JPS63102935A - Vessel for foodstuff - Google Patents
Vessel for foodstuffInfo
- Publication number
- JPS63102935A JPS63102935A JP61247334A JP24733486A JPS63102935A JP S63102935 A JPS63102935 A JP S63102935A JP 61247334 A JP61247334 A JP 61247334A JP 24733486 A JP24733486 A JP 24733486A JP S63102935 A JPS63102935 A JP S63102935A
- Authority
- JP
- Japan
- Prior art keywords
- layer
- container
- cup
- inorganic filler
- inner cup
- 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.)
- Pending
Links
- 229920001155 polypropylene Polymers 0.000 claims description 42
- 239000011256 inorganic filler Substances 0.000 claims description 40
- 229910003475 inorganic filler Inorganic materials 0.000 claims description 40
- 235000013305 food Nutrition 0.000 claims description 32
- 229920005989 resin Polymers 0.000 claims description 30
- 239000011347 resin Substances 0.000 claims description 30
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims description 18
- 239000005977 Ethylene Substances 0.000 claims description 18
- 239000004840 adhesive resin Substances 0.000 claims description 13
- 229920006223 adhesive resin Polymers 0.000 claims description 13
- -1 polypropylene Polymers 0.000 claims description 8
- 239000000203 mixture Substances 0.000 claims description 7
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 claims description 7
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 claims description 7
- 239000004743 Polypropylene Substances 0.000 claims description 6
- 229920000642 polymer Polymers 0.000 claims description 5
- 238000007789 sealing Methods 0.000 claims description 4
- 229920003002 synthetic resin Polymers 0.000 claims description 4
- 239000004952 Polyamide Substances 0.000 claims description 3
- 229920002647 polyamide Polymers 0.000 claims description 3
- 229920000515 polycarbonate Polymers 0.000 claims description 3
- 239000004417 polycarbonate Substances 0.000 claims description 3
- 239000000057 synthetic resin Substances 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 229920006149 polyester-amide block copolymer Polymers 0.000 claims description 2
- 239000010410 layer Substances 0.000 description 68
- 239000007789 gas Substances 0.000 description 24
- 238000000034 method Methods 0.000 description 18
- 238000004519 manufacturing process Methods 0.000 description 11
- 229920001577 copolymer Polymers 0.000 description 10
- 239000000463 material Substances 0.000 description 10
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 9
- 239000001301 oxygen Substances 0.000 description 9
- 229910052760 oxygen Inorganic materials 0.000 description 9
- 235000019645 odor Nutrition 0.000 description 8
- 235000014347 soups Nutrition 0.000 description 8
- 238000000465 moulding Methods 0.000 description 7
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 6
- 229920001384 propylene homopolymer Polymers 0.000 description 6
- 238000007666 vacuum forming Methods 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 5
- 238000011156 evaluation Methods 0.000 description 5
- 239000004677 Nylon Substances 0.000 description 4
- 229920001328 Polyvinylidene chloride Polymers 0.000 description 4
- 238000002485 combustion reaction Methods 0.000 description 4
- 229920001519 homopolymer Polymers 0.000 description 4
- 235000021056 liquid food Nutrition 0.000 description 4
- 229920001778 nylon Polymers 0.000 description 4
- 230000035699 permeability Effects 0.000 description 4
- 239000005033 polyvinylidene chloride Substances 0.000 description 4
- 240000008042 Zea mays Species 0.000 description 3
- 235000005824 Zea mays ssp. parviglumis Nutrition 0.000 description 3
- 235000002017 Zea mays subsp mays Nutrition 0.000 description 3
- 239000002131 composite material Substances 0.000 description 3
- 235000005822 corn Nutrition 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 150000002739 metals Chemical class 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 230000001954 sterilising effect Effects 0.000 description 3
- 238000004659 sterilization and disinfection Methods 0.000 description 3
- 239000004711 α-olefin Substances 0.000 description 3
- 101100327917 Caenorhabditis elegans chup-1 gene Proteins 0.000 description 2
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 244000294411 Mirabilis expansa Species 0.000 description 2
- 235000015429 Mirabilis expansa Nutrition 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 239000004793 Polystyrene Substances 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 235000013405 beer Nutrition 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000005038 ethylene vinyl acetate Substances 0.000 description 2
- 235000011194 food seasoning agent Nutrition 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000004615 ingredient Substances 0.000 description 2
- 239000011133 lead Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 235000013536 miso Nutrition 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 2
- 229920006289 polycarbonate film Polymers 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 229920000098 polyolefin Polymers 0.000 description 2
- 229920002223 polystyrene Polymers 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 238000007127 saponification reaction Methods 0.000 description 2
- 239000002356 single layer Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 235000013547 stew Nutrition 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- OEPOKWHJYJXUGD-UHFFFAOYSA-N 2-(3-phenylmethoxyphenyl)-1,3-thiazole-4-carbaldehyde Chemical compound O=CC1=CSC(C=2C=C(OCC=3C=CC=CC=3)C=CC=2)=N1 OEPOKWHJYJXUGD-UHFFFAOYSA-N 0.000 description 1
- 238000012371 Aseptic Filling Methods 0.000 description 1
- 239000004342 Benzoyl peroxide Substances 0.000 description 1
