JPH09221147A - Bag body, bag filling body, and peeling method thereof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily peel an outer bag film when a housed matter is to be used. SOLUTION: This bag body is formed of a laminate film obtained by lightly adhering an outer bag film and a water soluble film in a peelable manner. Two sheets of the laminate film are superposed with the water-soluble film arranged inside and predetermined parts 201-205 are sealed with heat so as to fuse the facing water-soluble films at the predetermined parts, so that a bag-like shape whose one side is open is formed. At the outside area of the heat seal part 205, a non-heat seal part 208 and the heat seal parts 201, 203 which are adjacent to each other are formed. End parts (points B and C) at a boundary between the non-heat seal part 208 and the heat seal parts 201, 203 reach the outer edge of the bag body. The top side of the non-heat seal part 208 forms the top sides of the heat seal parts 201, 203, and the left side of the heat seal part 201 and the right side of the heat seal part 203 form a part of the outer edge of the bag body.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bag and a bag-filled body for containing desired contents.

[0002]

2. Description of the Related Art Conventionally, in order to store agricultural chemicals and other various kinds of contents, a bag made of a laminated film in which each layer is firmly laminated in a non-peeling manner is used. This conventional laminated film has a film (for example, a film made of LLD-PE (linear lowden polyethylene)) that can be thermally bonded to each other (that is, heat sealable) on the innermost side.
The inside of the bag body in which the laminated films are superposed so that the heat-bondable film is on the inside and heat-sealed at predetermined positions to weld and seal the heat-bondable films facing each other at the predetermined positions. The housed items are housed in the house.

There are two methods called a bag feeding method and an automatic wrapping method, respectively, as a method for keeping the contents in the sealed bag body formed by using the laminate film. In the bag feeding method, a bag manufacturer or the like manufactures a bag body with one side opened by using the laminate film, and the manufacturer of the contained goods receives the bag body and supplies the bag body with the bag body from the opening. This is a method in which the opening is closed by heat sealing after the contents are filled in. On the other hand, in the automatic packaging system, the manufacturer of the contents, etc. fills the contents while sequentially performing the superposition of the laminate films and the heat sealing of predetermined places, and finally stores the contents in a sealed bag. It is a method of putting it in a housed state.
In any of the methods, manufacturers of stored items and the like widely use automatic machines for automating the above steps. That is, in the case of the bag feeding method, an automatic machine that automatically heat-seals the opening after automatically filling the bag with the one side opened is used. Automatic machines are used to automate the automatic packaging process.

By the way, generally, even if the contained material is, for example, a pesticide in powder form (it is diluted with water during normal use), it is directly contained in the bag formed by the conventional laminated film described above. There is. Therefore, when the pesticide user opens the bag, the pesticide powder is rolled up when the pouch is opened and the user inhales the powder or the user touches the powder with his / her hand. So it will harm the human body. In addition, when the powdered pesticide is put into the inside of a tank or the like from the bag in order to dilute the powdered pesticide with water, the powdered pesticide will be rolled up, which will also harm the human body. . Also, even after taking out the pesticide from the bag,
Since the pesticide is attached to the inside of the bag body, if the bag body is discarded as normal garbage, it may cause pollution.

Therefore, in order to prevent such a danger and ensure safety in recent years, a powdered pesticide is contained in a bag body made of a water-soluble film and sealed, and a bag made of a water-soluble film is used. It has been practiced to further store the powdered pesticide contained in the body in the bag body made of the conventional laminate film described above and seal the pesticide. In this case, the water-soluble film bag is an inner bag and the conventional laminated film bag is an outer bag. The reason for using such an outer bag is that the water-soluble film is likely to deteriorate due to the external environment and its strength is not sufficient.

When such an inner bag and an outer bag are used, the pesticide does not roll up even if the outer bag is opened, and the pesticide is put in a tank or the like without being taken out from the inner bag. Since it suffices to add water to dilute it (which causes the inner bag made of the water-soluble film to dissolve), it is possible to ensure safety without harming the human body, and it is extremely easy to handle. Further, after the pesticide is taken out from the outer bag, the pesticide does not adhere to the inside of the outer bag, so that the outer bag can be discarded as normal waste without any problem.

The above-described circumstances apply not only to powdered pesticides, but also to granules, liquid pesticides, and various other contained substances.

[0008]

However, in the conventional method using the inner bag and the outer bag, the cost is greatly increased. That is, for example, in the conventional method using the inner bag and the outer bag, the inner bag has to be manufactured separately, resulting in an extra manufacturing cost, and the contents accommodated in the inner bag are stored in the outer bag. In order to accommodate the above, the existing automatic machine described above cannot be used in any of the above-mentioned bag feeding system and automatic packaging system, new equipment is required, and equipment cost is extra.

[0009] In view of the above, an outer layer film having one or more layers, a water-soluble film, a water-soluble film, and an intermediate layer interposed between the outer layer film and the water-soluble film are provided. A laminate film is prepared in which the intermediate film and the intermediate layer are strongly bonded, and the intermediate layer and the water-soluble film are in direct contact with each other and are weakly bonded in a releasable manner. By a bag method or an automatic packaging method, the laminated film is stacked such that the water-soluble film is on the inside, heat-sealed at a predetermined location, and welded and sealed between the water-soluble films facing the predetermined location to form a sealed bag body. It is conceivable to store the contents inside. The water-soluble films can generally be heat-bonded to each other.

According to this method, the bag made of the laminated film has a film for the outer layer and an intermediate layer which act as an outer bag (for convenience of explanation, these are collectively called an "outer bag film") and a water-soluble film which acts as an inner bag. Since it has a double structure with a flexible film, and the two are weakly adhered to each other so that they can be peeled off, the user of the contained article peels off only the film for the outer layer and the intermediate layer, and thus the inner bag described above is peeled off. And, similar to the method of the outer bag, it is possible to obtain the contents stored in the inner bag made of a water-soluble film, and the contents such as agricultural chemicals do not roll up, and the contents are removed from the inner bag. It can be put in a tank or the like without taking it out, and can be diluted with water as it is (this will dissolve the inner bag made of a water-soluble film), so it will not harm the human body and ensure safety. It is possible, the handling is very easy.

Since the laminated film can be handled in the same manner as the conventional laminated film when accommodating the contained object, the existing equipment such as an automatic machine can be used as it is. Further, unlike the method of the inner bag and the outer bag described above, since the inner bag is not manufactured separately, the manufacturing cost is not so much required.

However, in this method, if there is no part that triggers the peeling of the outer bag film, it is inconvenient for the user of the contents to peel the outer bag film.

The present invention has been made in view of such circumstances, and has a double structure of an outer bag and an inner bag made of a water-soluble film, and can be manufactured using existing equipment. Further, it is an object of the present invention to provide a bag body and a bag stuffing body capable of easily peeling off the outer bag film when using the contents, and a method of peeling the bag body and the bag packing body.

[0014]

In order to solve the above-mentioned problems, a bag according to a first aspect of the present invention comprises an outer layer film having one or more layers, a water-soluble film, and the outer layer film. A laminate film comprising an intermediate layer interposed between the water-soluble film and the outer layer film and the intermediate layer are strongly bonded, and the intermediate layer and the water-soluble film Using a laminated film that is directly in contact with and is weakly adhered so that it can be peeled off, the laminated film is overlapped so that the water-soluble film is on the inside, and a predetermined portion is heat-sealed and water-soluble facing the predetermined portion is used. The film is welded to form a bag with one side open.
Then, a non-heat-sealed portion and a heat-sealed portion adjacent to each other are formed in a region outside the heat-sealed portion surrounding the region where the stored object is to be stored in the laminated laminate film. One end of a boundary between the non-heat-sealed portion in the outer region and the heat-sealed portion in the outer region, wherein the front side laminate film and the back side laminate film are not continuous. Reach the outer edge of An outer edge of the bag body, which is a part of a peripheral edge of the non-heat-sealed portion in the outer region and continuous with the boundary line, wherein the front side laminate film and the back side laminate film are not continuous. Part of A part of the periphery of the heat seal portion of the outer region and a part continuous with the boundary line,
The front side laminate film and the back side laminate film form part of the outer edge of the bag body that is not continuous.

[0015] It should be noted that strong adhesion means that adhesion is performed with an adhesive force that makes peeling between them substantially difficult, and weak adhesion means adhesion that is weaker than the strong adhesion and that peeling is possible. Adhesion with a certain degree of adhesive strength.

A bag according to a second aspect of the present invention, in the bag according to the first aspect, is a part of a periphery of the heat-sealed portion in the outer region and opposed to the boundary line. However, the laminated film on the front side and the laminated film on the back side form part of the outer edge of the bag body that is not continuous.

The bag according to a third aspect of the present invention is the bag according to the second aspect, wherein at least the boundary of the heat sealing portion in the outer region along the boundary is formed. The width of the part on one side is narrow.

The bag according to a fourth aspect of the present invention is the bag according to the first aspect, wherein a cut that penetrates the front and back laminate films in the outer region, The laminate film on the front side and the laminate film on the back side are formed so as to reach the outer edge of the bag body that is not continuous, and are part of the periphery of the heat-sealed portion in the outer region and are relative to the boundary line. The part that corresponds to at least a part of the cut.

The bag according to a fifth aspect of the present invention is the bag according to the fourth aspect, wherein at least the boundary of the heat sealing portion in the outer region along the boundary is formed. The width of the part on one side is narrow.

[0020] The bag according to the sixth aspect of the present invention comprises an outer layer film comprising one or more layers, a water-soluble film, and an intermediate layer interposed between the outer layer film and the water-soluble film. Wherein the outer layer film and the intermediate layer are strongly adhered to each other, and the intermediate layer and the water-soluble film are directly contacted and peelably weakly adhered to each other. Using a laminated film, the laminated film is overlapped such that the water-soluble film is on the inside, heat-sealed at a predetermined location and welded between the water-soluble films facing the predetermined location to form a bag with one side opened. It is formed. Then, a non-heat-sealed portion surrounded by the heat-sealed portion is formed in a region outside the heat-sealed portion surrounding the storage-scheduled region in the laminated laminated film. A perforation is formed in the outer region to cut a part of the outer region. One end of a boundary between the adjacent non-heat-sealed portion and the heat-sealed portion in the outer region that remains when the part in the outer region is cut out reaches the perforation. A part of a peripheral edge of the non-heat-sealed portion remaining when the part in the outer region is cut off and continuous with the boundary line coincides with the perforation. A part of a peripheral edge of the heat seal portion remaining when the part in the outer region is cut off and continuous with the boundary line coincides with the perforation.

The bag according to a seventh aspect of the present invention is the bag according to the sixth aspect, wherein at least the boundary line of the heat seal portion remaining when the part in the outer region is cut off. The width of the portion on the one end side is narrow.

According to an eighth aspect of the present invention, there is provided a bag comprising one or more layers of an outer layer film, a water-soluble film, and an intermediate layer interposed between the outer layer film and the water-soluble film. Wherein the outer layer film and the intermediate layer are strongly adhered to each other, and the intermediate layer and the water-soluble film are directly contacted and peelably weakly adhered to each other. Using a laminated film, the laminated film is overlapped such that the water-soluble film is on the inside, heat-sealed at a predetermined location and welded between the water-soluble films facing the predetermined location to form a bag with one side opened. It is formed. Then, a cut is formed in a region outside the region where the container is to be accommodated in the laminated laminate film, penetrating only the outer layer film and the intermediate layer.

The bag according to the ninth aspect of the present invention comprises:
An outer layer film comprising a layer or a plurality of layers, a water-soluble film, a laminate film comprising an intermediate layer interposed between the outer layer film and the water-soluble film, wherein the outer layer film and the intermediate layer The layer and the layer are strongly adhered to each other, and the intermediate layer and the water-soluble film are directly in contact with each other using a weakly-bonded laminate film that is peelably peeled off. A desired container is accommodated in a bag body which is overlapped so as to be heat-sealed at a predetermined location, and a space between the water-soluble films facing the predetermined location is welded and sealed. Then, a non-heat-sealed portion and a heat-sealed portion adjacent to each other are formed in a region outside the heat-sealed portion surrounding the storage region of the stored material in the laminated laminate film. One end of a boundary between the non-heat-sealed portion in the outer region and the heat-sealed portion in the outer region, wherein the front side laminate film and the back side laminate film are not continuous. Reach the outer edge of An outer edge of the bag body, which is a part of a peripheral edge of the non-heat-sealed portion in the outer region and continuous with the boundary line, wherein the front side laminate film and the back side laminate film are not continuous. Part of A part of the periphery of the heat seal portion in the outer region and a part continuous with the boundary line is an outer edge of the bag body where the front side laminate film and the back side laminate film are not continuous. Part of.

The contents may be not only pesticides but also, for example, drugs, foods, fishing baits and the like.
Even if it is contained other than these, it may be contained in a liquid in which the water-soluble film is dissolved and used, and for example, if it is touched by a person, it may be dangerous, have a strange odor, or become dirty. Is especially effective. Further, the form of the contained material is not limited to the powder, and may be a granule or a liquid. Even if it is a liquid, the water-soluble film will not dissolve if it is, for example, an organic solvent.

A bag according to a tenth aspect of the present invention comprises:
In the bag body according to the ninth aspect, a part of the outer edge of the periphery of the heat-sealed portion and a portion opposed to the boundary line, the front side laminate film and the back side laminate film, Is a part of the outer edge of the bag body that is not continuous.

The bag-filled body according to the eleventh aspect of the present invention is
In the bag body according to the tenth aspect, at least a portion on the one end side of the boundary line among portions along the boundary line in the heat-sealed portion in the outer region is narrow.

[0027] The bag according to the twelfth aspect of the present invention comprises:
In the bag body according to the ninth aspect, in the outer region, a cut penetrating the front and back laminate films, one end of the cut is formed by the front laminate film and the back laminate film being continuous. A part of the periphery of the heat-sealed portion of the outer region, which is not part of the outer periphery of the bag body, and a part facing the boundary line coincides with at least a part of the cut. Things.

A bag according to a thirteenth aspect of the present invention comprises:
In the stuffing body according to the twelfth aspect, at least a portion on the one end side of the boundary line in a portion of the outer region along the boundary line in the heat seal portion is narrow.

