JP2594068B2 - Cylindrical film package filled with processed food - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a package in which processed foods such as sausages and cheeses are filled in a cylindrical film, and particularly to a cylinder which makes it easy for consumers to open the film. The present invention relates to a film-like package.

[Background of the Invention]

FIG. 11 shows a conventional example of a cylindrical film package filled with processed food such as sausage.

In this type of package, as shown in the sectional view of FIG. 12, both edges 1a of a film 1 of vinylidene chloride or the like are formed.
1b are overlapped, and the joined portion is welded by high-frequency welding or ultrasonic welding means to form a welding line S, thereby forming a cylindrical packaging tube 5. In the case of sausage, processed meat is filled in this cylindrical packaging tube 5, and in the case of stick cheese,
Process cheese is filled in the cylindrical packaging tube 5. Then, both ends in the longitudinal direction of the packaging tube 5 are squeezed, and the squeezed portion is tightened and closed by a metal clip 2 made of aluminum or the like.

Then, in the case of sausage, for example, after the processed meat is filled in the packaging tube 5, the process proceeds to the boiling process. In this boil process, tension is generated in the film 1 due to an increase in the internal pressure of the packaging tube, and this tension is
It acts in the direction indicated by arrow F in FIG. However, in this conventional example, as shown in FIG. 12, the film edges 1a and 1b
Are superimposed and welded to each other in a substantially planar state. Therefore, even if a force indicated by F acts on the welding line S due to the film tension, the welding strength of the welding line S with respect to the force F is sufficiently high, and the packaging tube 5 is less likely to be broken in the boiling process. .

[Problems to be solved by the invention]

However, when trying to tear open the film 1 in the above cylindrical film package, other than grasping the film edge 1a protruding outward from the welding line S with a finger,
There is no trigger for breaking the weld line S. However, since the film edge 1a protruding outside the packaging tube 5 is very short, it is difficult to securely grasp the film edge 1a with a finger. Therefore, the film edge
It is impossible to tear open the film 1 from the portion 1a. Therefore, when the consumer intends to tear open the film 1, it is necessary to cut the film 1 with a knife or the like, for example, and use the cut as a trigger to break the film 1 and peel off the film from the contents. As described above, conventionally, it was very difficult to peel the film 1 from the contents without a knife or the like at hand.

In the case of a relatively small package such as stick cheese, an opening tape colored red or the like is attached, and the film 1 is torn by pulling the opening tape. . However, since the opening tape is more expensive than other packaging films and the like, the conventional packaging body using this in a long dimension is expensive and uneconomical. The opening tape used for conventional stick cheese or the like is generally attached over the entire length of the package in the longitudinal direction, and both ends are generally fastened together with the film 1 by the clips 2. Therefore, when the opening tape is peeled off from the packaging tube 5, both ends of the packaging tape 5 attract the clip 2, and the entire packaging tube 5 bends like a bow, so that the contents are deformed.

The present invention solves the above-mentioned conventional problems, and makes it possible to easily tear open the film without providing an opening tape, and furthermore, it is possible to sufficiently increase the welding strength between the films, and to use the sausage. It is an object of the present invention to provide a cylindrical film package (the content is packed in a packaging tube and both ends are clipped) which can sufficiently withstand an increase in the internal pressure in the boil step or the like in the case of (1).

[Specific means for solving the problem]

In the present invention, the cylindrical packaging tube is formed by welding the edges of the film, and the cylindrical packaging tube is filled with the processed food, and both ends in the longitudinal direction of the packaging tube are closed. In the film package, the edges of the film are joined to each other in such a manner that the surfaces that are continuous with the inner surface of the packaging tube are in contact with each other, and this joint portion is welded by a first welding wire. The two film edges extending outwardly from the welding line are fitted together on the outer surface of the packaging tube, and the two film edges and the film forming the packaging tube are welded together by the second welding line. And a cut portion such as a notch is provided at an edge portion of the two films.