- OMPJBNCRMGITSC-UHFFFAOYSA-N Benzoylperoxide Chemical compound C=1C=CC=CC=1C(=O)OOC(=O)C1=CC=CC=C1 OMPJBNCRMGITSC-UHFFFAOYSA-N 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- 239000004419 Panlite Substances 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 229910052787 antimony Inorganic materials 0.000 description 1
- WATWJIUSRGPENY-UHFFFAOYSA-N antimony atom Chemical compound [Sb] WATWJIUSRGPENY-UHFFFAOYSA-N 0.000 description 1
- 238000009455 aseptic packaging Methods 0.000 description 1
- 229910052788 barium Inorganic materials 0.000 description 1
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 description 1
- 235000019400 benzoyl peroxide Nutrition 0.000 description 1
- 229920001400 block copolymer Polymers 0.000 description 1
- 238000000071 blow moulding Methods 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 1
- 150000001735 carboxylic acids Chemical class 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000007334 copolymerization reaction Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 235000021438 curry Nutrition 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229920001038 ethylene copolymer Polymers 0.000 description 1
- 229920005676 ethylene-propylene block copolymer Polymers 0.000 description 1
- 229920005674 ethylene-propylene random copolymer Polymers 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000002657 fibrous material Substances 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 239000000796 flavoring agent Substances 0.000 description 1
- 235000019634 flavors Nutrition 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 229920000578 graft copolymer Polymers 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 150000002484 inorganic compounds Chemical class 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 description 1
- 235000012054 meals Nutrition 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 235000012149 noodles Nutrition 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 239000002952 polymeric resin Substances 0.000 description 1
- 229920005990 polystyrene resin Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000005070 ripening Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 150000004760 silicates Chemical class 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 235000021055 solid food Nutrition 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 150000003467 sulfuric acid derivatives Chemical class 0.000 description 1
- 229920003051 synthetic elastomer Polymers 0.000 description 1
- 239000005061 synthetic rubber Substances 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
Landscapes
- Package Specialized In Special Use (AREA)
- Packages (AREA)
- Laminated Bodies (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
ｍ； を
本発明は耐熱性がすぐれているばかりでなく、気体透過
抵抗性についても良好な食品用容器に関するものであり
、スープ、味噌汁、シチューなどの流体または具などの
固形物を含む液状の食品用容器を提供することを目的と
するものである。[Detailed Description of the Invention] The present invention relates to a food container that not only has excellent heat resistance but also good gas permeation resistance, and is suitable for use in liquids or ingredients such as soup, miso soup, and stew. The object of the present invention is to provide a container for liquid food containing solid matter.
良釆立韮遣
従来からスープ、シチューなどの液体ものまたは具など
の固形物を含む液体もの食品は喫食時の調理の容易性か
ら、樹脂加工アルミニウム箔などの袋に収容されていた
。Traditionally, liquid foods such as soups and stews, or liquid foods containing solid substances such as ingredients, have been stored in bags made of resin-treated aluminum foil for ease of preparation.
しかしながら、このような袋詰めされたものでは、喫食
時に別の容器に移し替えなければならず喫食後の洗浄な
どを要し、食品の簡易簡便な喫食と？’う点で問題があ
った。そこで、従来より食品をカップ状容器に収容し、
容器に収容した状態で喫食できるようにすることが要請
されていた。However, with such bagged food, it is necessary to transfer the food to another container when eating, and cleaning after eating is required, making it difficult to eat food easily and conveniently. There was a problem with '. Therefore, conventionally, food is stored in cup-shaped containers,
It was requested that the product be made to be able to be eaten while still in a container.
ところで麺、味噌汁、カレー、スープなどの乾燥固形物
食品及び乾燥粉末食品については従来よりカップ状容器
が使用されていた。Incidentally, cup-shaped containers have conventionally been used for dry solid foods and dry powder foods such as noodles, miso soup, curry, and soup.
このカップ状容器としては、ポリスチレンなどの発泡容
器、ポリスチレンやポリプロピレンあるいはポリエステ
ルと紙の複合品などによる二重構造容器、カップ表面に
紙製コルゲート加工を施した容器さらに易焼却無公害型
の無機充填剤含有ポリプロピレン単層容器などがある。These cup-shaped containers include foamed containers such as polystyrene, double-walled containers made of polystyrene, polypropylene, or composites of polyester and paper, containers with paper corrugation on the cup surface, and inorganic filled containers that are easily incinerated and non-polluting. There are single-layer polypropylene containers containing agents.
さらに、焼却時低燃焼発熱量で焼却炉をいためない易焼
却樹脂で、食品安全性にすぐれ、かつレトルト殺菌（１
３０℃−６０分）および電子レンジでの加熱（８５℃−
１θ分）が可能であり、またチルド流通（−５°Ｃ〜５
℃）に耐える＃熱性、Ｆ＃寒性および耐水性、気体透過
抵抗性を有する容器が要望されている。Furthermore, it is an easily incinerated resin that does not damage the incinerator with a low combustion heat value when incinerated, and has excellent food safety and retort sterilization (1.
(30°C - 60 minutes) and microwave heating (85°C -
1θ min) is possible, and chilled distribution (-5°C to 5°C) is possible.
There is a need for a container that is resistant to temperatures up to 10°F (°C), resistant to F# cold, water resistant, and resistant to gas permeation.
しかしながら、従来から使用されている容器においてポ
リスチレン系樹脂の場合、発泡単層にかかわらずレトル
ト殺菌に必要な耐熱性がなく、また残留モノマーなどに
よる臭気の食品への移行などの問題がある。However, conventionally used containers made of polystyrene resin do not have the heat resistance necessary for retort sterilization, regardless of whether they are foamed single-layer containers, and there are also problems such as residual monomers causing odors to be transferred to foods.
また紙とプラスチックの複合品はレトルト時と長期間の
液体食品容器として耐寒性に問題がある。In addition, paper and plastic composite products have problems with cold resistance during retorting and as containers for liquid food for long periods of time.
