WO2020179771A1 - 包装容器およびそれを用いた蒸気殺菌製品 - Google Patents
包装容器およびそれを用いた蒸気殺菌製品 Download PDFInfo
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- WO2020179771A1 WO2020179771A1 PCT/JP2020/008842 JP2020008842W WO2020179771A1 WO 2020179771 A1 WO2020179771 A1 WO 2020179771A1 JP 2020008842 W JP2020008842 W JP 2020008842W WO 2020179771 A1 WO2020179771 A1 WO 2020179771A1
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- Prior art keywords
- layer
- steam
- container body
- layer structure
- oxygen barrier
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- 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
- B65D81/18—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 providing specific environment for contents, e.g. temperature above or below ambient
- B65D81/20—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 providing specific environment for contents, e.g. temperature above or below ambient under vacuum or superatmospheric pressure, or in a special atmosphere, e.g. of inert gas
- B65D81/2069—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 providing specific environment for contents, e.g. temperature above or below ambient under vacuum or superatmospheric pressure, or in a special atmosphere, e.g. of inert gas in a special atmosphere
- B65D81/2076—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 providing specific environment for contents, e.g. temperature above or below ambient under vacuum or superatmospheric pressure, or in a special atmosphere, e.g. of inert gas in a special atmosphere in an at least partially rigid container
Definitions
- the present invention relates to a packaging container and a steam sterilized product using the same, and more particularly to a packaging container capable of packaging foods such as prepared foods and a steam sterilized product using the same.
- Foods called daily prepared foods or daily foods are foods cooked and processed at food factories, etc., which are stored in molded containers and placed in the containers. It is distributed with a top sheet and a cover lid placed.
- the food is placed in a packaging container and stored in an autoclave, and after the autoclave is evacuated, high-temperature and high-pressure steam is introduced into the container body to sterilize the food with high-temperature and high-pressure steam.
- a method has been proposed in which the kettle is decompressed to cool the food, the packaging container taken out from the sterilization kettle is filled with juice or water, and then the opening is sealed with a lid to sterilize the retort (Patent Document 1).
- Patent Document 1 the food contained in the packaging container can be sterilized as it is without being transferred to the retainer, and after sterilization, it can be distributed as it is by simply covering the opening of the packaging container with a lid.
- the present invention is intended to solve the above problems, and its purpose is to enable uniform sterilization by high-temperature and high-pressure steam, and to maintain the sterilized state of the contents for a long period of time.
- EN Provided are a packaging container and a steam sterilization product using the same.
- a packaging container including a container body (A) including an opening and an inner surface capable of accommodating the contents, and a lid material (B) covering the opening of the container body (A).
- the container body (A) is provided with a steam flow section on the inner surface through which steam can flow between the contents and the inner surface, and includes at least one oxygen barrier layer (a).
- It is composed of a structure (A'), and the lid material (B) is formed on a layer structure (b-1) having at least two perforations and an outer surface of the layer structure (b-1). It comprises a layered structure (b-2) that is arranged and blocks the perforation, and at least one of the layered structure (b-1) and the layered structure (b-2) is an oxygen barrier layer.
- a packaging container comprising (b); [2]
- the oxygen barrier layer (b) in the lid material (B) is a composite structure containing an ethylene-vinyl alcohol copolymer, phosphorus and a polyvalent metal element, processed starch, polyamide, polyester, polyvinylidene chloride, and the like.
- the packaging container of [1] which comprises at least one selected from the group consisting of acrylonitrile copolymers, polyvinylidene fluoride, polyvinylidene fluoride, polyvinyl alcohol, inorganic layered compounds, inorganic vapor deposition layers, and metal foils; [3] The packaging container of [1] or [2], wherein the water contact angle measured in accordance with JIS R3257 on the inner surface of the lid material (B) is 70 ° or less; [4] The packaging container according to any one of [1] to [3], wherein the perforations of the layer structure (b-1) in the lid material (B) have a diameter of 1 mm or more and 20 mm or less; [5] Any one of [1] to [4], wherein the lid material (B) includes an adhesive layer between the layer structure (b-1) and the layer structure (b-2).
- the oxygen barrier layer (a) in the container body (A) is a composite structure containing an ethylene-vinyl alcohol copolymer, phosphorus and a polyvalent metal element, processed starch, polyamide, polyester, polyvinylidene chloride, and the like. [1] to [1] to contain at least one compound selected from the group consisting of acrylonitrile copolymers, polyvinylidene fluoride, polyvinylidene fluoride, polyvinyl alcohol, inorganic layered compounds, inorganic vapor deposition layers, and metal foils.
- the oxygen barrier layer (b) is an ethylene-vinyl alcohol copolymer, a composite structure containing phosphorus and a polyvalent metal element, processed starch, polyamide, polyester, polyvinylidene chloride, acrylonitrile copolymer, and polyfluoride.
- the layer structure according to any one of [9] to [11], which comprises at least one selected from the group consisting of vinylidene, polychlorotrifluoroethylene, polyvinyl alcohol, an inorganic layered compound, an inorganic vapor-deposited layer, and a metal foil.
- B' A layered structure (b-1) comprising at least two perforations in the layered structure (B′) according to any one of [9] to [12];
- the oxygen barrier layer (b) is an ethylene-vinyl alcohol copolymer, a composite structure containing phosphorus and a polyvalent metal element, processed starch, polyamide, polyester, polyvinylidene chloride, acrylonitrile copolymer, and polyfluoride.
- the steam sterilization product in which the contents are contained in the container, and the container body (A) and the lid member (B) constituting the packaging container are sealed; [16] The steam sterilization product according to [15], wherein the oxygen concentration of the region surrounded by the container body (A) and the lid member (B) is 5% by volume or less; [17] Steam sterilization according to [15] or [16], wherein the carbon dioxide concentration in the region surrounded by the container body (A) and the lid material (B) is 0.5 vol% or more and 40 vol% or less.
- the contained contents can be sterilized more uniformly, and the sterilized state of the contents can be maintained for a long period of time. As a result, it is possible to further delay the deterioration and putrefaction of the contents and provide consumers with peace of mind associated with the quality of the contents.
- FIG. 1 is a cross-sectional view of the packaging container, in which FIG. 1A is a vertical sectional view of the packaging container, and FIG. 1B is a partially enlarged sectional view of the packaging container in the vertical direction. It is a longitudinal direction sectional view for explaining other examples of the packaging container of the present invention.
- FIG. 1 It is a top view of the container body (A) for explaining another example of the possible container body (A), (c) is another example of the container body (A) which can constitute the packaging container of this invention. It is a top view of the container body (A) for demonstrating. It is a schematic diagram for demonstrating an example of the manufacturing method of the steam sterilization product of this invention. It is a schematic diagram for demonstrating the procedure of sterilizing the contents F in the container body (A) which can be adopted in the manufacturing method of the steam sterilization product of this invention after being exposed to the reduced pressure environment, and FIG. It is a figure showing the state where deaeration from the container body (A) is being performed through the perforations 132 of the layered structure (b-1) under a reduced pressure environment. It is a figure which shows the state which steam is introduced into the container body (A) through the perforation 132 of a layer structure (b-1). It is a schematic diagram for demonstrating another example of the manufacturing method of the steam sterilization product of this invention.
- the packaging container 100 of the present invention includes a container body (A) 110 and a lid material (B) 130.
- the lid material (B) 130 is arranged above the container body (A) 110, covers the opening (not shown), and is in close contact with the outer peripheral portion of the opening. As a result, ventilation is blocked at the contact portion between the lid material (B) 130 and the container body (A) 110.
- the lid material (B) 130 includes a layered structure (b-1) 134 provided with at least two perforations 132, and seals the perforations 132.
- the layered structure (b-2) 136 is arranged in.
- FIG. 2 is a cross-sectional view of the container body (A) 110 constituting the packaging container shown in FIG.
- the container body (A) 110 has an inner surface 114 capable of containing a desired content through an opening 112 that opens upward.
- the inner surface 114 is composed of a container bottom portion (a1) 118 and a container side wall portion (a2) 116 extending upward from the peripheral edge of the container bottom portion (a1) 118.
- the container side wall portion (a2) 116 constituting the inner surface 114 of the container body (A) 110 is inclined from the opening 112 toward the container bottom portion (a1) 118.
- the present invention is not necessarily limited to such a form.
- the container body (A) 110 may be provided with a flange portion 120 along the periphery of the opening 112.
- the flange portion 120 has a peripheral edge portion of the lid member (B) 130 as shown in FIG. 1A and a portion that can be adhered to the peripheral portion using a known means such as heat sealing or an adhesive.
- the flange portion 120 may be provided with a bulging portion 121 bulging in the opening direction, for example, continuously along the flange portion 120.
- the bulging portion 121 has a ridge line forming the bulging portion 121 that is sharply bent at at least one of the four corners forming the container body (A) 110, for example. May have a tip portion 123 defined by Since stress concentrates at such a pointed portion 123, the lid member (B) 130 that is in close contact with the container body (A) 110 can be peeled off from the container body (A) 110 with less force.
- the container body (A) 110 is provided with the vapor circulation part 122 on the inner surface 114.
- the steam flow unit 122 communicates with the opening 112 of the container body (A) 110.
- steam can flow between the contents (not shown) and the inner surface 114.
- a plurality of vapor circulation units 122 are provided on the container bottom (a1) 118 of the container body (A) 110.
- the container bottom portion (a1) 118 of the container body (A) 110 shown in FIG. 2A is provided with a plurality of protrusions 124 arranged at substantially even or unevenly spaced intervals.
- the steam flow portion 122 is formed between one protrusion 124 and another protrusion 124 adjacent to the protrusion 124.
- the protrusions 124 support the contents contained in the container body (A) 110, for example, in the form of point contact or line contact, and the contact area between the protrusions 124 and the contents is reduced as much as possible. Is designed to.
- the plurality of vapor circulation portions 122 are arranged at substantially equal intervals in the container bottom portion (a1) 118 of the container body (A) 110.
- the container body (A) 110 having such a configuration, when the contents (eg, food) contained in the container body (A) 110 are sterilized by steam, the steam formed in the container bottom (a1) 118 More steam can flow through the flow passage 122 not only from the top and sides of the contents, but also from the bottom of the contents. This allows for more even and more efficient sterilization of the contents with steam.
- the height of the protrusion 124 is not necessarily limited, but is the most on the innermost bottom surface 114 of the container bottom portion (a1) 118 (that is, the innermost surface 114 of the container body (A) 110). Based on the lower height), it is, for example, 2 mm or more, 3 mm or more, or 4 mm or more.
- the height of the protruding portion 124 is not necessarily limited, but is, for example, 15 mm or less, 13 mm or less, or 10 mm or less with respect to the innermost bottom surface of the container bottom (a1) 118. When the height of the protrusion 124 is within such a range, steam can be more easily flowed into the steam flow passage 122, and steam sterilization on the lower surface side of the contents can be performed more effectively.
- the height of the protruding portion 124 is 10% of the depth L of the container body (A) 110 (that is, the distance from the opening 112 of the container body (A) 110 to the lowermost portion of the inner surface 114 in the vertical direction). It is preferably 40% or more and 40% or less. According to this configuration, the cross-sectional area of the steam flow passage 122 (that is, a straight line connecting the apex of one protrusion 124 in FIG. 2A and the apex of another protrusion 124 adjacent thereto and these two protrusions). (Corresponding to the area of the figure formed by the ridgelines between 124) is increased, so that the steam can more easily flow into the steam flow passage 122, and the steam sterilization of the lower surface side of the contents can be performed more effectively. You can
- the layer structure (b-1) 134 and the layer structure (b) are relative to the container body (A) 110 (specifically, the flange portion 120).
- the substantially flat lid member (B) composed of 136 is in close contact, but in the present invention, the container body (A) and the lid member (B) are only combinations of such forms. Not limited to.
- the packaging container of the present invention may be composed of a container body (A) and a lid member (B) as shown in FIGS. 3(a) to 3(d).
- the packaging container 100a shown in FIG. 3A has a container body (A) 110a having a flange portion 120a, a layer structure (b-1) 134a having a lid side flange portion 131a, and a layer structure (b-2). ) 136 and a lid material 130a.
- the packaging container 100a has a form in which the lid side flange portion 131a of the lid material 130a covers and fits the flange portion 120a of the container body (A) 110a (outer fitting type). Have.
- the contact portion between the lid side flange portion 131a and the flange portion 120a is brought into close contact with each other by using a well-known means such as a heat seal or an adhesive.
- the packaging container 100b shown in FIG. 3B includes a container body (A) 110b and a lid member 130b composed of a layer structure (b-1) 134b and a layer structure (b-2) 136. ..
- the container body (A) 110b has a flange portion 120b including a convex portion protruding upward, and the layer structure (b-1) 134b has a lid side flange portion 131b including a concave portion.
- the concave portion of the lid-side flange portion 131b of the lid material 130b accommodates and fits the convex portion of the flange portion 120b of the container body (A) 110b.
- the contact portion between the lid side flange portion 131b and the flange portion 120b is brought into close contact with each other by using a well-known means such as a heat seal or an adhesive.
- a packaging container 100c shown in FIG. 3C includes a container body (A) 110c having a flange portion 120c, a layer structure (b-1) 134c having a lid side flange portion 131c, and a layer structure (b-2). ) 136 and a lid member 130c.
- the flange portion 120c of the container body (A) 110c covers and fits the lid side flange portion 131c of the lid member 130c (internal fitting type).
- the contact portion between the lid side flange portion 131c and the flange portion 120c is brought into close contact with each other by using a well-known means such as heat seal and adhesive.
- the packaging container 100d shown in FIG. 3D includes a container body (A) 110d having a flange portion 120d, a layer structure (b-1) 134d having a lid-side flange portion 131d, and a layer structure (b-2). ) 136 and the lid material 130d.
- the packaging container 100d has a form (placing type) in which the lid-side flange portion 131d of the lid material 130d covers and overlaps the flange portion 120d of the container body (A) 110d.
- the contact portion between the lid side flange portion 131d and the flange portion 120d is brought into close contact with each other by using a well-known means such as heat seal and adhesive.
- FIG. 4(a) is a top view of the container body (A) shown in FIG. 2(a).
- the protrusions 124 are arranged substantially evenly on the bottom of the container (a1) 118, and a plurality of protrusions 124 extending straight in each of the vertical and horizontal directions between the protrusions 124.
- a steam flow passage 122 is provided.
- the form of the container body (A) 110 is not limited to this, and may have, for example, the forms shown in FIGS. 4 (b) and 4 (c). ..
- the container body (A) 110′ has a plurality of semi-cylindrical protrusions in the same direction (in FIG. 4(b), in the container bottom portion (a1) 118. It may be arranged in the vertical direction) and have a protrusion 124'connecting the protrusions 124'(in addition, in FIG. 4B, the portion common to FIG. 4A is the same. The reference number is attached).
