JPH0617721Y2 - Goods storage bag - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to an article storage bag that seals and holds an article, and that makes it extremely easy to open and close the sealing section for convenient storage or carrying.

[Conventional technology]

In recent years, an article storage bag mainly made of a thermoplastic resin foam sheet and having an opening that can be sealed has been used, and the bag itself is tough and has excellent heat insulating properties (for example, actual development 51- No. 150919, No. 60-15868, etc.). Furthermore, a metal vapor-deposited film layer is attached to this to make a cold and heat-insulating bag.
-161912 publication).

In this case, the opening can be opened and closed as easily and quickly as possible, and further, as a closing mechanism, a concave line is provided on one side of the opening edge, and a convex line on the other side is formed so as to mesh with each other (the above-mentioned actual opening 51). No. -150919, No. 60-15868 / Kaikai Sho-60-15868), or one having a snap button facing the rim of the opening (the same is also Kokai No. Sho-53-161912).

[Problems to be solved by the device]

However, in the case of opening and closing the opening, with the former structure in which the concavo-convex strips are engaged with each other, the convex strips are brought into contact with the entrances of the concave strips, and then pressed from the outside by hand evenly over the longitudinal direction. Since they are combined, it takes time and effort during the closing work.
Furthermore, it is difficult to open the opening easily during the opening work, and structurally unreasonable. In addition, the latter snap button is disadvantageous in that it requires a lot of time to open and close and is partially engaged, so that the sealing property is poor.

[Means for Solving the Problems]

On the other hand, the present invention uses a peelable adhesive material as the openable / closable sealing means. Originally attached via the adhesive surface, for example, in the case of wallpaper, stickers, plate-shaped objects, etc., the back surface is formed on the adhesive surface, and in use, the backing paper adhered to the adhesive surface is peeled off to adhere. Many,
In this case, the backing paper is made of a material that is easily peeled off from the adhesive surface, and can be easily bent to the adhesive surface.

This invention was developed with this point in mind, and either inserts a rather hard connecting plate with an adhesive surface formed on at least one side in advance inside the opening of the bag, or Form an adhesive surface on the circumference, insert a connecting plate inside it, and bond it to the bag body via the adhesive surface, and when opening, hold one of the rims of the bag body with the connecting plate, By pulling the other one of the rims outward and peeling it off from the connecting plate, the surface that is pulled outward bends freely, and it becomes the same state as when peeling the backing paper, and it is extremely easy to peel off. It makes use of the fact that it is possible.

[Example of device]

An embodiment of the present invention will be described with reference to the drawings. In FIG. 1, reference numeral 1 is a bag main body, which is made as a rectangular bag having two upper and lower two sheets 2 and 3 stacked and an opening 4 at an upper end thereof. Inside the opening 4, a slightly rigid strip-shaped connecting plate 5 made of cardboard or the like is inserted with its upper edge aligned with the edge of the opening 4.

As is clear from FIG. 2, the sheets 2 and 3 are made by laminating the thermoplastic resin films 7 and 7 on both sides of the thermoplastic resin foam sheet 6, and the connecting plate 5 is slightly narrower than the opening 4. An adhesive layer 8 is provided on the outer circumference of the adhesive layer 8 with a width and at a slight distance from the upper edge.

Further, the present invention is not limited to the above-mentioned embodiment, for example, one in which the connecting plate 5 is fixed to one surface on the inner side of the opening 4 so that peeling of the adhesive layer 8 and opening / closing by adhesive are limited to one surface, or an adhesive material. May be divided into small pieces and adhered. The adhesive layer 8 may be one in which an adhesive is directly applied or a double-sided adhesive tape is attached.

Next, FIG. 4 shows another example of the sheets 2 and 3, which is configured as a cold insulation and heat insulation bag, in which a metal vapor deposition layer 9 made of aluminum is previously formed on the back surface of the thermoplastic resin film 7 which is an outer surface.
In order to increase the heat insulation by the reflection effect, each part is indicated by the same reference numeral as in FIG.

The materials used in the above embodiment will be described.

As the adhesive layer 8 of the connecting plate 5, it is necessary to use an adhesive that produces a peel strength of 0.1 to 2.5 kg / cm, preferably 0.3 to 1.8 kg / cm (however, this value is shown in FIG. 6). As shown in FIGS. 3 and 4, the inner surface of the sheets 2 and 3 and the connecting plate 5 are adhered to each other. It is the value at the moment when either one is peeled off when pulled at a speed of min.) As such an adhesive material, for example, a synthetic resin is used as a base material, a plasticizer and a tackifier are added thereto, and a coagulant, Examples include anti-aging agents and stabilizers added. Examples of the tackifier include rosin-based resins such as polymerized rosin, terpene resins, styrene-based resins, petroleum resins, phenol resins, and natural products such as xylene-based resins and synthetic resins.

