JPH03124575A - Packaging body and its packaging device - Google Patents

Abstract

PURPOSE:To make unpacking easy by a method wherein a tape material is inserted between an upper and a lower film at an unpacking side and the adhesion between the tape material and the upper film and that between the tape material and the lower film is made different from each other. CONSTITUTION:An easy peel layer is formed on one side (underside) of a tape material 8 by the application of a coating resin thereto, so that adhesion is lowered when heat sealing is effected. A tab part 9 is formed by one end of the tape material 8 defined by a concave notch part 2b and a slit 4a, and a part of a upper film 4 bonded thereto. The width w1 of the tape material 8 is made larger than seal width w2. To unpack a package 1, the tab part 9 is gripped and pulled in the arranging direction of the tape material 8, whereby the upper film 4 firmly attached to the tape material 8, together therewith, is peeled off from a lower film 2 for unpacking and the upper film 4 is cut off straight along the inner edge of the tape material 8.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a package and a packaging device for the same.

(Prior art) There are many different types of packages, such as articles and confectionery in which volatile chemicals such as patches are impregnated into packages with 30,000 horizontal seals, 4-sided seals, etc. There are products on the market that contain the following as a packaged item. The amount of these items to be packaged is usually stored in one package in an amount larger than the amount for one use, and it is common to take out the items from the package and use them in multiple batches. Therefore,
After opening the package and taking out the amount to be used, care must be taken to prevent the packaged material from drying out and deteriorating the efficacy of the drug and the quality of the food during subsequent use at a later date. Therefore, the opening part should be bent or a zipper that can be opened and closed should be placed on the inner circumference of the opening of the package in advance.
- When storing a packaged item after opening it, the zipper may be closed and the zipper may be opened each time the package is used.

Separately, as a packaging body for packaging processed foods, meatballs, sausages, and similar foods, a lower film with a concave center is filled with the item to be packaged, and another layer is placed on top of the lower film. There are also so-called deep-draw packages that are covered with an upper film and sealed around the periphery.

In any case, the various packages mentioned above must be opened by cutting one side around the package in order to take out the packaged item, but the overlapping part of the film is integrated into a seal around the package and body. It was difficult to tear, and a cutting tool such as a pair of scissors had to be used to open the package. Therefore, in order to facilitate this opening operation, conventionally, a score line or a V-shaped notch has been formed in a part of the periphery, and the film has been opened from that part by cutting.

(Problem to be Solved by the Invention) However, in the conventional packaging body described above, only a V-shaped notch is formed at one end of the periphery, and the other parts are still tightly sealed. Because the film is not cut straight, the unsealed part (
The edges) become pulsating, which not only looks bad, but
In some cases, it may not be possible to cut halfway, resulting in poor usability.

This invention has been made in view of the above-mentioned background, and its first objective is to provide a package that can be easily opened. A second object is to provide a packaging device that can automatically manufacture the above package.

(Means for Solving the Problems) In order to achieve the above-mentioned object, in the package according to the present invention, the peripheries of the upper film and the lower film are sealed, and the packaged object is held inside. In the package, the package has one side around the circumference that is an unsealed part, and a tape material is inserted between the upper and lower films of one piece of the package, and the tape material, the upper film, and The adhesive strength between the tape material and the lower film was varied, and a notch was formed on the inner edge of at least one end of the tape material to form a grip portion.

Furthermore, the packaging apparatus of the present invention includes a conveying means for overlapping strip-shaped films and conveying the packaged items therein, a means for sealing a predetermined position of the film during the conveyance, and a means for sealing a predetermined position of the film during the conveyance; In a packaging apparatus having a means for cutting in the horizontal direction and the longitudinal direction, a supply means for inserting tape materials having different adhesive strengths on both sides at predetermined positions between the overlapping parts of the overlapping films disposed on the conveying means. and a notch forming means disposed in front of the supplying means in the traveling direction, the notch forming means forming a notch in the side edge of the tape material near the lateral sealing area of the film. And so.

(Function) First, grasp the grip part of the package and pull it along the direction in which the tape material is arranged. Then, the tape material is relatively easily peeled off from the film with low adhesive strength. This opens the package.

Also, at this time, since the tape material and the other film are strongly integrated, by pulling the 0 part of the knob, the other film will be cut straight along the inner edge of the tape material. .

(Embodiments) Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.

1 to 4 show an example of a package 1 according to the present invention. As shown in the figure, the packaged object 3 is stored in the storage recess 2a of the lower film 2, which is generally rectangular in plan and has a storage recess 2a formed therein. Covered with film 4. In this example, since the lower film 2 and the upper film 4 are formed of separate members, the four sides of both films 2 and 4 are hermetically sealed.

Furthermore, in this example, in order to make the package 1 resealable, an opening/closing fastener 5 is inserted inside the package 1 at a predetermined distance on one side around the package 1.