(Operation)

In this cylindrical film package, the film edge is cut by a cut portion provided at the film edge, and the cut film edge is peeled off. The edge peels off from the second weld line, and in some cases the two film edges
Can also be peeled off from the welding wire, and the film constituting the packaging tube in this portion can be broken. As described above, the two film edges can exhibit substantially the same function as the opening tape provided separately from the film constituting the packaging tube in the related art. By peeling off the film edges, In this way, the film of the packaging tube can be broken, and a trigger for peeling the film from the contents can be made.

Further, the film edges are welded together by joining them together in a jointed state in which the inner surfaces are joined together by a first welding line, and the film edges extending outwardly from the welding lines are connected to the outer surface of the packaging tube. On the other hand, since the film is welded by the second welding wire, the welding strength of the film is considerably high. Therefore, even when the internal pressure of the packaging tube increases in the boil process or the like and a tension is generated in the film as in the case of sausage, the welded portion can sufficiently withstand this tension.

(Example of the invention)

Hereinafter, embodiments of the present invention will be described with reference to the drawings of FIGS.

FIG. 1 is a front view showing a cylindrical film package according to a first embodiment of the present invention.

In this embodiment, a film 1 such as vinylidene chloride is used.
Are wound in a cylindrical shape to form a packaging tube 10. The edges 1a and 1b of the film 1 constituting the packaging tube 10 are welded by high frequency or ultrasonic waves, and this welding is performed at two welding lines S1 and S2. As shown in FIG. 2, first, the edges 1a and 1b of the film 1 are joined together so that the surfaces continuous with the inner surface of the packaging tube 10 are joined together. Welded by line S1. Further, as shown in FIG.
Film edge 1a projecting outward from first welding line S1
And 1b are bent to either one of them, and are fitted to the outer surface of the packaging tube 10. At the welding line S2, three film edges 1a, 1b and the film 1 constituting the packaging tube 10 come together to form a high-frequency wave. Or it is welded by ultrasonic waves. As shown in FIG. 1, the second welding line S2 has an intermittent portion l (a portion where the second welding is not performed) in the middle thereof. A notch (cut) 3 as a cut portion is formed in this intermittent portion l.
Is provided.

In the case of sausage, processed meat is filled in the cylindrical packaging tube 10, and in the case of stick cheese, the processed cheese is filled in the packaging tube 10. Then, both ends in the longitudinal direction of the packaging tube 10 are squeezed and closed by a metal clip 2 made of aluminum or the like.

FIG. 4 shows an example of an apparatus for forming the packaging tube 10. Reference numeral 11 denotes a stuffer nozzle, which is filled with processed meat or the like.
A film forming member 12 is provided on the outer periphery of the stuffer nozzle 11. The belt-shaped film 1 is supplied through supply rollers 13 and 14 and is formed into a cylindrical shape by the film forming member 12. The molding member 12 is provided with a pair of guide pieces 12a and 12b facing each other with a gap therebetween.
And 12b, the edges 1a and 1b of the film 1 are brought into a closed state. On the lower side of the molded member 12, high-frequency electrodes 15 and 16
Are provided facing each other. Packaging tube molded into a cylindrical shape
After the edges 1a and 1b of the film 10 are mated by the guide pieces 12a and 12b, the edges 1a and 1b of the film are linearly welded by the high-frequency electrodes 15 and 16, and the edges shown in FIG. One weld line S1 is formed. Further below it, other high-frequency electrodes 17 and 18 are provided. One high-frequency electrode
Reference numeral 17 faces the outside of the film 1 to be sent, and the other high-frequency electrode 18 faces the inside of the film 1 to be sent. Film edges 1a and 1b after the first welding wire S1 is formed by the high-frequency electrodes 15 and 16 located above
Is bent to one side so as to be fitted to the outer surface of the packaging tube 10. Then, the film edges 1a and 1b and the film 1 forming the packaging tube are welded together in a straight line by the high-frequency electrodes 17 and 18, and the film 1 shown in FIG.
Is formed. Reference numerals 19 and 20 denote feed rollers, and the feed rollers 19 and 20 continuously feed the packaging tube 10 downward. When the second welding wire S2 is formed, the current supplied to the high-frequency electrode 17 (positive electrode) is temporarily stopped, so that the intermittent portion l (the second welding is performed) shown in FIG. No portion) can be formed. Although omitted in FIG. 4, a guide plate is provided between the high-frequency electrodes 15, 16 and the high-frequency electrodes 17, 18,
If the film edges 1a, 1b after the first welding wire S1 is formed are bent to either one by this guide plate and fall on the outer surface of the film 1, the second edges are formed by the high-frequency electrodes 17 and 18. Is easy to form the welding line S2.