The bag according to the fourteenth aspect of the present invention comprises:
An outer layer film composed of one or more layers, a water-soluble film, and a laminate film including an intermediate layer interposed between the outer layer film and the water-soluble film, wherein the outer layer film and the While the intermediate layer and the intermediate layer are strongly adhered to each other, the intermediate layer and the water-soluble film are directly in contact with each other, and a peelable and weakly-bonded laminate film is used. A desired container is accommodated in a bag sealed by heat-sealing a predetermined portion and welding a water-soluble film facing the predetermined portion so as to be sealed. Then, a non-heat-sealed portion surrounded by the heat-sealed portion is formed in a region outside the heat-sealed portion surrounding the storage region of the stored material in the laminated laminate film. A perforation is formed in the outer region to cut a part of the outer region. One end of a boundary between the adjacent non-heat-sealed portion and the heat-sealed portion in the outer region that remains when the part in the outer region is cut out reaches the perforation. A part of a peripheral edge of the non-heat-sealed portion remaining when the part in the outer region is cut off and continuous with the boundary line coincides with the perforation. A part of a peripheral edge of the heat seal portion remaining when the part in the outer region is cut off and continuous with the boundary line coincides with the perforation.

A bag according to a fifteenth aspect of the present invention comprises:
In the bag body according to the fourteenth aspect, a width of at least a portion on the one end side of the boundary line among the heat seal portions remaining when the part in the outer region is cut off is narrow.

A bag according to a sixteenth aspect of the present invention comprises:
An outer layer film composed of one or more layers, a water-soluble film, and a laminate film including an intermediate layer interposed between the outer layer film and the water-soluble film, wherein the outer layer film and the While the intermediate layer and the intermediate layer are strongly adhered to each other, the intermediate layer and the water-soluble film are directly in contact with each other, and a peelable and weakly-bonded laminate film is used. A desired container is accommodated in a bag sealed by heat-sealing a predetermined portion and welding a water-soluble film facing the predetermined portion so as to be sealed. Then, a cut is formed in a region outside the storage region of the storage item in the laminated laminate film, penetrating only the outer layer film and the intermediate layer.

The peeling method according to the seventeenth aspect of the present invention comprises:
A peeling method for peeling the outer layer film and the intermediate layer from the bag body according to any of the ninth to thirteenth aspects, wherein the front side and the back side are laminated in the non-heat-sealed portion in the outer region. Turning or pulling the film such that a force is applied to the one end of the boundary line.

The peeling method according to the eighteenth aspect of the present invention comprises:
A peeling method for peeling the outer layer film and the intermediate layer from the bag body according to the fourteenth or fifteenth aspect, wherein the part of the outer region is cut off along the perforations, Flipping or pulling the front and back laminated films of the non-heat-sealed portion remaining when the part of the outer region is cut off so that a force is applied to the one end of the boundary line. It is a thing.

A bag according to a nineteenth aspect of the present invention is a bag comprising an outer layer film comprising one or more layers, a water-soluble film, and an intermediate layer interposed between the outer layer film and the water-soluble film. A laminate film comprising: the outer layer film and the intermediate layer are strongly adhered to each other; and the intermediate layer and the water-soluble film are directly contacted and peelably weak. A first band-shaped portion of the laminated film and a second band-shaped portion of the laminated film, using one bonded laminated film so that the laminated film forms a cylindrical body with the water-soluble film inside. Are overlapped so that the water-soluble films of the first and second strips face each other, and heat-sealed to form a gap between the water-soluble films of the first and second strips. Along with welding, heat-sealing a predetermined portion of the cylindrical body so that a storage area of the cylindrical body in which the object is to be stored is closed to the first end side of the cylindrical body. A predetermined area of the facing water-soluble film is welded, and the area to be accommodated is the second area of the cylindrical body.
It is formed in a bag shape opening from the end side. Then, one end of the boundary line between the heat-sealed portion composed of the first and second strip-shaped portions and the tubular body reaches the first end side. A non-heat-sealed portion is formed in a region outside the heat-sealed portion that is a region in the tubular body and closes the planned storage region to the first end side. The non-heat-sealing portion is formed on one side of the boundary line in contact with the boundary line or formed on both sides of the boundary line across the boundary line, and a part of a peripheral edge of the non-heat-sealing portion. Includes one end of the boundary line and forms at least a part of the first end side.

The bag according to a twentieth aspect of the present invention is the bag according to the nineteenth aspect, wherein the area to be accommodated in the outer region of the tubular body is the first region.
The heat-sealing portion is formed such that a non-heat-sealing portion whose periphery is sealed is formed between the heat-sealing portion and the non-heat-sealing portion which are closed with respect to the end side. .

The bag according to the twenty-first aspect of the present invention is the bag according to the nineteenth or twentieth aspect, wherein a part of the periphery forms at least a part of the first end side. The portion is formed in a band shape along the first end side, and the width of the non-heat-sealed portion is 5 mm or more and 5 cm or more.
It is the following. This width is more preferably 7 mm or more and 5 cm or less, and even more preferably 1 cm or more and 5 cm or less.

A bag according to a twenty-second aspect of the present invention comprises a film for an outer layer composed of one or more layers, a water-soluble film, and an intermediate layer interposed between the film for an outer layer and the water-soluble film. A laminate film comprising: the outer layer film and the intermediate layer are strongly adhered to each other; and the intermediate layer and the water-soluble film are directly contacted and peelably weak. A first band-shaped portion of the laminated film and a second band-shaped portion of the laminated film, using one bonded laminated film so that the laminated film forms a cylindrical body with the water-soluble film inside. Are overlapped and heat-sealed so that the water-soluble films of the first and second belt-shaped portions face each other, and the space between the water-soluble films of the first and second belt-shaped portions is formed. Along with welding, heat-sealing a predetermined portion of the cylindrical body so that a storage area of the cylindrical body in which the object is to be stored is closed to the first end side of the cylindrical body. A predetermined area of the facing water-soluble film is welded, and the area to be accommodated is the second area of the cylindrical body.
It is formed in a bag shape opening from the end side. A non-heat-sealed portion whose periphery is sealed is formed in a region outside the heat-sealed portion, which is a region in the cylindrical body and closes the planned storage region to the first end side. As a result, a heat seal portion is formed. The non-heat-sealed portion is formed on one side of the boundary line in contact with the boundary line, or is formed on both sides of the boundary line across the boundary line.
A perforation is formed in the outer region of the tubular body and in a region of the heat seal portion corresponding to the first and second belt-shaped portions to cut off a part thereof. The first and second band-shaped portions remaining when the part in the outer region of the cylindrical body and the region of the heat-sealed portion corresponding to the first and second band-shaped portions is cut off. One end of the boundary line between the heat seal portion made of and the cylindrical body reaches the perforation. The outer region of the tubular body, which remains when the part of the outer region in the tubular body and the region of the heat seal portion corresponding to the first and second belt-shaped portions is cut off. , A part of the periphery of the non-heat-sealed portion coincides with the perforation.

A bag according to a twenty-third aspect of the present invention is the bag according to any one of the nineteenth to twenty-second aspects, wherein the heat-sealed portion comprising the first and second belt-shaped portions has a back-adhered portion. The bag body is a back-sided bag body.

A bag body according to a twenty-fourth aspect of the present invention is the bag body according to any one of the nineteenth to twenty-third aspects, wherein the bag body is a gusset type bag body having a gusset portion.

A bag according to a twenty-fifth aspect of the present invention comprises:
An outer layer film composed of one or more layers, a water-soluble film, and a single laminated film including an intermediate layer interposed between the outer layer film and the water-soluble film, The film and the intermediate layer are strongly bonded, and the intermediate layer and the water-soluble film are in direct contact with each other using a single laminated film that is weakly releasably bonded, and the laminated film is The first band-shaped portion of the laminate film and the second band-shaped portion of the laminate film are formed into a tubular body with the water-soluble film inside, and the water-soluble films of the first and second band-shaped portions are formed. Are overlapped so as to face each other and heat-sealed to weld between the water-soluble films of the first and second belt-shaped portions, and to store the contents in the cylindrical body. A predetermined portion of the tubular body is heat-sealed to face the predetermined portion so that the container region is closed to the first end side and the second end side of the tubular body. A desired container is accommodated in a bag sealed by welding between water-soluble films. Then, one end of the boundary line between the heat-sealed portion composed of the first and second strip-shaped portions and the tubular body reaches the first end side. A non-heat-sealed portion is formed in a region outside the heat-sealed portion that is a region in the tubular body and closes the housing region with respect to the first end side. The non-heat-sealing portion is formed on one side of the boundary line in contact with the boundary line or formed on both sides of the boundary line across the boundary line, and a part of a peripheral edge of the non-heat-sealing portion. Includes one end of the boundary line and forms at least a part of the first end side.

A bag according to a twenty-sixth aspect of the present invention comprises:
In the bag body according to the twenty-fifth aspect, in the outer region of the tubular body, the heat-sealing portion and the non-heat-sealing portion that close the storage region with respect to the first end side. The heat-sealed portion is formed such that a non-heat-sealed portion whose periphery is sealed is formed therebetween.

A bag according to a twenty-seventh aspect of the present invention comprises:
In the bag according to the twenty-fifth or twenty-sixth aspect,
The non-heat-sealing portion, a part of which forms at least a part of the first end side, is formed in a band along the first end side, and the width of the non-heat-sealing portion is 5 mm or more and 5 cm or more. It is the following. This width is more preferably 7 mm or more and 5 cm or less, and 1 cm or more and 5 c or less.
More preferably, it is not more than m.

The bag according to the twenty-eighth aspect of the present invention comprises:
An outer layer film composed of one or more layers, a water-soluble film, and a single laminated film including an intermediate layer interposed between the outer layer film and the water-soluble film, The film and the intermediate layer are strongly bonded, and the intermediate layer and the water-soluble film are in direct contact with each other using a single laminated film that is weakly releasably bonded, and the laminated film is The first band-shaped portion of the laminate film and the second band-shaped portion of the laminate film are formed into a tubular body with the water-soluble film inside, and the water-soluble films of the first and second band-shaped portions are formed. Are overlapped so as to face each other and heat-sealed to weld between the water-soluble films of the first and second belt-shaped portions, and to store the contents in the cylindrical body. A predetermined portion of the tubular body is heat-sealed to face the predetermined portion so that the container region is closed to the first end side and the second end side of the tubular body. A desired container is accommodated in a bag sealed by welding between water-soluble films. Then, a non-heat-sealed portion whose periphery is sealed is formed in a region outside the heat-sealed portion, which is a region in the cylindrical body and closes the housing region with respect to the first end side. Thus, a heat seal portion is formed. The non-heat-sealed portion is formed on one side of the boundary line in contact with the boundary line, or is formed on both sides of the boundary line across the boundary line. A perforation is formed in the outer region of the tubular body and in a region of the heat seal portion corresponding to the first and second belt-shaped portions to cut off a part thereof. The first portion, which remains when the part in the outer region of the cylindrical body and the region of the heat seal portion corresponding to the first and second belt-shaped portions is cut off,
One end of a boundary between the heat seal portion including the second band portion and the cylindrical body reaches the perforation.
The outer region of the tubular body, which remains when the part of the outer region in the tubular body and the region of the heat seal portion corresponding to the first and second belt-shaped portions is cut off. , A part of the periphery of the non-heat-sealed portion coincides with the perforation.

A bag pack according to the twenty-ninth aspect of the present invention is
In the bag-packed body according to any one of the twenty-fifth to twenty-eighth aspects, the heat-sealed portion including the first and second belt-shaped portions constitutes a back-attached portion, and the bag is a back-attached type bag. There is something.

A bag according to a thirtieth aspect of the present invention comprises:
The bag body according to any one of the twenty-fifth to twenty-ninth aspects, wherein the bag body is a gusset-type bag body having a gore portion.

The peeling method according to the thirty-first aspect of the present invention comprises:
A peeling method for peeling the outer layer film and the intermediate layer from the bag body according to any one of the twenty-fifth to twenty-seventh aspects, wherein a part of a peripheral edge is applied so that a force is applied to the one end of the boundary line. Pulling the laminated film on both sides of the boundary line in the non-heat-sealed portion forming at least a part of the first end side, or turning over the laminated film overlapping each other in the non-heat-sealed portion. is there.

The peeling method according to the thirty-second aspect of the present invention comprises:
A peeling method for peeling the outer layer film and the intermediate layer from the bag body according to the twenty-eighth aspect, wherein the outer region in the tubular body along the perforation and the first region corresponding thereto are provided. Cutting off the part in the region of the heat seal portion including the second band-shaped portion, and the outer region in the cylindrical body and the portion corresponding to the outer region so that a force is applied to the one end of the boundary line. Laminate on both sides of the boundary line in the non-heat-sealed portion in the outer region of the tubular body, which remains when the part in the region of the heat-sealed portion consisting of the first and second belt-shaped portions is cut off. Pulling the film or turning over the laminated films that overlap each other at the non-heat-sealed portion.

Here, the laminate film used in the present invention will be described. The intermediate layer may be an intermediate layer containing a high-pressure polyethylene oxidized to a desired extent on at least the surface of the water-soluble film. In this case, the intermediate layer may include an ethylene / α-olefin copolymer elastomer mixed with the high-pressure polyethylene. The water-soluble film may be made of one or more of vinyl acetate-based resin containing polyvinyl alcohol and vinyl acetate, polyacrylamide, polyethylene oxide, and polyvinylpyrrolidone. For the outermost layer of the outer layer film, for example, a material capable of heat-bonding high-pressure polyethylene (a material capable of strong adhesion of molten high-pressure polyethylene) may be used. Strong adhesion can be achieved between and. As such an outer layer film, for example, various outer layer films used in the above-described conventional laminated film can be adopted. Specifically, as the film for the outer layer, for example, (1) a polyester film alone,
(2) Paper alone, (3) Heat-bonded polyester film on paper (paper is the intermediate layer side), (4) Polyester film, adhesive layer, aluminum foil layer, adhesive layer, polyester Films laminated in this order and dry-laminated with each of the adhesive layers, (5) aluminum vapor-deposited polyester film (aluminum vapor-deposited polyester film), adhesive layer, and polyester film are laminated in this order and adhered. It is possible to employ a material that is dry laminated with an agent layer (a polyester film is used as the intermediate layer side), or the like. The oxidation of the high-pressure polyethylene is performed, for example, by heating the high-pressure polyethylene to a high temperature (for example, bringing the high-pressure polyethylene into a molten state), and oxidizing with oxygen in the air promoted by the high temperature (this oxidation is herein referred to as oxidation). This may be thermal oxidation), oxidation forcibly performed by spraying ozone or the like (in the present invention, this oxidation is referred to as forced oxidation), or oxidation by both thermal oxidation and forced oxidation. It may be. For example, in the case of thermal oxidation, the amount of oxidation can be adjusted by changing the temperature of high-pressure polyethylene, and in the case of forced oxidation, the amount of oxidation can be adjusted by changing the concentration of ozone sprayed. However, the intermediate layer may be, for example, an adhesive layer instead of the intermediate layer containing high-pressure polyethylene as described above in which at least the surface on the water-soluble film side is oxidized to a desired degree.

