JPS6312471A - Easy-open cylindrical sealed package packaged by vinylidene chloride group resin film - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a technique for improving the interpackability of a sealed package in which solid contents are packaged in a cylindrical shape with a hnylidene chloride resin film.

[Conventional technology]

A tube containing solid contents such as processed meat foods such as bacteria, fish meat, processed dairy products such as cheese and nota, and confectionery such as ramie and jelly, wrapped in vinylidene chloride resin film. Tit-shaped sealed packages are widely used.

This product can be made into a flat long film by using a commercially available automatic filling and packaging machine as ADP (trade name, manufactured by Asahi Kasei 01), for example, by the method disclosed in Japanese Patent Publication No. 55-34044. It is continuously and automatically made into a cylindrical (rope-shaped) sealed package filled with contents. During the making process, the side edges of the flat long films are overlapped and fused together. By sealing it into a cylindrical film, a "back seal part extending along the sleeve" is formed, and after filling the cylindrical film with the contents, the cylindrical film is squeezed at intervals of a predetermined length of the product. By ligating the tube with a metal ring and making it into an individual package, a ``ligated section with metal rings at both ends of the cylinder'' is formed.

On the other hand, one of the disadvantages of this package is that it is extremely difficult to tear it open without using a knife. Examples of technologies aimed at making packaging of the same type easier to store include:
Some of these are disclosed in Japanese Utility Model Publication No. 8080 and Japanese Utility Model Publication No. 49-19021. In short, a strip-like material stronger than the outer skin film is fused to a part of the body of the cylindrical body or a part of the sealing part, and by pulling this strip-like material, a part of the outer skin is torn off. This corresponds to a proposal to use the part as a cutting edge for easy interior design.

However, this type of proposal has only been put to practical use in some Wiener sausage-type packages and some small-diameter cheese packages, and has not been widely used.

The reason for this is that the probability that a cut will be formed is very low, and therefore it is difficult to call it easy to interlock, but on the other hand, with the current technology, it is difficult to fuse and apply a highly accurate band to the cut. This is because economic efficiency is not satisfied.

Furthermore, this package is highly required to have gas barrier properties and to maintain the contents in a hermetically sealed manner. This has limited the cut-forming means that can be adopted and has made it difficult to provide an easy-to-install function.

[Problem that the invention seeks to solve]

The present invention is based on a technical idea different from the above-mentioned method of fusing a band-like material for forming a cut to a packaging body, and is capable of forming a cut for tearing with high accuracy, and is easy to manufacture and process. To provide a new cylindrical package having five opening parts.

[Means for solving problems]

Thus, in the present invention, a cylindrical solid content is sealed with a vinylidene chloride resin film having a traditional sealing part extending along the axis of the cylinder and ligatures converging with metal rings at both ends of the cylinder. In the cylindrical sealed package being packaged, 1.5 mm to 3III from the side edge of the film tab that protrudes outside the package in a band shape via the old-fashioned seal line.
A hole or a tangential cut of a minute area penetrating the film layer is formed approximately in the center of the lug at an interval of 1, with a directionality that crosses the long axis of the lug and that extends along the length of the lug. The present invention relates to an easy-to-pack cylindrical sealed package packaged with a vinylidene chloride resin film, characterized in that a large number of vinylidene chloride resin films are arranged at intervals in the axial direction.

Next, the content of the present invention will be explained in detail using embodiments of the drawings.

Figure 1 (a))) (c) is a conceptual diagram showing an example of the cylindrical sealed package of the present invention. Figure 1 (a) is an overall perspective view, and Figure 1 (a) is a x-x' of (a). Enlarged cross-sectional perspective view cut along the line, Figure 1 c)
is an enlarged view of the ear piece part (○ mark part) of A).

In Figure 1 a), vinylidene chloride resin film 2
The film 2 densely covers the entire outer surface of the cylindrical solid content 1, and for this reason, the film 2 has a traditional seal portion 3 extending along the cylinder axis, and furthermore, the film 2 has a seal portion 3 extending along the cylinder axis, and furthermore, the film 2 has a sealing portion 3 extending along the cylinder axis. The focused film is highly sealed by a ligated metal ring 4.4''.

