JP2017114124A - 多層シート及びこれを用いた多層容器 - Google Patents
多層シート及びこれを用いた多層容器 Download PDFInfo
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- JP2017114124A JP2017114124A JP2016249158A JP2016249158A JP2017114124A JP 2017114124 A JP2017114124 A JP 2017114124A JP 2016249158 A JP2016249158 A JP 2016249158A JP 2016249158 A JP2016249158 A JP 2016249158A JP 2017114124 A JP2017114124 A JP 2017114124A
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- 239000011347 resin Substances 0.000 claims abstract description 61
- 239000004840 adhesive resin Substances 0.000 claims abstract description 48
- 229920006223 adhesive resin Polymers 0.000 claims abstract description 48
- 229920005990 polystyrene resin Polymers 0.000 claims abstract description 40
- 239000004793 Polystyrene Substances 0.000 claims abstract description 22
- 229920002223 polystyrene Polymers 0.000 claims abstract description 15
- -1 polyethylene Polymers 0.000 claims description 30
- 235000013305 food Nutrition 0.000 claims description 12
- 239000004698 Polyethylene Substances 0.000 claims description 10
- 229920000573 polyethylene Polymers 0.000 claims description 10
- 239000005020 polyethylene terephthalate Substances 0.000 claims description 9
- 229920000139 polyethylene terephthalate Polymers 0.000 claims description 9
- 229920013716 polyethylene resin Polymers 0.000 claims description 7
- 229920000098 polyolefin Polymers 0.000 claims description 7
- 239000004952 Polyamide Substances 0.000 claims description 6
- 239000005038 ethylene vinyl acetate Substances 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 claims description 6
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- 150000001990 dicarboxylic acid derivatives Chemical class 0.000 claims description 4
- 229920000219 Ethylene vinyl alcohol Polymers 0.000 claims description 3
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- 239000003814 drug Substances 0.000 claims description 2
- 229940079593 drug Drugs 0.000 claims 1
- 230000005802 health problem Effects 0.000 abstract description 3
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- 238000000465 moulding Methods 0.000 description 14
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- 239000004743 Polypropylene Substances 0.000 description 9
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- 230000000704 physical effect Effects 0.000 description 9
- 229920001155 polypropylene Polymers 0.000 description 9
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 6
- 239000007789 gas Substances 0.000 description 6
- 235000013618 yogurt Nutrition 0.000 description 6
- 229920001684 low density polyethylene Polymers 0.000 description 5
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- 235000013336 milk Nutrition 0.000 description 5
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- 210000004080 milk Anatomy 0.000 description 5
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- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical group C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 4
- 238000002788 crimping Methods 0.000 description 4
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- 241001391944 Commicarpus scandens Species 0.000 description 3
- 239000004677 Nylon Substances 0.000 description 3
- 235000013527 bean curd Nutrition 0.000 description 3
- 239000001569 carbon dioxide Substances 0.000 description 3
- 229910002092 carbon dioxide Inorganic materials 0.000 description 3
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 3
- 229920005669 high impact polystyrene Polymers 0.000 description 3
- 235000008446 instant noodles Nutrition 0.000 description 3
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- AYKYXWQEBUNJCN-UHFFFAOYSA-N 3-methylfuran-2,5-dione Chemical compound CC1=CC(=O)OC1=O AYKYXWQEBUNJCN-UHFFFAOYSA-N 0.000 description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 2
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- LGRFSURHDFAFJT-UHFFFAOYSA-N Phthalic anhydride Natural products C1=CC=C2C(=O)OC(=O)C2=C1 LGRFSURHDFAFJT-UHFFFAOYSA-N 0.000 description 2