The first to eighth and nineteenth to twenty-fourth
The bag body according to the aspect is open on one side, and is generally supplied from a bag manufacturer or the like to a container manufacturer or the like in the bag supply method described above.
The bag-packed body according to the ninth to sixteenth and twenty-fifth to thirty-fifth aspects contains a desired container in a completely sealed bag, and the container is at hand of the user. In their final form to arrive, they are substantially identical.
Therefore, the first to eighth and nineteenth to twenty-fourth
When the bag according to the aspect of the present invention reaches the user of the stored item, it becomes the package according to the ninth to sixteenth and twenty-fifth to thirty aspects. In addition, the stuffed bags according to the ninth to sixteenth and twenty-fifth to thirty aspects are manufactured using the bags according to the first to eighth and nineteenth to twenty-fourth aspects in accordance with the above-described bag supply method. May be used, or may be manufactured according to the automatic packaging method described above.

The first to sixteenth and twenty-fifth to third
In the laminated film used in the bag body and the bag stuffed body according to the aspect of Embodiment 0, the outer layer film and the intermediate layer are strongly adhered to each other, and the intermediate layer and the water-soluble film are directly in contact with each other and peeled off. Since it is as weakly adhered as possible, the bag of the bag-filled body using this laminated film is strongly bonded to the outer layer film and the intermediate layer acting as an outer bag. ") And a water-soluble film acting as an inner bag, so that the outer bag film and the water-soluble film are peelably weakly bonded to each other. Therefore, the user of the stored product can obtain the stored product stored in the water-soluble film inner bag by peeling only the outer bag film in the same manner as the inner bag and the outer bag described above. It is possible to prevent the contents such as pesticides from rolling up, and to remove the contents from the inner bag, put it in a tank or the like, and just put water and dilute it (this makes it possible to form a water-soluble film The inner bag dissolves)
The human body is not harmed and safety can be ensured, and the handling is extremely easy. When accommodating the contained items, since the laminated film used in the present invention can be handled in the same manner as the conventional laminated film, existing equipment such as automatic machines can be used as it is. Further, unlike the method of the inner bag and the outer bag described above, since the inner bag is not manufactured separately, the manufacturing cost is not so much required.

In the case where the outer bag film is peeled off when using the container contained in the bag-packed body according to the ninth to thirteenth aspects, the user of the container needs to remove the outer bag film.
As in the above aspect, the front and back laminated films in the non-heat-sealed portion of the outer region may be turned or pulled so that a force is applied to the one end of the boundary line. As a result, in the case of turning over, since the water-soluble film has elasticity and the water-soluble films of the front and back laminate films in the heat seal portion bordering the boundary line are welded to each other, A portion near the one end of the boundary line in the conductive film moves toward the near side, whereas a portion near the one end of the boundary line of the outer bag film (the outer layer film and the intermediate layer) of the front and back laminate films. Turns outward. For this reason, a gap is formed between the water-soluble film and the outer bag film from near one end of the boundary line. Further, when pulled, since the amount of elongation of the water-soluble film is larger than the amount of elongation of the outer bag film, the portion near the one end of the boundary line between the water-soluble film and the outer bag film. A gap is created. Therefore, the outer bag film can be easily peeled by using these gaps as a trigger for peeling the outer bag film.

As in the tenth or twelfth aspect, a part of the outer region, which is a part of the periphery of the heat seal portion and which is opposed to the boundary line, is formed by the front side laminate film and the back side. The laminated film does not form a part of the outer edge of the bag body that is not continuous, or, if it is made to coincide with at least a part of the cut, the non-heat-sealed portion in the outer region. By increasing the amount of turning or pulling the front and back laminated films, the gap expands to the corners of the non-heat-sealed portion, so that the outer bag film can be more easily peeled off. it can. In this case, as in the eleventh and thirteenth aspects, the width of at least a portion on the one end side of the boundary line among the portions along the boundary line in the heat seal portion in the outer region is narrow. By doing so, even if the amount of turning or pulling is small, the gap expands to the corner of the non-heat-sealed portion, so that the outer bag film can be more easily peeled off.

In the case where the outer bag film is peeled off when using the contents accommodated in the bag-packed body according to the fourteenth and fifteenth aspects, the user of the accommodation may use the same method as in the eighteenth aspect. First, the part of the outer region is cut off along the perforations. Thereby, the ninth to first states
It is in the same state as the bag body according to the third aspect. Therefore, thereafter, as in the eighteenth aspect, the front and back side laminated films in the non-heat-sealed portion remaining when the part in the outer region is cut off are pressed by the one end of the boundary line. When the film is turned or pulled so as to add water, a gap is formed between the water-soluble film and the outer bag film from near one end of the boundary line. Therefore, the outer bag film can be easily peeled by using this gap as a trigger for peeling the outer bag film. In the case of the fourteenth and fifteenth aspects, the non-heat-sealed portion is surrounded by the heat-sealed portion, and the water-soluble film of the non-heat-sealed portion does not open to the outside except for the perforated portion. In addition, there is no possibility that the water-soluble film in the non-heat-sealed portion is deteriorated by the external environment.

In the case where the outer bag film is peeled off when using the container contained in the bag package according to the sixteenth aspect, the user of the container removes the bag along the cut. Bend. As a result, the outer bag film separates from the water-soluble film and floats at the portion along the cut. Accordingly, the outer bag film can be easily peeled by using the raised portion as a trigger for peeling the outer bag film.

In the case where the outer bag film is peeled off when using the packaged product contained in the bag-packed body according to the twenty-fifth to twenty-seventh aspects, the user of the packaged product is required to remove the outer bag film.
The laminate on both sides of the boundary line in the non-heat-sealed portion in which a part of the periphery forms at least a part of the first end side so that a force is applied to the one end of the boundary line The film may be pulled or the laminated films overlapping each other in the non-heat-sealed portion may be turned. As a result, the ninth to thirteenth
Similar to the case of the bag-filled body according to the aspect (1), a gap is formed between the water-soluble film and the outer bag film in the portion near one end of the boundary line. Therefore, the outer bag film can be easily peeled by using these gaps as a trigger for peeling the outer bag film.

In the case where the outer bag film is peeled off when using the contents accommodated in the bag-packed body according to the twenty-eighth and twenty-ninth aspects, the user of the accommodation is required to perform the operation as in the thirty-second aspect. First, along the perforation, the outer region of the tubular body and the part of the heat seal portion corresponding to the first and second belt-shaped portions are cut off. As a result, the state becomes the same as that of the bag body according to the twenty-fifth to twenty-seventh aspects. So after that,
Like the bag-packed body according to the twenty-fifth to twenty-seventh aspects,
The outer bag film can be easily peeled off.

In the twentieth and twenty-sixth embodiments, the area to be accommodated is at least double-closed to the first end side of the cylindrical body by the heat sealing portion. . For this reason, even if the water-soluble film in the non-heat-sealed portion located closest to the first end side is deteriorated due to the external environment, the influence does not extend to the portion to be accommodated.

Further, as in the twenty-first and twenty-seventh aspects, the non-heat-sealed portion, in which a part of the periphery forms at least a part of the first end side, extends along the first end side. When formed in a strip shape, if the width of the non-heat-sealed portion is set to 5 mm or more, the laminate film of the non-heat-sealed portion can be easily pinched by hand, so that the outer bag film can be more easily peeled off. Can be done to
preferable. However, if the width of the non-heat-sealed portion is too wide, the portion that does not contribute to the storage of the storage object is unnecessarily increased.
cm or less.

Further, the bag body and the bag stuffed body according to the first to sixteenth aspects may be constituted by using two laminated films in which the front and back laminated films are separated from each other. It may be configured by using one laminated film. The first
Each of the bags and the package according to the ninth to thirtieth aspects is configured using one laminated film. 1
When using two laminated films, two
Many of the sides of the bag body and the packaged body are bent sides as compared with the case where a configuration is made using a single laminated film. In a side part where the laminated film on the front side and the back side is not continuous because it is not a bent side, the outer bag film is liable to be inadvertently peeled off because a force is applied to the side part, or the side part is broken or wrinkled. On the other hand, on the bent side,
There is no possibility of such careless peeling of the outer bag film. Therefore, a bag and a bag packed using one laminated film are less likely to have an outer bag film during transportation than a bag and a bag packed using two laminated films. This is preferable because the possibility of peeling off is reduced. When the bag body and the bag body are formed by using one laminated film, the back body type bag body and the bag body are not the back body type as in the twenty-third and twenty-ninth aspects. Compared to bags and bag-packs,
Since the number of bending sides increases and the side where the laminated films on the front and back sides are not continuous passes through, the possibility of inadvertent peeling of the outer bag film during transportation or the like is further reduced.

[0060]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below.

FIG. 1 is a cross-sectional view schematically showing one example of a laminate film used in the present invention.

As shown in FIG. 1, this laminated film is an outer layer film 20, a water-soluble film 6, and an intermediate layer 5 interposed between the outer layer film 20 and the water-soluble film 6. At least the surface on the side of the water-soluble film 6 is composed of an intermediate layer 5 containing high-pressure polyethylene oxidized to a desired degree. Then, the outer layer film 20 and the intermediate layer 5 are strongly bonded. The intermediate layer 5 and the water-soluble film 6 are in direct contact with each other and are weakly adhered to each other in a peelable manner. In addition, here, a film including the outer layer film 20 and the intermediate layer 5 is an outer bag film 60.
That.

In this embodiment, the outer layer film 20 is formed by a dry lamination consisting of a polyester film 1, an adhesive layer 2, and an aluminum-evaporated polyester film 3, and an adhesion between the aluminum-evaporated polyester film 3 and the intermediate layer 5. And an anchor coat agent layer 4 for improving the property.

Specifically, as the polyester film 1, a product called “Embred PET”, which is PET ^{# 12} and manufactured by Unitika Ltd. was used. As the aluminum-evaporated polyester film 3, a product called "MLPET-C" manufactured by Tocello Co., Ltd., which is MLPET ^{# 12} , was used.

The intermediate layer 15 is made of only a product called "L178" manufactured by Showa Denko KK, which is LDPE (high-pressure low-density lowden polyethylene), which is a kind of high-pressure polyethylene, or ethylene-α A layer having a thickness of 20 μm was formed by extrusion lamination using a material obtained by mixing products called “Tuffmer”, which is an olefin copolymer elastomer manufactured by Mitsui Petrochemical Industries, Ltd., in various ratios as described below.

As the water-soluble film 6, a polyvinyl alcohol film manufactured by Kuraray Co., Ltd. was used.

Actually, as described later, a plurality of kinds of laminated films having such a configuration were produced by changing a part of predetermined production conditions and only a material of the intermediate layer 5. The manufacturing method was as follows. Note that FIG.
FIG. 2 is a view schematically showing a part of the manufacturing process.

First, "Embred PET" (polyester film 1) and "MLPET-C" (aluminum-deposited polyester film 3) were dry-laminated with an adhesive 2 to prepare a base film 10. Then, as shown in FIG. 2, it is guided between the pressure roller 32 and the cooling roller 33 of the laminating machine 30 via the guide roller 31 of the laminating machine 30. The base film 10 is made of “M
LPET-C "(aluminized polyester film 3)
2 is arranged as an upper side in FIG. 2 and an anchor coating agent 4
Has already been applied to form the outer layer film 20. On the other hand, a polyvinyl alcohol film (water-soluble film 6) manufactured by Kuraray Co., Ltd. is guided between the pressure roller 32 and the cooling roller 33 from the side opposite to the outer layer film 20 via the guide roller 34 of the laminating machine 30. . At the same time, a molten intermediate layer material (a material to become the intermediate layer 5) described later is extruded between the outer layer film 20 and the polyvinyl alcohol film 6 from above the position between the pressure roller 32 and the cooling roller 33. It is extruded into a film by the machine 40. As a result, the outer layer film 20, the film-like intermediate layer material, and the polyvinyl alcohol 6 are cooled while being pressed by the pressure roller 32 and the cooling roller 33, become the above-described laminated film shown in FIG. Although not shown in the drawing, it is wound into a roll.

As the extruder 40, L / D = 32
Then, one having D = 90 mmφ was used. Here, L represents the length of the screw, and D represents the diameter of the screw. The take-up speed of the laminating machine 30 was 100 m / min.

Then, the intermediate layer material (the material to be the intermediate layer 5) is changed to four types of A, B, C, and D, and the extruder 30 for the intermediate layer material for each type.
The temperature before extrusion was 320 ° C, 325 ° C, 330 ° C.
The three temperatures of ３C were set respectively, and the other conditions were completely the same, and a total of eight kinds of laminated films having the structure shown in FIG. 1 were manufactured.

Here, the intermediate layer material A is 100% by weight of “L178” (high pressure polyethylene), and the intermediate layer material B is 97% by weight of “L178” and 3% by weight of “Tuffmer”.
(Ethylene / α-olefin copolymer elastomer), the intermediate layer material C was a mixture of 95% by weight of “L178” and 5% by weight of “tuffmer”, and the intermediate layer material C was 9%.
It is a mixture of 0% by weight of "L178" and 10% by weight of "Tuffmer".

