WO2015163450A1 - Film formant barrière contre les gaz et stratifié formant barrière contre les gaz - Google Patents

Film formant barrière contre les gaz et stratifié formant barrière contre les gaz Download PDF

Info

Publication number
WO2015163450A1
WO2015163450A1 PCT/JP2015/062538 JP2015062538W WO2015163450A1 WO 2015163450 A1 WO2015163450 A1 WO 2015163450A1 JP 2015062538 W JP2015062538 W JP 2015062538W WO 2015163450 A1 WO2015163450 A1 WO 2015163450A1
Authority
WO
WIPO (PCT)
Prior art keywords
gas barrier
film
laminate
base film
water
Prior art date
Application number
PCT/JP2015/062538
Other languages
English (en)
Japanese (ja)
Inventor
沙耶佳 星
神永　純一
悠希 尾村
Original Assignee
凸版印刷株式会社
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 凸版印刷株式会社 filed Critical 凸版印刷株式会社
Publication of WO2015163450A1 publication Critical patent/WO2015163450A1/fr

Links

Images

Classifications

    • 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
    • B32B27/40—Layered products comprising a layer of synthetic resin comprising polyurethanes
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L75/00—Compositions of polyureas or polyurethanes; Compositions of derivatives of such polymers
    • C08L75/04—Polyurethanes
    • 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
    • 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

