JP3122486U - Gas barrier film and multi-chamber bag - Google Patents

Abstract

[Problem] To provide a multi-chamber bag in which a drug can be clearly visually recognized from the outside, does not cause erroneous administration, has good environmental properties, and is inexpensive.
A diluent chamber 3 is connected to one end side of a medicine storage chamber 1 via a weak seal portion 2, and a mouth portion 4 is connected to the other end side of the medicine storage chamber 1 via a weak seal portion 2. It is a multi-chamber bag in which the vacant chambers 5 are continuously provided, and the drug containing chamber 1, the diluent chamber 3 and the vacant chamber 5 are made of a transparent film material, and the outside of the drug containing chamber 1 is transparent. The gas barrier film 6 is covered with a gas barrier film 6 and includes a sealant layer in which a powder of CaO and / or AlO _x is kneaded into a resin material.
[Selection] Figure 2

Description

  The present invention relates to a multi-chamber bag provided with a gas barrier film and a medicine storage chamber.

A multi-chamber bag with a weak seal between the drug storage chamber and the diluent chamber that mixes the drug with the diluent during use. An apparatus that can be accommodated in a medicine accommodating chamber without using an agent has been proposed (see, for example, Patent Document 1). In this example, although not shown, both sides of the drug storage chamber are covered with, for example, a multilayer film including an aluminum processed film so that the front aluminum processing film can be peeled off, and the diluent chamber with the mouth is stored in the drug storage chamber. It is configured to administer the diluted drug in a suspended state placed under the chamber.
Japanese Patent Laid-Open No. 11-276547

  However, as described above, when the medicine storage chamber is covered with a multilayer film including an aluminum processed film, there is a problem that the medicine cannot be visually recognized from the outside. Moreover, in order to confirm the mixing state when the drug is diluted, the work of removing the aluminum processed film on the front side is also troublesome. If the mouth portion is provided in the diluent chamber, there is a concern that a trouble may occur such that the medicine is administered without being mixed with the diluent. Furthermore, since an aluminum processed film is included, not only is it expensive, but there is also an environmental problem that it cannot be discarded as it is.

  The present invention was devised in view of such circumstances, and it is possible to clearly see gas barrier films and chemicals that are transparent, have good environmental properties, have high gas barrier properties, have few barrier film layers, and are inexpensive, An object of the present invention is to provide an inexpensive multi-chamber bag that does not cause erroneous administration and that is good for the environment and inexpensive.

(1) The gas barrier film of the present invention comprises a barrier film layer formed by vapor-depositing silica and / or alumina on polyethylene terephthalate (PET), polyvinyl alcohol (PVA) and / or ethylene / vinyl alcohol copolymer (EVOH), And a sealant layer in which a moisture absorbent is kneaded into a transparent resin material.

  Since the gas barrier film provided with such a sealant layer has a high moisture absorption capacity, for example, by coating this in a drug storage chamber, the drug can be influenced by moisture and oxygen without using a desiccant or oxygen scavenger. Can be protected from being affected. In addition, since the sealant layer is transparent, the inside of the medicine container can be seen through from the outside. When the diluent is introduced into the medicine container and mixed with the medicine, it is insoluble. Since it is possible to clearly confirm the presence or absence, etc., the occurrence of erroneous administration can be suppressed. And since the gas barrier film provided with such a sealant layer improves water vapor | steam barrier property notably, the number of layers of a barrier film layer can be decreased and it can provide at low cost.

(2) The moisture absorbent is inorganic, calcium oxide, aluminum oxide (AlO _x ), zeolite, silica gel, shochu liquor, magnesium sulfate, calcium chloride, potassium sulfate, phosphorus pentoxide, sodium carbonate, potassium carbonate, organic , Poly (meth) acrylate, carboxymethyl cellulose, polyethylene glycol, and derivatives thereof, one material selected from among the above-mentioned inorganic materials, a combination of organic materials, or a combination of the above-mentioned inorganic materials and organic materials. Any of the combinations may be used. A stable sealant layer can be formed by kneading such a moisture absorbent into the resin material.

(3) The resin material is linear low density polyethylene (LLDPE), low density polyethylene (LDPE), polypropylene (PP), ethylene / vinyl acetate copolymer (EVA), acid copolymer, acid ester copolymer, and One kind of material selected from ionomers, or a combination of the above materials may be used. A sealant film formed by kneading a powder of a moisture absorbent such as calcium oxide (CaO) and / or aluminum oxide (AlO _x ) into such a resin material has good adhesion (heat seal, adhesion, etc.). Therefore, it can be easily laminated on other film materials.

