WO2022138417A1 - Stratifié barrière aux gaz et matériau d'emballage - Google Patents

Stratifié barrière aux gaz et matériau d'emballage Download PDF

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Publication number
WO2022138417A1
WO2022138417A1 PCT/JP2021/046418 JP2021046418W WO2022138417A1 WO 2022138417 A1 WO2022138417 A1 WO 2022138417A1 JP 2021046418 W JP2021046418 W JP 2021046418W WO 2022138417 A1 WO2022138417 A1 WO 2022138417A1
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Prior art keywords
gas barrier
layer
film
metal
metal compound
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PCT/JP2021/046418
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English (en)
Japanese (ja)
Inventor
貴之 久保田
浩之 加賀谷
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Dic株式会社
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Priority to JP2022520245A priority Critical patent/JP7272508B2/ja
Publication of WO2022138417A1 publication Critical patent/WO2022138417A1/fr

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    • 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
    • B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
    • 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

Definitions

  • the present invention is a gas barrier laminate, characterized in that a metal alkoxide (A) -containing layer and a metal compound (B) -containing layer are formed on at least one surface of a base material, and a gas barrier laminate. It relates to a package using it.
  • Laminates for packaging materials used for packaging foods and pharmaceuticals, or laminates used for packaging electronic device-related members, etc., are subject to alteration and oxidation of their contents and laminated members.
  • a gas barrier laminate is used to prevent.
  • Such a gas barrier laminate is required to block the permeation of oxygen and moisture to prevent deterioration of the contents.
  • a barrier film composed of a polymer having a high oxygen barrier property, a laminated film using the barrier film as a base material and laminating a coating layer, and the like have been used.
  • a vapor-deposited layer made of an inorganic compound is used as a first layer, and (1) a water-soluble polymer and (2) one or more kinds of metal alkoxides or metal alkoxide hydrolysates.
  • a gas barrier laminated film in which a coating agent containing an aqueous solution containing tin chloride or a water-alcohol mixed solution as a main component is applied, and a gas barrier coating layer formed by heating and drying is sequentially laminated as a second layer has been proposed. (See Patent Document 1).
  • this gas barrier laminated film exhibits high gas barrier properties, and has water resistance and moisture resistance.
  • the second layer of the film of the gas barrier film is a hydrogen bond between a metal alkoxide hydrolyzate and a water-soluble polymer having a hydroxyl group.
  • the film layer swells due to hydrothermal treatment, and there is a problem that the gas barrier property deteriorates.
  • An object of the present invention is to provide a gas barrier laminate having excellent gas barrier properties and excellent retort resistance (hereinafter referred to as retort resistance), and a package made of the gas barrier laminate. ..
  • the present invention is a gas barrier laminate, characterized in that a metal alkoxide (A) -containing layer and a metal compound (B) -containing layer are formed on at least one surface of a base material, and a gas barrier laminate.
  • A metal alkoxide
  • B metal compound
  • the present invention is a gas barrier laminate, characterized in that a metal alkoxide (A) -containing layer and a metal compound (B) -containing layer are formed on at least one surface of a base material. It relates to a laminate.
  • the present invention relates to the gas barrier laminate according to [1], wherein the metal compound (B) is a compound containing at least one selected from zinc, calcium, magnesium and titanium. Is.
  • the present invention relates to the gas barrier laminate according to [1] or [2], wherein the metal compound (B) is a metal oxide.
  • the present invention relates to the gas barrier laminate according to any one of [1] to [3], wherein the metal alkoxide (A) is one or more selected from alkoxysilanes. be.
  • the present invention relates to the gas barrier laminate according to any one of [1] to [4], wherein the metal compound (B) has an average particle size of 0.2 ⁇ m or less. be.
