JP2013052904A - Packaging body - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a packaging body, which provides a high yield in manufacturing process by preventing deformation of a cylindrical body or generation of a non-adhered area by thermal adhesion.SOLUTION: In the packaging body 20 which is formed by disposing laminates 60 each having a thermally adhesive resin layer 63 as an innermost layer oppositely to each other and thermally adhering the peripheries thereof through thermal adhesion parts 21, a cylindrical body 24 of a resin molded article is inserted to a tubular pouring part 23 with a thermally adhered tip, which is protruded to the outside of the packaging body 20, and the thermally adhesion parts 21 on both sides of the pouring part 23 are protruded to the inside of the pouring part 23 to form contact parts 25a, 25b which abut on the cylindrical body 24.

Description

  The present invention relates to a package for packaging a fluid.

  Patent Documents 1 and 2 disclose conventional packages for packaging drugs. A package for hermetically sealing and storing a medicine is formed by arranging a laminated body having a heat-adhesive resin layer as an innermost layer facing each other and thermally bonding the periphery with a heat-bonding portion. Further, a medicine pouring part is provided on the periphery of the package, and the pouring part is attached by thermally bonding the outer periphery of the cylindrical body while sandwiching the cylindrical body of the resin molded product between the laminated bodies. Thereby, the front-end | tip of the cylindrical body which protrudes outside a package body can be opened, and a chemical | medical agent can be poured out via a cylindrical body.

JP 2002-284186 A JP 2005-245679 A

  However, according to the packaging body, there is a problem that the cylindrical body is deformed by heating and pressurization by thermal bonding, or an unbonded region is generated between the outer periphery of the cylindrical body and the inner periphery of the packaging body. . For this reason, there existed a problem that the yield in the manufacturing process of a package fell.

  In view of the above problems, an object of the present invention is to provide a package having a high yield in a manufacturing process by preventing deformation of a cylindrical body due to thermal bonding or generation of an unbonded region.

  In order to achieve the above object, the present invention is a package formed by arranging a laminate having a heat-adhesive resin layer as an innermost layer facing each other and thermally bonding the periphery with a heat-bonding portion, and facing outward. And a tubular pouring portion whose tip is thermally bonded and a tubular body of a resin molded product inserted into the pouring portion, and the thermal bonding portions on both sides of the pouring portion are the A protruding portion that protrudes to the inside of the extraction portion and contacts the cylindrical body is formed.

  According to this configuration, the protruding portion formed by protruding the heat-bonding portions on both sides of the pouring portion to the inside of the pouring portion contacts the cylindrical body, and heat on both sides of the pouring portion is formed inside the pouring portion. A gap formed between the bonded portion and the outer periphery of the cylindrical body is closed. Moreover, the tip of the pouring part into which the cylindrical body is inserted is thermally bonded, and the inside of the pouring part before opening is in a sealed state. Moreover, the content is poured out through the cylindrical body by cutting and opening the tip of the pouring part.

  Moreover, the present invention is characterized in that, in the package body having the above-described configuration, a plurality of the projecting portions are provided in the axial direction of the cylindrical body.

  Further, the present invention is characterized in that, in the package body configured as described above, the diameter of the cylindrical body is reduced toward the tip.

  Further, the present invention is characterized in that, in the package body configured as described above, a part of the cylindrical body is thermally bonded to the extraction portion.

  Further, the present invention is characterized in that in the packaging body configured as described above, a plurality of storage spaces for storing contents are communicably divided.

  According to the present invention, the tubular body of the resin molded product is inserted into the tubular pouring portion that protrudes outward and is thermally bonded at the tip, and the pouring portion is inserted into the thermal bonding portion on both sides of the pouring portion. By forming a protrusion that protrudes inward and abuts on the cylindrical body, the gap formed between the thermal bonding part on both sides of the extraction part and the outer periphery of the cylindrical body on the inner side of the extraction part Block. As a result, after opening the pouring part, the contents filled in the package body leak out from the gap formed between the thermal bonding part on both sides of the pouring part and the outer periphery of the cylindrical body. While preventing, the contents can be poured out from the tip of the cylindrical body. In addition, before opening the extraction portion, the tip of the extraction portion into which the cylindrical body is inserted is thermally bonded, and the inside of the extraction portion is in a sealed state. For this reason, it can prevent that external air penetrate | invades into the inside of a package body from the clearance gap formed between the heat bonding part of the both sides of the extraction | pouring part, and the outer periphery of a cylindrical body. Therefore, the cylindrical body and the inside of the packaging body can be kept in a sterile state until the heat-bonded pouring part is opened. Thereby, the deformation | transformation of the cylindrical body by heat bonding or generation | occurrence | production of a non-bonding area | region can be prevented, and the package body with a high yield in a manufacturing process can be provided.

