JP2008155956A - Solid material package - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a solid material package which is satisfactory from production and economic points of view for easily and safely taking out a solid material. <P>SOLUTION: This package 1 comprising the first laminated body 7 and the second laminated body 9 which have a thermoplastic resin layer 5 on the back face of a base material 3 forms a storage part 13 for storing a seal part 10 and a solid tablet 11 by heat sealing four sides after the body 7 and the body 9 are overlaid with their layer 5 facing each other. The front face of the body 7 is provided with an easy open area 15 where many scars 15a not going through a biaxial stretching polyester resin film 3 are formed vertically crossing roughly the center of the storage part 13. The layer 5 on the body 7 side is formed by a melt extrusion process. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a package for packaging solids such as pharmaceuticals and foods such as tablets and capsules.

  When sealing solid preparations such as tablets and capsules and solids such as food with a packaging film, the solid form such as tablets and capsules is sandwiched between two films, and four or three sides are sealed. And a packaging form such as a strip packaging that seals the periphery of a solid material is used. In these packaging forms, the solid matter is taken out by gripping both sides of the opening cut formed in the seal portion of the film edge and tearing the film.

  Further, PTP (Press Through Pack) packaging in which a solid material is stored in a concave portion of a plastic molded sheet and a lid material such as aluminum foil is bonded and sealed is also used for the packaging of the solid material. In this case, the lid is broken by pushing the solid material with a finger from the molded sheet side, and the solid material inside can be taken out.

  However, the solid package described above has the following problems. First, in the method of sealing solids with a wrapping film, there are cases in which the seal portion cannot be gripped and teared with sufficient force when the fingertip force is weak, such as an elderly person, a child, or an injured person. It was. Also in PTP packaging, the contents may not be easily removed depending on the stiffness (strength) of the lid, and small pieces of the lid may be scattered as dust when opened, or this may be accidentally swallowed together with solid matter. There was also a risk of it. Further, when the perforation is formed so that a predetermined number of solids can be divided and carried, there is a risk that the finger may be damaged at the edge portion of the molded sheet broken along the perforation.

Therefore, various packages that can easily and safely take out solid materials have been proposed. For example, Patent Document 1 discloses an opening portion in which an opening knob is formed around a storage portion in which storage items are stored. By providing, the portable package body which improved the openability of the packaging film is disclosed. Further, Patent Document 2 discloses a PTP package in which contents are easily taken out by forming a notch in a part of the lid material facing the concave portion of the molded sheet. Furthermore, in Patent Document 3, a weak seal portion is provided in at least a part of the seal portion that seals the periphery of the solid matter storage portion, and the solid matter is grasped from the outside of the package and moved to the weak seal portion side. Thus, a solid packaging body is disclosed in which a weak seal portion is peeled off to extrude a solid.
Utility Model Registration No. 2605068 JP-A-6-278768 JP 2002-205767 A

  However, in the method of Patent Document 1, a space for providing an unsealing knob is required in addition to the solid material storage unit, so that the package becomes large, which is disadvantageous in terms of cost and portability. Moreover, in the method of patent document 2, while using a shaping | molding sheet, while becoming high cost, the danger of damaging a finger | toe at an edge part was not eliminated. Further, in the method of Patent Document 3, it may take time to move to the weak seal part depending on the size and shape of the solid material, which is the content, and there is still room for further improvement in terms of ease of opening. It had been.

  In view of the above problems, an object of the present invention is to provide a solid package that can easily and safely take out a solid material and that is excellent in terms of manufacturing and cost.

  In order to achieve the above object, the present invention is formed by a laminate including at least a base material and a thermoplastic resin layer that is an innermost layer, and includes a storage portion that encloses a solid substance, and a seal that closes the periphery of the storage portion. At least one of a scar or a through-hole that does not penetrate the base material and is covered with the thermoplastic resin layer. An easy-open region is provided, and the easy-open region can be broken by pressing a solid substance contained in the storage portion from the outside toward the easy-open region.

  Moreover, the present invention is characterized in that, in the solid packaging body having the above structure, the thermoplastic resin layer overlapping the easy-open region is formed by a melt extrusion method.

  Further, the present invention is the solid package of the above-described configuration, wherein the thermoplastic resin layer overlapping the easy-open region is formed of melt-extruded polyethylene or melt-extruded ethylene-methacrylic acid copolymer. It is a feature.

  Moreover, the present invention provides the solid package of the above configuration, wherein the laminate includes a first laminate in which at least one of the scar or the through hole is formed, and a second laminate in which the scar and the through hole are not formed. It is characterized by comprising.

  According to the present invention, in the solid packaging body having the above-described configuration, a barrier layer made of a metal or metal oxide thin film is provided between the base material of the first laminate and the thermoplastic resin layer. It is a feature.

  The present invention is characterized in that, in the solid packaging body having the above-described configuration, an intermediate layer is provided between the base material of the second laminate and the thermoplastic resin layer.

  According to the first configuration of the present invention, the flat portion of the storage portion is provided with an easy-opening region in which scratches or through-holes are formed and the breaking strength is reduced, so that the external portion faces the surface on which the easy-opening region is provided. The solid body is pressed to break the laminated body, whereby the packaging body can be easily opened and the solid body can be taken out.

  Moreover, according to the 2nd structure of this invention, in the solid packaging body of the said 1st structure, by forming the thermoplastic resin layer which overlaps with an easily open area | region by a melt extrusion method, with favorable heat-sealability It becomes a thermoplastic resin layer satisfying easy breakability.