The peel strength (adhesive strength or adhesive strength) between the water-soluble film 6 and the film composed of the outer layer film 20 and the intermediate layer 5 of the eight kinds of laminated films thus obtained is shown in the following table. As shown in FIG. The peel strength was measured using a horizontal tensile tester manufactured by Tester Sangyo Co., Ltd. under the conditions of 180 ° peeling at a width of 15 mm.
The measurement was performed according to JIS P8113. In addition, for each type of laminated film, several tens of pieces were cut out from each part, and the respective peel strengths were measured. Table 1 shows the range of measured values obtained for each piece for each type of laminated film.

[0073]

[Table 1]

Table 1 shows that the peel strength is changed by changing the mixing amount of the ethylene / α-olefin copolymer elastomer with the high-pressure polyethylene in the mid layer 5. Also, it can be seen that the higher the temperature of the intermediate layer material, the higher the peel strength. This means that it is obvious that the higher the temperature, the higher the oxidation amount of the high-pressure polyethylene due to the thermal oxidation. . Further, in the range of this data, a peel strength of 0.2 to 40.3 g / 15 mm was obtained as a whole. In the present specification, the adhesive strength of the weak adhesive is not limited to such a range.

Further, even when the outer bag film 60 composed of the outer layer film 20 and the intermediate layer 5 is peeled off from the water-soluble film 6, it has been confirmed that the components of the intermediate layer 5 remain in the water-soluble film 6. Did not.

With respect to the sealed bag made of the intermediate material layer A using the laminated film manufactured at 330 ° C., even after 48 hours under normal temperature and humidity 90%, 3 at normal temperature and humidity of 30%
Even after a lapse of weeks, no change was observed in the peel strength in any case.

Since the peel strength can be increased by increasing the oxidation amount of the high-pressure polyethylene, when a higher peel strength is required, the temperature of the intermediate layer material is further increased, and not only the thermal oxidation, Forced oxidation may be performed by, for example, spraying ozone on the molten intermediate layer material.

In this case, for example, as shown in FIG. 3, a corona treatment device 50 is installed, and the ozone discharged from the corona treatment device 50 is converted into a film-like intermediate layer material extruded from the extruder 40. What is necessary is just to spray on the surface of the water-soluble film 6 side. In this example, since ozone is generated using the corona treatment device 50, corona discharge is necessary for ozone generation. Therefore, the water-soluble film 6 is subjected to corona treatment by the corona treatment device 50 before pressure bonding. . In this case, even if the surface of the water-soluble film 6 is subjected to corona treatment, it is unlikely that the chemical composition of the water-soluble film 6 will change, but the surface physically changes (for example, the surface becomes rough). ), It is considered that the adhesive force between the water-soluble film 6 and the intermediate layer 5 can be adjusted. However, without using the corona treatment device 50, ozone is blown onto the surface of the water-soluble film 6 of the film-like intermediate layer material extruded from the extruder 40 using an ozone generator (not shown). Is also good.

The laminated film used in the present invention is not limited to the laminated film shown in FIG. 1. For example, an adhesive layer can be used as the intermediate layer. In this case, by appropriately selecting the material of the most intermediate layer side portion of the outer layer film and the material of the intermediate layer, strong adhesion between the outer layer film and the intermediate layer, the intermediate layer and the water-soluble film The spaces can be directly contacted with each other so that they can be peeled off and weakly adhered.

Next, before describing the bag according to each embodiment of the present invention, a basic example of peeling of the outer bag film 60 composed of the outer layer film 20 and the intermediate layer 5 in the bag pack according to the present invention will be described. One principle will be described with reference to FIG.

FIG. 4 (a) is a plan view of the laminated film shown in FIG. 1 overlaid with the water-soluble film 6 inside, and a part thereof heat-sealed as viewed from the front side. FIG. 4B is a cross-sectional view of X1-
It is an X1 'arrow line view. 4 (c) and 4 (d) are views showing the peeling process of the outer bag film 60, respectively, and FIG.
It corresponds to.

As shown in FIGS. 4A and 4B, a heat seal portion 100 and a non-heat seal portion 101 are adjacent to each other with a boundary line 102 as a boundary. In the heat-sealed portion 100, the water-soluble films 6 on the front and back sides facing each other are welded to each other. In the upper side of FIG. 4A, the front laminated film and the rear laminated film are not continuous. That is, the upper side in FIG. 4A is not a bending line of the laminate film. A point A, which is one end of the boundary line 102, reaches the upper side. In the example shown in FIG. 4, the length of the upper side of the heat seal portion 100, that is,
The width of the portion of the heat seal portion 100 along the boundary line 102 (the length of the upper side of the heat seal portion 100 in FIG. 4A) is wide.

From the laminated films in a state of being superimposed as shown in FIGS. 4 (a) and 4 (b),
The outer bag film 60 can be easily peeled off as shown in FIG. That is, when the front and back laminate films in the non-heat-sealed portion 101 are turned so that a force is applied to the point A, first, the outer bag film 60 is brought into the state of FIG. FIG.
As shown in (d), while the portion at point A of the water-soluble film 6 moves to the near side (the lower side in FIG. 4D), the outer bag film 60 of the laminated film on the front and back sides. The portion near the boundary line 102 is turned outward. this is,
This is because the water-soluble film 6 has elasticity and the water-soluble films 6 of the front and back laminated films in the heat-sealed portion 100 with the boundary line 102 as a boundary are welded to each other. Therefore, as shown in FIG. 4D, a gap 103 is formed between the water-soluble film 6 and the outer bag film 60 from the vicinity of the point A. For this reason,
By utilizing this gap 103 as a trigger for peeling the outer bag film 60, the outer bag film 60 can be easily peeled.

FIGS. 5A to 5D show FIGS. 4A to 4D.
Are the same as those in FIG. 4, and the same or corresponding elements as those in FIG. In the case of FIG. 5, as shown in FIG.
The left side of the heat seal portion 100 is an end side, and the laminate film on the front side and the laminate film on the back side are not continuous at this left side as well. Then, the length of the upper side of the heat seal portion 100, that is, the width of the portion along the boundary line 102 in the heat seal portion 100 (the length of the upper side of the heat seal portion 100 in FIG. 4A) is reduced. ing. Also in this example, similarly to the example shown in FIG. 4 described above, when the front and back laminated films in the non-heat-sealed portion 101 are turned so that a force is applied to point A, the state shown in FIG. 5 (b)
State. However, in the case shown in FIG.
As shown in FIG. 5C, the gap 103 reaches the left side of the heat seal portion 100 in FIG. 5A and expands to the corner, so that the outer bag film 60 can be more easily peeled off. In addition, in the case shown in FIG. 5, since the length of the upper side of the heat-sealed portion 100 is short, the gap 103 reaches the left side of the heat-sealed portion 100 even if the turning amount is small. It can be more easily peeled off.

The outer bag film 60 composed of the outer layer film 20 and the intermediate layer 5 in the bag package according to the present invention.
The other principle of the peeling will be described with reference to FIG.

FIG. 12A shows the heat-sealed portion 100 of the laminated film shown in FIG.
Front and back laminated films 101a, 101b
1 is a perspective view showing a state in which both sides of the boundary line 102 are opened. FIG. 12B is a diagram illustrating the X4-X in FIG.
It is a 4 'arrow view. FIGS. 12C and 12D are diagrams showing the peeling process of the outer bag film 60, respectively.
This corresponds to (b). Note that, in FIG. 12, the same or corresponding elements as those in FIG. 5 are denoted by the same reference numerals, and redundant description will be omitted.

The outer bag film 60 can be easily peeled from the laminated film in the state shown in FIGS. 12A and 12B as shown in FIGS. 12C and 12D. That is, when the laminate films 101a and 101b on both sides of the boundary line 102 are pulled to both sides so that a force is applied to the point A, the outer bag film 60 peels off near the point A as shown in FIG. Film 6 and outer bag film 60
A gap 103 is formed between and. This is because the amount of elongation of the water-soluble film 6 is larger than the amount of elongation of the outer bag film 60, and the water-soluble films 6 of the front and back laminated films in the heat seal portion 100 with the boundary line 102 as a boundary are welded to each other. It depends. Therefore, the outer bag film 60 can be easily peeled off by using the gap 103 as a trigger for peeling the outer bag film 60. In the example shown in FIG. 12, since the width of the heat-sealed portion 100 (the length in the vertical direction in FIG. 12B) is narrow, the state shown in FIG. As described above, the gap 103 expands to the corner of the heat seal portion 100.
However, the width of the heat seal portion 100 does not necessarily have to be narrow.

The outer bag film 60 composed of the outer layer film 20 and the intermediate layer 5 in the bag package according to the present invention.
Still another principle of the peeling will be described with reference to FIG.

FIG. 6 (a) is a plan view of the laminated film shown in FIG. 1 overlaid with the water-soluble film 6 inside, and a part thereof heat-sealed as viewed from the front side. FIG. 6B is a view illustrating the state of X3- in FIG.
It is a X3 'arrow view. FIG. 6C shows the outer bag film 60.
FIG. 7 is a view showing a peeling process of the slab, and corresponds to FIG. FIG. 6D is a diagram showing another example of the cut 111, and is a plan view corresponding to FIG. 6A.

As shown in FIGS. 6 (a) and 6 (b), in the heat-sealed portion 100, a linear cut 111 penetrating only the outer bag film 60 of the front laminated film.
Are formed. Such a cut 111 can be formed, for example, by pressing a blade having the same height as the thickness of the outer bag film 60.

As shown in FIG. 6 (c), the outer bag film 60 can be easily peeled from the laminated films which are superimposed as shown in FIGS. 6 (a) and 6 (b). That is, as shown in FIG.
It may be bent along 1. As a result, the break 111
The outer bag film 60 is separated from the water-soluble film 6 and floats up in the portion along the line. Therefore,
By using the raised portion as a trigger for peeling the outer bag film 60, the outer bag film 60 is removed.
Can be easily peeled off.

In the examples shown in FIGS. 6A to 6C, the cuts 111 are formed in a straight line, but are formed in a U-shape (or a U-shape) as shown in FIG. It may be formed. In this case, the outer bag film 60 can be peeled off like a tongue. Further, in the example shown in FIGS. 6A to 6C, the cut 111 is formed in the heat-sealed portion, but may be formed in the non-heat-sealed portion (not shown). In addition, when there is no place where the front side laminate film and the back side laminate film are continuous with the bending line, it is not shown in the drawing, but there is also a cut penetrating only the outer bag film 60 of the back side laminate film. It may be formed.

Next, an example of a bag constituted by employing the above-described peeling principle using the laminate film shown in FIG. 1 will be described with reference to FIGS.

FIGS. 7 to 11 each use the laminated film shown in FIG. 1, superimpose the laminated films so that the water-soluble film 6 is on the inside, heat-seal a predetermined location, and face the predetermined location. An example of a bag formed by welding between water-soluble films 6 and forming a bag shape with one side open is shown. In addition, these bags are
It is configured by laminating two laminated films in which the front and rear laminated films are separated from each other. Of course, one laminated film may be folded and overlapped. In this case, the bending line is determined to be a predetermined location (for example, the left side or the right side in the bag shown in FIG. 7A described later). Further, the bags shown in FIGS. 7 to 11 are all examples of so-called three-side seal bags, but the form of the bag according to the present invention is not limited to such a form.

In the bag shown in FIG. 7A, portions 201 to 204 along the left side and the right side, and a band-like portion 205 parallel to the upper side at a predetermined interval from the upper side are heat-sealed, and the lower side is opened. ing. Heat sealing part 202,2
A portion surrounded by a portion 206 along the lower side, which is heat-sealed after the contents 04, 205 and the contents are stored from the opening on the lower side, is a planned storage area 207. Therefore, the heat seal portion 205 surrounding the accommodation planned area 207
Non-heat-sealed portions 2 adjacent to each other
08 and heat seal portions 201 and 203 are formed. One end (points B and C) of the boundary between the non-heat-sealed portion 208 in the outer region and the heat-sealed portions 201 and 203 in the outer region is formed by connecting the front laminate film and the back laminate film. The outer edge of the bag has not been reached. A part of the periphery of the non-heat-sealed portion 208 in the outer region and a part continuous with the boundary line (that is, the upper side of the non-heat-sealed portion 208) is a continuous laminate film on the front side and the laminate film on the back side. Not forming part of the outer edge of the bag. Heat sealing portions 201,
Part of the periphery of No. 03 which is continuous with the boundary line (that is, the upper side of the heat seal parts 201 and 203)
However, the laminated film on the front side and the laminated film on the back side form part of the outer edge of the bag body that is not continuous. A part of the periphery of the heat seal portions 201 and 203 and a portion facing the boundary line (that is, the left side of the heat seal portion 201 and the right side of the heat seal portion 203) are a front laminate film and a back laminate film. And a part of the outer edge of the bag body that is not continuous. In this example, the heat seal portions 201,
203 has a relatively large width in the left-right direction.

The bag body shown in FIG.
In the case of the bag supply method, the bag is manufactured by a bag manufacturer or the like and supplied to the manufacturer of the contents. Then, in the case of the bag supply method, the manufacturer of the stored material or the like may use the method shown in FIG.
After the contents are put into the bag body from the opening on the lower side shown in FIG. 7A, the portion 206 along the lower side is heat-sealed, and a bag-packed body in the final form which reaches the user of the contents is completed. In the case of the automatic packaging method, the manufacturer of the stored product stores the bag while the bag shown in FIG. 7A is formed from the laminated film shown in FIG. 1 and wound up in a roll shape. The filling of the object, and also the part 20 along the lower side
6 is performed continuously. The same applies to each bag body described below.

The bag of the bag-packed body is composed of a strongly bonded outer layer film 20 and an intermediate layer 5 (outer bag film 60) acting as an outer bag, and a water-soluble film 6 acting as an inner bag. The outer bag film 60 and the water-soluble film 6 are weakly adhered so that they can be peeled off. Therefore, the user of the contained product peels off only the outer bag film 60 to obtain the contained product in the state of being housed in the inner bag of the water-soluble film 6, similarly to the method of the inner bag and the outer bag described above. be able to.