Definitions

  • the present invention relates to a gas barrier film and a gas barrier property used in the packaging field of dried foods, confectionery, bread, delicacy and other foods that dislike moisture and oxygen, and disposable warmers, tablets, powdered medicines, poultices, patches, and patches. It relates to a laminate. More specifically, the present invention relates to a gas barrier film and a gas barrier laminate including a gas barrier coating layer formed from an inorganic layered compound and a resin.
  • Packaging materials used for packaging foods, pharmaceuticals, etc. contain water, oxygen, and other gases that alter the contents in order to prevent the contents from being altered or spoiled and to maintain the functions and properties of the contents.
  • the property of blocking entry is required.
  • these packaging materials have been provided with a gas barrier layer formed from a material having gas barrier properties.
  • the gas barrier layer has been provided on a substrate such as a film or paper by a sputtering method, a vapor deposition method, a wet coating method, a printing method, or the like.
  • a metal foil formed from a metal such as aluminum, a metal vapor-deposited film, a resin film such as polyvinyl alcohol, an ethylene-vinyl alcohol copolymer, or polyvinylidene chloride is used (for example, Patent Documents). 1-7).
  • the metal foil and the metal vapor deposition film are excellent in gas barrier properties, they are opaque, so the contents cannot be confirmed. Moreover, since it is inferior to a stretching property, a crack will arise by several% elongation and gas barrier property will fall. Furthermore, there are a number of problems, such as the need to dispose of them as non-combustible materials when discarded after use.
  • a gas barrier film having a resin film such as polyvinyl alcohol or ethylene-vinyl alcohol copolymer exhibits excellent gas barrier properties under low humidity.
  • the gas barrier property decreases as the humidity increases, and the gas barrier property is lost when the humidity is 70% RH or more, and thus there is a limitation in use.
  • a method has been proposed in which an inorganic layered compound is added to polyvinyl alcohol, ethylene-vinyl alcohol copolymer or the like to reduce the humidity dependency.
  • this method does not lead to a sufficient improvement, has the adverse effect of lowering the adhesion between the base material and the resin film, and it is difficult to obtain sufficient strength as a packaging material.
  • a gas barrier film having a resin film such as polyvinylidene chloride has low humidity dependence and exhibits excellent gas barrier properties.
  • a gas barrier material that does not contain a chlorine-based substance which can be a source of harmful substances during disposal. Accordingly, there has been a strong demand for a gas barrier resin film that is a material that does not contain a chlorine-based substance, has a high gas barrier property even in a high humidity atmosphere, and has good adhesion to a substrate.
  • Japanese Unexamined Patent Publication No. 2002-321301 Japanese Unexamined Patent Publication No. 2001-287294 Japanese Unexamined Patent Publication No. 11-165369 Japanese Unexamined Patent Publication No. 6-93133 Japanese Unexamined Patent Publication No. 9-150484 Japanese Patent No. 3764109 International Publication WO2013 / 129520
  • the present invention has been made in view of the above circumstances, and provides a gas barrier film and a gas barrier laminate that have excellent gas barrier properties in a high-humidity atmosphere and have sufficient laminate strength as a packaging material. With the goal.
  • an aqueous polyurethane resin containing a polyurethane resin having an acid group and a polyamine compound, a water-based coating material having a water-soluble polymer and an inorganic layered mineral as main components, A gas barrier film coated therewith has been proposed (for example, see Patent Document 7).
  • This gas barrier film is excellent in gas barrier properties in a high-humidity atmosphere, and has good adhesion to the substrate and cohesive strength of the film.
  • the initial laminate strength is good, but if it is stored for a long time in a high humidity atmosphere, the time elapses.
  • the laminate strength was lowered and peeling occurred in a part of the laminate (hereinafter referred to as “delamination”).
  • the gas barrier film according to the first aspect of the present invention comprises a base film formed from a plastic material, a polyurethane resin having an acid group provided on at least one surface of the base film, and a polyamine compound.
  • the three-dimensional surface roughness (arithmetic mean) Sa is 50 nm or more.
  • the base film is formed of one plastic material selected from polypropylene, polyethylene terephthalate, and nylon.
  • the gas barrier laminate according to the second aspect of the present invention includes a gas barrier film according to the first aspect, an adhesive layer and a heat sealable resin layer, which are sequentially laminated on at least one surface of the gas barrier film. .
  • a base film made of a plastic material having a three-dimensional surface roughness (arithmetic mean) Sa of 50 nm or more is used, and an acid group is formed on at least one surface of the base film.