さらに、ポリプロピレン容器は二重構造容器にし、内容
器中間層に気体透過抵抗性樹脂を構成すればほぼ機能的
に満足するが、レトルト処理時の耐熱性不良、焼却時の
゛燃焼発熱量の高さから来る焼却炉の破損問題がある。Furthermore, if the polypropylene container is made into a double-walled container and a gas permeation resistant resin is used in the middle layer of the inner container, it will be almost functionally satisfactory; There is also the problem of damage to incinerators.
また、無機充填剤含有ポリプロピレン容器は二重構造容
器にし５内容器中間層に気体透過抵抗性樹脂を構成すれ
ば耐熱性、レトルト処理、電子レンジ処理などには満足
するが、食品（特に酸性食品）によっては一部無機充填
剤の抽出、無機充填剤臭気の食品への移行などの食品安
全性、風味品質低下をまねく問題がある。In addition, if the polypropylene container containing an inorganic filler is made into a double-walled container and a gas permeation resistant resin is formed in the middle layer of the 5-inner container, the heat resistance, retort processing, microwave processing, etc. will be satisfied, but food (especially acidic food) ), there are problems such as extraction of some inorganic fillers and transfer of inorganic filler odor to food, which can lead to deterioration of food safety and flavor quality.
発 が しよ−と る。 屯
以上のことから、本発明はこれらの欠点（問題点）がな
く、すなわち易焼却樹脂であり、食品安全性が良好であ
るばかりでなく、レトルト殺菌および電子レンジによる
加熱も可能であり、しかもチルド流通に耐え得る耐熱性
、耐寒性および耐寒性および気体透過抵抗が良好である
食品容器を得ることである。I think it's about to start. Based on the above, the present invention does not have these drawbacks (problems); in other words, it is an easily incinerated resin, has good food safety, and can also be retort sterilized and heated in a microwave oven. The object of the present invention is to obtain a food container that has good heat resistance, cold resistance, and gas permeation resistance that can withstand chilled distribution.
口 占 ・ るための よび・本発明にしたが
えば、これらの問題点は、外カップおよび該外カップの
内側に設けられた内カップを具備する二重構造容器なら
びに該内カップ。を密封し得るイージーオープン蓋から
なり、該内カップは外カップの口部の周縁部において係
合しており、かつ両カップの底面間および周壁間には、
いずれも空隙部を有する食品用・容器であり、該外カッ
プは２０〜７０重量％の無機充填剤を含有する無機充填
剤含有プロピレン系重合体層よりなり、また内カップは
該カップの内層からプロピレン系重合体層／前記無機充
填剤含有プロピレン系重合体層／接着性樹脂層／気体透
過抵抗性樹脂層／接着性樹脂層／前記無機充填剤含有プ
ロピレン系重合体層の順に積層されてなり、さらにイー
ジーオープン蓋は外層としてポリプロピレン、ポリカー
ボネート、ポリエステルおよびポリアミドからなる群か
らえらばれた合成樹脂の層、中間層として気体透過抵抗
性樹脂および内層としてプロピレン系樹脂とエチレン系
樹脂との混合物の層からなることを特徴とする食品用容
器。According to the present invention, these problems are solved by providing a double-walled container comprising an outer cup and an inner cup provided inside the outer cup, and the inner cup. The inner cup is engaged at the peripheral edge of the mouth of the outer cup, and between the bottom surfaces and the circumferential walls of the two cups,
Both are containers for food with voids, the outer cup is made of an inorganic filler-containing propylene polymer layer containing 20 to 70% by weight of an inorganic filler, and the inner cup is made of an inorganic filler-containing propylene polymer layer containing 20 to 70% by weight of an inorganic filler. The propylene polymer layer/the inorganic filler-containing propylene polymer layer/adhesive resin layer/gas permeation resistant resin layer/adhesive resin layer/the inorganic filler-containing propylene polymer layer are laminated in this order. In addition, the easy-open lid has a layer of a synthetic resin selected from the group consisting of polypropylene, polycarbonate, polyester and polyamide as an outer layer, a gas permeation resistant resin as an intermediate layer and a layer of a mixture of propylene resin and ethylene resin as an inner layer. A food container characterized by comprising:
によって解決することができる。以下、本発明を具体的
に説明する。It can be solved by The present invention will be explained in detail below.
（＾）外カップ
本発明の容器の外カップにおいて使われるプロピレン系
重合体はプロピレン単独重合体またはプロピレンを少な
くとも７０重量％含有するエチレンもしくは他のα−オ
レフィンとのランダムまたはα−オレフィンとのランダ
ムまたはブロック共重合体があげられ、さらに熟成形た
とえば真空成形等で容器を得る場合、１．０〜５０重量
％のエチレン系重合体をプロピレン系重合体に混合する
と、良好な製品が得られる。これらのプロピレン系重合
体のメルトフローレート（ＪＩＳ Ｋ−７２１０に従
い、温度が２３０℃および荷重が２．１６Ｋｇの条件で
測定。(^) Outer cup The propylene polymer used in the outer cup of the container of the present invention is a propylene homopolymer or a random combination with ethylene or other α-olefins or a random combination with α-olefins containing at least 70% by weight of propylene. Alternatively, a block copolymer may be mentioned, and when a container is obtained by ripening, such as vacuum forming, a good product can be obtained by mixing 1.0 to 50% by weight of an ethylene polymer with a propylene polymer. Melt flow rate of these propylene polymers (measured according to JIS K-7210 at a temperature of 230°C and a load of 2.16 kg.