  • the present invention relates to the gas barrier laminate according to any one of [1] to [5], wherein the base material is a thin-film-deposited base material.
  • the present invention is a gas barrier laminate, characterized in that a metal alkoxide (A) -containing layer and a metal compound (B) -containing layer are sequentially formed on at least one surface of a base material.
  • the gas barrier laminate according to any one of [1] to [6].
  • the present invention relates to a package using the gas barrier laminate according to any one of [1] to [7].
  • gas barrier laminate and the package of the present invention excellent gas barrier properties and excellent retort resistance can be obtained, and therefore, as a laminate used for various packaging material applications and packaging applications such as electronic device-related members. It is useful.
  • the gas barrier laminate of the present invention is characterized in that a metal alkoxide (A) -containing layer and a metal compound (B) -containing layer are formed on at least one surface of the base material.
  • A metal alkoxide
  • B metal compound
  • the metal alkoxide (A) used in the present invention is a compound represented by the general formula R 1 n M (OR) m (M is an atom selected from a metal such as Si, Al, Ti, R is an alkyl group).
  • the present invention is not particularly limited as long as it forms a coating film layer by the sol-gel method, and may be a hydrolyzate of the metal alkoxide.
  • the metal alkoxide (A) is not particularly limited as long as the effect of the present invention can be obtained, but those having Si, Al, Ti, and Zr as M are preferably used, and among them, the most suitable barrier property is obtained. Therefore, those having Si and Al are particularly preferable.
  • Examples of the metal alkoxide (A) used in the present invention include tetramethoxysilane (Si (OCH 3 ) 4 ), tetraethoxysilane (hereinafter referred to as TEOS) (Si (OC 2 H 5 ) 4 ), and tetrapropoxysilane. (Si (OC 3 H 7 ) 4 ), tetrabutoxysilane (Si (OC 4 H 9 ) 4 ), normal propyl zirconeate, normal butyl zirconeate, tetraisopropyl titanate, tetranormal butyl titanate, butyl titanate dimer, tetraoctyl. Alkoxides such as titanate and triisopropoxyaluminum can be used.
  • the coating methods (A) and (B) of the present invention are not particularly limited, and are a spray method, a spin coat method, a dip method, a roll coat method, a blade coat method, a doctor roll method, a doctor blade method, and a curtain coat method.
  • Slit coating method, screen printing method, inkjet method, dispense method, die coating (die coating) method, direct gravure method, reverse gravure method, flexo method, knife coating method, dot coating method, etc. can. It was
  • the metal alkoxide (A) used in the present invention can form a gas barrier coating layer by hydrolysis and polycondensation reaction by the sol-gel method in the presence of various solvents such as water and organic solvents. ..
  • the thickness of the metal alkoxide (A) layer in the present invention is preferably in the range of 0.03 to 1.0 ⁇ m, and is particularly preferably in the range of 0.1 to 0.5 ⁇ m because of its excellent barrier properties and mechanical properties.
  • a silane coupling agent may be used together with the metal alkoxide (A) for the purpose of forming a stable metal alkoxide (A) -containing layer.
  • a silane coupling agent a known organic reactive group-containing organoalkoxysilane can be used, but an epoxy group-containing organoalkoxysilane is preferable because the formation of a coating film is good.
  • an epoxy group-containing organoalkoxysilane include ⁇ -glycidoxypropylmethyldiethoxysilane, ⁇ -glycidoxypropyltrimethoxysilane, and ⁇ - (3,4-epoxycyclohexyl) ethyltrimethoxysilane. And so on.
  • silane coupling agent one kind or two or more kinds may be used as long as the effect of the present invention can be obtained, and the silane coupling agent is 1 with respect to 100 parts by mass of the total amount of the metal alkoxide (A). It is preferable to use it within the range of about 20 parts by mass.
  • the metal compound (B) used in the present invention is not particularly limited as long as it is a metal that can be ionized during hot water treatment, and zinc, titanium, zirconium, chromium, manganese, iron, cobalt, nickel, copper, and the like. Transition metals such as tin; alkaline earth metals such as beryllium, magnesium, calcium; simple metals selected from aluminum, silicon, etc., oxides, hydroxides, chlorides, carbonates, acetates, carboxylates and chelate A body or the like can be used.