  • a gas barrier layer containing, as main components, an aqueous polyurethane resin (A) containing a polyurethane resin and a polyamine compound, a water-soluble polymer (B) and an inorganic layered mineral (C), in a high humidity atmosphere
  • A aqueous polyurethane resin
  • B water-soluble polymer
  • C inorganic layered mineral
  • the gas barrier film according to the first embodiment of the present invention will be described.
  • the present embodiment is specifically described for better understanding of the gist of the invention, and does not limit the invention unless otherwise specified.
  • the gas barrier film 1 As shown in FIG. 1, the gas barrier film 1 according to the present embodiment has a base film 2 formed of a plastic material and an acid group provided on at least one surface of the base film 2.
  • the surface of the base film 2 on which the gas barrier layer 3 is provided has a three-dimensional surface roughness (arithmetic average) Sa of 50 nm or more.
  • the surface on which the gas barrier layer 3 is provided in the substrate film 2 is one surface when the gas barrier layer 3 is provided only on one surface (first surface) of the substrate film 2, and the gas barrier layer.
  • 3 is provided on one surface and the other surface (second surface) of the base film 2, that is, on both surfaces, it is the one surface and the other surface.
  • the three-dimensional surface roughness (arithmetic mean) Sa of the base film 2 formed from a plastic material is less than 50 nm, the adhesion strength between the base film 2 and the gas barrier layer 3 is reduced, and the gas barrier film 1 Sufficient laminate strength cannot be obtained.
  • a base material formed from any plastic material can be selected as the base material film 2.
  • the three-dimensional surface roughness (arithmetic mean) Sa of the base film 2 is preferably 70 nm or more, and more preferably 80 nm or more.
  • the upper limit value of the three-dimensional surface roughness (arithmetic average) Sa is not particularly provided, but the base film 2 having an extremely large surface roughness is not preferable because it causes a decrease in gas barrier properties.
  • the three-dimensional surface roughness (arithmetic mean) Sa is the two-dimensional roughness described in JIS B0601-2013 “Product Geometric Specification (GPS)-Surface Properties: Contour Curve Method-Terminology, Definitions and Surface Properties Parameters”. This is a value obtained by calculating the center line average roughness (Ra) of the parameter as a three-dimensional surface.
  • the coordinate axes orthogonal to the central surface of the roughness surface are the X and Y axes, the axis orthogonal to the central surface is the Z axis, the roughness surface is f (x, y), and the reference surface sizes Lx and Ly.
  • the three-dimensional surface roughness (arithmetic mean) Sa is calculated from the following formula (1).
  • Examples of the base film 2 formed from a plastic material include olefin-based resins such as polyethylene, polypropylene, and poly C2-10 such as propylene-ethylene copolymer, and polyester-based materials such as polyethylene terephthalate and polybutylene terephthalate.
  • olefin-based resins such as polyethylene, polypropylene, and poly C2-10 such as propylene-ethylene copolymer
  • polyester-based materials such as polyethylene terephthalate and polybutylene terephthalate.
  • polyamide polyamide such as nylon 6 and aliphatic polyamide such as nylon 66, aromatic polyamide such as polymetaxylylene adipamide, polystyrene, polyvinyl acetate, ethylene-vinyl acetate copolymer, polyvinyl alcohol, A vinyl resin such as an ethylene-vinyl alcohol copolymer, an acrylic resin such as a single or copolymer of a (meth) acrylic monomer such as polymethyl methacrylate or polyacrylonitrile, or a cellophane. Lum, and the like. These resins are used alone or in combination of two or more.
  • the base film 2 may be a film using an anti-blocking agent such as silica, talc, diatomaceous earth, or an acrylic polymer, an additive such as an antistatic agent such as a filler, a surfactant, or a metal oxide.
  • an anti-blocking agent such as silica, talc, diatomaceous earth, or an acrylic polymer
  • an additive such as an antistatic agent such as a filler, a surfactant, or a metal oxide.
  • the surface of the base film 2 is made to have fine irregularities, and the three-dimensional surface roughness of the surface (one side or both sides) of the base film 2
  • the (arithmetic average) Sa can be adjusted to an arbitrary value.
  • the base film 2 a single-layer film made of a single resin, a single-layer film using a plurality of resins, a laminated film, or the like is used. Moreover, you may use the laminated base material which laminated
  • a polyolefin resin film especially polypropylene film
  • a polyester resin film especially polyethylene terephthalate resin film
  • a polyamide resin film especially nylon film
  • the base film 2 may be an unstretched film, may be a uniaxial or biaxially oriented film, may be a film that has been surface-treated (such as corona discharge treatment), anchor coat, or undercoat treatment. Good. Furthermore, the base film 2 may be a laminated film in which a plurality of resins or metals are laminated. Moreover, the base film 2 is subjected to corona treatment, low-temperature plasma treatment, etc. on the surface to be coated (the surface on which a film such as the gas barrier layer 3 is formed), thereby providing good wettability to the coating agent and adhesive strength to the film. The film which improved can be used.
