JP6236861B2 - Packaging bag with spout - Google Patents

Description

  The present invention relates to a packaging bag with a cap, and more particularly to a packaging bag with a cap in which the plug is accommodated in the packaging bag.

  2. Description of the Related Art Various types of packaging bags with plugs in which a plug is provided on a packaging bag using a laminated body in which paper or plastic film is laminated have been proposed and are on the market. In all cases, the plug is exposed, and dust is attached to the plug during transportation, storage, or over-the-counter sales, or when handling a packaging bag with a plug. It is difficult to avoid touching. In addition, when the contents are food, the contents may be put directly into the mouth from the spout of the spigot, which has a serious unsanitary problem in terms of hygiene. Further, depending on the contents, when gas barrier properties are required for the packaging bag with a stopper, the gas barrier property can be imparted to the packaging bag, but there is a problem of deterioration of the gas barrier property from the stopper. This is due to the resin used and structural factors.

  There is a proposal to give a gas barrier property to the plug. This is a proposal in which a gas barrier property is imparted to the spout part of the plug (Patent Document 1). In this, a member having a gas barrier property is attached to the inner surface of the spout part of the plug by insert molding. In this method, since insert molding is performed at the time of injection molding, there are problems of management such as positioning and adhesion of members, and there is a problem that productivity is lowered.

  In addition, there are proposals for a packaging bag with a cap that is housed in a packaging bag, prevents deterioration of gas barrier properties, and is excellent in hygiene (Patent Documents 2 and 3).

  In patent document 2, the packaging bag formed by sealing the peripheral edge portion is divided into two chambers by sealing the inner layer of the packaging bag, and a mouth provided with a plug between the inner layers of the sealing portion divided into the two chambers. It is a packaging bag with a stopper. That is, the plug portion is covered and sealed with a film. Patent Document 3 also covers and seals the plug with a film.

  In these packaging bags, a side seal portion of the film covering the cap portion is provided with a notch and an opening assist line (perforation or cut) formed by connecting from the notch. When opening, the front and back films are opened along the opening auxiliary line formed across the plug from the notch. Therefore, since the opening assist line is provided across the plug portion, the plug portion may be caught and cannot be opened successfully.

JP 2006-1623 A JP-A-10-305850 JP-A-11-263355

  In view of such problems, the present invention provides a packaging bag with a cap that can be easily exposed when the plug is accommodated in a packaging bag and opened.

  In order to solve the above problems, the inventors have intensively studied and completed the present invention.

The invention according to claim 1 of the present invention is such that at least two main body films comprising a base material layer, an intermediate layer having gas barrier properties, and a sealant layer face each other with the sealant layer inside. Overlapping, left and right side seal part, bottom seal part, top seal part is formed,
In a packaging bag with a cap, in which a cap is attached to the top seal portion and a first storage portion is formed inside,
Either one of the front and back body films of the top seal part extends upward, and the lid part is formed continuously,
An opening tab is formed at the upper end of the lid,
The lid portion is folded with the sealant layer inside, and the upper end portion of the lid portion is bent below the lower end portion of the top seal portion, and sealed with the other main body film so as to cover the plug. ,
It is a packaging bag with a cap in which the 2nd accommodating part which accommodates the said stopper is formed.

  The invention according to claim 2 of the present invention is characterized in that the opening cut is engraved in the width direction in the vicinity of the boundary between the top seal part and the lid part. It is a bag.

  The invention according to claim 3 of the present invention is characterized in that the opening cut is formed by pulse oscillation type laser processing, and at least one continuous or discontinuous slit is formed through the base material layer. The packaging bag with a cap according to claim 2.

The invention according to claim 4 of the present invention is such that at least two main body films comprising a base material layer, an intermediate layer having a gas barrier property, and a sealant layer are opposed to each other with the sealant layer inside. The upper corner seal part is formed at the upper corner of the left and right side seal part, the bottom seal part, the top seal part, and the top seal part and the left side seal part or the right side seal,
In the packaging bag with a cap, in which a cap is attached to the upper corner seal portion and the first storage portion is formed inside,
Either one of the front and back main body films of the upper corner seal part is extended upward and the lid part is continuously formed,
An opening tab is formed at the upper end of the lid,
The lid portion is folded with the sealant layer inside, and the upper end portion of the lid portion is bent inward from the upper corner seal portion , and sealed with the other main body film so as to cover the plug. A packaging bag with a cap, in which a second storage portion for storing the plug is formed.

  The invention according to claim 5 of the present invention is characterized in that the opening cut is engraved in the width direction in the vicinity of the boundary between the upper corner seal portion and the lid portion. It is a packaging bag.

  The invention according to claim 6 of the present invention is characterized in that the opening cut is formed by pulse oscillation type laser processing, and at least one continuous or discontinuous slit is formed through the base material layer. The packaging bag with a cap according to claim 5.

  The invention according to claim 7 of the present invention is characterized in that an easy peel resin layer having an easy peel property is formed on the sealant layer of the lid portion. It is a packaging bag with a cap of any one of Claims.

  In the invention according to claim 8 of the present invention, the intermediate layer is a laminated film in which an aluminum foil is laminated or a vapor-deposited film having a vapor-deposited layer made of an inorganic oxide of silicon oxide, magnesium oxide, or aluminum oxide. It is a packaging bag with a cap of any one of Claims 1-7 characterized by the above-mentioned.

  In the packaging bag with a cap of the present invention, since the cap is stored in a packaging bag having a gas barrier property, the gas barrier property from the cap is prevented from being deteriorated, and it is excellent in hygiene. It can be easily exposed.

  Since the resin layer having the easy-peel property is formed on the sealant layer of the lid, the second storage portion can be easily opened, and the peeled lid can be opened along the opening cut line. Can be easily cut off without being caught by the stopper.

  According to the first aspect of the present invention, it is possible to prevent the gas barrier property from being lowered from the plug by storing in the packaging bag having the gas barrier property, that is, the second storage part. Also, during transportation, storage, or over-the-counter sales, the spigot is in the second storage part, and dust is attached to the spigot, or when the plug is covered with a person, In addition to being able to avoid touching the hand, the plug is not exposed as long as the packaging bag is not opened, thus preventing tampering.

  According to claim 2 of the present invention, the opening lid is cut in the width direction in the vicinity of the boundary between the top seal portion and the lid portion, so that the peeled lid portion is cut along the opening break. Can do. It can be easily cut off without being caught by the plug.

  According to claim 3 of the present invention, by selecting the wavelength of the pulse oscillation type laser, it is possible to engrave the opening cut only on the base material layer. That is, it is possible to make an incision that penetrates the base material layer and reaches the intermediate layer. The slit which penetrates the base material layer and reaches the intermediate layer can be formed in at least one continuous or discontinuous manner.

  According to the fourth aspect of the present invention, it is possible to prevent the gas barrier property from being lowered from the plug by storing the plug attached to the upper corner seal part in the second storage unit. It is also excellent in hygiene. The shape of the packaging bag with plugs makes the contents easy to eat and drink and easy to pour.

  According to claim 5 of the present invention, the opening lid is cut in the width direction in the vicinity of the boundary between the upper corner seal portion and the lid portion, so that the peeled lid portion is cut along the opening break. Can do. It can be easily cut off without being caught by the plug.

  According to claim 6 of the present invention, by selecting the wavelength of the pulse oscillation type laser, it is possible to engrave the opening cut only on the base material layer. That is, it is possible to make an incision that penetrates the base material layer and reaches the intermediate layer. The slit which penetrates the base material layer and reaches the intermediate layer can be formed in at least one continuous or discontinuous manner.

  According to claim 7 of the present invention, an easy peel resin layer having an easy peel property is formed on the sealant layer of the lid, so that the opening tab is picked and the lid is easily pulled from the base material layer. Can be peeled off. The second storage portion can be easily opened and the plug can be exposed.

  According to claim 8 of the present invention, the intermediate layer is a laminated film in which an aluminum foil is laminated or a vapor-deposited film having a vapor-deposited layer made of an inorganic oxide of silicon oxide, magnesium oxide, or aluminum oxide. The first storage portion and the second storage portion can be formed of a main body film having excellent gas barrier properties. A packaging bag with a stopper having excellent gas barrier properties can be formed.

It is explanatory drawing which shows an example of the laminated constitution of a main body film. It is explanatory drawing which shows an example of the laminated constitution of a cover part. It is explanatory drawing which shows an example of the state before sealing the stopper of the packaging bag with a stopper of this invention. It is explanatory drawing which shows an example of the packaging bag with a cap of FIG. It is explanatory drawing which shows an example which exposed the stopper of the packaging bag with a stopper of FIG. It is explanatory drawing which shows another example of the packaging bag with a stopper of this invention, and shows an example of the state before sealing a stopper part. It is explanatory drawing which shows an example of the packaging bag with a cap of this invention of FIG. It is explanatory drawing which shows another example of the packaging bag with a stopper of this invention.

  Hereinafter, embodiments for carrying out the present invention will be described.

  FIG. 1 is an explanatory view showing an example of the layer structure of the main body film. The main body film 1 includes a base material layer 3 / an adhesive layer 6 / an intermediate layer 4 having gas barrier properties / an adhesive layer 6 / a sealant layer 5.

  FIG. 2 is an explanatory diagram illustrating an example of a layer configuration of the lid. In FIG. 2A, the lid portion 15 includes a base material layer 3 / an adhesive layer 6 / an intermediate layer 4 / an adhesive layer 6 / a sealant layer 5 / an easy peel layer 7. 2-2 is explanatory drawing which shows an example of the part which provided the opening line | wire cut line of the cover part. In the opening cut 17, the slit 19 penetrates the base material layer 3 and reaches the intermediate layer 4.

  As the base material layer 3, since it becomes a basic material constituting the packaging bag, a resin having excellent properties in mechanical, physical, chemical and the like can be used. For example, polyester, polyamide, polypropylene Resins such as those based on polycarbonate, polycarbonate and polyacetal can be used. Moreover, as a film using these resins, any of an unstretched film or a stretched film stretched in a uniaxial direction or a biaxial direction can be used, and the thickness of the film is a strength as a substrate, Thickness that can be held to the minimum necessary for rigidity, etc., is sufficient. If it is too thick, laser processing defects etc. will occur and tearing will be reduced, and there will be a cost increase. , The rigidity is lowered, which is not preferable. For the above reasons, the thickness of the base material layer is suitably about 12 to 25 μm. In addition, in order to improve the gas barrier properties, these films are coated with polyvinylidene chloride resin or deposited with aluminum or inorganic oxide such as silicon oxide, aluminum oxide, tin oxide or indium oxide. It doesn't matter.

  As the intermediate layer 4, a material having gas barrier properties can be used. For example, polyester film laminated with metal foil such as aluminum, iron, copper, tin, ethylene-vinyl alcohol copolymer film, polyvinylidene chloride film, polyacrylonitrile film, vinylidene chloride resin coated film, and inorganic oxide were deposited. A polyester film or the like is used. A nylon film, a polyester film, a polyethylene film, a polypropylene film, or the like can be used for the purpose of improving mechanical toughness, bending resistance, puncture resistance, impact resistance, and the like.

The sealant layer 5 may be any material that can be melted by heat and fused to each other. For example, low-density polyethylene, medium-density polyethylene, high-density polyethylene, linear low-density polyethylene, polypropylene, and ethylene-vinyl acetate are used. Possible by forming a film using resin such as polymer, ionomer resin, ethylene-acrylic acid copolymer, ethylene-methyl acrylate copolymer, ethylene-methacrylic acid copolymer, ethylene-propylene copolymer It is. It is also possible to provide a laminated film by an extrusion laminating method, or to laminate a film formed using these resins via an adhesive. The thickness of the sealant layer is suitably about 15 to 80 μm.

  For the adhesive layer 6, a two-component curable urethane adhesive, a polyester urethane adhesive, a polyether urethane adhesive, an acrylic adhesive, a polyester adhesive, a polyamide adhesive, an epoxy adhesive, or the like is used. can do. As a bonding method, these adhesives can be used by a dry laminating method. It is also possible to extrude a resin such as polyethylene while applying an adhesive by an anchor coat and use a sand polylamination method.

  The easy peel layer 7 needs to have a base material layer of the main body film, an appropriate seal strength, and an easy peel property. For example, a polyethylene resin blended with a thermoplastic elastomer is used as a coating solution, and the coating solution is applied on the sealant layer of the lid. Thermoplastic elastomers include ethylene / α-olefin copolymers, polybutene-1, polymethyl-1-pentene, polyhexene 1, styrene / isoprene copolymers, styrene / isobutylene copolymers and their hydrogenated products, polystyrene, and cyclic olefins. -At least 1 type of a copolymer and a cyclic olefin polymer can be used. What is necessary is just to determine the compounding quantity of a thermoplastic elastomer from the balance of moderate seal strength and easy peel property. Moreover, the application | coating method is possible by well-known methods, such as a gravure printing, an offset printing, a flexographic printing, a silk screen printing, and an inkjet printing.

  A hot melt agent is also possible. For example, low density polyethylene, medium density polyethylene, high density polyethylene, linear low density polyethylene, polypropylene, ethylene-vinyl acetate copolymer, ionomer resin, ethylene-acrylic acid copolymer, ethylene-methyl acrylate copolymer Resins such as ethylene-methacrylic acid copolymer and ethylene-propylene copolymer may be used, and fillers may be added to these resins so as to obtain appropriate seal strength and easy peel properties. . Moreover, the application | coating method is possible by well-known methods, such as printing using a hot-melt machine.

  FIG. 3 is an explanatory view showing an example of a state before sealing the cap of the packaging bag with a cap. The form of the packaging bag 50 shows an example of a standing pouch with a stopper. In the packaging bag 50, the top seal portion 10 and the bottom tape 2 are folded back in an inverted V shape, and the bottom seal 13 inserted between the front body film 1a and the back body film 1b and sealed to the ship bottom mold is formed. The left seal portion 11 and the right seal portion 12 are formed. The top seal portion 10 is formed with a first storage portion 21 that seals the plug 14 between the sealant layers and stores the contents.

  The back main body film 1b of the top seal portion 10 extends upward to form a lid portion 15. An opening tab 16 is formed on the upper end portion of the lid portion 15. An opening break 17 is formed in the width direction near the boundary between the top seal portion 10 and the lid portion 15. V notches 18 are formed at both end edges of the opening cut 17. It can be cut in the width direction with the V notch as a starting portion. The V notch 18 is not particularly limited. Ordinarily used ones such as an I notch and a Y notch may be used.

  FIG. 4 is an explanatory view showing an example of a packaging bag with a cap of FIG. It is explanatory drawing which shows an example of the packaging bag with a stopper of this invention. The lid portion 15 shown in FIG. 3 is bent with the sealant layer inside, and sealed to the base material layer of the front body film 1a so as to cover the mouthpiece 14 to form a lid portion sealing portion 20. Is formed. The portion of the opening tab 16 is not sealed. This is to make it easier to pick the opening tab 16 when opening.

By storing the plug 14 in the second storage portion 22, it is possible to prevent the gas barrier property from being lowered from the plug. Further, it is possible to avoid the fact that dust or the like is attached to the plug during transportation, storage or over-the-counter sales, or that the human hand touches the plug during handling. A sanitary packaging bag with a stopper can be provided.

  FIG. 5 is an explanatory view showing an example in which the cap of the packaging bag with plug of FIG. 4 is exposed. By picking the opening tab 16 and exposing the cap 14 while peeling the lid portion 15 upward from the front body film 1 a, and then cutting the lid portion 15 along the opening cut 17 starting with the V notch 18. Thus, a packaging bag with a cap, to which a sanitary plug 14 is attached, is obtained. When cutting along the opening cut, it can be easily done without being caught by the plug. In addition, since the easy peel layer is formed on the inner surface of the lid portion, the lid portion seal portion 20 can be easily peeled off.

  FIG. 6 is an explanatory view showing another example of the packaging bag with a cap of the present invention. It is explanatory drawing which shows an example of the state before sealing the stopper plug. An upper corner seal portion 23 is formed at the upper corner portion of the top seal portion 10 and the right seal portion 12, and the plug 14 is sealed and mounted so as to face obliquely upward between the sealant layers of the upper corner seal portion 23. An example is shown. The back main body film 1b of the upper corner seal portion 23 extends obliquely upward, and a lid portion 15 is formed. An opening tab 16 is formed on the upper end portion of the lid portion 15. Further, an opening break 17 is formed in the width direction near the boundary between the upper corner seal portion 23 and the lid portion 15. V notches 18 are formed at both end edges of the opening cut 17.

  FIG. 7 is an explanatory view showing an example of the packaging bag with a cap of the present invention shown in FIG. The lid portion 15 shown in FIG. 6 is bent with the sealant layer inside, and sealed to the base material layer of the front body film 1a so as to cover the mouthpiece 14, thereby forming the lid portion sealing portion 20, and the mouthpiece 14 A second storage portion 22 in which is stored is formed. The portion of the opening tab 16 is not sealed. This is to make it easier to pick the opening tab 16 when opening. When opening the lid, the lid seal portion 20 can be easily peeled off because an easy peel layer is formed on the lid.

  As a form of the packaging bag with a cap of the present invention, a three-side seal type, a four-side seal type, a standing pouch, a gusset type and the like can be arbitrarily selected. FIG. 8 shows an example of a four-side seal type packaging bag 60 with a cap.

  Furthermore, the form for implementing this invention is demonstrated in detail.

  The opening cut 17 is formed in the base material layer. As a method of engraving, for example, a needle punching method or an embossing roll method for pressing a heated needle, a polishing roll, a thermal melting perforation method for melting and perforating a film using a polishing tape, a physical using a knife, a cutter or the like This is possible by using a mechanical drilling method or laser processing. In order to engrave the opening cut in the base material layer, the base material layer can be engraved in any state such as a single state, a state of the main body film, and a state of a package.

  As a method of providing the opening cut, a method of engraving the opening cut using a pulse oscillation type laser is the most suitable method. The kind of laser is possible, for example with a carbon dioxide laser, a YAG laser, a semiconductor laser, an argon ion laser. Of these, a carbon dioxide laser is preferred.

  The shape of the opening cut line may be any of a straight line shape, a curved line shape, a perforated line shape, a broken line shape, etc., and the number thereof may be one or more, and may be continuous or discontinuous. In the present invention, the cut portion may be weakened and act as an opening cut.

  The V notch 18 can be formed by a known method such as laser processing, a Thomson die, or a rotary die.

  The plug 14 is composed of a pouring part and a cap, and is formed integrally by injection molding. The material used is not particularly limited as long as it can be melted and fused with the sealant layer by heat, and needs to be selected according to the resin used for the sealant layer. For example, low density polyethylene, medium density polyethylene , High density polyethylene, linear low density polyethylene, polypropylene, ethylene-vinyl acetate copolymer, ionomer resin, ethylene-acrylic acid copolymer, ethylene-methyl acrylate copolymer, ethylene-methacrylic acid copolymer, Examples thereof include an ethylene-propylene copolymer. Moreover, you may color with the pigment etc. as needed.

  Moreover, a printing ink layer can be provided in a main body film as needed. The printing ink layer is usually preferably provided on the back surface of the base material layer from the viewpoint of maintaining abrasion resistance. As a method for providing the printing ink layer, known printing methods such as gravure printing, offset printing, flexographic printing, and ink jet printing are possible. In some cases, in order to improve the wettability and adhesion of the ink, the surface of the base material layer can be subjected to a treatment such as a corona discharge treatment, a plasma treatment or an anchor coat.

  When eating and drinking the contents from the packaging bag with a cap of the present invention, first pick the tab for opening the lid, open the second storage portion while peeling the lid upward, and then expose the cap, The lid is cut along the opening cut line provided near the boundary between the top seal and the lid. It can be easily cut off without being caught by the plug. Then, the cap of the spout can be removed, and the contents can be eaten or poured out from the pouring part. It is a packaging bag with a cap that does not deteriorate the gas barrier property from the plug and can be easily opened.

  Specific examples of the present invention will be described below.

  A polyester film 12 μm as a base layer, a stretched nylon film 15 μm vapor-deposited with aluminum oxide 40 nm as an intermediate layer, and a low-density polyethylene film 40 μm as a sealant layer are bonded together by a dry lamination method using a two-component urethane adhesive. A body film was created. The layer structure is polyester film 12 μm / aluminum oxide vapor-deposited nylon film 15 μm / low-density polyethylene film 40 μm.

  Next, an easy peel layer was formed on the low density polyethylene film where the lid was to be formed. The easy peel layer was formed by preparing a coating liquid in which a low density polyethylene resin and a polybutene 1 resin were blended, and applying the coating liquid to a predetermined site by gravure printing. The main body film was slit to a predetermined width to form a front and back main body film and a bottom tape, respectively.

  A bottom tape was inserted between the two main and back body films, and the periphery of the bottom and the left and right sides were sealed to form a bottom seal, a left and right seal, and a top seal. A standing pouch having a length of 130 mm, a width of 80 mm, and a bottom of 30 mm was formed to form a first storage portion. The seal width was 5 mm. Further, the back main body film was extended 80 mm above the top seal portion to form a lid portion. An opening tab was formed on the upper end of the lid. At this time, an opening cut was formed in the vicinity of the boundary between the top seal portion and the lid portion. The opening cut was formed in a perforated line shape by carbon dioxide laser processing. In addition, V notches were formed on both ends of the opening cut using a mold.

At this time, the plug was sealed between the sealant layers of the front and back main body films and attached to the central portion of the top seal portion. In addition, an unsealed portion was formed in a part of the top seal portion to form an opening, and 110 ml of distilled water was filled into the first storage portion from this opening, and the opening was sealed and sealed.

  Next, the lid part is folded with the sealant layer inside, and sealed with the base material layer of the front body film so as to cover the stopper, and the stopper is stored and sealed in the second storage part. Created a bag.

  A bottom tape was inserted between the two main and back body films, and the periphery of the bottom and the left and right sides were sealed to form a bottom seal, a left and right seal, and a top seal. At this time, an upper corner seal portion was formed at the upper corner portion of the top seal portion and the right side seal, and a plug was attached to the upper corner seal portion. As for the size of the bag, a standing pouch having a length of 130 mm, a width of 80 mm, and a bottom of 30 mm was formed to form a first storage portion. The seal width was 5 mm. Further, the back main body film was extended 80 mm above the upper corner seal part to form a lid part. Further, an opening tab was formed on the upper end of the lid. At this time, an opening cut was formed in the vicinity of the boundary between the upper corner seal portion and the lid portion. The opening cut was formed into a perforation by carbon dioxide laser processing. In addition, V notches were formed on both ends of the opening cut using a mold.

  At this time, a plug was sealed between the sealant layers of the front and back main body films and attached to the central portion of the upper corner seal portion. In addition, an unsealed portion was formed in a part of the top seal portion to form an opening, and 110 ml of distilled water was filled into the first storage portion from this opening, and the opening was sealed and sealed.