  • a compound selected from zinc, calcium, magnesium, aluminum and titanium is preferable, and zinc, calcium and magnesium are selected because excellent gas barrier properties and excellent retort resistance are good. Compounds are particularly preferred.
  • metal compound (B) used in the present invention as described above, a simple metal, an oxide, a hydroxide, a chloride, a carbonate, an acetate, a carboxylate, a chelate, or the like can be used.
  • oxides, hydroxides, chlorides, carbonates and acetates are particularly preferable because a good coating film can be formed, and oxides and hydroxides are most preferable.
  • metal compound (B) used in the present invention zinc oxide, calcium carbonate, magnesium oxide, aluminum oxide and titanium alkoxide are more preferable, and zinc oxide, calcium carbonate and magnesium oxide are most preferable because excellent gas barrier properties can be obtained.
  • the shape of the metal compound (B) used in the present invention is not particularly limited, but it is preferably in the form of particles.
  • the average particle size thereof is not particularly limited as long as the effect of the present invention can be obtained, but it can be observed by a laser diffraction / scattering method, a scanning electron microscope, or the like. It is preferable that any of the measured average particle diameters is 0.2 ⁇ m or less, more preferably 0.1 ⁇ m or less because suitable gas barrier properties and suitable transparency can be obtained, and the ionization of the metal is rapid and the solgel. It is most preferably 0.07 ⁇ m or less because the formation is carried out rapidly.
  • the method for forming the layer using the metal compound (B) of the present invention is not particularly limited, but for example, a coating liquid containing the metal compound (B) is prepared, and the coating liquid is applied and dried. It can be formed by.
  • the coating liquid containing the metal compound (B) contains various solvents such as water and organic solvents, dispersants, surfactants, stabilizers, thickeners, resins, and defoamers to the extent that the effects of the present invention can be obtained. , Wetting agent, hardening agent, blocking inhibitor, lubricant, preservative, inorganic filler and the like may be contained.
  • the base material used for the gas barrier laminate of the present invention is not particularly limited as long as the effect of the present invention can be obtained, and a resin film, paper, metal leaf, wood, or the like can be used depending on the desired application. It can be selected as appropriate.
  • PET polyethylene terephthalate
  • polystyrene film polystyrene film
  • polyamide film polyacrylonitrile film
  • polyethylene film LLDPE: linear low density polyethylene film
  • HDPE high density polyethylene film
  • CPP unstretched
  • a polyolefin film such as a polypropylene film (OPP: biaxially stretched polypropylene film), a polyvinyl alcohol film, an ethylene-vinyl alcohol copolymer film, and a resin film such as a cycloolefin copolyma film can be used.
  • OPP polypropylene film
  • a polyvinyl alcohol film such as a polyvinyl alcohol film
  • ethylene-vinyl alcohol copolymer film such as a cycloolefin copolyma film
  • resin film such as a cycloolefin copolyma film
  • a resin film When a resin film is used as the base material, it may be stretched or an unstretched film may be used.
  • the stretched films have the advantages of being easy to coat and easy to use because they are excellent in dimensional stability and rigidity, and even when an unstretched film is used, the configuration of the present invention greatly enhances the barrier function. The effect is obtained.
  • the stretching treatment method it is common to melt-extrude the resin by an extrusion film forming method or the like to form a sheet, and then perform simultaneous biaxial stretching or sequential biaxial stretching. Further, in the case of sequential biaxial stretching, it is common to first perform longitudinal stretching treatment and then lateral stretching. Specifically, a method of combining longitudinal stretching using a speed difference between rolls and transverse stretching using a tenter is often used.
  • a metal vapor deposition treatment using aluminum or the like, or a vapor deposition treatment using an inorganic oxide such as silicon dioxide (SiOx) or aluminum oxide (AlOx) can be performed.
