging bag strip 10, the upper end portion 5 or the lower end portion 6 does not need to be heat-welded, but if the inside is sterilized as described later, the upper end portion 5 and the lower end portion 6 of the packaging bag 30 are heated. Welding is desirable.

In the above-mentioned packaging bag strip 10, the welding width of each packaging bag 30 is not particularly limited, and is substantially the same as that of a normally-heat-sealed packaging bag (usually 0.3 to 0.3 mm).
1.5 cm).

The material of the packaging bag 30, that is, the packaging materials A and B, is not particularly limited in its type, and may be a material conventionally used for forming a packaging bag. For example, a polypropylene film, various films such as a polyester film and a nylon film, such as a single-layer film of a heat-welding resin film such as a polyethylene film and a polyethylene film or a nylon film such that these heat-welding resin films are the innermost surface, aluminum foil and various inorganic vapor deposition layers and the like. A laminated multilayer film or the like can be preferably used. Examples of such a multilayer film include, for example, polyester film (12 μm) / nylon film (15 μm) / aluminum foil (9 μm) / low density polyethylene film (80 μm). Examples of a sheet or film having a multilayer laminate structure Kill.

Here, as shown in FIG. 2, the packaging bag band of the present invention is a packaging bag band 11 in which each of the packaging bags 30 similar to the above-mentioned packaging bag band 10 is further joined in a state where the upper ends thereof abut each other up and down. It may be.

Further, as shown in FIG.
Instead, the spout member 21 may be attached to the center of the upper end of the packaging bag 31, and the packaging bag band 12 may be joined such that the lower ends of the packaging bags 31 are abutted up and down. Here, the configuration of the spout member 21 is not particularly limited. For example, a spout body including a spout body and a cap screwed to the tip thereof may be used.
It is also possible to use a break-open type in which the spout member is opened at the time of opening. When the assembling bag of the screw cap type is to be aseptically filled as described later, if the inner seal is implemented in the spout using a separate film (not shown), bacteria can be prevented from entering from the screw portion. ,
More preferred.

Further, as shown in FIG.
Instead of each of the packaging bags 30 of the above-mentioned packaging bag belt 11, each of the packaging bags 3
2 is a self-standing bag having a folded portion (bottom portion) 8 at the bottom thereof, or each packaging bag 33 is folded at both sides instead of each packaging bag 30 as shown in FIG. It is also suitable as a gusset bag having (part) 9. In addition, the above-mentioned packaging bag 34 further enhances self-support by forming a linear welded portion 91 by heat welding the folded portion 9 and the front or back surface of the packaging bag 34 in the vicinity of both upper and lower corners. It is.

Here, in order to form the above-mentioned folded portion 8 in a self-standing bag whose side ends are joined to each other, it is only necessary to omit the step of cutting into individual bags during the process of manufacturing a normal self-standing bag. In the case of the gusset bag (packing bag 33) having the folded portions 9 on both sides, as shown in FIG. 6, a first wrapping material (main wrapping material) A serving as a front portion of the gusset bag, and a rear surface portion of the gusset bag. And a second packaging material (main packaging material) B, a third packaging material (side packaging material) C serving as a side portion of the gusset bag is formed in the center in the width direction so as to form a front surface portion and a rear surface portion. The required number of the parts folded from both sides so that both ends are in contact with each other, the length direction of the first and second packaging materials A and B (arrow X in the figure),
They are arranged along the width direction (arrow Y in the drawing) so as to be separated from each other by a predetermined distance in the traveling direction in the heat sealing operation.

The first packaging material A and the second packaging material B, on which the third packaging material C is interposed in this manner, are formed by a plurality of gusset bags having a desired shape, and the lower end portions of the paired gussets are arranged vertically. Then, one gusset bag and a gusset bag adjacent thereto are heat-welded so as to form a two-row gusset bag packaging bag band connected at each side end of each gusset bag.

That is, in the intermediate region in the width direction of each third packaging material C, the inner surface of the first packaging material A and the outer surface of the front surface of the third packaging material C,
The inner surface of the second packaging material B and the outer surface of the rear surface portion of the third packaging material C are heat-welded in a belt shape in the width direction of the main packaging material (arrow Y in the drawing), and the side ends of the adjacent packaging bags. Parts are joined. At this time, the inner surfaces of the front part and the rear part of the third packaging material C are not welded to each other.

Further, when forming the linear welded portion 91 (see FIG. 5), the inner surface of the first packaging material A and the outer surface of the front surface of the third packaging material C, and the inner surface of the second packaging material B and the third The outer surface of the rear surface portion of the packaging material C is linearly heat-welded so that the linear welding portion 91 is formed.