In the package using the bag shown in FIG. 7A, the non-heat-sealed portion 208 shown in FIG.
7 corresponds to the non-heat-sealed portion 101 in FIG.
Heat seal portions 201 and 203 in (a) correspond to the heat seal portion 100 in FIG. 4, and points B and C in FIG. 7A correspond to point A in FIG. Therefore, the outer bag film 60 can be easily peeled from the bag body by the peeling method described with reference to FIG. Also, if the front and back laminate films in the non-heat-sealed portion 208 in FIG. 7A are opened as shown in FIGS. The outer bag film 60 can be easily peeled from the body.

In FIG. 7 (b), the same or corresponding elements as those in FIG. 7 (a) are denoted by the same reference numerals, and redundant description is omitted. The bag shown in FIG.
The only difference from the bag shown in (a) is that the width of the heat seal portions 201 and 202 along the left side is narrow. Therefore, in the bag body using the bag body shown in FIG.
The non-heat-sealed part 208 in FIG. 7B corresponds to the non-heat-sealed part 101 in FIG. 5, and the heat-sealed part 201 in FIG. 7B is the heat-sealed part 100 in FIG.
, And point B in FIG. 7B corresponds to point A in FIG. Therefore, the outer bag film 60 can be more easily peeled from this bag body by the peeling method described with reference to FIG. Also, if the front and back laminate films in the non-heat-sealed portion 208 in FIG. 7B are opened as shown in FIGS. The outer bag film 60 can be easily peeled from the body.

In FIG. 8A, the same or corresponding elements as those in FIG. 7A are denoted by the same reference numerals, and redundant description is omitted. The bag shown in FIG.
The difference from the bag shown in FIG. 8A is that, in the bag shown in FIG. 8A, the portion on the left side of the heat sealed portion 201 in FIG. 7A, the right side of the heat seal portion 203 in FIG. 7A is cut off to reduce the width of the heat seal portion 203. The only difference is that the cut 209 is formed. Therefore, in the package using the bag shown in FIG. 8A, the non-heat-sealed portion 208 in FIG. 8A is replaced with the non-heat-sealed portion 10 in FIG.
1 and the heat seal portions 201, 201 in FIG.
203 corresponds to the heat seal portion 100 in FIG. 5, and points B and C in FIG. 8A correspond to point A in FIG.
Therefore, according to the peeling method described with reference to FIG.
The outer bag film 60 can be more easily peeled from the bag-filled body. In this example, since the cut 209 is formed, the non-heat-sealed portion 208 can be easily turned over, which is preferable. Also, when the front and back laminated films in the non-heat-sealed portion 208 in FIG. 8A are opened as shown in FIGS.
The outer bag film 60 can be easily peeled from the bag body by the peeling method described in relation to the above.

In FIG. 8B, the same or corresponding elements as those in FIG. 7A are denoted by the same reference numerals, and redundant description will be omitted. The bag shown in FIG.
The only difference from the bag shown in FIG. 8A is that the width of the heat-sealed portions 201 and 203 is reduced in the bag shown in FIG. However, unlike the bag shown in FIG. 8A, the bag shown in FIG. 8B is not cut off. Therefore, also in the case of the bag body using the bag body shown in FIG. 8B, the peeling method described with reference to FIG.
The outer bag film 60 can be more easily peeled from the bag-filled body. Also, the laminated film on the front and back of the non-heat-sealed portion 208 in FIG.
By opening as shown in (a) and (b), the outer bag film 60 can be easily peeled from the bag body by the peeling method described with reference to FIG.

In FIG. 9 (a), the same or corresponding elements as those in FIG. 7 (a) are designated by the same reference numerals, and the duplicate description thereof will be omitted. The bag shown in FIG.
The difference from the bag shown in FIG. 9A is that, in the bag shown in FIG. 9A, the right side portions of the heat seal portion 203 and the non-heat seal portion 208 in FIG.
The only difference is that the heat seal portion 201 in (a) is cut away and the width of the heat seal portion 201 is reduced.
Therefore, in the packaged body using the bag shown in FIG. 9A, the non-heat-sealed portion 208 in FIG. 9A corresponds to the non-heat-sealed portion 101 in FIG. The heat seal portion 201 in FIG. 5 is the heat seal portion 1 in FIG.
00, and point B in FIG. 9A corresponds to point A in FIG. Therefore, the outer bag film 60 can be more easily peeled from this bag body by the peeling method described with reference to FIG. Also, if the front and back laminate films in the non-heat-sealed portion 208 in FIG. 9A are opened as shown in FIGS.
The outer bag film 60 can be easily peeled from the bag body by the peeling method described in relation to the above.

In FIG. 9 (b), the same or corresponding elements as those in FIG. 7 (a) are denoted by the same reference numerals, and redundant description is omitted. The bag shown in FIG.
The difference from the bag shown in FIG. 9A is that in the bag shown in FIG. 9B, a cut is made in the center of the non-heat-sealed portion 208 in FIG. 210 are formed, and heat seal portions 211 and 212 are formed on both left and right sides of the cut 210, and FIG.
The only difference is that the non-heat-sealed portion 208 in the middle is two non-heat-sealed portions 208a and 208b. One end of the cut 210 reaches the outer edge (that is, the upper side) of the bag body where the front side laminate film and the back side laminate film are not continuous. A part of the peripheral edge of the heat-sealed part 211 and a part facing the boundary between the heat-sealed part 211 and the non-heat-sealed part 208a (ie, the right side of the heat-sealed part 211)
It matches the break 210. Similarly, a part of the periphery of the heat seal portion 212 and the heat seal portion 212
(Ie, the left side of the heat-sealed portion 211) facing the boundary between the heat-sealed portion 208b and the non-heat-sealed portion 208b.
Corresponds to the cut 210. Heat sealing part 2
11, the width of the portion along the boundary (ie,
The length of the upper side of the heat seal portion 211 is narrow. Similarly, the width of the heat seal portion 212 along the boundary line (that is, the heat seal portion 21
2 is shorter). 9 (b), the non-heat-sealed portions 208a and 208b in FIG. 9 (b) correspond to the non-heat-sealed portion 101 in FIG. 5, and FIG. 9 (b) Heat seal portions 211 and 212 in FIG. 9 correspond to heat seal portion 100 in FIG. 5, and points D and E in FIG. 9B correspond to point A in FIG. Therefore, the outer bag film 60 can be more easily peeled from this bag body by the peeling method described with reference to FIG. Also, if the front and back laminate films in the non-heat-sealed portion 208 in FIG. 8A are opened as shown in FIGS. 12A and 12B, the bag packing is performed by the peeling method described with reference to FIG. The outer bag film 60 can be easily peeled from the body.

In the bag body shown in FIG. 10A, the portions 301 to 304 along the left side and the right side and the portion 3 along the upper side.
05 and a band-shaped portion 306 parallel to the upper side at a predetermined interval from the upper side is heat-sealed, and the lower side is open.
The portion surrounded by the heat-sealed portions 302, 304, 306 and the portion 307 along the lower side to be heat-sealed after the contents are received from the opening on the lower side is the storage area 30.
It is 8. Therefore, the heat seal portion 30
A non-heat-sealed portion 309 surrounded by 1, 303, 305, and 306 is formed in a region outside the heat-sealed portion 306 that surrounds the to-be-accommodated region 308. A perforation 310 for cutting a part of the outer region is formed in the outer region. In this example, the perforation 310 is formed in a straight line parallel to the lower side of the heat seal portion 305 at a position slightly below the lower side of the heat seal portion 305, and the left side of the heat seal portion 301 and the heat seal portion The right side of 303 has been reached. A notch 311 at the left end of the perforation 310 (that is, the heat seal portion 301) for facilitating cutting along the perforation 310.
Are formed. Further, in the vicinity of the right end of the perforation 310 (that is, the heat seal portion 303), FIG.
A cutout 312 corresponding to the cutout portion of the heat seal portion 203 described with respect to (a) is formed. The non-heat-sealing portion 309 and the heat-sealing portions 301 and 30 adjacent to each other in the outer region that remain when the upper portion of the perforation 310 in the outer region is cut off.
3 (points F and G) at the perforation 310
Has been reached. Perforations 310 in the outer region
Non-heat-sealed portion 3 remaining after cutting off the upper part of
A part of the periphery of the line 09 and continuing from the boundary line coincides with the perforation 310. A part of the peripheral edges of the heat seal portions 301 and 303 remaining when the upper part of the perforation 310 in the outer region is cut off, and a part continuous with the boundary line coincides with the perforation 310.

In the bag-filled body using the bag shown in FIG. 10A, when the outer bag film 60 is to be peeled off, first, the upper part of the perforation 310 is cut along the perforation 310. As a result, the remaining heat seal portion 301 corresponds to the heat seal portion 201 in FIG. 7A, the point F corresponds to the point B in FIG.
Is the heat-sealed portion 20 in FIGS. 7 (a) and 8 (a).
8 and the remaining heat-sealed portion 303 is shown in FIG.
8A corresponds to the heat seal portion 203, and point G corresponds to point C in FIG. 8A. Therefore, FIG.
Alternatively, as in the case of FIG. 8A, the outer bag film 60 can be easily peeled off. In the bag shown in FIG. 10A, the non-heat-sealed portion 309 is surrounded by the heat-sealed portions 301, 303, 305, and 306, and the non-heat-sealed portion 309 is opened to the outside except for the perforation 310. The non-heat-sealed part 30
There is no possibility that the water-soluble film 6 of 9 may be deteriorated by the external environment.

In the bag shown in FIG. 10B, portions 401 to 404 along the left side and the right side and a portion 4 along the upper side are provided.
05, and a band-shaped portion 406 parallel to the upper side at a predetermined interval from the upper side is heat-sealed, and the lower side is open.
A portion surrounded by the heat-sealed portions 402, 404, and 406 and a portion 407 along the lower side where the object is heat-sealed after being stored from the opening on the lower side is a storage area 40.
It is 8. Therefore, the heat seal portion 40
A non-heat-sealed portion 409 surrounded by 1, 403, 405, and 406 is formed in a region outside the heat-sealed portion 406 surrounding the to-be-accommodated region 408. The heat seal portion 401 is narrowed by cutting off the left side of the heat seal portion 401. In the outer region, a perforation 410 for cutting a part thereof is formed. In this example, the perforation 410 is formed in a straight line parallel to the lower side of the heat seal portion 405 at a position slightly below the lower side of the heat seal portion 405 on the left side,
On the right side, it is formed in a straight line parallel to the heat seal portion 406 at a position slightly above the upper side of the heat seal portion 406, and is formed in a step shape as a whole,
Left side of heat seal portion 401 and heat seal portion 4
The right side of 03 has been reached. The left end of the perforation 410 (that is, the heat seal portion 401) is
A notch 411 is formed for facilitating cutting along. One end (point H) of a boundary line between the adjacent non-heat-sealing portion 409 and the heat-sealing portion 401 in the outer region that remains when the upper portion of the perforation 410 in the outer region is cut off. 4
10 has been reached. Perforations 4 in the outer area
A part of the periphery of the non-heat-sealed part 409 remaining when the upper part of the part 10 is cut off and continuous with the above-mentioned boundary line coincides with the perforation 410. A part of the peripheral edges of the heat seal portions 401 and 403 remaining when the upper portion of the perforation 410 in the outer region is cut off, and a portion continuous with the boundary line coincides with the perforation 410.

In the bag-filled body using the bag shown in FIG. 10B, when peeling the outer bag film 60, first, the upper part of the perforation 410 is cut off along the perforation 410. As a result, the remaining heat-sealed portion 401 corresponds to the heat-sealed portion 201 in FIG. 9A, the point H corresponds to the point B in FIG.
Correspond to the heat seal portion 205 in FIG.
Therefore, as in the case of FIG. 9A, the outer bag film 60 can be easily peeled off. And FIG.
In the bag shown in (b), the non-heat-sealed portion 409 is surrounded by the heat-sealed portions 401, 403, 405, and 406. In addition, there is no possibility that the water-soluble film 6 of the non-heat-sealed portion 409 is also deteriorated by the external environment.

In the bag shown in FIG. 11A, portions 501 to 503 along the left side, the right side, and the upper side are heat-sealed, and the lower side is open. Heat seal parts 501-5
03 and a portion surrounded by a portion 504 along the lower side to be heat-sealed after being stored from the opening on the lower side is a planned storage area 505. Then, the heat seal portion 503 which is an area outside the storage area 505
The cut 50 penetrating only the outer bag film 60 on the front side
6 and a cut 5 penetrating only the outer bag film 60 on the back side
07 is formed. In this example, the cuts 506 and 50
7 is formed linearly and reaches the left side and the right side of the bag.

In the package using the bag shown in FIG. 11A, the heat-sealed portion 503 is formed as shown in FIGS. 6A and 6B.
(C) corresponds to the heat seal portion 110 in FIG.
06 and 507 are cuts 11 in FIGS. 6 (a), (b) and (c).
It corresponds to 1. Therefore, FIGS. 6 (a) and 6 (b)
The outer bag film 60 can be easily peeled from the bag body by the peeling method described in relation to (c).

In FIG. 11B, the same or corresponding elements as those in FIG. 11A are denoted by the same reference numerals, and the description thereof will not be repeated. The difference between the bag shown in FIG. 11B and the bag shown in FIG.
07 is formed in a U-shape only. Therefore, in the package using the bag shown in FIG. 11B, the heat-sealed portion 503 corresponds to the heat-sealed portion 110 in FIG.
It corresponds to the middle cut 111. Therefore, FIG.
The outer bag film 60 can be easily peeled from the bag body by the peeling method described in relation to (d).

Next, still another example of the bag body constructed by adopting the above-mentioned peeling principle using the laminate film shown in FIG. 1 will be described with reference to FIGS. 13 to 26.

FIGS. 13, 15 to 19, 21, and 2
3 and FIG. 25 each use a single laminate film shown in FIG. 1 and form a first strip-shaped portion of the laminate film and the above-described laminate so that the laminate film forms a tubular body with the water-soluble film 6 inside. The second band-shaped portion of the laminate film is overlapped with the second band-shaped portion so that the water-soluble films of the first and second band-shaped portions face each other, and heat-sealed to form a gap between the water-soluble films of the first and second band-shaped portions. And heat-sealing a predetermined portion of the cylindrical body so that the storage area of the cylindrical body in which the object is to be stored is closed to the first end side of the cylindrical body. An example of a bag body is formed in which the space between the facing water-soluble films at the predetermined location is welded, and the area to be accommodated is formed in a bag shape opened from a second end side of the tubular body.

