WO2021039822A1 - 容器 - Google Patents

容器 Download PDF

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Publication number
WO2021039822A1
WO2021039822A1 PCT/JP2020/032128 JP2020032128W WO2021039822A1 WO 2021039822 A1 WO2021039822 A1 WO 2021039822A1 JP 2020032128 W JP2020032128 W JP 2020032128W WO 2021039822 A1 WO2021039822 A1 WO 2021039822A1
Authority
WO
WIPO (PCT)
Prior art keywords
container
polyethylene terephthalate
terephthalate resin
resin
base material
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2020/032128
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
中川　圭一
石田　義一
裕也 藤原
悠介 齋藤
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toyo Aluminium Ekco Products Co Ltd
Original Assignee
Toyo Aluminium Ekco Products Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Toyo Aluminium Ekco Products Co Ltd filed Critical Toyo Aluminium Ekco Products Co Ltd
Priority to JP2021542953A priority Critical patent/JP7671690B2/ja
Priority to PCT/JP2021/007147 priority patent/WO2022044377A1/ja
Priority to CN202180057586.3A priority patent/CN116096647A/zh
Priority to JP2022545279A priority patent/JP7791824B2/ja
Publication of WO2021039822A1 publication Critical patent/WO2021039822A1/ja
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/10—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of paper or cardboard
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D3/00—Rigid or semi-rigid containers having bodies or peripheral walls of curved or partially-curved cross-section made by winding or bending paper without folding along defined lines
    • B65D3/22—Rigid or semi-rigid containers having bodies or peripheral walls of curved or partially-curved cross-section made by winding or bending paper without folding along defined lines with double walls; with walls incorporating air-chambers; with walls made of laminated material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D65/00—Wrappers or flexible covers; Packaging materials of special type or form
    • B65D65/38—Packaging materials of special type or form
    • B65D65/40—Applications of laminates for particular packaging purposes