  • a thin-film deposition treatment using silicon dioxide or aluminum oxide is preferable from the viewpoint that suitable barrier performance can be obtained, boil / retort resistance is excellent, and the texture and texture of the base material are not impaired.
  • the method for forming the thin-film deposition layer on the surface of the substrate is not particularly limited as long as the effect of the present invention can be obtained, and the inorganic oxide is vapor-deposited by a vacuum such as PVD method, sputtering method, or chemical.
  • a method of forming a film on the surface of the substrate can be selected by the vapor phase growth method (CVD method), and it is preferable to use the substrate treated by the vapor deposition method because the barrier property is improved.
  • the film thickness of the coating film formed on the surface of the substrate can be appropriately set within a range that does not impair the effect of the present invention, but is in the range of 5 to 500 nm because both flexibility and fastness can be achieved. It is preferably in the range of 10 to 300 nm, and more preferably in the range of 10 to 300 nm.
  • the gas barrier laminate of the present invention is characterized in that a metal alkoxide (A) -containing layer and a metal compound (B) -containing layer are formed on at least one surface of the base material, and the effects of the present invention can be obtained.
  • the layer (A) and the layer (B) may be formed in no particular order on the substrate within a certain range, and a plurality of layers (A) and (B) may be formed respectively.
  • the order in which the (A) layer and the (B) layer are formed on the base material is not particularly limited, but the (A) layer and the (B) layer are sequentially formed on one surface of the base material. This is preferable because a particularly good barrier effect can be obtained and a robust laminate can be obtained.
  • the gas barrier laminate of the present invention may be provided with an additional coating layer other than the (A) layer and the (B) layer on the outermost surface of the laminate as long as the effect of the present invention is not impaired.
  • an additional coating layer a barrier film containing a gas barrier layer such as polyvinyl alcohol, an ethylene / vinyl alcohol copolymer, or vinylidene chloride for the purpose of imparting a higher barrier function, and various vapor-deposited films.
  • a layer made of a metal foil such as aluminum foil can be used.
  • the additional coating layer include a metal vapor-deposited film such as aluminum and a metal oxide-deposited film such as silica and alumina.
  • the type of film may be a stretched film or an unstretched film.
  • the laminate of the present invention may further contain another film or base material in addition to the above-mentioned structure.
  • the other base material in addition to the above-mentioned stretched film, unstretched film, and transparent vapor-deposited film, a porous base material such as paper, wood, and leather described later can also be used.
  • a known paper base material can be used without particular limitation. Specifically, it is manufactured by a known paper machine using natural fibers for papermaking such as wood pulp, but the papermaking conditions are not particularly specified.
  • natural fibers for papermaking include wood pulps such as coniferous tree pulp and broadleaf tree pulp, non-wood pulps such as Manila hemp pulp, sisal hemp pulp, and flax pulp, and pulp obtained by chemically modifying these pulps.
  • wood pulps such as coniferous tree pulp and broadleaf tree pulp
  • non-wood pulps such as Manila hemp pulp, sisal hemp pulp, and flax pulp
  • pulp obtained by chemically modifying these pulps As the type of pulp, chemical pulp, gland pulp, chemi-grand pulp, thermomechanical pulp and the like obtained by a sulfate cooking method, an acidic / neutral / alkaline sulfite cooking method, a soda salt cooking method and the like can be used.
  • a print layer may be provided on the outer surface or the inner surface side of the paper layer, if necessary.
  • PET film / alumina oxide vapor deposition layer / metal alkoxide (A) -containing layer / metal compound (B) -containing layer / CPP (non-stretched polypropylene) film PET.
  • a film / an alumina oxide vapor deposition layer / a metal compound (B) -containing layer / a metal alkoxide (A) -containing layer / a CPP film is raised, and if necessary, a vapor deposition layer, an anchor layer, an adhesive layer, and a printing layer are further placed between these layers. Etc. may be provided.
