WO2019093227A1 - ブリスターパック用蓋材 - Google Patents

ブリスターパック用蓋材 Download PDF

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Publication number
WO2019093227A1
WO2019093227A1 PCT/JP2018/040741 JP2018040741W WO2019093227A1 WO 2019093227 A1 WO2019093227 A1 WO 2019093227A1 JP 2018040741 W JP2018040741 W JP 2018040741W WO 2019093227 A1 WO2019093227 A1 WO 2019093227A1
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WO
WIPO (PCT)
Prior art keywords
layer
easily peelable
blister
resin
blister container
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2018/040741
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
篤史 安田
謙太 鈴木
慎一 近藤
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kyodo Printing Co Ltd
Original Assignee
Kyodo Printing Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kyodo Printing Co Ltd filed Critical Kyodo Printing Co Ltd
Priority to US16/761,141 priority Critical patent/US20200270037A1/en
Priority to EP18876602.6A priority patent/EP3708515A4/en
Priority to CN201880069914.XA priority patent/CN111278745B/zh
Publication of WO2019093227A1 publication Critical patent/WO2019093227A1/ja
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D65/00—Wrappers or flexible covers; Packaging materials of special type or form
    • B65D65/38—Packaging materials of special type or form
    • B65D65/40—Applications of laminates for particular packaging purposes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D75/00—Packages comprising articles or materials partially or wholly enclosed in strips, sheets, blanks, tubes or webs of flexible sheet material, e.g. in folded wrappers
    • B65D75/28—Articles or materials wholly enclosed in composite wrappers, i.e. wrappers formed by associating or interconnecting two or more sheets or blanks
    • B65D75/30—Articles or materials enclosed between two opposed sheets or blanks having their margins united, e.g. by pressure-sensitive adhesive, crimping, heat-sealing, or welding
    • B65D75/32—Articles or materials enclosed between two opposed sheets or blanks having their margins united, e.g. by pressure-sensitive adhesive, crimping, heat-sealing, or welding one or both sheets or blanks being recessed to accommodate contents
    • B65D75/325—Articles or materials enclosed between two opposed sheets or blanks having their margins united, e.g. by pressure-sensitive adhesive, crimping, heat-sealing, or welding one or both sheets or blanks being recessed to accommodate contents one sheet being recessed, and the other being a flat not- rigid sheet, e.g. puncturable or peelable foil
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B15/08—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B32B15/09—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin comprising polyesters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/20—Layered products comprising a layer of metal comprising aluminium or copper
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
    • B32B27/308—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising acrylic (co)polymers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/06—Interconnection of layers permitting easy separation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D75/00—Packages comprising articles or materials partially or wholly enclosed in strips, sheets, blanks, tubes or webs of flexible sheet material, e.g. in folded wrappers
    • B65D75/28—Articles or materials wholly enclosed in composite wrappers, i.e. wrappers formed by associating or interconnecting two or more sheets or blanks
    • B65D75/30—Articles or materials enclosed between two opposed sheets or blanks having their margins united, e.g. by pressure-sensitive adhesive, crimping, heat-sealing, or welding
    • B65D75/32—Articles or materials enclosed between two opposed sheets or blanks having their margins united, e.g. by pressure-sensitive adhesive, crimping, heat-sealing, or welding one or both sheets or blanks being recessed to accommodate contents
    • B65D75/36—Articles or materials enclosed between two opposed sheets or blanks having their margins united, e.g. by pressure-sensitive adhesive, crimping, heat-sealing, or welding one or both sheets or blanks being recessed to accommodate contents one sheet or blank being recessed and the other formed of relatively stiff flat sheet material, e.g. blister packages, the recess or recesses being preformed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D75/00—Packages comprising articles or materials partially or wholly enclosed in strips, sheets, blanks, tubes or webs of flexible sheet material, e.g. in folded wrappers
    • B65D75/28—Articles or materials wholly enclosed in composite wrappers, i.e. wrappers formed by associating or interconnecting two or more sheets or blanks
    • B65D75/30—Articles or materials enclosed between two opposed sheets or blanks having their margins united, e.g. by pressure-sensitive adhesive, crimping, heat-sealing, or welding
    • B65D75/32—Articles or materials enclosed between two opposed sheets or blanks having their margins united, e.g. by pressure-sensitive adhesive, crimping, heat-sealing, or welding one or both sheets or blanks being recessed to accommodate contents
    • B65D75/36—Articles or materials enclosed between two opposed sheets or blanks having their margins united, e.g. by pressure-sensitive adhesive, crimping, heat-sealing, or welding one or both sheets or blanks being recessed to accommodate contents one sheet or blank being recessed and the other formed of relatively stiff flat sheet material, e.g. blister packages, the recess or recesses being preformed
    • B65D75/366—Articles or materials enclosed between two opposed sheets or blanks having their margins united, e.g. by pressure-sensitive adhesive, crimping, heat-sealing, or welding one or both sheets or blanks being recessed to accommodate contents one sheet or blank being recessed and the other formed of relatively stiff flat sheet material, e.g. blister packages, the recess or recesses being preformed and forming one compartment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D81/24—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants
    • B65D81/26—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants with provision for draining away, or absorbing, or removing by ventilation, fluids, e.g. exuded by contents; Applications of corrosion inhibitors or desiccators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D81/24—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants
    • B65D81/26—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants with provision for draining away, or absorbing, or removing by ventilation, fluids, e.g. exuded by contents; Applications of corrosion inhibitors or desiccators
    • B65D81/264—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants with provision for draining away, or absorbing, or removing by ventilation, fluids, e.g. exuded by contents; Applications of corrosion inhibitors or desiccators for absorbing liquids
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/726—Permeability to liquids, absorption
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2439/00—Containers; Receptacles
    • B32B2439/80—Medical packaging

Definitions

  • the present invention relates to a lid for a blister pack.
