JPS6223713Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to a bag for vacuum packaging, and more specifically to a bag for vacuum packaging made of thermoplastic synthetic resin film. The series of operations such as insertion into the bag, subsequent decompression operation, evacuation of the decompression device upon completion of decompression, and sealing of the bag opening can be performed easily, smoothly and quickly even by an inexperienced person. We provide packaging bags.

Various products, including foods, are packaged under reduced pressure in bags made of thermoplastic synthetic resin film (hereinafter simply referred to as plastic film). Special equipment is used for the bag and the sealing tool to seal the bag, and the reality is that ordinary households do not have these equipment and are unable to carry out vacuum packaging. .

Food products, especially cooked food products, may contain a large amount of water, so it is not enough to simply store the food products in a bag and degas the inside of the bag. Although it is difficult to achieve this goal, if you store items such as bedding items such as futons and blankets, or clothing items such as clothes and Japanese clothes in a bag and degas the inside of this bag, As deaeration occurs, the volume of the product decreases significantly, making it easy to pack the product under reduced pressure.The vacuum cleaner, which is currently available in most homes, can be used to reduce the pressure. We have found that this can be done easily, but for the packaging bags used at this time, once a certain level of depressurization has been achieved, the device for depressurizing is quickly removed from the bag, and the bag is further removed. It is necessary for the bag to be able to quickly seal the mouth of the bag to prevent the reduced pressure inside the bag from returning to normal pressure. By doing so, various items could be easily packaged under reduced pressure even at home, so after careful consideration and various experiments, we found that one opening end of the bag body made of plastic film was placed in one place. This purpose can often be achieved by dividing the air suction pipe into an inlet/outlet by dividing it with a heat-sealed part, and by using a vacuum packaging bag with double-sided adhesive tape with release paper attached to the air suction pipe inlet/outlet. I can do it,
The present invention was obtained.

An example of the implementation of the present invention will now be described with reference to the accompanying drawings.

First, the bag body used in this invention has a first
As shown in the figure, a cylindrical plastic film 1 is pressed so that both ends are opened, one end is sealed to form the bottom, and the other end becomes the opening. The plastic film 1 is folded in half and its side edges are sealed to form a bag, or as shown in Fig. 3, two pieces of plastic film 1 and 1' are overlapped and the side edges are sealed. It is preferably used regardless of how the bag is formed, such as one made into a bag.
For convenience of explanation, first, a bag made of cylindrical plastic film 1 will be explained with reference to FIGS. 4 and 5. First, in the bag shown in FIG. 4, both ends of the bag body 2 are open 3, and one open end 3 is heat-sealed 4 to form the bottom 5. The other open end 3 is configured as follows. That is, the opening end 3 has an air suction pipe entrance/exit 7 defined by a heat-sealed part 6 integrated by heat-sealing. An air suction tube 8 for sucking and deaerating air is inserted, and a double-sided adhesive tape 9 with release paper is inserted into this entrance/exit 7.
is pasted.

Further, the opening end 3 other than the air suction tube entrance/exit 7 defined by the heat-sealed part 6 is the bag body 2.
This is the part that should serve as the entrance and exit for items to be stored inside, and a double-sided adhesive tape 9 with release paper is pasted here.

Therefore, if you want to store, for example, a futon in the bag body 2 and package it under reduced pressure, you can do it as follows. That is, open the part of the open end 3 of the bag main body 2 that is not the air suction tube entrance/exit 7, which is partitioned by the heat-sealed part 6, and insert the futon (not shown) from there.
When the bag is inserted, the release paper of the double-sided adhesive tape 9 is removed from this area and the bag body 2 is strongly pressed, thereby sealing this area with the adhesive tape. Next, the suction tube 8 is inserted through the suction tube entrance/exit 7, and the air inside is suctioned and degassed. When the degassing is completed, the air suction tube 8 is pulled out, and at the same time, the release paper of the double-sided adhesive tape 9 in this area is peeled off. By pressing firmly on the bag body, this area is sealed with adhesive tape.

In this way, the air inside the bag body 2 is degassed, the periphery of the bag body 2 is completely sealed, the deaerated state is completely maintained, and the bag functions as a vacuum packaging bag. In the case of the bag main body shown in FIG. 4, the other open end 3 has been described as being heat-sealed 4, but this is not limited to this, and this part can be bonded with double-sided adhesive tape with release paper, etc. There is no problem in using other adhesive means or sealing means, but it goes without saying that the sealing means must not allow air circulation.