  • a transparent vapor-deposited Ny film may be used instead of the aluminum-deposited PET film, the transparent-deposited PET film, or the like.
  • the gas barrier laminate of the present invention is characterized in that a metal alkoxide (A) -containing layer and a metal compound (B) -containing layer are formed on at least one surface of the base material as described above. After the (A) -containing layer and the (B) -containing layer are laminated, reactions such as ion cross-linking proceed between the layers to exhibit stronger barrier performance.
  • the laminate of the present invention can be used as a multi-layer package for the purpose of protecting foods, pharmaceuticals, etc.
  • its layer structure may change depending on the contents, usage environment, and usage pattern.
  • the package of the present invention may be appropriately provided with an easy-opening process or a resealable means.
  • the package of the present invention is obtained by using the laminate having the above-mentioned structure, laminating the surfaces of the sealant films of the laminate facing each other, and then heat-sealing the peripheral ends thereof to form a bag.
  • the laminated body of the present invention is bent or overlapped so that the inner layer surface (the surface of the sealant film) faces each other, and the peripheral end thereof is, for example, a side seal type or a two-way seal type.
  • the packaging material of the present invention can take various forms depending on the contents, the environment in which it is used, and the form in which it is used. Self-supporting packaging materials (standing pouches), etc. are also possible.
  • a heat sealing method a known method such as a bar seal, a rotary roll seal, a belt seal, an impulse seal, a high frequency seal, and an ultrasonic seal can be used. Since the effect of the present invention is preferably exhibited, the package of the present invention is preferably a package to be retort-treated.
  • the opening After filling the packaging material of the present invention with the contents from the opening, the opening is heat-sealed to manufacture a product using the packaging material of the present invention.
  • contents to be filled for example, as food, rice confectionery, bean confectionery, nuts, biscuits / cookies, wafer confectionery, marshmallow, pie, half-baked cake, candy, snack confectionery and other confectionery, bread, snack noodles, instant noodles.
  • Non-food items include tobacco, disposable body warmers, medicines such as infusion packs, liquid detergents for washing, liquid detergents for kitchens, liquid detergents for baths, liquid soaps for baths, liquid shampoos, liquid conditioners, cosmetics such as lotions and emulsions, and vacuum. It can also be used as a heat insulating material such as a heat insulating material and as various packaging materials such as a battery.
  • TEOS tetraethoxysilane
  • KBE-04 manufactured by Shin-Etsu Chemical Co., Ltd.
  • TEOS hydrolysis solution was prepared.
  • the PVA solution and the TEOS hydrolyzed solution were mixed so that the PVA / TEOS (SiO 2 equivalent) was 30/70 in terms of solid content mass ratio to prepare a coating liquid (a-1).
  • coating liquid a-2 containing metal alkoxide The coating liquid was prepared in the same manner except that aluminum triisopropoxide (Al (OC 3H 7 ) 3 , manufactured by Nacalai Tesque) was used instead of TEOS in the metal compound-containing coating agent a-1.
  • Al (OC 3H 7 ) 3 aluminum triisopropoxide (Al (OC 3H 7 ) 3 , manufactured by Nacalai Tesque) was used instead of TEOS in the metal compound-containing coating agent a-1.
  • TPT TEOS / tetraisopropyl titanate
  • Olga Tix TA-8 manufactured by Matsumoto Fine Chemical Co., Ltd.
  • the coating liquid was prepared in the same manner except that fine particle magnesium oxide (MgO) was used instead of the fine particle zinc oxide in the metal compound-containing coating agent b-1.
  • Fine particle magnesium oxide manufactured by Wako Pure Chemical Industries, Ltd., average particle size: 0.01 ⁇ m
  • the average particle size was 0.1 ⁇ m.
  • the coating liquid was prepared in the same manner except that calcium carbonate (CaCO3) was used instead of the fine particle zinc oxide of the metal compound-containing coating agent b-1.
  • Calcium carbonate was pulverized in a mortar made by Menou using a reagent manufactured by Wako Pure Chemical Industries, Ltd., dispersed in ethanol using an ultrasonic homogenizer, and a suspension having a CaCO 3 content of 30% was prepared and used. ..