At each side end of the first packaging material A and the second packaging material B partitioned by the above-mentioned welding, an opening formed by the first packaging material A and the second packaging material B for each section. The rear end side of each spout member 21 (see FIG. 5) is inserted and placed in the portion, and the spout member 21 is placed in the first packaging material A.
Then, the respective side end portions of the first packaging material A and the second packaging material B are thermally welded in the length direction (arrow X in the drawing) in the same manner as described above so as to be fixed between the second packaging material B and the second packaging material B. This makes it possible to manufacture the packaging bag band 14 in which a plurality of gusset bags (packing bags 33) are continuous.

It is preferable that the packaging bags 30 to 33 constituting the packaging bag bands 10 to 14 are sterilized by radiation.

For example, as shown in FIG. 1, it is wound around the core 7, and the total amount of irradiation by the electron beam irradiation device is 25.
It is preferable that the inside of each of the packaging bags 30 to 33 is irradiated with an electron beam so as to be about kilogray or less, and the inside of each of the packaging bags 30 to 33 is sterilized by radiation to form the packaging bag bands 10 to 14.

In this way, the inside of each packaging bag is sterilized,
The packaging bag band wound into a roll is set in a filling machine, unwound at the time of use, and after sterilizing the outer surface with a bactericide, a portion other than the spout of the packaging bag in an aseptic atmosphere, for example, an end as described later. Cut the part or center and open it to fill the contents into the packaging bag, then seal the opened part by heat welding and automatically fill the contents. It is possible to reliably prevent bacteria from invading from the outside without adhering to the surface and impairing the sealing property.

Here, in the case of automatic filling as described above,
For example, in the case of the packaging bag belt 10 shown in FIG.
It is preferable that the welded portion of the lower end portion 6 is cut out and opened, and the connecting portion is cut along the cutting line D, re-welded after filling and sealed, and when filling from the side end portion 4, the adjacent portion is adjacent. It is also preferable to cut and open one of the side ends 4 and 4 so that one side end is in a non-welded state, and then weld and seal after filling.

In the case of the wrapping bag band 11 and the wrapping bag band 13 shown in FIGS.
Is cut along the cutting line D to form a bag with an unwelded upper end portion 5 opened, and it is preferable that the bag is welded and sealed after filling, and the packaging bag band 12 and the packaging bag band 14 shown in FIGS. If this is the case, it is preferable to cut the packaging bag 31 and the packaging bag 33 in the same manner as unopened lower end portions 6 of the opened bags and then weld and seal them after filling.

It should be noted that the present invention is not limited to the above configuration, and various changes may be made without departing from the spirit of the present invention.

[0034]

According to the present invention, it is possible to automatically fill a packaging bag provided with a spout, and also to automatically and continuously fill aseptically.

[Brief description of the drawings]

FIG. 1 is a plan view illustrating a first configuration example of a packaging bag belt of the present invention.

FIG. 2 is a plan view illustrating a second configuration example of the packaging bag belt of the present invention.

FIG. 3 is a plan view illustrating a third configuration example of the packaging bag belt of the present invention.

FIG. 4 is a plan view illustrating a fourth configuration example of the packaging bag belt of the present invention.

FIG. 5 is a plan view illustrating a fifth configuration example of the packaging bag belt of the present invention.

FIG. 6 is a perspective view illustrating a method for manufacturing the above-mentioned packaging bag belt.

[Explanation of symbols]

 A, B Packaging material (film) 10-14 Packaging bag strip 20, 21 Spouting port 30-33 Packaging bag 4 Side end (side edge) 5 Upper end (upper) 6 Lower end (lower) 8, 9 Folding part

Claims (6)

[Claims] 1. A packaging bag band, characterized in that a packaging bag made of a film having a spout at the top is continuous via side edges. 2. The packaging bag according to claim 1, wherein the packaging bag is a pair of packaging bags having a continuous upper or lower portion. 3. The packaging bag band according to claim 2, wherein the spout is a member different from the film constituting the packaging bag, and the packaging bag is a pair of packaging bags having a continuous lower portion. 4. A packaging bag according to claim 1, wherein said packaging bag is a self-standing bag having a folded portion at a lower portion. 5. The packaging bag according to claim 1, wherein the packaging bag is a gusset bag having a folded portion on a side edge. 6. The packaging bag according to claim 1, wherein the packaging bag is sealed, and the inside thereof is sterilized by radiation.
Packaging bag described in the section.