JP2557654Y2 - Moisture proof bag - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a moisture-proof bag for accommodating electronic components and the like that are sensitive to humidity.

[0002]

2. Description of the Related Art As a conventional moisture-proof bag, as shown in FIGS. 6 and 7, two bag materials 11 and 12 of the same size are stacked and the left side portion, the right side portion and the front side of the bag materials 11 and 12 are arranged. In general, a moisture-proof bag provided with a sealing portion 13 by adhering each portion with an adhesive or the like is used.

[0003]

In this conventional moisture-proof bag, seal portions must be provided on three sides, that is, a left side portion, a right side portion, and a front side portion. Therefore, the seal portions must be formed on the three side portions. In addition to this problem, sophisticated electronic components such as printed circuit boards are stored in moisture-proof bags that have moisture-proof properties to prevent deterioration and deterioration due to humidity during storage and transportation after manufacturing. In a moisture-proof bag provided with a seal portion on the three sides and a single seal portion, the seal portion on the three sides is many in three places, and humidity enters the bag because of the single seal portion. There is a problem that it is difficult to completely prevent this.

The purpose of the present invention is to solve these problems of the conventional moisture-proof bag, to prevent moisture from entering the moisture-proof bag, to make the moisture-proof bag simple, and the like.

[0005]

The moisture-proof bag of the present invention is provided with a bent portion on the front side of the moisture-proof bag and the left and right sides.
The parts and the rear side provided with a turned-back piece to the right and left side portions of the bag double arsenide
It is provided with a chromatography preparative seal.

[0006]

[Function] The seal portion is reduced by one by bending the front side of the moisture-proof bag, and the left and right sides of the moisture-proof bag are left and right sides.
Good that humidity from the lower right and left side portions of the bag from entering into the bag to the heat sealing section of a double over the upper surface of
Prevention . Then, after storing items such as electronic components in the moisture-proof bag through the rear opening of the bag, a double heat sink on the left and right sides is provided.
Dual heating in the same manner as the over preparative seal portion on the rear side opening of the bag
Humidity from the opening side of the bag by providing a seal portion of the bets are prevented well from entering into the bag.

[0007]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an exploded perspective view of a moisture-proof bag of the present invention. As shown in FIGS. 4 and 5, polyethylene resin (PE) is applied in a thin film form on both sides of a moisture-proof bag material 1, for example, an aluminum alloy foil, whose length is about twice as long as the bag. Bag material 1 from back to front
It is folded and a bent portion 2 is provided on the front side. On the left and right sides of the bag material 1 'on the back side, folding pieces 3 and 3 continuous with the bag material 1' are provided in advance, respectively, and the bag material on the back side is provided.
Keep in providing the turnup members 4 which are continuous in a rear side portion in advance, back
Side bag material 1 'and front side bag material 1 "
As shown in FIGS. 1 and 2, a hot-melt synthetic resin
First Hitoshi were respectively heat Toshiru by (PE)
And the folded pieces 3 and 3 provided continuously with the bag material 1 'on the back side are respectively placed on the upper side of the bag material 1 "on the front side.
Fold back to the surface and heat-melt from side to top of bag material 1 "on the front side
Second heat-sealed with synthetic resin (PE)
A heat seal portion 5 ″ is provided. As shown in FIG .
1 "heat sealing the lower surface of the 1" and the bag material 1 'on the back side
From the side of the heat seal portion 5 'and the bag material 1 "on the front side
The second heat-sealing part for heat-sealing the surface and the folded piece 3
The moisture-proof bag 6 is double-sealed with a double heat-sealing portion made of 5 ″ .