  • the average particle size was 0.1 ⁇ m.
  • the coating liquid was prepared in the same manner except that zinc acetate (Zn (AcO) 2 ) was used instead of the fine particle zinc oxide of the metal compound-containing coating agent b-1.
  • Zinc acetate used was manufactured by Wako Pure Chemical Industries, Ltd.
  • the coating liquid was prepared in the same manner except that fine particle zinc oxide (FINEX50, manufactured by Sakai Chemical Industry Co., Ltd., average primary particle diameter 60 nm) having a different particle size was used instead of the fine particle zinc oxide of the metal compound-containing coating agent b-1. ..
  • the average particle size was 0.6 ⁇ m.
  • Example 1 A metal alkoxide-containing coating agent a-1 is coated on the vapor-deposited layer of an alumina oxide-deposited PET film (Barrierox 1011HG, manufactured by Toray Film Processing Co., Ltd.) with a bar coater, and 1 in a hot air dryer set at 120 ° C. It was dried for a minute to form a metal alkoxide-containing layer A-1 having a dry film thickness of about 0.3 ⁇ m. Then, the metal compound-containing coating liquid b-1 is coated on the layer A-1 with a bar coater, dried in a dryer set at 80 ° C. for 1 minute, and the metal compound-containing layer B having a dry film thickness of about 0.3 ⁇ m. -1 was formed.
  • an alumina oxide-deposited PET film Barrierox 1011HG, manufactured by Toray Film Processing Co., Ltd.
  • Example 2 The laminate [PET / alumina oxide vapor deposition layer / metal alkoxide-containing layer A] is the same as in Example 1 except that the metal compound-containing coating liquids b-2 to 6 are used instead of the metal compound-containing coating liquid b-1. -1 / Metal compound-containing layer B-2 to 6 / Adhesive / CPP] was produced.
  • Example 7 The laminate [PET / alumina oxide vapor deposition layer / metal alkoxide-containing layer A] is the same as in Example 1 except that the metal alkoxide-containing coating liquids a-2 to 3 are used instead of the metal alkoxide-containing coating liquid a-1. -2 to 3 / metal compound-containing layer B-1 / adhesive / CPP] was produced.
  • Example 9 A laminate [OPP / Alumina oxide-deposited layer / Metal alkoxide-containing layer A-1 / Metal compound-containing layer B in the same manner as in Example 1 except that an Alumina oxide-deposited OPP film was used instead of the Alumina oxide-deposited PET film. -1 / Adhesive / CPP] was manufactured.
  • Alumina oxide-deposited OPP film is a biaxially stretched polypropylene film (FOR, manufactured by Futamura Chemical Co., Ltd., thickness 20 ⁇ m), an acrylic coating agent (GAC-013S, manufactured by DIC) and a polyisocyanate-based curing agent (KR-90, DIC).
  • the anchor coating liquid which can be blended so that the mixing ratio is 5: 1, is applied and dried by the gravure coating method so that the dry film thickness is about 0.05 ⁇ m, and then a vacuum vapor deposition apparatus by an electron beam heating method.
  • metal aluminum was vapor-deposited and oxygen gas was introduced to form a thin-film vapor-deposited thin film layer made of aluminum oxide having a thickness of 20 nm on the anchor coat layer.
  • Example 10 A laminate [PET / aluminum-deposited layer / metal alkoxide-containing layer A] in the same manner as in Example 1 except that an aluminum-deposited PET film (VM-PET1310, manufactured by Toray Film Processing Co., Ltd.) was used instead of the alumina oxide-deposited PET film. -1 / Metal compound-containing layer B-1 / Adhesive / CPP] was produced.
  • Example 11 A laminate [PET / silica-film-deposited layer / metal alkoxide-containing layer A-] in the same manner as in Example 1 except that a silica-deposited PET film (Techbarrier L, manufactured by Mitsubishi Chemical Co., Ltd.) was used instead of the alumina oxide-deposited PET film. 1 / Metal compound-containing layer B-1 / Adhesive / CPP] was produced.
  • Example 12 A laminate [PET / metal alkoxide-containing layer A-1 / metal compound-containing layer B-1] in the same manner as in Example 1 except that a PET film (E5102, manufactured by Toyobo) was used instead of the alumina oxide-deposited PET film. / Adhesive / CPP] was manufactured.
  • a PET film E5102, manufactured by Toyobo
  • Adhesive / CPP Adhesive / CPP