以下ｒ ＭＦＲ（１） Ｊと云う〕は０．００５〜８０
ｇ／１０分であり、０．０１〜１３０ ｇ ／ １０分
のものが望ましく、とりわけ０．０１〜４０ ｇ ／
１０分のプロピレン系重合体が好適である。 ＭＦＲ
（１）が０．００５ ｇ ／ １０分未満のプロピレン
系重合体を用いると、容器を得る成形加工性が悪く、良
好な容器が得られず、また８０ｇ／１０分を越えたプロ
ピレン系重合体を使用すると、容器の耐衝撃性が弱く、
容器が実用に適しない。Hereinafter referred to as r MFR (1) J] is 0.005 to 80
g/10 minutes, preferably 0.01 to 130 g/10 minutes, especially 0.01 to 40 g/10 minutes.
A 10 minute propylene polymer is preferred. MFR
If a propylene polymer with (1) is less than 0.005 g/10 minutes is used, the molding processability to obtain a container will be poor, making it impossible to obtain a good container. If you use , the impact resistance of the container will be weak,
The container is not suitable for practical use.
また本発明の無機充填剤は一般に合成樹脂およびゴムの
分野において広く使われているものである。Further, the inorganic filler of the present invention is generally widely used in the fields of synthetic resins and rubber.
これらの無機充填剤としては、酸素および水と反応しな
い無機化合物であり、混練時および成形時において分解
しないものが好んで用いられる。These inorganic fillers are preferably inorganic compounds that do not react with oxygen and water and do not decompose during kneading and molding.
該無機充填剤としてはアルミニウム、銅、鉄、鉛および
ニッケルのごとき金属、これらの金属およびマグネシウ
ム、カルシウム、バリウム、亜鉛、ジルコニウム、モリ
ブデン、ケイ素、アンチモン、チタンなどの金属の酸化
物、その水利物（水酸化物）硫酸塩、炭酸塩、ケイ酸塩
のごとき化合物、これらの複塩ならびにこれらの混合物
に大別される。該無機充填剤の代表例は特願昭５９−１
２４４８１号明細書に記載されている。The inorganic fillers include metals such as aluminum, copper, iron, lead and nickel, oxides of these metals and metals such as magnesium, calcium, barium, zinc, zirconium, molybdenum, silicon, antimony and titanium, and hydric products thereof. (Hydroxide) Broadly divided into compounds such as sulfates, carbonates, and silicates, their double salts, and mixtures thereof. A representative example of the inorganic filler is disclosed in Japanese Patent Application No. 1987-1.
It is described in the specification of No. 24481.
これらの無機充填剤のうち、粉末状のものはその径が３
０ミクロン以下（好適には１０ミクロン以下）のものが
好ましい、また、繊維状のものでは径が１〜５００ ミ
クロン（好適には！〜３００ ミクロン）であり、長さ
が０．１〜６．０ ｍ＋ｇ （好適には０．１〜５ ■
）のものが望ましい、さらに、平板状のものは３０ミク
ロン以下（好適には１０ミクロン以下）のものが好まし
い、これらの無機充填剤のうち、特に平板状（フレーク
状）のものおよび粉末状のものが好適である。Among these inorganic fillers, those in powder form have a diameter of 3
It is preferable to have a diameter of 0 microns or less (preferably 10 microns or less), and a fibrous material with a diameter of 1 to 500 microns (preferably ! to 300 microns) and a length of 0.1 to 6. 0 m+g (preferably 0.1 to 5 ■
) are preferable, and those in the form of a plate are preferably 30 microns or less (preferably 10 microns or less).Among these inorganic fillers, particularly those in the form of a plate (flake) and powder Preferably.
該無機充填剤含有プロピレン系重合体中に占める無機充
填剤の組成割合（含有割合）は２０〜７０重量％であり
、２５〜６５重量％が望ましく、とりわけ３０〜６０重
量％が好適である。The composition ratio (content ratio) of the inorganic filler in the inorganic filler-containing propylene polymer is 20 to 70% by weight, preferably 25 to 65% by weight, and particularly preferably 30 to 60% by weight.
無機充填剤含有プロピレン系重合体中に占める無機充填
剤の組成割合が２０重量％未満では、得られる容器の剛
性が不足し、かつ焼却時の燃焼発熱量が７０００Ｋｃａ
ｌ／ Ｋｇ以上になり易焼却型樹脂にならない。一方、
７０重量％を越えると、得られる容器の耐衝撃性が著し
く低下し、実用に適しない容器しか得られない。If the composition ratio of the inorganic filler in the inorganic filler-containing propylene polymer is less than 20% by weight, the rigidity of the resulting container will be insufficient and the combustion calorific value during incineration will be 7000 Kca.
1/Kg or more, it will not become an easily incinerated resin. on the other hand,
If it exceeds 70% by weight, the impact resistance of the resulting container will be significantly reduced, resulting in a container that is not suitable for practical use.
（容器の成形方法）
容器成形方法は、一般のすレフイン系重合体の分野にお
いて実施されている成形方法（シートから得る方法、射
出成形から得る方法、中空成形から得る方法など）を適
用すればよい、この成形方法の代表例としては、無機充
填剤含有プロピレン系重合体を押出しさせながらシート
成形し、このシートを用い真空成形あるいは圧空成形、
またはプレス成形で容器を得る方法があげられる。また
、該使用するシートの厚みは０．１ｍｍ〜０．３ ｍｍ
であり ０．４ｍｍ〜２．０ ａｓが好ましく、Ｏ１θ
ｆｆ１１１〜１．５ｆｆｉ膳が好適である。(Container molding method) The container can be molded by applying the molding methods used in the field of general resin polymers (methods obtained from sheets, methods obtained through injection molding, methods obtained through blow molding, etc.). A typical example of this molding method is to form a sheet while extruding an inorganic filler-containing propylene polymer, and then use this sheet to perform vacuum forming or pressure forming.