  • Blister packs are conventionally used as packaging containers for capsules containing, for example, solid preparations such as tablets and drugs.
  • a concave portion called a pocket is formed in a sheet for blister container made of a resin sheet or the like to form a blister container, the contents are put in the pocket, and the lid material is heat sealed or the like. It can be formed by bonding.
  • the blister container is a state-containing blister pack in which the preparation and the like are enclosed by heat sealing the lid material to the portion of the hem which is spread around the periphery, with the preparation and the like being accommodated inside the pocket. If the blister container and / or the lid material used for packaging are transparent, the preparation enclosed in the inside can be easily viewed.
  • As a means for taking out the contents from the blister pack mainly pressing and deforming the pocket of the blister container from the outside to the lid side, the lid is broken with the contents, and the contents are taken out (push through). ing.
  • Patent Document 1 discloses a technology for protecting a moisture-sensitive product from moisture by laminating a plastic material layer containing a desiccant that absorbs moisture on a blister pack lid.
  • the thickness of the plastic material layer containing the desiccant is thin. Since it is necessary to control, there are cases where the easy openability of the lid material and the desired absorption performance can not be compatible.
  • the present invention is as follows: ⁇ Aspect 1> A base material layer, an absorbent layer, and an easily peelable layer are provided in this order, A skin layer is provided on the surface on the side of the easily peelable layer of the absorption layer, The absorbent layer contains a resin for absorbent layer and an absorbent, The skin layer contains a resin for a skin layer and does not contain an absorbent, and the easily peelable layer contains a peelable resin. Lid for blister pack. ⁇ Aspect 2> The lid according to aspect 1, wherein the skin layer further has a surface on the substrate layer side of the absorbent layer.
  • the easily peelable layer is bonded to a blister container having at least a polyvinyl chloride layer and having a pocket, whereby the blister container and the easily peelable layer are joined.
  • a blister pack comprising a content, a blister container, and a lid
  • the blister container comprises at least a polyvinyl chloride layer and has a pocket
  • the lid has the base material layer, the absorbent layer, and the peelable layer in this order
  • a skin layer is present on the surface on the side of the easily peelable layer of the absorption layer
  • the absorbent layer contains a resin for absorbent layer and an absorbent
  • the above skin layer contains a skin layer resin
  • the easily peelable layer contains a peelable resin
  • the easily peelable layer is fused to the polyvinyl chloride layer of the blister container, whereby the contents are contained in the pocket.
  • the blister container can be interfacially peeled from the easily peelable layer, or (ii) at the joint portion, at least a part of the easily peelable layer follows the blister container, and In the non-bonding portion, all of the easily peelable layer can follow the absorption layer, Contents blister pack.
  • a lid for a blister pack In combination with a blister container at least comprising a polyvinyl chloride layer and having a pocket,
  • the lid material comprises a base material layer, an absorbent layer, and an easily peelable resin layer in this order,
  • a skin layer is present on the surface on the side of the easily peelable layer of the absorption layer,
  • the absorbent layer contains a resin for absorbent layer and an absorbent,
  • the skin layer contains a skin layer resin, and the easily peelable resin layer contains a peelable resin,
  • the easy-to-peel layer is fused to the polyvinyl chloride layer of the blister container, thereby corresponding to the bonding portion where the blister container and the easy-peelable layer are bonded, and the pocket of the blister container And forming a non-joining portion where the blister container and the easily peelable layer are not joined, and when the lid material is peeled from the blister container,
  • the blister container can be interfacially peeled from the easily peelable layer, or
  • the lid material for blister packs which has a desired absorption function and can be easily opened without breaking an absorption layer can be provided.