  • the thickness of the base film 2 is not particularly limited, and is appropriately selected according to the price and application, taking into consideration the suitability as a packaging material and the suitability of other coatings.
  • the thickness of the base film 2 is practically 3 ⁇ m to 200 ⁇ m, preferably 5 ⁇ m to 120 ⁇ m, more preferably 10 ⁇ m to 100 ⁇ m.
  • a gas barrier layer 3 having, as main components, an aqueous polyurethane resin (A) containing a polyurethane resin having an acid group and a polyamine compound, a water-soluble polymer (B), and an inorganic layered mineral (C) is known.
  • a coating agent containing as a main component the solvent component is removed by drying.
  • the coating agent can be prepared by, for example, blending the above three components at a predetermined blending ratio and dissolving or dispersing them in water or a water / alcohol mixture.
  • the aqueous polyurethane resin (A) containing a polyurethane resin having an acid group and a polyamine compound is rigid by bonding the polyamine compound as a crosslinking agent and the acid group of the polyurethane resin. It forms a simple molecular skeleton and exhibits gas barrier properties.
  • the dry film of the water-based polyurethane resin (A) containing a polyurethane resin having an acid group and a polyamine compound is insoluble in water, like a general polyurethane resin, and therefore has a gas barrier film having a low humidity dependency. Become.
  • the bond between the polyamine compound and the acid group of the polyurethane resin may be an ionic bond (for example, an ionic bond between a tertiary amino group and a carboxyl group) or a covalent bond (for example, an amide bond). Also good. Therefore, as the polyamine compound, various polyamines having two or more basic nitrogen atoms selected from the group consisting of a primary amino group, a secondary amino group, and a tertiary amino group are used.
  • the water-soluble polymer (B) is a polymer that can be completely dissolved or finely dispersed in water at room temperature.
  • the water-soluble polymer (B) is not particularly limited as long as it is a compound that can penetrate and coordinate (intercalate) between unit crystal layers of the inorganic layered mineral (C) described later.
  • polyvinyl alcohol and derivatives thereof cellulose derivatives such as carboxymethyl cellulose and hydroxyethyl cellulose, starches such as oxidized starch, etherified starch and dextrin, polyvinylpyrrolidone, polyacrylic acid, polymethacrylic acid or esters thereof, salts and These copolymers, copolymer polyesters containing polar groups such as sulfoisophthalic acid, vinyl polymers such as polyhydroxyethyl methacrylate and its copolymers, urethane polymers, or carboxyls of these various polymers Examples thereof include functional group-modified polymers such as groups.
  • the water-soluble polymer (B) at least one kind is preferably a polyvinyl alcohol polymer and a derivative thereof, and a polyvinyl alcohol resin having a saponification degree of 95% or more and a polymerization degree of 300 to 2000 is particularly preferable.
  • the higher the degree of saponification and polymerization the lower the hygroscopic swelling property of the polyvinyl alcohol resin.
  • the saponification degree of the polyvinyl alcohol resin is less than 95%, it is difficult to obtain a sufficient gas barrier property.
  • the polymerization degree of the polyvinyl alcohol resin is less than 300, the gas barrier property is lowered.
  • the inorganic layered mineral (C) is an inorganic compound in which ultrathin unit layers overlap to form one layered particle.
  • a mineral that swells and cleaves in water is preferable, and among these, a clay compound having a swelling property in water is particularly preferably used.
  • the inorganic layered mineral (C) is a clay compound having the property of coordinating and absorbing / swelling water between ultrathin unit layers, and generally Si 4+ is less than O 2 ⁇ .
  • This clay compound may be a natural compound or a synthesized compound.
  • Typical types of inorganic layered minerals include hydrous silicates such as phyllosilicate minerals, such as halloysite, kaolinite clay minerals such as kaolinite, enderite, dickite and nacrite, and antigolite.
  • hydrous silicates such as phyllosilicate minerals, such as halloysite, kaolinite clay minerals such as kaolinite, enderite, dickite and nacrite, and antigolite.
  • antigolite clay minerals such as chrysotile, montmorillonite, smectite group clay minerals such as beidelite, nontronite, saponite, hectorite, saconite, and stevensite, vermiculite clay minerals such as vermiculite, muscovite, phlogopite, etc.
  • Mica, mica or mica clay minerals such as margarite, tetrasilic mica, and teniolite.
  • inorganic layered minerals (C) are used alone or in combination of two or more.
  • smectite group clay minerals such as montmorillonite and mica group clay minerals such as water-swellable mica are particularly preferable.
  • the size of the inorganic layered mineral (C) is preferably an average particle size of 10 ⁇ m or less and a thickness of 500 nm or less.