(4) The sealant layer has a two-layer or three-layer structure in which a transparent resin material not kneaded with the moisture absorbent is disposed on one side or both sides of the transparent resin material kneaded with the moisture absorbent. It may be formed. If it does in this way, a sealant layer can be protected and lamination to other film materials will become easy. In addition, when a sealant layer is made into two layers, it is preferable to make the side which touches the contents into a transparent resin (a water absorbent is not kneaded).

(5) In the multi-chamber bag of the present invention, a diluent chamber is connected to one end side of the drug storage chamber via a weak seal portion, and a mouth is connected to the other end side of the drug storage chamber via a weak seal portion. A multi-chamber bag in which vacancies having a portion are provided,
The drug storage chamber, the diluent chamber and the vacant chamber are made of a transparent film material, and the drug storage chamber is covered with a transparent gas barrier film, and the gas barrier film is formed by applying a moisture absorbent to a transparent resin material. It is characterized by having a kneaded sealant layer.

  According to such a configuration, the drug containing chamber is covered with a transparent gas barrier film having a sealant layer having a high moisture absorption capacity, so that the drug can be made of water or oxygen without using a desiccant or an oxygen scavenger. It can be protected from being affected. And since the gas barrier film is transparent, the inside of the medicine storage chamber can be seen through from the outside, the state of the stored medicine and the weak seal portion are broken, and the diluent is supplied from the diluent chamber to the medicine storage chamber. Since the presence or absence of insoluble foreign matter and the like can be clearly confirmed when is introduced and mixed with a drug, the occurrence of erroneous administration can be suppressed.

  In addition, since the drug storage chamber is covered with a transparent gas barrier film, contamination of foreign matters can be clearly detected in the manufacturing process. For example, if a double-sided printed label is attached to one side of the diluent chamber, the label can be seen through from the outside even when the drug storage chamber and the diluent chamber are folded in two at the weak seal portion. is there.

  In addition, since the drug storage chamber and a vacant chamber having a mouth portion are connected through a weak seal portion, the drug is always administered through the vacant chamber in a state diluted with a diluent, so that erroneous administration Can be prevented. In addition, since the medicine containing chamber covered with the gas barrier film and the vacant chamber having the mouth portion through the weak seal portion are continuously provided, it is not a requirement that the mouth portion and its surroundings have gas barrier properties, Accordingly, the material cost can be reduced. Furthermore, since the conventional aluminum processed film is not used, there is an advantage that it can be provided at a low cost, is environmentally friendly, and is easily disposed of.

(6) The water absorbent is inorganic, calcium oxide, aluminum oxide (AlO _x ), zeolite, silica gel, shochu liquor, magnesium sulfate, calcium chloride, potassium sulfate, phosphorus pentoxide, sodium carbonate, potassium carbonate, organic , Poly (meth) acrylate, carboxymethyl cellulose, polyethylene glycol, and derivatives thereof, one material selected from among the above-mentioned inorganic materials, a combination of organic materials, or a combination of the above-mentioned inorganic materials and organic materials. Any of the combinations may be used. A stable sealant layer can be formed by kneading such a moisture absorbent into the resin material.

(7) The resin material is linear low density polyethylene (LLDPE), low density polyethylene (LDPE), polypropylene (PP), ethylene / vinyl acetate copolymer (EVA), acid copolymer, acid ester copolymer, and One kind of material selected from ionomers, or a combination of the above materials may be used. A sealant film formed by kneading a powder of a moisture absorbent such as calcium oxide (CaO) and / or aluminum oxide (AlO _x ) into such a resin material has good adhesion (heat seal, adhesion, etc.). Therefore, it can be easily laminated on other film materials.

(8) The gas barrier film has the sealant layer as an innermost layer, and on the outside of the sealant layer, polyethylene terephthalate (PET), polyvinyl alcohol (PVA), or ethylene / vinyl alcohol copolymer (EVOH) with silica and Alternatively, a barrier film layer formed by vapor deposition of alumina may be provided. In this way, the water absorption capacity is remarkably improved by the sealant layer, so that the number of laminated barrier film layers can be reduced, thereby reducing the cost.

