JP2001097450A - Packaging bag - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a packaging bag for packaging an article which has to avoid fine dust extremely, capable of preventing dust from being brought into a clean room and saving labor of the packaging work. SOLUTION: This bag is made of a film which does not permeate fine dust and constituted of an internal bag 2 holding an article C and an external bag 3 covering the outside face of the internal bag. A pair of internal bag-forming pieces 5, 5 are superposed with each other and sealed at least along both sides to form the internal bag opened at the top side and completely cover one side face of the internal bag. A pair of external bag-forming pieces 6, 6 formed so that at least both sides and the bottom side project outward from the internal bag are superposed on both the faces of the internal bag and sealed along both sides and the bottom side to form the external bag opened at the upper side. The bag material is sealed along the upper sides of the internal bag and the external bag in a state an article is contained in the internal bag to form the packaging bag.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a packaging bag for packaging articles (eg, gloves, masks, etc. worn when handling semiconductor products) that extremely dislike fine dust floating in the air. It is.

[0002]

2. Description of the Related Art In general, this type of packaging bag is opened in a clean room so that dust does not adhere to an object to be packaged. However, if dust adheres to the outer surface of the packaging bag during a distribution channel or during storage. You will not be able to bring it into the clean room. Therefore, conventionally, the packaging bag has a double-bag shape including an inner bag for storing an article to be packaged and an outer bag covering the outer surface of the inner bag, and the outer bag is opened just before the clean room. The inner bag was taken out, and the inner bag was opened in a clean room to take out the article to be packaged.

[0003]

However, in this type of conventional packaging bag, the inner bag and the outer bag are separately manufactured outside the packaging site, and the inner bag and the outer bag are separately brought to the packaging site. Therefore, dust may adhere to the outer surface of the inner bag during delivery and distribution from a bag manufacturer or during storage.

In addition, since the step of inserting and sealing the package in the inner bag and the step of inserting and sealing the inner bag in the outer bag are separately performed, the inner bag into which the package is inserted is inserted. The time required to be transported to the place where it is inserted into the outer bag.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-described problems, and has as its object to provide a packaging bag for packaging an article that extremely dislikes fine dust, which dust is brought into a clean room. Another object of the present invention is to provide a product which can prevent packaging and save the labor of packaging work.

[0006]

In order to achieve the above-mentioned object, an invention according to claim 1 is provided with an inner bag formed of a fine dust-impermeable film and accommodating an object to be packaged, and an inner bag of the inner bag. An outer bag that covers an outer surface, wherein the inner bag having an open top side is formed by overlapping a pair of inner bag forming pieces together and sealing at least along both sides. A pair of outer bag forming pieces formed so as to completely cover one side and at least both sides and the bottom side project outward from the inner bag are superimposed on both sides of the inner bag, and along the both sides and the bottom side. Forming an outer bag having an open top by sealing, and sealing along the tops of the inner bag and the outer bag in a state where an article to be packaged is contained in the inner bag. Things.

According to a second aspect of the present invention, in the packaging bag of the first aspect, the inner bag forming piece and the outer bag forming piece are formed of a series of films.

According to a third aspect of the present invention, in the packaging bag of the first aspect, means for individually opening the inner bag and the outer bag is provided.

According to a fourth aspect of the present invention, there is provided a packaging bag comprising an inner bag formed of a fine dust-impermeable film and accommodating an article to be packaged, and a pair of outer bodies covering both surfaces of the inner bag. It was formed so that a pair of inner bag forming pieces were overlapped with each other and sealed along at least both sides to form an inner bag whose top side was opened, and completely cover one surface of the inner bag. A pair of exterior body forming pieces are superimposed on both sides of the inner bag to form a pair of exterior bodies by being peelably sealed, and the top of the inner bag is formed in a state in which the article to be packaged is contained in the inner bag. It is characterized by being sealed along the sides.

According to a fifth aspect of the present invention, in the packaging bag of the fourth aspect, the inner bag forming piece and the outer body forming piece are formed by a series of films.

According to a sixth aspect of the present invention, in the packaging bag of the fifth aspect, the packaging bag is cut along a boundary portion between each of the exterior bodies and the inner bag.