  • FIG. 1 is a view showing the layer configuration of one embodiment of the blister pack of the present invention.
  • FIG. 2 is a view showing the peeling mechanism of one embodiment of the blister pack of the present invention.
  • FIG. 3 is a view showing the peeling mechanism of the following embodiment (ii) of the blister pack of the present invention.
  • FIG. 4 is a view showing a variant peeling mechanism of the following (ii) embodiment of the blister pack of the present invention.
  • the blister pack lid 10 of the present invention is a blister pack lid 10 having a base material layer 18, an absorbent layer 12, and an easily peelable layer 14.
  • a skin layer 16 is provided on the surface on the side of the easily peelable layer 14 of the absorbing layer 12.
  • the absorbent layer 12 contains a resin for absorbent layer and an absorbent.
  • the skin layer 16 contains a skin layer resin and contains no absorbent.
  • the easily peelable layer 14 contains an easily peelable resin, in particular, an easily peelable resin that can be fused to polyvinyl chloride.
  • the skin layer 16 may further be provided on the surface of the absorbent layer 12 on the substrate layer 18 side.
  • the "peelable layer” means a polyvinyl chloride layer of a blister container having at least a polyvinyl chloride layer and having a pocket as a peelable layer of a lid material. After bonding to the side, cohesive failure of the peelable layer, and / or interfacial peeling of the blister container from the peelable layer, and / or delamination of the peelable layer and the skin layer It means a layer that can be separated and opened from the blister container from the base layer and the absorbent layer.
  • the easily peelable layer has the blister container 20 peeled off at the interface from the easily peelable layer 14, and as shown in FIG. 2 (b), the easily peelable layer. It is a layer capable of causing the skin layer 16 to delaminate from the layer 14 and / or as shown in FIG. 2C, the cohesive failure of the easily peelable layer 14.
  • the easily peelable layer 14 may be a layer that is broken so as to correspond to the pocket 22 of the blister container 20.
  • the lid material for a blister pack of the present invention can be easily opened without breaking the absorption layer due to the presence of the easily peelable layer, even when the thickness of the absorption layer is designed to be thick in order to secure desired absorption performance. be able to.
  • the peelable layer is fused to a blister container having a pocket, thereby corresponding to the junction where the blister container and the peelable layer are bonded, and to the pocket of the blister container. And the blister container and the peelable layer form a non-bonded portion where the peelable layer does not bond, and when the lid material is peeled from the blister container, (I) As mentioned in connection with FIG. 2 (a), the blister container can be interfacially peeled from the peelable layer, or (ii) at the joint, at least a part of the peelable layer is a blister Following the container, and in the non-joining area, all of the peelable layer can follow the absorbing layer.
  • the embodiment of the above (ii) will be described with reference to FIG.
  • the blister container 20 having the pocket 22 is joined to the lid 10, whereby the junction 14a where the blister container 20 and the peelable layer 14 are joined, and the blister container
  • the non-joining portion 14b corresponding to the 20 pockets 22 and the blister container 20 and the easily peelable layer 14 are not joined is formed and the lid 10 is peeled off, in the region corresponding to the joining portion 14a, The skin 16 delaminates from the easily peelable layer 14.
  • a non-joining portion 14b ' may be further provided between the blister container and the peelable layer, and this may be used as a peeling trigger.
  • the peelable surface reaches the boundary between the non-joined portion 14b 'and the joined portion 14a, as shown in FIG. 3B, the breakable portion 142' is formed in the easily peelable layer 14 And the peelable layer 14 is delaminated from the easily peelable layer 14 in the region corresponding to the bonding portion 14a.
  • the peeled surface reaches the boundary between the joint 14a and the non-joint 14b as shown in FIG. 3 (b), and as shown in FIG. 3 (c).
  • the fractured portion 142 is formed in the easily peelable layer 14, and the easily peelable layer 14 follows the skin layer 16 in the non-joined portion 14 b.
  • the breaking portion 142 reaches the opposite edge of the pocket 22 and the easily peelable layer 14 is cut corresponding to the pocket 22 as shown in FIG. 3 (d).
  • the blister pack lid can be peeled off with strength.
  • the releasable layer may be fusible to polyvinyl chloride having good formability. Specific embodiments are mentioned below.
  • the easily peelable resin is preferably made of an acrylic modified polyolefin. According to this embodiment, good adhesion to polyvinyl chloride having good formability can be realized with a thin film thickness, and as a result, cost reduction and good production rate can be achieved.