The bag shown in FIG. 13A is similar to the bag shown in FIG.
Are formed using one rectangular laminated film (laminated film shown in FIG. 1). FIG.
FIG. 3B shows a state in which the bag shown in FIG. In FIG. 13B, the water-soluble film 6 is on the near side of the drawing, and the outer bag film 60 is on the far side of the drawing.
In the bag shown in FIG. 13A, a first strip 600a along the left side of the laminate film shown in FIG.
And the second strip 600b along the right side are overlapped and heat-sealed so that the water-soluble films of the strips 600a and 600b face each other, and the space between the water-soluble films 6 of the strips 600a and 600b is welded. And
Belt portions 600a, 600 in the laminate film
Parts other than b form a cylindrical body. In FIG. 13A, reference numeral 600 denotes a heat-sealed portion composed of strip portions 600a and 600b. In this example, the heat-sealed portion 600 is a back-attached portion, and FIG.
The bag shown in FIG. 1 is a back-attached bag. In this example, the laminate film is formed by lines 601 and 601 in FIG.
The valley is folded along the line 602 and these lines 601, 602
Correspond to the right and left sides of the bag shown in FIG. Further, in the bag body shown in FIG. 13A, the end side 60 is separated from the upper end side 603 of the tubular body by a predetermined distance W.
A band-shaped portion (heat-sealed portion) 604 parallel to 3 is heat-sealed. That is, the water-soluble film 6 of the portion 604a and the water-soluble film 6 of the portion 604b in FIG. 13B are overlapped and welded, and the water-soluble film 6 of the portion 604c and the water-soluble film 6 of the portion 604d are overlapped. And these parts 604a-6
04d constitutes the heat seal portion 604. Boundary line 605 between heat seal portion 600 and said tubular body
(Upper end, point I) reaches the end side 603.
In this example, similarly, the other end (lower end) of the boundary line 605 also reaches the lower end side 606. In the bag shown in FIG. 13B, the heat-sealed portion 604 and a band-shaped portion 607 (heat-sealed) along the end side 606 which is heat-sealed after being accommodated from the open end side 606 of the object. The belt-shaped portion 607 may be slightly spaced from the end side 606.) The region of the tubular body between the end portion 606 and the end portion 606 is the planned accommodation region 608. Therefore, the heat seal portion 604 closes the storage area 608 with respect to the end side 603. A non-heat-sealed portion 609 is formed in a region outside the heat-sealed portion 604 in the cylindrical body. In this example, the non-heat-sealed portion 609 is formed in a band shape having a width W along the end side 603. The non-heat-sealed portion 609 has the boundary line 6
05 are formed on both sides of the boundary line 605. A part of the periphery of the non-heat-sealed portion 609 (that is, the upper side of the non-heat-sealed portion 609) includes one end (point I) of the boundary line 605 and forms an end side 603.

In the bag using the bag shown in FIG.
The outer bag film 60 can be easily peeled from the bag body by the peeling method described with reference to FIG. This peeling method will be described with reference to FIG. FIG. 14A is a view as seen from the arrow X5-X5 ′ in FIG. FIG. 14B is a diagram showing a first specific peeling method, and corresponds to FIG. FIG.
FIG. 14C is a diagram showing a second specific peeling method, and corresponds to FIG. When peeling the outer bag film 60, the end side 603 is opened, and for example, as shown in FIG. 14B, the index finger 610 of the left hand and the index finger 611 of the right hand are inserted into the non-heat-sealed portion 610, and pull. As a result, a force is applied to the point I of the boundary line 600. Heat seal portion 600 in FIGS. 13 and 14
Correspond to the heat-sealed portion 100 in FIG. 12, and the laminated films on both sides of the boundary line 605 in the non-heat-sealed portion 609 are the laminated films 101a and 101.
b. Therefore, the outer bag film 60 can be easily peeled off according to the principle described with reference to FIG. When the outer bag film 60 is peeled, for example, as shown in FIG.
And the thumb 612 to pinch the laminate film on the left side of the boundary line 600 in the non-heat-sealed portion 609, and the right index finger 611 and the thumb 613 to pinch the laminate film on the right side of the boundary line 600 in the non-heat-sealed portion 609, and May be pulled. In order to perform such an operation, the non-heat-sealed portion 609 is required.
Is preferably 5 mm or more. In particular, the width W is more preferably 7 mm or more, and 1c
It is even more preferable that it is not less than m. If the width W of the non-heat-sealed portion 609 is too large, a portion that does not contribute to the storage of the stored items is unnecessarily increased. Therefore, the width of the non-heat-sealed portion 609 is preferably 5 cm or less.

In the bag shown in FIG. 13, the band portions 600a and 600b serving as the heat seal portion 600 are arranged along the left side and the right side of the laminate film. However, in FIG. May be located at a predetermined interval from the left side,
Only the band portion 600b may be located at a predetermined interval from the right side, or the band portions 600a, 600b
May be located at a predetermined interval (both intervals may be the same or different) from the left side and the right side, respectively. In this regard, the same applies to various other bags described below.

In FIG. 15, elements that are the same as elements in FIG. 13 or that correspond to elements in FIG. FIG. 15B shows a state where the bag shown in FIG. The difference between the bag shown in FIG. 15 (a) and the bag shown in FIG.
20 and 621 are only heat-sealed.
That is, the water-soluble film 6 of the band-shaped portion 620a and the water-soluble film 6 of the band-shaped portion 620b in FIG.
620b constitutes the heat seal portion 620. Further, the water-soluble film 6 of the band-shaped portion 621a and the water-soluble film 6 of the band-shaped portion 621b in FIG.
b constitutes the heat seal portion 621.

In the bag using the bag shown in FIG. 15, the outer bag film 60 can be peeled similarly to the bag using the bag shown in FIG. By the way, in the case of the above-mentioned bag supply method, when storing an object in a bag, many bags are stacked and set in the automatic filling machine. At this time, in the bag shown in FIG.
Since 2 is merely a bent side of the laminate film, it slightly rises up on both sides 601 and 602, and it is difficult to orderly stack many bags. For this reason, inconveniences such as a possibility of hindering the operation of the automatic filling machine occur. On the other hand, in the bag shown in FIG.
Since 0,621 is formed, the above-described floating does not occur, and a large number of bags can be stacked in an orderly manner, and the inconvenience does not occur.

In FIG. 16, elements that are the same as elements in FIG. 13 or that correspond to elements in FIG. FIG. 16B shows a state where the bag shown in FIG. 16A is expanded. The difference between the bag shown in FIG. 16A and the bag shown in FIG.
Sealing portion 6 for closing the end portion 603 side
The point is that the heat seal portion 630 is formed such that a non-heat seal portion 631 whose periphery is sealed between the heat seal portion 604 and the non-heat seal portion 609 is formed. In this example, as shown in FIG.
0 is formed parallel to the heat seal portion 604 at a predetermined interval from the heat seal portion 604. FIG.
(B) The water-soluble film 6 and the portion 63 of the portion 630a in FIG.
0b of the water-soluble film 6 is overlapped and welded,
The water-soluble film 6 of the portion 630c and the water-soluble film 6 of the portion 630d are overlapped and welded, and these portions 630a to 630d constitute the heat seal portion 630.

In the bag using the bag shown in FIG. 16, the outer bag film 60 can be peeled off in the same manner as in the bag using the bag shown in FIG. And FIG.
In the bag body using the bag body shown in FIG.
8 is a heat seal portion 604 with respect to the end side 603 side.
630 results in a double occlusion. For this reason,
Even if the water-soluble film 6 of the non-heat-sealed portion 603 is degraded by the external environment, there is no possibility that the influence of the water-soluble film 6 extends to the portion to be accommodated.

As shown in FIG. 16, after the articles are stored, not only the strip 607 but also the strip 632 parallel to the strip at a predetermined interval is heat-sealed.
This is preferable because the careless peeling of the outer bag film 60 from the end side 606 side is reduced. However,
It is not always necessary to heat seal the strip portion 632 either. The band portion 632 to be heat-sealed has the
It may be located at a predetermined interval from 06.
In this regard, the same applies to various other bags described in this specification.

In FIG. 17, elements that are the same as elements in FIG. 13 or that correspond to elements in FIG. FIG. 17B shows a state where the bag shown in FIG. The difference between the bag shown in FIG. 17A and the bag shown in FIG. 13 is only the following points. That is, in the bag shown in FIG.
A heat seal portion 641 is formed in a region outside the heat seal portion 604 that closes 08 to the end side 603 so that a non-heat seal portion 640 whose periphery is sealed is formed. In this example, FIG.
As shown in (a), the heat-sealed portion 641 is formed in parallel with the heat-sealed portion 604 at predetermined intervals from the end side 603 and the heat-sealed portion 604. The water-soluble film 6 of the portion 641a and the water-soluble film 6 of the portion 641b in FIG. These portions 641a to 641d are welded and constitute a heat seal portion 641. Non-heat-sealed part 640
Are formed on both sides of the boundary line 605 over the boundary line 605. Then, in the outer region and the corresponding region of the heat seal portion 600 in the cylindrical body,
A perforation 642 is formed for cutting out some of these regions. In this example, the perforation 642 is formed in a straight line parallel to the lower side of the heat seal portion 641 at a position slightly below the lower side of the heat seal portion 641. Therefore, perforations 64 in the outer region and the corresponding region of the heat seal portion 600
One end (J) of a boundary line 605 between the heat-sealed portion 600 and the tubular body that remains when the upper portion of
(Dot) has reached the perforation 642. Also, perforation 6
A part of the periphery of the non-heat-sealed portion 640 that remains when the upper portion of 42 is cut off (in this example, the upper side of the non-heat-sealed portion 640 that remains) matches the perforation 642.
In addition, the perforation 6 is formed from the lower side of the non-heat-sealed portion 640.
It is preferable that the width W ′ up to 42 is determined in the same manner as the width W in FIG.

In the bag using the bag shown in FIG.
When peeling the outer bag film 60, first, the upper part of the perforation 642 is cut off along the perforation 642.
As a result, a substantially same state as that of the bag-filled body using the bag shown in FIG. 13 is obtained, the remaining non-heat-sealed portion 640 corresponds to the non-heat-sealed portion 609 in FIG. 13, and the point J corresponds to the point I. Will be done. Therefore, perforations 64
After cutting off the upper part of 2, the outer bag film 60 can be easily peeled off in the same manner as the bag using the bag shown in FIG. 13. In the bag shown in FIG. 17, the non-heat-sealed portion 640 is not open to the outside except for the perforation 642.
There is no possibility that the water-soluble film 6 will also be deteriorated due to the external environment.

In the example shown in FIG. 17, the band-shaped portion 607 along the end side 606 is heat-sealed after the contents are accommodated. However, as shown in FIG. Similarly, the band portions 607 and 632 may be heat-sealed. In this regard, the same applies to various other bags described in this specification.
The bag shown in FIG. 18 is the same as the bag shown in FIG.

In FIGS. 19 and 20, the same or corresponding elements as those in FIG. 13 are denoted by the same reference numerals, and redundant description will be omitted. FIG. 20 shows a state where the bag shown in FIG. 19 is expanded. The bag shown in FIG.
19 is a gusset-type bag having gore portions 650 and 651. The bag shown in FIG. In the bag shown in FIG.
In order to form 0,651, the rectangular laminated film is valley-folded along lines 652 to 655 in FIG. 20 and mountain-folded along lines 656,657. FIG.
0 part 604a and part 604f, part 604b and part 604c, part 604d and part 604e, part 604
g and the portion 604l, the portion 604h and the portion 604i, and the portion 604j and the portion 604k, respectively, are overlapped and the water-soluble films 6 of the portions are welded to each other, and these portions 604a to 604l constitute the heat seal portion 604. .

In the bag using the bag shown in FIG. 19, the outer bag film 60 can be peeled similarly to the bag using the bag shown in FIG.

In FIGS. 21 and 22, elements that are the same as elements corresponding to those in FIGS. 19 and 20 are given the same reference numerals, and overlapping descriptions are omitted. FIG. 22 shows a state where the bag body shown in FIG. 21 is expanded. The bag shown in FIG. 21 differs from the bag shown in FIG. 19 only in the following points. That is, in the bag shown in FIG.
Heat seal portion 661 is formed in a region outside heat seal portion 604 that closes end portion 08 to end side 603 so that a non-heat seal portion 660 whose periphery is sealed is formed. In this example, as shown in FIG. 21, the heat seal portion 661 is formed parallel to the heat seal portion 604 at a predetermined interval from the end side 603 and the heat seal portion 604. In FIG. 22, the portions 661a and 661f, the portions 661b and 661c, the portions 661d and 661e, and the portions 66 in FIG.
1g and the portion 661l, the portion 661h and the portion 661i, and the portion 661j and the portion 661k are overlapped and the water-soluble films 6 of the portion are welded to each other, and these portions 661a to 661l constitute the heat seal portion 661. . The non-heat-sealed portion 660 is
5 are formed on both sides of the boundary line 605. A perforation 662 is formed in the outer region of the tubular body and the corresponding region of the heat seal portion 600 to cut out a part of these regions. In this example, the perforation 662 is a heat-sealed portion 6
At a position slightly below the lower side of 61, it is formed linearly in parallel with the lower side of the heat seal portion 661. Therefore, one end of the boundary line 605 between the heat seal portion 600 and the tubular body which remains when the upper portion of the perforation 662 in the outer region and the corresponding region of the heat seal portion 600 is cut off. (Point K) has reached the perforation 662. Further, a part of the periphery of the non-heat-sealed portion 660 that remains when the upper portion of the perforation 662 is cut off (in this example, the upper side of the remaining non-heat-sealed portion 660) matches the perforation 662. The width W ′ from the lower side of the non-heat-sealed portion 660 to the perforation 662 is preferably determined in the same manner as the width W in FIG.