  • Example 13 The laminate [PET / alumina oxide vapor deposition layer / metal compound-containing layer B-] is the same as in Example 1 except that the coating order of the metal compound-containing coating liquid b-1 and the metal alkoxide-containing coating liquid a-1 is reversed. 1 / Metal alkoxide-containing layer A-1 / Adhesive / CPP] was produced.
  • Example 14 In the coating of the metal alkoxide-containing coating liquid a-1, the laminate [PET / alumina oxide vapor-deposited layer / metal alkoxide-containing layer A-1 / metal is the same as in Example 1 except that the dry film thickness is 0.1 ⁇ m. Compound-containing layer B-1 / adhesive / CPP] was produced.
  • Example 15 In the coating of the metal alkoxide-containing coating liquid a-1, the laminate [PET / alumina oxide vapor-deposited layer / metal alkoxide-containing layer A-1 / metal is the same as in Example 1 except that the dry film thickness is 1.0 ⁇ m. Compound-containing layer B-1 / adhesive / CPP] was produced.
  • Example 16 In the coating of the metal compound-containing coating liquid b-1, the laminate [PET / alumina oxide vapor-deposited layer / metal alkoxide-containing layer A-1 / metal is the same as in Example 1 except that the dry film thickness is 0.1 ⁇ m. Compound-containing layer B-1 / adhesive / CPP] was produced.
  • Example 17 In the coating of the metal compound-containing coating liquid b-1, the laminate [PET / alumina oxide vapor-deposited layer / metal alkoxide-containing layer A-1 / metal is the same as in Example 1 except that the dry film thickness is 1.0 ⁇ m. Compound-containing layer B-1 / adhesive / CPP] was produced.
  • Example 2 A metal compound-free coating agent b-7 was used instead of the metal compound-containing coating agent b-1, and the laminate [PET / alumina oxide vapor deposition layer / metal alkoxide-containing layer A-1 / metal compound was used in the same manner as in Example 1. Free layer B-7 / adhesive / CPP] was obtained.
  • Example 4 The laminate [PET / alumina oxide vapor deposition layer / metal alkoxide-free layer A] is the same as in Example 1 except that the metal alkoxide-free coating liquid ieri-4 is used instead of the metal alkoxide-containing coating liquid a-1. -4 / Metal compound-containing layer B-1 / Adhesive / CPP] was produced.
  • Example 5 In the coating of the metal alkoxide-containing coating liquid a-1, the laminate [PET / alumina oxide vapor-deposited layer / metal alkoxide-containing layer A-1 / metal is the same as in Example 1 except that the dry film thickness is 0.05 ⁇ m. Compound-containing layer B-1 / adhesive / CPP] was produced.
  • Example 6 In the coating of the metal alkoxide-containing coating liquid a-1, the laminate [PET / alumina oxide vapor-deposited layer / metal alkoxide-containing layer A-1 / metal is the same as in Example 1 except that the dry film thickness is 2.0 ⁇ m. Compound-containing layer B-1 / adhesive / CPP] was produced.
  • Example 7 In the coating of the metal compound-containing coating liquid b-1, the laminate [PET / alumina oxide vapor-deposited layer / metal alkoxide-containing layer A-1 / metal is the same as in Example 1 except that the dry film thickness is 0.05 ⁇ m. Compound-containing layer B-1 / adhesive / CPP] was produced.
  • Example 8 In the coating of the metal compound-containing coating liquid b-1, the laminate [PET / alumina oxide vapor-deposited layer / metal alkoxide-containing layer A-1 / metal is the same as in Example 1 except that the dry film thickness is 2.0 ⁇ m. Compound-containing layer B-1 / adhesive / CPP] was produced.
  • Example 9 A laminate [PET / metal alkoxide-containing layer A-1 / adhesive] is used in the same manner as in Example 1 except that a PET film is used instead of the alumina oxide-deposited PET film and the metal compound-containing layer B-1 is omitted. / CPP] was manufactured.
  • Oxygen barrier property Adjust the aging-finished laminate to a size of 10 cm x 10 cm, use OX-TRAN2 / 21 (Made by Mocon: oxygen permeability measuring device), and follow JIS-K7126 (isopressure method) at 23 ° C. 0% RH. Oxygen permeability was measured under the atmosphere of (unit: cc / m2 ⁇ day ⁇ atm). Note that RH represents humidity.
  • ⁇ Evaluation> (Oxygen barrier property after retort treatment) Using the laminated body after aging, a pouch having a size of 210 mm in length ⁇ 150 mm in width having three sides as a sealing portion was prepared and filled with water as a content. Then, the retort sterilization treatment was performed at 121 ° C. for 30 minutes, and the oxygen permeability after the retort sterilization treatment was measured according to the above-mentioned oxygen barrier property measuring method.