  • the easily peelable resin is preferably composed of an ethylene-fatty acid vinyl copolymer.
  • the easily peelable layer can be laminated by the same means as the conventional easy peel film, and good fusion bonding to polyvinyl chloride having good formability is easily realized. be able to.
  • the base material layer may be composed of only the barrier layer or the resin layer, or may be composed of the barrier layer and the resin layer.
  • barrier layer a material that can suppress the permeation of moisture, organic gas, and inorganic gas from the outside into the absorption layer can be used.
  • the barrier layer is not limited to this, for example, metal foil such as aluminum foil or aluminum alloy, vapor deposited film of aluminum, vapor deposited film of silica, vapor deposited film of silica, vapor deposited film of inorganic substance such as alumina or binary vapor deposited film of silica and alumina
  • an organic coating film such as a polyvinylidene chloride coating film or a polyvinylidene fluoride coating film can be used. It is preferable to use aluminum foil as a barrier layer from a viewpoint of making it easy to make barrier property and the handleability as a lid material make compatible especially.
  • the thickness of the barrier layer is preferably 7 ⁇ m or more, 10 ⁇ m or more, or 15 ⁇ m or more from the viewpoint of securing the strength and the barrier property, and is preferably 45 ⁇ m or less, 40 ⁇ m or less, or 35 ⁇ m or less It is preferable from the viewpoint of improving the handleability of
  • thermoplastic resins excellent in impact resistance, abrasion resistance and the like for example, polyolefin, vinyl polymers, polyesters, polyamides and the like can be used alone or in combination of two or more kinds in a multilayer.
  • the resin layer may be a stretched film or a non-stretched film. The resin layer can protect the barrier layer.
  • polyolefin examples include polyethylene resins and polypropylene resins.
  • a polyethylene-based resin is a resin containing more than 50 mol%, 60 mol% or more, 70 mol% or more, or 80 mol% or more of repeating units of ethylene group in the main chain of polymer.
  • Polyethylene LDPE
  • linear low density polyethylene LLDPE
  • medium density polyethylene MDPE
  • high density polyethylene HDPE
  • EAA ethylene-acrylic acid copolymer
  • EAA ethylene-methacrylic acid copolymer
  • EAA ethylene-methacrylic acid copolymer
  • EAA ethylene-methacrylic acid copolymer
  • EAA ethylene-methacrylic acid copolymer
  • EAA ethylene-methacrylic acid copolymer
  • EAA ethylene-ethyl acrylate copolymer
  • EMA ethylene-methyl acrylate copolymer
  • a polypropylene-based resin is a resin containing more than 50 mol%, 60 mol% or more, 70 mol% or more, or 80 mol% or more of repeating units of propylene group in the main chain of polymer, for example, polypropylene (PP) Homopolymers, random polypropylene (random PP), block polypropylene (block PP), chlorinated polypropylene, acid-modified polypropylene, and derivatives thereof, and mixtures thereof can be mentioned.
  • PP polypropylene
  • random PP random polypropylene
  • block PP block polypropylene
  • chlorinated polypropylene acid-modified polypropylene, and derivatives thereof, and mixtures thereof
  • vinyl polymer examples include polyvinyl chloride (PVC), polyvinylidene chloride (PVDC), polychlorotrifluoroethylene, polytetrafluoroethylene, polyacrylonitrile (PAN) and the like.
  • polyester examples include polyethylene terephthalate (PET) and polybutylene terephthalate.
  • polyamides examples include nylons such as nylon (registered trademark) 6, nylon MXD 6 and the like.
  • the thickness of the resin layer is preferably 7 ⁇ m or more, 10 ⁇ m or more, or 15 ⁇ m or more from the viewpoint of satisfactorily protecting the barrier layer, and is preferably 55 ⁇ m or less, 50 ⁇ m or less, or 45 ⁇ m or less It is preferable from the viewpoint of improving the handleability of
  • the absorbent layer is a layer containing a resin for absorbent layer and an absorbent.
  • the absorbent may be dispersed in the resin for absorbent layer.
  • the content of the absorbent in the absorption layer is 1% by mass or more, 3% by mass or more, 5% by mass or more, 7% by mass or more, based on the mass of the entire absorption layer, from the viewpoint of securing a good absorption capacity.
  • the content is preferably 10% by mass or more, and 70% by mass, 65% by mass, 60% by mass, 55% by mass, or 50% by mass or less from the viewpoint of securing a good film forming property. Is preferred.
  • the thickness of the absorption layer is preferably 1 ⁇ m or more, 2 ⁇ m or more, 3 ⁇ m or more, 5 ⁇ m or more, 10 ⁇ m or more, 20 ⁇ m or more, or 30 ⁇ m or more from the viewpoint of securing a good absorption capability, and 100 ⁇ m or less, 90 ⁇ m or less It is preferable from a viewpoint of ensuring the softness of a lid material that it is 80 micrometers or less.