  Further, according to the third configuration of the present invention, in the solid packaging body of the second configuration, the thermoplastic resin layer overlapping the easy-open region is melt-extruded polyethylene or melt-extruded ethylene-methacrylic acid copolymer. By forming with a polymer, it becomes a package which is more excellent in manufacturability and openability.

  Moreover, according to the 4th structure of this invention, in the solid packaging body of the said 1st thru | or 3rd structure, the 1st laminated body in which at least one of a scar or a through-hole is formed, a scar, By using two types of laminates of the second laminate in which no through-hole is formed, the insertion of the solid material between the first elongated laminate prepared in advance and the second laminate and heat sealing are performed simultaneously. The package can be manufactured continuously and efficiently.

  Moreover, according to the 5th structure of this invention, in a solid packaging body of the said 4th structure, by providing a barrier layer between the base material and thermoplastic resin layer of a 1st laminated body, a package body High water vapor barrier properties and gas barrier properties can be imparted.

  Further, according to the sixth configuration of the present invention, in the solid packaging body of the fourth or fifth configuration, by providing an intermediate layer between the base material of the second laminate and the thermoplastic resin layer. The package can be provided with high sealing performance, pinhole resistance, heat resistance, light resistance, quality maintenance, workability, hygiene, and the like.

  Hereinafter, the solid package of the present invention will be described with reference to the drawings. FIG. 1A is a schematic plan view showing a state in which a solid preparation is hermetically packaged in a solid packaging body according to the first embodiment of the present invention, and FIG. 1B is a cross-sectional view thereof (FIG. 1A AA ′ cross-section) of FIG. In addition, as for the package 1 of this invention, as shown in FIG. 1, the package 1 which mounts the solid formulation 11 may be cut | disconnected for every piece, and several pieces are connected through the perforation, for example. It may be a configuration.

  As shown in FIG. 1, the packaging body 1 of the present embodiment includes a first laminated body 7 and a second laminated body 9 in which a thermoplastic resin layer 5 is provided on the back surface of a base material 3, and the thermoplastic resin layer 5 is After the first laminated body 7 and the second laminated body 9 are stacked so as to face each other, the seal part 10 and the storage part 13 containing the solid preparation 11 are formed by heat-sealing four sides. In addition, an easy-open region 15 in which a large number of scratches 15 a that do not penetrate the base material 3 are formed in the plane portion of the storage unit 13 on the first laminate 7 side so as to cut through the substantially central portion of the storage unit 13. Has been. In addition, although the case where one solid preparation 11 is packaged in the storage unit 13 is illustrated here, a plurality of solid preparations 11 can be packaged in the storage unit 13.

  Next, the opening method of the package 1 of this embodiment is demonstrated. As shown in FIG. 2A, when the solid preparation 11 is pressed with the finger 18 from the second laminate 9 side, a pressing force F acts on the inside of the easy-open region 15 through the solid preparation 11. Since the rupture strength of the easy-open region 15 is reduced due to the scar 15a formed on the substrate 3, when the pressing force F is increased, the first laminate 7 is broken as shown in FIG. When the pressing is further continued, the broken portion is greatly expanded as shown in FIG. 2C, and the solid preparation 11 can be easily taken out.

  The package 1 according to this embodiment will be described in more detail. FIG. 3 is an enlarged cross-sectional view of the easy-open region 15 (inside the broken-line circle S in FIG. 1B) of the first laminate 7. The first laminate 7 has a three-layer structure in which an anchor coat layer 17 is laminated on the back surface of the base material 3, and a thermoplastic resin layer 5 is further laminated on the anchor coat layer 17.

  Since the base material 3 becomes a basic material constituting the package, and when a barrier layer (described later) made of a metal or metal oxide thin film is provided, the base material 3 becomes a base material for holding the barrier layer. It can withstand the conditions of forming and processing, and can be held well without impairing its properties. In addition, when manufacturing packaging, workability, heat resistance, slipperiness, pinhole resistance It is preferable that it is excellent in water vapor or gas barrier properties and other physical properties.

  As the base material 3 used in the present invention, a simple substance such as a biaxially stretched nylon film, a biaxially stretched polypropylene film or a biaxially stretched polyester resin film or a laminate thereof is used. Particularly preferably used. Specific examples of the biaxially stretched polyester resin film include polyethylene terephthalate resin, polybutylene terephthalate resin, polyethylene-2, 6-naphthalate resin, polybutylene-2, 6-naphthalate, and polycyclohexanedimethylene terephthalate resin. Various polyester resins can be used. In particular, it is preferable to use a biaxially stretched polyethylene terephthalate resin film or a biaxially stretched polybutylene terephthalate resin film having easy tearability.

  The biaxially stretched polyester resin film uses, for example, one or more of the above-mentioned polyester resins, and uses a film forming method such as an extrusion method, a cast molding method, a T-die method, a cutting method, and an inflation method. Using the above-mentioned various resins alone, or forming a multilayer co-extrusion film using two or more kinds of resins, and forming two or more kinds of resins into a film. A polyester-based resin film is manufactured by a method of forming a film by mixing in advance before forming, and further, for example, stretched uniaxially or biaxially using a tenter method or a tubular method A biaxially stretched polyester resin film can be used. As a film thickness of the base material 3, about 3-50 micrometers, More preferably, about 5-30 micrometers is desirable.