Another method is to obtain a container by press molding. In addition, the thickness of the sheet used is 0.1 mm to 0.3 mm.
and preferably 0.4 mm to 2.0 as, O1θ
ff111 to 1.5ffi meal is suitable.
（Ｂ）内カップ
また、本発明の容器の内カップにおいて使われるプロピ
レン系重合体および無機充填剤含有プロピレン系重合体
は、前記外カツプ構成に用いたプロピレン系重合体およ
びｆ＃機充填剤含有プロピレン系重合体が使われる。(B) Inner cup Furthermore, the propylene polymer and the inorganic filler-containing propylene polymer used in the inner cup of the container of the present invention are the propylene polymer and the inorganic filler-containing propylene polymer used in the outer cup structure. A propylene polymer is used.
また、本発明において使われる気体透過抵抗性樹脂はエ
チレンと酢酸ビニルとの共重合体のけん化物またはポリ
塩化ビニリデンおよびその共重合体物、あるいはナイロ
ンなどの従来公知の気体透過抵抗性樹脂のいずれか一種
である。Furthermore, the gas permeation resistant resin used in the present invention may be a saponified product of a copolymer of ethylene and vinyl acetate, a polyvinylidene chloride and its copolymer, or a conventionally known gas permeation resistant resin such as nylon. It is one of a kind.
たとえばエチレンと＃酸ビニルとの共重合体けん化物の
エチレンと酢酸ビニルとの共重合体のエチレンの共重合
割合は通常１５〜６０モル％であり、１５〜５５モル％
が好ましい。また特に、けん化度は一般には８０％以上
であり、８５％以上が望ましく、とりわけ９０％以上が
好適である。For example, the copolymerization ratio of ethylene in a saponified copolymer of ethylene and vinyl acetate is usually 15 to 60 mol%, and 15 to 55 mol%.
is preferred. In particular, the degree of saponification is generally 80% or more, preferably 85% or more, and particularly preferably 90% or more.
さらに、メルトフローインデックス（ＪＩＳＫ−７２１
０にしたがい、温度が２１０℃および荷重が２．１ｆｔ
Ｋｇで測定、以下ｒ ＭＦＲ（２）と云う〕は通常０．
１〜５０ ｇ ／ １０分であり、 ０．１〜２０ｇ／
１０分のもの１が望ましく、とりわけ０．５〜２０ ｇ
／ １０分のものが好適である。 ＮＦＲ（２）が
０．１ｇ７１０分未満の工チレンと酢酸ビニルとの共重
合体けん化物を使うと、後記の多層積層物を製造するさ
いに成形性が良くない、一方、２０ ｇ ／ １０分を
越えたエチレンと酢酸ビニルとの共重合体のけん化物を
使用すると、多層積層物を製造するときに押出性が悪く
、良好な積層物が得られない。Furthermore, melt flow index (JISK-721
According to 0, the temperature is 210℃ and the load is 2.1ft.
Measured in Kg, hereinafter referred to as r MFR(2)] is usually 0.
1~50g/10 minutes, 0.1~20g/
1/10 is preferable, especially 0.5 to 20 g
/ 10 minutes is suitable. When a saponified copolymer of polyethylene and vinyl acetate with an NFR (2) of less than 0.1 g/10 min is used, the moldability is not good when producing the multilayer laminate described below; If a saponified product of a copolymer of ethylene and vinyl acetate exceeding 100% is used, extrudability will be poor when producing a multilayer laminate, and a good laminate will not be obtained.
また、ポリ塩化ビニリデンおよびその共重合物は塩化ビ
ニリデン単独重合体または塩化ビニリゾ・ンを少なくと
も５０重量％以上含有する塩化ビニルとの共重合体であ
り、メルトフローインデッスク（ＪＩＳ Ｋ−７２１
０にしたがい、温度が１８０℃および荷重カ２．１８Ｋ
ｇテ測定、以下ｒ ＭＦＲ（３） Ｊ ト云つ）は通常
０．１〜５０ ｇ ／ １０分であり、 ０．１〜２
０ｇ７１０分のものが望ましく、とりわけ０．５〜２０
ｇ／１０分のものが好適である。In addition, polyvinylidene chloride and its copolymer are vinylidene chloride homopolymers or copolymers with vinyl chloride containing at least 50% by weight of vinylizone chloride, and are compliant with melt flow index (JIS K-721).
According to 0, the temperature is 180℃ and the load force is 2.18K.
g Te measurement (hereinafter referred to as r MFR(3)
0g710 min is desirable, especially 0.5-20
g/10 minutes is preferred.
さらに、ポリアミド（例えば８−ナイロン、非品性ナイ
ロン）などの従来公知の気体透過抵抗性樹脂はメルトフ
ローインデックス（ＪＩＳ Ｋ−７２１０にしたがい
、各樹脂ＪＩＳ指定温度に伴い荷重が２．１６Ｋｇで測
定、以下ｒ ＭＦＲ（４） Ｊと云う〕は通常０．１〜
５０ｇ／１０分であり、 ０．１〜２０ ｇ ／ １０
分のものが望ましく、とりわけ０．５〜２０ ｇ ／
１０分のものが好適である。 ＭＦＲ（４）が０．１
ｇ／ＩＱ分未満の気体透過抵抗性樹脂を使うと、後記の
多層積層物を製造するさいに成形性が良くない、一方、
２０ｇ／１０分を越えた気体透過抵抗性樹脂を使用する
と、多層積層物を製造するときに押出性が悪く良好なａ
層物が得られない。Furthermore, conventionally known gas permeation resistant resins such as polyamides (e.g. 8-nylon, non-grade nylon) have a melt flow index (measured at a load of 2.16 kg according to JIS K-7210 for each resin at a JIS specified temperature). , hereinafter referred to as r MFR (4) J] is usually 0.1 to
50g/10min, 0.1~20g/10
preferably 0.5 to 20 g/
A time of 10 minutes is preferred. MFR(4) is 0.1
If a gas permeation resistant resin of less than g/IQ is used, the moldability will not be good when producing the multilayer laminate described below;
If a gas permeation resistant resin exceeding 20 g/10 minutes is used, extrudability will be poor when producing a multilayer laminate.