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Abstract

La présente invention aborde le problème consistant à fournir : un stratifié barrière aux gaz qui présente d'excellentes propriétés de barrière aux gaz et une excellente résistance au traitement en autoclave (ci-après désignée par la résistance à l'autoclave) ; et un matériau d'emballage qui utilise ledit stratifié barrière aux gaz. Les inventeurs ont résolu ce problème par la découverte selon laquelle d'excellentes propriétés de barrière aux gaz et une excellente résistance à l'autoclave peuvent être obtenues par un stratifié barrière aux gaz caractérisé en ce qu'une couche contenant un alcoxyde métallique (A) et une couche contenant un composé métallique (B) sont formées sur une ou plusieurs surfaces d'un substrat, et par 'un matériau d'emballage qui utilise ledit stratifié.
PCT/JP2021/046418 2020-12-22 2021-12-16 Stratifié barrière aux gaz et matériau d'emballage WO2022138417A1 (fr)

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JP2022520245A JP7272508B2 (ja) 2020-12-22 2021-12-16 ガスバリア性積層体及び包装材料

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024090318A1 (fr) * 2022-10-27 2024-05-02 Dic株式会社 Stratifié étanche aux gaz et emballage

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2019209645A (ja) * 2018-06-07 2019-12-12 大日本印刷株式会社 バリアフィルムおよび包装材料
JP2020040254A (ja) * 2018-09-07 2020-03-19 大日本印刷株式会社 包装材料用積層体および包装材料
JP2020114631A (ja) * 2019-01-17 2020-07-30 凸版印刷株式会社 ガスバリア積層体及びそれを備える包装体

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009237509A (ja) * 2008-03-28 2009-10-15 Kanazawa Medical Univ 眼鏡用レンズ
JP7439394B2 (ja) * 2019-05-27 2024-02-28 Ｔｏｐｐａｎホールディングス株式会社 ガスバリア積層体

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2019209645A (ja) * 2018-06-07 2019-12-12 大日本印刷株式会社 バリアフィルムおよび包装材料
JP2020040254A (ja) * 2018-09-07 2020-03-19 大日本印刷株式会社 包装材料用積層体および包装材料
JP2020114631A (ja) * 2019-01-17 2020-07-30 凸版印刷株式会社 ガスバリア積層体及びそれを備える包装体

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024090318A1 (fr) * 2022-10-27 2024-05-02 Dic株式会社 Stratifié étanche aux gaz et emballage

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TW202233411A (zh) 2022-09-01
JP7272508B2 (ja) 2023-05-12
JPWO2022138417A1 (fr) 2022-06-30

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