  • thermoplastic resin As resin for absorption layers, a thermoplastic resin can be used, for example individually or in mixture.
  • thermoplastic resin includes, for example, polyethylene resin, polypropylene resin, saturated or unsaturated polyester, ionomer, polyvinyl chloride (PVC), polystyrene, and derivatives thereof, and mixtures thereof.
  • the water vapor transmission rate of the resin according to JIS K 7129 is 5 g / (m) when measured for a film of 25 ⁇ m thickness at 40 ° C. and 90% relative humidity. It is preferable from the viewpoint of securing a good absorption rate that it is 2 ⁇ day) or more, 10 g / (m 2 ⁇ day) or 15 g / (m 2 ⁇ day) or more, and 100 g / (m 2 ⁇ day Or less) or less, 90 g / (m 2 ⁇ day) or less, or 80 g / (m 2 ⁇ day) or less is preferable from the viewpoint of preventing inactivation in the production process.
  • the oxygen permeability of the resin according to JIS K 7126-1 is 5,000 cc / (50%) when measured on a 25 ⁇ m thick film at 25 ° C. relative humidity 0%. It is preferable from the viewpoint of securing a good absorption rate that m 2 ⁇ day ⁇ MPa) or more, 10000 cc / (m 2 ⁇ day ⁇ MPa) or more, or 30000 cc / (m 2 ⁇ day ⁇ MPa) or more A viewpoint which prevents the deactivation in a manufacturing process that it is 230,000 cc / (m 2 ⁇ day ⁇ MPa) or less, 200000 cc / (m 2 ⁇ day ⁇ MPa) or less, or 150000 cc / (m 2 ⁇ day ⁇ MPa) or less It is preferable from
  • absorbent for example, a hygroscopic agent and a gas absorbent can be used.
  • hygroscopic agent physical hygroscopic agents such as hydrophilic zeolite and silica gel, chemical hygroscopic agents such as calcium oxide, magnesium sulfate, calcium chloride, calcium oxide and aluminum oxide can be used.
  • hydrophilic zeolite for example, a zeolite of A-type, X-type or LSX-type can be used. These may be used alone or in combination.
  • gas absorbent physical gas absorbents such as activated carbon and hydrophobic zeolite, iron-based oxygen absorbents, metal halides, metal oxides, metal oxides, sulfates, sulfites, bisulfites, sulfites, etc. Agents can be used.
  • hydrophobic zeolite for example, zeolites of beta type, ZSM-5 type, ferrienite type, mordenite type, L type or Y type can be used.
  • ZSM-11 which is an analogue of ZSM-5 type zeolite, silicalite, silicalite-2, pentasil type metallosilicates can also be used. These may be used alone or in combination.
  • iron powder for example, reduced iron powder, atomized iron powder, activated iron powder, etc.
  • ferrous oxide ferrous salt and the like
  • metal halide for example, calcium chloride, sodium chloride, sodium bromide, sodium iodide, potassium chloride, potassium bromide, potassium iodide, calcium chloride, magnesium chloride, barium chloride and the like can be used.
  • metal oxide for example, calcium oxide, aluminum oxide, cerium oxide having an oxygen defect, titanium oxide having an oxygen defect, or the like can be used.
  • the skin layer is a layer that contains a skin layer resin and does not contain an absorbent.
  • a skin layer is a layer which exists in the field by the side of an easy exfoliation layer of an absorption layer for the purpose of the fall prevention of an absorbent etc. contained in an absorption layer.
  • the skin layer may further be present on the surface on the substrate layer side of the absorbent layer.
  • the skin layer may also be fused to the absorbent layer.
  • the thickness of the skin layer can be 1 ⁇ m or more, 3 ⁇ m or more, 5 ⁇ m or more, or 7 ⁇ m or more, and can be 50 ⁇ m or less, 40 ⁇ m or less, 30 ⁇ m or less, 20 ⁇ m or less, or 15 ⁇ m or less. If skin layers are present on both sides of the absorbent layer, the thickness of these skin layers may be the same or different.
  • thermoplastic resin mentioned about the resin layer can be used individually or in mixture.
  • the skin layer resins constituting the respective skin layers may be the same or different.
  • the easily peelable layer is a layer containing an easily peelable resin.
  • the easily releasable resin is preferably composed of an acryl modified polyolefin or an ethylene-fatty acid vinyl copolymer.
  • the releasable layer may be present as a coating or as a film.