In the bag using the bag shown in FIG. 21,
When peeling the outer bag film 60, first, the upper part of the perforation 662 is cut off along the perforation 662.
As a result, the state becomes substantially the same as the bag-packed body using the bag shown in FIG. 19, and the remaining non-heat-sealed portion 660 corresponds to the non-heat-sealed portion 609 in FIG. Will do. Therefore, perforation 66
After cutting off the upper part of 2, the outer bag film 60 can be easily peeled off in the same manner as the bag using the bag shown in FIG. 13. In the bag shown in FIG. 21, the non-heat-sealed portion 660 is not open to the outside except for the perforation 662,
There is no possibility that the water-soluble film 6 will also be deteriorated due to the external environment.

The bag shown in FIG. 23 is formed as a gusset-type bag using one rectangular laminate film shown in FIG. 24 (the laminate film shown in FIG. 1). FIG. 24 shows a state where the bag body shown in FIG. 23 is expanded. In FIG. 24, similarly to the developments described above,
The water-soluble film 6 is on the near side of the drawing, and the outer bag film 60 is on the far side of the drawing. In the bag shown in FIG. 23, a first strip 700a along the left side and a second strip 700b along the right side of the laminate film shown in FIG.
The water-soluble films of the strips 700a and 700b are overlapped and heat-sealed so as to face each other,
The band portions 700a and 700b are welded between the water-soluble films 6, and the band portions 700 in the laminated film are welded.
Parts other than a and 700b form a cylindrical body. FIG.
In FIG. 3, reference numeral 700 denotes a heat-sealed portion composed of strip portions 700a and 700b. In this example, the heat seal portion 700 is disposed on the side portion, and does not serve as the back portion. In the bag shown in FIG.
In order to form 0,721, the rectangular laminated film is valley-folded along lines 704 to 706 in FIG. In the bag shown in FIG. 23, a band-shaped portion (heat-sealed portion) 710 parallel to the end side 709 at a predetermined interval W from the upper end side 709 of the tubular body is heat-sealed. That is, the portion 710a and the portion 71 in FIG.
0j, part 710b and part 710c, part 710d and part 710i, part 710e and part 710f, part 710.
g and the portion 710h are overlapped with each other, and the water-soluble films 6 at the portion are welded to each other.
0a to 710j constitute the heat seal portion 710. Further, in the bag shown in FIG.
Band-shaped portions (heat-sealed portions) 701 to 703 along sides corresponding to 4-706 are heat-sealed. That is, the portions 701a and 701b, the portions 702a and 702b, the portions 703a and 703b in FIG.
However, the respective water-soluble films 6 are overlapped and welded to each other. The parts 701a and 701b constitute the heat seal part 701, and the parts 702a and 702 are formed.
b constitutes the heat seal portion 702, and the portion 703a,
Reference numeral 703b constitutes the heat seal portion 703. Boundary line 71 between heat seal portion 700 and said tubular body
One end (upper end, point L) of 1 reaches an end side 709. In this example, similarly, the other end (lower end) of the boundary line 711
Also reach the lower end side 712. In the bag shown in FIG. 23, the heat-sealed portion 710 and the band-shaped portion 713 along the end side 712 that is heat-sealed after being accommodated from the open end side 712 (the band-shaped portion to be heat-sealed) An area of the cylindrical body between the end portion 713 and the end side 712 may be slightly spaced from each other. Therefore, the heat seal portion 710 closes the storage area 714 with respect to the end side 709. A non-heat seal portion 715 is formed in a region outside the heat seal portion 710 in the cylindrical body. In this example, the non-heat-sealed portion 715 is formed in a band shape having a width W along the end side 709. The non-heat-sealed portion 715 is
11 is formed on one side (right side) of the boundary line 711. A portion of the periphery of the non-heat-sealed portion 715 (ie, the upper side of the non-heat-sealed portion 715)
11 and a part of an end side 709.

In the bag using the bag shown in FIG. 23,
Point L in FIG. 23 corresponds to point A in FIG. 5 and point A in FIG. 12, and the peeling method described with reference to FIG.
The outer bag film 60 can be easily peeled from this bag-packed body by the peeling method described in relation to 2.

In the bag shown in FIG. 23, the heat seal portions 700 to 703 enhance the self-sustainability and allow a large number of bags to be stacked neatly. In the bag shown in FIG. 19 and the bag shown in FIG. 21, a heat seal portion corresponding to the heat seal portions 700 to 703 may be formed.

In FIGS. 25 and 26, the same or corresponding elements as those in FIGS. 23 and 24 are denoted by the same reference numerals, and redundant description is omitted. FIG. 26 shows a state where the bag body shown in FIG. 25 is expanded. The bag shown in FIG. 25 differs from the bag shown in FIG. 23 only in the following points. That is, in the bag shown in FIG.
The heat seal portion 741 is formed in a region outside the heat seal portion 710 that is closed with respect to the 14 end side 709 so that a non-heat seal portion 740 whose periphery is sealed is formed. In this example, as shown in FIG. 26, the heat seal portion 741 is formed in parallel with the heat seal portion 710 at predetermined intervals from the end side 709 and the heat seal portion 710. FIG.
6 in the part 741a and part 741j, part 741b and part 741c, part 741d and part 741i, part 741
e and the part 741f, and the part 741g and the part 741h are superimposed on each other, and the water-soluble films 6 at the positions are welded to each other. These parts 741a to 741j constitute a heat seal part 741. The non-heat-sealed portion 740 is formed on one side (right side) of the boundary 711 in contact with the boundary 711. A perforation 742 is formed in the outer region of the tubular body and the corresponding region of the heat seal portion 700 to cut out a part of these regions. In this example, the perforation 742 is formed in a straight line parallel to the lower side of the heat seal portion 741 at a position slightly below the lower side of the heat seal portion 741. Therefore, it remains when the upper portion of the perforation 742 in the outer region and the corresponding region of the heat seal portion 700 is cut off.
A boundary line 7 between the heat seal portion 700 and the tubular body
One end (point M) of 11 reaches the perforation 742. Further, a part of the periphery of the non-heat-sealed portion 740 remaining when the upper portion of the perforation 742 is cut off (in this example, the upper side of the remaining non-heat-sealed portion 740) matches the perforation 742. The width W ′ from the lower side of the non-heat-sealed portion 740 to the perforation 742 is preferably determined in the same manner as the width W in FIG.

In a bag using the bag shown in FIG. 25,
When peeling the outer bag film 60, first, the upper part of the perforation 742 is cut off along the perforation 742.
As a result, the state is substantially the same as that of the bag using the bag shown in FIG. 23, and the remaining non-heat-sealed portion 740 corresponds to the non-heat-sealed portion 715 in FIG. Will do. Therefore, perforations 74
After cutting off the upper part of the outer bag film 2, the outer bag film 60 can be easily peeled off in the same manner as the bag body using the bag body shown in FIG. In the bag shown in FIG. 25, the non-heat-sealed portion 740 is not open to the outside except for the portion of the perforation 742.
There is no possibility that the water-soluble film 6 will also be deteriorated due to the external environment.

The embodiments of the present invention have been described above, but the present invention is not limited to these embodiments.

[0134]

As described above, according to the present invention,
It has a double structure consisting of an outer bag and an inner bag consisting of a water-soluble film, and can be manufactured using existing equipment. In addition, the outer bag film can be easily peeled when using the contents. The present invention can provide a bag body and a bag body that can be formed, and a method for peeling the bag body and the bag body.

[Brief description of drawings]

FIG. 1 is a cross-sectional view schematically showing an example of a laminate film used in the present invention.

FIG. 2 is a view schematically showing a part of a manufacturing process of the laminate film shown in FIG.

FIG. 3 is a view schematically showing a part of another manufacturing process of the laminate film shown in FIG. 1;

FIG. 4 is a view showing the principle of peeling an outer bag film according to the present invention.

FIG. 5 is a diagram showing another peeling principle of the outer bag film according to the present invention.

FIG. 6 is a diagram showing another peeling principle of the outer bag film according to the present invention.

FIG. 7 is a diagram showing a bag according to an embodiment of the present invention and a bag according to another embodiment.

FIG. 8 is a view showing a bag according to still another embodiment of the present invention.

FIG. 9 is a view showing a bag according to still another embodiment of the present invention.

FIG. 10 is a view showing a bag according to still another embodiment of the present invention.

FIG. 11 is a view showing a bag body according to still another embodiment of the present invention.

FIG. 12 is a view showing another principle of peeling the outer bag film according to the present invention.

FIG. 13 is a view showing a bag according to still another embodiment of the present invention.

FIG. 14 is a view showing a specific method of peeling an outer bag film from a bag body using the bag body shown in FIG.

FIG. 15 is a view showing a bag according to still another embodiment of the present invention.

FIG. 16 is a view showing a bag according to still another embodiment of the present invention.

FIG. 17 is a view showing a bag according to still another embodiment of the present invention.

FIG. 18 is a view showing a bag according to still another embodiment of the present invention.

FIG. 19 is a view showing a bag according to still another embodiment of the present invention.

FIG. 20 is a developed view of the bag shown in FIG. 19;

FIG. 21 is a view showing a bag body according to still another embodiment of the present invention.

FIG. 22 is a developed view of the bag shown in FIG. 21.

FIG. 23 is a view showing a bag body according to still another embodiment of the present invention.

FIG. 24 is a developed view of the bag shown in FIG. 23.

FIG. 25 is a view showing a bag according to still another embodiment of the present invention.

FIG. 26 is a developed view of the bag shown in FIG. 25.

[Explanation of symbols]

Reference Signs List 1 polyester film 2 adhesive layer 3 aluminum-evaporated polyester film 4 anchor coating agent layer 5 intermediate layer 6 water-soluble film 10 base film 20 outer layer film 30 laminating machine 31, 34, 35 guide roller 32 pressure roller 33 cooling roller 50 corona Processing machine 60 Outer bag film 100, 110, 201 to 205, 211, 212 Heat seal portion 101, 208, 208a, 208b, 309, 409
Non-heat-sealed portions 111, 506, 507 Cuts penetrating only the outer bag film 207, 308, 408, 505 Planned accommodation area 209, 210 Cuts penetrating the front and back laminated films 301-306, 401-406, 501-503 Heat Seal part 310, 410 Perforation 311, 312, 411 Notch part 600, 604, 620, 621, 630, 641 Heat seal part 600a First band part 600b Second band part 603, 606, 709, 712 Edge side 605,711 Boundary line 608,714 Planned accommodation area 609,631,640,660,715,740 Non-heat-sealed portion 642,662,742 Perforation 650,651 Gore portion 661,700,701,702 Heat-sealed portion 703 710, 41 heat-sealed portion

Claims (32)