The invention according to claim 7 is characterized in that, in the packaging bag according to claim 4, means for opening the inner bag is provided.

According to an eighth aspect of the present invention, in the packaging bag of the fourth aspect, an unsealed portion is formed at a corner of each of the exterior bodies.

[0014]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, specific embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a development view of a film forming a packaging bag according to a first embodiment of the present invention, and FIG.
FIG. 3 is an explanatory view of a manufacturing method of the packaging bag according to the first embodiment, and FIG.
FIG. 2 is a front view of the inner bag of the packaging bag according to the first embodiment.

The packaging bag 1 of this embodiment is for packaging gloves, masks, and the like worn when handling semiconductor products, and as shown in FIG. As shown in FIG. 2 (c), the rectangular inner bag 2 is formed of a plastic film 4 and accommodates the article C to be packaged, and the rectangular outer bag 3 covers the outer surface of the inner bag 2. Made up of

The film 4 shown in FIG. 1 is obtained by laminating a film of CPP (unstretched polypropylene) and a film of OPP (biaxially stretched polypropylene) and punching it into a predetermined shape. The agent is pattern-coated, and has a pair of rectangular inner bag forming pieces 5 and 5, and a pair of substantially rectangular outer bag forming pieces 6 and 6 connected thereto.

As shown in FIG. 2 (a), the film 4 is folded in two at the center at the packaging site (in a clean room) of the packaged object, and the inner bag forming pieces 5, 5 superimposed on each other are on both sides. The inner bag 2 is heat-sealed along the side. The hatched portions in each drawing represent the heat seal bands.

The outer bag forming pieces 6, 6 have a boundary line 4 with the inner bag 2.
is bent parallel to the boundary line 4a at a position closer to the inside by a predetermined distance than the inner bag 2 and is folded on the inner bag 2, and in this state, one side of the inner bag 2 is completely covered and the four sides are the peripheral portion of the inner bag 2. It is formed so as to protrude further outward. The peripheral portions of the outer bag forming pieces 6, 6 overlapping each other are heat-sealed along both sides and the bottom side, and as shown in FIG.
The outer bag 3 is formed.

Then, the article to be packaged C is inserted into the inner bag 2, and in this state, heat-sealed along the top sides of the inner bag 2 and the outer bag 3 to form a package as shown in FIG. Bag 1

Next, a method of using the packaging bag 1 will be described. Before the clean room, the packaging bag 1 is cut along the boundary between the inner bag 2 and the outer bag 3 by using scissors, a knife, or the like, as shown by a two-dot chain line in FIG. As a result, the outer bag 3 is opened and the inner bag 2 is separated from the outer bag 3 in a sealed state.
Remove from

The inner bag 2 taken out is cut and opened in the clean room, as shown by a two-dot chain line in FIG.

Notches are provided at the edges of the outer bag 3 and the inner bag 2 so as to be located on the two-dot chain lines, respectively, and the stretching direction of the film coincides with the cutting direction of the outer bag 3 and the inner bag 2. By doing so, the outer bag 3 and the inner bag 2 can be cut by hand starting from the notch. In this case, scissors and knives become unnecessary, and opening becomes easy.

As described above, since the packaging bag 1 is manufactured at the packaging site of the package C (in the clean room), dust does not adhere to the outer surface of the inner bag 2. In addition, since the process from the production of the packaging bag 1 to the completion of the packaging operation can be performed in a series of steps, there is no transfer between the steps,
It does not take time and effort.

Next, a second embodiment of the present invention will be described. FIG. 4 is a development view of a film forming the packaging bag according to the second embodiment of the present invention, FIG. 5 is an explanatory diagram of a method for manufacturing the packaging bag according to the second embodiment, and FIG. 6 is a second embodiment. It is a front view of the inner bag of the packaging bag of FIG. In the following embodiments, portions corresponding to the first embodiment are denoted by the same reference numerals.

In the present embodiment, the outer bag forming pieces 6 are folded along the boundary line 4 a with the inner bag forming piece 5, So that both sides and the bottom side protrude outward from the peripheral edge of the inner bag 2.