  • the thickness of the easily peelable layer can be 0.1 ⁇ m or more, 0.3 ⁇ m or more, 0.5 ⁇ m or more, 0.7 ⁇ m or more, or 1.0 ⁇ m or more in the coating mode, and 20.0 ⁇ m
  • the thickness may be 10.0 ⁇ m or less, 8.0 ⁇ m or less, 5.0 ⁇ m or less, or 3.0 ⁇ m or less, and in the embodiment of the film, 5 ⁇ m or more, 7 ⁇ m or more, 10 ⁇ m or more, 15 ⁇ m or more, 20 ⁇ m or more , 30 ⁇ m or more, or 40 ⁇ m or more, and 100 ⁇ m or less, 90 ⁇ m or less, 80 ⁇ m or less, 70 ⁇ m or less, 60 ⁇ m or less, or 50 ⁇ m or less.
  • the thickness of the easily peelable layer is 5 ⁇ m or more, 7 ⁇ m or more, 10 ⁇ m or more, 15 ⁇ m or more, 20 ⁇ m or more, 30 ⁇ m or more, or 40 ⁇ m It can be 100 ⁇ m or less, 90 ⁇ m or less, 80 ⁇ m or less, 70 ⁇ m or less, 60 ⁇ m or less, or 50 ⁇ m or less.
  • the peelable resin can be a resin that can be fused to polyvinyl chloride.
  • an easily peelable resin for example, acrylic modified polyolefin, ethylene-fatty acid vinyl copolymer and the like can be used.
  • the acrylic modified polyolefin may generally be a polyolefin in which (meth) acrylic monomers are graft-polymerized in the side chain.
  • An ethylene-fatty acid vinyl copolymer is generally a copolymer of an ethylene monomer and a fatty acid vinyl monomer.
  • Examples of such ethylene-fatty acid vinyl copolymer include ethylene-saturated fatty acid vinyl copolymer and ethylene-unsaturated fatty acid vinyl copolymer.
  • Examples of the ethylene-saturated fatty acid vinyl copolymer include ethylene-vinyl acetate copolymer and ethylene-vinyl propionate copolymer.
  • Examples of the ethylene-unsaturated fatty acid vinyl copolymer include ethylene-vinyl acrylate copolymer, ethylene-vinyl methacrylate copolymer, and ethylene-vinyl crotonate copolymer.
  • the blister pack lid of the present invention may have an optional other layer.
  • Other layers include, for example, adhesive layers present between each layer.
  • the lid for a blister pack of the present invention comprises a film forming step of forming an absorbent layer and a skin layer, a first laminating step of laminating an easily peelable layer on the skin layer, a base layer on the absorbent layer or the skin layer It can be manufactured by a method including a second laminating step of laminating. Either of the first laminating step and the second laminating step may be performed first or may be performed simultaneously.
  • the resin constituting the absorption layer and the skin layer is then kneaded using, for example, a batch kneader such as a kneader, a Banbury mixer, or a mixing roll conical mixer, or a continuous kneader such as a twin screw kneader.
  • the resin can be formed by forming the absorption layer and the skin layer integrally into a film by a co-extrusion method such as a multilayer inflation method or a multilayer T-die method.
  • the first lamination step may be performed via an adhesive layer by a dry lamination method, a sand lamination method or the like, or for a peelable layer by a printing means such as gravure printing, offset printing, flexographic printing, silk printing or the like It may be carried out by applying a resin to the skin layer.
  • the second lamination step can be performed, for example, by laminating the base material layer and the absorption layer or the skin layer via the adhesive layer by a dry lamination method, a sand lamination method, or the like.
  • the content-containing blister pack has a content, a blister container, and a lid.
  • the blister container at least comprises a polyvinyl chloride (PVC) layer and has a pocket.
  • PVC polyvinyl chloride
  • this lid material the above-mentioned lid material for blister packs can be used.
  • the easily peelable layer of the lid material is fused to the polyvinyl chloride layer of the blister container, whereby the contents are contained in the pocket and the blister container and the easily peelable layer are joined. And a non-joining portion corresponding to the pocket of the blister container and where the blister container and the easily peelable layer are not joined is formed, and when the lid material is peeled from the blister container, (I) the blister container can be interfacially peeled from the peelable layer, or (ii) at the joint, at least a part of the peelable layer follows the blister container and at the non-joint, All of the peelable layer can follow the absorbent layer.
  • the contents are not limited as long as they can be degraded by contact with the outside air, and include, in addition to medicines, foods, cosmetics, hygiene products, medical devices, medical instruments, electronic parts, and the like. Moreover, as a medicine, cleaning agents, agricultural chemicals, reagents, etc. other than a pharmaceutical preparation are included.
