JPH01139346A - Article receiving method - Google Patents

Abstract

PURPOSE:To permit a complete closing of an article receiving opening of a packer, even if it is deformed, by heat sealing fasteners thereof using an iron, etc., after joining such fasteners. CONSTITUTION:A futon (A) is inserted into a packer 1 from an article receiving opening 2 so as to be enclosed entirely therein. Fasteners 4 and 5 are then pressed together from the outer peripheral surfaces of the top portion 3a and the bottom portion 3b of a base film 3, so that the two edges of the article receiving opening 2 are fastened by joining the fasteners 4 and 5 from one end thereof to the other, thereby closing said opening 2. By using an iron or a simple scissors-like heat sealer, a heat and pressure is thereafter applied to the surface of the packer 1 at the portion of the outer peripheral surfaces of the base film 3 matching with the fasteners 4 and 5 thus joined for fastening the opening edges, whereby the fasteners 4 and 5 are heat sealed together for forming a sealed layer and hence sealing the article receiving opening 2.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention mainly relates to a method for storing so-called air-fattening articles such as futons, blankets, towels, and cotton.

[Conventional technology]

Traditionally, bedding such as futons and blankets that are out of season are stored in a closet, etc., or they are stored in a storage bag with a string attached to it to close the storage opening. It was a target. However, for items such as the futons and blankets mentioned above, which are bulky with air, that is, bulky items with a high air inclusion rate and therefore a large volume per unit weight, a large space must be secured for storage. There is a problem in that it imposes space constraints on the storage and storage of other items.

On the other hand, manufacturers of the above-mentioned products must also secure warehouses with considerably large space to store the products, and because they are bulky, loading efficiency during transport by truck etc. is also poor. This has led to problems such as an increase in the cost of the product.

In order to solve the above-mentioned problems, prior to filing this application, the applicant of the present application accommodated air-containing articles through the article-accommodating opening of a package based on a heat-resistant and air-impermeable sheet. A method has been proposed in which the air-containing article is compressed and stored by welding and sealing a heat-sealing layer formed on the inner circumferential surface of the mouth, then evacuating the air present in the sealed space of the package.

[Problem that the invention seeks to solve]

However, since the above-mentioned heat-sealing layer was formed by coating or laminating a heat-fused and adhesive sheet on the inside of a heat-resistant and air-impermeable base sheet, the following There was a problem.

That is, the welding of the heat-adhesive layer is carried out at home by heating and pressurizing the surface of the base body corresponding to the heat-adhesive layer closest to the open end of the receiving opening, mainly using an iron. However, as mentioned above, since the package is only a double structure consisting of the base and the heat-sealing layer, it will stretch when heated and pressed while pressing the iron, and this stretch will cause wrinkles in the storage opening, causing Sometimes it was not possible to seal the mouth accurately.

In addition, especially when a large item such as a futon is stored in the package, the shape of the package is distorted by the item, so it is difficult to close the storage opening without leaving a gap.

The present invention was made in view of these circumstances, and
It is an object of the present invention to provide a method for accommodating articles that can reliably seal the accommodating opening of a package containing the articles.

Means for Solving Problem c] In order to achieve the above object, the article storage method according to the present invention stores the article from the article storage opening of the package whose base film is heat resistant and non-air permeable, A pair of mutually removable fastener portions made of thermoplastic adhesive resin and provided on the inner peripheral surfaces of opposing front and back portions of the base film are joined to close the article storage opening, and the article storage opening is closed. It is characterized in that the article storage opening is sealed by welding the fastener part.

[For production]

By doing as described above, even if the package loses its shape due to the articles housed in the package, the storage opening is reliably closed in advance by joining the pair of fastener parts. In addition, even when heated and pressurized with an iron, etc., the expansion of the article storage opening of the package is relatively suppressed by the zipper portion, and even if expansion occurs, the melted fastener portion closes the gap created in the article storage space due to this expansion. Therefore, there will be no gap in the accommodation opening to be sealed.

〔Example〕

FIG. 1 is a partially cutaway front view showing the state of the futon before it is stored, as an example of the storage packaging structure for carrying out the method of the present invention, and FIG. FIG. 3 is an enlarged sectional view showing a welded and sealed state. In these figures, a package 1 has a size that can completely cover a folded futon A, and has a bag shape with an article storage opening 2 formed at one end.

The package 1 includes a base film 3 having a double structure, a zipper part 4 made of thermoplastic adhesive resin and provided on the inner circumference side of the opposing front part 3a and back part 3b of the base film 3, which can be attached and detached from each other. 5 and an air vent portion 6 provided on the surface portion 3a of the base film 3.

The base film 3 is formed by coating or laminating an inner film 32 made of a thermoplastic adhesive resin that has adhesive properties when heated and melted on the inside of an outer film 31 that is highly heat resistant and air-impermeable, and is formed into a tube shape with both ends open. It is formed into a bag shape by closing one end.