  • at least one is particularly preferably a water-swellable synthetic mica having an average particle diameter of 1 ⁇ m to 10 ⁇ m and a thickness of 10 nm to 100 nm.
  • the water-swellable synthetic mica has high compatibility with the water-based polyurethane resin (A) and the water-soluble polymer (B), so Since there are few impurities compared with it, the gas barrier property and the film cohesion force which originate in an impurity are not caused.
  • the water-swellable synthetic mica since the water-swellable synthetic mica has a fluorine atom in the crystal structure, it contributes to suppressing the humidity dependence of the gas barrier property of the film formed from the aqueous coating agent. Furthermore, since the water-swellable synthetic mica has a higher aspect ratio than other water-swellable inorganic layered minerals, the maze effect works more effectively, and in particular, a gas barrier for a film formed from an aqueous coating agent. It contributes to high expression.
  • the coating agent for forming the gas barrier layer 3 may contain various additives as long as the gas barrier property of the gas barrier film 1 and the strength as a packaging material are not impaired.
  • additives include reactive isocyanates such as polyisocyanates, carbodiimides, epoxy compounds, oxazolidone compounds, and aziridine compounds, antioxidants, weathering agents, heat stabilizers, lubricants, crystal nucleating agents, ultraviolet absorbers, Examples thereof include a plasticizer, an antistatic agent, a colorant, a filler, a surfactant, and a silane coupling agent.
  • the coating agent that forms the gas barrier layer 3 according to the present embodiment mainly contains water, and may contain a solvent that dissolves or uniformly mixes in water.
  • the solvent include alcohols such as methanol, ethanol, and isopropanol, ketones such as acetone and methyl ethyl ketone, ethers such as tetrahydrofuran, cellosolves, carbitols, and nitriles such as acetonitrile.
  • the coating agent for forming the gas barrier layer 3 preferably has a total solid content concentration of 8% by mass or more, a viscosity at 23 ° C. of 10 mPa ⁇ s to 50 mPa ⁇ s, and a total solid content concentration of 10% by mass. More preferably, the viscosity at 23 ° C. is 10 mPa ⁇ s to 40 mPa ⁇ s.
  • the gas barrier layer 3 As a wet coating method for forming the gas barrier layer 3 according to this embodiment, roll coating, gravure coating, reverse coating, die coating, screen printing, spray coating, or the like is used. A known drying method such as hot air drying, hot roll drying, infrared irradiation, etc. is applied after coating the above-mentioned coating agent on one surface, or one surface or the other surface of the base film 2 formed from a plastic material. By using it, a dry film is formed and the gas barrier layer 3 is obtained.
  • a known drying method such as hot air drying, hot roll drying, infrared irradiation, etc.
  • the thickness of the gas barrier layer 3 is set according to the gas barrier properties required for the gas barrier film 1 of the present embodiment, but is preferably 0.1 ⁇ m to 5 ⁇ m, more preferably 0.2 ⁇ m to 2 ⁇ m. preferable. If the thickness of the gas barrier layer 3 is less than 0.1 ⁇ m, it is difficult to obtain sufficient gas barrier properties. On the other hand, if the thickness of the gas barrier layer 3 exceeds 5 ⁇ m, it is not only difficult to provide a uniform coating film surface, but also an increase in drying load and an increase in production cost are undesirable.
  • the gas barrier film 1 may have a protective layer, a printing layer, an anchor coat layer, a light shielding layer, other functional layers, and the like as necessary.
  • the gas barrier film 1 uses a base film 2 formed from a plastic material having a three-dimensional surface roughness (arithmetic mean) Sa of 50 nm or more, and at least one surface of the base film 2
  • the gas barrier layer 3 containing the water-based polyurethane resin (A), the water-soluble polymer (B), and the inorganic layered mineral (C) as main components is provided.
  • the laminated film in which another film is bonded to the surface provided with the gas barrier layer 3 of the gas barrier film 1 according to this embodiment by applying an adhesive the deterioration of the laminate strength is small. Therefore, by using it as a packaging material, it is possible to improve the quality retention of the contents and to utilize it as various packaging materials.
  • Gas barrier laminate The gas barrier laminate according to the second embodiment of the present invention will be described. As shown in FIG. 2, the gas barrier laminate 4 according to the second embodiment of the present invention is laminated in order on the gas barrier film 1 according to the first embodiment described above and at least one surface of the gas barrier film 1. It is the laminated body provided with the adhesive bond layer 5 and the heat-sealable resin layer 6 which were made.
  • the heat-sealable resin layer 6 is laminated on the gas barrier layer 3 of the gas barrier film 1 according to the first embodiment described above via the adhesive layer 5. It is a laminated body formed.
  • polyolefin films such as low density polyethylene, linear low density polyethylene, medium density polyethylene, and polypropylene, polyester copolymer films, polyacrylonitrile films, vinyl acetate copolymers.