  • the blister container which at least comprises a PVC layer and has a pocket can be used.
  • Blister containers can be manufactured, for example, by forming a pocket for containing contents in a sheet for blister containers.
  • a forming method at the time of forming the pocket a flat plate type pneumatic forming method, a plug assist pressure forming method, a drum type vacuum forming method, a plug forming method and the like can be mentioned.
  • a plug molding method using a cylindrical rod (plug material) having a round tip end made of an ultrahigh molecular weight polyethylene resin having a viscosity average molecular weight of 1,000,000 or more is preferable for forming a pocket.
  • seat for blister containers comprised by the single layer PVC layer, or the sheet
  • the multilayer blister container sheet may have a substrate layer and a PVC layer.
  • a barrier layer, a reinforcing layer, an absorption layer, etc. may optionally be provided between the base material layer and the PVC layer, for example, the base material layer, the barrier layer, the reinforcing layer, the absorption layer, and the PVC layer in this order Have.
  • a dry laminating method, a sand laminating method, etc. may be mentioned.
  • the thickness of the sheet for blister containers can be, for example, 500 ⁇ m or less, 400 ⁇ m or less, 300 ⁇ m or less, 200 ⁇ m or less, 150 ⁇ m or less, or 100 ⁇ m or less from the viewpoint of appropriate strength as a blister container, stiffness, barrier property, etc. Also, it can be 50 ⁇ m or more, 60 ⁇ m, or 70 ⁇ m or more.
  • the PVC layer for blister containers is a layer composed of PVC.
  • the blister container can be fused to the blister pack lid of the present invention through this layer.
  • the content of PVC in the PVC layer for blister containers is 50% by mass or more, 60% by mass or more, 70% by mass or more, 80% by mass or more, or 90% by mass, based on the total mass of the sealing resin layer for blister containers It can be 100 mass% or less, 98 mass% or less, or 95 mass% or less.
  • the thickness of the PVC layer may be 300 ⁇ m or less, 200 ⁇ m or less, 150 ⁇ m or less, 130 ⁇ m or less, or 100 ⁇ m or less, or 10 ⁇ m or more, 20 ⁇ m or more, 30 ⁇ m or more, from the viewpoint of giving adequate formability to the blister container sheet. It may be 40 ⁇ m or 50 ⁇ m or more.
  • the resin used for the base material layer for blister containers is not particularly limited as long as it is a resin that gives the sheet for blister containers with an appropriate barrier property and formability.
  • polyethylene resin polyvinyl chloride, polyvinylidene chloride, polypropylene resin, saturated polyester, polyamide (for example, nylon (registered trademark), nylon 6, nylon 6, 6, nylon MXD 6), cyclic polyolefin (COP, COC) And fluorine-based resins (eg, polychlorotrifluoroethylene, polytetrafluoroethylene) and the like, and mixtures thereof.
  • polypropylene resins, polyamides and saturated polyesters can be mentioned.
  • the thickness of the substrate layer may be 10 ⁇ m or more, 20 ⁇ m or more, or 30 ⁇ m or more, or 300 ⁇ m or less, 200 ⁇ m or less, or 100 ⁇ m or less from the viewpoint of maintaining the barrier property and giving strength to the entire blister pack. May be there.
  • barrier layer for blister container Materials used for barrier layers for blister containers include metal foils such as aluminum foil, silica deposited films, aluminum deposited films, alumina deposited films, silica / alumina deposited films, vinylidene chloride coated films, polyvinylidene fluoride coated films, etc. A combination of these can be mentioned.
  • the thickness of the barrier layer may be 7 ⁇ m or more, 10 ⁇ m or more, or 20 ⁇ m or more, or 60 ⁇ m or less, 50 ⁇ m or less, or 40 ⁇ m or less in order to provide the blister container sheet with appropriate formability and barrier properties. Good.
  • the reinforcing layer for blister containers is used to improve the formability of the sheet for blister containers.
  • the resin used for the reinforcing layer for example, high density polyethylene, polyvinyl chloride, polypropylene resin, polyethylene terephthalate, polyamide (for example, nylon (registered trademark), nylon 6, nylon 6, 6, nylon MXD 6) and the like, and These mixtures are mentioned.
  • the thickness of the reinforcing layer may be, for example, 10 ⁇ m or more, 15 ⁇ m or more, or 25 ⁇ m or more, and may be 60 ⁇ m or less, or 50 ⁇ m or less.
  • the multilayer blister container sheet may have optional other layers.
  • Other layers include, for example, an absorbent layer containing an absorbent in a thermoplastic resin, a skin layer on the absorbent layer, and an adhesive layer for adhering each layer.
  • the same thing may be used for the absorption layer of a lid material, and the absorption layer of the sheet
  • the lid may be the blister pack lid described above.