(9) The sealant layer has a two-layer or three-layer structure in which a transparent resin material not kneaded with the moisture absorbent is disposed on one or both sides of the transparent resin material kneaded with the moisture absorbent. It may be formed. If it does in this way, a sealant layer can be protected and lamination to other film materials will become easy. In addition, when a sealant layer is made into two layers, it is preferable to make the side which touches the contents into a transparent resin (a water absorbent is not kneaded).

(10) The number of barrier film layers disposed outside the sealant layer may be set to 1 to 10 layers. Within such a wide range, a desired gas barrier property can be ensured by selecting an appropriate number of layers according to the type of the drug.

(11) Another multi-chamber bag of the present invention is a multi-chamber bag in which a drug storage chamber and a diluent chamber having a mouth portion are connected via a weak seal portion,
The drug storage chamber and the diluent chamber are made of a transparent film material, and the drug storage chamber is covered with a transparent gas barrier film, and the gas barrier film is formed by kneading a moisture absorbent into a transparent resin material. A sealant layer is provided.

  According to such a configuration, the drug containing chamber is covered with a transparent gas barrier film having a sealant layer having a high moisture absorption capacity, so that the drug can be made of water or oxygen without using a desiccant or an oxygen scavenger. It can be protected from being affected. And since the gas barrier film is transparent, the inside of the medicine storage chamber can be seen through from the outside, the state of the stored medicine and the weak seal portion are broken, and the diluent is supplied from the diluent chamber to the medicine storage chamber. Since the presence or absence of insoluble foreign matter and the like can be clearly confirmed when is introduced and mixed with a drug, the occurrence of erroneous administration can be suppressed.

  In addition, since the drug storage chamber is covered with a transparent gas barrier film, contamination of foreign matters can be clearly detected in the manufacturing process. For example, if a double-sided printed label is attached to one side of the diluent chamber, the label can be seen through from the outside even when the drug storage chamber and the diluent chamber are folded in two at the weak seal portion. is there. Furthermore, since the conventional aluminum processed film is not used, there is an advantage that it can be provided at a low cost, is environmentally friendly, and is easily disposed of.

(12) An empty chamber may be provided between the diluent chamber and the mouth, and the weak seal portion may be interposed between the empty chamber and the diluent chamber. If it does in this way, after checking the mixed state of a medicine and a diluent, a medicine can be administered via an empty room.

  Since the gas barrier film of the present invention has a sealant layer in which a moisture absorbent is kneaded into a transparent resin material, for example, a desiccant or an oxygen scavenger can be used by covering this in a drug containing chamber. In addition, the drug can be protected from being affected by moisture and oxygen. In addition, since the sealant layer is transparent, the inside of the medicine container can be seen through from the outside. When the diluent is introduced into the medicine container and mixed with the medicine, it is insoluble. Since it is possible to clearly confirm the presence or absence, etc., the occurrence of erroneous administration can be suppressed. And since the gas barrier film provided with such a sealant layer improves remarkably water vapor barrier property especially, the number of layers of a barrier film layer can be decreased and it can provide at low cost.

  The multi-chamber bag of the present invention can protect the drug from being affected by moisture and oxygen without using a desiccant or an oxygen scavenger. And when the inside of the medicine storage chamber can be seen through from the outside, when the state of the stored medicine and the weak seal portion are broken and the diluent is introduced into the medicine storage chamber from the diluent chamber and mixed with the medicine Since the presence or absence of insoluble foreign matter can be clearly confirmed, the occurrence of erroneous administration can be suppressed.

  In addition, foreign matters can be clearly detected in the manufacturing process. For example, if a label printed on both sides is affixed to one side of the diluent chamber, there is an advantage that the label can be seen through from the outside even when the medicine storage chamber and the diluent chamber are folded in two at the weak seal portion. .

  Furthermore, since the drug is always administered through the empty chamber in a state diluted with a diluent, it is possible to prevent the occurrence of erroneous administration. Further, the gas barrier property is not a requirement at the mouth and its periphery, and the material cost can be reduced accordingly. Furthermore, since the conventional aluminum processed film is not used, there is an advantage that it can be provided at a low cost, is environmentally friendly, and is easily disposed of.

  Another multi-chamber bag of the present invention can protect the drug from being affected by moisture and oxygen without using a desiccant or oxygen scavenger. And when the inside of the medicine storage chamber can be seen through from the outside, when the state of the stored medicine and the weak seal portion are broken and the diluent is introduced into the medicine storage chamber from the diluent chamber and mixed with the medicine Since the presence or absence of insoluble foreign matter can be clearly confirmed, the occurrence of erroneous administration can be suppressed.