- a plurality of vapor flow passages 122' are formed side by side in the same direction (vertical direction in FIG. 4B) between the semi-cylindrical protrusions that form the protrusions 124'.
- the protrusion 124' is the container body (A) in which the protrusion 124 supports the contents in a point contact manner as shown in FIG. 4 (a).
- the contents can be supported in a line contact manner.
- the contact between the contents and the container body (A) 110' is reduced as much as possible. It is possible to perform steam sterilization on the lower surface side of the contents.
- the container body (A) 110 "has a plurality of semi-cylindrical protrusions 124" at the bottom of the container (a1) 118, and the number of the protrusions 124 ". 4 (3 in FIG. 4(c)) form a set of blocks 126 that are aligned so as to be substantially parallel to each other, and the blocks 126 are vertically arranged as shown in FIG. 4(c). It may be arranged by rotating by 90° compared to other blocks arranged in the horizontal and horizontal directions (note that in FIG. 4C, a portion common to FIG. In this case, there is a steam flow passage 122 "between the protrusion 124" in one block 126 and the other protrusion 124 "adjacent to the protrusion 124". It is formed side by side in the same direction inside.
- the protrusion 124 ′′ has a container body (A) shown in FIG. 4A in which the protrusion 124 supports the contents in a point-contact manner. ) 110, the contents can be supported in a line contact manner.
- the vapor flow passages 122′′ are provided in at least two directions (vertical direction and horizontal direction in FIG. 4C). As a result, for example, even in the case where the content is a very soft food, the contact between the content and the container main body (A) 110′′ is reduced as much as possible, and the content of the bottom 118 from a plurality of directions is reduced.
- the container body (A) 110 is composed of a multilayer structure (A′) in which a plurality of layers are laminated.
- the multilayer structure (A′) includes the oxygen barrier layer (a).
- the number of layers of the oxygen barrier layer (a) in the multilayer structure (A′) may be two or more from the viewpoint of further improving the oxygen barrier property, and the material forming each layer may be the same or different. May be.
- the oxygen barrier layer (a) is a layer having a function of preventing gas permeation. For example, under the conditions of 20 ° C. and 65% RH, JIS-K7126-2 (2006), Part 2 (isobaric method). Is a layer having an oxygen permeability of 100 cc ⁇ 20 ⁇ m/(m 2 ⁇ day ⁇ atm) or less, preferably 50 cc ⁇ 20 ⁇ m/(m 2 ⁇ day ⁇ atm) or less, more preferably 10 cc ⁇ 20 ⁇ m It is a layer of /(m 2 ⁇ day ⁇ atm) or less.
- the oxygen permeability of "10 cc / 20 ⁇ m / (m 2 / day / atm)" means that the barrier material of 20 ⁇ m (meaning the case where the oxygen barrier layer (a) is composed alone) is under 1 atm of oxygen. It means that the amount of oxygen per day per day is 10 cc.
- the oxygen barrier layer (a) is, for example, an ethylene-vinyl alcohol copolymer (hereinafter, also referred to as “EVOH”), a composite structure containing phosphorus and a polyvalent metal element, modified starch, polyamide, polyester, polychlorinated material. It includes a gas barrier material such as vinylidene, an acrylonitrile copolymer, polyvinylidene fluoride, polychlorotrifluoroethylene, polyvinyl alcohol, an inorganic layered compound, an inorganic vapor deposition layer, and a metal foil.
- EVOH ethylene-vinyl alcohol copolymer
- the oxygen barrier layer (a) preferably contains EVOH, polyamide, and modified starch, or a combination thereof, because it has good oxygen barrier properties and melt moldability, and has particularly excellent melt moldability. It is more preferable to contain EVOH for the reason that it has.
- EVOH ethylene-vinyl ester copolymer
- the ethylene-vinyl ester copolymer can be produced and saponified by a known method.
- vinyl esters that can be used in the method include fatty acid vinyl esters such as vinyl acetate, vinyl formate, vinyl propionate, vinyl pivalate, and vinyl versatate.
- the ethylene unit content of EVOH is preferably, for example, 20 mol% or more, 22 mol% or more, or 24 mol% or more.
- the ethylene unit content of EVOH is preferably, for example, 60 mol% or less, 55 mol% or less, or 50 mol% or less.
- the ethylene unit content in such EVOH can be measured by, for example, a nuclear magnetic resonance (NMR) method.
- the lower limit of the degree of saponification of the vinyl ester component of EVOH is preferably, for example, 80 mol% or more, 90 mol% or more, or 99 mol% or more.
- the degree of saponification is 80 mol% or more, for example, the oxygen barrier property of the oxygen barrier layer (a) can be enhanced.
- the upper limit of the degree of saponification of the vinyl ester component of EVOH may be, for example, 100% or less and 99.99% or less.
- the degree of saponification of EVOH can be calculated by measuring the peak area of hydrogen atoms contained in the vinyl ester structure and the peak area of hydrogen atoms contained in the vinyl alcohol structure by 1 H-NMR measurement. When the degree of saponification of EVOH is within the above range, good oxygen barrier properties can be provided to the oxygen barrier layer (a) that constitutes the container body (A).
- EVOH is also to the extent that the object of the present invention is not impaired. It may have units derived from ethylene and other monomers other than vinyl ester and its saponified product.
- the upper limit of the content of the other monomeric units relative to the total structural units of EVOH is, for example, 30 mol% or less, 20 mol% or less, 10 mol% or less. Or less or less than 5 mol%.
- the lower limit of its content is, for example, 0.05 mol% or more or 0.1 mol% or more.
- EVOH may have include, for example, alkene such as propylene, butylene, pentene and hexene; 3-acyloxy-1-propene, 3-acyloxy-1-butene, 4-acyloxy- 1-butene, 3,4-diasiloxy-1-butene, 3-acyloxy-4-methyl-1-butene, 4-acyloxy-1-butene, 3,4-diasiloxy-1-butene, 3-acyloxy-4- Methyl-1-butene, 4-acyloxy-2-methyl-1-butene, 4-acyloxy-3-methyl-1-butene, 3,4-diasiloxy-2-methyl-1-butene, 4-acyloxy-1- Pentene, 5-acyloxy-1-pentene, 4,5-diacyloxy-1-pentene, 4-acyloxy-1-hexene, 5-acyloxy-1-hexene, 6-acyloxy-1-hexene, 5,6-diacyl
- vinylsilane compounds such as silane, vinyltri( ⁇ -methoxy-ethoxy)silane and ⁇ -methacryloxypropylmethoxysilane; alkyl vinyl ethers, vinyl ketones, N-vinylpyrrolidone, vinyl chloride, vinylidene chloride and the like.
- the EVOH may be an EVOH modified by a method such as urethanization, acetalization, cyanoethylation, or oxyalkyleneization.
- the EVOH modified in this way tends to improve the melt moldability of the oxygen barrier layer (a).
- EVOH As the EVOH, two or more types of EVOH having different ethylene unit content, degree of saponification, copolymer component, presence / absence of modification, type of modification, etc. may be used in combination.
- EVOH can be obtained by a known method such as a massive polymerization method, a solution polymerization method, a suspension polymerization method, or an emulsion polymerization method.
- a massive or solution polymerization method is used in which polymerization can proceed in a solvent-free solution or in a solution such as alcohol.
- the solvent used in the solution polymerization method is not particularly limited, but is, for example, an alcohol, preferably a lower alcohol such as methanol, ethanol, or propanol.
- the amount of the solvent used in the polymerization reaction solution may be selected in consideration of the viscosity average degree of polymerization of the target EVOH and the chain transfer of the solvent, and the mass ratio of the solvent contained in the reaction solution to all the monomers (solvent /Total monomer) is, for example, 0.01 to 10, preferably 0.05 to 3.
- Examples of the catalyst used for the above polymerization include 2,2-azobisisobutyronitrile, 2,2-azobis- (2,4-dimethylvaleronitrile), and 2,2-azobis- (4-methoxy).
- Azo-based initiators such as -2,4-dimethylvaleronitrile) and 2,2-azobis- (2-cyclopropylpropionitrile); isobutyryl peroxide, cumylperoxyneodecanoate, diisopropylperoxycarbonate,
- Examples thereof include organic peroxide-based initiators such as di-n-propylperoxydicarbonate, t-butylperoxyneodecanoate, lauroyl peroxide, benzoyl peroxide, and t-butyl hydroperoxide.
- the polymerization temperature is preferably 20°C to 90°C, more preferably 40°C to 70°C.
- the polymerization time is preferably 2 hours to 15 hours, more preferably 3 hours to 11 hours.
- the polymerization rate is preferably 10% to 90%, more preferably 30% to 80% with respect to the charged vinyl ester.
- the resin content in the solution after polymerization is preferably 5% to 85%, more preferably 20% to 70%.
- a polymerization inhibitor may be added as necessary after polymerization for a predetermined time or after reaching a predetermined polymerization rate, and unreacted ethylene gas may be evaporated and removed to remove unreacted vinyl ester. ..
- an alkali catalyst is added to the copolymer solution to saponify the copolymer.
- the method of saponification either a continuous method or a batch method may be adopted.
- the alkali catalyst that can be added include sodium hydroxide, potassium hydroxide, alkali metal alcoholate and the like.
- EVOH after the saponification reaction contains an alkaline catalyst, by-products such as sodium acetate and potassium acetate, and other impurities. Therefore, it is preferable to remove them by performing neutralization or washing as necessary.
- water for example, ion-exchanged water
- predetermined ions for example, metal ions and chloride ions
- by-products such as sodium acetate and potassium acetate are used. The salts may not be completely removed and some may remain.
- EVOH is another thermoplastic resin, metal salt, acid, boron compound, plasticizer, filler, blocking inhibitor, lubricant, stabilizer, surfactant, colorant, ultraviolet absorber, antistatic agent, desiccant, cross-linking agent. , Reinforcing materials such as various fibers, and other components may be contained. It is preferable to contain a metal salt and an acid because the oxygen barrier layer (a) has good thermal stability and adhesiveness to other resins.
- the metal salt it is preferable to use an alkali metal salt from the viewpoint of improving interlayer adhesion, and it is preferable to use an alkaline earth metal salt from the viewpoint of improving thermal stability.
- the lower limit of the content thereof is, for example, 1 ppm or more, 5 ppm or more, 10 ppm or more, or 20 ppm or more in terms of metal atoms of the metal salt with respect to EVOH.
- the upper limit of the content thereof is, for example, 10,000 ppm or less, 5000 ppm or less, 1000 ppm or less, or 500 ppm or less in terms of metal atoms of the metal salt with respect to EVOH. Since the content of the metal salt is within the range composed of the lower limit and the upper limit, EVOH when recycling the container body (A) while maintaining good interlayer adhesiveness of the oxygen barrier layer (a). Tends to keep good thermal stability.
- the acid examples include carboxylic acid compounds and phosphoric acid compounds. These acids are useful in that they can enhance the thermal stability of EVOH during melt molding.
- the lower limit of the content of carboxylic acid that is, the content of carboxylic acid in the dry composition of the oxygen barrier layer (a) containing EVOH
- the upper limit of the content of the carboxylic acid compound is, for example, 10,000 ppm or less, 1000 ppm or less, or 500 ppm or less.
- the lower limit of the phosphoric acid content (that is, the phosphate radical equivalent content of the phosphoric acid compound of the oxygen barrier layer (a) containing EVOH) is, for example, 1 ppm or more, 10 ppm or more, Alternatively, it is 30 ppm or more.
- the upper limit of the content of the phosphoric acid compound is, for example, 10,000 ppm or less, 1000 ppm or less, or 300 ppm or less.
- the lower limit of its content (that is, the boron-equivalent content of the boron compound in the dry composition of the oxygen barrier layer (a) containing EVOH) is, for example, 1 ppm or more and 10 ppm or more. , Or 50 ppm or more.
- the upper limit of the boron compound is, for example, 2000 ppm or less, 1000 ppm or less, or 500 ppm or less.
- the method for incorporating the above carboxylic acid compound, phosphoric acid compound, or boron compound into the oxygen barrier layer (a) containing EVOH is not particularly limited, and for example, these are added when pelletizing a composition containing EVOH. You may knead.
- the method of adding the carboxylic acid compound, the phosphoric acid compound, or the boron compound is not particularly limited, a method of adding as a dry powder, a method of adding in a paste impregnated with a predetermined solvent, and a suspension in a predetermined liquid.
- Examples thereof include a method of adding in a state of being added, a method of dissolving in a predetermined solvent and adding as a solution, a method of immersing in a predetermined solution, and the like.
- a method of dissolving these compounds in a predetermined solvent and adding them as a solution or a method of immersing them in a predetermined solution because these compounds can be homogeneously dispersed in EVOH.
- the solvent used in such a method is not particularly limited, but water is preferable in view of the solubility of these compounds added as an additive, the cost, the ease of handling, the safety of the working environment, and the like.
- the proportion of EVOH in the oxygen barrier layer (a) is, for example, 60% by mass or more, 70% by mass or more, 80. It is mass% or more, 90 mass% or more, or 100 mass%.
- the term “main component of the oxygen barrier layer (a)” used in the present specification refers to a component having the largest mass% among the components constituting the oxygen barrier layer (a).
- the lower limit of the average thickness of the oxygen barrier layer (a) is, for example, 3 ⁇ m or more, 5 ⁇ m or more, or 10 ⁇ m or more.
- the upper limit of the average thickness of the oxygen barrier layer (a) is, for example, 100 ⁇ m or less, or 50 ⁇ m or less.
- the term "average thickness of the oxygen barrier layer (a)" used in the present specification refers to the oxygen barrier layer (a) containing the EVOH as a main component contained in the multilayer structure (A'). It refers to the value obtained by dividing the total thickness of the whole by the number of layers of the oxygen barrier layer (a).
- the container body (A) constituting the packaging container of the present invention tends to have good durability, flexibility and appearance characteristics.
- the composite structure containing phosphorus and a polyvalent metal element has a barrier layer formed by the reaction of the phosphorus compound and the compound of the polyvalent metal.
- This structure is prepared by mixing a solution containing a phosphorus compound and a solution or dispersion containing a compound of a polyvalent metal to prepare a coating agent, applying the coating agent on a substrate, and It can be formed by reacting with a phosphorus compound.
- a bond represented by MOP is formed between the polyvalent metal atom M and the phosphorus atom.
- M-O-P bonds can be characteristic absorption bands in the infrared absorption spectrum is observed in the region of 1080cm -1 ⁇ 1130cm -1, in infrared absorption spectrum of the composite structure, 800cm -1 ⁇ 1400cm -1
- the maximum absorbed wave number in this region is preferably in the range of 1080 cm -1 to 1130 cm -1 .
- the composite structure tends to have an excellent oxygen barrier property.
- the base material to which the coating agent is applied is not particularly limited, and examples thereof include resins such as thermoplastic resins and thermosetting resins; fiber aggregates such as cloth and paper; wood; glass and the like.
- a thermoplastic resin and a fiber aggregate are preferable, and a thermoplastic resin is more preferable.