The film 4 is folded in two at the center, and
As shown in (a), after the inner bag forming pieces 5, 5 overlapping each other are heat-sealed along both sides to form the inner bag 2, the outer bag forming pieces 6, 6 are placed on the inner bag 2. The outer rims of the outer bag forming pieces 6, which are folded and overlapped with each other, are heat-sealed along both sides and the bottom side, and the outer bag 3 is formed as shown in FIG.

Then, the article to be packaged C is inserted into the inner bag 2 and, in this state, heat-sealed along the mutually overlapping top sides of the inner bag 2 and the outer bag 3 (however, the outer bag 3 is 2 is not adhered), resulting in a packaging bag 7 as shown in FIG.

In order to open the packaging bag 7, scissors, a knife, or the like is used to slightly open the boundary between the inner bag 2 and the outer bag 3 as shown by a two-dot chain line in FIG. Disconnect. As a result, the inner bag 2 is separated from the outer bag 3, and the inner bag 2 is taken out of the outer bag 3.

The taken-out inner bag 2 is cut and opened along a little inside the heat seal band on the top side as shown by a two-dot chain line in FIG.

Next, a third embodiment of the present invention will be described. FIG. 7 is a development view of a film forming the packaging bag of the third embodiment of the present invention, FIG. 8 is an explanatory diagram of a method of manufacturing the packaging bag of the third embodiment, and FIG. 9 is a third embodiment. It is a front view of the inner bag of the packaging bag of FIG.

As shown in FIG. 8 (c), the packaging bag 8 of the present embodiment comprises a rectangular inner bag 2 for accommodating the article C to be packaged.
The inner bag 2 includes a pair of rectangular exterior bodies 9, 9 that cover both surfaces of the inner bag 2.

The film 4 forming the packaging bag 8 is shown in FIG.
As shown in FIG. 5, a pair of rectangular inner bag forming pieces 5 and 5 and a pair of rectangular outer body forming pieces 10 and 1 connected thereto are provided.
0. The outer body forming pieces 10, 10 are bent along the boundary line 4 a with the inner bag forming piece 5, and are formed so as to be aligned with one surface of the inner bag 2 while being folded on the inner bag 2. .

This film 4 is folded in two at the center,
As shown in FIG. 8A, the inner bag forming pieces 5, 5 overlapping each other are heat-sealed along both sides to form the inner bag 2. Then, the outer body forming pieces 10 and 10 are folded on the inner bag 2, and as shown in FIG. 8B, are sealed on one side of the inner bag 2 so as to be peelable along both sides and a bottom side. In addition, unsealed portions 11 are formed at the corners of the exterior bodies 9 and 9 so as to be easily separated from the inner bag 2.

Then, the article to be packaged C is inserted into the inner bag 2 and is heat-sealed along the top side of the inner bag 2 in this state to form a packing bag 8 as shown in FIG. .

To open the packaging bag 8, a pair of scissors or a knife is used to slightly open the boundary line 4a between the inner bag 2 and the outer bag 3 as shown by a two-dot chain line in FIG. Cut along
The unsealed portions 11 of the exterior bodies 9 and 9 are pinched to
From the inner bag 2.

At the time of manufacturing, the outer body forming pieces 10, 10
May be cut on the inner bag 2, and then a little inside the boundaries 4 a, 4 a (that is, the top side of the packaging bag 8) between the outer packages 9, 9 and the inner bag 2. . This eliminates the need for the user to cut the packaging bag 8 and facilitates opening.

The inner bag 2 from which the outer casings 9 and 9 have been peeled off is cut off a little inside the heat seal band on the top side as shown by a two-dot chain line in FIG.

It is to be noted that the outer body forming pieces 10 and 10 are
At least a part of the peripheral edge portion is folded in the inner bag 2
May be formed so as to protrude outward from the peripheral edge portion, and the protruding peripheral edge portions of the exterior body forming pieces 10 and 10 may be peelably sealed.

The present invention is not limited to the above embodiment, and various changes can be made to the above embodiment.

For example, in the above embodiment, the inner bag forming pieces 5, 5 and the outer bag forming pieces 6, 6 or the outer body forming pieces 10, 1
Although the case where 0 is formed by a series of films has been described, these may be formed by separate films. In this case, when the inner bag is formed, the inner bag forming pieces 5, which are overlapped with each other, are sealed along the three sides of the both sides and the bottom side.