The top view of the package which concerns on embodiment of this invention The top view which expands and shows the extraction | pouring part of the package which concerns on embodiment of this invention AA line sectional view of FIG. BB sectional view of FIG. The top view which shows the modification of the package which concerns on embodiment of this invention Sectional drawing which shows the layer structure of the laminated body which comprises the package which concerns on embodiment of this invention

  Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a plan view of the package 20.

  The packaging body 20 is a packaging body for storing medical drugs, and an upper portion of the packaging body 20 is provided with a hole portion 22 for suspending the packaging body 20, and a lower portion for dispensing contents. 23 and a storage space 28 for storing contents such as medicines is formed in the body portion. The package 20 is composed of a laminate 60 (see FIG. 6) including a base material layer 61, a barrier layer 62, and a thermal adhesive resin layer 63. The package 20 is formed by preparing two laminates 60 that have been cut in advance so that the lower side protrudes, facing the innermost heat-adhesive resin layer 63, and then thermally bonding the periphery with the heat-bonding portion 21. To do. After the contents are filled in the package 20 that is open with the upper part unbonded, the upper part of the package 20 is thermally bonded to be sealed in the package 20.

  FIG. 2 is an enlarged plan view showing the pouring portion 23, the pouring portion 23 projects outward from the lower side of the package 20, and the tip and both sides of the pouring portion 23 are thermally bonded by the thermal bonding portion 21. Has been. In addition, the thermal bonding portions 21 on both sides of the extraction portion 23 are formed with protruding portions 25 a and 25 b that protrude inward of the extraction portion 23. Thereby, the extraction | pouring part 23 becomes a tubular shape with which one part of the internal diameter narrowed by the protrusion parts 25a and 25b which oppose. A cylindrical tubular body 24 is inserted into the dispensing portion 23, and the projecting portions 25 a and 25 b abut against both sides of the tubular body 24.

  The cylindrical body 24 is pressed from the storage space 28 side to the lower end side and is inserted into the extraction portion 28. At this time, the cylindrical body 24 is held between the protruding portions 25 a and 25 b protruding inward from both sides of the extraction portion 23 and is stably held inside the extraction portion 23. A plurality of projecting portions 25 a and 25 b are provided in the axial direction of the cylindrical body 24, and the cylindrical body 2 is more stably held inside the extraction portion 23. In addition, the cylindrical body 24 is partially heat-bonded to the extraction portion 23 in a spot shape at the thermal bonding portion 27 after being inserted into the extraction portion 23. Thereby, there is almost no deformation | transformation by the heat | fever of the cylindrical body 24, and the cylindrical body 24 can be fixed in the extraction part 23. FIG. In addition, even if a deformation | transformation arises in the cylindrical body 24, since the cylindrical body 24 is sealed in the extraction part 23, a sterile state is maintained.

  By forming the inner diameter of the extraction portion 23 to be smaller than the outer diameter of the cylindrical body 24, the outer periphery of the cylindrical body 24 and the inner periphery of the extraction portion 23 are more closely attached, and the cylindrical body 24 is placed inside the extraction portion 23. Can be inserted. Moreover, the cylindrical body 24 is not limited to a cylindrical shape. For example, the cross-sectional shape of the cylindrical body 24 may be formed substantially the same as the cross-sectional shape of the inner periphery of the extraction portion 23. Thereby, the outer periphery of the cylindrical body 24 inserted and the inner periphery of the extraction | pouring part 23 can be stuck more closely. Moreover, the cylindrical body 24 can be easily inserted into the extraction | pouring part 23 by making the cylindrical body 24 into the taper shape which diameter-reduces as it goes to a front-end | tip.

  3 and 4 are a cross-sectional view taken along line AA and a cross-sectional view taken along line BB in FIG. As shown in FIG. 3, when two laminated bodies 60 are overlapped and both sides are thermally bonded by the thermal bonding portion 21, when the cylindrical body 24 is inserted into the dispensing portion 23, the inside of the dispensing portion 23 is poured. A gap 26 is formed between the thermal bonding portion 21 on both sides of the protruding portion 23 and the outer periphery of the cylindrical body 24. However, as shown in FIG. 4, the protrusions 25 a and 25 b come into contact with the cylindrical body 24 and close the gap 26 at the positions where the protrusions 25 a and 25 b are provided. Thereby, the contents filled in the package 20 can be prevented from leaking from the gap 26. In addition, by providing a plurality of projecting portions 25 a and 25 b in the axial direction of the cylindrical body 24, it is possible to further prevent leakage of the contents.