- the form of the substrate is not particularly limited, and may be a layered form such as a film or a sheet.
- the base material one made of a thermoplastic resin film and paper is more preferable, and a thermoplastic resin film is further preferable. Polyester is preferable as the thermoplastic resin film, and polyethylene terephthalate is more preferable because it can impart good mechanical strength to the composite structure.
- the polyvalent metal element is not particularly limited as long as it is a polyvalent metal element capable of reacting with two or more phosphorus compounds, and any element can be used. It may be a semi-multivalent metal element.
- polyvalent metal elements include elements such as magnesium, calcium, zinc, aluminum, silicon, titanium and zirconium. Aluminum is particularly preferable.
- the compound of the polyvalent metal element is not particularly limited as long as it can react with the phosphorus compound to form a composite structure, and any compound can be used.
- the polyvalent metal compound may be used as a solution dissolved in a solvent, or may be used as a dispersion liquid in which fine particles of a polyvalent metal compound are dispersed in a solvent, for example, an aqueous solution containing aluminum nitrate as a polyvalent metal compound. Can be used.
- fine particles of the multivalent metal compound may be dispersed in water or an aqueous solvent and used as a dispersion liquid.
- a dispersion a dispersion of aluminum oxide fine particles is preferable.
- fine particles of a multivalent metal oxide have a hydroxyl group on its surface, and the presence of the hydroxyl group can react with the phosphorus compound to form the bond.
- the polyvalent metal oxide fine particles can be synthesized, for example, by using a compound having a hydrolyzable characteristic group bonded to a metal atom as a raw material, hydrolyzing the compound, and condensing the hydrolysis product. Examples of raw materials include aluminum chloride, aluminum triethoxydo, and aluminum isopropoxide.
- Examples of the method for condensing the hydrolysis products include a liquid phase synthesis method such as a sol-gel method.
- the fine particles of a polyvalent metal oxide preferably have, for example, a spherical shape, a flat shape, a polyhedral shape, a fibrous shape, or an acicular shape, and for the reason that the oxygen barrier property can be enhanced, the fibrous shape or the acicular shape can be improved. It preferably has a morphology. Further, the average particle size of the polyvalent metal oxide fine particles is preferably 1 nm or more and 100 nm in order to enhance the oxygen barrier property and transparency.
- the phosphorus compound is not particularly limited as long as it can react with a compound of a polyvalent metal to form the above bond, and any phosphorus compound can be used.
- the phosphorus compound include phosphoric acid compounds and derivatives thereof. Specific examples include phosphoric acid, polyphosphoric acid, phosphorous acid, and phosphonic acid.
- the polyphosphoric acid include pyrophosphoric acid, triphosphate, and polyphosphoric acid obtained by condensing four or more phosphoric acids.
- Derivatives of phosphoric acid-based compounds include phosphates, esters (eg, trimethyl phosphate), halides, and dehydrated products (eg, phosphorus pentoxide).
- This phosphorus compound can be used as a solution, and can be used as a solution containing a hydrophilic organic solvent such as an aqueous solution using water as a solvent or a lower alcohol solution.
- a hydrophilic organic solvent such as an aqueous solution using water as a solvent or a lower alcohol solution.
- the coating agent can be obtained by mixing a solution or dispersion of a polyvalent metal compound with a solution of a phosphorus compound.
- Other components may be added to the coating agent.
- other components include polymer compounds, metal complexes, viscosity compounds, cross-linking agents, plasticizers, antioxidants, UV absorbers, flame retardants and the like.
- high molecular compounds include polyvinyl alcohol, partially saponified products of polyvinyl acetate, polyhydroxyethyl (meth) acrylates, polysaccharides (eg starch), and acrylic polymers (eg polyacrylic acid, polymethacrylic acid, acrylic).
- Acid-methacrylic acid copolymer and salts thereof, ethylene-vinyl alcohol copolymer, ethylene-maleic anhydride copolymer, styrene-maleic anhydride copolymer, isobutylene-maleic anhydride alternating copolymer, Examples thereof include saponified products of ethylene-acrylic acid copolymers and ethylene-ethyl acrylate copolymers.
- the coating film obtained by applying the coating agent, removing the solvent and drying, is subjected to, for example, heat treatment to react the polyvalent metal compound and the phosphorus compound to form the above-mentioned bond, thereby forming phosphorus and poly
- a composite structure containing a valent metal element can be formed.
- the temperature used for the heat treatment is preferably 110° C. or higher, more preferably 120° C. or higher, further preferably 140° C., and particularly preferably 170° C. or higher. When the temperature used for the heat treatment is low, it takes more time to form a sufficient bond, which may reduce the productivity.
- the upper limit of the temperature adopted for the heat treatment varies depending on the type of the base film, and is, for example, 240 ° C.
- the lower limit of the time required for the heat treatment is, for example, 0.1 seconds or more, 1 second or more, or 5 seconds or more.
- the upper limit of the time required for the heat treatment is, for example, 1 hour or less, 15 minutes or less, or 5 minutes or less.
- such a heat treatment may be performed in an air atmosphere, a nitrogen atmosphere, or an argon atmosphere.
- the lower limit of the average thickness of one layer of the oxygen barrier layer (a) containing a composite structure containing phosphorus and a polyvalent metal element as a main component is, for example, 0.05 ⁇ m or more, or 0.1 ⁇ m or more.
- the upper limit of the average thickness of one layer of the oxygen barrier layer (a) containing a composite structure containing phosphorus and a polyvalent metal element as a main component is, for example, 4 ⁇ m or less, or 2 ⁇ m or less.
- the term "average thickness of one layer of oxygen barrier layer (a) containing a composite structure containing phosphorus and a polyvalent metal element as a main component" used in the present specification means a multilayer structure (A').
- the average thickness of one layer of the oxygen barrier layer (a) is smaller than the above lower limit, it becomes difficult to form a layer having a uniform thickness, which may reduce the durability of the obtained multilayer structure. If the average thickness of one layer of the oxygen barrier layer (a) exceeds the above upper limit, the flexibility, stretchability, thermal formation and the like of the obtained multilayer structure may be reduced.
- the starch that is a raw material of the modified starch is not particularly limited, and examples thereof include wheat, corn, tapioca, potato, rice, oat, arrow root, and pea-derived starch.
- high amylose starch is preferable, and high amylose corn starch and high amylose tapioca starch are more preferable.
- the modified starch is preferably a starch obtained by chemically modifying the starch so that the hydroxy group is substituted with a functional group which is an ether, an ester or a combination thereof.
- the modified starch may be the above starch modified to contain a hydroxyalkyl group having 2 to 6 carbon atoms, or the starch modified by reacting the starch with a carboxylic acid anhydride. preferable.
- the modified starch is obtained by modifying the above starch to contain a hydroxyalkyl group having 2 to 6 carbon atoms
- the modified starch has a functional group having 2 to 4 carbon atoms as a substituent.
- a hydroxyethyl group or a hydroxybutyl group capable of producing a hydroxyether substituent for example, and the processed starch is modified by reacting the starch with a carboxylic acid anhydride.
- a carboxylic acid anhydride As the functional group, a butanoic acid ester or a lower homologous group is preferable, and an acetate ester is more preferable.
- maleic acid, phthalic acid or dicarboxylic acid anhydrides such as octenyl succinic anhydride for the production of ester derivatives.
- hydroxypropylated amylose starch containing a hydroxypropyl group is preferable, and hydroxypropylated high amylose starch is more preferable.
- the degree of substitution of the modified starch is represented by the average number of substituents per anhydroglucose unit, and the maximum value is usually 3.
- the degree of substitution of the modified starch is preferably 0.05 or more and less than 1.5.
- the modified starch may contain other starches.
- Other starches include, for example, a mixture of high amylose starch and low amylose starch.
- the modified starch may contain water.
- water can act as a plasticizer.
- the upper limit of the water content is, for example, 20% by mass or less, or 12% by mass or less.
- the water content of the oxygen barrier layer (a) containing modified starch as a main component is generally an equilibrium water content at a relative humidity under a use environment.
- the modified starch may include one or more water-soluble polymers.
- the water-soluble polymer is not particularly limited, and examples thereof include polyvinyl acetate, polyvinyl alcohol, or a combination thereof. Polyvinyl alcohol is particularly preferable.
- the upper limit of the content of the one or more water-soluble polymers is, for example, 20% by mass or less, or 12% by mass or less.
- the lower limit of the content of the one or more water-soluble polymers is, for example, 1% by mass or more, or 4% by mass or more.
- Modified starch may contain one or more plasticizers.
- the plasticizer is not particularly limited, but a polyol is preferable.
- examples of the polyol include sorbitol, glycerol, maltitol, and xylitol, and combinations thereof.
- the upper limit of the content of one or more plasticizers in modified starch is, for example, 20% by mass or less, or 12% by mass or less.
- the modified starch may contain a lubricant.
- lubricants include fatty acids having 12 to 22 carbon atoms, fatty acid salts having 12 to 22 carbon atoms, and combinations thereof.
- the content of the lubricant in the modified starch is, for example, 5% by mass or less.
- the lower limit of the average thickness of the oxygen barrier layer (a) containing modified starch as a main component is, for example, 10 ⁇ m or more, or 100 ⁇ m or more.
- the upper limit of the average thickness of the oxygen barrier layer (a) containing modified starch as a main component is, for example, 1000 ⁇ m or less, or 800 ⁇ m or less.
- the term "average thickness of one layer of the oxygen barrier layer (a) containing modified starch as a main component" used in the present specification means that the above-mentioned modified starch contained in the multilayer structure (A') is a main component. Refers to a value obtained by dividing the total thickness of the entire oxygen barrier layer (a) contained in the above by the number of layers of the oxygen barrier layer (a).
- the average thickness of one layer of the oxygen barrier layer (a) is smaller than the above lower limit, it becomes difficult to form a layer having a uniform thickness, which may reduce the durability of the obtained multilayer structure. If the average thickness of one layer of the oxygen barrier layer (a) exceeds the above upper limit, the flexibility, stretchability, thermal formation, etc. of the obtained multilayer structure may decrease.
- the barrier layer containing the inorganic layered compound is a layer that exhibits a barrier property due to the inorganic layered compound when the inorganic layered compound is dispersed in the thermoplastic resin, for example.
- the thermoplastic resin used for the barrier layer containing the inorganic layered compound is not particularly limited, and examples thereof include polyamide and ethylene-vinyl alcohol copolymer.
- the inorganic layered compound examples include swellable mica, clay, montmorillonite, smectite, hydrotalcite and other inorganic layered compounds. Further, the inorganic layered compound may be an organically treated organically modified inorganic layered compound.
- the inorganic layered compound is composed of, for example, plate-like crystals, and has an arbitrary appearance such as circular, non-circular, elliptical, substantially oval, and substantially cocoon-shaped.
- the inorganic layered compound preferably has an average length of long sides of a plate-like crystal that can be measured by an electron microscope and satisfies a predetermined range.
- the average length of the long side of the inorganic layered compound is preferably 70 nm or more, more preferably 80 nm or more, and even more preferably 90 nm or more.
- the inorganic layered compound is oriented in the film plane due to the stress generated during stretching, but if the average length of the long side of the inorganic layered compound is less than 70 nm, the degree of orientation is insufficient and sufficient oxygen permeability is obtained. You may not get it.
- the average length of the long side of the inorganic layered compound may be 2000 nm or less.
- the inorganic layered compound does not contain a coarse substance having a thickness of more than 2 ⁇ m.
- the inorganic layered compound contains a coarse substance exceeding 2 ⁇ m, the transparency and stretchability may decrease.
- the content of the inorganic layered compound in the barrier layer containing the inorganic layered compound is preferably 0.3 to 20% by mass based on the mass of the barrier layer.
- the inorganic vapor deposition layer is, for example, a barrier layer obtained by depositing an inorganic substance on a base material.
- the substrate that can form the inorganic vapor deposition layer include resins such as thermoplastic resins and thermosetting resins; fiber aggregates such as cloth and paper; wood; glass and the like. Thermoplastic resins and fiber aggregates are preferable, and thermoplastic resins are more preferable.
- the base material is composed of the above resin, it is preferable that the base material has a layered form such as a film or a sheet.
- thermoplastic resin used for the base material examples include polyolefin resins such as polyethylene and polypropylene; polyester resins such as polyethylene terephthalate (PET), polyethylene-2,6-naphthalate, polybutylene terephthalate, and copolymers thereof; Polyamide-based resins such as nylon-6, nylon-66, and nylon-12; hydroxyl group-containing polymers such as polyvinyl alcohol and ethylene-vinyl alcohol copolymers; polystyrene; poly (meth) acrylic acid ester; polyacrylonitrile; polyvinyl acetate; Polycarbonate; polyarylate; regenerated cellulose; polyimide; polyetherimide; polysulfone; polyethersulfone; polyetheretherketone; ionomer resins and the like. At least one thermoplastic resin selected from the group consisting of polyethylene, polypropylene, polyethylene terephthalate, nylon-6, and nylon-66 is preferable.
- the base material When a film made of a thermoplastic resin is used as the base material, the base material may be a stretched film or a non-stretched film. Since the obtained multilayer structure is excellent in processability (printing, laminating, etc.), it is preferably a stretched film, and more preferably a biaxially stretched film.
- the biaxially stretched film may be a biaxially stretched film produced by any one of a simultaneous biaxial stretching method, a sequential biaxial stretching method, and a tubular stretching method.
- Examples of paper that can be used as the base material include kraft paper, high-quality paper, imitation paper, glassine paper, parchment paper, synthetic paper, white paperboard, Manila ball, milk carton base paper, cup base paper, ivory paper, and the like.
- the thickness thereof is preferably 1 to 1,000 ⁇ m, more preferably 5 to 500 ⁇ m, and 9) because the mechanical strength and workability of the obtained multilayer structure are improved. It is more preferably about 200 ⁇ m.
- the inorganic substance examples include metals such as aluminum, tin, indium, nickel, titanium, and chromium; metal oxides such as silicon oxide and acid value aluminum; metal nitrides such as silicon nitride; metal nitrides such as silicon nitride; Examples thereof include metal carbonitrides such as silicon carbonitride.
- An inorganic vapor deposition layer formed of any one of aluminum, aluminum oxide, silicon oxide, magnesium oxide, silicon nitride, and the like, or a combination thereof is preferable because it has excellent barrier properties against oxygen or water vapor.
- the method for forming the inorganic vapor deposition layer is not particularly limited, and for example, a vacuum vapor deposition method (for example, resistance heating vapor deposition method, electron beam deposition method, molecular beam epitaxy method, etc.), ion plating method, sputtering method (dual magnetron sputtering, etc.), etc.
- a vacuum vapor deposition method for example, resistance heating vapor deposition method, electron beam deposition method, molecular beam epitaxy method, etc.
- ion plating method for example, resistance heating vapor deposition method, electron beam deposition method, molecular beam epitaxy method, etc.