  • a film or the like can be used.
  • polyolefin films are particularly preferable because they are excellent in low-temperature heat sealing properties and inexpensive.
  • a laminating method a known dry laminating method, an extrusion laminating method, a non-sol laminating method, or the like can be used.
  • various adhesives can be selected according to various laminating methods. For example, known adhesives such as polyurethane, polyester, polyether, epoxy, polyethyleneimine, and polybutadiene can be used.
  • the heat-sealable resin layer 6 is laminated on the gas barrier layer 3 of the gas barrier film 1 according to the above-described first embodiment via the adhesive layer 5. Therefore, it can be used as a packaging material that can be heat sealed.
  • aqueous polyurethane resin (A) containing a polyurethane resin having an acid group and a polyamine compound (hereinafter sometimes referred to as “component (A)”) a polyurethane dispersion “Takelac WPB-341” manufactured by Mitsui Chemicals, Inc.
  • component (A) a polyurethane dispersion “Takelac WPB-363” manufactured by Mitsui Chemicals, Inc.
  • component (B) As a water-soluble polymer (B) (hereinafter sometimes referred to as “component (B)”), a polyvinyl alcohol resin, Khoray PVA-117 (saponification degree: 98 to 99%, polymerization degree: 1700), Alternatively, Poval PVA-105 (saponification degree 98 to 99%, polymerization degree 500) manufactured by Kuraray Co., Ltd. was used.
  • component (C) water-swellable synthetic mica (Somasif MEB-3 manufactured by Corp Chemical Co.), montmorillonite (Kunipia manufactured by Kunimine Industries Co., Ltd.) F) was used.
  • Component (A), component (B), and component (C) were blended at the solid content blending ratio shown in Table 1, heated and mixed at 80 ° C., and then cooled to room temperature. Thereafter, the solution is diluted with ion-exchanged water and isopropanol so that 10% by mass in the solvent is isopropanol and the final solid content concentration is 9%, and the curing agents described in Tables 1 and 2 (Mitsui A water-soluble polysocyanate takenate WD-725 manufactured by Kagaku Co. was added to prepare a coating agent.
  • Each substrate film (polyethylene terephthalate (PET) film, biaxially stretched polypropylene (OPP)) having a difference in the three-dimensional surface roughness (arithmetic mean) Sa shown in Table 1 using a gravure coater is used as the coating agent.
  • PET polyethylene terephthalate
  • OPP biaxially stretched polypropylene
  • Table 1 a gravure coater
  • the surface on which the gas barrier layer is formed is subjected to a dry lamination process with a polyether adhesive (Takelac A-969V manufactured by Mitsui Chemicals, Takenate A-5 manufactured by Mitsui Chemicals) having a thickness of 30 ⁇ m.
  • a polyether adhesive Takelac A-969V manufactured by Mitsui Chemicals, Takenate A-5 manufactured by Mitsui Chemicals
  • An unstretched polypropylene film (CPP GLC manufactured by Mitsui Chemicals, Inc.) was laminated. Thereafter, curing was carried out at 40 ° C. for 48 hours to obtain laminates of Examples 1 to 10 and Comparative Examples 1 to 7 shown in Tables 1 and 2.
  • T-type laminate strength The laminates of Examples 1 to 10 and Comparative Examples 1 to 7 were stored for 2 months in a constant temperature bath at 40 ° C. and 75% humidity. After storage, the laminate is cut into strips with a width of 15 mm, and the laminate is peeled off at a rate of 300 mm / min with a tensile tester Tensilon so that the peel angle between the base film and the sealant film is 90 °. The strength was measured. The results are shown in Tables 1 and 2.
  • Comparative Example 7 in addition to obtaining a sufficient laminate strength, the value of oxygen permeability in an atmosphere of 20 ° C. and humidity 80% RH is 500 cm 3 / (m 2 ⁇ day ⁇ MPa) or more, and good gas barrier properties under high humidity could not be obtained.
  • the evaluation of the laminate strength of the gas barrier laminate was not sufficient only with the T-type laminate strength.
  • a delamination defect (floating) occurs due to repeated load applied to the bent portion of the packaging material due to vibration during transportation. ) May occur.
  • JIS Z 0232 Method A
  • a difference was observed between the example and the comparative example in the number of occurrences of floating.
  • the number of floats in this test tended to be more highly correlated with 180 ° laminate strength than T-type laminate strength.
  • the strength difference between the example and the comparative example could be clarified by measuring the 180 ° laminate strength in addition to the T-type laminate strength of the gas barrier laminate.
  • the gas barrier film and gas barrier laminate of the present invention have both high gas barrier properties in a high humidity atmosphere, sufficient adhesion strength to the substrate and cohesive strength of the film, and are stored for a long time in a high humidity atmosphere.
  • the laminate strength does not deteriorate with the passage of time and no delamination occurs, it can be used in various fields as various packaging materials.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Laminated Bodies (AREA)
  • Packages (AREA)
  • Coating Of Shaped Articles Made Of Macromolecular Substances (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