As the external film 31 having high heat resistance and air impermeability, a polyamide resin film (6, 6
Nylon, Nylon 6) is recommended, and polyethylene or the like is recommended as the inner surface film 32 that can be heated and melted to have adhesive properties.

The fastener part 4.5 can completely close the article storage opening 2 of the package 1, and the fastener part 4 is formed to have a concave cross section, and the fastener part 5 is formed to have a convex cross section. By pressing the base body 3 from both the front and back sides of the opening 2 from one end to the other, they fit into each other and close the article storage opening 2. These fastener parts 4.5 are attached to the film 3 constituting the base film 3.
Similar to 2, it is made of a thermoplastic adhesive resin such as polyethylene or EVA (ethylene acetate picopolymer) that has adhesive properties when melted by heating. Therefore, these fastener parts 4.5 may be integrally formed with the inner surface film 32, or may be formed separately and bonded to the film 32 using an adhesive or welding means.

As shown in FIG. 4, the air vent part 6 includes a socket 7 that is attached to the base film 3 by penetrating the inside and outside of the package J.
, a gap body 8 screwed into the socket 7 from the outside of the package 1, an air introduction body 9 that covers the inner end of the package 1 of the socket 7, and a cover 10 that hides the socket 7.

The socket 7 is made of thermoplastic adhesive resin such as polyethylene, and includes a cylindrical main body part 71 with an open upper end and a flange part 72 provided on the outer periphery of the central part of the main body part 71. A female thread 71a is cut on the inner periphery of the main body 71, and an air passage hole 71c is formed in the center of the bottom plate 71b of the main body 71.
is drilled. A protrusion 71d having a semicircular cross section is formed on the periphery of the air passage hole 71c on the inner side of the main body portion 71. In the socket 7 formed in this manner, in the front part 3a and the back part 3b facing each other of the base film 3, the main body part is located in the opening part 3c formed in the center part in the width direction, biased toward the other end side of the front part 3a. 71 is inserted from the inside. The upper surface of the flange portion 72 is fused to the inner surface film 32 of the base film 3, thereby being airtightly attached to the base film 3.

As shown in FIG. 5, the cap body 8 has a flange 81 on the outer circumferential surface of the central portion in the axial direction. Screw part 8
2 is formed. Further, an air passage 83 is formed on the central axis of the cap body 8 to communicate the upper end side and the lower end side. A packing holder 8 is provided in the cap body 8 in the air passage 83 and slightly above the lower end of the cap body 8, that is, the lower end of the male threaded portion 82.
4 are integrally molded. A packing 85 made of urethane or the like and having a larger diameter than the air passage hole 71c provided in the socket 7 is attached to the packing holder 84. The lower end surface of this gasket 85 is on the same plane as the lower end of the male screw 82. Therefore, when the male screw 82 is screwed into the female screw 71a of the socket 7, the gasket 85 is inserted into the protrusion 71d formed on the bottom surface of the socket 7. The air conduction hole 71c
can be occluded. 84a is the packing holder 8
This is a through hole provided on the outside of the packing 85 mounting portion in order to communicate between the upper and lower parts of the packing 85. Incidentally, if the camp body 8 and the socket 7 are made to engage when the cap body 8 is rotated to a certain extent toward the loosening side, the cap body 8 will not come off from the socket 7, and the cap body 8 will not be lost. There's nothing left to do.

The air introduction body 9 consists of a container-shaped main body 91 having a flat truncated conical outer shape, and a flange 92 formed around the large diameter end of the main body 91. socket 7
It is fused to the flange portion 72 of.

Therefore, the main body part 91 covers the end of the socket 7 on the inside side of the package 1, that is, the air passage hole 7-10. The main body part 91 has a large number of through holes 91a formed in the flat part and the inclined part.

Further, the inclined portion of the main body portion 91 has the through hole 91. a
Triangular support pieces 91b- are erected at multiple locations between.

The cover 10 has an outer diameter equal to the flange portion 72 of the socket 7.
It is a ring-shaped plate whose inner diameter is equal to and slightly larger than the outer diameter of the main body part 71 of the socket 7, and hides the flange part 72 of the socket 7 fused to the back side of the transparent base film 3. Therefore, the front part 3a of the base film 3
It is attached or fused to the surface.

In order to store the futon A in the package 1 constructed as described above, first, the futon A is inserted into the package 1 through the article storage opening 2 shown in FIG. 1, and the futon A is completely covered.

Next, the fastener parts 4.5 are pressed from the outer peripheral surfaces of the front part 3a and the back part 3b of the base film 3 to join these fastener parts 4.5 from one end of the article storage opening 2 to the other end. This article storage opening 2 is closed by the following steps.

Next, using an iron or a simple heat sealer in the shape of scissors, the fastener part 4 joined as described above is attached.
The surface of the package 1 is heated and pressurized from the outer peripheral surface of the base film 3 corresponding to 5. With this, the fastener part 4,
5 are welded together to form a fused tank 11 as shown in FIG. 3, and the article storage opening 2 is sealed.