- ion plating method for example, ion plating method, sputtering method (dual magnetron sputtering, etc.), etc.
- thermochemical vapor deposition method eg, catalytic chemical vapor deposition method
- photochemical vapor deposition method e.g., photochemical vapor deposition method
- plasma chemical vapor deposition method e.g, capacitive coupling plasma method, induced coupling plasma method, surface Wave plasma method, electron cyclotron resonance plasma method, etc.
- atomic layer deposition method e.g., metal organic chemical vapor deposition method.
- the thickness of the inorganic vapor-deposited layer varies depending on the type of components constituting the inorganic vapor-deposited layer, but is preferably 0.002 to 0.5 ⁇ m, more preferably 0.005 to 0.2 ⁇ m, and further preferably 0.01 to 0.1 ⁇ m. preferable. Within this range, the thickness at which the barrier properties and mechanical properties of the multilayer structure are improved can be selected. If the thickness of the inorganic thin-film deposition layer is less than 0.002 ⁇ m, the reproducibility of the barrier property development of the inorganic vapor-filming layer against oxygen and water vapor tends to decrease, and when the inorganic thin-film deposition layer does not exhibit sufficient barrier property. There is also. Further, when the thickness of the inorganic vapor deposition layer exceeds 0.5 ⁇ m, the barrier property of the inorganic vapor deposition layer tends to deteriorate when the multilayer structure is pulled or bent.
- the metal foil is a single-layer or multi-layer structure composed of a metal having excellent malleability.
- Examples of the metal contained in the metal foil include aluminum.
- the metal foil has the form of, for example, an aluminum foil or an aluminum tape.
- the multilayer structure (A') may include at least one thermoplastic resin layer.
- the number of layers of the thermoplastic resin layer in the multilayer structure (A') is preferably one or more, and more preferably two or more, from the viewpoint of improving impact resistance.
- the material forming each layer may be the same or different.
- the thermoplastic resin layer contains a resin composition containing a thermoplastic resin as a main component.
- the thermoplastic resin layer may contain either a single thermoplastic resin or a mixture of a plurality of thermoplastic resins as a main component.
- the multilayer structure (A') in the present invention can improve the stretchability and thermoformability by laminating a thermoplastic resin layer containing a resin composition containing a thermoplastic resin as a main component.
- the lower limit of the average thickness of one layer of the thermoplastic resin layer is, for example, 100 ⁇ m or more, or 200 ⁇ m or more.
- the upper limit of the average thickness of one layer of the thermoplastic resin layer is, for example, 1000 ⁇ m or less, 500 ⁇ m or less, or 400 ⁇ m or less.
- the term "average thickness of one layer of the thermoplastic resin layer” used in the present specification refers to the total thickness of the total thickness of the thermoplastic resin contained in the multilayer structure (A') as the thermoplastic resin. It refers to the value divided by the number of layers.
- the average thickness of one layer of the thermoplastic resin layer is 100 ⁇ m or more, it is easy to adjust the thickness at the time of laminating, and the durability of the multilayer structure (A′) can be further enhanced.
- the average thickness of one layer of the thermoplastic resin layer is 500 ⁇ m or less, the thermoformability tends to be good.
- the thermoplastic resin constituting the thermoplastic resin layer is not particularly limited as long as it is a resin that softens by heating to the glass transition temperature or the melting point and exhibits plasticity.
- a polyolefin resin polyethylene resin, polypropylene resin, etc.
- Grafted polyolefin resin graft-modified with unsaturated carboxylic acid or its ester halogenated polyolefin resin, ethylene-vinyl acetate copolymer resin, ethylene-acrylic acid copolymer resin, ethylene-acrylic acid ester copolymer resin , Polyester resin, polyamide resin, polyvinyl chloride resin, polyvinylidene chloride resin, acrylic resin, polystyrene resin, vinyl ester resin, ionomer, polyester elastomer, polyurethane elastomer, aromatic or aliphatic polyketone and the like.
- a polyolefin resin is preferable, and a polyethylene resin and a polypropylene resin and
- the thermoplastic resin layer may contain additives as long as the object of the present invention is not impaired.
- the additive include resins other than the above-mentioned thermoplastic resin, heat stabilizers, ultraviolet absorbers, antioxidants, colorants, fillers and the like.
- the content of the additive is preferably 20% by mass or less, more preferably 10% by mass or less, and further preferably 5% by mass or less, based on the total amount of the thermoplastic resin layer.
- the multilayer structure (A') may include at least one adhesive layer (hereinafter, may be abbreviated as "Ad”).
- the adhesive layer in the multilayer structure (A') is arranged, for example, between the oxygen barrier layer (a) and the thermoplastic resin layer.
- the number of layers of the adhesive layer contained in the multilayer structure (A') is not particularly limited. When a plurality of adhesive layers are included in the multilayer structure (A'), the materials constituting each layer may be the same or different.
- a known adhesive resin can be used as the material constituting the adhesive layer. Further, the material constituting the adhesive layer can be appropriately selected by those skilled in the art according to the method for producing the multilayer structure (A').
- the above-mentioned multilayer structure (A′) is manufactured by a laminating method
- the adhesive layer is not particularly limited as long as it has adhesiveness to the oxygen barrier layer (a) and the thermoplastic resin layer.
- an adhesive resin containing a carboxylic acid-modified polyolefin is a modified olefin containing a carboxyl group obtained by chemically (for example, addition reaction, graft reaction, etc.) binding an ethylenically unsaturated carboxylic acid, an ester thereof or an anhydride thereof to an olefin polymer.
- a system polymer can be used conveniently.
- examples of the olefin-based polymer include polyolefins such as polyethylene (for example, low-pressure polyethylene, medium-pressure polyethylene, and high-pressure polyethylene), linear low-density polyethylene, polypropylene, and boribten, and olefins and other monomers (for example, vinyl). And an ester, an unsaturated carboxylic acid ester, etc.) (for example, an ethylene-vinyl acetate copolymer, an ethylene-acrylic acid ethyl ester copolymer, etc.).
- Examples of the ethylenically unsaturated carboxylic acid, its ester or its anhydride include ethylenically unsaturated monocarboxylic acid, or its ester, ethylenically unsaturated dicarboxylic acid, or its mono- or diester, or its anhydride, and among them, Ethylene unsaturated dicarboxylic acid anhydride is preferred. Specific examples include maleic acid, fumaric acid, itaconic acid, maleic anhydride, itaconic anhydride, maleic acid monomethyl ester, maleic acid monoethyl ester, maleic acid diethyl ester, fumaric acid monomethyl ester, and the like. , Maleic anhydride is preferred.
- the amount of ethylenically unsaturated carboxylic acid or its anhydride added to the olefin polymer or the amount of graft (modification) is, for example, 0.0001% by mass to 15% by mass, preferably 0.0001% by mass, based on the olefin polymer. It is 0.001% by mass to 10% by mass.
- the addition reaction and graft reaction of ethylenically unsaturated carboxylic acid or its anhydride to an olefin-based polymer shall be carried out by, for example, a radical polymerization method in the presence of a solvent (xylene or the like) or a catalyst (peroxide or the like). Can be done.
- the melt flow rate (MFR) of the carboxylic acid-modified polyolefin thus obtained measured at 210 ° C. is preferably 0.2 g / 10 min to 30 g / 10 min, and is preferably 0.5 g / 10 min to 10 g / min. It is more preferably 10 minutes.
- These adhesive resins may be used alone or in combination of two or more.
- the lower limit of the average thickness of the multilayer structure (A′) is, for example, 100 ⁇ m or more, or 200 ⁇ m or more.
- the upper limit of the average thickness of the multilayer structure (A') is, for example, 2000 ⁇ m or less, 1000 ⁇ m or less, or 800 ⁇ m or less.
- the average thickness of the multilayer structure is 100 ⁇ m or more, the impact resistance tends to be excellent.
- the average thickness of the multilayer structure is 2000 ⁇ m or less, the manufacturing cost tends to decrease, and good thermoformability tends to be obtained.
- the layer structure of the multilayer structure (A') is not particularly limited, and when the oxygen barrier layer (a) is represented by E, the adhesive layer is represented by Ad, and the thermoplastic resin layer is represented by T, for example, T / E / It may have a structure of T, E/Ad/T, T/Ad/E/Ad/T, or the like.
- Each layer constituting the multilayer structure (A') may be either a single layer or a multilayer. From the viewpoint of enhancing impact resistance, the multilayer structure (A') preferably has a thermoplastic resin layer as the outermost layer.
- the multilayer structure (A') can be produced by a known method such as a co-extrusion molding method, a co-injection molding method, an extrusion laminating method, or a dry laminating method.
- a coextrusion molding method include a coextrusion laminating method, a coextrusion sheet molding method, a coextrusion inflation molding method, and a coextrusion blow molding method.
- the layer structure (b-1) 134 and the layer structure (b-2) 136 that compose the lid member (B) 130 of the packaging container 100 of the present invention are The layer structure (b-2) 136 is arranged so as to block all of the perforations 132 provided in the layer structure (b-1) 134.
- either or both of the layer structure (b-1) 134 and the layer structure (b-2) 136 includes the oxygen barrier layer (b).
- the water contact angle of the inner surface of the lid material (B) measured in accordance with JIS R3257 (1999 "Base glass surface wettability test method”) is preferably 70 ° or less, preferably 65 ° or less. Is more preferable, and 60 ° or less is further preferable.
- the water contact angle is 70 ° or less, for example, even if the packaging container of the present invention contains a content containing a large amount of water (for example, food) (for example, as a steam sterilized product, it can be used in stores. With the passage of time (by being displayed), the inside of the packaging container does not fog, and the contents can be easily visually recognized.
- the appearance of the lid material (B) is improved.
- a material suitable for the material constituting the inside of the lid material (B) may be used, or a material constituting the inside of the lid material (B) may be used to prevent the material described later. Addition of a fogging agent and the like can be mentioned.
- the perforations provided in the layer structure (b-1) penetrate the front and back of the layer structure (b-1) and are preferably 2 or more, more preferably 4 in number on the layer structure (b-1). As mentioned above, more preferably 6 or more are provided.
- the perforations are provided to discharge the air inside the container body (A) in the case of steam sterilization described later, and further inflow and discharge of steam for efficient sterilization. Perforations can also be used to replace oxygen in the packaging with nitrogen after sterilization.
- the perforation has an arbitrary shape such as a circle, an ellipse, a rectangle, and a polygon.
- the lower limit of the diameter of the perforations is, for example, 1 mm or more, 1.5 mm or more, or 2 mm or more.
- the diameter of the perforations is 1 mm or more, it becomes easy for steam to flow from the layered structure (b-1) into the container body (A) during steam sterilization, and the contents are efficiently sterilized. You can Further, even when the oxygen in the container body (A) is replaced with nitrogen, the replacement can be efficiently performed.
- the upper limit of the diameter of the perforations is, for example, 20 mm or less, 15 mm or less, or 10 mm or less. If the diameter of the perforation is larger than these, the falling bacteria may promote contamination of the contents after steam sterilization.
- the layer structure (b-1) is manufactured by forming the above-mentioned perforations in the layer structure (B') below.
- the layer structure (B') is a single-layer or multi-layer structure before perforation is provided in the layer structure (b-1).
- the layer structure (B′) is also preferably transparent or translucent in that the contents contained in the container body (A) can be easily visually recognized.
- Examples of layers that can form the layer structure (B') include an oxygen barrier layer (b), a thermoplastic resin layer, an adhesive layer, and a sealant layer.
- the oxygen barrier layer (b) is preferably one or more layers in the layer structure (B').
- the materials constituting each layer may be the same or different.
- the lower limit and the upper limit of the average thickness of one layer of the oxygen barrier layer (b) are the same as, for example, the lower limit and the upper limit of the average thickness of the one layer of the oxygen barrier layer (a) that can be included in the multilayer structure (A′). Can be set within the range of.
- the term "average thickness of one layer of oxygen barrier layer (b)" used in the present specification refers to the total thickness of the oxygen barrier layer (b) that can be contained in the layer structure (B'). A value obtained by dividing the total by the number of layers of the oxygen barrier layer (b) is referred to.
- Examples of the material that can form the oxygen barrier layer (b) include the same material as the oxygen barrier layer (a) that can be contained in the multilayer structure (A'). Further, preferable examples of such a material include EVOH, polyamide, a composite structure containing phosphorus and a polyvalent metal element, an inorganic layered compound, an inorganic vapor deposition layer, and a modified starch, and a combination thereof.
- the oxygen barrier layer (b) is preferably composed of a material containing EVOH.
- the layer structure (B′) includes a thermoplastic resin layer and/or an adhesive layer
- the thermoplastic resin layer and the adhesive layer are each one or more in the layer structure (B′).
- the layered structure (B') includes a plurality of thermoplastic resin layers and/or adhesive layers
- the material forming each layer may be the same or different.
- the lower and upper limits of the average thickness of one layer of the thermoplastic resin layer in the layer structure (B') are, for example, the lower and upper limits of the average thickness of one layer of the thermoplastic resin layer that can be contained in the multilayer structure (A'). Can be set within the same range.
- the term “average thickness of one layer of the thermoplastic resin layer in the layered structure (B′)” used in the present specification refers to the above-mentioned thermoplastic resin layer that can be included in the layered structure (B′). A value obtained by dividing the total thickness by the number of the thermoplastic resin layers is referred to.
- thermoplastic resin layer and the adhesive layer in the layer structure (B') are the same as those of the thermoplastic resin layer and the adhesive layer that can be contained in the multilayer structure (A'), for example.
- the materials include.
- the sealant layer constitutes at least one outermost layer of the layer structure (B').
- the sealant layer has a melting point of, for example, 180° C. or lower, preferably 110° C. or higher and 175° C. or lower, and more preferably 120° C. or higher and 170° C. or lower.
- the layer structure (B') enhances the sealability with the multilayer structure (A') constituting the container body (A), and in the packaging container of the present invention, the container
- the adhesion between the main body (A) and the lid material (B) that is, the layer structure (B') can be improved.
- Examples of the material constituting such a sealant layer include polyolefin resin (polyethylene resin, polypropylene resin, etc.), grafted polyolefin resin graft-modified with unsaturated carboxylic acid or an ester thereof, halogenated polyolefin resin, and ethylene-vinyl acetate.
- Polymer resin ethylene-acrylic acid copolymer resin, ethylene-acrylic acid ester copolymer resin, polyester resin, polyamide resin, polyvinyl chloride resin, polyvinylidene chloride resin, acrylic resin, polystyrene resin, vinyl ester resin, ionomer , Polyester elastomers, polyurethane elastomers, aromatic or aliphatic polyketones, and the like.
- Polyolefin resin is preferable because it has good durability in steam sterilization (it is hard to be deformed before and after steam sterilization, it is hard to cause delamination between layers, etc.) and it is easy to make perforations, and it is suitable for steam sterilization exceeding 110 ° C.
- polypropylene resin is preferable because it has durability.