Layered material cannot be obtained.
また、接着樹脂は無機充填剤含有プロピレン系重合体と
気体透過抵抗性樹脂とを接着する樹脂であればいずれで
も良く、たとえばオレフィン系重合体１００重量部に対
して０．０１〜５．０重量部の不飽和カルボン酸または
その誘導体をグラフト１合させることによって得られる
グラフト共重合体などがあげられる。Further, the adhesive resin may be any resin as long as it can bond the inorganic filler-containing propylene polymer and the gas permeation resistant resin, for example, 0.01 to 5.0 parts by weight per 100 parts by weight of the olefin polymer. Examples include graft copolymers obtained by grafting unsaturated carboxylic acids or derivatives thereof.
（容器成形方法）
容器の成形方法は、一般のオレフィン系重合体の分野に
おいて実施されている成形方法（シートから得る方法、
射出成形から得る方法、中空成形から得る方法）を適用
すればよい、たとえば、シートから得る方法としては、
共押出シート成形法（フィードブロック方式、マルチマ
ニホールド方式、フィードブロック／マルチマニホール
ド方式）によって前記のプロピレン系重合体／無機充填
剤含有プロピレン系重合体／接着樹脂／気体透過抵抗性
樹脂／接着樹脂／無機充填剤含有プロピレン系重合体構
成の積層したシートを得て、このシートを用い真空成形
あるいは圧空成形またはプレス成形で容器を得る方法が
あげられる。(Container forming method) The container forming method is a forming method implemented in the field of general olefin polymers (methods obtained from sheets,
For example, as a method for obtaining from a sheet,
The above propylene polymer/inorganic filler-containing propylene polymer/adhesive resin/gas permeation resistant resin/adhesive resin/ An example of this method is to obtain a laminated sheet composed of a propylene polymer containing an inorganic filler, and then use this sheet to obtain a container by vacuum forming, pressure forming, or press forming.
また、該積層シートの厚み構成は最内層のプロピレン系
重合体は無機充填剤臭気の食品への移行防止などの食品
衛生保護が主目的であるため、通常は５ｐ■〜８０μ層
であり、好ましくは１０弘田〜６０ル厘で、最適には１
５川腸〜５０ＩＬ１１である。In addition, the thickness of the laminated sheet is usually 5p~80μ layer, which is preferable since the propylene polymer in the innermost layer is mainly used to protect food hygiene by preventing inorganic filler odor from transferring to food. is 10 to 60 ru, optimally 1
5 Kawaguchi to 50IL11.
５ｇｍ未満では、無機充填剤の臭気が食品に移行する。If it is less than 5 gm, the odor of the inorganic filler will be transferred to the food.
一方、８・］以上では、レトルト処理時の耐熱性不良、
焼却時の燃焼発熱量が高くなり、焼却炉破損の問題が発
生する。On the other hand, if it is 8.] or more, the heat resistance will be poor during retort processing,
The combustion calorific value during incineration increases, leading to the problem of damage to the incinerator.
気体透過抵抗性樹脂層の厚みは、酸素などの１００ 濤
ｔｓであり、とりわけ８ＪＪ、ｍ〜８０弘田のものが望
ましい。The thickness of the gas permeation resistant resin layer is 100 ts of oxygen, etc., and preferably 8JJ, m to 80 ts.
また、接着樹脂の厚みは無機充填剤含有プロピレン系重
合体と気体透過抵抗性樹脂とを接着させることが主目的
であり、通常はＩｇｍ〜７０ＩＬｆｆｉであり、好まし
くは５ｇｍ〜５０ｇｍのものが望ましい。The thickness of the adhesive resin is mainly for adhering the inorganic filler-containing propylene polymer and the gas permeation resistant resin, and is usually from Igm to 70 ILffi, preferably from 5 gm to 50 gm.
無機充填剤含有プロピレン系重合体は、レトルト時の容
器変形保持易焼却性が主目的であり、気体透過抵抗性樹
脂を挟んで両面に介し、内層側が外層側より厚く内層側
と外層側を合せた厚みが通常は １００ルー〜２５００
終■であり、殊に４００ ｇ ｒａ〜２０００ミル２０
００ルましい。The main purpose of propylene-based polymers containing inorganic fillers is to maintain container deformation and incineration properties when retorted. Gas permeation resistant resin is sandwiched between both sides, and the inner layer is thicker than the outer layer. The thickness is usually between 100 Ru and 2500
It is the last one, especially 400 g ra ~ 2000 mil 20
00 le is good.
（Ｃ） イージーオープン蓋
本発明の容器のイージーオープン蓋において使われるプ
ロピレン系重合体および気体透過抵抗性樹脂は前記内カ
ツプ容器に用いたものがあげられ、ポリカーボネートお
よびポリエステルあるいはナイロンはシート状に成形で
きるものであれば系重合体樹脂にエチレン系樹脂を混合
した内層面は前記内カップにあげたプロピレン系重合体
１００重量部に対して密度０．９１０〜０．９５０ ｇ
／ ｃ ｍ’のエチレン単独重合体あるいはエチレン
を７０重量％以上含有するα−オレフィンとの共重合体
を５．０〜５０．０重量部混合したものがあげられる。(C) Easy-open lid The propylene polymer and gas permeation resistant resin used in the easy-open lid of the container of the present invention include those used for the inner cup container, and polycarbonate, polyester, or nylon can be molded into a sheet. If possible, the inner layer surface made by mixing the ethylene resin with the polymer resin has a density of 0.910 to 0.950 g based on 100 parts by weight of the propylene polymer listed in the inner cup.