L'invention concerne un film formant barrière contre les gaz comprenant un film de matériau de base qui est formé à partir d'un matériau plastique, et une couche formant barrière contre les gaz qui est placée sur au moins une surface du film de matériau de base et qui contient, comme principaux éléments constitutifs, les éléments suivants : une résine aqueuse de polyuréthane (A) qui contient une résine de polyuréthane contenant un groupe acide et un composé polyamine ; un polymère soluble dans l'eau (B) ; et un minéral inorganique en couches (C). La rugosité de surface tridimensionnelle (Sa) (moyenne arithmétique) de la surface du film de matériau de base sur laquelle est placée la couche formant barrière contre les gaz est de 50 nm ou plus.
PCT/JP2015/062538 2014-04-25 2015-04-24 Film formant barrière contre les gaz et stratifié formant barrière contre les gaz WO2015163450A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2014091987A JP6613549B2 (ja) 2014-04-25 2014-04-25 ガスバリア性フィルムおよびガスバリア性積層体
JP2014-091987 2014-04-25

Publications (1)

Publication Number Publication Date
WO2015163450A1 true WO2015163450A1 (fr) 2015-10-29

Family

ID=54332610

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2015/062538 WO2015163450A1 (fr) 2014-04-25 2015-04-24 Film formant barrière contre les gaz et stratifié formant barrière contre les gaz

Country Status (2)

Country Link
JP (1) JP6613549B2 (fr)
WO (1) WO2015163450A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017133935A1 (fr) 2016-02-03 2017-08-10 Basf Se Compositions aqueuses de revêtement à un composant contenant du polyuréthane et des phyllosilicates destinée à des revêtements formant barrière à l'oxygène
EP3613679A4 (fr) * 2017-04-20 2021-02-24 Toyo Seikan Group Holdings, Ltd. Matériau de conditionnement
EP3892463A4 (fr) * 2018-12-05 2022-01-05 Toppan Printing Co., Ltd. Film barrière au gaz