- the layered structure (B') also preferably contains an antifogging agent in order to impart antifogging properties.
- the antifogging agent is contained in the layer on the side facing the container body (A) when used as the lid material (B), for example. Is preferred.
- the antifogging agent that can be used for the layered structure (B') includes all of those having an antifogging effect which are generally marketed as “antifogging agent” or "antistatic agent".
- antifogging agent include fatty acid esters of polyhydric alcohols, ethylene oxide adducts of higher fatty acid amines, higher fatty acid alkanolamides, and the like, which can be used alone or in combination of two or more.
- the amount of the antifogging agent that can be contained in the layer structure (B′) is not necessarily limited, but for example, 15,000 ppm to 30,000 ppm based on the material forming the layer of the layer structure (B′) to be added. Is preferable, and 17,000 to 25,000 ppm is more preferable.
- the layered structure (B′) that is, the lid material (B)
- the problem that the antifogging agent bleeds out can be solved without lowering the moldability of the layered structure (B′) itself.
- the antifogging agent orients the hydrophilic group portion outside the layer and the lipophilic group portion inside the layer in the layer of the added layer structure (B'), the wettability on the outer surface of the layer is improved. improves. As a result, the water agglomerated on the surface of the layer spreads in the form of a thin film without forming water droplets, so that the surface of the layer can be prevented from fogging.
- the layer constituting the layered structure (B') containing an antifogging agent may contain additives such as an antioxidant, a heat stabilizer and a lubricant.
- additives such as an antioxidant, a heat stabilizer and a lubricant.
- the content of these may be appropriately selected by those skilled in the art depending on the type of the additive, but the material in the layer of the layer structure (B′) to which the antifogging agent is added (however, the antifogging agent is excluded) It is preferable that the amount is up to 10 parts by weight with respect to 100 parts by weight. If the content of such an additive exceeds 10 parts by weight, the antifogging effect provided by the antifogging agent may be reduced.
- the lower limit of the average thickness of the layer structure (B') is, for example, 40 ⁇ m or more, or 50 ⁇ m or more.
- the upper limit of the average thickness of the layer structure (B′) is, for example, 400 ⁇ m or less, 350 ⁇ m or less, or 300 ⁇ m or less.
- the average thickness of the layer structure (B′) is 40 ⁇ m or more, the impact resistance tends to be excellent.
- the average thickness of the layer structure (B') is 400 ⁇ m or less, the manufacturing cost tends to decrease and good thermoformability tends to be obtained.
- the layered structure (B′) When the layered structure (B′) is a multi-layered structure, the layered structure (B′) has a layered structure (here, the oxygen barrier layer (b) is E, the adhesive layer is Ad, and the thermoplastic resin layer is T. It may have a structure such as T/E/T, E/Ad/T, T/Ad/E/Ad/T, or T/E/Ad/T.
- the layer structure (B') is a multilayer
- the layer structure (B') can be produced by a known method such as a coextrusion molding method, a coinjection molding method, an extrusion laminating method, a dry laminating method.
- the layered structure (B′) is wholly under JIS-K7126-2 (2006) under 20° C. and 65% RH conditions.
- the oxygen permeability measured according to the second part (isopressure method) is, for example, 100 cc ⁇ 20 ⁇ m / (m 2 ⁇ day ⁇ atm) or less, preferably 50 cc ⁇ 20 ⁇ m / (m 2 ⁇ day ⁇ atm) or less, more preferably. Is designed to be 10 cc ⁇ 20 ⁇ m / (m 2 ⁇ day ⁇ atm) or less.
- the container body (A) and the lid member (B) that is, the layer structure (B′) are The gas barrier property between them can be sufficiently retained even when the contents are contained.
- the layered structure (B') has a piercing strength of, for example, 10N to 40N, preferably 13N to 35N as a whole, regardless of whether it is a single layer or a multilayer. Since the layer structure (B′) has a puncture strength in such a range as a whole, when the layer structure (b-1) is produced, the layer structure (B′) is Perforations can be made efficiently.
- the layer structure (b-2) is a single-layer or multi-layer structure.
- the layered structure (b-2) may also be transparent or translucent in that the contents contained within the container body (A) can be easily visually recognized.
- Examples of layers that can form the layered structure (b-2) include an oxygen barrier layer (b), a thermoplastic resin layer, and an adhesive layer.
- the oxygen barrier layer (b) is preferably one or more layers in the layer structure (b-2).
- the materials constituting each layer may be the same or different.
- the lower limit and the upper limit of the average thickness of one layer of the oxygen barrier layer (b) are the same as, for example, the lower limit and the upper limit of the average thickness of the one layer of the oxygen barrier layer (a) that can be included in the multilayer structure (A′). Can be set within the range of.
- the material that can form the oxygen barrier layer (b) include, for example, the same materials as the oxygen barrier layer (a) that can be included in the multilayer structure (A′), such as EVOH, polyamide, phosphorus and Composite structures containing polyvalent metal elements, inorganic layered compounds, inorganic vapor-deposited layers, metal foils, and processed starches, and combinations thereof are preferable, and metal foils are more preferable.
- the layer structure (b-2) includes a thermoplastic resin layer and / or an adhesive layer
- the thermoplastic resin layer and the adhesive layer are each one or more layers in the layer structure (b-2). It is preferable.
- the layered structure (b-2) includes a plurality of thermoplastic resin layers and/or adhesive layers, the material forming each layer may be the same or different.
- the lower and upper limits of the average thickness of the layer of the thermoplastic resin layer in the layer structure (b-2) are, for example, the lower limit and the upper limit of the average thickness of the layer of the thermoplastic resin layer that can be contained in the multilayer structure (A'). It can be set within the same range as each of the upper limits.
- the term “average thickness of one layer of the thermoplastic resin layer in the layered structure (b-2)” used in the present specification means the above thermoplastic resin that can be contained in the layered structure (b-2). A value obtained by dividing the total thickness of the layers by the number of layers of the thermoplastic resin layer is referred to.
- thermoplastic resin layer and the adhesive layer in the layer structure (b-2) examples include, for example, the thermoplastic resin layer and the adhesive layer that can be contained in the multilayer structure (A'). Similar materials can be mentioned.
- the layer structure (b-2) may also contain the same antifogging agent as the layer structure (B') in order to impart antifogging properties.
- the content of the antifogging agent in the layer structure (b-2) is not necessarily limited, but for example, a content similar to that of the layer structure (B') can be selected by those skilled in the art.
- the layer constituting the layer structure (b-2) containing the antifogging agent may contain additives such as an antioxidant, a heat stabilizer, and a lubricant. These contents can also be appropriately selected by those skilled in the art.
- the lower limit of the average thickness of the layer structure (b-2) is, for example, 40 ⁇ m or more, or 50 ⁇ m or more.
- the upper limit of the average thickness of the layer structure (b-2) is, for example, 400 ⁇ m or less, 350 ⁇ m or less, or 300 ⁇ m or less.
- the average thickness of the layer structure (b-2) is 40 ⁇ m or more, the impact resistance tends to be excellent.
- the average thickness of the layer structure (b-2) is 400 ⁇ m or less, the manufacturing cost tends to decrease and good thermoformability tends to be obtained.
- the layer structure of the layer structure (b-2) is (here, the oxygen barrier layer (b) is E, the adhesive layer is Ad, and the thermoplastic resin layer is used.
- T oxygen barrier layer
- the layer structure (b-2) may have a structure such as T / E / T, E / Ad / T, T / Ad / E / Ad / T, T / E / Ad / T, and the like.
- the layer structure (b-2) is a multilayer
- the layer structure (b-2) can be produced by a known method such as a coextrusion molding method, a coinjection molding method, an extrusion laminating method, a dry laminating method. it can.
- the lid material (B) includes the layer structure (b-1) and the layer structure (b-2) as described above.
- the layer structure (b-2) completely seals the perforation on the layer structure (b-1).
- the lid material (B) may be provided with an adhesive layer between the layer structure (b-1) and the layer structure (b-2) in order to improve the adhesion between them. ..
- the material constituting the pressure-sensitive adhesive layer is not particularly limited, and examples thereof include an acrylic polymer and a pressure-sensitive adhesive containing a pressure-sensitive adhesive resin having a hydroxyl group.
- the acrylic polymer that can be used as a material constituting the adhesive layer for example, a homopolymer or a copolymer containing (meth) acrylic acid ester as a main component can be used, and methyl (meth) acrylate, ( Examples thereof include ethyl (meth)acrylate, butyl (meth)acrylate, and 2-ethylhexyl (meth)acrylate.
- the crosslinkable monomer (meth) acrylic acid, glycidyl (meth) acrylate, 2-hydroxyethyl (meth) acrylate, N-methylol (meth) acrylamide and the like can be used in combination.
- other copolymerizable monomers such as vinyl acetate and styrene can be used in combination to the extent that the adhesive properties of the (meth) acrylic acid ester (co) polymer are not impaired.
- the acrylic polymer can be produced by a known method.
- the (meth) acrylic acid ester is dissolved in a solvent such as ethyl acetate alone or in combination with another copolymerizable monomer, and is azo-based. It can be easily produced by a solution polymerization method in which various known oxide-based polymerization initiators are added and heated.
- the tackifier resin that can be used as a material for forming the pressure-sensitive adhesive layer it is preferable to use a resin acid ester having a hydroxyl value of 10 to 25, which is obtained by reacting a resin acid and a polyhydric alcohol.
- the resin acid include resin acid monomers such as rosins, and examples of the rosin include gum rosin, wood rosin, tall oil rosin and the like.
- the resin acid preferably contains 5% by weight or more of the resin acid dimer, and more preferably 10% by weight or more.
- the resin acid dimer is usually referred to as polymerized rosin, and refers to a dimer of a resin acid monomer such as rosins.
- polyhydric alcohol examples include dihydric alcohols such as ethylene glycol, diethylene glycol and triethylene glycol, trihydric alcohols such as glycerin, and tetrahydric or higher alcohols such as pentaerythritol, dipentaerythritol and polyglycerin.
- the packaging container of the present invention can prevent the invasion of contaminants such as bacteria and dust and oxygen, and can maintain the quality of the contained sterilized contents for a long period of time.
- the packaging container of the present invention can also reduce or eliminate fogging of the packaging container when stored in a refrigerator or freezer, and can improve the visibility of the contents. Therefore, the packaging container of the present invention is useful as a steam sterilization product containing sterilized contents.
- the steam sterilized product of the present invention includes the above packaging container and steam sterilized contents. Specifically, in the steam sterilization product of the present invention, the sterilized contents are contained on the inner surface of the container body (A) that constitutes the packaging container, and the opening of the container body (A) is It is sealed with a lid material (B) that constitutes the packaging container.
- a region surrounded by the container body (A) and the lid member (B) (a closed space formed by the container body (A) and the lid member (B)) and the outside
- the movement of air for example, oxygen
- a predetermined gas concentration be maintained in the closed space inside the steam sterilization product.
- the oxygen concentration in the region (sealed space) surrounded by the container body (A) and the lid material (B) in the steam sterilization product of the present invention is, for example, 5% by volume or less, preferably 3% by volume. It is as follows. By setting the oxygen concentration in the closed space to such an oxygen concentration, the oxygen concentration in the closed space can be kept relatively low even if the steam sterilized product is stored for a long period of time. As a result, it is possible to suppress the progress of deterioration or deterioration of the product due to putrefaction or oxidation of the contents, and to substantially extend the storage period of the contents.
- the carbon dioxide concentration in the region (sealed space) surrounded by the container body (A) and the lid material (B) in the steam sterilization product of the present invention is, for example, 0.5% by volume or more and 40 volumes. % Or less, preferably 5% by volume or more and 35% by volume or less.
- a sterilized gas for example, oxygen gas, air, etc.
- an inert gas for example, nitrogen gas, carbon dioxide gas
- the steam sterilization product of the present invention can contain various contents.
- the contents are, for example, articles that do not want to come into contact with contaminants such as bacteria and dust and oxygen when stored or transported, and include foods, cosmetics, pharmaceuticals and the like. Foods are preferred, especially foods that can retain their appearance and quality during steam sterilization under high temperature and pressure (eg, foods that are solid upon storage).
- Foods that can be accommodated as the steam sterilized product of the present invention are not necessarily limited, but for example, prepared foods such as hamburger steak, meatballs, fried chicken, buckwheat noodles, grilled fish, kinpira gobo, and dumplings; processing of ham, sausage, bacon, etc. Meat products; noodles such as udon, buckwheat, pasta and Chinese noodles; cooked and/or semi-cooked solid refrigerated or frozen foods; and the like.
- (S1) a step of arranging contents in a container body (A) including an opening and an inner surface capable of containing the contents;
- (S4) the perforations of the layer structure (b-1) It is preferable to include the step of sealing with the layered structure (b-2) in this order.
- the method for producing a steam sterilized product of the present invention is another step of arranging the contents in the container body (A) including the opening (S1) and the inner surface capable of accommodating the contents; (S2). '(A)) A step of disposing a layered structure (B') in the opening of the container body (A) and sealing the opening with the layered structure (B'); (S2'(b )) A step of providing at least two perforations in the layer structure (B') to obtain the layer structure (b-1); (S3) the container body through the perforations of the layer structure (b-1). (A) a step of circulating steam to the inner surface to sterilize the contents; (S4) closing the perforations of the layer structure (b-1) with a layer structure (b-2) It is preferred to include the steps in this order.
- step (S3) and the step (S4) Between the step (S3) and the step (S4), (S3 (b)) the inside of the container body (A) is depressurized and the steam in the container body (A) is discharged. It is preferable to include a step of cooling the contents. Further, it is preferable to include (S3 (c)) a step of filling the container body (A) with the sterilized gas between the steps (S3 (b)) and the step (S4). ..
- step (S3 (d)) at least one of the perforations supplies an inert gas into the container body (A), and It is preferable to include a step of replacing the gas in the packaging container with an inert gas by discharging the inert gas from the rest of the perforations.
- a steam sterilized product is manufactured as follows. This will be described with reference to FIG.
- the content F is placed on the inner surface 114 of the container body (A) 110 having the opening 112 ((S1) in FIG. 5).
- the content F is supported by the tops of the plurality of protrusions 124 provided on the bottom of the container body (A) 110.
- cavities corresponding to the plurality of vapor circulation portions 122 are formed between the plurality of protrusions 124 and the contents F.
- the contents F are preferably arranged such that the upper end thereof is located below the opening of the container body (A) 110. This is because the steam introduced thereafter also passes through the upper end of the content F and can be sterilized.
- a layer structure (b-1) 134 in which at least two perforations 132 are provided in advance is arranged in the opening 112 of the container body (A) 110, and the opening 112 is the layer structure (b-1). It is closed at 134 ((S2) in FIG. 5).
- the layer structure (b-1) 134 is known to those skilled in the art such as an outer peripheral portion of the opening 112 (for example, a flange portion 120 of the container body (A) 110) and a heat seal or an adhesive. Adhered by means. In this state, the inside of the container body (A) 110 communicates with the outside through the perforations 132 provided in the layer structure (b-1).