  In addition, notches 29 that are notches for opening are provided at lower portions on both sides of the pouring portion 23. When the extraction portion 23 is torn horizontally from the notch 29 and the extraction portion 23 is opened, the tip of the cylindrical body 24 is exposed to the outside. In addition to the notch 29, the opening means may be provided with a half cut line or a laser cut line in the opening direction. Thereby, the tearing direction of the pouring part 23 is determined, and the tip of the torn out pouring part 23 can be prevented from blocking the tip of the cylindrical body 24.

  Moreover, the inside of the extraction part 23 before opening is in a sealed state. For this reason, it is possible to prevent the outside air from entering the inside of the package 20 from the gap 26 formed between the thermal bonding portion 21 on both sides of the extraction portion 23 and the outer periphery of the cylindrical body 24. Therefore, the inside of the cylindrical body 24 and the package body 23 can be kept in a sterile state until the heat-bonded dispensing part 21 is opened.

  FIG. 5 is a plan view showing a modification of the package 20 of the present embodiment, and a partition 31 may be provided in the storage space 28 for storing the contents so that each room can be divided into a plurality of compartments. The partition part 31 can be formed so as to be cleaved by being sealed weaker than the heat bonding part 21. Thereby, a some chemical | medical agent can be mixed and the content can be poured out from the extraction part 23 immediately before use.

  FIG. 6 is a cross-sectional view showing the layer configuration of the laminate 60 that constitutes the package 20. The laminated body 60 constituting the package 20 is configured by sequentially laminating a base material layer 61 that is an outermost layer, a thermoadhesive resin layer 63 that is an innermost layer, and a barrier layer 62 that is an intermediate layer. Each layer is bonded with a dry laminate adhesive.

  When the packaging body 20 is subjected to physically and chemically severe conditions, the base material layer 61 has high sealing performance, puncture resistance (pinhole resistance), heat resistance, light resistance, and quality maintenance. , Workability, hygiene and the like.

  Examples of the base material layer 61 include low density polyethylene, medium density polyethylene, high density polyethylene, linear low density polyethylene, polypropylene, ethylene-propylene copolymer, ethylene-vinyl acetate copolymer, ionomer resin, ethylene-acrylic acid. Ethyl copolymer, ethylene-acrylic acid or methacrylic acid copolymer, methylpentene polymer, polybutene resin, polyvinyl chloride resin, polyvinyl acetate resin, polyvinylidene chloride resin, vinyl chloride-vinylidene chloride copolymer , Poly (meth) acrylic resin, polyacrylonitrile resin, polystyrene resin, acrylonitrile-styrene copolymer (AS resin), acrylonitrile-butadiene styrene copolymer (ABS resin), polyester resin, polyamide resin Resin, poly -Any known resin film or sheet such as sulfonate resin, polyvinyl alcohol resin, saponified ethylene-vinyl acetate copolymer, fluorine resin, diene resin, polyacetal resin, polyurethane resin, nitrocellulose, etc. Can be used.

  The heat-adhesive resin layer 63 may be any material that can be melted by heat and can fuse the opposing laminates 60 to each other. For example, low-density polyethylene, medium-density polyethylene, high-density polyethylene, linear (line Shape) Low density polyethylene, ethylene / α-olefin copolymer polymerized using metallocene catalyst (single site catalyst), polypropylene, ethylene / vinyl acetate copolymer, ionomer resin, ethylene-ethyl acrylate copolymer, Polyolefin resins such as ethylene-acrylic acid copolymer, ethylene-methacrylic acid copolymer, ethylene-propylene copolymer, methylpentene polymer, polyethylene or polypropylene are used for acrylic acid, methacrylic acid, maleic anhydride, fumaric acid, etc. Acid-modified polyolefin resin modified with unsaturated carboxylic acid It one not selected from may be used or two or more kinds. Preferable examples include linear low density polyethylene. The thickness of the heat-adhesive resin layer 63 is preferably about 10 μm to 100 μm, particularly preferably about 15 μm to 50 μm, considering heat sealability and the like.

The barrier layer 62 may be made of a metal such as aluminum or nickel, a film on which silicon oxide, alumina, or the like is deposited, or a heat resistant resin such as polyethylene terephthalate or polyethylene naphthalate. Alternatively, the barrier layer 62 may be omitted to form the soft laminate 60.