/ cm', or a mixture of 5.0 to 50.0 parts by weight of an ethylene homopolymer or a copolymer with α-olefin containing 70% by weight or more of ethylene.
（イージーオープン蓋の成形方法）
イージーオープン蓋の成形方法は、シート状物を真空成
形あるいは圧空成形またはプレス成形することによって
得られる。シート状物の成形は上記外層および中間層ま
た内層の各組成のフィルムをドライラミネート法で作成
する方法、また各層間に接着性樹脂を用い前述（内カッ
プ）の共押出法で作成する方法があげられる。(Method for forming an easy-open lid) A method for forming an easy-open lid is obtained by vacuum forming, pressure forming, or press forming a sheet-like product. Sheet-like products can be formed by dry laminating films of each composition for the outer layer, middle layer, or inner layer, or by the coextrusion method described above (inner cup) using an adhesive resin between each layer. can give.
本発明の食品用容器は第１図に示されているごとく、以
上の外カップ２および該外カップの内側に設けられた内
カップ１を具備する二重構造容器ならびに該内カップを
密封し得るイージーオープン蓋３からなるものである。As shown in FIG. 1, the food container of the present invention is a double-structured container comprising the outer cup 2 and the inner cup 1 provided inside the outer cup, and the inner cup can be sealed. It consists of an easy-open lid 3.
該内カップｌは外カップ２の口部の周縁部において係合
しており、かつ両カップの底面間には、いずれも空隙部
を有するものである。また、オーバーキャップ４をさら
に設けてもよい。The inner cup 1 engages with the outer cup 2 at the periphery of its mouth, and there is a gap between the bottom surfaces of both cups. Further, an overcap 4 may be further provided.
シ ゛よび
以下、実施例によって本発明をさらにくわしく説明する
。The present invention will be explained in more detail with reference to the following figures and examples.
実施例 ｌ
〔（Ａ）外カップの製造〕
ＭＦＲ（１）が０．５ｇ７１０分であるエチレン−プロ
ピレンブロック共重合体（エチレン含有量 １８重量％
）６０重量％、およびＭＦＲ（３）が０．２ ｇ ／
１０分、密度が０．１１５５ ｇ ／ ｃ ｒｎ’であ
るエチレン単独重合体１０．０重量％および粒径が３．
０７Ｌｍであるタルク３０重量％からなる無機充填剤含
有プロピレン系重合体をシート製造装置径 ｆ３！ｌｖ
ｍ押出機を使ってシート厚さが１．２ｍｍ（無機充填剤
含有プロピレン系重合体１．１■、プロピレン系重合体
層 ０．０３ｍｍ）であり、かつ巾が８８０１のシート
を得た。得られたシートを真空成形機（浅野研究所社製
、形式ＦＬＹ４４１） ヲ使ッテ直径カ８０ＩＩＩＩ、
Ｅ サカ７５ ｍｔａ、容量が２５０ｃｃの容器を成形
して得た。この容器を外カップとする。Example 1 [(A) Production of outer cup] Ethylene-propylene block copolymer (ethylene content 18% by weight) with MFR (1) of 0.5 g 710 minutes
) 60% by weight, and MFR (3) 0.2 g/
10 min, 10.0 wt% ethylene homopolymer with density 0.1155 g/c rn' and particle size 3.
07Lm of a propylene-based polymer containing an inorganic filler made of 30% by weight of talc with a diameter of f3! lv
A sheet having a thickness of 1.2 mm (inorganic filler-containing propylene polymer layer: 1.1 mm, propylene polymer layer: 0.03 mm) and a width of 880 mm was obtained using an M extruder. The obtained sheet was molded using a vacuum forming machine (manufactured by Asano Research Institute, model FLY441) with a diameter of 80III.
A container with a capacity of 250 cc and a weight of 75 mta was molded. This container will be used as the outer cup.