- the sterilization of the contents F may be performed while the container body (A) 110 containing the contents F is kept in a normal pressure state, or the container body (A) 110 containing the contents F is It may be performed after once exposed to a reduced pressure environment. When it is performed after the exposure to the reduced pressure environment, the content F tends to be prevented from being deteriorated due to oxidative deterioration.
- the layer structure (b-1) is formed as shown in FIG. 5 (S3). Steam is introduced into the container body (A) 110 from a part of at least two perforations 132 provided, and deaeration is performed from the remaining perforations.
- the container body (A) 110 in which the layer structure (b-1) 134 is arranged is, for example, .
- the air in the container body (A) 110 is discharged (degassed) to the outside through the perforation 132 ((a) in FIG. 6).
- the container body 110 containing the contents F and the layered structure (b-1) are, for example, placed in a container 202 that can be closed once.
- the sealable container 202 includes a pipe 206 having a valve 204 and connected downstream to a decompression device 208 such as a vacuum pump, and a pipe having a valve 205 and introducing steam through means not shown by opening the valve 205. 207 is provided.
- a decompression device 208 such as a vacuum pump
- a pipe having a valve 205 and introducing steam through means not shown by opening the valve 205. 207 is provided.
- the decompression state in the sealable container 202 is released, and steam is introduced into the sealable container 202 through the pipe 207.
- the steam introduced into the sealable container 202 is further introduced into the container body (A) 110 through all of the perforations 132 provided in the layer structure (b-1), and the content F is in direct contact with the steam. Can be done.
- the temperature of the steam introduced for sterilizing the content F varies depending on the type and size of the content F, the content of the container body (A), and the like, and is not necessarily limited. For example, 100 ° C. to 145 ° C. , Preferably 115 ° C to 135 ° C. If the temperature of the steam to be introduced is lower than 100 ° C., it tends to be impossible to impart a sufficient bactericidal effect to the content F, or it tends to be necessary to carry out the above introduction for a long time. If the temperature of the introduced steam exceeds 145 ° C., not only the sterilization of the content F but also the quality of itself may be impaired.
- the introduction time of this steam is not necessarily limited because it also varies depending on the type and size of the contents F, the content volume of the container body (A), etc., but is, for example, 1 second to 5 minutes, preferably 1 second to 1 minute. If the introduction time of steam is less than 1 second, the amount of energy given to the content F through the steam is not sufficient, and it tends to be difficult to obtain the desired bactericidal effect. If the introduction time of steam exceeds 1 minute, not only the sterilization of the contents F but also the quality itself may be impaired. The sterilization of the contents F is performed in this way.
- the container body (A) 110 containing the sterilized contents F is placed in, for example, a reduced pressure environment, and the steam in the container body (A) 110 is discharged to the outside through the perforations 132. It is preferable to cool the content F (hereinafter, also referred to as step S3(b)). By going through the step S3 (b), the temperature load on the content F and the chance of contact between the content F and water vapor (water) are reduced, and the quality of the content F tends to be prevented from deteriorating.
- step S3 (b) the inside of the container body (A) is filled with sterilized gas (for example, air, nitrogen, carbon dioxide, etc.) (hereinafter, also referred to as step S3 (c)) to obtain normal pressure or It is preferable to use positive pressure.
- sterilized gas for example, air, nitrogen, carbon dioxide, etc.
- step S3 When the inert gas (for example, nitrogen gas, carbon dioxide gas, etc.) is not filled in the step S3 (c), the gas in the container body (A) is subsequently replaced with the inert gas (hereinafter, step S3). (D)) is preferably performed.
- the sterilized gas or the inert gas is introduced into the container body (A) 110 from a part of at least two perforations 132 provided in the layered structure (b-1), for example.
- efficient gas replacement can be performed by discharging from the remaining perforations.
- the sterilization by the introduction of the steam, the decompression after the sterilization, and the filling of the sterilized gas are performed by the short-time cooking sterilizer RIC (manufactured by HISAKA CORPORATION). It is possible to carry out all at once by using such a known device.
- the perforation 132 of the layer structure (b-1) 134 is blocked by the layer structure (b-2) 136. ((S4) in FIG. 5).
- the plurality of perforations 132 are blocked by one layer structure (b-2), but each of the plurality of perforations 132 is blocked by a different layer structure (b-2).
- Such sealing can be performed, for example, by using a labeler or a sealing machine known to those skilled in the art.
- the steam sterilized product can be manufactured through the first manufacturing method of the present invention.
- the steam sterilization product of the present invention can be manufactured using the following second manufacturing method. This will be described with reference to FIG.
- the contents F are placed on the inner surface 114 of the container body (A) 110 having the opening 112 ((S1) in FIG. 7). This is the same as that shown in (S1) of FIG.
- the layer structure (B') 135 is arranged in the opening 112 of the container body (A) 110, and the opening 112 is closed by the layer structure (B') 135 ((S2'(S2'(S2'(S2') in FIG. 7). a))).
- the layered structure (B′) 135 includes a peripheral portion of the opening 112 (for example, the flange portion 120 of the container body (A) 110) and a means known to those skilled in the art such as heat sealing or an adhesive. Is in close contact with. In this state, the inside of the container body (A) 110 is shielded from the outside by the layered structure (B′).
- the inside of the container body (A) 110 can be ventilated from the outside by drilling the layer structure (B') 135 with a plurality of drilling jigs 140 provided on the arm 139. it can.
- the drilling of the layer structure (B') with the drilling jig 140 may be provided by simply piercing the layer structure (B'), or the layer may be provided through an arbitrary heating means (not shown) provided in advance in the drilling jig 140.
- the structure (B') may be melted and provided. In this way, the layer structure (b-1) 134 can be produced in a state of being arranged in advance in the container body (A).
- the container body (A) 110 on which the layer structure (b-1) 134 is arranged is placed in a reduced pressure environment, for example, and the container body (A) is placed through the perforation 132.
- the air inside the 110 may be discharged (degassed) to the outside.
- the content F tends to be prevented from being oxidatively deteriorated and the quality is deteriorated.
- the container body (A) 110 containing the sterilized contents F is placed, for example, in a depressurized environment, and the container body (A) is perforated 132.
- the steam in 110 may be discharged to the outside.
- the inside of the container body (A) 110 may be filled with a sterilized gas (for example, oxygen gas, air, etc.) or an inert gas (for example, nitrogen gas, carbon dioxide gas, etc.) through the perforation 132.
- a sterilized gas for example, oxygen gas, air, etc.
- an inert gas for example, nitrogen gas, carbon dioxide gas, etc.
- sterilization by steam introduction, decompression after sterilization, and gas replacement from deaeration before steam introduction as described above are performed by the short-time cooking sterilizer RIC (Co., Ltd.).
- RIC short-time cooking sterilizer
- a plurality of steam flow passages 122 are formed below the content F.
- the contents F can come into contact with the steam introduced for sterilization in any direction, whether upward, lateral, or downward.
- the contents F can be sterilized more uniformly and efficiently.
- the contents sterilized in this way have a container body (A) and a lid member (B) having excellent gas barrier properties (layer structure (b-1) and (b- 2))
- the product can be marketed as a product having a long-term quality expiration date (for example, expiration date or expiration date) while being contained in).
- Ad -"Pyrene (trademark) film P5562”: manufactured by Toyobo Co., Ltd., biaxially stretched polypropylene film having antifogging property, thickness 20 ⁇ m (hereinafter, may be abbreviated as "OPP1").
- a dispersion liquid was obtained by adding 54.29 parts by mass of distilled water and 18.80 parts by mass of methanol to 22.50 parts by mass of the dispersion liquid thus obtained, and stirring so as to be uniform. Next, while maintaining the liquid temperature at 15° C., 4.41 parts by mass of 85% by mass phosphoric acid aqueous solution was added dropwise while stirring the dispersion liquid, and the mixture was stirred at 15° C. until the viscosity reached 1,500 mPa ⁇ s. Then, the target coating liquid (S-1) was obtained.
- coating liquid (T-1) 67% by mass of the organophosphorus compound (BO-1) obtained above and 33% by mass of polyethylene oxide having a weight average molecular weight of 60,000 (“ALCOX (registered trademark) L-6” manufactured by Meisei Chemical Industry Co., Ltd.)
- Oxygen permeability measurement MOCON INC. Obtained multilayer container and multilayer film using the oxygen permeability measuring device OX-TRAN2 / 20 type (detection limit value 0.0005 cc / pack ⁇ day ⁇ atm and 0.1 cc / m 2 ⁇ day ⁇ atm). The oxygen permeability of each was measured under the conditions of 20° C. and 65% RH in accordance with JIS-K7126-2 (2006) Part 2 (isobaric method).
- the oxygen permeability (cc/cm 3 ⁇ day ⁇ atm) per packaging container unit was calculated by calculating from the sum of the multiplied products and dividing by the volume inside the packaging container. The results are shown in Table 4.
- Example 1 Preparation of multilayer structure (A')) Using EVOH “Eval (trademark) J171B” as the oxygen barrier layer, polypropylene “Novatech (trademark) PP EA7AD” (PP) as the thermoplastic resin layer, and adhesive polyolefin "Admer (trademark) QF500” (Ad) as the adhesion layer.
- Table 1 Example 1 below.
- a temperature controllable take-up roll was placed downstream of an extruder having a film-forming die, and the film was taken up by a take-up machine to obtain a target multilayer structure (A′).
- layered holes having a diameter of 4 mm were formed at a predetermined interval in the layered structure (b-1) on the container body (A).
- the drilled container is placed in a processing tank of "Short-time cooking sterilizer RIC" (hereinafter, simply referred to as RIC) manufactured by Hisaka Works Co., Ltd., and the RIC is operated to reduce the pressure in the processing tank. By doing so, the inside of the container body (A) was degassed through perforation.
- steam at 125 ° C. was introduced into the container body (A) through perforation to sterilize the food over 10 seconds.
- an aluminum tape “No.8063” manufactured by Maxell Co., Ltd. (aluminum layer 50 ⁇ m, adhesive layer 50 ⁇ m (hereinafter sometimes abbreviated as “aluminum”)) was used.
- a steam sterilized sample was obtained by blocking all the perforations on the layer structure (b-1).
- Examples 2 to 16, 18 and 19 For the multilayer structure (A′), the container body (A), the layer structure (b-1) and the layer structure (b-2) produced in Example 1, as described in Tables 2 and 3, respectively. Except that one or more of the contents, the type and thickness of the layer constitution, the type of the oxygen barrier layer, the appearance of the container body (A) and the height of the protrusion, and the hole diameter and the number of holes are changed. In the same manner as in Example 1, a steam sterilized sample was obtained.
- Example 17 When the layer structure (b-1) and the layer structure (b-2) shown in Table 3 are used and the perforations of the layer structure (b-1) are blocked with the layer structure (b-2), A steam sterilized sample was obtained in the same manner as in Example 1 except that the OPP2 side of the layered structure (b-2) was heat-sealed so as to cover the entire layered structure (b-1). As the layer structure (b-2), the same layer structure (b-1) as in Example 1 was used.
- Example 1 a container body having a flat container bottom without protrusions (other dimensions are the same as the container body (A) used in Example 1)
- a steam sterilized sample was obtained in the same manner as in Example 1 except that it was used.
- the measurement of the gas composition in the sample container, the number of general bacteria (aerobic bacteria), water contact angle, appearance characteristics, food color, food odor, food taste are evaluated respectively. did. The results obtained are shown in Table 4.
- Example 2 The same procedure as in Example 1 was repeated except that the layer structure (b-1) produced in Example 1 was replaced with the layer structure (b-1) in which the number of perforations was reduced to one. A steam sterilized sample was obtained.
- the measurement of the gas composition in the sample container, the number of general bacteria (aerobic bacteria), water contact angle, appearance characteristics, food color, food odor, food taste are evaluated respectively. did. The results obtained are shown in Table 4.
- the packaging containers used for the steam sterilization samples prepared in Examples 1 to 19 all have excellent oxygen permeability, and have appropriate gas barrier properties for the packaging containers. I was able to grant it.
- the steam sterilized samples produced in Examples 1 to 19 were compared with the sample of Comparative Example 1 using the container body (A) having no protruding portion (that is, the steam circulation portion), and after 15 days. The outbreak of aerobic bacteria was significantly reduced, and the sterilized state of the food content could be maintained for a longer period of time.
- the foods contained in the steam sterilized samples prepared in Examples 1-19 retain good or superior quality in all of color, odor, and taste, as compared to, for example, those described in Comparative Examples 1-3. I can see that I was able to do it. Further, in Examples 1 to 13, 15, 16, 18 and 19 using the antifogging film, the inside of the lid material is not fogged even after being stored at a low temperature (10 ° C.) for 15 days, and a good appearance is maintained. You can see that you can do it.
- the contents can be sterilized more uniformly, and the sterilized state of the contents can be maintained for a longer period of time.
- the packaging container of the present invention is useful in the fields of food, cosmetics, pharmaceuticals, for example, where sterilization of contents and improvement of storage period are desired.