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- JHIWVOJDXOSYLW-UHFFFAOYSA-N butyl 2,2-difluorocyclopropane-1-carboxylate Chemical compound CCCCOC(=O)C1CC1(F)F JHIWVOJDXOSYLW-UHFFFAOYSA-N 0.000 description 2
- 235000020152 coffee milk drink Nutrition 0.000 description 2
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- 238000009413 insulation Methods 0.000 description 2
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- OFNISBHGPNMTMS-UHFFFAOYSA-N 3-methylideneoxolane-2,5-dione Chemical compound C=C1CC(=O)OC1=O OFNISBHGPNMTMS-UHFFFAOYSA-N 0.000 description 1
- ATRRKUHOCOJYRX-UHFFFAOYSA-N Ammonium bicarbonate Chemical compound [NH4+].OC([O-])=O ATRRKUHOCOJYRX-UHFFFAOYSA-N 0.000 description 1
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 239000005062 Polybutadiene Substances 0.000 description 1
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000000274 adsorptive effect Effects 0.000 description 1
- 239000001099 ammonium carbonate Substances 0.000 description 1
- 235000012501 ammonium carbonate Nutrition 0.000 description 1
- 239000001273 butane Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000010411 cooking Methods 0.000 description 1
- 239000000539 dimer Substances 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 238000010828 elution Methods 0.000 description 1
- 239000004794 expanded polystyrene Substances 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 229920001903 high density polyethylene Polymers 0.000 description 1
- 239000004700 high-density polyethylene Substances 0.000 description 1
- 235000012907 honey Nutrition 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 229920000126 latex Polymers 0.000 description 1
- 229920000092 linear low density polyethylene Polymers 0.000 description 1
- 239000004707 linear low-density polyethylene Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- IJDNQMDRQITEOD-UHFFFAOYSA-N n-butane Chemical compound CCCC IJDNQMDRQITEOD-UHFFFAOYSA-N 0.000 description 1
- OFBQJSOFQDEBGM-UHFFFAOYSA-N n-pentane Natural products CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 description 1
- 231100000956 nontoxicity Toxicity 0.000 description 1
- 229920006280 packaging film Polymers 0.000 description 1
- 239000012785 packaging film Substances 0.000 description 1
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- 238000009512 pharmaceutical packaging Methods 0.000 description 1
- 229920002857 polybutadiene Polymers 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 229920005606 polypropylene copolymer Polymers 0.000 description 1
- 229920005629 polypropylene homopolymer Polymers 0.000 description 1
- 229920006327 polystyrene foam Polymers 0.000 description 1
- 235000011962 puddings Nutrition 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- 229910000030 sodium bicarbonate Inorganic materials 0.000 description 1
- 235000017557 sodium bicarbonate Nutrition 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 239000013638 trimer Substances 0.000 description 1
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- 239000013585 weight reducing agent Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/18—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by features of a layer of foamed 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
- B65D1/00—Containers having bodies formed in one piece, e.g. by casting metallic material, by moulding plastics, by blowing vitreous material, by throwing ceramic material, by moulding pulped fibrous material, by deep-drawing operations performed on sheet material
- B65D1/22—Boxes or like containers with side walls of substantial depth for enclosing contents
- B65D1/26—Thin-walled containers, e.g. formed by deep-drawing operations
-
- 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
- B65D1/00—Containers having bodies formed in one piece, e.g. by casting metallic material, by moulding plastics, by blowing vitreous material, by throwing ceramic material, by moulding pulped fibrous material, by deep-drawing operations performed on sheet material