In addition, various changes can be made without departing from the gist of the present invention.

[0042]

As described above, the packaging bags according to the first and fourth aspects of the present invention can be manufactured in a series of steps from the production to the completion of the packaging work at the packaging site of the article to be packaged. Dust does not adhere to the outer surface, dust is not brought into the clean room in which the inner bag is opened, and the labor for packaging can be saved.

Further, in the packaging bag according to the second and fifth aspects, the inner bag forming piece and the outer bag forming piece or the outer body forming piece are formed of a series of films, so that the inner bag forming piece has:
The positioning with the outer bag forming piece or the outer body forming piece is easy, and it is possible to manufacture efficiently and accurately.

The packaging bag of the third aspect has means for separating the inner bag from the outer bag in a sealed state, so that the bag can be easily opened.

Further, since the packaging bag of the sixth aspect is cut along the boundary between each outer body and the inner bag, it is necessary to cut each outer body from the inner bag using scissors or a knife. And the removal of the exterior body is easy.

Further, since the packaging bag of the present invention has a means for opening the inner bag, the opening is easy.

Further, in the packaging bag of the present invention, since the unsealed portions are formed at the corners of each outer body, the outer body is easily peeled off.

[Brief description of the drawings]

FIG. 1 is a development view of a film forming a packaging bag according to a first embodiment of the present invention.

FIG. 2 is an explanatory diagram of a method for manufacturing the packaging bag according to the first embodiment.

FIG. 3 is a front view of the inner bag of the packaging bag according to the first embodiment.

FIG. 4 is a development view of a film forming a packaging bag according to a second embodiment of the present invention.

FIG. 5 is an explanatory view of a method for manufacturing a packaging bag according to a second embodiment.

FIG. 6 is a front view of the inner bag of the packaging bag according to the second embodiment.

FIG. 7 is a development view of a film forming a packaging bag according to a third embodiment of the present invention.

FIG. 8 is an illustration of a method for manufacturing a packaging bag according to a third embodiment.

FIG. 9 is a front view of the inner bag of the packaging bag according to the third embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Packaging bag 2 Inner bag 3 Outer bag 5 Inner bag forming piece 6 Outer bag forming piece C

Claims (8)

[Claims] 1. A packaging bag comprising an inner bag formed of a fine dust-impermeable film and containing an object to be packaged and an outer bag covering an outer surface of the inner bag, wherein a pair of inner bags is formed. By overlapping the pieces together and sealing at least along both sides, an inner bag with an open top is formed, and at least both sides and the bottom side are completely outwardly from the inner bag while completely covering one surface of the inner bag. A pair of outer bag forming pieces formed so as to protrude are superimposed on both surfaces of the inner bag and sealed along both sides and the bottom side to form an outer bag having an open top, and the inside of the inner bag is formed. A packaging bag characterized by being sealed along the top sides of the inner bag and the outer bag in a state in which the article to be packaged is accommodated. 2. The packaging bag according to claim 1, wherein the inner bag forming piece and the outer bag forming piece are formed by a series of films. 3. The packaging bag according to claim 1, further comprising means for individually opening the inner bag and the outer bag. 4. A packaging bag comprising an inner bag formed of a fine dust-impermeable film and accommodating an article to be packaged, and a pair of exterior bodies covering both surfaces of the inner bag, wherein the pair of inner bags are provided. A pair of exterior body forming pieces formed so as to overlap the bag forming pieces with each other and seal at least along both sides to form an inner bag whose top side is open, and to completely cover one surface of the inner bag. A pair of exterior bodies is formed by overlapping and peeling off on both sides of the inner bag to form a pair of exterior bodies, and sealing is performed along the top side of the inner bag in a state in which the article to be packaged is contained in the inner bag. A packaging bag, comprising: 5. The packaging bag according to claim 4, wherein the inner bag forming piece and the outer body forming piece are formed by a series of films. 6. The packaging bag according to claim 5, wherein the packaging bag is cut along a boundary between each of the exterior bodies and the inner bag. 7. The packaging bag according to claim 4, further comprising means for opening the inner bag. 8. The packaging bag according to claim 4, wherein an unsealed portion is formed at a corner of each of the exterior bodies.