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Abstract
Description
[1]開口部、および内容物を収容可能な内表面を含む容器本体(A)と、該容器本体(A)の該開口部を覆う蓋材(B)とを備える包装容器であって、該容器本体(A)が、該内表面上に、該内容物と該内表面との間を蒸気が流通可能な蒸気流通部を備え、かつ少なくとも1層の酸素バリア層(a)を含む多層構造体(A’)から構成されており、該蓋材(B)が、少なくとも2個の穿孔を有する層構造体(b-1)と、該層構造体(b-1)の外表面に配置されておりかつ該穿孔を封鎖する層構造体(b-2)とを備え、該層構造体(b-1)および該層構造体(b-2)のうちの少なくとも1つが酸素バリア層(b)を含む、包装容器;
[2]前記蓋材(B)における前記酸素バリア層(b)が、エチレン-ビニルアルコール共重合体、リンおよび多価金属元素を含む複合構造体、加工デンプン、ポリアミド、ポリエステル、ポリ塩化ビニリデン、アクリロニトリル共重合体、ポリフッ化ビニリデン、ポリクロロトリフルオロエチレン、ポリビニルアルコール、無機層状化合物、無機蒸着層、および金属箔からなる群から選択される少なくとも1つを含む、[1]の包装容器;
[3]前記蓋材(B)の内側を構成する面における、JIS R3257に準拠して測定される水接触角が70°以下である、[1]または[2]の包装容器;
[4]前記蓋材(B)における前記層構造体(b-1)の前記穿孔が1mm以上20mm以下の直径を有する、[1]~[3]のいずれかの包装容器;
[5]前記蓋材(B)が、前記層構造体(b-1)と前記層構造体(b-2)との間に粘着層を備える、[1]~[4]のいずれかの包装容器;
[6]前記容器本体(A)における前記酸素バリア層(a)が、エチレン-ビニルアルコール共重合体、リンおよび多価金属元素を含む複合構造体、加工デンプン、ポリアミド、ポリエステル、ポリ塩化ビニリデン、アクリロニトリル共重合体、ポリフッ化ビニリデン、ポリクロロトリフルオロエチレン、ポリビニルアルコール、無機層状化合物、無機蒸着層、および金属箔からなる群から選択される少なくとも1種の化合物を含有する、[1]~[5]のいずれかの包装容器;
[7][1]~[6]のいずれかの包装容器に用いられる容器本体(A)であって、開口部、および内容物を収容可能な内表面を含み、該内表面上に、該内容物と該内表面との間を蒸気が流通可能な蒸気流通部を備え、かつ少なくとも1層の酸素バリア層(a)を含む多層構造体(A’)から構成されており、該内表面が、容器底部(a1)および該容器底部(a1)の周縁から上方に延びる容器側壁部(a2)により構成されており、該蒸気流通部が該開口部と連通する、容器本体(A);
[8][1]~[6]のいずれかに記載の包装容器に用いられる多層構造体(A’)であって、酸素バリア層(a)がエチレン-ビニルアルコール共重合体、ポリアミド、および加工デンプンからなる群から選択される少なくとも1つを含む、多層構造体(A’);
[9][1]~[6]のいずれかの包装容器を構成する層構造体(b-1)に用いられる層構造体(B’)であって、少なくとも1層の酸素バリア層(b)を備え、少なくとも一方の最外層に180℃以下の融点を有するシーラント層を備える、層構造体(B’);
[10]20℃かつ65%RHにおける酸素バリア性が10cc/(m2・day・atm)以下である[9]の層構造体(B’);
[11]突き刺し強度が10Nから40Nである、[9]または[10]の層構造体(B’);
[12]前記酸素バリア層(b)が、エチレン-ビニルアルコール共重合体、リンおよび多価金属元素を含む複合構造体、加工デンプン、ポリアミド、ポリエステル、ポリ塩化ビニリデン、アクリロニトリル共重合体、ポリフッ化ビニリデン、ポリクロロトリフルオロエチレン、ポリビニルアルコール、無機層状化合物、無機蒸着層、および金属箔からなる群から選択される少なくとも1つを含む、[9]~[11]のいずれかの層構造体(B’);
[13][9]~[12]のいずれかに記載の層構造体(B’)に少なくとも2個の穿孔を備える、層構造体(b-1);
[14]前記酸素バリア層(b)が、エチレン-ビニルアルコール共重合体、リンおよび多価金属元素を含む複合構造体、加工デンプン、ポリアミド、ポリエステル、ポリ塩化ビニリデン、アクリロニトリル共重合体、ポリフッ化ビニリデン、ポリクロロトリフルオロエチレン、ポリビニルアルコール、無機層状化合物、無機蒸着層、および金属箔からなる群から選択される少なくとも1つを含む、[13]の層構造体(b-1);
[15][1]~[6]のいずれかに記載の包装容器と蒸気殺菌された内容物とを備える、蒸気殺菌製品であって、該包装容器を構成する容器本体(A)の内表面に該内容物が収容されており、該容器本体(A)と該包装容器を構成する蓋材(B)とが密閉されている、蒸気殺菌製品;
[16]前記容器本体(A)と前記蓋材(B)とで包囲される領域の酸素濃度が5体積%以下である、[15]の蒸気殺菌製品;
[17]前記容器本体(A)と前記蓋材(B)とで包囲される領域の二酸化炭素濃度が0.5体積%以上40体積%以下である、[15]または[16]の蒸気殺菌製品;
[18]前記蒸気殺菌された内容物が食品である、[15]~[17]のいずれかの蒸気殺菌製品;
[19]前記内容物が食品であり、該内容物を蒸気殺菌するために用いられる、[1]~[6]のいずれかの包装容器;
を提供することにより達成される。
まず、本発明の包装容器の外観的特徴について図面を用いて説明する。
図2は、図1に示す包装容器を構成する容器本体(A)110の断面図である。
再び図1の(a)を参照すると、本発明の包装容器100において、容器本体(A)110は複数の層が積層してなる多層構造体(A’)から構成されている。
EVOHは、例えば、エチレン-ビニルエステル共重合体をケン化することにより得ることができる。エチレン-ビニルエステル共重合体の製造およびケン化は、公知の方法により行うことができる。当該方法に用いることができるビニルエステルとしては、酢酸ビニル、ギ酸ビニル、プロピオン酸ビニル、ピバリン酸ビニル、およびバーサティック酸ビニル等の脂肪酸ビニルエステルが挙げられる。
リンおよび多価金属元素を含む複合構造体は、リン化合物と多価金属の化合物とが反応することにより形成されるバリア層を有する。この構造体は、リン化合物を含む溶液と多価金属の化合物を含む溶液または分散液とを混合してコーティング剤を調製し、当該コーティング剤を基材上に塗布し、多価金属の化合物とリン化合物とを反応させることにより形成され得る。ここで、上記多価金属原子をMで表すと、多価金属原子Mとリン原子との間にはM-O-Pで表される結合が形成される。M-O-P結合は赤外吸収スペクトルにおける特性吸収帯が1080cm-1~1130cm-1の領域に観察することができ、当該複合構造体の赤外吸収スペクトルにおいて、800cm-1~1400cm-1の領域における最大吸収波数は1080cm-1~1130cm-1の範囲にあることが好ましい。複合構造体の最大吸収波数が上記範囲内にあると、当該複合構造体は優れた酸素バリア性を有する傾向にある。
加工デンプンの原料となるデンプンとしては特に限定されず、例えば、コムギ、トウモロコシ、タピオカ、ジャガイモ、コメ、エンバク、アロールート、およびエンドウ原料に由来するものが挙げられる。デンプンとしては、ハイアミロースデンプンが好ましく、ハイアミローストウモロコシデンプン、およびハイアミロースタピオカデンプンがより好ましい。
無機層状化合物を含むバリア層は、例えば熱可塑性樹脂中に無機層状化合物が分散していると無機層状化合物に起因するバリア性を発現する層である。無機層状化合物を含むバリア層に用いられる熱可塑性樹脂は特に限定されず、例えばポリアミド、エチレン-ビニルアルコール共重合体等が挙げられる。
無機蒸着層は、例えば基材上に無機物を蒸着して得られるバリア層である。無機蒸着層を構成し得る基材としては、例えば熱可塑性樹脂、熱硬化性樹脂等の樹脂;布帛、紙類等の繊維集合体;木材;ガラス等が挙げられる。熱可塑性樹脂および繊維集合体が好ましく、熱可塑性樹脂がより好ましい。基材が上記樹脂で構成される場合、その形態は、フィルムまたはシート等の層状を有していることが好ましい。
金属箔は、展延性に優れた金属から構成される単層または複層の構造体である。金属箔に含まれる金属としては、例えばアルミニウムが挙げられる。当該金属箔は、例えばアルミ箔またはアルミテープの形態を有する。
本発明において、多層構造体(A’)は少なくとも1層の熱可塑性樹脂層を含んでいてもよい。
上記熱可塑性樹脂層は、本発明の目的を損なわない範囲で添加剤を含んでいてもよい。添加剤としては、上記熱可塑性樹脂以外の樹脂、熱安定剤、紫外線吸収剤、酸化防止剤、着色剤、フィラー等が挙げられる。熱可塑性樹脂層が添加剤を含む場合、添加剤の含有率は熱可塑性樹脂層の総量に対して20質量%以下が好ましく、10質量%以下がより好ましく、5質量%以下がさらに好ましい。
本発明において、多層構造体(A’)は少なくとも1層の接着層(以下、「Ad」と略記する場合がある。)を含んでいてもよい。
再び図1の(b)を参照すると、本発明の包装容器100の蓋材(B)130を構成する層構造体(b-1)134と層構造体(b-2)136とは、当該層構造体(b-2)136が層構造体(b-1)134に設けられた穿孔132のすべてを封鎖するように配置されている。本発明において、層構造体(b-1)134および層構造体(b-2)136のうちのいずれかまたは両方は酸素バリア層(b)を含む。
層構造体(b-1)に設けられた穿孔は、層構造体(b-1)の表裏を貫通し、層構造体(b-1)上に好ましくは2個以上、より好ましくは4個以上、さらに好ましくは6個以上設けられている。本発明において、穿孔は、後述の蒸気殺菌の際の容器本体(A)内部の空気を排出し、さらに蒸気を流入かつ排出して効率的な殺菌を行うために設けられている。穿孔はまた、殺菌後に包装容器内の酸素を窒素置換するためにも使用され得る。
層構造体(B’)は、上記層構造体(b-1)に対して穿孔を設ける前の単層または多層の構造体である。層構造体(B’)はまた、容器本体(A)内に収容された内容物を容易に視認することができるという点で透明または半透明であることが好ましい。
層構造体(b-2)は、単層または多層の構造体である。層構造体(b-2)はまた、容器本体(A)内に収容された内容物を容易に視認することができるという点で透明または半透明であってもよい。
本発明の蒸気殺菌製品は、上記包装容器および蒸気殺菌された内容物を備える。具体的には、本発明の蒸気殺菌製品において、上記包装容器を構成する容器本体(A)の内表面に殺菌された内容物が収容されており、容器本体(A)の開口部が、当該包装容器を構成する蓋材(B)で密閉されている。
本発明の蒸気殺菌製品の製造方法は、(S1)開口部、および内容物を収容可能な内表面を含む容器本体(A)内に内容物を配置する工程;(S2)該容器本体(A)の該開口部に少なくとも2個の穿孔を有する層構造体(b-1)を配置して、該開口部を該層構造体(b-1)で封鎖する工程;(S3)該層構造体(b-1)の該穿孔を通じて該容器本体(A)の該内表面に蒸気を流通させて、該内容物を殺菌する工程;(S4)該層構造体(b-1)の該穿孔を、層構造体(b-2)で封鎖する工程をこの順で包含することが好ましい。
(1)EVOH
・「エバール(商標)J171B」:株式会社クラレ製、エチレン単位含有量32モル%
・「エバール(商標)E105B」:株式会社クラレ製、エチレン単位含有量44モル%
・「エバール(商標)G156B」:株式会社クラレ製、エチレン単位含有量48モル%
・「エバール(商標)フィルム EF-XL」:株式会社クラレ製、二軸延伸EVOHフィルム、厚み12μm
(2)加工でんぷん
・「Plantic(商標) E」:株式会社クラレ製(PE/Ad/バリア/Ad/PEの層構成を有するフィルム)
(3)ナイロン
・「MXナイロン S6007」:三菱ガス化学株式会社
(4)リンおよび多価金属元素を含む複合構造体
・以下の製造例1で作製したものを使用した
(5)その他の材料
・「ノバテック(商標)PP EA7AD」:日本ポリプロ株式会社製、ポリプロピレン(以下、「PP」と略記する場合がある。)
・「アドマー(商標)QF500」:三井化学社製、接着性ポリオレフィン(以下「Ad」と略記する場合がある。)
・「パイレン(商標)フィルムP5562」:東洋紡株式会社製、防曇性を有する二軸延伸ポリプロピレンフィルム、厚み20μm(以下「OPP1」と略記する場合がある。)
・「OP U-1」:三井化学東セロ株式会社製、二軸延伸ポリプロピレンフィルム、厚み20μm(以下、「OPP2」と略記する場合がある。)
・「タケラック(商標)A-385」:武田薬品工業株式会社製、二液系接着剤
・「タケネート(商標)A-10」:武田薬品工業株式会社製、二液系接着剤
・「エンブレム(商標)ONBC-15」:ユニチカ株式会社製、延伸ナイロンフィルム、厚み15μm(以下、「ONY」と略記する場合がある。)
(コーティング液(S-1)の調製)
蒸留水230質量部を撹拌しながら70℃に昇温した。その蒸留水に、トリイソプロポキシアルミニウム88質量部を1時間かけて滴下し、液温を徐々に95℃まで上昇させ、発生するイソプロパノールを留出させることによって加水分解縮合を行った。得られた液体に、60質量%の硝酸水溶液4.0質量部を添加し、95℃で3時間撹拌することによって加水分解縮合物の粒子の凝集体を解膠させた。その後、その液体を、固形分濃度が酸化アルミニウム換算で10質量%になるように濃縮した。こうして得られた分散液22.50質量部に対して、蒸留水54.29質量部およびメタノール18.80質量部を添加し、均一になるように撹拌することによって、分散液を得た。次いで、液温を15℃に維持した状態で分散液を撹拌しながら85質量%のリン酸水溶液4.41質量部を滴下による添加し、粘度が1,500mPa・sになるまで15℃で撹拌を続け、目的のコーティング液(S-1)を得た。コーティング液(S-1)における、アルミニウム原子とリン原子とのモル比は、アルミニウム原子:リン原子=1.15:1.00であった。
窒素雰囲気下にて、ビニルホスホン酸10gおよび2,2’-アゾビス(2-アミジノプロパン)2塩酸塩0.025gを水5gに溶解させ、80℃で3時間撹拌した。冷却後、重合溶液に水15gを添加して希釈し、セルロース膜(スペクトラムラボラトリーズ社製Spectra/Por(登録商標))を用いてろ過した。ろ液中の水を留去した後、50℃で24時間真空乾燥して、有機リン化合物(BO-1;ポリ(ビニルスルホン酸))を得た。GPC分析の結果によれば、有機リン化合物(BO-1)の数平均分子量はポリエチレングリコール換算で10,000であった。
上記で得られた有機リン化合物(BO-1)67質量%と、重量平均分子量60,000のポリエチレンオキサイド(明成化学工業株式会社製「アルコックス(登録商標) L-6」)33質量%とを含む混合物を調製した。この混合物を、水とメタノールとの混合溶媒(質量比で水:メタノール=7:3)に溶解させ、固形分濃度が1質量%のコーティング液(T-1)を得た。
まず、基材である延伸ポリエチレンテレフタレートフィルム(東レ株式会社製ルミラー(登録商標) P60;厚さ12μm)上に、乾燥後の厚さが0.3μmとなるようにバーコーターを用いて、上記で調製したコーティング液(S-1)を塗工した。塗工後のフィルムを、110℃で5分間乾燥させた後、160℃で1分間熱処理することによって、基材上に層の前駆体層を形成した。次いで、無機リン化合物(BI)の質量WBIと有機リン化合物(BO)の質量WBOとの比WBO/WBI=1.10/98.90となるようにバーコーターを用いてコーティング液(T-1)を塗工し、110℃で3分間乾燥させた。その後、220℃で1分間熱処理することによって層(Y1-1)を形成した。このようにして、リンおよび多価金属元素を含む複合構造体(多層構造体(B1))を得た。