Therefore, this package is hardly exposed to outside air due to the excellent gas barrier properties of the film and the above-mentioned sealed packaging.

In the enlarged view of the Folklore seal part 3 in Figure 1 (opening), the two overlapping films, in which both side edges of the film 2 rolled into a cylindrical shape are overlapped, are fused together by the seal line 3, and one The side edge 5 of the package enters the inside of the package, while the other side edge 6 protrudes outside the package via the seal line 3 in a strip shape to form an ear piece 6.

This lug piece 6 corresponds to the strip-shaped film sandwiched between the side edge 7 of the film at one end and the seal line 3 at the other end in FIG. A feature of the present invention is that the opening 8 is utilized for interior decoration.

The specific features of the present invention are as follows: (al cut 8 is provided at approximately the center of ear piece 6 with an interval of 1.51 to 3 III m from side edge 7;
The cut 8 is formed by a hole with a minute area or a cutting line that penetrates the film layer. Item 1 (al, (bl,
(It is in the combination of cl.

To summarize the reason why this is necessary, it is desirable that the device for easy packaging of the present invention be applied when the packaging is still a flat film, or at least at a stage before it becomes a packaging body. . On the other hand, the easy-to-pack function is used when the package contents are put into practical use. Therefore, the ease of packing that is the object of the present invention is one that can sufficiently withstand the deformation stress that occurs in the package from the stage of packaging to the stage of practical use, including during transportation. The goal is to find a point of harmony to satisfy the seemingly contradictory requirement that the bag is easily tearable. Specifically, for example, the above fat is the basis for achieving a balance between packaging workability during bag making and packaging and ease of tearing when the tabs 6 are pinched by hand and torn. , the distance A from the side edge 7 [opening in Figure 1] is 1.5
If the distance is less than mm, the film is likely to break during packaging work, and if the distance is wider than 311II11, it will be difficult to tear the ear pieces 6 as they were initially. The preferred spacing dimension is in the range of 2±0.3 mm.

In addition, the cut 8 maintains the sealing performance when the package is made.In order to prevent the cut 8 from crossing the seal line 3 or entering the package side beyond it, the seal is placed approximately in the center of the lug 6. It is arranged with a space between it and the line 3.

Next, the importance of the above (bl) is related to the above (C1), and the mechanical strength of the film of the ear piece 6 is maintained within the necessary limit when viewed as a whole, but it is Now, it's meant to be in a weakened state.

FIG. 2A) is an enlarged view (20x magnification) showing an example of the structure of the cut referred to in the present invention. According to Figure 2 A), the cut 8 is formed by one, preferably a plurality of holes having a minute area [Figure A)] or cutting lines [mountain figure] having a minute area, arranged in a row at intervals. 6, a large number of them are shown arranged at intervals in the direction transverse to the long axis of 6 and at intervals in the long axis direction. Moreover, these holes or cut lines all need to pass through the film layer.

This necessity for penetration is due to the fact that it is necessary to penetrate the film itself through holes or cut lines that are so small that it is meaningless to calculate their area correctly. In addition, the small area of the holes and cut lines, in combination with the intervals placed there, make it possible to maintain the strength of the film as a whole.

These holes and cut lines have an individual area of 0°003
mm” to 0.05 m♂, the area of the break in the strip is:
The range is 0.005 mm'' to 0.2 m, and the interval B is selected from a combination of the range of 0.5 mm to 1.2 mm (usually 1 mm target).

Further, as the cut, a range of 2 to 4 mm in total length C is selected. This is because the medium dimension of the tab 6 in the present invention is in the range of 4 mm to 12 mm, generally 6 mm to 10 mm, based on the necessary size for the operation of pinching and tearing, and the economic dimension in terms of the proportion of the tab in the entire packaging material. is selected as the target value, but for the ear piece itself, as shown in +al above, if the initial tearing of the side edge of the ear piece and the guidance by the cut are possible, then the rest will be able to be pulled, which is a characteristic of vinylidene chloride film. A long cut is not necessary, as the tear is torn by ease. In fact, long cuts may cause the film to break.