Definitions

  • the present invention relates to a container, and more particularly to a container used as a paper cup, a case, etc. for storing beverages, foods, etc.
  • Japanese Patent No. 4750909 discloses a container using homopolyethylene terephthalate (PET) as a resin.
  • Japanese Patent No. 5680917 discloses a container using a copolymerized PET resin (copolymerization component ratio is 10 mol% to 40 mol%) as a resin.
  • Homo PET as used in Japanese Patent No. 4750909 has a relatively high melting point of about 255 ° C., and the extrusion temperature of the resin is required to uniformly form a film on the surface of a paper substrate by extrusion lamination. It is necessary to extrude at a high temperature exceeding 310 ° C.
  • PET resin is prone to hydrolysis under high temperature conditions. Therefore, it is often assumed that a homo-PET resin having a high melting point originally has higher heat resistance, but if the extrusion temperature is too high, a part of the PET resin on the surface of the container formed after extrusion lamination will be hydrolyzed. As a result, the heat resistance of the portion and the container as a whole is lowered.
  • the copolymerized PET resin of Japanese Patent No. 5680917 has a relatively low melting point of 230 ° C. or lower, the extrusion temperature of the resin can be suppressed to a low level, and hydrolysis under high temperature conditions is less likely to occur. The decrease in adhesion to the paper during extrusion to the paper surface can be reduced.
  • the melting point is as low as 230 ° C. or lower, the heat resistance of the container after molding is inferior.
  • the container is also required to have high heat resistance because the container becomes hot even when it is distributed to the market as a food product after being packaged through a baking process and is heated by a general consumer for eating.
  • the container of Japanese Patent No. 5680917 which is inferior in heat resistance, could not sufficiently satisfy such a requirement.
  • the present invention has been made to solve the above problems, and an object of the present invention is to provide a container having high adhesion between a base material layer and a resin layer and high heat resistance.
  • the container in the first aspect of the present invention comprises a base material layer made of paper and a resin layer laminated on at least one surface of the base material layer and made of a copolymerized polyethylene terephthalate resin.
  • the copolymerized polyethylene terephthalate resin is a copolymerized polyethylene terephthalate resin obtained by copolymerization with isophthalic acid, and is a copolymer of isophthalic acid in the copolymerized polyethylene terephthalate resin.
  • the polymerization ratio is 1 mol% or more and less than 10 mol%.
  • the container has high adhesion between the base material layer and the resin layer and high heat resistance.
  • the container in the second aspect of the present invention has a melting point of 235 ° C. or higher and 250 ° C. or lower in the copolymerized polyethylene terephthalate resin in the configuration of the invention in the first aspect.
  • the melting point is within a suitable numerical range.
  • the container in the third aspect of the present invention has a resin layer adhesion to the base material layer of 4N / 50 mm or more in the configuration of the invention in the first aspect or the second aspect.
  • the container in the fourth aspect of the present invention has an isophthalic acid copolymerization ratio of 1.5 mol% or more in the copolymerized polyethylene terephthalate resin in the constitution of the invention in any of the first to third aspects. It is 2.2 mol% or less.
  • the container according to the fifth aspect of the present invention is the composition of the invention according to any one of the first to fourth aspects, wherein the copolymerized polyethylene terephthalate resin is of biological origin having a biobase carbon content of 5% or more. It is a biomass polyethylene terephthalate resin.
  • the container according to the sixth aspect of the present invention includes a bottom portion and a side wall portion rising from the peripheral edge of the bottom portion in the configuration of the invention in any one of the first to fifth aspects. It is connected by heat bonding.
  • the container in the seventh aspect of the present invention is formed by press molding or bending molding of a single base paper obtained from a composite base material in the constitution of the invention in any of the first to fifth aspects. It is an invention.
  • the container becomes a press-molded product or a bent-molded product.
  • the container in the first aspect of the present invention is a container having high adhesion between the base material layer and the resin layer and high heat resistance, so that it is possible to prevent molding defects of the container and also to prevent molding defects. It is also suitable for use when the contents become hot or undergo a firing process.
  • the container in the second aspect of the present invention has a melting point within a suitable numerical range, so that the adhesion between the base material layer and the resin layer and the heat resistance of the container are improved. It becomes suitable.
  • the container in the third aspect of the present invention has favorable adhesion in addition to the effects of the invention in the first or second aspect, so that molding defects of the container can be suitably prevented.
  • the adhesion between the base material layer and the resin layer and the heat resistance of the container are more preferable. Therefore, it is more convenient to use.
  • the container in the fifth aspect of the present invention is sustainable because, in addition to the effect of the invention in any of the first to fourth aspects, the amount of fossil resource-derived material used can be reduced and the carbon neutrality is improved. The possibility is improved and it helps to protect the environment.
  • the container in the sixth aspect of the present invention was stably molded because the bottom portion and the side wall portion were firmly adhered to each other in addition to the effect of the invention in any of the first to fifth aspects. It becomes a container.
  • the container in the seventh aspect of the present invention is stably molded because the container is a press-molded product or a bent molded product in addition to the effects of the invention in any of the first to fifth aspects. It becomes a container.
  • FIG. 5 is an enlarged cross-sectional view of the “X” portion shown in FIG. It is sectional drawing which shows the whole structure of the container of the 2nd Embodiment of this invention.
  • FIG. 1 is a cross-sectional view showing the entire structure of the container according to the first embodiment of the present invention
  • FIG. 2 is an enlarged cross-sectional view of the “X” portion shown in FIG.