Then, the contents are supplied from a stuffer nozzle 11 to a cylindrical packaging tube 10, and feed rollers 19 and 2 are supplied.
The clip is clamped by the metal clip 2 by a clipping device provided further below the 0, and cut off for each packaging cylinder to form a packaging body as shown in FIG. The notch 3 shown in FIG. 1 can be attached after the package is completely manufactured. However, a device for forming a notch is provided in the device shown in FIG. 4, and the first welding wire S1 is formed. It is also possible to automatically form the notch 3 during the period from when the second welding line S2 is formed.

An example of the operation for peeling the film 1 from the contents in the cylindrical film package shown in FIG. 1 (the contents are filled in the packaging tube 10 and both ends are clipped) will be described first. A finger is inserted into the intermittent portion l of the welding line S2 and pinched, and the film edges 1a and 1b are cut from the notch 3. Then, as shown in FIG. 5, when the film edges 1a and 1b are drawn along the welding lines S1 and S2, the film edges 1a and 1b
Is separated from the film 1 in a tape shape and peeled off. As a result, the film 1 of the packaging tube 10 is broken. More specifically, the portion indicated by A in FIG. 3 is broken by first pulling the film edges 1a and 1b. That is, the packaging tube 10 side is a single film with respect to the two film edges 1a and 1b pulled by a finger. Therefore, by pulling the film edges 1a and 1b, one film 1 on the packaging cylinder side is welded. Break at line S2. Subsequently, by pulling the film edges 1a and 1b, the film edges 1a and 1b are also separated from the film 1 of the packaging cylinder at the welding line S1 indicated by B in FIG. Therefore, as shown in FIG. 5, the film edges 1a and 1b are peeled off in a tape shape. In some cases, not only in part A but also in part B, the film 1 constituting the packaging tube 10 is torn. Therefore, as the film edges 1a and 1b are peeled off in a tape shape, the tearing of the film 1 constituting the packaging tube 10 increases, and the contents are exposed.

The method shown in FIG. 6 is also effective for peeling the film 1 of this package. In this method, first, the film edges 1a and 1b are separated from the notch 3 by a finger. When the portion indicated by D of the film edges 1a and 1b is peeled from the packaging tube 10, the film 1 constituting the packaging tube 10 is torn at least from the portion indicated by A in FIG. 3 as described above. After that, press the end of the package with your finger to expand the contents,
As shown in FIG. 6, the torn portion of the film 1 expands, and the contents are exposed.

FIGS. 5 and 6 show only an example of the method of opening the package shown in FIG. 1, and the package can be opened by any other method. That is,
At the intermittent part 1 of the welding line S2, the film edges 1a, 1
By breaking b, the film 1 of the packaging tube 10 can be easily torn open.

 7 and 8 show a second embodiment of the present invention.

In this embodiment, the first welding wire S2 is provided with the first intermittent portion l.
The notch indicated by reference numeral 3 in the figure is not provided. However, even if the notch 3 is not provided, the work of breaking and opening the film 1 is easy. As an example of the method, the film edges 1a and 1b are pinched by fingers at the intermittent portion 1 of the second welding line S2, and the film edges 1a and 1b are peeled off as shown in FIG. As a result, the film 1 of the packaging tube 10 is broken at the welding line S2, and in some cases, at the welding line S1, and the contents are exposed. Thus, even if the structure is not provided with the notch 3, it is easy to tear open the film 1.