  When forming the base material 3, for example, film processability, heat resistance, weather resistance, mechanical properties, dimensional stability, antioxidant properties, slipperiness, mold release properties, flame retardancy, antifungal properties, etc. Various plastic compounding agents and additives can be added for the purpose of improving and modifying electrical characteristics, strength, etc., and the addition amount can be from a very small amount to several tens of percent depending on the purpose. Can be optionally added. In the above, as a general additive, for example, a lubricant, a crosslinking agent, an antioxidant, an ultraviolet absorber, a light stabilizer, a filler, a reinforcing agent, an antistatic agent, a pigment, and the like can be used. In this case, a modifying resin or the like can also be used.

  An antistatic coat layer may be provided on the surface of the base material 3 in order to prevent problems associated with the generation of static electricity and improve the suitability for laminating, bag making, filling and packing, and the like. As a method for forming the antistatic coating layer, for example, a resin is used as a main component of the vehicle, and one or more antistatic agents are added thereto, and further, a plasticizer, a stabilizer, and an antioxidant are added as necessary. Add one or more additives such as additives, light stabilizers, UV absorbers, curing agents, crosslinking agents, lubricants, fillers, colorants, etc., and knead thoroughly with solvents, diluents, etc. To prepare a resin composition. Next, the resin composition is used, and this is coated or printed on the surface of the substrate 3 by using a normal coating method, a printing method, or the like to form an antistatic coating layer.

  Antistatic agents include, for example, anionic surfactants, cationic surfactants, nonionic surfactants, surfactants such as amphoteric surfactants, inorganic antistatic agents such as metal powder and carbon, silicone One or more selected from antistatic agents, higher fatty acids and esters thereof, acid amides, salts, paraffinic hydrocarbons, waxes and the like can be used.

  Examples of the vehicle resin include polyethylene resins, polypropylene resins, ethylene-propylene copolymers, polyvinyl chloride resins, polyvinyl acetate resins, polyacrylonitrile resins, polystyrene resins, acrylonitrile-styrene copolymers. (AS resin), acrylonitrile-butadiene styrene copolymer (ABS resin), acrylic or methacrylic resin, polycarbonate resin, alkyd resin, phenolic resin, maleic resin, natural resin, hydrocarbon resin, polyvinyl butyral One or two selected from resins, polyamide resins, polyester resins, polyurethane resins, epoxy resins, urea resins, melamine resins, aminoalkyd resins, nitrocellulose, ethyl cellulose, chlorinated rubber, cyclized rubber, etc. It is possible to use more than.

  In addition, 1 type or 2 types or more of the above-mentioned antistatic agents are added to the polyester resin pellets which are the raw materials of the base material 3, and after sufficiently kneading, the base material is formed. 3 can be provided with antistatic properties.

  A large number of scars 15 a are formed on the surface of the base material 3. By forming the scar 15a at a predetermined location of the storage portion 13 (see FIG. 1) to form the easy-open region 15, the breaking strength of the base material 3 when the package 1 is opened (see FIG. 2) is reduced. .

  As a method of forming the scratch 15a, for example, a method of pressing a grindstone roller or a grindstone plate on which an abrasive grain surface is formed by embedding abrasive grains having an appropriate particle size distribution, a sandblasting process, a method of pressing a wire brush, etc., A laser machining method, a corona discharge machining method, a plasma discharge machining method, or the like can be used. In particular, a method of inserting a biaxially stretched polyester resin film between a grindstone roller and a rubber receiving roller is preferable. The grinding wheel roller can be manufactured by, for example, applying diamond powder having a particle size distribution of particle size # 60 to 120 to the outer peripheral surface of a metal roller using an epoxy resin or the like as a binder and then curing the epoxy resin.

  In FIG. 3, the scratches 15 a that do not penetrate the base material 3 are provided, but a large number of through holes that penetrate the base material 3 may be provided instead of the scratches 15 a. That is, by the rough surface processing as described above, a rough surface consisting only of the scratch 15a not penetrating as shown in FIG. 3, or a rough surface consisting only of the through hole 15b as shown in FIG. A rough surface in which the scratches 15a that do not penetrate and the through holes 15b are mixed as shown in FIG.

  Whether it is a rough surface consisting only of the flaws 15a, a rough surface consisting only of the through-holes 15b, or a rough surface where both are mixed can be adjusted by the unevenness depth of the abrasive surface of the grindstone roller. . When the rough surface including the through-hole 15b is used, the breaking strength of the first laminate 7 can be further reduced, but the water vapor barrier property and gas barrier property of the first laminate 7 are reduced. It is preferable to provide a barrier layer 21 (see FIG. 6B) described later on the back side.

  The easy-open region 15 only needs to be formed in a region that overlaps at least the solid preparation 11 when the storage unit 13 is seen in a plan view, and is formed in a pattern that cuts the storage unit 13 vertically as shown in FIG. As shown to (a), you may form in the cross shape which overlaps on the solid formulation 11, or you may form only in the approximate center part of the accommodating part 13 which overlaps with the solid formulation 11 as shown in FIG.5 (b). good. That is, by changing the formation pattern of the easy-open region 15 according to the shape and size of the solid preparation 11 to be included, it is possible to give the package 1 an optimal opening property. The formation pattern of the easy-open region 15 can be set to a desired size and shape depending on the shape of the abrasive grain surface of the grindstone roller.

  Note that the breaking direction of the first laminate 7 is determined by the shape of the flaws 15a or the through holes 15b constituting the easy-open region 15. For example, when the package 1 is broken in the left-right direction in FIG. 1A and the solid preparation 11 is taken out, the scar 15a may be formed in a straight line extending parallel to the fracture surface, that is, extending in the up-down direction in FIG. . Therefore, by making the scar 15a or the through-hole 15b linear, and setting the direction arbitrarily according to the shape of the solid preparation 11, the breaking direction of the easy-open region 15 is set to a direction in which the solid preparation 11 can be easily taken out. Can do. In addition, the formation interval of the scar 15a or the through hole 15b is preferably about 0.6 mm to 1.0 mm.