  In addition, foreign matters can be clearly detected in the manufacturing process. For example, if a double-sided printed label is attached to one side of the diluent chamber, the label can be seen through from the outside even when the drug storage chamber and the diluent chamber are folded in two at the weak seal portion. is there. Furthermore, since the conventional aluminum processed film is not used, there is an advantage that it can be provided at a low cost, is environmentally friendly, and is easily disposed of.

Hereinafter, a gas barrier film and a multi-chamber bag according to the best mode of the present invention will be described in detail with reference to the drawings.
1 is a front view of a multi-chamber bag, FIG. 2 is a cross-sectional view, and FIG. 3 is a cross-sectional view of a film material and a gas barrier film. 1 and 2, reference numeral 1 denotes a drug storage chamber for storing various drugs such as antibiotics, 2 is a weak seal portion, 3 is a diluent chamber, 4 is a mouth portion, 5 is an empty chamber, and 6 is a gas barrier. A film 7 is a hanging hole. The multi-chamber bag has a diluent chamber 3 connected to one end side of the medicine storage chamber 1 via a weak seal portion 2, and is connected to the other end side of the medicine storage chamber 1 via a weak seal portion 2. A vacant chamber 5 having a portion 4 is continuously provided, the drug storage chamber 1, the diluent chamber 3 and the vacancy 5 are made of a transparent film material, and the outside of the drug storage chamber 1 is a transparent gas barrier film 6. Covered.

  For example, as shown in FIG. 3A, the film material forming the drug containing chamber 1, the diluent chamber 3, and the empty chamber 5 is a mixed resin layer (thickness) of polyethylene (PE) and polypropylene (PP) on the inner surface side. , Polyethylene (PE) layer (thickness 60 μm) 12, cycloolefin copolymer (COC) layer or cycloolefin polymer (COP) layer (thickness 20 μm) 13, polyethylene (PE) layer (thickness 50 μm) 12 In the multi-layer configuration, the peripheral portions of the two film materials are welded to each other, and between the drug storage chamber 1 and the diluent chamber 3 and between the drug storage chamber 1 and the empty chamber 5, respectively. Weak seal portions 2 and 2 are formed.

On the other hand, the transparent gas barrier film 6 covering the outside of the medicine storage chamber 1 is provided with a sealant layer 6A on the inner surface side and a barrier film layer 6B on the outer side as shown in FIG. 3 (b), for example. Configured to be installed. The sealant layer 6A is composed of a linear low-density polyethylene (LLDPE) (resin material of the present invention) layers 65, 65 containing a powder of calcium oxide (CaO) and / or aluminum oxide (AlO _x ) or the like. The barrier film layer 6B has a polyethylene terephthalate (PET) (thickness) through a dry laminate adhesive layer 63 with respect to the sealant layer 6A. The layer 64 is formed by sandwiching a layer 64 kneaded in density polyethylene (LLDPE). 12 μm) 62, two layers obtained by vapor-depositing a silica vapor-deposited layer 6 a are laminated.

  The above-described barrier film layer 6B may be six layers as shown in FIG. 3C, or may be appropriately selected in the range of 1 to 10 layers. Further, the lamination of the barrier film layer 6B to the sealant layer 6A can be performed by the sandwich lamination method in which the heat-melting resin is sandwiched in addition to the dry lamination method described above. In this case, as the resin sandwiched between the barrier film layer 6B and the sealant layer 6A, it is preferable to use a polyolefin-based resin excellent in adhesiveness, and it is preferable to use a resin of the same system as the resin used for the sealant layer 6A. It is preferable from the point of adhesiveness. Furthermore, a film having excellent gas barrier properties such as polyvinyl alcohol (PVA) or ethylene / vinyl alcohol copolymer (EVOH) may be further laminated on the gas barrier film 6 for the purpose of improving gas barrier properties.

In this way, by covering the drug containing chamber 1 with the transparent gas barrier film 6 having the sealant layer 6A having a high water absorption capability as the innermost layer, the drug can be absorbed without using a desiccant or an oxygen scavenger. It can protect so that it may not receive the influence of oxygen, and can also reduce the lamination | stacking number of the barrier film layer 6B arrange | positioned on the outer side of the sealant layer 6A, and it becomes possible to reduce cost by this. Incidentally, the gas barrier film 6 having such a sealant layer 6A has an oxygen permeability of 1 cc / m ² · day · atm or less and a moisture permeability of 1 g / m ² · day (40 ° C., 90%) or less. Is preferred.