  • the container 1 is mainly composed of a bottom portion 2 and a side wall portion 3 rising from the peripheral edge of the bottom portion 2.
  • the side wall portion 3 is made of a base material layer 10 made of paper and a copolymerized polyethylene terephthalate resin laminated on the inner side (the surface in the direction in which the contents are stored) of the base material layer 10. It is composed of a composite base material 7 provided with a resin layer 11.
  • the bottom portion 2 is also made of a composite base material 7 having the same structure as the side wall portion 3, and the bottom portion 2 and the side wall portion 3 are connected by heat adhesion. Specifically, after punching a side wall member (expanded shape of the side wall portion 3) and a bottom surface member (expanded shape of the bottom portion 2) having a predetermined shape from the composite base material 7, the ends of both members are known to be thermally bonded to each other.
  • the container shape is formed by adhering by the method of.
  • the copolymerized polyethylene terephthalate resin in the present invention is a copolymerized polyethylene terephthalate resin obtained by copolymerization with isophthalic acid (IPA), and the copolymerization ratio of isophthalic acid in the copolymerized polyethylene terephthalate resin is 1 mol% or more. It is less than 10 mol%.
  • IPA isophthalic acid
  • the container has high adhesion between the base material layer 10 and the resin layer 11 and high heat resistance, so that it is possible to prevent molding defects in the container 1 and the contents become hot. It is also suitable for use in cases and when undergoing a firing process.
  • the copolymerization ratio of isophthalic acid is preferably 1.5 mol% or more and 8 mol% or less, and more preferably 1.5 mol% or more and 2.2 mol% or less. In this way, the effects of improving adhesion and heat resistance are more preferably compatible.
  • a polyethylene terephthalate resin is obtained by polycondensing an acid component containing terephthalic acid as a main component and a glycol component containing ethylene glycol as a main component, but the copolymerized polyethylene terephthalate resin used in the present invention has an acid component.
  • a copolymerized polyethylene terephthalate resin can be obtained by containing isophthalic acid in addition to terephthalic acid and copolymerizing this isophthalic acid at a predetermined ratio. It should be noted that other acid components may be contained as long as the effects of the present invention are not impaired, and the glycol component may also contain a component such as diethylene glycol in addition to ethylene glycol. Further, as the copolymerized polyethylene terephthalate resin used in the present invention, a plurality of polyethylene terephthalate resins having different copolymerization ratios are mixed and adjusted to a predetermined copolymerization ratio suitable for the present invention.
  • the present invention may be prepared by mixing a homopolyethylene terephthalate resin and a copolymerized polyethylene terephthalate resin in a predetermined ratio to adjust the copolymerization ratio suitable for the present invention, or by mixing polyethylene terephthalate resins having different copolymerization ratios in a predetermined ratio. It is also possible to use a product adjusted to a predetermined copolymerization ratio suitable for the above.
  • the copolymerization ratio of isophthalic acid can be calculated by subjecting the copolymerized polyethylene terephthalate resin to qualitative / quantitative analysis by 1 H-NMR spectrum measurement.
  • the composition ratio (molar ratio) of each monomer unit in the copolymerized polyethylene terephthalate resin is calculated from the area ratio, and the "isophthalic acid monomer unit molar ratio" to the "total of the terephthalic acid monomer unit molar ratio and the isophthalic acid monomer unit molar ratio". It can be obtained by calculating the ratio (%) of.
  • the copolymerized polyethylene terephthalate resin in the present invention preferably has a melting point of 235 ° C. or higher and 250 ° C. or lower.
  • the melting point is within a suitable numerical range, and the melting point itself is sufficiently high while keeping the extrusion temperature at the time of extrusion lamination relatively low. Therefore, the base material layer 10 and the resin layer 11 are combined. Adhesion and heat resistance of the container 1 are preferable.
  • the melting point can be measured by differential scanning calorimetry (DSC).
  • the adhesion of the resin layer 11 to the base material layer 10 in the present invention is preferably 4N / 50 mm or more.
  • the adhesiveness becomes preferable, so that molding defects of the container 1 can be preferably prevented.
  • the adhesion can be measured by the measuring method in the examples described later.
  • the polyethylene terephthalate resin in the present invention is preferably a biomass polyethylene terephthalate resin derived from a living organism (derived from a biomass resource) having a biobase carbon content of 5% or more.
  • the polyethylene terephthalate resin is a resin obtained by polycondensing ethylene glycol and terephthalic acid as main components, and most of them (the above-mentioned Japanese Patent No. 4750909 and Japanese Patent No. 5680917). ) Is derived from fossil resources.
  • a biomass polyethylene terephthalate resin obtained from a biological raw material such as sugar cane the amount of fossil resource-derived material used can be reduced and carbon neutrality is improved, which improves sustainability and contributes to environmental conservation.
  • the biobase carbon content which is an index indicating the proportion of the biological raw material in the copolymerized polyethylene terephthalate resin, is preferably 5% or more, and more preferably 15% or more.
  • the higher the bio-based carbon content the smaller the proportion of fossil resource-derived raw materials, making the container useful for environmental conservation.
  • the proportion of the biobase carbon content increases, so that it is more preferably within an appropriate range.
  • the bio-based carbon content can be indicated by the value of the C14 content obtained by the radiocarbon (C14) measurement method conforming to ISO-16620-2 (equivalent to the ASTM-D6866 standard).
  • the biobase carbon content can be calculated by the following formula.
  • FIG. 3 is a cross-sectional view showing the entire structure of the container according to the second embodiment of the present invention.
  • the container 21 according to the second embodiment of the present invention has basically the same configuration as the container 1 according to the first embodiment described above, the differences will be mainly described below.
  • the container 21 is formed by press molding a single base paper obtained from the composite base material 27 (similar to the composite base material 7 in the first embodiment described above). Is. Specifically, a container 21 having a bottom portion 22 and a side wall portion 23 rising from the peripheral edge of the bottom portion 22 is formed by punching a sheet of base paper having a predetermined shape obtained from the composite base material 27 and then press-molding the base paper. Will be done.
  • the container according to the third embodiment is determined by bending a single base paper obtained from the composite base material (similar to the composite base material 7 in the first embodiment described above). It is formed by molding into the shape of a container. Specifically, the bottom and the bottom are formed by punching out a sheet of base paper having a predetermined shape obtained from the composite base material and then bending the base paper so as to form a side wall portion that rises from the periphery of the bottom and the bottom.
  • a container is configured with a side wall that rises from the periphery of the.
  • the container according to each embodiment of the present invention can be used for various purposes, and the use is not limited, but can be used, for example, for storing food. Further, it is particularly suitable for storing foods that are heated under high temperature conditions after filling the container with foods. Specifically, it can be used even under high-temperature heating conditions of 100 ° C. or higher, and can be rephrased as a heat-resistant paper container. It can also be used for cooking in an oven (including a toaster, grill, etc.) at 200 ° C. or higher.
  • the composition of the paper constituting the composite base material is not particularly limited, and pure white roll paper, kraft paper, parchment paper, ivory paper, depending on the desired application. , Manila paper, card paper, cup paper and the like can be used.
  • the basis weight of the paper is preferably 150 g / m 2 to 500 g / m 2.
  • the method of laminating the polyethylene terephthalate resin on paper is not particularly limited, and extrusion lamination, thermal lamination, dry lamination, wet lamination and the like can be exemplified.
  • extrusion lamination because it is suitable for mass production, is excellent in terms of cost, and can be directly laminated without using an anchor coat or the like.
  • the thickness of the resin layer is not particularly limited, but is preferably 6 ⁇ m to 50 ⁇ m. Within this range, the container can be imparted with desired heat resistance. Further, when the resin layers of the composite base material are heat-bonded to each other in container molding, the temperature of the resin can be easily raised uniformly, and the adhesion can be made uniform. Further, it is possible to suppress the occurrence of tunneling and pinholes in the resin layer during thermal adhesion.
  • the resin layer is formed on the inner side of the base material layer, but it suffices if it is formed on at least one side, and is formed on both sides. You may.
  • an anchor coat layer may be interposed between the base material layer and the resin layer as described above as long as the object of the present invention is not impaired.
  • a print layer may be formed. Further, the paper of the base material layer may be subjected to corona treatment.
  • a chain extender an ultraviolet absorber, a lubricant, an antistatic agent, and a heat stabilizer are used in the copolymerized polyethylene terephthalate resin as long as the object of the present invention is not impaired.
  • Antioxidants, pigments, dyes, antioxidants, light stabilizers, plasticizers and other various additives may be contained in appropriate amounts.
  • the method for producing the copolymerized polyethylene terephthalate resin obtained by copolymerization with isophthalic acid is not particularly limited, and if copolymerization is carried out under known methods and conditions. As described above, a plurality of polyethylene terephthalate resins may be mixed to adjust the copolymerization ratio.
  • the copolymerization ratio of isophthalic acid in the homopolyethylene terephthalate resin was 0% (Comparative Example 1). Moreover, each melting point was measured by a commercially available differential scanning calorimeter. Further, the biobase carbon content was measured by a radiocarbon (C14) measurement method compliant with ISO-16620-2 (equivalent to the ASTM-D6866 standard), and was determined by the above-mentioned biobase carbon content calculation formula.
  • a paper having a basis weight of 230 g / m 2 is used as a base material layer, and each type of polyethylene terephthalate resin described above is applied to one surface thereof by an extrusion lamination method in Example 1, Example 2, Example 4, and Comparative Examples 1 to 3.
  • Each composite substrate was prepared by coating with a thickness of 30 ⁇ m, a thickness of 40 ⁇ m in Example 3, and a thickness of 20 ⁇ m in Example 5. The thickness of the polyethylene terephthalate resin was measured by observing the cross section of the composite base material with a commercially available microscope.
  • Containers of Examples 1 to 5 and Comparative Examples 1 to 3 were prepared.
  • Adhesion test A test piece having a size of 50 mm ⁇ 150 mm is cut out from each of the composite base materials of each type prepared above, and a peeling test is performed at a speed of 100 mm / min with 180 ° peeling to obtain a base material layer and resin of the composite base material. Adhesion with the layer was tested.
  • a product number MAX-R2KN-B manufactured by Japan Measurement System Co., Ltd. was used as a measuring device.
  • the ideal adhesion is complete delamination of paper, but it was judged that there would be no problem if there was strength to delaminate some paper.
  • the adhesion was evaluated as ⁇ (unsuitable) for less than 4N / 50 mm, ⁇ (available) for 4N / 50 mm or more and less than 7N / 50 mm, and ⁇ (suitable) for 7N / 50 mm or more.
  • Heat resistance test The following two types of heat resistance tests were performed using each type of container prepared above.
  • Table 1 below shows the composition of each type of container (resin, composite base material) and the results of each test.
  • Example 1 having a biobase carbon content of 17% and Example 3 having a biobase carbon content of 6.2%, adhesion and heat resistance are preferable as in the other examples having a biobase carbon content of 0%. It was confirmed that.
  • the container according to the present invention is suitable as, for example, a paper cup or a case for storing beverages, foods, and the like.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Laminated Bodies (AREA)
PCT/JP2020/032128 2019-08-26 2020-08-26 容器 Ceased WO2021039822A1 (ja)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP2021542953A JP7671690B2 (ja) 2019-08-26 2020-08-26 容器
PCT/JP2021/007147 WO2022044377A1 (ja) 2019-08-26 2021-02-25 容器
CN202180057586.3A CN116096647A (zh) 2019-08-26 2021-02-25 容器
JP2022545279A JP7791824B2 (ja) 2019-08-26 2021-02-25 容器

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2019153927 2019-08-26
JP2019-153927 2019-08-26

Publications (1)

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WO2021039822A1 true WO2021039822A1 (ja) 2021-03-04

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PCT/JP2020/032128 Ceased WO2021039822A1 (ja) 2019-08-26 2020-08-26 容器
PCT/JP2021/007147 Ceased WO2022044377A1 (ja) 2019-08-26 2021-02-25 容器

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JP (2) JP7671690B2 (https=)
CN (1) CN116096647A (https=)
WO (2) WO2021039822A1 (https=)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022044377A1 (ja) * 2019-08-26 2022-03-03 東洋アルミエコープロダクツ株式会社 容器

Citations (5)

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Publication number Priority date Publication date Assignee Title
JP2002337840A (ja) * 2001-05-10 2002-11-27 Jujo Central Co Ltd 包装用容器
JP2004018101A (ja) * 2002-06-20 2004-01-22 Dainippon Printing Co Ltd 紙カップおよびその製造方法
JP2012062099A (ja) * 2010-09-17 2012-03-29 Nippon Dekishii:Kk 紙製容器
JP2014061663A (ja) * 2012-09-21 2014-04-10 Toyo Seikan Kaisha Ltd 包装材およびそれを用いてなる包装構造
JP2018001611A (ja) * 2016-07-01 2018-01-11 大日本印刷株式会社 ポリエステル樹脂層を備える積層体およびそれを備える包装製品

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Publication number Priority date Publication date Assignee Title
JP2001072747A (ja) 1996-05-31 2001-03-21 Kanebo Ltd ポリエステル樹脂組成物及びフィルム、並びにポリエステル中の低分子量化合物を低減する方法
JP2011012154A (ja) 2009-07-01 2011-01-20 Nippon Ester Co Ltd ポリエステル樹脂及びバインダー繊維
JP5605448B2 (ja) 2013-02-27 2014-10-15 大日本印刷株式会社 紙カップ容器
JP6887282B2 (ja) 2017-03-29 2021-06-16 東洋アルミニウム株式会社 紙容器、紙容器の製造方法、及び、接合構造
JP6944656B2 (ja) 2017-07-13 2021-10-06 大日本印刷株式会社 積層体
CN110612209B (zh) * 2017-12-18 2021-12-31 株式会社Huvis 耐热性及加工性优异的食品容器用复合片材及其制备方法
WO2021039822A1 (ja) * 2019-08-26 2021-03-04 東洋アルミエコープロダクツ株式会社 容器

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002337840A (ja) * 2001-05-10 2002-11-27 Jujo Central Co Ltd 包装用容器
JP2004018101A (ja) * 2002-06-20 2004-01-22 Dainippon Printing Co Ltd 紙カップおよびその製造方法
JP2012062099A (ja) * 2010-09-17 2012-03-29 Nippon Dekishii:Kk 紙製容器
JP2014061663A (ja) * 2012-09-21 2014-04-10 Toyo Seikan Kaisha Ltd 包装材およびそれを用いてなる包装構造
JP2018001611A (ja) * 2016-07-01 2018-01-11 大日本印刷株式会社 ポリエステル樹脂層を備える積層体およびそれを備える包装製品

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022044377A1 (ja) * 2019-08-26 2022-03-03 東洋アルミエコープロダクツ株式会社 容器
JPWO2022044377A1 (https=) * 2019-08-26 2022-03-03
JP7791824B2 (ja) 2019-08-26 2025-12-24 東洋アルミエコープロダクツ株式会社 容器

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JPWO2021039822A1 (https=) 2021-03-04
CN116096647A (zh) 2023-05-09
WO2022044377A1 (ja) 2022-03-03
JP7671690B2 (ja) 2025-05-02
JPWO2022044377A1 (https=) 2022-03-03
JP7791824B2 (ja) 2025-12-24

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