[Claims] 1. A laminate film comprising an outer layer film comprising one or more layers, a water-soluble film, and an intermediate layer interposed between the outer layer film and the water-soluble film, While the film for the outer layer and the intermediate layer are strongly bonded, a laminate film is used in which the intermediate layer and the water-soluble film are directly in contact with each other and are weakly bonded in a peelable manner. A bag body formed in a bag shape with one side opened, wherein the water-soluble films are overlapped so as to be inside and heat-sealed at a predetermined location and welded between the water-soluble films facing the predetermined location. A non-heat-sealed portion adjacent to the non-heat-sealed portion adjacent to the non-heat-sealed portion in a region outside the heat-sealed portion surrounding the region where the stored material is to be accommodated in the laminated laminate film is placed. And the seal portion is formed, one end of the boundary line between the heat-sealed portion of the non-heat-sealed portion and the outer region of the outer areas,
The front side laminate film and the back side laminate film reach an outer edge of the bag body that is not continuous, and are part of a periphery of the non-heat-sealed portion in the outer region and are continuous with the boundary line. A part of an outer edge of the bag body in which the front side laminate film and the back side laminate film are not continuous, and a part of a peripheral edge of the heat seal portion in the outer region, wherein the boundary A part continuous with a line forms a part of an outer edge of the bag body in which the front side laminate film and the back side laminate film are not continuous. 2. A part of a peripheral edge of the heat-sealed portion in the outer region, which is opposed to the boundary line, is not continuous with the front-side laminated film and the back-side laminated film. The bag body according to claim 1, which is a part of an outer edge of the bag body. 3. The bag according to claim 2, wherein at least a portion of the heat sealing portion of the outer region along the boundary line at the one end side of the boundary line has a small width. body. 4. In the outer region, a cut penetrating through the front and back laminate films is provided, and one end of the cut is formed in the bag body where the front laminate film and the back laminate film are not continuous. A part of a periphery of the heat-sealed portion in the outer region, which part is opposed to the boundary line, is formed so as to reach an outer edge, and at least a part of the cut line is matched. The bag according to claim 1. 5. The bag according to claim 4, wherein at least a portion of the heat sealing portion of the outer region along the boundary line at the one end side of the boundary line has a small width. body. 6. A laminate film comprising an outer layer film composed of one or more layers, a water-soluble film, and an intermediate layer interposed between the outer layer film and the water-soluble film, While the film for the outer layer and the intermediate layer are strongly bonded, a laminate film is used in which the intermediate layer and the water-soluble film are directly in contact with each other and are weakly bonded in a peelable manner. A bag body formed in a bag shape with one side opened, wherein the water-soluble films are overlapped so as to be inside and heat-sealed at a predetermined location and welded between the water-soluble films facing the predetermined location. A non-heat-sealed portion surrounded by the heat-sealed portion is provided in a region outside the heat-sealed portion surrounding the region where the stored material is to be accommodated in the laminated laminate film. A non-heat seal adjacent to each other in the outer region that remains when the part in the outer region is cut off, and a perforation is formed in the outer region to cut off a portion thereof. One end of a boundary line between the portion and the heat-sealed portion reaches the perforation, and is a part of a periphery of the non-heat-sealed portion remaining when the part in the outer region is cut off, and the boundary line is formed. And a part of the periphery of the heat seal portion remaining when the part in the outer region is cut off and a part of the perimeter continuous with the boundary line is the perforation. A bag that matches the eyes. 7. The heat sealing portion remaining when the part of the outer region is cut off, wherein at least a portion on the one end side of the boundary line has a small width. Bag. 8. A laminate film comprising an outer layer film composed of one or more layers, a water-soluble film, and an intermediate layer interposed between the outer layer film and the water-soluble film, While the film for the outer layer and the intermediate layer are strongly bonded, a laminate film is used in which the intermediate layer and the water-soluble film are directly in contact with each other and are weakly bonded in a peelable manner. A bag body formed in a bag shape with one side opened, wherein the water-soluble films are overlapped so as to be inside and heat-sealed at a predetermined location and welded between the water-soluble films facing the predetermined location. A cut is formed in a region outside the region where the container is to be stored in the laminated laminate film so as to penetrate only the outer layer film and the intermediate layer. Bag, characterized in that was. 9. A laminate film comprising an outer layer film composed of one or more layers, a water-soluble film, and an intermediate layer interposed between the outer layer film and the water-soluble film, While the film for the outer layer and the intermediate layer are strongly bonded, a laminate film is used in which the intermediate layer and the water-soluble film are directly in contact with each other and are weakly bonded in a peelable manner. A water-soluble film is overlapped so that it is on the inside, a predetermined portion is heat-sealed, and a water-soluble film facing the predetermined portion is welded and sealed inside the bag body,
A non-heat-sealed portion and a heat-sealed portion adjacent to each other in a region outside a heat-sealing portion surrounding a housing region of the stacked-layer laminated film in the stacked laminated film. Is formed, one end of a boundary between the non-heat-sealed portion of the outer region and the heat-sealed portion of the outer region,
The front side laminate film and the back side laminate film reach an outer edge of the bag body that is not continuous, and are part of a periphery of the non-heat-sealed portion in the outer region and are continuous with the boundary line. A part of an outer edge of the bag body in which the front side laminate film and the back side laminate film are not continuous, and a part of a peripheral edge of the heat seal portion in the outer region, wherein the boundary A part that is continuous with a line forms a part of an outer edge of the bag body in which the front-side laminate film and the back-side laminate film are not continuous. 10. A part of a peripheral edge of the heat-sealed portion in the outer region and a part opposed to the boundary line,
The package according to claim 9, wherein the front side laminate film and the back side laminate film form part of an outer edge of the bag body that is not continuous. 11. The bag according to claim 10, wherein a width of at least a portion on the one end side of the boundary line among portions along the boundary line in the heat-sealed portion of the outer region is narrow. Stuffing. 12. The outer region has a slit that penetrates the front and back laminate films, and one end of the slit is not continuous with the front laminate film and the back laminate film. It is formed so as to reach an outer edge, and a part of a peripheral edge of the heat-sealed portion in the outer region, which is opposed to the boundary line, coincides with at least a part of the cut line. The bagged body according to claim 9. 13. The bag according to claim 12, wherein at least a portion of the heat sealing portion of the outer region along the boundary line at the one end side of the boundary line has a small width. Stuffing. 14. A laminate film comprising an outer layer film comprising one or more layers, a water-soluble film, and an intermediate layer interposed between the outer layer film and the water-soluble film, While the film for the outer layer and the intermediate layer are strongly bonded, a laminate film is used in which the intermediate layer and the water-soluble film are directly in contact with each other and are weakly bonded in a peelable manner. A desired container is accommodated in a bag body that is overlapped so that the water-soluble film is on the inside, heat-sealed at a predetermined location, and welded and sealed between the water-soluble films facing the predetermined location and sealed. A bag-filled body, which is surrounded by a heat-sealed portion in a region outside a heat-sealed portion surrounding a housing region of a stored object in the laminated laminate film. A non-heat-sealed portion is formed, and a perforation is formed in the outer region to cut off a portion thereof, and adjacent to each other in the outer region which remains when the portion in the outer region is cut off. One end of a boundary line between the corresponding non-heat-sealing portion and the heat-sealing portion reaches the perforation, and is a part of a peripheral edge of the non-heat-sealing portion remaining when the part in the outer region is cut off. A part of the periphery of the heat sealing portion remaining when the part in the outer region is cut off, and a part continuous with the boundary line is aligned with the perforation. A bag-filled body having a portion corresponding to the perforation. 15. The method according to claim 14, wherein at least a portion of the heat seal portion remaining when the part of the outer region is cut off on the one end side of the boundary line is narrow. Bagged body. 16. A laminate film comprising an outer layer film composed of one or more layers, a water-soluble film, and an intermediate layer interposed between the outer layer film and the water-soluble film, While the film for the outer layer and the intermediate layer are strongly bonded, a laminate film is used in which the intermediate layer and the water-soluble film are directly in contact with each other and are weakly bonded in a peelable manner. A desired container is accommodated in a bag body that is overlapped so that the water-soluble film is on the inside, heat-sealed at a predetermined location, and welded and sealed between the water-soluble films facing the predetermined location and sealed. In a bag body, only the outer layer film and the intermediate layer are penetrated in a region outside a storage region of a storage item in the laminated laminate film. Bagged body characterized in that cuts are formed. 17. A peeling method for peeling the outer layer film and the intermediate layer from the bag body according to claim 9, wherein the front side of the non-heat-sealed portion in the outer region. And peeling or pulling the laminate film on the back side so that a force is applied to the one end of the boundary line. 18. A peeling method for peeling the outer layer film and the intermediate layer from the bag body according to claim 14 or 15, wherein the part of the outer region is cut along the perforations. Flipping or pulling the front and back laminated films in the non-heat-sealed portion remaining when the part in the outer region is cut off so that a force is applied to the one end of the boundary line. A peeling method, comprising: 19. A single laminated film comprising an outer layer film composed of one or more layers, a water-soluble film, and an intermediate layer interposed between the outer layer film and the water-soluble film. A single laminated film in which the outer layer film and the intermediate layer are strongly adhered to each other and the intermediate layer and the water-soluble film are directly contacted and peelably weakly adhered to each other. The first and second strips of the laminate film and the second strip of the laminate film so that the laminate film forms a tubular body with the water-soluble film inside. The first water-soluble films are overlapped and heat-sealed so as to face each other.
And welding between the water-soluble films of the second band-shaped portion, and so that the storage-scheduled region of the container in the cylindrical body is closed to the first end side of the cylindrical body. A predetermined portion of the cylindrical body is heat-sealed to weld between the water-soluble films facing the predetermined portion, and the storage area is formed in a bag shape opened from a second end side of the cylindrical body. A tubular body, wherein one end of a boundary line between a heat-sealed portion composed of the first and second belt-shaped portions and the tubular body reaches the first end side, and the tubular body Wherein a non-heat-sealing portion is formed in a region outside the heat-sealing portion that closes the storage-scheduled region with respect to the first end side, and the non-heat-sealing portion is Is formed on one side of the boundary line in contact with the line Or formed on both sides of the boundary line across the boundary line, and a part of the peripheral edge of the non-heat-sealed portion includes one end of the boundary line and forms at least a part of the first end side. A bag body characterized by the following. 20. In the outer region of the cylindrical body, a periphery is formed between the heat-sealed portion and the non-heat-sealed portion that closes the storage area with respect to the first end side. 20. The bag of claim 19, wherein the heat seal portion is formed such that a sealed non-heat seal portion is formed. 21. The non-heat-sealed portion, of which a part of the periphery forms at least a part of the first end side, is formed in a band along the first end side, and the non-heat-sealed portion is The bag according to claim 19 or 20, wherein the width is 5 mm or more and 5 cm or less. 22. One laminated film comprising an outer layer film having one or more layers, a water-soluble film, and an intermediate layer interposed between the outer layer film and the water-soluble film. A single laminated film in which the outer layer film and the intermediate layer are strongly adhered to each other and the intermediate layer and the water-soluble film are directly contacted and peelably weakly adhered to each other. The first and second strips of the laminate film and the second strip of the laminate film so that the laminate film forms a tubular body with the water-soluble film inside. The first water-soluble films are overlapped and heat-sealed so as to face each other.
And welding between the water-soluble films of the second band-shaped portion, and so that the storage-scheduled region of the container in the cylindrical body is closed to the first end side of the cylindrical body. A predetermined portion of the cylindrical body is heat-sealed to weld between the water-soluble films facing the predetermined portion, and the storage area is formed in a bag shape opened from a second end side of the cylindrical body. A bag body comprising: a non-sealed area in a region outside the heat-sealing portion that is a region in the cylindrical body and that closes the storage-scheduled region with respect to the first end side. A heat seal portion is formed such that a heat seal portion is formed, and the non-heat seal portion is formed on one side of the boundary line in contact with the boundary line, or the boundary is formed across the boundary line. Formed on both sides of the line, said tube Perforations for cutting off a part of the outer region of the body and the region of the heat-sealing portion corresponding to the first and second strip-shaped portions corresponding thereto are formed, A heat-sealing portion composed of the first and second strip-shaped portions, which remains when the portion in the outer region and the region of the heat-sealing portion corresponding to the outer-region and the first and second strip-shaped portions corresponding thereto is cut off; One end of the boundary between the tubular body and the perforation reaches the perforation line, and the area of the outer side of the tubular body and the area of the heat-sealing portion including the first and second strip-shaped portions corresponding thereto A part of the peripheral edge of the non-heat-sealed part in the outer region of the tubular body that remains when the part is cut off corresponds to the perforation. Body. 23. The back-sealed portion, wherein the heat-sealed portion comprising the first and second belt-shaped portions constitutes a back-applied portion, and the bag is a back-applied type bag.
3. The bag according to any one of 2. 24. The bag according to claim 19, wherein said bag is a gusset-type bag having a gore portion. 25. One laminated film comprising an outer layer film having one or more layers, a water-soluble film, and an intermediate layer interposed between the outer layer film and the water-soluble film. A single laminated film in which the outer layer film and the intermediate layer are strongly adhered to each other and the intermediate layer and the water-soluble film are directly contacted and peelably weakly adhered to each other. The first and second strips of the laminate film and the second strip of the laminate film so that the laminate film forms a tubular body with the water-soluble film inside. The first water-soluble films are overlapped and heat-sealed so as to face each other.
And welding between the water-soluble films of the second belt-shaped portion, and the housing area of the stored object in the tubular body is located at a first end side and a second end side of the tubular body. A bag containing a desired container contained in a bag sealed by heat-sealing a predetermined portion of the cylindrical body so as to be closed and welding the water-soluble film facing the predetermined portion between the water-soluble films. One end of a boundary line between the heat-sealed portion including the first and second belt-shaped portions and the cylindrical body reaches the first end side, and a region in the cylindrical body. A non-heat-sealing portion is formed in a region outside a heat-sealing portion that closes the housing region with respect to the first end side, and the non-heat-sealing portion is in contact with the boundary line. Formed on one side of the boundary line or Formed on both sides of the boundary line, and a part of a periphery of the non-heat-sealed portion includes one end of the boundary line and forms at least a part of the first end side. Stuffed bag. 26. In the outer region of the cylindrical body, the periphery is sealed between the heat-sealed portion and the non-heat-sealed portion that closes the housing region with respect to the first end side. 26. The package according to claim 25, wherein the heat-sealed portion is formed such that a formed non-heat-sealed portion is formed. 27. The non-heat-sealed portion, of which a part of the periphery forms at least a part of the first end side, is formed in a band along the first end side, and the non-heat-sealed portion is 27. The package according to claim 25, wherein the width is 5 mm or more and 5 cm or less. 28. One laminated film comprising an outer layer film composed of one or more layers, a water-soluble film, and an intermediate layer interposed between the outer layer film and the water-soluble film. A single laminated film in which the outer layer film and the intermediate layer are strongly adhered to each other and the intermediate layer and the water-soluble film are directly contacted and peelably weakly adhered to each other. The first and second strips of the laminate film and the second strip of the laminate film so that the laminate film forms a tubular body with the water-soluble film inside. The first water-soluble films are overlapped and heat-sealed so as to face each other.
And welding between the water-soluble films of the second belt-shaped portion, and the housing area of the stored object in the tubular body is located at a first end side and a second end side of the tubular body. A bag containing a desired container contained in a bag sealed by heat-sealing a predetermined portion of the cylindrical body so as to be closed and welding the water-soluble film facing the predetermined portion between the water-soluble films. A non-heat-sealed part whose periphery is sealed in a region outside the heat-sealed part, which is a region in the tubular body and closes the housing region with respect to the first end side. Is formed, and the non-heat-sealed portion is formed on one side of the boundary line in contact with the boundary line or on both sides of the boundary line across the boundary line. Formed at the front of the tubular body A perforation is formed in an outer region and a region of the heat seal portion corresponding to the first and second belt-shaped portions to cut off a part thereof, and the outer region in the tubular body is formed. And the heat-sealed portion made of the first and second strip-shaped portions and the cylindrical shape remaining when the part is cut off in the region of the heat-sealed portion made up of the first and second strip-shaped portions corresponding thereto One end of a boundary line between the body and the body reaches the perforation, and the one side in the outer region of the tubular body and the region of the heat seal portion corresponding to the first and second belt-like portions corresponding thereto. A part of the periphery of the non-heat-sealed portion in the outer region of the cylindrical body that remains when the portion is cut off, and the part of the periphery of the non-heat-sealed portion matches the perforation. 29. The back-sealed portion, wherein the heat-sealed portion comprising the first and second band-shaped portions constitutes a back-sealed portion, and the bag is a back-sealed type bag.
8. The packaged body according to any one of 8 above. 30. The package according to claim 25, wherein the bag is a gusset-type bag having a gore portion. 31. A peeling method for peeling the outer layer film and the intermediate layer from the bag body according to any one of claims 25 to 27, wherein a force is applied to the one end of the boundary line. The step of pulling the laminate film on both sides of the boundary line in the non-heat-sealed portion where a part of the periphery forms at least a part of the first end side, or turning over the laminated film overlapping each other in the non-heat-sealed portion. A peeling method, comprising: 32. A peeling method for peeling the outer layer film and the intermediate layer from the bag body according to claim 28, wherein the outer region in the tubular body along the perforation and corresponding thereto. Cutting off the part in the region of the heat seal portion composed of the first and second belt-shaped portions, and the outer region and the outer region of the tubular body so that a force is applied to the one end of the boundary line. The boundary line in the non-heat-sealed portion in the outer region in the tubular body, which remains when the part in the region of the heat-sealed portion composed of the first and second band-shaped portions corresponding to this is cut off. Pulling the laminated film on both sides of the laminated film or turning over the laminated film overlapping each other in the non-heat-sealed portion. A peeling method characterized by the above-mentioned.