- B65D1/22—Boxes or like containers with side walls of substantial depth for enclosing contents
- B65D1/26—Thin-walled containers, e.g. formed by deep-drawing operations
- B65D1/28—Thin-walled containers, e.g. formed by deep-drawing operations formed 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
- B65D1/00—Containers having bodies formed in one piece, e.g. by casting metallic material, by moulding plastics, by blowing vitreous material, by throwing ceramic material, by moulding pulped fibrous material, by deep-drawing operations performed on sheet material
- B65D1/22—Boxes or like containers with side walls of substantial depth for enclosing contents
- B65D1/26—Thin-walled containers, e.g. formed by deep-drawing operations
- B65D1/30—Groups of containers joined together end-to-end or side-by-side
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Ceramic Engineering (AREA)
- Laminated Bodies (AREA)
- Wrappers (AREA)
- Containers Having Bodies Formed In One Piece (AREA)
Abstract
Description
ポリスチレン
MFR9g/10分、密度1.04g/ccの一般用ポリスチレン(GPPS)70質量%とMFR2.7g/10分、密度1.04g/ccの耐衝撃性ポリスチレン30質量%の混合樹脂を使用した。発泡ポリスチレンは、この混合樹脂にN2ガスを0.25kg/hの割合で注入し、発泡倍率を1.6倍としたものを用いた。
不飽和ジカルボン酸無水物がポリプロピレンにグラフト結合された、MFR1g/10分、密度0.91g/ccの変性ポリオレフィンを用いた。
下記の樹脂を使用した。
(1)低密度ポリエチレン(LDPE)
MFR2g/10分 密度0.919g/cc
樹脂添加剤が無添加で乳等省令1群適応
MFR2g/10分 酢酸ビニル含有4質量%
固有粘度0.62dl/g 密度1.34g/cc
ユニチカ製 エンブレムON 25μm
(1)接着性樹脂のサンド押出しラミ法
接着性樹脂をTダイで50μmの厚みに押出しし、そのTダイの直下の片側より600μmの発泡PSシートを、もう片方より100μmの低密度ポリエチレンフィルムを繰り出しして多層シートを成形する。
この場合用いる成形設備は、Tダイ直下で両サイドから基材を繰り出すことができる機能を持った一般の押出しラミネート成形機であれば使用することができ、今回の場合、φ90mmの押出機をもつ成形設備を用いて成形した。
接着性樹脂をTダイで50μm押出しし、そのTダイ直下の片側より600μmの発泡PSシートを、もう片方より25μmのポリアミドフィルムを繰り出しして多層シートを成形する。
この場合用いる成形設備は、Tダイ直下で両サイドから基材を繰り出すことができる機能を持った一般の押出しラミネート成形機であれば使用することができ、今回の場合、φ90mmの押出機をもつ成形設備を用いて成形した。
接着性樹脂50μmとEVA樹脂100μmをTダイで共押出し(150μm)し、そのTダイ直下の接着性樹脂面側に600μmの発泡PSシートを繰り出して溶着させ多層シートを成形した。
この場合用いる成形設備は、Tダイ直下で片側から基材を繰り出すことができる機能を持った一般の押出しラミネート成形機であれば使用することができ、今回の場合、φ90mmの押出機2台をもつ共押出し成形設備を用いて成形した。
接着性樹脂50μmとポリエチレンテレフタレート樹脂60μmをTダイで共押出し(110μm)し、そのTダイ直下の接着性樹脂面側に600μmの発泡PSシートを繰り出して溶着させ多層シートを成形した。
この場合用いる成形設備は、Tダイ直下で片側から基材を繰り出すことができる機能を持った一般の押出しラミネート成形機であれば使用することができ、今回の場合、φ90mmの押出機2台をもつ共押出し成形設備を用いて成形した。
PS発泡樹脂をTダイで600μmの厚みに押出しし、そのTダイ直下の片側より50μmの接着性樹脂層と100μmの低密度ポリエチレン樹脂層からなる共押出しフィルムをPS面に接着性樹脂が来るように繰り出して多層シートを成形する。
この場合用いる成形設備は、Tダイ直下で片側から基材を繰り出すことができる機能を持った一般の押出しラミネート成形機であれば使用することができ、今回の場合、φ90mmの押出機を用いて成形した。
2 ポリスチレン樹脂層
3 接着性樹脂層
4 機能性樹脂層
5 分割溝(連結部)
6 多層容器
7 収容室
8 フランジ部
9 カバーシート
10 タブ部
Claims (9)
- ポリスチレンを主成分とするポリスチレン樹脂層を一方の面とし、機能性樹脂を主成分とする機能性樹脂層を他方の面とし、該ポリエチレン樹脂層と機能性樹脂層が接着樹脂層を介して接着されている多層シートであって、該機能性樹脂層と接着性樹脂層が切断された分割溝がポリスチレン樹脂層内に達する様に設けられている多層シート。
- 機能性樹脂がポリエチレン、ポリプロピレン、エチレン−酢酸ビニル共重合体、ポリエチレンテレフタレート、ポリアミド又はエチレンビニルアルコール共重合体である請求項1記載の多層シート。
- ポリスチレン樹脂が発泡樹脂であり、機能性樹脂がポリエチレンである請求項1又は2記載の多層シート。
- 接着性樹脂が、不飽和ジカルボン酸がポリオレフィンにグラフト結合している変性ポリオレフィンである請求項1ないし3のいずれかに記載の多層シート。
- 接着性樹脂をTダイから押出し、そのTダイ真下の片側よりポリスチレン樹脂シート、反対側からは機能性樹脂フィルムを繰出して、該接着性樹脂層を介してポリスチレン樹脂シートと機能性樹脂フィルムを積層することを特徴とする請求項1ないし4のいずれかに記載の多層シートの製造方法。
- 接着性樹脂層と機能性樹脂層よりなる共押出フィルムを作製し、その接着性樹脂層側にポリスチレン樹脂を押出して積層することを特徴とする請求項1ないし4のいずれかに記載の多層シートの製造方法。
- 請求項1ないし4のいずれかの多層シートを用いて成形された食品又は医薬品の多層容器。
- フランジ部を有し、分割溝がフランジ部に設けられている請求項7記載の多層容器。
- 乳製品を収容する容器である請求項7又は8記載の多層容器。
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JP2017114124A true JP2017114124A (ja) | 2017-06-29 |
JP2017114124A5 JP2017114124A5 (ja) | 2017-12-28 |
JP6266744B2 JP6266744B2 (ja) | 2018-01-24 |
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JP2016249158A Active JP6266744B2 (ja) | 2015-12-22 | 2016-12-22 | 多層シート及びこれを用いた多層容器 |
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JP6914543B2 (ja) * | 2019-04-05 | 2021-08-04 | 東京スレート株式会社 | 接着部材及びそれを使用した物品支持システム |
JP2021154569A (ja) * | 2020-03-26 | 2021-10-07 | 三菱ケミカル株式会社 | 多層フィルム、複合シート、および包装体 |
CN116600991A (zh) * | 2020-12-18 | 2023-08-15 | 电化株式会社 | 多层树脂片材及将其成型而成的成型容器 |
WO2023204216A1 (ja) * | 2022-04-18 | 2023-10-26 | 積水化学工業株式会社 | 樹脂発泡シート及び粘着テープ |
Citations (3)
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