The cut referred to in the present invention provided in this way can be freely torn off from any position on the ear piece.

FIG. 3 is a cross-sectional perspective view showing a backing structure that is advantageous for the easy interior decoration of the present invention.

In this FIG. 3, the edge piece 6 of the film is
．． Both 6' are exposed outside the package. Therefore, by making the cut 8 referred to in the present invention on the pieces 6.6 of both ears, it is possible to overlap the pieces 6.6 of both ears, pinch them, and tear them while they are stacked, and the tearing force increases. This results in a phenomenon in which it is easy to propagate beyond the seal line and into the package.

〔Example〕

Next, examples will be shown.

Example/Comparative Example 1 A vinylidene chloride resin film with a thickness of 96 mm was used, and a cut similar to that shown in Figure 2 was made at a distance of 2 mm from the bm portion of 1 ull of the film. The length of the cut is 0.5mm, and the interval between the -stripes is 0°5.
mm, and the distance between each strip in the longitudinal direction was 1 mm.

The area of the cut in each strip at this time is 0.01 mm2 ~ 0.0
There was a 15 mm”T. This long film was No. 1.
And so.

A long film in which exactly the same cuts were made from one end of the film without leaving any space between them was designated as No. 2. Finally, a long film without any cuts was designated as No. 3 and evaluated as follows.

ADP C (trade name: manufactured by Asahi Kasei Corporation) was used to fill the sample with fish sausage of a normal composition. The shape of the sausage is the first
It is similar to the one shown in Figure A), and the folding diameter of the film is 38.
Make a bag so that the outer edge is 10 mm,
0g/piece of sausage was made. As a result, the film No. 2 broke during filling due to the tension of 111 kg, and sausages could not be continuously filled.

Fifty sausages each obtained using films No.] and No.3 were subjected to retort sterilization treatment in a conventional manner. There were no broken bags in the retort. After retort sterilization, the outer ear of the sausage had a length of about 8 mm. When I grabbed this ear piece with both hands and tore it apart, no.
The sausage using film No. 3 could not be torn at all, whereas No.

In the case of using the film No. 1, the ear piece was easily torn, the sealed portion was cut, and the contents could be easily released.

〔Effect of the invention〕

By having the above-mentioned configuration, the present invention enables a strong strip to be fused to the package during bag manufacturing, as disclosed in, for example, Japanese Patent Publication No. 51-8080.
This is a useful and convenient invention that succeeds in providing ease of installation using an idea completely different from methods that are difficult to implement. The target packaging has traditionally been difficult to tear without the use of a knife.
This invention has an extremely important role to play.

[Brief explanation of drawings]

Figure 1 A))) C) is a conceptual diagram illustrating the cylindrical sealed package of the present invention, Figure 2 is a diagram illustrating the contents of the cuts referred to in the present invention, and Figure 3 is a conceptual diagram illustrating the cylindrical sealed package of the present invention. It is a conceptual diagram of a desirable example of a package. 1... Contents 2... Vinylidene chloride resin film 3...
・Seal line 4.4° ・・Metal ring (ligature part) 6・・・Ear piece B・・・Slit

Claims (1)

[Claims] (1) A cylindrical solid content is hermetically packaged with a vinylidene chloride resin film that has a back seal extending along the axis of the cylinder and ligatures converged with metal rings at both ends of the cylinder. In a cylindrical sealed package, a film tab protruding out of the package in a strip shape through the back seal line is placed approximately at the center of the tab at a distance of 1.5 mm to 3 mm from the side edge of the tab. , a large number of holes or cutting lines of minute area penetrating the film layer are arranged in a direction that crosses the long axis of the lug, and are spaced apart in the long axis direction of the lug. An easy-to-open cylindrical sealed package packaged with a vinylidene chloride resin film, characterized by: