JP2005335782A - Packaging bag - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an inexpensive, conveniently-used and environmentally-friendly packaging bag capable of being subjected to sterilization by steam, showing a gas barrier characteristic, and having a light-cutoff property (UV cut), an excellent opening property not allowing a break in a laminated film to occur from the seal surface when a seal of a lid member is opened and a high productivity. <P>SOLUTION: This packaging bag comprises a bag main body (1) made of a gas-barrier material having a cavity for use in storing a content (5), a sterilization lid member (2) sealed at a folded part (8) of an opening of the bag main body (1) and made of a sterilization paper closing the cavity for use in storing the content (5), and a complete sealing lid (3) made of gas-barrier material so as to cover on the sterilization lid member (2). <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to medical devices such as prefilled syringes and injection needle packs, and packaging bags for pharmaceuticals such as ampoules. More specifically, the present invention is capable of steam sterilization, has a gas barrier property, and has a light shielding property (UV cut). Furthermore, when the lid is opened, the laminated film does not break from the sealing surface and has good openability, high productivity, low cost, excellent convenience, and environmentally friendly packaging bags. Is.

  Conventionally, blister packs and pillow packages are often used as medical devices such as prefilled syringes and injection needle packs, and pharmaceutical packaging such as ampoules.

  The blister pack is composed of a bottom material made of a molded body in which a plastic sheet is molded into a concave shape to provide a content storage portion, and a lid material that closes the concave portion opening for content storage in the bottom material. ing.

  The bottom material of the blister pack is made of polyethylene terephthalate resin (PET), polyvinyl chloride resin (PVC), polystyrene resin (PS), polypropylene resin (PP), etc. Plastic sheet is used.

  In addition to the plastic sheet, a laminated film may be used for a soft blister pack (foam fill seal).

  As the lid material, sterilized paper obtained by processing steam-sterilized virgin pulp 100% non-coated paper, ultra-fine polyethylene fiber and a sheet bonded with high heat are used.

  The contents are taken out from the blister pack by tearing the lid, or peeling the adhesive part between the lid and the bottom, or peeling the adhesive layer of the laminated film having easy peel properties. Etc.

  Thus, conventionally, first, the contents are first stored in a blister packaging bag capable of steam sterilization, and after steam sterilization and drying, pillow packaging is performed using a packaging material having gas barrier properties and light shielding properties (UV cut). Commercialized.

  However, the blister packaging bag described above and the double packaging form in which pillow packaging is further performed require a complicated manufacturing process and a long manufacturing time, and material costs and manufacturing costs increase.

  Furthermore, it takes a lot of time to open the bag at the time of use in a hospital, and the amount of garbage to be discarded increases, resulting in a disposal problem.

  The present invention is intended to solve such problems of the prior art, is capable of steam sterilization, has a gas barrier property, has a light shielding property (UV cut), and is sealed when the lid is opened. An object of the present invention is to provide an environmentally friendly packaging bag that has good openability without tearing of the laminated film from the surface, has high productivity, is inexpensive, has excellent convenience, and is environmentally friendly.

  The present invention has been made to solve the above problems, and the invention according to claim 1 of the present invention is a bag main body (1) made of a gas barrier material having a recess for storing the contents (5). ), A sterilization lid (2) made of sterilized paper that is sealed in the folded portion (8) of the opening of the bag body (1) and closes the recess for storing the contents (5), and further for the sterilization A packaging bag (A) characterized in that a completely sealing lid (3) made of a gas barrier material is provided so as to cover the lid (2).

  The invention according to claim 2 of the present invention is the packaging bag (A) according to claim 1, wherein the gas barrier material is a base material layer (10) made of a synthetic resin material and a vapor-deposited thin film layer made of an inorganic oxide. A packaging bag (A) comprising a laminate in which (11) and a sealant layer (12) having an easy peel property are sequentially laminated.

  The invention according to claim 3 of the present invention is the packaging bag (A) according to claim 2, wherein the inorganic oxide comprises any one of aluminum oxide, silicon oxide, and magnesium oxide. A).

  The invention according to claim 4 of the present invention is the packaging bag (A) according to any one of claims 1 to 3, wherein the bag body (1) and the gas barrier material of the completely sealing lid member (3). Is a packaging bag (A) characterized by having a light-shielding property (UV cut).

  The invention according to claim 5 of the present invention is the packaging bag (A) according to any one of claims 1 to 4, wherein an oxygen scavenger (4) is affixed to the complete sealing lid (3). This is a packaging bag (A).

  The packaging bag of the present invention is sealed to a bag body made of a material having a gas barrier property and a light-shielding property (UV cut) having a recess for storing contents, and a folded portion of the opening of the bag body. A sterilization lid made of sterilized paper that closes the recess, and a completely sealing lid made of a material having gas barrier properties and light shielding properties (UV cut) are provided so as to cover the sterilization lid. It can be steam sterilized, has a gas barrier property, has a light shielding property (UV cut), and has a good openability without tearing the laminated film from the sealing surface when the lid is opened. It is highly productive, inexpensive, convenient and environmentally friendly.

  Embodiments of the present invention will be described in detail with reference to FIGS.

  1 is a side sectional view showing an embodiment of a packaging bag (A) according to the present invention, FIG. 2 is a plan view of FIG. 1, and FIG. 3 is a packaging bag (A) according to the present invention. It is a sectional side view which shows one Example of a layer structure of a bag main body (1) and the cover material (3) for complete sealing.

  As shown in FIG. 1, a packaging bag (A) according to the present invention includes a bag body (1) made of a gas barrier material having a recess for storing the contents (5), and an opening of the bag body (1). A sterilization lid (2) made of sterilized paper that is sealed by the folded portion (8) and closes the concave portion for storing the contents (5), and a gas barrier so as to cover the sterilization lid (2). A completely sealing lid material (3) made of a conductive material is provided.

  The bag main body (1) is formed by bending the inner side of the roll-shaped gas barrier material inside and bending the Z-shape so that the vicinity of the center of both sides is pushed in from both sides, and the same as the flow direction of the roll. A recess for storing contents is formed in the direction.

  Thus, since the storage part for the contents (5) is formed in the same direction as the flow direction of the roll, the contents (5) can be filled at high speed.

  The concave portion for storing the contents (5) has a bag shape and is not formed by vacuum forming or the like as in a blister pack, so there is no deterioration in gas barrier properties, and the contents (5 that require gas barrier properties) ) Can be stored.

  Moreover, the folding | returning part (8) is provided over the perimeter of the opening part of the bag main body (1), and it is devised so that the sealing with the cover material performed by a post process can be performed easily.

  After the formed storage portion is filled with the contents (5), a sterilization cover (2) made of sterilized paper is covered on the bag body (1) and both ends are vertically sealed.

  At this time, the end portion in the width direction of the sterilization lid (2) is located inside the end portion in the width direction of the folded portion (8) of the bag body (1) so that the unsealed portion having a predetermined width It is necessary to leave (7) in the folded portion (8) of the bag body (1).

  That is, the cover for sterilization (2) to be performed in a later step is covered with a cover for complete sealing (3) made of a gas barrier material, and the folded portion (8) of the opening of the bag body (1) This is to completely seal the inside of the packaging bag (A).

  Next, the bag body (1) is laterally sealed and cut to obtain sterilization bags containing the contents one by one. At this time as well, the flow direction (pitch) of the sterilization lid (2) is the same as described above. The unsealed portion (7) having a predetermined width is placed on the bag body (7) so that the end in the direction) is on the inner side than the end in the flow direction (pitch direction) of the folded portion (8) of the bag body (1). It is necessary to leave the folded portion (8) of 1).

  Next, the sterilization bag containing the obtained contents is subjected to steam sterilization with a steam sterilization apparatus, dried, and then set in another packaging machine.

  This packaging machine is provided with a mechanism for gripping and transporting the unsealed portions (7) of the bags one by one by a chuck so that the unsealed portions (7) can be surely sealed.

  In such a packaging machine, a completely sealing lid (3) made of a roll-shaped gas barrier material is mounted, covered on a sterilizing lid (2) made of sterilized paper, and vertically sealed at both ends. Next, the flow direction (pitch direction) is horizontally sealed and cut to obtain a completely sealed packaging bag (A) having a gas barrier property containing the contents, each of which has been subjected to steam sterilization.

  At this time, in order to improve the performance of the oxygen gas barrier property in particular, an oxygen scavenger can be attached to the sealing surface side of the complete sealing lid member (3) made of a gas barrier material.

  The bag body (1) and the sterilization lid material (2), or the sealing method between the bag body (1) and the completely sealing lid material (3) includes an adhesive method and a heat method. However, in consideration of workability, a heat seal method using heat is preferable.

  Next, the gas barrier material used for the bag body (1) and the completely sealing lid member (3) includes a base material layer (10) made of a synthetic resin material and a vapor-deposited thin film layer (11 made of an inorganic oxide). ) And a sealant layer (12) having an easy peel property.

The material used for the substrate layer (10) is not particularly limited, but a single film and various laminated films can be used in consideration of processability and the like.

  For example, polyesters such as polyethylene terephthalate (PET), polyethylene naphthalate (PEN), polybutylene terephthalate (PBT), polyolefins such as polyethylene (PE), polypropylene (PP), polystyrene (PS), nylon-6, nylon Polyamide (PA) such as -66, polycarbonate (PC), polyacrylonitrile (PAN), polyimide (PI), polyvinyl chloride (PVC), polyvinylidene chloride (PVDC), polyvinyl alcohol (PVA), ethylene-vinyl alcohol A polymer (EVOH), polyether sulfone (PES), polymethyl methacrylate (PMMA), or a copolymer thereof is an unstretched or stretched film.

  Usually, these are processed into a film and used, especially from the viewpoints of heat resistance, strength, cost, etc., polyethylene terephthalate film (PET) and polyamide film (PA) arbitrarily stretched in the biaxial direction. It is preferable to use it.

  The thickness of the substrate layer (10) is preferably in the range of 3 to 200 μm, more preferably in the range of 6 to 30 μm, in consideration of processability.

  Next, as the vapor-deposited thin film layer (11) of the inorganic oxide, it is basically possible to use a metal oxide, for example, aluminum, silicon, magnesium, calcium, potassium, tin, sodium, boron. , Oxides of titanium, lead, zirconium, yttrium, or a mixture thereof.

  In general, aluminum oxide, silicon oxide, and magnesium oxide are preferably used from the viewpoint of transparency, physical properties, and productivity.

  As a method for forming such a deposited thin film layer (11), a vacuum deposition method, a sputtering method, or the like can be used. However, in consideration of productivity, the vacuum deposition method is preferable.

  There are three types of vacuum deposition methods, depending on the form of the body to be vapor-deposited. 1) Batch method: vapor deposition method of molded products, 2) take-up semi-continuous method: vacuum for roll-shaped film (web) After unwinding, vapor deposition, and winding in the system, return to the atmospheric system again and take out the vapor deposition product. 3) Unwinder (unwinding device) for roll type film (web) ) And a rewinder (winding device) are arranged in the atmospheric system, and a vapor deposition drum and an evaporation source are arranged in a vacuum system to vaporize the evaporated substance on a roll film (web). This is a completely continuous method called a to-air method and has a feature of high productivity.

  When evaporating a vaporized material on a roll-shaped film (web), a take-up semi-continuous method is particularly widespread. Describes the internal structure.

  First, the constituent elements are a roll film (web), an evaporation source, an evaporation substance, a vapor deposition drum, a vacuum system, an unwinder (unwinding device), a rewinder (winding device), a guide roll, and the like.

Next, the outline of the work process will be described. First, as a preparatory step, the door of the vacuum evaporation apparatus is opened, a roll-shaped film (web) is set in the unwinder (unwinding apparatus), and it is arranged between the unwinder and the evaporation drum. The web is caused to travel to the vapor deposition drum through a guide roll that is wound around the rewinder (winding device) via a guide roll disposed between the web and the rewinder (winding device). Preparation of vapor deposition of the evaporating substance on is completed.

  Next, the door of the vacuum deposition apparatus is closed, and the vacuum suction chamber in the vacuum deposition apparatus and the vacuum deposition chamber divided by the partition walls are set to a predetermined vacuum environment by a vacuum pump, and the web is unwound from the unwinder. The evaporating substance is evaporated on the web by evaporating the evaporating substance from the evaporation source disposed at the lower part of the evaporating drum on the web that has been run through the guide roll.

  Since the vapor deposition drum is cooled, the vaporized substance is recrystallized and fixed on the web, and the vapor deposited on the rewinder side guide roll is wound around the rewinder.

  The internal structure of the vacuum deposition apparatus is divided into a vacuum suction constant pressure chamber and a vacuum deposition chamber by partition walls. The vacuum suction constant pressure chamber is composed of an unwinder, guide roll, tension control device, speed control device, position control device, and vapor deposition drum. Some rewinders are arranged.

In the vacuum deposition chamber, a part of the deposition drum, the evaporation source, its heating device, and the like are arranged, and the vacuum suction constant pressure chamber has a degree of vacuum of 1 by a vacuum pump attached to the periphery of the vacuum deposition apparatus main body. × 10 ⁰ MPa about, the vacuum deposition chamber provided via the partition wall is set to a degree 1 × 10 ^-2 MPa (SI units).

  Since the two chambers are divided by the partition walls, impurities (dust) such as gas generated from the web in the vacuum suction constant pressure chamber are unlikely to adversely affect the deposition in the vacuum deposition chamber.

  On the contrary, the radiant heat from the evaporation source arranged in the vacuum deposition chamber has little influence on the vacuum suction constant pressure chamber, so that the influence of the heat on the web is small.

  The vacuum deposition method is also a heating method: 1) Indirect resistance method, 2) Direct resistance heating method (wire feed method), 3) High frequency induction heating method, 4) Electron beam method (Electoron Beam, EB method for short) 4 There are two methods, but when the evaporated substance uses an insulating metal oxide such as silicon oxide or aluminum oxide, the electron beam method with high energy conversion efficiency is optimal.

  The wound-up electron beam vacuum deposition method is a method in which the evaporative material is directly irradiated with an electron beam and scanned on the surface of the evaporative material, and the surface of the evaporative material is heated. And evaporating the evaporated substance.

  Although the thickness of this vapor deposition thin film layer (11) is suitably selected by the end use of a packaging bag (A), it is preferable to exist in the range of 5-400 nm.

  If the film thickness is less than 5 nm, a uniform film cannot be provided, so that sufficient gas barrier properties cannot be obtained. If the film thickness exceeds 400 nm, flexibility is lost, and vapor deposition film is caused by external factors such as bending and tension. It is not preferable because cracks and peeling easily occur.

  As described above, the vapor-deposited film provided with the vapor-deposited thin film layer (11) on the base material layer (10) and the sealant layer (12) having an easy peel property are passed through the adhesive layer (not shown). Lamination is performed to obtain a gas barrier material.

As the sealant layer (12) having the easy peel property, the sealant layer (12) needs to be sealed in order to maintain the storage stability of the contents, which is the role of the packaging bag (A). 12) It is necessary that the surfaces are reliably sealed and can be easily opened when the bag (A) is opened at the same time.

  In order to satisfy such requirements, various functions are imparted to the easy-peel sealant layer (12), one of which is the design of an easy-opening mechanism, examples of which include an interface peeling mechanism, Examples include an interlayer peeling mechanism and a cohesive peeling mechanism.

  As the sealant layer (12) having such an easy-peel property, a biaxially stretched polyethylene terephthalate film (PET), a stretched polypropylene film (OPP), or the like is used for the support, and the sealant is mainly composed of ethylene / vinyl acetate. Polymer based resins are used, and in addition, tackifiers, slip agents and the like are added.

  Moreover, the thickness of the sealant layer (12) having the easy peel property is preferably within a range of 20 to 150 μm, and more preferably within a range of 30 to 70 μm.

  Next, an adhesive for lamination such as polyurethane, polyester, epoxy, polyacryl, polyvinyl acetate, cellulose, etc. can be used for the adhesive layer.

  The lamination method may be a known method such as a dry lamination method, a non-solvent dry lamination method, a hot melt lamination method, or an extrusion lamination method.

  For example, the dry lamination method includes three sections: a coating unit that applies an adhesive on a film, a drying device, and a nip roller unit, and an unwinding, winding, and tension control system.

  The coating portion generally employs a gravure coating method or a reverse coating method.

  As the lamination adhesive, a solvent type adhesive or a solventless type adhesive is used. However, when a solventless type adhesive is used, a drying apparatus is not necessary, and this is called a non-solvent dry lamination method. .

  The hot-melt lamination method is a method in which a hot-melt adhesive such as a heat-melted ethylene-vinyl acetate copolymer (EVA) is applied on a film, and another film is immediately laminated.

  The extrusion lamination method involves heating a thermoplastic resin such as polyethylene or polypropylene, melting it in a cylinder called a cylinder, extruding it by applying pressure with a screw, and forming a narrow slit called a T die at the tip of the cylinder. The resin melted in the form of a curtain is extruded and laminated into a film.

  As described above, the method of laminating the deposited film and the sealant layer (12) includes a dry lamination method, a non-solvent dry lamination method, a hot melt lamination method, and an extrusion lamination method. In view of cost and the like, the dry lamination method is preferable.

  As another lamination method, a sandwich lamination method can also be used.

  Next, a light-shielding (UV cut) ink layer (not shown) is applied to the gas barrier material by a method such as printing, and the performance of shielding ultraviolet rays can be imparted to the packaging bag (A).

  There are three types of ultraviolet rays: UV-A having a wavelength of 380 to 320 nm, UV-B having a wavelength of 320 to 280 nm, and UV-C having a wavelength of 280 to 200 nm. Among them, measures against UV-A and UV-B are necessary.

  In general, when ultraviolet rays are cut, the base material layer (10) is coated with an ultraviolet scattering agent that reflects or scatters ultraviolet rays, or an ultraviolet absorber that absorbs ultraviolet rays and releases them by chemically changing to heat. There is a way.

  In the packaging bag (A) of the present invention, an ultraviolet reflection / scattering agent such as zinc oxide, titanium dioxide, kaolin, calcium carbonate, talc or an ultraviolet absorber such as hydroxybenzophenone is used as an ink. be able to.

  As a printing method for providing a light-shielding (UV cut) ink layer, for example, a known printing method such as a gravure printing method, a silk screen printing method, or a flexographic printing method can be used, but copper on a steel cylinder surface is used. Plating is applied to form a base, a release layer is provided on the copper plating surface, copper plating is performed, and the surface is mirror-polished to form a recess (cell) by engraving or corrosion. A gravure printing method is preferable, in which the printing ink in the cell is transferred to the base material layer (10), and a tone can be printed in a colorful manner and has a high appealing effect.

  In addition, the gas barrier material may further include a printing layer (not shown) such as characters and patterns, an anchor coating layer (not shown), and the like.

  When the printing layer is provided on the base material layer (10), the printing surface of the base material layer (10) can be printed on either the front or back side. However, as in the case of printing on a general plastic film bag, Considering the friction resistance, weather resistance, etc., it is preferable to provide a print layer with a beautiful pattern on the back surface of the base material layer (10) for the purpose of improving the sales promotion effect of the product.

  In particular, in the packaging bag (A) of the present invention, the bag body (1) is printed on the back surface of the base material layer (10), and the complete sealing lid (3) is the base material layer ( It is preferably provided on the surface of the deposited thin film layer (11) provided in 10).

  As the printing ink for forming the printing layer, a color material composed of a pigment or a dye that gives color to the ink, a resin that adheres to the printing medium while dispersing and holding the color material in fine particles, and the resin are used. A vehicle composed of a solvent that can stably dissolve, disperse the pigments and dyes, maintain the fluidity of the ink, and transfer an appropriate amount of ink from the printing plate, and further disperse the coloring material. The pigment is formed from an auxiliary agent such as a surfactant for the purpose of improving color development, preventing precipitation, and improving fluidity. In particular, the colorant is preferably a pigment having good weather resistance.

  The printing method for providing the printing layer uses, for example, a known printing method such as a gravure printing method, a silk screen printing method, a flexographic printing method, an offset printing method, as in the printing method for providing a light-shielding (UV cut) ink layer. However, a copper surface is formed by applying copper plating on the surface of an iron cylinder (cylinder), providing a peeling layer on the copper plating surface, and further copper plating, and then polishing the surface into a mirror surface. Gravure printing that creates concave parts (cells) by engraving and corrosion methods, transfers printing ink in the cells to the base material layer (1), can be printed colorfully, and has a high appealing effect. The method is preferred.

In addition, when printing on the base material layer (10), if necessary to improve the adhesion between the base material layer (10) and the ink, ozone treatment is performed on the printing surface side of the base material layer (10). Pretreatment such as corona treatment is preferably performed, and an anchor coating agent or the like may be further coated.

  Examples of the anchor coat agent include isocyanate-based (urethane-based), polyethyleneimine-based, polybutadiene-based, and organic titanium-based anchor coat agents, or polyurethane-based, polyacrylic-based, polyester-based, epoxy-based, and polyvinyl acetate-based. , Cellulosic, and other lamination adhesives can be used.

  As the method for coating the anchor coating agent, a known gravure roll coating method, reverse roll coating method, bar coating method, dropping method, or the like can be used.

  Next, in the layer structure of the gas barrier material used for the bag body (1) of the packaging bag (A) of the present invention, a primer layer (between the substrate layer (10) and the deposited thin film layer (11)). When not shown, it becomes possible to improve the adhesiveness between the base material layer (10) and the vapor deposition thin film layer (11), and the base material layer (10) and the vapor deposition thin film layer (11) after steam sterilization are provided. ) Can be prevented from occurring.

  A composition comprising a polyester polyol or acrylic polyol, an isocyanate compound, and a silane coupling agent can be preferably used as the primer layer.

  Examples of the polyester polyol include terephthalic acid, isophthalic acid, phthalic acid, methylphthalic acid, trimellitic acid, pyromellitic acid, adipic acid, sebacic acid, succinic acid, maleic acid, fumaric acid, tetrahydrophthalic acid, methyltetrahydrophthalic acid, Acid raw materials of hexahydrophthalic acid and their reactive derivatives, ethylene glycol, propylene glycol, 1,3-butanediol, 1,4-hexanediol, diethylene glycol, dipropylene glycol, 1,4-cyclohexanedimethanol, neo Of polyester resins obtained by known production methods from alcohol raw materials such as pentyl glycol, bishydroxyethyl terephthalate, trimethylol methane, trimethylol propane, glycerin and pentaerythritol Those having 2 or more hydroxyl groups in the end, is intended to react with the isocyanate groups of the isocyanate compound added later.

  The acrylic polyol is a polymer compound obtained by polymerizing an acrylic acid derivative monomer, or a polymer compound obtained by copolymerizing with an acrylic acid derivative monomer and other monomers, and having a hydroxyl group at the terminal, It reacts with the isocyanate group of the isocyanate compound added later.

  Among them, an acrylic polyol obtained by polymerizing an acrylic acid derivative monomer such as ethyl methacrylate, hydroxyethyl methacrylate, hydroxypropyl methacrylate, or hydroxybutyl methacrylate alone, or an acrylic polyol copolymerized by adding other monomers such as styrene is preferably used. .

  In consideration of reactivity with an isocyanate compound, the hydroxyl value is preferably between 5 and 200 (KOHmg / g).

  Next, the isocyanate compound is added in order to improve the adhesion with the base material layer (10) and the deposited thin film layer (11) by a urethane bond formed by reacting with a polyester polyol or an acrylic polyol. Acts as a crosslinking agent or curing agent.

  As such an isocyanate compound, monomers such as aromatic tolylene diisocyanate, diphenylmethane diisocyanate, aliphatic xylene diisocyanate, hexadiene isocyanate, isophorone diisocyanate, and polymers and derivatives thereof are used. Used alone or as a mixture.

  Next, the sterilized paper used for the sterilization lid (2) is sterilized paper obtained by processing uncoated paper with 100% virgin pulp that can be steam sterilized, or a sheet that is bonded to ultrafine polyethylene fibers by applying high heat. Can be used.

  Further, in order to completely remove oxygen in the completely sealed packaging bag (A) containing the contents (5) subjected to the steam sterilization treatment, an oxygen scavenger (4) is attached to the sealing surface side of the gas barrier material. be able to.

  As the oxygen scavenger (4), various types of oxygen scavengers (4), such as iron-based ones, can be considered. Different types may be used.

  For example, the oxygen scavenger (4) is roughly classified into iron-based and organic-based, and iron-based includes iron powder or iron compound.

  There are iron-based irons that absorb oxygen only when they come into contact with moisture-dependent so-called high-humidity air, and those that start to absorb oxygen at the same time as they touch air, such as self-reactive types.

  In addition, the organic oxygen scavenger (4) has an organic main component as a self-reactive type, such as ascorbic acid, ascorbate, porphyrin complexes, macrocyclic polyamine complex, and the like.

  Furthermore, there are an oxygen absorption type and a composite function type that generates carbon dioxide simultaneously with oxygen absorption. In general, when kneaded into a synthetic resin, an economical iron system is preferable.

  In the following, the present invention will be described in more detail with reference to examples, but the present invention is not limited to these and is applied to a wider range.

<Example 1>
As shown in FIG. 3, the gas barrier material used for the bag body (1) constituting the packaging bag (A) according to the present invention has a biaxially stretched polyamide film (15 μm thick) on the base material layer (10). ONy) was used.

  On the base material layer (10), a light-shielding (UV cut) ink layer composed of a character / design printing layer and hydroxybenzophenone was provided by a gravure printing method.

  Next, the vapor deposition thin film layer (11) which consists of an inorganic oxide which consists of aluminum oxide with a thickness of 12 nm was laminated | stacked with the vacuum deposition apparatus of the electron beam heating system, and the vapor deposition film which consists of inorganic oxides was obtained.

Furthermore, 3.5 g / m ² (solid content) of a polyurethane-based adhesive (A525 / A52 manufactured by Mitsui Takeda Chemical Co., Ltd.) was applied to the surface of the vapor-deposited thin film layer (11) of the vapor-deposited film, and an easy peel sealant layer ( 12), an unstretched polypropylene film (CPP) (TP-9, manufactured by Showa Denko Plastic Products Co., Ltd.) having a thickness of 50 μm was used and laminated by a dry lamination method.

  In addition, as the gas barrier material used for the completely sealing lid (3), a biaxially stretched polyethylene terephthalate film (PET) having a thickness of 16 μm was used for the base material layer (10).

  On the base material layer (10), a light-shielding (UV cut) ink layer composed of a character / design printing layer and hydroxybenzophenone was provided by a gravure printing method.

  Next, the vapor deposition thin film layer (11) which consists of an inorganic oxide which consists of aluminum oxide with a thickness of 12 nm was laminated | stacked with the vacuum deposition apparatus of the electron beam heating system, and the vapor deposition film which consists of inorganic oxides was obtained.

Furthermore, 3.5 g / m ² (solid content) of a polyurethane-based adhesive (A525 / A52 manufactured by Mitsui Takeda Chemical Co., Ltd.) was applied to the surface of the vapor-deposited thin film layer (11) of the vapor-deposited film, and an easy peel sealant layer ( 12), an unstretched polypropylene film (CPP) having a thickness of 35 μm (TP-9, manufactured by Showa Denko Plastic Products Co., Ltd.) was used and laminated by a dry lamination method.

  Next, the inner surface side of the gas barrier material for the bag-shaped bag body (1) is turned inside, the center vicinity of both side surfaces is pushed in from both sides and bent into a Z shape, and the same as the flow direction of the roll. A recess for storing contents was formed in the direction to form a bag body (1) having a bag shape.

  Moreover, the folding | turning part (8) was provided over the perimeter of the opening part of the bag main body (1) so that the sealing with the lid | cover material performed by a post process could be performed easily.

  After the formed storage part is filled with the injection needle pack as the contents (5), the sterilization lid (2) made of sterilized paper (trade name DuPont Tyvek R manufactured by DuPont, USA) is attached to the bag body (1). The top and bottom ends were vertically sealed.

  At this time, an unsealed portion having a width of 10 mm is formed such that the end portion in the width direction of the sterilization lid (2) is inside the end portion in the width direction of the folded portion (8) of the bag body (1). Was left on the folded portion (8) of the bag body (1).

  Next, the bag body (1) is laterally sealed, and at this time, the end in the flow direction (pitch direction) of the sterilization lid (2) is the flow direction of the folded portion (8) of the bag body (1) ( A 10 mm wide unsealed portion is left in the folded portion (8) of the bag body (1) so as to be inside from the end in the pitch direction), and a sterilization bag with a needle pack is obtained. It was.

  Next, the obtained sterilization bag with a needle pack was subjected to steam sterilization using a steam sterilization apparatus, dried, and then set in another packaging machine.

  By this packaging machine, the sterilization lid made of the sterilized paper is mounted with the gas barrier material for the roll-shaped complete sealing lid (3) to which the iron-based oxygen scavenger (4) is previously attached. (2) Cover the top and vertically seal both ends, and finally cut the flow direction (pitch direction) to the horizontal seal and cut, and the bag body (1) and the completely sealing lid (3) are side seals A completely sealed packaging bag having a gas barrier property in an injection needle pack, which was completely sealed at the part (6) and finished with each steam sterilization treatment, was obtained.

As described above, the packaging bag (A) according to the present invention is a single packaging form, but the combination of the bag body (1) with gas barrier properties and the sterilization lid (2) made of sterilized paper, Steam sterilization is possible, and after the completion of the steam sterilization, the gas barrier sterilization lid (3) is completely sealed.

  Moreover, since the UV cut ink is printed on the bag main body (1) and the completely sealing lid member (3), the packaging bag (A) of the present invention has a light shielding property (UV cut), The contents (5) do not change with time, and the easy-peel sealant film prevents the laminated film from tearing from the side seal part (6) surface when the lid (3) is opened. It has sex.

  Further, the method of forming the storage portion for storing the contents (5) is not a vacuum forming method but a bag form formed by folding the bag main body film, and further the storage portion is in the same direction as the flow direction of the film. Since the content (5) can be filled at a high speed to form, the productivity is high.

  Further, since the packaging bag (A) of the present invention is in a single packaging form, the manufacturing process is simple, the productivity is high, the amount of material used is small, and the manufacturing cost is low.

  Further, the packaging bag (A) of the present invention is convenient because it does not require time and effort when used in a hospital or the like, and it is also environmentally friendly with a small amount of waste to be discarded.

<Example 2>
As shown in FIG. 3, the gas barrier material used for the bag body (1) constituting the packaging bag (A) according to the present invention is a biaxially stretched polyethylene terephthalate film having a thickness of 16 μm on the base material layer (10). (PET) was used.

  On the base material layer (10), a light-shielding (UV cut) ink layer comprising a character / picture printing layer and zinc oxide was provided by a gravure printing method.

  Next, a vapor deposition film made of an inorganic oxide was obtained by laminating a vapor deposition thin film layer (11) made of an inorganic oxide made of silicon oxide having a thickness of 12 nm by an electron beam heating type vacuum vapor deposition apparatus.

Furthermore, 3.5 g / m ² (solid content) of a polyurethane-based adhesive (A525 / A52 manufactured by Mitsui Takeda Chemical Co., Ltd.) was applied to the surface of the vapor-deposited thin film layer (11) of the vapor-deposited film, and an easy peel sealant layer ( 12), an unstretched polypropylene film (CPP) (TP-9, manufactured by Showa Denko Plastic Products Co., Ltd.) having a thickness of 50 μm was used and laminated by a dry lamination method.

  As the gas barrier material used for the completely sealing lid (3), a biaxially stretched polyamide film (ONy) having a thickness of 15 μm was used for the base material layer (10).

  On the base material layer (10), a light-shielding (UV cut) ink layer comprising a character / picture printing layer and zinc oxide was provided by a gravure printing method.

  Next, a vapor deposition film made of an inorganic oxide was obtained by laminating a vapor deposition thin film layer (11) made of an inorganic oxide made of silicon oxide having a thickness of 12 nm by an electron beam heating type vacuum vapor deposition apparatus.

Furthermore, 3.5 g / m ² (solid content) of a polyurethane-based adhesive (A525 / A52 manufactured by Mitsui Takeda Chemical Co., Ltd.) was applied to the surface of the vapor-deposited thin film layer (11) of the vapor-deposited film, and an easy peel sealant layer ( 12), an unstretched polypropylene film (CPP) having a thickness of 35 μm (TP-9, manufactured by Showa Denko Plastic Products Co., Ltd.) was used and laminated by a dry lamination method.

  Next, the inner side of the gas barrier material for the roll-shaped bag body (1) is turned inward, the center vicinity of both side faces is pushed in from both sides, and is bent into a Z shape, the same direction as the roll flow direction. A recess for storing contents was formed in the bag to form a bag-shaped bag body (1).

  Moreover, the folding | turning part (8) was provided over the perimeter of the opening part of the bag main body (1) so that the sealing with the lid | cover material performed by a post process could be performed easily.

  After the formed storage part is filled with the injection needle pack as the contents (5), the sterilization lid (2) made of sterilized paper (trade name DuPont Tyvek R manufactured by DuPont, USA) is attached to the bag body (1). The top and bottom ends were vertically sealed.

  At this time, an unsealed portion having a width of 7 mm is set so that the end portion in the width direction of the lid for sterilization (2) is inside the end portion in the width direction of the folded portion (8) of the bag body (1). Was left on the folded portion (8) of the bag body (1).

  Next, the bag body (1) is laterally sealed, and at this time, the end in the flow direction (pitch direction) of the sterilization lid (2) is the flow direction of the folded portion (8) of the bag body (1) ( A 7 mm wide unsealed part is left in the folded part (8) of the bag body (1) so as to be on the inner side from the end in the pitch direction), and a sterilization bag with one needle pack is obtained. It was.

  Next, the obtained sterilization bag with a needle pack was subjected to steam sterilization using a steam sterilization apparatus, dried, and then set in another packaging machine.

  By this packaging machine, the sterilization lid made of the sterilized paper is mounted with the gas barrier material for the roll-shaped complete sealing lid (3) to which the iron-based oxygen scavenger (4) is previously attached. (2) Cover the top and vertically seal both ends, and finally cut the flow direction (pitch direction) to the horizontal seal and cut, and the bag body (1) and the completely sealing lid (3) are side seals A completely sealed packaging bag (A) having a gas barrier property containing an injection needle pack that was completely sealed in the part (6) and subjected to steam sterilization one by one was obtained.

  As described above, the packaging bag (A) according to the present invention is a single packaging form, but the combination of the bag body (1) with gas barrier properties and the sterilization lid (2) made of sterilized paper, Steam sterilization is possible, and after the completion of the steam sterilization, the gas barrier sterilization lid (3) is completely sealed.

  Moreover, since the UV cut ink is printed on the bag main body (1) and the completely sealing lid member (3), the packaging bag (A) of the present invention has a light shielding property (UV cut), The contents (5) do not change with time, and the easy-peel sealant film prevents the laminated film from tearing from the side seal part (6) surface when the lid (3) is opened. It has sex.

  Further, the method of forming the storage portion for storing the contents (5) is not a vacuum forming method but a bag form formed by folding the bag main body film, and further the storage portion is in the same direction as the flow direction of the film. Since the content (5) can be filled at a high speed to form, the productivity is high.

  Further, since the packaging bag (A) of the present invention is in a single packaging form, the manufacturing process is simple, the productivity is high, the amount of material used is small, and the manufacturing cost is low.

In addition, the packaging bag (A) of the present invention is convenient and has little trouble when used in hospitals,
Furthermore, the amount of waste to be discarded is small and environmentally friendly.

It is side sectional drawing which shows one Example of the packaging bag which concerns on this invention. It is a top view of FIG. It is a sectional side view which shows one Example of the layer structure of the bag main body in the packaging bag which concerns on this invention, and the cover material for complete sealing.

Explanation of symbols

A ... packaging bag 1 ... bag body 2 ... sterilization lid 3 ... complete sealing lid 4 ... oxygen scavenger 5 ... contents 6 ... side seal 7 ... Unsealed part 8 ... Folded part 10 ... Base material layer 11 ... Deposition thin film layer 12 ... Sealant layer

Claims (5)

  A bag body made of a gas barrier material having a recess for storing contents, a sterilization lid made of sterilized paper sealed at the folded portion of the opening of the bag body and closing the recess for storing contents; and A packaging bag comprising a completely sealing lid made of a gas barrier material so as to cover a sterilizing lid.   2. The gas barrier material comprises a laminate in which a base material layer made of a synthetic resin material, a vapor-deposited thin film layer made of an inorganic oxide, and a sealant layer having an easy peel property are sequentially laminated. The packaging bag described.   The packaging bag according to claim 2, wherein the inorganic oxide is made of any one of aluminum oxide, silicon oxide, and magnesium oxide.   The packaging bag according to any one of claims 1 to 3, wherein the gas barrier material of the bag body and the completely sealing lid member has a light shielding property (UV cut).   The packaging bag according to any one of claims 1 to 4, wherein an oxygen scavenger is attached to the completely sealing lid member.

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