This opening/closing fastener 5 is composed of a male fastener 5a and a female fastener 5b. As shown in FIG. 3, the male fastener 5a is formed integrally with a band-shaped part 6 made of thermoplastic synthetic resin such as polyethylene or polypropylene, standing upright on the center line of this band-shaped part 6, and its upper part is It is formed from a first articulating tool 7a consisting of a wide convex projection. Furthermore, the female type fastener 5b has a band-like part 6 similar to the male-type fastener 5a, and a second articulating tool 7b that is integrally formed upright on the center line of this band-like part 6 and has a concave groove in its center. It is formed from. And these first. When the second articulating tools 7a and 7b engage with each other, the opening/closing fastener 5 is closed.

A female type fastener 5b is attached to the lower film 2, and a male type fastener 5a is attached to the upper film 4, and the side to which the opening/closing fastener 5 is attached forms the opening portion.

Furthermore, a tape material 8 is inserted and arranged at the edge of the side that will be the unsealed part. In this embodiment, the tape material 8 is made of the same material as the upper and lower films 2 and 4 (of course, other materials may be used). One surface (lower side in this example) of the tape material 8 is coated with a coating resin to provide an easy-peel layer, which reduces adhesive strength when heat-sealed.

In addition, a concave notch 2b is formed at both ends of the lower film 2 where the tape material 8 is located, and the inside of the tape material 8 is formed at both ends of the upper film 4 facing the concave notch 2b. A cutout line 4a is formed along the edge. One end of the tape material 8 defined by the concave notch 2b and the notch line 4a and the portion of the upper film 4 adhered thereto constitute a grip portion 9.

Furthermore, as shown in FIG. 2, the width w1 of the tape material 8 is
It is set wider than the seal width w2.

To open the package 1 constructed in this way,
First, grasp the grip portion 9 and pull it along the direction in which the tape material 8 is arranged. Then, as described above, since the adhesive strength of the lower side of the tape material 8 is reduced by the coating resin, the tape material 8 is relatively easily peeled off from the lower film 2. That is, the upper film 4, which is strongly adhered to the tape material 8, is peeled off from the lower film 2 together with the tape material 8, and the package is opened.

Moreover, at this time, since the tape material 8 and the upper film 4 are strongly integrated as described above, the upper film 4
The strength of the film surface is high at the part where the tape material 8 is located, and as a result, by pulling the tab 9, the upper film 4 is cut straight along the inner edge of the tape material 8 (the part where the tape material 8 is located) is cut. (See Figure 4).

Next, by opening and closing the opening/closing fastener 5, the package can be opened and closed.

In addition, since only the upper film 4 is cut in a straight line in this way, the lower film 2 remains in an outwardly protruding state after cutting, so that the unsealed part is easily visible from the outside and there are many parts to grip, so that it can be removed later. This makes it easier to open and close the opening/closing fastener 5 and to take out the packaged item 3.

Next, a packaging device for automatically manufacturing the package 1 will be described.

As shown in FIG. 5, a continuous strip-shaped lower film 2 in which four storage parts 2a are formed is continuously pulled out from the original film 11, and has clamping and conveying claws 12 at predetermined intervals at both ends of the packaging device. It is designed to be transported forward by a transport device 13. That is, this conveying device 13 includes an endless chain 1 that is installed between a driving sprocket 14 and a driven sprocket 15 that are arranged near the front and rear ends of the packaging device.
A large number of clamping and conveying claws 12 are attached to 6 at predetermined intervals.

Container forming boxes 17 are arranged above and below near the lower film loading side of the transport device 13, and here the lower film 2 is heated and evacuated or compressed to form storage recesses 2a at predetermined intervals. Ru. In this example, two storage recesses 2a, 2a are formed horizontally. Further, although not shown, a means for supplying the object to be packaged 3 into the storage recess 2a is arranged in front of the container forming box 17 in the direction of movement.

Furthermore, an original film 18 on which the upper film 4 constituting the lid material is wound is arranged above the center of the conveyance device 13, and the upper film 4 continuously pulled out from the original film 18 is placed on the lower side. After the object 3 to be packaged is stored in the storage recess 2a of the film 2, the upper part of the object 3 is covered.

A guide device 19 for inserting an opening/closing fan and a snapper 5 between the lower and upper films 2 and 4 is disposed at the joint between the lower and upper films 2 and 4.

Although not shown, the guide device 19 is housed in a container disposed below the conveying device 13 with the male and female fasteners 5a and 5b engaged with each other, and is continuously pulled out from there. It is now possible to The pulled out male and female fasteners 5a and 5b are partially released in the middle of being pulled out, and guided to a predetermined position on the film by a rotary sealer 20, where they are heat-sealed.

Then, both the fasteners 5a and 5b move together with the upper and lower films 4 and 2 guided respectively, and when the upper and lower films 4 and 2 are overlapped, the male and female fasteners 5a and 5b also engage. will be done. At this time, two opening/closing fasteners 5 are arranged in parallel at the center of both films 2 and 4 in the traveling direction.