  The dry laminating adhesive firmly adheres the base material layer 61, the barrier layer 62, and the thermoadhesive resin layer 63 constituting the laminate 60 to prevent the occurrence of delamination. Examples of dry laminate adhesives include polyvinyl acetate adhesives, homopolymers such as ethyl acrylate, butyl, 2-ethylhexyl ester, or copolymers of these with methyl methacrylate, acrylonitrile, styrene, etc. Polyacrylic acid ester adhesives, cyanoacrylate adhesives, ethylene copolymer adhesives made of copolymers of ethylene and monomers such as vinyl acetate, ethyl acrylate, acrylic acid, methacrylic acid, etc., cellulose Adhesives, polyester adhesives, polyamide adhesives, polyimide adhesives, amino resin adhesives made of urea resin or melamine resin, phenol resin adhesives, epoxy adhesives, polyurethane adhesives, reactive type (Meth) acrylic adhesive, chloroprene rubber, nitrile Beam, styrene - rubber adhesive comprising a butadiene rubber, a silicone-based adhesive, an alkali metal silicate, may be used an inorganic adhesive or the like made of a low-melting-point glass or the like.

  According to this embodiment, the tubular body 24 of a resin molded product is inserted into the tubular extraction portion 23 that protrudes outward and is thermally bonded at the tip, and the thermal adhesion portions 21 on both sides of the extraction portion 23. By forming protrusions 25 a and 25 b that protrude inward of the extraction part 23 and abut against the cylindrical body 24, the protrusions 25 a and 25 b are heated on both sides of the extraction part 23 inside the extraction part 23. A gap 26 formed between the bonding portion 21 and the outer periphery of the cylindrical body 24 is closed. Thereby, after opening the extraction | pouring part 23, content can be poured out from the front-end | tip of the cylindrical body 24, preventing the content with which the inside of the package 20 was filled from leaking. . In addition, before opening the extraction portion 23, the tip of the extraction portion 23 into which the cylindrical body 24 is inserted is thermally bonded, and the inside of the extraction portion 23 is in a sealed state. For this reason, it can prevent that external air penetrate | invades into the inside of a package body from the clearance gap 26. FIG. Therefore, the cylindrical body 24 and the inside of the packaging body 20 can be kept in a sterile state until the heat-bonded dispensing portion 23 is opened. Thereby, the deformation | transformation of the cylindrical body 24 by heat bonding or generation | occurrence | production of a non-bonding area | region can be prevented, and the package 20 with the high yield in a manufacturing process can be provided.

  Further, by providing a plurality of projecting portions 25 a and 25 b in the axial direction of the cylindrical body 24, it is possible to further prevent the contents from leaking from the gap 26. Moreover, the cylindrical body 24 can be more stably held inside the extraction portion 23. Moreover, the cylindrical body 24 can be easily inserted into the inside of the extraction part 23 by forming the cylindrical body 24 into a tapered shape that decreases in diameter toward the tip. Further, by thermally bonding a part of the cylindrical body 24 to the extraction portion 23, the cylindrical body 24 is hardly deformed by heat, and the cylindrical body 24 can be fixed inside the extraction portion 23. .

  Moreover, the mixed type package 20 which mixes a some chemical | medical agent can be provided by dividing the storage space 28 which accommodates the content into two or more so that communication is possible.

  In addition, this invention is not limited to the said embodiment, In the self-supporting type packaging body 20, even if it makes the extraction | pouring part 23 protrude upward or laterally from the upper side or side edge of the packaging body 20, it is the same as that of the said embodiment. The effect of can be obtained.

  The present invention can be used for a package for packaging a medicine.

DESCRIPTION OF SYMBOLS 20 Package 21 Thermal bonding part 22 Hole part 23 Outgoing part 24 Cylindrical body 25a, 25b Protrusion part 26 Clearance 27 Thermal bonding part 28 Storage space 29 Notch 31 Partition part 60 Laminated body 61 Base material layer 62 Barrier layer 63 Thermal bonding Resin layer

Claims (5)

  A package formed by opposingly arranging a laminated body having a heat-adhesive resin layer as an innermost layer and thermally bonding the periphery with a heat-bonding portion, and having a tubular shape that protrudes outward and is thermally bonded A pour-out portion and a cylindrical body of a resin molded product that is inserted into the pour-out portion, and the heat-bonding portions on both sides of the pour-out portion protrude to the inside of the pour-out portion and are tubular A packaging body, characterized by forming a projecting portion in contact with the body.   The package according to claim 1, wherein a plurality of the protruding portions are provided in the axial direction of the cylindrical body.   The package according to claim 1 or 2, wherein the cylindrical body is reduced in diameter as it goes toward the tip.   The package according to any one of claims 1 to 3, wherein a part of the cylindrical body is thermally bonded to the extraction portion.   The packaging body according to any one of claims 1 to 4, wherein a plurality of storage spaces for storing contents are communicably divided.

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