  The thermoplastic resin layer 5 may be any material that can be melted by heat and can fuse the first laminate 7 and the second laminate 9 to each other. For example, low-density polyethylene, medium-density polyethylene, and high-density polyethylene. , Linear (linear) low density polyethylene, ethylene / α-olefin copolymer polymerized using metallocene catalyst (single site catalyst), polypropylene, ethylene / vinyl acetate copolymer, ionomer resin, ethylene-acrylic Ethylene acid copolymer, ethylene-acrylic acid copolymer, ethylene-methacrylic acid copolymer, ethylene-propylene copolymer, methylpentene polymer, polyolefin resin such as polyethylene or polypropylene, acrylic acid, methacrylic acid, maleic anhydride Acid-modified polyolefin modified with unsaturated carboxylic acid such as acid and fumaric acid It one not selected from the series resin may be used or two or more kinds.

  In the present invention, the thermoplastic resin layer 5 constituting the first laminate 7 is formed by laminating on the back surface of the substrate 3 by a melt extrusion method using the above thermoplastic resin as a melt extrusion resin. And When the thermoplastic resin layer 5 is formed of a single layer or a multilayer film made of a thermoplastic resin, although generally depending on the breaking strength and thickness of the multilayer film, the breaking strength of the thermoplastic resin layer 5 is generally increased, and the easy-open region It becomes difficult to take out the solid preparation 11 from 15. By forming the thermoplastic resin layer 5 by melt extrusion, the breaking strength becomes low and the easy-open region 15 can be easily opened. The thickness of the thermoplastic resin layer 5 is preferably about 10 μm to 50 μm, and particularly preferably about 15 μm to 25 μm in consideration of heat sealing properties, easy opening properties, and the like.

  In addition, for example, workability, heat resistance, weather resistance, mechanical properties, dimensional stability, antioxidant properties, slipperiness, mold release properties, flame retardancy, antifungal properties, electrical properties, strength, etc. are improved and modified. For this purpose, one or more of the above-mentioned antistatic agents are added to the melt-extruded resin constituting the thermoplastic resin layer 5, and various plastic compounding agents, additives, etc. Can be added. Examples of general additives include lubricants, crosslinking agents, antioxidants, ultraviolet absorbers, light stabilizers, fillers, reinforcing agents, antistatic agents, pigments, and the like. Resin etc. can also be used.

  The anchor coat layer 17 chemically treats the back surface of the base material 3 in order to increase the adhesive strength between the base material 3 and the thermoplastic resin layer 5. The thickness of the anchor coat layer 17 is usually preferably about 0.1 to 2.0 μm. As the anchor coat agent constituting the anchor coat layer 17, for example, an isocyanate type (urethane type), polyethyleneimine type, polybutadiene type, organic titanium type anchor coat agent or the like can be used.

  Specifically, aromatic polyisocyanates such as tolylene diisocyanate, diphenylmethane diisocyanate, polymethylene polyphenylene polyisocyanate, or aliphatic polyisocyanates such as hexamethylene diisocyanate, xylylene diisocyanate, etc. The main component is a polyether polyurethane resin, a polyester polyurethane resin, or a polyacrylate polyurethane resin obtained by reacting a polyfunctional isocyanate with a hydroxyl group-containing compound such as a polyether polyol, polyester polyol, or polyacrylate polyol. And an anchor coating agent.

  FIG. 6 is an enlarged cross-sectional view showing another configuration example of the first stacked body 7. As shown in FIG. 6A, the first laminate 7 forms a print layer 19 composed of a desired print pattern such as letters, figures, symbols, and patterns between the base material 3 and the anchor coat layer 17. You can also

  As a method for forming the printing layer 19, the main component is one or more of ordinary ink vehicles, and as necessary, a plasticizer, a stabilizer, an antioxidant, a light stabilizer, an ultraviolet absorber, a curing agent, Add one or more additives such as crosslinking agents, lubricants, antistatic agents, fillers, etc., add colorants such as dyes and pigments, and knead well with solvents, diluents, etc. Then, the ink composition is adjusted. Then, using this ink composition, a printing pattern 19 is formed by printing a desired printing pattern on the back surface of the substrate 3 by a printing method such as gravure printing, offset printing, letterpress printing, screen printing, transfer printing, flexographic printing, etc. To do.

  Ink vehicles include linseed oil, drill oil, soybean oil, hydrocarbon oil, rosin, rosin ester, rosin modified resin, shellac, alkyd resin, phenolic resin, maleic resin, natural resin, hydrocarbon resin, polychlorinated Vinyl resin, polyvinyl acetate resin, polystyrene resin, polyvinyl butyral resin, acrylic or methacrylic resin, polyamide resin, polyester resin, polyurethane resin, epoxy resin, urea resin, melamine resin, aminoalkyd resin One, two or more selected from known ink vehicles such as nitrocellulose, ethylcellulose, chlorinated rubber, and cyclized rubber can be used.

  Moreover, when the solid preparation 11 to be included is easily deteriorated by moisture or oxygen, the package 1 is required to have high water vapor barrier properties and gas barrier properties. In such a case, a barrier layer 21 can be formed between the base material 3 and the thermoplastic layer 5 as shown in FIG.