  Since the gas barrier film 6 is transparent, the inside of the medicine storage chamber 1 can be seen through from the outside, and the state of the medicine stored and the weak seal portion 2 are broken to store the medicine from the diluent chamber 3. When the diluent is introduced into the chamber 1 and mixed with the medicine, the presence or absence of insoluble foreign matter can be clearly confirmed, so that the occurrence of erroneous administration can be suppressed. Moreover, since the medicine storage chamber 1 is covered with the transparent gas barrier film 6, it is possible to clearly detect the contamination of foreign matters in the manufacturing process. For example, if a double-sided printed label is affixed to one side of the diluent chamber 3, the label can be seen through from the outside even when the drug storage chamber 1 and the diluent chamber 3 are folded in two by the weak seal portion 2. There is also an advantage that can be read.

  Furthermore, since the medicine chamber 1 and the vacant chamber 5 having the mouth portion 4 are connected through the weak seal portion 2, the medicine is always administered through the vacant chamber 5 in a state diluted with the diluent. Therefore, occurrence of erroneous administration can be prevented. In addition, since the medicine containing chamber 1 covered with the gas barrier film 6 and the vacant chamber 5 having the mouth portion 4 through the weak seal portion 2 are continuously provided, the mouth portion 4 and its surroundings have a barrier property. Therefore, the material cost can be reduced accordingly. Furthermore, since the conventional aluminum processed film is not used, there is an advantage that it can be provided at a low cost, is environmentally friendly, and is easily disposed of.

In order to form the sealant layer 6A as described above, either CaO powder or AlO _x powder may be kneaded into linear low density polyethylene (LLDPE), but both CaO powder and AlO _x powder are mixed. It may be kneaded. Further, instead of the linear low density polyethylene (LLDPE), low density polyethylene (LDPE), polypropylene (PP), ethylene / vinyl acetate copolymer (EVA), acid copolymer, acid ester copolymer and / or ionomer, etc. CaO powder and / or AlO _x powder may be kneaded into the mixture.

3B and 3C, the sealant layer 6A is disposed in the innermost layer. However, the present invention is not limited to this, and a protective film layer or a barrier film layer is provided inside the sealant layer 6A. It may be laminated. Further, in the example of FIG. 3 (b) (c), although the sealant layer 6A and the three-layer structure, kneaded into CaO and / or AlO _X powder powder linear low density polyethylene (LLDPE) layer 64 The sealant layer 6 </ b> A having a two-layer structure in which a linear low density polyethylene (LLDPE) layer 65 is laminated on the layer 64 may be used.

Further, the water absorbing agent, may be as follows in place of CaO or AlO _X. That is, for inorganic substances, zeolite, silica gel, shochu liquor, magnesium sulfate, calcium chloride, potassium sulfate, phosphorus pentoxide, sodium carbonate, potassium carbonate, for organic substances, poly (meth) acrylate, carboxymethylcellulose, polyethylene glycol, and One kind of material selected from these derivatives, the above inorganic materials, a combination of organic materials, or a combination of the above inorganic materials and organic materials may be used.

  Moreover, although illustration is abbreviate | omitted, the gas barrier film 6 provided with such sealant layer 6A and the barrier film layer 6B has a chemical | medical agent storage chamber and the dilution liquid chamber provided with the opening part through a weak seal part, for example. The present invention can also be applied to a multi-chamber bag having a two-chamber configuration, and the drug storage chamber can be covered with the gas barrier film 6. Also in the case of a three-chamber multi-chamber bag in which an empty chamber is provided between the diluent chamber and the mouth, and the weak seal portion is interposed between the empty chamber and the diluent chamber, Similarly, the drug storage chamber can be covered with the gas barrier film 6.

  It should be noted that the present invention is not limited to the embodiment, and it is free to make design changes and improvements as necessary, as long as it does not depart from the gist of the invention. The combination of configurations between them is also free, and the gas barrier film of the present invention can be applied to a multi-chamber bag provided with at least a medicine storage chamber.