In the embodiment shown in FIGS. 1 to 8, the film edges 1a and 1b constituting the packaging tube 10 are connected to the first welding line S1 and the second welding line S1.
Are welded at two places by the welding wire S2. Second
As shown in the figure, when the film edges 1a and 1b are joined together and welded with only one welding line S1, the strength of the welding line S1 with respect to the force indicated by F is weak. On the other hand, in the above embodiment, as shown in FIG. 3, the second welding wire S2 is provided in addition to the first welding wire S1, so that the welding strength is increased. Therefore, as in the case of sausage, the process is shifted to the boiling process after the completion of the packaging, the internal pressure increases, the film tension increases, and even if a force in the F direction acts on the welded portion, the welded portion can exhibit sufficient strength. Become like That is, when the soles are simply joined together, the force F due to the film tension acts as a force for peeling the film edges 1a and 1b from each other, so that the welding line S1 at the jointed part is easily broken. However, in the case of the present invention in which the second welding line S2 is formed, the film edges 1a and 1b and the film 1 of the packaging tube are closely attached to each other in the second welding line S2 in a state where they are overlapped with each other. Since the welding is performed, the force F acts only in a direction in which the films are to be shifted from each other, and the breaking of the second welding line S2 does not occur only by the force F. Further, the second welding wire S2 and the first
The strength of the welded portion is greatly increased by both the welding wire S1 and the welding wire S1.

If it is necessary to further increase the strength of the welded portion, as shown in FIG. 9, a reinforcing film tape 11 is interposed between the film edges 1a and 1b, and the welding lines S1 and S2 are used. It is also possible to weld the film tape 11 together. As the film tape 11, a conventionally used opening tape can be used as it is. By providing the reinforcing film tape 11 in this manner, the number of films welded at the welding lines S1 and S2 can be increased, and the welding strength by high frequency or the like can be increased. Alternatively, as shown in FIG. 10, a reinforcing film tape 11 is attached to the outside of the film edge 1a, and the film tape 11 is welded at welding lines S1 and S2 to increase the strength of the welded portion. Is possible.

〔The invention's effect〕

As described above, according to the present invention, the edges of the film forming the cylindrical packaging tube are welded to each other in accordance with the jointed state, and the second welding is performed by further aligning the film edge along the film outer surface of the packaging tube. A line is formed, and a cut portion such as a notch is provided at the edge of the film. When the film edge is cut and peeled off at the cut portion, the film can be easily torn open, and the film can be easily peeled from the contents. Also 2
Since two welding lines are formed, the strength of the welded portion can be increased as compared with the case where only the joint welding is performed.
Therefore, even if the internal pressure rises in the boiling step in the case of sausage, the packaging cylinder is not broken from the welded portion.

[Brief description of the drawings]

FIG. 1 is a front view showing a cylindrical film package according to a first embodiment of the present invention, FIGS. 2 and 3 are enlarged sectional views showing a welded portion by a welding wire, and FIG. 4 is a cylindrical film package. FIGS. 5 and 6 are front views showing an example of a method for opening a cylindrical film package according to the first embodiment, and FIG. 7 is a front view showing an example of a method for opening the cylindrical film package according to the second embodiment of the present invention. FIG. 8 is a partial front view showing a cylindrical film package, FIG. 8 is a partial front view showing an example of an opening method of the cylindrical film package according to the second embodiment, and FIGS. 9 and 10 are each according to another embodiment. FIG. 11 is an enlarged cross-sectional view of a cylindrical film package, FIG. 11 is a front view showing a conventional cylindrical film package, and FIG. 12 is a cross-sectional view of the conventional cylindrical film package. DESCRIPTION OF SYMBOLS 1 ... Film, 1a, 1b ... Film edge, 2 ... Clip, 3 ... Notch, 10 ... Cylindrical packaging, S1 ... 1st
.., A second welding line, l... An intermittent portion of the second welding line.

Claims (1)

(57) [Claims] 1. A cylindrical packaging tube is formed by welding edges of a film, and processed food is filled in the cylindrical packaging tube, and both ends in the longitudinal direction of the packaging tube are closed. In the film package, the edges of the film are joined together so that surfaces continuous with the inner surface of the packaging tube are in contact with each other, and this joint portion is welded by a first welding wire. The two film edges extending outwardly from one welding line are both fitted to the outer surface of the packaging tube, and the two film edges and the film forming the packaging tube are joined together by the second welding line. A cylindrical film package filled with processed food, wherein the processed film is welded and a cut portion is provided at an edge of two films.