  The barrier layer 21 can be basically used as long as it is a vapor-deposited film obtained by vapor-depositing a metal foil or a metal or metal oxide. Examples of the material thereof include silicon (Si), aluminum (Al), and magnesium ( Metals such as Mg), calcium (Ca), potassium (K), tin (Sn), sodium (Na), boron (B), titanium (Ti), lead (Pb), zirconium (Zr), yttrium (Y) Alternatively, an oxide thereof can be used. Preferable examples include silicon (Si) and aluminum (Al) oxides.

The notation of the above metal oxide is, for example, SiOx, AlOx. MOx, such as MgOx (In the formula, M represents a metal element, and the value of X varies depending on the metal element.). As the range of the value of X, 0 to 2 for silicon (Si), 0 to 1.5 for aluminum (Al), 0 to 1 for magnesium (Mg), 0 to 1 for calcium (Ca). 1, 0 to 0.5 for potassium (K), 0 to 2 for tin (Sn), 0 to 0.5 for sodium (Na), 0 to 1, 5 for boron (B), titanium ( Ti) can be 0 to 2, lead (Pb) is 0 to 1, zirconium (Zr) is 0 to 2, and yttrium (Y) is 0 to 1.5.

  In the above, when X = 0, it is a complete metal and cannot be used when the packaging body 1 requires transparency, but can be used when transparency is not required. Moreover, the upper limit of the range of X is a value in a state where the metal is completely oxidized. In the present invention, examples other than silicon (Si) and aluminum (Al) are generally poor. Silicon (Si) is 1.0 to 2.0, and aluminum (Al) is 0.5 to 1. Those in the range of .5 can be used.

  The thickness of the barrier layer 21 as described above is 5 to 30 μm when the barrier layer 21 is a metal foil, and differs depending on the type of metal or metal oxide used when the barrier layer 21 is a deposited film. It is desirable to select and form arbitrarily within the range of about 50 to 2000 mm, preferably about 100 to 1000 mm. In addition, a metal or metal oxide used as the barrier layer 21 may be used as a mixture of two or more, and a metal or metal oxide vapor deposition film mixed with different materials may be formed.

  As a method for forming a vapor deposition film as the barrier layer 21, for example, a metal or metal oxide is used as a raw material, and this is heated and vaporized, and vapor deposition is performed on one surface of the substrate 3, and a metal is used as the raw material. Oxidation reaction vapor deposition method in which oxygen is introduced and oxidized to deposit on one surface of the substrate 3, plasma-assisted oxidation reaction vapor deposition method in which the oxidation reaction is supported by plasma, sputtering method, ion plating method, A physical vapor deposition method (Physical Vapor Deposition method, PVD method) such as an ion cluster beam method can be used. Examples of the heating method for the vapor deposition material include a resistance heating method, a high-frequency induction heating method, and an electron beam heating method (EB).

  In addition, the adhesion between the barrier layer 21 and the base material 3 and the thermoplastic resin layer 5 laminated on both surfaces thereof is improved. Finally, the two layers are firmly adhered to each other, and delamination is performed. 5B, after depositing a barrier layer 21 on the back surface of the base material 3 via the anchor coat layer 17, in FIG. 5B, the thermoplastic resin layer 5 is further passed through the anchor coat layer 17. Is forming.

  The anchor coat layer 17 rich in flexibility and flexibility is laminated on the barrier layer 21 made of a metal foil or a thin film of metal or metal oxide as a film having flexibility, flexibility, etc. It also serves to improve the processability of the barrier layer 21 during post-processing such as processing, printing, or bag making, and to prevent the occurrence of cracks and the like in the barrier layer 21 during post-processing.

  Moreover, it can replace with the anchor coat layer 17 and can also improve adhesiveness by forming a plasma processing surface in the back surface of the base material 3. FIG. The plasma treatment surface can be formed by using a plasma surface treatment method or the like in which surface modification is performed using a plasma gas generated by ionizing a gas by arc discharge. As a gas used for the plasma treatment, an inert gas such as nitrogen gas, argon gas, or helium gas can be used, and a mixed gas obtained by adding oxygen gas to these inert gases can also be used. In addition, as a method for generating plasma, for example, devices such as direct current glow discharge, high frequency discharge, and microwave discharge can be used.

  FIG. 7 is an enlarged view of a part of the second stacked body 9. The second laminate 9 has a three-layer structure in which the thermoplastic resin layer 5 is laminated on the back surface of the base material 3 via the dry laminate layer 23. Since the base material 3 and the thermoplastic resin layer 5 are the same as those of the first laminate 7, description thereof is omitted. Since the second laminate 9 does not need to have a low breaking strength, the thermoplastic resin layer 5 may be formed using a single layer or a multilayer film made of a thermoplastic resin, or formed by a melt extrusion method. May be. When the thermoplastic resin layer 5 is formed by the melt extrusion method, the anchor coat layer 17 described above may be laminated instead of the dry laminate layer 23.

  Examples of the laminating adhesive constituting the dry laminating layer 23 include, for example, polyvinyl acetate adhesives, homopolymers such as ethyl acrylate, butyl, 2-ethylhexyl ester, and the like, methyl methacrylate, acrylonitrile, styrene. Polyacrylic acid ester adhesives, cyanoacrylate adhesives, and copolymers of ethylene and monomers such as vinyl acetate, ethyl acrylate, acrylic acid, and methacrylic acid. Polymer-based adhesives, cellulose-based adhesives, polyester-based adhesives, polyamide-based adhesives, polyimide-based adhesives, amino resin-based adhesives such as urea resins or melamine resins, phenolic resin-based adhesives, epoxy-based adhesives, Polyurethane adhesive, reactive (meth) acrylic adhesive Chloroprene rubber, nitrile rubber, 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.