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6806753B2 (ja) * 2018-09-28 2021-01-06 住友ベークライト株式会社 カバーテープおよび電子部品用包装体
JP7314506B2 (ja) * 2018-12-18 2023-07-26 凸版印刷株式会社 ガスバリア性フィルム及びその製造方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09111017A (ja) * 1995-10-23 1997-04-28 Toray Ind Inc ガスバリアフィルム及びその製造方法
JPH1044299A (ja) * 1996-08-06 1998-02-17 Toray Ind Inc 積層ガスバリアフィルム
JP2002037908A (ja) * 2000-07-31 2002-02-06 Toppan Printing Co Ltd 印刷適性を有するガスバリアーコートフイルム
JP2006159801A (ja) * 2004-12-10 2006-06-22 Oji Paper Co Ltd ガスバリア積層体
WO2013129520A1 (fr) * 2012-02-28 2013-09-06 凸版印刷株式会社 Agent de revêtement aqueux, et film barrière au gaz

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09111017A (ja) * 1995-10-23 1997-04-28 Toray Ind Inc ガスバリアフィルム及びその製造方法
JPH1044299A (ja) * 1996-08-06 1998-02-17 Toray Ind Inc 積層ガスバリアフィルム
JP2002037908A (ja) * 2000-07-31 2002-02-06 Toppan Printing Co Ltd 印刷適性を有するガスバリアーコートフイルム
JP2006159801A (ja) * 2004-12-10 2006-06-22 Oji Paper Co Ltd ガスバリア積層体
WO2013129520A1 (fr) * 2012-02-28 2013-09-06 凸版印刷株式会社 Agent de revêtement aqueux, et film barrière au gaz

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017133935A1 (fr) 2016-02-03 2017-08-10 Basf Se Compositions aqueuses de revêtement à un composant contenant du polyuréthane et des phyllosilicates destinée à des revêtements formant barrière à l'oxygène
US11136463B2 (en) 2016-02-03 2021-10-05 Basf Se One-component aqueous coating compositions containing polyurethane and phyllosilicates for oxygen barrier coatings
EP3613679A4 (fr) * 2017-04-20 2021-02-24 Toyo Seikan Group Holdings, Ltd. Matériau de conditionnement
US11365038B2 (en) 2017-04-20 2022-06-21 Toyo Seikan Group Holdings. Ltd. Packaging material
EP3892463A4 (fr) * 2018-12-05 2022-01-05 Toppan Printing Co., Ltd. Film barrière au gaz

Also Published As

Publication number Publication date
JP6613549B2 (ja) 2019-12-04
JP2015208923A (ja) 2015-11-24

Similar Documents

Publication Publication Date Title
JP6191221B2 (ja) 水系コーティング剤およびガスバリア性フィルム
JP6210145B2 (ja) 包装容器
JP6176239B2 (ja) ガスバリア性積層体
JP6326740B2 (ja) グラビア印刷用水系コーティング剤およびガスバリア性フィルム
JP6287064B2 (ja) ガスバリア性フィルム
WO2015163450A1 (fr) Film formant barrière contre les gaz et stratifié formant barrière contre les gaz
WO2015163441A1 (fr) Film formant barrière contre les gaz et stratifié formant barrière contre les gaz
JP7052202B2 (ja) 水系コーティング剤およびこれを用いたガスバリア性フィルム
JP2015044943A (ja) グラビア印刷用水系コーティング剤およびガスバリア性フィルム
US11780978B2 (en) Gas barrier film
JP6524781B2 (ja) コーティング剤およびガスバリア性フィルム
JP7400192B2 (ja) 基材フィルムの搬送装置および当該基材を用いたガスバリアフィルムの製造方法
WO2019208237A1 (fr) Film barrière aux gaz

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 15782365

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 15782365

Country of ref document: EP

Kind code of ref document: A1