It is a front view of the multi-chamber bag which concerns on embodiment of this invention. FIG. (A) Cross-sectional view showing the layer configuration of the same film material, (b) Cross-sectional view showing the layer configuration of the same gas barrier film, (c) Cross-sectional view showing the layer configuration of another gas barrier film.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Drug storage chamber, 2 ... Weak seal part, 3 ... Diluent chamber, 4 ... Mouth part, 5 ... Empty room, 6 ... Gas barrier film, 6A ... Sealant layer, 6B ... Barrier film layer, 62 ... Polyethylene terephthalate (PET) )

Claims (12)

  A barrier film layer formed by vapor-depositing silica and / or alumina on polyethylene terephthalate (PET), polyvinyl alcohol (PVA) and / or ethylene-vinyl alcohol copolymer (EVOH), and a water absorbent in a transparent resin material A gas barrier film comprising: a sealant layer including   The water absorbent is inorganic, calcium oxide, aluminum oxide, zeolite, silica gel, shochu liquor, magnesium sulfate, calcium chloride, sodium sulfate, potassium sulfate, phosphorus pentoxide, sodium carbonate, potassium carbonate, and organic matter, poly (meta ) Any one material selected from acrylate, carboxymethylcellulose, polyethylene glycol, and derivatives thereof, a combination of the inorganic materials, a combination of the organic materials, or a combination of the inorganic material and the organic materials. The gas barrier film according to claim 1, wherein   The resin material includes linear low density polyethylene (LLDPE), low density polyethylene (LDPE), polypropylene (PP), ethylene-vinyl acetate copolymer (EVA), acid copolymer, acid ester copolymer, and ionomer. The gas barrier film according to claim 1 or 2, wherein the gas barrier film is one kind of material selected from the above or a combination of the above materials.   The sealant layer is formed in a two-layer or three-layer structure in which a transparent resin material not kneaded with the moisture absorbent is disposed on one side or both sides of the transparent resin material kneaded with the moisture absorbent. The gas barrier film according to any one of claims 1 to 3, wherein: A dilution chamber is connected to one end side of the drug storage chamber via a weak seal portion, while a vacant chamber having a mouth portion is connected to the other end side of the drug storage chamber via a weak seal portion. A room bag,
The drug storage chamber, the diluent chamber and the vacant chamber are made of a transparent film material, and the drug storage chamber is covered with a transparent gas barrier film, and the gas barrier film is formed by applying a moisture absorbent to a transparent resin material. A multi-chamber bag comprising a kneaded sealant layer.   The water absorbent is an inorganic substance such as calcium oxide, alumina, zeolite, silica gel, shochu cake, magnesium sulfate, calcium chloride, sodium sulfate, potassium sulfate, phosphorus pentoxide, sodium carbonate, potassium carbonate, and an organic substance such as poly (meta). One of materials selected from acrylate, carboxymethyl cellulose, polyethylene glycol, and derivatives thereof, any of the above inorganics, a combination of organics, or a combination of the above inorganics and organics The multi-chamber bag according to claim 5, wherein   The resin material includes linear low density polyethylene (LLDPE), low density polyethylene (LDPE), polypropylene (PP), ethylene-vinyl acetate copolymer (EVA), acid copolymer, acid ester copolymer, and ionomer. The multi-chamber bag according to claim 5 or 6, wherein the bag is a single material selected from the inside or a combination of the materials.   The gas barrier film has the sealant layer as an innermost layer, and outside the sealant layer, polyethylene terephthalate (PET), polyvinyl alcohol (PVA) or ethylene / vinyl alcohol copolymer (EVOH), silica and / or alumina. A multi-chamber bag according to any one of claims 5 to 7, wherein a barrier film layer formed by vapor-depositing is disposed.   The sealant layer is formed in a two-layer or three-layer structure in which a transparent resin material not kneaded with the moisture absorbent is disposed on one side or both sides of the transparent resin material kneaded with the moisture absorbent. A multi-chamber bag according to any one of claims 5 to 8.   The multi-chamber bag according to claim 8 or 9, wherein the number of barrier film layers disposed outside the sealant layer is set to 1 to 10 layers. A drug storage chamber and a diluting solution chamber provided with a mouth portion are multi-chamber bags connected continuously via a weak seal portion,
The drug storage chamber and the diluent chamber are made of a transparent film material, and the drug storage chamber is covered with a transparent gas barrier film, and the gas barrier film is formed by kneading a moisture absorbent into a transparent resin material. A multi-chamber bag comprising a sealant layer.   12. The multiple chamber according to claim 11, wherein an empty chamber is provided between the diluent chamber and the mouth, and the weak seal portion is interposed between the empty chamber and the diluent chamber. bag.

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