On the other hand, a sealing device 21 is disposed further forward in the traveling direction of the joint portion, and is configured to heat-seal the contact portions (vertical and horizontal directions) between the lower film 2 and the upper film 4. . In front of the sealing device 21, a horizontal cutter device 22 for cutting the lower and upper films 2, 4 in the horizontal direction is arranged, and furthermore, on the discharge end side of the conveying device 13, a pair of upper and lower rotary cutters is arranged. A vertical cutter device 23 is provided for cutting the lower and upper films 2.4 in the same direction as the traveling direction.

Here, in the present invention, first, the punching device 30 for forming the concave cutout portion 2b is disposed in front of the container forming box 17 on the conveying device 13 in the film traveling direction. A predetermined concave notch 2b is punched out at the central portion in the direction.

In this example, the notches for the four adjacent storage parts 2a (packaging bodies) are formed by punching at a -degree.

Further, a supply device 32 for the tape material 8 is disposed adjacent to the guide device 19 for the opening/closing fastener 5. That is, this supply device 32 continuously pulls out the tape material 8 from the original roll on which the tape material 8 is wound, and
The drawer 5 is guided to a predetermined position between the two films 2 and 4 via a pull-out roller 35. That is, the drawn-out tape material 8 is sealed with both films 2 by the sealing device 21.
It is designed to be sealed at °4. Then, the inserted tape material 8 will be located on a large number of concave cutouts 2b.

Furthermore, a notch line forming device 36 is disposed between the sealing device 21 and the horizontal cutter device 22.

This notch line forming device 36 has one set of flat cutting blades (not shown) that move up and down. The cutout line 4a is formed by vertically penetrating the center portion of both side edges of the concave cutout portion 2b formed by the punching device 30.

In the above-mentioned embodiments, a so-called deep-drawn package and a packaging device for manufacturing the package have been described, but the present invention is not limited to this, and can be applied to various products such as three-sided and four-sided seals. Furthermore, the opening/closing fastener described above does not necessarily need to be provided.

Moreover, in the above embodiment, the upper side that constitutes the package.

Although the structure is made using two lower films, the present invention is not limited to this, and the present invention may be performed by cutting one film in the middle of drawing it out, separating the two films, and then polymerizing the two films, or by such cutting, etc. Instead, it may be formed into a substantially U-shape (one film constitutes the upper and lower films) and the three released sides may be sealed.

Furthermore, regarding the relationship between the adhesive strength between the tape material and both films, contrary to the above, it is also possible to strongly adhere to the lower film, and instead of the notch line, a V-shaped or other cut portion is formed. It is also possible to make various modifications.

Furthermore, although the easy-peel layer provided to change the adhesive strength of the tape material 8 was formed by coating in the above embodiment, the present invention is not limited to this, and for example, two types of film materials with different adhesive strengths are pasted together. In addition to forming a tape material together, various other materials can be used.

(Effects of the Invention) As described above, the package according to the present invention can be easily peeled off from the film bonded to the weakly adhesive surface of the tape material by simply grasping the tab and pulling it. At the same time, the film on the opposite side can be easily cut in a substantially straight line along the inner edge of the tape material.

Moreover, with the packaging apparatus according to the present invention, the above-mentioned package can be automatically manufactured.

[Brief explanation of drawings]

Fig. 1 is an exploded perspective view showing an embodiment of the package according to the present invention, Fig. 2 is a plan view thereof, Fig. 3 is a view showing an opening/closing fastener, and Fig. 4 is a perspective view showing the package in an unsealed state. Figure, 5th
The figure is a side view showing one embodiment of the packaging device according to the present invention, and FIG. 6 is a plan view showing a film etc. moving on the packaging device. 1... Packaging body 2... Lower film 4.
... Upper film 8 ... Tape material 9 ... Knob section 30 ... Punching device 32 ... Supply device 36
...Notch line forming device

Claims (2)

[Claims] (1) In a package that seals the peripheries of an upper film and a lower film and holds an item to be packaged therein, the package has one side around the periphery that is an unsealed part; A tape material is inserted between the upper and lower films of the piece, and the adhesive strength between the tape material and the upper film and between the tape material and the lower film is made different, and at least A packaging body characterized by forming a notch on the inner edge of one end to serve as a knob part. (2) Conveying means for overlapping strip-shaped films and conveying the packaged items therein, means for sealing a predetermined position of the film during the conveyance, and means for lateral and longitudinal directions of the film. A packaging apparatus having a means for cutting a film, a supply means for inserting a tape material having different adhesion strengths on both sides at a predetermined position between the overlapping parts of the overlapping films disposed on the conveyance means; and a cut-forming means disposed at the front in the traveling direction of the film, and the cut-forming means forms a cut in the side edge of the tape material near the lateral sealing area of the film. packaging equipment.