  • the combination of the present invention is a combination of a blister pack lid and a blister container comprising at least a polyvinyl chloride layer and having a pocket.
  • the peelable layer is fused to the polyvinyl chloride layer of the blister container, thereby corresponding to the junction where the blister container and the peelable layer are bonded, and to the pocket of the blister container, and
  • the blister container and the easily peelable layer form a non-joining portion where they are not joined and when the lid material is peeled
  • the blister container can be interfacially peeled from the peelable layer, or (ii) at the joint, at least a part of the peelable layer follows the blister container and at the non-joint, All of the peelable layer can follow the absorbent layer.
  • the blister pack lid and blister container described above can be used as the blister pack lid and blister container, respectively.
  • Example 1 In co-extrusion molding by air-cooling inflation, a skin layer, an absorption layer, and a skin layer were arranged in this order to prepare a two-kind three-layer absorption film.
  • a linear low density polyethylene was used as the skin layer, and a resin prepared by melt-kneading hydrophilic zeolite and an ethylene-methacrylic acid copolymer was used as the resin for the absorption layer.
  • the thickness of each layer was 10 ⁇ m of the skin layer, 30 ⁇ m of the absorbing layer, and 10 ⁇ m of the skin layer.
  • the easily peelable layer is laminated on the other skin layer side by applying and drying an acryl-modified polyolefin as the easily peelable layer resin, and a lid material for blister pack of Example 1 is produced. did.
  • Comparative Example 1 Comparison was carried out in the same manner as in Example 1 except that the peelable layer was directly laminated on the aluminum foil side of the base layer without using the skin layer, the absorption layer, and the absorption film having the skin layer in this order.
  • the blister pack lid of Example 2 was produced.
  • Example 2 and Comparative Example 2 An ethylene-vinyl acetate copolymer film was used instead of the acrylic modified polyolefin, and this was laminated with a dry laminating adhesive, and the same as Example 1 and Comparative Example 1 except that an easily peelable layer was laminated. The lids for blister packs of Example 2 and Comparative Example 2 were produced.
  • Comparative Example 3 A lid for a blister pack of Comparative Example 3 was produced in the same manner as in Example 1 except that the easily peelable layer was not laminated.
  • Example 1 and Comparative Examples 1 and 3 the heat seal temperatures were also changed similarly to 140 ° C., 150 ° C., 160 ° C., and 170 ° C., respectively.
  • the evaluation criteria are as follows: :: Heat seal strength is 1.5 to 10 N / 15 mm. X: Heat seal strength is 1.5 N / 15 mm or less.
  • the lid material for blister pack produced was cut out to 100 mm ⁇ 100 mm, and used as a sample for moisture absorption test, and the mass of this sample was measured.
  • the mass of the sample was measured after the sample was exposed to the environment at a temperature of 60 ° C. and a relative humidity of 100% RH for 6 hours.
  • the evaluation criteria are as follows: ⁇ : Moisture absorption is 1 g / m 2 or more. X: Moisture absorption is less than 1 g / m 2 .
  • lidding materials for blister packs of Examples 1 and 2 have both good heat seal strength and absorbency to a PVC surface.
  • the easily peelable layer was cohesively fractured and peeled, and the absorbent layer was not broken. Therefore, it can be understood that the lid for a blister pack of the present invention can be easily opened without breaking the absorbent layer.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Food Science & Technology (AREA)
  • Packages (AREA)
  • Wrappers (AREA)
PCT/JP2018/040741 2017-11-10 2018-11-01 ブリスターパック用蓋材 Ceased WO2019093227A1 (ja)

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US16/761,141 US20200270037A1 (en) 2017-11-10 2018-11-01 Cover material for blister packs
EP18876602.6A EP3708515A4 (en) 2017-11-10 2018-11-01 Cover material for blister packs
CN201880069914.XA CN111278745B (zh) 2017-11-10 2018-11-01 泡罩包装用盖材

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US11903747B2 (en) * 2021-03-04 2024-02-20 Paxxus, Inc. Breathable package with cohesive color heat seal indicator
US20230312217A1 (en) * 2022-04-05 2023-10-05 F&S Tool, Inc. Contaminant-resistant packaging
WO2025101858A1 (en) * 2023-11-08 2025-05-15 Csp Technologies, Inc. Packages containing desiccant entrained polymer components

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US20200270037A1 (en) 2020-08-27
JP2019089561A (ja) 2019-06-13
JP7002298B2 (ja) 2022-01-20
CN111278745B (zh) 2023-01-24
EP3708515A1 (en) 2020-09-16
CN111278745A (zh) 2020-06-12

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