The composition system of the above-mentioned adhesive may be any composition form such as an aqueous type, a solution type, an emulsion type, and a dispersion type, and the property is any of film / sheet form, powder form, solid form, etc. Further, the bonding mechanism may be any of a chemical reaction type, a solvent volatilization type, a heat melting type, a hot pressure type, and the like. As a method for forming the dry laminate layer 23, the above-mentioned laminating adhesive is applied to one surface of both of the layers by, for example, a coating method such as a roll coating method, a gravure roll coating method, a kiss coating method, or a printing method. Then, it can be formed by drying a solvent or the like, and the coating or printing amount is preferably about 0.1 to 10 g / m ^{2 in} a dry state.

  FIG. 8 is an enlarged cross-sectional view showing another configuration example of the second stacked body 9. As shown in FIG. 8A, the second laminate 7 forms a print layer 19 composed of a desired print pattern such as letters, figures, symbols, and patterns between the base material 3 and the dry laminate layer 23. You can also Since the composition and formation method of the printing layer 19 are the same as those of the first stacked body 7, the description thereof is omitted. Note that at least one of the front surface and the back surface of the storage portion 13 is preferably transparent in order to easily check for defective filling when the solid preparation 11 is included in the package 1. Therefore, it is good to form the printing layer 19 in any one of the 1st laminated body 7 or the 2nd laminated body 9, or to provide the transparent part (window part) from which the solid preparation 11 can be visually recognized.

  In addition, since the packaging body 1 is assumed to be subjected to physically and chemically severe conditions, the second laminate 9 constituting the packaging body 1 also has high sealing performance, pinhole resistance, heat resistance, Light resistance, quality maintenance, workability, hygiene, etc. are required. Therefore, in order to satisfy the various conditions as described above, an intermediate layer 25 may be laminated via a dry laminate layer 23 between the base material 3 and the thermoplastic layer 5 as shown in FIG. it can.

  Examples of the intermediate layer 25 include low density polyethylene, medium density polyethylene, high density polyethylene, linear low density polyethylene, polypropylene, ethylene-propylene copolymer, ethylene-vinyl acetate copolymer, ionomer resin, and ethylene-ethyl acrylate. 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 , 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. In addition, a light-shielding film or sheet obtained by adding a desired additive such as a colorant or an ultraviolet absorber and kneading to form a film can also be used.

  The film or sheet may be any of unstretched and uniaxially or biaxially stretched. Moreover, although the thickness of the intermediate | middle layer 25 is arbitrary, it can select and use from the range of about several micrometers-300 micrometers. Further, as a method of laminating the intermediate layer 25, any of extrusion film formation, inflation film formation, coating film, dry lamination, and the like may be used.

  FIG. 9A is a schematic plan view showing a state in which a solid preparation is hermetically packaged in a solid packaging body according to the second embodiment of the present invention, and FIG. 9B is a cross-sectional view thereof (FIG. 9A). BB 'cross section). Portions common to FIG. 1 of the first embodiment are denoted by the same reference numerals and description thereof is omitted. In the present embodiment, the base material 3 of the first laminate 7 is provided with an easy-open region 15 composed of a single scar (half-cut line) 15a formed so as to cut the center of the storage portion 13 vertically. Yes.

  Also in this embodiment, when the solid preparation 11 is pressed from the second laminate 9 side as shown in FIG. 2, the pressing force F acts on the inside of the easy-open region 15 through the solid preparation 11. Since the breaking strength of the easy-open region 15 is reduced, when the pressing force F is increased, the first laminate 7 is broken along the scar 15a, and the solid preparation 11 can be easily taken out. Examples of the method for forming the scar 15a include a method of press-bonding a cutter roller or a cutter plate in which a cutter blade is embedded so as to have an appropriate protrusion amount corresponding to the depth of the scar 15a, a laser processing method, and the like.

  The easy-open region 15 (scratches 15a) is not limited to the position shown in FIG. 9 as long as it can be broken by pressing the solid preparation 11, but may be formed so as to cross the center of the storage unit 13, for example. It may be good or may be formed into a cross in the vertical and horizontal directions. Or you may form only in the part which overlaps with the solid formulation 11 of the accommodating part 13. FIG. Further, a through hole 15b penetrating the base material 3 instead of the scratch 15a may be formed in a slit shape so as to cut the housing portion 13 vertically. In addition, the material and thickness of each layer constituting the first laminated body 7 and the second laminated body 9, the lamination method, and the like are exactly the same as those in the first embodiment.

  Next, the manufacturing method of the solid packaging body of this invention is demonstrated. First, the base material 3 on which one surface of the anchor coat layer 17 is formed is mounted on a winding roll of a winding type vacuum vapor deposition apparatus. Next, a barrier layer 21 of metal or metal oxide is formed on the surface of the anchor coat layer 17 under predetermined vapor deposition conditions.

  Next, the surface on which the barrier layer 21 is not formed is opposed to the abrasive surface (cutter surface) between the grindstone roller (or cutter roller) and the receiving roller of the base material 3 on which the barrier layer 21 is formed. To form a scar 15a at a predetermined location of the biaxially stretched polyester resin film layer 3.

  Next, after laminating the anchor coat layer 17 on the surface of the barrier layer 21 of the biaxially stretched polyester resin film layer 3 in which the scratches 15a are formed, the thermoplastic resin layer 5 is laminated by the melt extrusion method to form the first laminate. 7 is manufactured. On the other hand, a dry laminate layer 23 is laminated on a separately prepared base material 3, and an intermediate layer 25 and a dry laminate layer 23 are laminated as necessary, and then a thermoplastic resin layer 5 is laminated to produce a second laminate 9. To do.