After the sealing process is performed as described above, the camp body 8 is operated to loosen the screw connection with the socket 7 and create a gap between the gasket 85 and the protrusion 71d.

Next, a suction nozzle of a household vacuum cleaner or the like is airtightly fitted into the socket 7, and the vacuum cleaner is started to remove the package 1.
The air existing in the sealed space IX and the air contained in the futon A are exhausted. As a result, the pressure inside the package 1 is reduced, and the futon A is compressed by the action of atmospheric pressure, reducing its volume.

When the sealed space IX of the package 1 reaches a low vacuum state,
When the suction nozzle 21 is quickly removed from the socket 7 and the cap body 8 is strongly screwed into the socket 7 again, the gasket 85 comes into close contact with the protrusion 71d, thereby maintaining the low vacuum state of the sealed space 1χ.

When the futon is housed in the package 1 as described above, the zipper part 4.5 is joined in advance and then fused with an iron or the like. Even if the shape is out of shape, the article storage port 2
is closed without any gaps. Further, since the fastener portion 4.5 plays a role of reinforcing the base film 3, the extension of the base film 3 is suppressed by heating and pressing using an iron or the like. Furthermore, even if the article storage opening 2 is wrinkled due to elongation, the melted fastener portion 4.5 closes the gap caused by the wrinkles, so that a reliable seal can be achieved.

In addition, the air introduction body 9 has an air introduction hole 7 provided in the socket 7.
1d, and the support piece 91b provided on the air introducing body 9 allows the through hole 9 of the inclined portion to be closed.
Since 1b is prevented from being blocked by the futon A, air can be smoothly extracted.

Furthermore, by reducing the vacuum inside the package 1 and compressing the futon A, its volume is reduced to 175 to 1/10.

Therefore, the space required for storage is reduced, and transportation efficiency is greatly improved.

Furthermore, since the inside of the package 1 is completely cut off from oxygen, pests that have entered the futon etc. housed inside are killed, and the growth of mold and the invasion of pests are prevented.

Furthermore, since the package 1 uses a highly non-air permeable film as the base film 3, naturally occurring outside air is prevented from entering, and storage can be achieved for a long period of time.

It should be noted that the present invention is of course not limited to the above embodiments, and for example, a polyamide resin film such as 6.6 nylon or 6 nylon as in the embodiments is recommended as the film used as the base film 3. of things,
Other materials may be used as long as the film is heat resistant and non-air permeable, and other materials may be used for the zipper portion, although polyethylene resin is recommended.

Furthermore, the package 1 may have a base film having a two-layer structure of a heat-resistant film and a film with high resistance to transport, and the base film may be provided with a zipper portion.

Further, as shown in FIG. 7, a plurality of pairs of fastener portions may be provided. In this way, by sequentially using the fastener portions from the end side of the article storage opening, it becomes possible to use the same package repeatedly.

Furthermore, in the above embodiment, the air inside the package 1 is extracted from the socket 7 after the fastener part 4.5 is fused, but the method of the present invention can also be applied to articles other than air-containing articles such as futons. This can also be applied when the device is stored in a package, and in that case, the package does not necessarily require the above-mentioned configuration for removing air.

〔Effect of the invention〕

As is clear from the above description, according to the article storage method according to the present invention, the sealing process involves joining the fastener parts in advance and then fusing the fastener parts with an iron or the like. Even if the shape of the article package is distorted, the article storage opening will close without any gaps! be done. Moreover, the fastener portion plays a role of reinforcing the base film, and the elongation of the base film due to heat and pressure when using an iron or the like is suppressed. Moreover, even if the zipper stretches, the melted fastener portion closes the gap created by the wrinkles caused by the stretching, so that a reliable seal can be achieved. Therefore, it is possible to reliably seal the receiving opening of the package containing the article.

[Brief explanation of the drawing]

FIG. 1 is a partially cutaway front view showing the state before the futon is stored as an example of the storage packaging structure for carrying out the method of the present invention, and FIG. 2 is taken along line nn in FIG. 1. 3 is an enlarged sectional view showing the state of fusion sealing, and 4
The figure is an enlarged view of the air vent, Figure 5 is a cutaway perspective view of the structure of the socket part, Figure 6 is a perspective view of the air introduction body,
FIG. 7 is a perspective view of the main parts showing the other side of the accommodation packaging structure. ■-Package 2-Article storage opening 3-Base film 4.5-Zipper section-〇

Claims (1)

[Claims] (1) A package whose base film is heat resistant and non-air permeable, stores the article through the article storage opening of the package, and is made of thermoplastic adhesive resin and is placed on the inner circumference side of the opposing front and back sides of the base film. A method for accommodating articles, characterized in that the article accommodating opening is closed by joining a pair of mutually detachable fastener parts, and the article accommodating opening is sealed by welding the pair of fastener parts.