As the base resin constituting the thermoplastic resin film 7, polyamide such as nylon 6, nylon 66, nylon 11, nylon 12 or the like, polycarbonate obtained from bisphenol A, or high heat resistance such as polyester such as polyethylene terephthalate or polybutylene terephthalate Resin, polyethylene, polypropylene, polyvinyl chloride, etc. can be used. In particular, as the base resin forming the thermoplastic resin film layer 7 shown in FIG. 4, it is desirable to use the above-mentioned high heat-resistant resin which is safe against heat when metal is vapor-deposited. Further, as an adhesive material for adhering this to the foamed sheet 6, vinyl acetate resin, polystyrene, polyethylene, ethylene-vinyl acetate copolymer, phenol resin, epoxy resin or other synthetic resin as a main component, or styrene. A material containing a synthetic rubber as a main component such as a butadiene copolymer or a chloroprene copolymer is used. As the adhesive layer and the thermoplastic resin film layer, those having a thickness of 10 to 500 μm are usually used. As the base resin of the thermoplastic resin foamed sheet layer 6, a polyolefin resin such as polyethylene or polypropylene, polyvinyl chloride, polystyrene or the like can be used.
In particular, when a foamed sheet made of the above polyolefin resin is used, a cold / heat-insulating bag having excellent flexibility can be obtained. As the thermoplastic resin foam sheet layer 6, one having a thickness of 0.5 to 5.0 mm is usually used.

As described above with reference to FIG. 2, even if the adhesive layer 8 is provided on the inner circumference of the opening 4 instead of the outer circumference of the connecting plate 5 as shown in FIG. It is clear that the same effect as the above is exhibited.

Further, the shape and size of the article storage bag of the present invention is not particularly limited.

[Operation / Effect] With this structure, the connecting plate 5 has an adhesive layer 8 in a normal state.
It is adhered to the inner surface of the sheets 2 and / or 3 via the, and the bag main body 1 is in a sealed state.

Now, as shown in FIG. 3, one sheet is used to open the bag main body 1.
Clamp 2 together with connecting plate 5 with the fingertip of the left hand, and if a part of the other sheet 3 is pulled outward with the fingertip of the right hand, sheet 3 is pulled and bent, but connecting plate 5 does not deform, and Since the surface of the sheet is a smooth surface made of a thermoplastic resin film and the adhesiveness is not so strong, the sheet 3 is peeled off from the connecting plate 5 and the opening 4 is opened by the same action as the backing paper.

After storing the articles in this way, release the fingertips
3 is again bonded to the connecting plate 5 and the opening 4 is sealed.

In the present invention, as described above, the bag main body 1 is extremely easy to open and close and has excellent sealing property.However, for example, the sheet 3 is held together with the connecting plate 5 instead of the system shown in FIG. The method of pulling 2 is also adopted. According to this method, it is possible to open and close the bag mainly by a simple operation.

[Brief description of drawings]

FIG. 1 is a partially cutaway front view of an article storage bag according to the present invention, FIG.
FIG. 3 is a side sectional view showing an opening of an article storage bag according to the present invention in an exploded manner, FIG. 3 is a side sectional view showing a state in which one side of a sheet is pulled to open, and FIG. FIG. 5 is a side sectional view showing an example of an opening of an article storage bag of another embodiment according to the present invention in an exploded manner, and FIG. 6 is a drawing showing an operation of a peel strength test. . 1 ... bag-based, 2,3 ... sheet, 4 ... opening, 5 ... connecting plate, 6 ... thermoplastic resin foam sheet, 7 ... thermoplastic resin film, 8 ... adhesive layer, 9 ... metal vapor deposition layer, 20 ... aluminum Film.

Claims (2)

[Scope of utility model registration request] 1. A bag main body 1 having an opening 4 at an upper end thereof is formed by laminating sheets 2 and 3 in which thermoplastic resin films 7 and 7 are laminated on both sides of a thermoplastic resin foam sheet 6, and the opening 4 is formed. An article storage bag having a slightly hard connecting plate (5) having an adhesive layer (8) previously provided on at least one side in the inside thereof. 2. A bag main body 1 having an opening 4 at an upper end thereof is formed by laminating sheets 2 and 3 in which thermoplastic resin films 7 and 7 are laminated on both sides of a thermoplastic resin foam sheet 6, and the opening 4 is formed. An article storage bag in which an adhesive layer 8 is provided on the inner periphery and a somewhat hard connecting plate 5 is inserted in the opening 4 inside.