  The surfaces of the thermoplastic resin layer 5 of the first laminate 7 and the second laminate 9 manufactured in this way are overlapped with each other, and after inserting the solid preparation 11, the peripheral end portion thereof is heat sealed and sealed. By forming the part 10 and the storage part 13, the package 1 is manufactured. At this time, the easy-open region 15 is provided so that the place where the scratch 15 a of the first laminated body 7 is formed is arranged on the flat portion of the storage portion 13. As a heat sealing method, for example, a known method such as a bar seal, a rotary roll seal, a belt seal, an impulse seal, a high frequency seal, or an ultrasonic seal can be used.

  The package 1 of the present invention can be produced continuously or batchwise. For example, when manufacturing continuously, the long 1st laminated body 7 and the 2nd laminated body 9 which were wound by roll shape are drawn | fed out one by one, the solid preparation 11 is inserted between both laminated bodies 7 and 9, and the circumference | surroundings are simultaneously By continuously performing the heat-sealing process, the long packaging body 1 in which the plurality of storage portions 13 in which the easy-open regions 15 are formed in the planar portion is formed in a matrix is manufactured. Thereafter, the package 1 is cut in the longitudinal direction by a slitter, and further cut in the width direction by a predetermined number.

  Moreover, when manufacturing in batch type, the 1st laminated body 7 and the 2nd laminated body 9 are piled up, the thermoplastic resin layer 5 is made to oppose, and also the peripheral edge part is a side seal type, a two-way seal type, for example The package 1 can be manufactured in various forms having the easy-open region 15 in the flat portion of the storage portion 13 by heat sealing using a heat sealing configuration such as a three-side sealing type or a four-side sealing type.

  Moreover, when forming the through-hole 15b instead of the scar 15a or with the scar 15a, in order to ensure the water vapor barrier property and gas-barrier property by the barrier layer 21, a through-hole is previously provided in the biaxially stretched polyester resin film layer 3. After forming 15b, the barrier layer 21 is laminated.

  Furthermore, it is possible to manufacture the package 1 using only the first laminate 7 without using the second laminate 9. That is, the first laminated body 7 was bent to form the seal portion 10 and the storage portion 13 in a heat seal form such as a two-side seal type, a three-side seal type, an envelope-attached seal type, or a joint-attached seal type (pillow seal type). At this time, the easy-open region 15 in which many scratches 15 a and / or through-holes 15 b are formed may be arranged on any flat portion of the storage portion 13.

  The package 1 of the present invention thus obtained can be used as a packaging material for solid foods such as tablets or capsules, solid foods such as confectionery, daily necessities, toys, etc. Since it has excellent characteristics and is excellent in moisture resistance and gas barrier properties, it is possible to provide a package with significantly improved usability, storage stability, cost and the like.

  In addition, the present invention is not limited to the above embodiments, and various modifications can be made without departing from the spirit of the present invention. For example, the barrier layer 21 may be provided on the second stacked body 9, or the intermediate layer 25 may be provided on the first stacked body 7 as long as the unsealing property of the easy-open region 15 is not impaired. Further, the above production method is only a preferred example. For example, as a production method of the second laminate 9, a lamination method used when producing an ordinary packaging material, for example, a wet lamination method, a solventless lamination method, a common lamination method, and the like. An extrusion lamination method, an inflation method, and other methods can also be used.

  Further, when the above layers are laminated, if necessary, pretreatment such as corona discharge treatment, ozone treatment, flame treatment, blast treatment, etc. can be optionally applied to the surface of the substrate to be laminated. Hereinafter, the configuration of the present invention will be described more specifically using examples.

(1) A biaxially stretched polyethylene terephthalate film having a thickness of 12 μm was used as a substrate film, and a polyethyleneimine anchor coating agent was applied on one side to form an anchor coat layer having a thickness of 0.4 μm. This is mounted on a take-up roll of a wind-up type vacuum vapor deposition apparatus, and then conveyed at a line speed of 600 mm / min. While supplying the gas, an aluminum oxide vapor deposition film having a thickness of 20 nm was formed as a barrier layer by a vacuum vapor deposition method using an electron beam (EB) heating method.
(Deposition conditions)
Degree of vacuum in the deposition chamber; 2 × 10 ^-4 mbar
Degree of vacuum in winding chamber; 2 × 10 ^-2 mbar
Electron beam power: 25 kW
Film transport speed: 600 m / min

(2) On the other hand, diamond powder having a particle size distribution of particle sizes # 60 to 120 is applied to a predetermined portion of the outer peripheral surface of a metal roller (diameter 5 inches, width 8 mm) using an epoxy resin as a binder, and the epoxy resin is cured. A grinding wheel roller was produced. Next, the biaxially stretched polyethylene terephthalate film in which the vapor deposition film of aluminum oxide is formed in (1) above is used between the roller and the receiving roller, and the surface of the biaxially stretched polyethylene terephthalate film is the grindstone. The roller was pressed so as to face the roller, and was subjected to a surface roughening process, thereby forming a large number of scars that did not penetrate into predetermined positions of the biaxially stretched polyethylene terephthalate film.

(3) Next, a polyethyleneimine anchor coating agent is applied to the aluminum oxide vapor-deposited film of the biaxially stretched polyethylene terephthalate film in which the scratches are formed in (2) above to form an anchor coat layer having a thickness of 0.4 μm. Then, a molten polyethylene resin layer having a thickness of 20 μm was laminated as a thermoplastic resin layer on the surface of the anchor coat layer by a melt extrusion method to produce a first laminate.