  Next, the lid part is folded with the sealant layer inside, and sealed with the base material layer of the front body film so as to cover the stopper, and the stopper is stored and sealed in the second storage part. Created a bag.

<Evaluation>
By picking the knob part of the packaging bag with a cap of Example 1 and Example 2, and peeling the lid part upward from the main body film, the second storage part can be opened and the stopper can be exposed. It was. Further, even if the peeled lid part was cut along the opening cut line, it was easily formed without being caught by the plug. The cap of the spout was removed, and the contents could be eaten or consumed from the dispensing part. It is a packaging bag with a stopper that can easily expose the stopper when opening the container while preventing deterioration of the gas barrier property from the stopper.

DESCRIPTION OF SYMBOLS 1 ... Main body film 1a ... Front main body film 1b ... Back main body film 2 ... Bottom tape 3 ... Base material layer 4 ... Intermediate layer 5 ... Sealant layer 6... Adhesive layer 7... Easy peel layer 10 .. Top seal portion 11... Left seal portion 12 .. Right seal portion 13. ··· Lid 16 ··· Opening tab 17 ··· Opening cut 18 ··· V notch 19 · · · Slit 20 ··· Lid portion 21 ··· First storage portion 22 ··· 2nd storage part 23 ... upper corner seal part 50 ... packaging bag with cap (standing pouch with cap)
60 ... Packaging bag with cap (four-side sealed bag with cap)

Claims (8)

At least two main body films consisting of a base material layer, an intermediate layer having a gas barrier property, and a sealant layer are overlapped with the sealant layer facing each other so as to face each other. Part, top seal part is formed,
In a packaging bag with a cap, in which a cap is attached to the top seal portion and a first storage portion is formed inside,
Either one of the front and back body films of the top seal part extends upward, and the lid part is formed continuously,
An opening tab is formed at the upper end of the lid,
The lid portion is folded with the sealant layer inside, and the upper end portion of the lid portion is bent below the lower end portion of the top seal portion, and sealed with the other main body film so as to cover the plug. ,
A packaging bag with a cap formed with a second storage portion for storing the plug.   The packaging bag with a cap according to claim 1, wherein an opening cut is formed in the width direction in the vicinity of the boundary between the top seal portion and the lid portion.   3. A packaging bag with a cap according to claim 2, wherein the opening cut is formed by pulse oscillation type laser processing, and at least one continuous or discontinuous slit is formed through the base material layer. . At least two main body films consisting of a base material layer, an intermediate layer having a gas barrier property, and a sealant layer are overlapped with the sealant layer facing each other so as to face each other. An upper corner seal portion is formed at the upper corner portion of the left seal portion or the right seal,
In the packaging bag with a cap, in which a cap is attached to the upper corner seal portion and the first storage portion is formed inside,
Either one of the front and back main body films of the upper corner seal part is extended upward and the lid part is continuously formed,
An opening tab is formed at the upper end of the lid,
Said lid, and a sealant layer on the inside, upper portion of the lid than the corner sealing portion
A packaging bag with a cap that is folded inward and sealed with the other main body film so as to cover the plug, and a second storage portion for storing the plug is formed.   The packaging bag with a cap according to claim 4, wherein an opening cut is formed in the width direction in the vicinity of the boundary between the upper corner seal portion and the lid portion.   6. The packaging bag with a cap according to claim 5, wherein the opening cut is formed by pulse oscillation type laser processing, and at least one continuous or discontinuous slit is formed through the base material layer. .   An easy-peel resin layer having an easy-peel property is formed on the sealant layer of the lid, and the packaging with a cap according to any one of claims 1 to 6, bag.   The said intermediate | middle layer is a laminated film which laminated | stacked aluminum foil, or a vapor deposition film with the vapor deposition layer which consists of inorganic oxides in any one of a silicon oxide, magnesium oxide, and aluminum oxide of Claim 1-7 characterized by the above-mentioned. A packaging bag with a cap according to any one of the preceding claims.

Images