[0008] As shown in FIGS. 1 and 3 when using the moisture-proof bag 6 in this embodiment fact, after storing received material from the rear side opening 7 of the moisture-proof bag 6, the left and right sides two Heavy first
In the same manner as the heat seal portion 5 'and the second seal portion 5 " ,
The bag material 1 'on the back side of the moisture-proof bag 6 and the bag material 1 "on the front side are attached to the rear part.
Heat-sealed with hot-melt synthetic resin (PE)
One heat seal part is provided, and continuous folding is performed on the bag material 1 'on the back side.
Flip the return piece 4 and use the return piece 4 from the side of the bag material 1 ″ on the front side.
Heat seal the upper surface with hot-melt synthetic resin (PE)
The second heat seal portion 8 is provided, and the rear opening 7 of the moisture-proof bag 6 is used in a double sealed state.

[0009] Having described the polyethylene resin (PE) on both sides of an aluminum alloy foil as the Fukurozai 1 in this embodiment will bag material coated in a thin film, an aluminum foil as the bag material (aluminum alloy foil and pure Aluminum foil)
A heat-fusible synthetic resin such as a polypropylene resin (PP), an ethylene-vinyl acetate copolymer (EV)
A), ethylene-acrylate copolymer (EE
A), ethylene-acrylic acid copolymer (EAA), ionomer resin, amorphous-polyethylene terephthalate (A-PET), vinyl chloride-vinyl acetate heat seal lacquer, vinyl chloride-acrylic heat seal lacquer, or bag material provided with the film The double seal may be bonded with an adhesive or heat-sealed with a heat-fusible synthetic resin. Heat sealing with a heat-fusible synthetic resin makes sealing easier.

[0010]

[Effect of the invention] The moisture-proof bag of the invention is a moisture-proof bag.
A folded part is provided on the front side and a folded piece is provided on the left and right side and the rear side, and a first heat seal part is provided on the left and right side of the bag.
Provided a double heat seal portion of the second heat-sealed portion
The left and right sides of the bag are heat-sealed in three places: bottom, top and side.
Lumpur to treasure, to humidity from the front side of moisture-proof bag can be completely prevented from entering, it is possible to prevent the moisture from the right and left sides of the moisture-proof bag enters completely. And of the bag
Since it is unnecessary to provide a heat sealing portion just by folding the front side, a moisture-proof bag can be easily formed. Further, after storing the items in the moisture-proof bag through the rear opening , the first heat-sealing portion and the second heat-sealing portion are provided by folding pieces provided on the rear side similarly to the double heat sealing portions on the left and right sides.
By using a double heat seal part with the heat seal part, the rear side of the bag can be placed in three places: lower, upper and side.
, Heat can be completely prevented from entering from all sides, such as the rear side and the left and right sides of the moisture-proof bag storing the stored items.

[Brief description of the drawings]

FIG. 1 is a plan view of a product of the present invention.

FIG. 2 is an enlarged sectional view taken along line AA of FIG.

FIG. 3 is a plan view when the product of the present invention is used.

FIG. 4 is a plan view of a bag material.

FIG. 5 is a plan view showing a state where a bag material is folded in two.

FIG. 6 is a plan view of a conventional product.

FIG. 7 is an enlarged sectional view taken along the line BB of FIG. 6;

[Explanation of symbols]

1 bag material 2 bent part 3 Orikaehen 4 Orikaehen 5 'first heat sealed portion 5 "second heat sealed portion 6 moistureproof bag 7 rear end opening 8 and the second heat-sealed portion

Claims (1)

(57) [Scope of request for utility model registration] 1. A bag material having a moisture-proof property which is about twice as long as a bag is folded in two from one side to the other side to provide a bent portion on the front side and one side. A folded piece is provided continuously on the left side, right side and rear side of the bag material,
Heat the bag material on both sides at the left and right sides of the bag material.
And a first heat seal portion for sealing is provided.
The folded pieces of the left side and the right side of the bag material on one side are respectively folded on the upper surface of the bag material on the other side, and are connected to the bag material on one side.
Wrapped pieces from the left side of the bag material on the other side to the top and right sides
Second heat seal that heat seals the upper surface and the upper surface respectively
Provided part, moisture-proof bag, characterized in that a heat-sealed portion of the duplex.