(4) On the other hand, on a biaxially stretched polyethylene terephthalate film having a thickness of 12 μm, a two-component curing type polyurethane-based laminate adhesive is applied to a thickness of 4.0 g / m ² (in a dry state) using a gravure roll coating method. A dry laminate layer was formed by coating, and then a low-density polyethylene film having a thickness of 20 μm as a thermoplastic resin layer was dry laminated on the surface of the dry laminate layer to produce a second laminate.

(5) Next, the first laminated body and the second laminated body produced in the above (3) and (4) are used, both the thermoplastic resin layers are made to face each other, and the first laminated body is used. A three-side seal type that forms a seal portion and a storage portion by heat-sealing the outer peripheral end of the storage portion so that a scar on the body becomes a part of the storage portion to form an easy-open region, and has an opening at one end. The sachet was manufactured. Next, the pharmaceutical product in the form of a tablet was filled and packaged from the opening into the three-side seal type sachet produced above, and finally the opening was heat sealed to produce a package.

  The package 1 of the present invention produced above has excellent moisture barrier properties and gas barrier properties. Furthermore, the tablet can be easily broken by pressing the tablet from the outside toward the easy-open region to break the first laminate. I was able to take it out.

  The present invention is a solid packaging formed of a laminate including at least a base material and a thermoplastic resin layer that is an innermost layer, and having a storage portion that encloses a solid material, and a seal portion that closes the periphery of the storage portion. And at least a part of the flat portion of the storage portion is provided with an easy-open region in which at least one of a scar or a through-hole that does not penetrate the base material is formed and covered with a thermoplastic resin layer. The easy-open region can be broken by pressing the solid substance contained in the part from the outside toward the easy-open region.

  As a result, the laminate can be broken simply by pressing the solid material from the outside toward the easy-open region, so that the packaging body can be opened and the solid material can be taken out easily and safely. Can provide an excellent solid packaging body.

  Further, since the thermoplastic resin layer overlapping the easy-open region is formed by the melt extrusion method, the thermoplastic resin layer has a good heat sealability and is easily broken. Furthermore, since the melt-extruded polyethylene or the melt-extruded ethylene-methacrylic acid copolymer is used as the melt-extruded resin, the solid packaging body is further excellent in manufacturability and openability.

  Moreover, if the 1st laminated body in which a scar and a through-hole are formed, and the 2nd laminated body in which a scratch and a through-hole are not formed are prepared beforehand, the elongate 1st laminated body and the 2nd laminated body of By performing heat sealing simultaneously with the insertion of the solid material between them, the package can be continuously manufactured, and the manufacturing cost is reduced. Furthermore, if a barrier layer made of a metal or metal oxide thin film is provided in the first laminate and an intermediate layer is provided in the second laminate, water vapor and gas barrier properties, pinhole resistance, heat resistance, light resistance, It becomes a solid packaging body particularly suitable for pharmaceutical preparations, to which quality maintenance, workability, hygiene, and the like are imparted.

These are the top view and sectional drawing of the package which concern on 1st Embodiment of this invention. These are sectional drawings which show the opening method of the package of 1st Embodiment. These are the fragmentary sectional views of the 1st laminated body which comprises the package of 1st Embodiment. These are the fragmentary sectional views which show the example (Drawing 4 (a)) which replaced with a scar, and formed the penetration hole and the example (Drawing 4 (b)). These are top views which show the other formation pattern of an easy-open area | region. These are the fragmentary sectional views which show the other structural example of a 1st laminated body. These are the fragmentary sectional views of the 2nd laminated body which comprises the package of 1st Embodiment. These are the fragmentary sectional views which show the other structural example of a 2nd laminated body. These are the top view and sectional drawing of the package which concern on 2nd Embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Package 3 Base material 5 Thermoplastic resin layer 7 1st laminated body 9 2nd laminated body 10 Seal part 11 Solid preparation 13 Storage part 15 Easy-open region 15a Scar 15b Through-hole 17 Anchor coat layer 19 Print layer 21 Barrier layer 23 Dry laminate layer 25 Intermediate layer

Claims (6)

A solid packaging body that is formed of a laminate including at least a base material and a thermoplastic resin layer that is an innermost layer, and has a storage portion that encloses a solid material, and a seal portion that closes the periphery of the storage portion. ,
At least a part of the flat portion of the storage portion is provided with an easy-open region in which at least one of a scar or a through-hole that does not penetrate the base material is formed and covered with the thermoplastic resin layer, and the storage portion A packaging body characterized in that the easy-open region can be broken by pressing the solid matter contained in the container in the direction of the easy-open region from the outside.   The package according to claim 1, wherein the thermoplastic resin layer overlapping the easy-open region is formed by a melt extrusion method.   The packaging body according to claim 2, wherein the thermoplastic resin layer overlapping the easy-open region is formed of melt-extruded polyethylene or a melt-extruded ethylene-methacrylic acid copolymer.   The said laminated body consists of the 1st laminated body in which at least one of the said scar or a through-hole is formed, and the 2nd laminated body in which the said scar and a through-hole are not formed, The Claim 1 thru | or 3 characterized by the above-mentioned. The package in any one of.   The package according to claim 4, wherein a barrier layer made of a metal or metal oxide thin film is provided between the base material of the first laminate and the thermoplastic resin layer.   The package according to claim 4 or 5, wherein an intermediate layer is provided between the base material of the second laminate and the thermoplastic resin layer.

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