MOCON INC.製酸素透過度測定装置OX-TRAN2/20型(検出限界値0.0005cc/pck・day・atm、および0.1cc/m2・day・atm)を用いて、得られた多層容器および多層フィルムの酸素透過度を、20℃、65%RHの条件下でJIS-K7126-2(2006年)第2部(等圧法)に準拠してそれぞれ測定した。包装容器の酸素透過度を容器本体(A)の酸素透過度(cc/pck・day・atm)と蓋材(B)の酸素透過度(cc/m2・day・atm)に蓋材面積を掛け合わせたものの合計から算出し、包装容器内側の体積で割ることにより包装容器単位当たりの酸素透過度(cc/cm3・day・atm)を算出した。結果を表4に示す。
MOCON Europe社製 CheckPoint3を用いて包装容器内の酸素濃度を測定した。
得られたサンプルについて、10℃、50%RHにて15日間保管した後の食品衛生検査指針・微生物編(2015年)を準用し、標準寒天培地法(35℃±1℃、48±3時間)にて測定を行なった。
協和界面科学社製 接触角測定試験機 DropMaster500を用いて、JIS R3257に準拠して、得られた層構造体(b-1)の容器内面側の水接触角を測定した。
得られたサンプルを、10℃、50%RHにて15日間保管した後、23℃下に1分保持して外観を目視にて確認し、以下の基準にしたがって判断した。
A :蓋材内側に曇りがない。
B :蓋材内側に曇りがある。
得られたサンプルを、10℃、50%RHにて15日間保管し、その後開封して内部の食品(焼鮭)の着色状況をパネラー5名により目視で確認し、合議により以下の基準にしたがって判断した。
A :保管前とほとんど変わらない。
B :わずかに退色している。
C :かなり退色している。
得られたサンプルを、10℃、50%RHにて15日間保管し、その後開封して内部の食品(焼鮭)の匂いをパネラー5名により確認し、合議により以下の基準にしたがって判断した。
A :保管前とほとんど変わらない。
B :わずかに匂いがしなくなった。
C :ほとんど匂いがしなくなった。
得られたサンプルを、10℃、50%RHにて15日間保管し、その後開封して内部の食品(焼鮭)の味をパネラー5名により確認し、合議により以下の基準にしたがって判断した。
A :保管前とほとんど変わらない。
B :わずかに味がしなくなった。
C :ほとんど味がしなかった。
(多層構造体(A’)の作製)
酸素バリア層としてEVOH「エバール(商標)J171B」、熱可塑性樹脂層としてポリプロピレン「ノバテック(商標)PP EA7AD」(PP)および接着層として接着性ポリオレフィン「アドマー(商標)QF500」(Ad)を用いて、以下の表1に記載の方法/条件にて3種5層(PP/Ad/EVOH/Ad/PP=270μm/15μm/30μm/15μm/270μm)の多層構造体を作製した。なお、製膜にあたっては、製膜ダイを有する押出機の下流に温度制御が可能な引き取りロールを配置し、巻き取り機にて巻き取ることにより目的の多層構造体(A’)を得た。
上記で得られた多層構造体(A’)を熱成形機(株式会社浅野製作所製)を用い、シート温度150℃にて容器形状(縦12cm×横9cm×高さ3cm)に熱成形(圧空:5kg/cm2、プラグ温度:150℃、金型温度:70℃を使用)することにより、図3の(b)に示す外観を有する容器本体(A)を得た。なお、この容器本体(A)の容器底部に設けられた突起部の高さ(外側底部から突起部の頂部までの高さ)は5.0mmであった。本実施例で採用した多層構造体(A’)および本体容器(A)の特徴を表2に示す。
防曇性を有する二軸延伸ポリプロピレンフィルム「パイレン(商標)フィルムP5562」(OPP1)の片面に、二液系接着剤(「タケラック(商標)A-385」/「タケネートA-10」)を固形分2.5g/m2の目付で塗布した後、酸素バリア層として用いる二軸延伸EVOHフィルム「エバール(商標)EF-XL」をドライラミネート法により積層した。次いで、延伸ナイロンフィルム「エンブレム(商標)ONBC-15」を同様の方法で積層し、OPP1/EF-XL/ONYの構成を有する層構造体(b-1)を47μmの厚みで得た。本実施例で採用した層構造体(b-1)の特徴を表3に示す。
エーシンパック社製パックシーラーを用いて、上記で得られた容器本体(A)の内側底部に食品として70gの焼鮭を配置した。その後、容器本体(A)の開口部に上記で得られた層構造体(b-1)のOPP1側を被せ、両者をヒートシールにより密閉した。
実施例1で作製した多層構造体(A’)、容器本体(A)、層構造体(b-1)および層構造体(b-2)に対し、それぞれ表2および3に記載したような内容物、層構成の種類および厚み、酸素バリア層の種類、容器本体(A)の外観および突起部の高さ、ならびに穿孔の孔径および孔数のうちの1つまたはそれ以上を変更したこと以外は、実施例1と同様にして蒸気殺菌サンプルを得た。
表3に記載した層構造体(b-1)および層構造体(b-2)を用い、層構造体(b-1)の穿孔を層構造体(b-2)で封鎖する際に、層構造体(b-1)の全体を覆うように層構造体(b-2)のOPP2側でヒートシールした以外は、実施例1と同様にして蒸気殺菌サンプルを得た。なお、層構造体(b-2)としては、実施例1の層構造体(b-1)と同様のものを用いた。
実施例1で作製した容器本体(A)の代わりに、突起部のない平坦な容器底部を有する容器本体(その他の寸法は、実施例1で使用した容器本体(A)と同様である)を用いたこと以外は、実施例1と同様にして蒸気殺菌サンプルを得た。当該サンプルについて、上述した評価方法に従い、サンプル容器内のガス組成の測定、一般細菌数(好気性菌数)、水接触角、外観特性、食品の色、食品の匂い、食品の味をそれぞれ評価した。得られた結果を表4に示す。
実施例1で作製した層構造体(b-1)の代わりに、穿孔の孔数を1個に減らした層構造体(b-1)を用いたこと以外は、実施例1と同様にして蒸気殺菌サンプルを得た。当該サンプルについて、上述した評価方法に従い、サンプル容器内のガス組成の測定、一般細菌数(好気性菌数)、水接触角、外観特性、食品の色、食品の匂い、食品の味をそれぞれ評価した。得られた結果を表4に示す。
実施例1で作製した多層構造体(A’)および容器本体(A)、ならびに層構造体(b-1)の代わりに、PPのみで構成される多層構造体(A’)および容器本体(A)、ならびに層構造体(b-1)を用いたこと以外は、実施例1と同様にして蒸気殺菌サンプルを得た。当該サンプルについて、上述した評価方法に従い、サンプル容器内のガス組成の測定、一般細菌数(好気性菌数)、水接触角、外観特性、食品の色、食品の匂い、食品の味をそれぞれ評価した。得られた結果を表4に示す。
110,110’,110” 容器本体(A)
112 開口部
114 内表面
116 容器側壁部(a2)
118 容器底部(a1)
120 フランジ部
121 膨出部
122,122’,122” 蒸気流通部
123 尖端部分
124,124’,124” 突起部
126 ブロック
130 蓋材(B)
132 穿孔
134 層構造体(b-1)
135 層構造体(B’)
136 層構造体(b-2)
139 アーム
140 穿孔治具
Claims (19)
- 開口部、および内容物を収容可能な内表面を含む容器本体(A)と、該容器本体(A)の該開口部を覆う蓋材(B)とを備える包装容器であって、該容器本体(A)が、該内表面上に、該内容物と該内表面との間を蒸気が流通可能な蒸気流通部を備え、かつ少なくとも1層の酸素バリア層(a)を含む多層構造体(A’)から構成されており、該蓋材(B)が、少なくとも2個の穿孔を有する層構造体(b-1)と、該層構造体(b-1)の外表面に配置されておりかつ該穿孔を封鎖する層構造体(b-2)とを備え、該層構造体(b-1)および該層構造体(b-2)のうちの少なくとも1つが酸素バリア層(b)を含む、包装容器。
- 前記蓋材(B)における前記酸素バリア層(b)が、エチレン-ビニルアルコール共重合体、リンおよび多価金属元素を含む複合構造体、加工デンプン、ポリアミド、ポリエステル、ポリ塩化ビニリデン、アクリロニトリル共重合体、ポリフッ化ビニリデン、ポリクロロトリフルオロエチレン、ポリビニルアルコール、無機層状化合物、無機蒸着層、および金属箔からなる群から選択される少なくとも1つを含む、請求項1に記載の包装容器。
- 前記蓋材(B)の内側を構成する面における、JIS R3257に準拠して測定される水接触角が70°以下である、請求項1または2に記載の包装容器。
- 前記蓋材(B)における前記層構造体(b-1)の前記穿孔が1mm以上20mm以下の直径を有する、請求項1~3のいずれかに記載の包装容器。
- 前記蓋材(B)が、前記層構造体(b-1)と前記層構造体(b-2)との間に粘着層を備える、請求項1~4のいずれかに記載の包装容器。
- 前記容器本体(A)における前記酸素バリア層(a)が、エチレン-ビニルアルコール共重合体、リンおよび多価金属元素を含む複合構造体、加工デンプン、ポリアミド、ポリエステル、ポリ塩化ビニリデン、アクリロニトリル共重合体、ポリフッ化ビニリデン、ポリクロロトリフルオロエチレン、ポリビニルアルコール、無機層状化合物、無機蒸着層、および金属箔からなる群から選択される少なくとも1種の化合物を含有する、請求項1~5のいずれかに記載の包装容器。
- 請求項1~6のいずれかに記載の包装容器に用いられる容器本体(A)であって、開口部、および内容物を収容可能な内表面を含み、該内表面上に、該内容物と該内表面との間を蒸気が流通可能な蒸気流通部を備え、かつ少なくとも1層の酸素バリア層(a)を含む多層構造体(A’)から構成されており、該内表面が、容器底部(a1)および該容器底部(a1)の周縁から上方に延びる容器側壁部(a2)により構成されており、該蒸気流通部が該開口部と連通する、容器本体(A)。
- 請求項1~6のいずれかに記載の包装容器に用いられる多層構造体(A’)であって、酸素バリア層(a)がエチレン-ビニルアルコール共重合体、ポリアミド、および加工デンプンからなる群から選択される少なくとも1つを含む、多層構造体(A’)。
- 請求項1~6のいずれかに記載の包装容器を構成する層構造体(b-1)に用いられる層構造体(B’)であって、少なくとも1層の酸素バリア層(b)を備え、少なくとも一方の最外層に180℃以下の融点を有するシーラント層を備える、層構造体(B’)。
- 20℃かつ65%RHにおける酸素バリア性が10cc/(m2・day・atm)以下である、請求項9に記載の層構造体(B’)。
- 突き刺し強度が10Nから40Nである、請求項9または10に記載の層構造体(B’)。
- 前記酸素バリア層(b)が、エチレン-ビニルアルコール共重合体、リンおよび多価金属元素を含む複合構造体、加工デンプン、ポリアミド、ポリエステル、ポリ塩化ビニリデン、アクリロニトリル共重合体、ポリフッ化ビニリデン、ポリクロロトリフルオロエチレン、ポリビニルアルコール、無機層状化合物、無機蒸着層、および金属箔からなる群から選択される少なくとも1つを含む、請求項9~11のいずれかに記載の層構造体(B’)。
- 請求項9~12のいずれかに記載の層構造体(B’)に少なくとも2個の穿孔を備える、層構造体(b-1)。
- 前記酸素バリア層(b)が、エチレン-ビニルアルコール共重合体、リンおよび多価金属元素を含む複合構造体、加工デンプン、ポリアミド、ポリエステル、ポリ塩化ビニリデン、アクリロニトリル共重合体、ポリフッ化ビニリデン、ポリクロロトリフルオロエチレン、ポリビニルアルコール、無機層状化合物、無機蒸着層、および金属箔からなる群から選択される少なくとも1つを含む、請求項13に記載の層構造体(b-1)。
- 請求項1~6のいずれかに記載の包装容器と蒸気殺菌された内容物とを備える、蒸気殺菌製品であって、該包装容器を構成する容器本体(A)の内表面に該内容物が収容されており、該容器本体(A)と該包装容器を構成する蓋材(B)とが密閉されている、蒸気殺菌製品。
- 前記容器本体(A)と前記蓋材(B)とで包囲される領域の酸素濃度が5体積%以下である、請求項15に記載の蒸気殺菌製品。
- 前記容器本体(A)と前記蓋材(B)とで包囲される領域の二酸化炭素濃度が0.5体積%以上40体積%以下である、請求項15または16に記載の蒸気殺菌製品。
- 前記蒸気殺菌された内容物が食品である、請求項15~17のいずれかに記載の蒸気殺菌製品。
- 前記内容物が食品であり、該内容物を蒸気殺菌するために用いられる、請求項1~6のいずれかに記載の包装容器。
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Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH099937A (ja) | 1995-06-26 | 1997-01-14 | Hisaka Works Ltd | 食材の殺菌方法 |
JPH0976339A (ja) * | 1995-09-14 | 1997-03-25 | Tokuyama Corp | ポリプロピレン蓋 |
JP2012143215A (ja) * | 2011-01-14 | 2012-08-02 | S & B Foods Inc | 食品製造および貯蔵用容器、食品の製造法および食品 |
JP2014043276A (ja) * | 2011-12-09 | 2014-03-13 | Osaka Sealing Printing Co Ltd | 包装材及び包装体 |
JP2015020782A (ja) * | 2013-07-19 | 2015-02-02 | 凸版印刷株式会社 | 蓋材 |
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JP4380979B2 (ja) * | 2002-11-13 | 2009-12-09 | 株式会社クラレ | 樹脂組成物及び多層構造体 |
JP2008068574A (ja) * | 2006-09-15 | 2008-03-27 | Kureha Corp | 包装材料及びその製造方法 |
JP4910958B2 (ja) * | 2007-09-14 | 2012-04-04 | 三菱瓦斯化学株式会社 | 加熱殺菌処理食品の保存方法 |
RU2561268C1 (ru) * | 2014-07-23 | 2015-08-27 | Общество с ограниченной ответственностью "Твердь" | Способ стерилизации пищевого продукта |
KR20170064451A (ko) * | 2015-12-01 | 2017-06-09 | 아사히 가세이 홈 프로덕츠 가부시키가이샤 | 식품 보존용 용기 |
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Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH099937A (ja) | 1995-06-26 | 1997-01-14 | Hisaka Works Ltd | 食材の殺菌方法 |
JPH0976339A (ja) * | 1995-09-14 | 1997-03-25 | Tokuyama Corp | ポリプロピレン蓋 |
JP2012143215A (ja) * | 2011-01-14 | 2012-08-02 | S & B Foods Inc | 食品製造および貯蔵用容器、食品の製造法および食品 |
JP2014043276A (ja) * | 2011-12-09 | 2014-03-13 | Osaka Sealing Printing Co Ltd | 包装材及び包装体 |
JP2015020782A (ja) * | 2013-07-19 | 2015-02-02 | 凸版印刷株式会社 | 蓋材 |
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KR20210137094A (ko) | 2021-11-17 |
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