The bag main body 2 shown in FIG. 5 has a double-sided adhesive tape 9 with release paper attached to one opening end 3, and a double-sided adhesive tape with release paper attached to the air suction pipe entrance 7 of the other open end 3. 9 is attached, but the other parts are heat-sealed 4, and in the case of this bag body, items are accommodated from one open end 3'. Therefore, once the article is accommodated from one opening end 3', the release paper of the double-sided adhesive tape is peeled off, this area is sealed by strong pressure, and then the article is inserted from the air suction tube entrance 7 through the air suction tube. Deaeration and subsequent sealing are the same as described above.

This bag has the advantage that the entire opening of the bag can be used for loading and unloading items.
In the case of this bag, the other opening end 3 other than the air suction pipe entrance 7 is heat-sealed 4, but as mentioned above, this part is covered with a double-sided adhesive tape with release paper, etc. There is no problem even if it is an adhesive means or a sealing means. Moreover, what is shown in FIG. 6 and FIG. 7 is an example in which the bag body 2 is formed from two pieces of plastic film, but in this case, in order to be used as a bag, The three sides, excluding the other open end 3 where the air suction pipe entrance/exit 7 is to be formed, must be sealed by some means, and in FIG. In FIG. 7, it is shown sealed by heat sealing 4, and the air suction pipe inlet/outlet 7 is sealed by heat sealing part 6 at the other open end 3. The adhesion of the double-sided adhesive tape 9 with release paper to this section and the application of the double-sided adhesive tape 9 with release paper to other parts are the same as described above.

In the present invention, the plastic film used for the bag body can be, for example, polyethylene film, polypropylene film, soft vinyl chloride film, or other thermoplastic synthetic resin films. This is done by laminating aluminum foil, aluminum vapor deposited film, ethylene vinyl alcohol, polyvinyl alcohol, vinylidene chloride, etc. film with the above-mentioned plastic film, or when a higher degree of oxygen barrier property is required, desorption is performed. It is preferable to use an oxygen agent together.

As explained in detail above, in the present invention, one open end of the bag body is divided by one heat-sealed part to serve as an air suction pipe entrance/exit, and this air suction pipe entrance/exit is provided with release paper. Since it is a vacuum packaging bag with double-sided adhesive tape attached, after items are placed in the bag, only a small part of the air suction pipe entrance and exit is open, and most of the other parts are sealed. Therefore, the suction and degassing effect of the air suction tube is extremely good, and even if the suction degassing is completed and the air suction tube is pulled out, the entrance and exit of the air suction tube is only a small part, so outside air will still flow in. Needless to say, it takes only a very short amount of time to peel off the release paper and press it, so it can be done very easily and while maintaining a reduced pressure state, especially if you keep it at home as an air suction pipe This is a practically useful idea, as vacuum cleaners can be used effectively, making it possible to carry out vacuum packaging at home.

[Brief explanation of the drawing]

The attached drawings show an example of the implementation of the present invention.
1 to 3 are perspective views showing the shape of the material of the bag body used in the present invention, and FIGS. 4 and 5 are plan views showing the case in which the material shown in FIG. 1 is used, respectively.
FIGS. 6 and 7 are plan views respectively showing the case where the one shown in FIG. 3 is used. 2...Bag body, 3...Open end, 6...Heat-sealed portion, 7...Air suction tube entrance/exit, 9...Double-sided adhesive tape with release paper.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) One open end of the bag body made of thermoplastic synthetic resin film is divided by one heat-sealed part to serve as an inlet and outlet of an air suction pipe, and this air suction pipe A vacuum packaging bag characterized by double-sided adhesive tape with release paper attached to the entrance and exit. (2) The vacuum packaging bag according to claim 1, wherein the bag body is constructed by folding a single thermoplastic synthetic resin film in half. (3) The vacuum packaging bag according to claim 1, wherein the bag body is constructed by overlapping two thermoplastic synthetic resin films. (4) The vacuum packaging bag according to claim 1, wherein the bag body is made of a cylindrical thermoplastic synthetic resin film.