内層ａとしてＭＦＲ（１）が１．０ｇ／１０分のプロピ
レン単独重合体、中間層すおよび外層ｂ゛ としてＭＦ
Ｒ（１）が０．５ ｇ ／ １０分のエチレン−プロピ
レンランダム共重合体（エチレン含有量 １８ｗｔ％）
４０重量％および前記エチレン単独重合体ｌＯ重量％お
よび粒径１．Ｏｇｍである炭酸カルシウム５０重量％か
らなる無機充填剤含有プロピレン系重合体、中間層Ｃお
よびＣ゛とじてプロピレン単独重合体１００重量部に対
して０．３重量部の無水マレイン酸を過酸化ベンゾイル
でグラフト変性したＮＦＲ（１）が２．５ ｇ ／ １
０分の接着樹脂、接着樹脂層ｄとしてエチレンと酢酸ビ
ニルとの共重合体のけん化物（エチレン含有量が３８モ
ル％、けん化度が９８％、ＭＦＲ（２）が４゜Ｏｇ ／
１０分）を使った上記内層、中間層、中間層および接
着樹脂層において使用した各樹脂を多層シート製造装置
（東芝機械社製、フィードブロック方式、径 ４０ｍｍ
押出機四台、四種六層）を使って内層ａ／中間層ｂり中
間Ｆ９Ｃ／接着樹脂層ｄ／中間層ｃ’／外層ｂ′の積層
構成でシートの厚さが０．９ｍｍ （各層の厚みａ層
０．０３ｍｍ、 ｂ層 ０．５１ｍｍ、 ０層 ０
．０１５、ｄ層 ０．０３ｍｍ、ｃ’ 層 ０．０１５
ｉ、 ｂ ’ ０．３ｍｍ） 、幅 ６８０ＩＩｌ
ｆｆｉのシートを得た。得られたシートを真空成形機（
浅野研究所社製、形式 ＦＬＶ４４１）を使って直径８
１．２■、深さ７０＋ｇｍ、容量２３０ｃｃの容器を成
形して得た。この容器を内カップとする。Propylene homopolymer with MFR (1) of 1.0 g/10 min as inner layer a, MF as intermediate layer and outer layer b
Ethylene-propylene random copolymer with R(1) of 0.5 g/10 min (ethylene content 18 wt%)
40% by weight and the ethylene homopolymer lO weight% and particle size 1. 0.3 parts by weight of maleic anhydride was added to benzoyl peroxide based on 100 parts by weight of the propylene homopolymer for intermediate layers C and C. NFR(1) graft-modified with 2.5 g/1
0 minute adhesive resin, adhesive resin layer d is a saponified copolymer of ethylene and vinyl acetate (ethylene content is 38 mol%, saponification degree is 98%, MFR (2) is 4 ° Og /
Each resin used in the inner layer, middle layer, middle layer, and adhesive resin layer was processed using a multilayer sheet manufacturing device (manufactured by Toshiba Machine Co., Ltd., feed block method, diameter 40 mm) using
The thickness of the sheet was 0.9 mm (each layer was made using four extruders, six layers of four types) with a laminated structure of inner layer a/intermediate layer b, intermediate F9C/adhesive resin layer d/intermediate layer c'/outer layer b'. Thickness of layer a
0.03mm, B layer 0.51mm, 0 layer 0
．． 015, d layer 0.03mm, c' layer 0.015
i, b' 0.3mm), width 680IIl
I got an ffi sheet. The obtained sheet is placed in a vacuum forming machine (
Diameter 8 using Asano Laboratory Co., Ltd., model FLV441)
A container having a diameter of 1.2 mm, a depth of 70+gm, and a capacity of 230 cc was obtained. This container will be used as the inner cup.
内カップの積層構成（部分拡大断面図）を第３図に示す
。The laminated structure (partially enlarged sectional view) of the inner cup is shown in FIG.
イージーオープン蓋を製造するために外層用材として厚
さが８０ｐｍのポリカーボネートフィルム（奇人社製、
商品名 パンライトフィルム）、中間層用材厚さ３０ｐ
、ｍのポリ塩化ビニリデンフィルム（旭化成社製、商品
名 サランフィルム）および内層用材としてプロピレン
−エチレンランダム共出合体（ＭＦＲ（１） ３．５
ｇ／ｉｏ分、エチレン含有量 ゛４．８％〕１００重
量部に対してＭＦＲ７，５ｇ／１０分の直鎖状エチレン
系共重合体２０重量部を混合して作成した７０ｐ、Ｉｍ
のフィルムを使用した。In order to manufacture the easy-open lid, a polycarbonate film with a thickness of 80 pm (manufactured by Kijinsha,
Product name: Panlite Film), intermediate layer material thickness: 30p
, m polyvinylidene chloride film (manufactured by Asahi Kasei Co., Ltd., trade name Saran Film) and a propylene-ethylene random co-extrusion composite (MFR (1) 3.5 as the inner layer material).
70p, Im prepared by mixing 20 parts by weight of a linear ethylene copolymer with an MFR of 7.5 g/10 minutes to 100 parts by weight of g/io and ethylene content of 4.8%.
film was used.
内層用材と中間層用材とをウレタン系接着剤を用いドラ
イラミネーター（岡崎機械工業社製）で接着、積層させ
、次に上記で得た積層シート（内層用材／中間層用材
積層シート）の中間層側に外層用材とをウレタン系接着
剤を介して上記ドライラミネーターで接着させ、イージ
ーオープン着用積層シートを得た。この得た積層シート
は、厚さが２００ミクロン、幅が８３０ｍｍのものであ
った。The inner layer material and the intermediate layer material are bonded and laminated using a dry laminator (manufactured by Okazaki Kikai Kogyo Co., Ltd.) using a urethane adhesive, and then the laminated sheet obtained above (inner layer material/intermediate layer material
The material for the outer layer was adhered to the intermediate layer side of the laminated sheet) using the above-mentioned dry laminator via a urethane adhesive to obtain an easy-to-wear laminated sheet. The obtained laminated sheet had a thickness of 200 microns and a width of 830 mm.
次に、この得たシートを圧空熱板成形４１！（浅野研究
所社製、形式 ＣＬ３１１ ）を使って直径が７８．８
ｍｍ、深さが５．０ｍｍの落し蓋部イージーオープン蓋
を得た。Next, the obtained sheet was formed into a hot air plate molding step 41! (manufactured by Asano Research Institute, model CL311) with a diameter of 78.8
An easy-open lid with a drop-off lid portion and a depth of 5.0 mm was obtained.
本発明の容器形状は上記外カップ、内カップ、イージー
オープン蓋を組み合せたものから成り立っているもので
ある。その構成図（一部裁断側面図）を第１図に示す、
また、そのヒートシール面Ａの拡大端面図を第２図に示
す。The container shape of the present invention is composed of a combination of the above-mentioned outer cup, inner cup, and easy-open lid. Its configuration diagram (partially cut side view) is shown in Figure 1.
Further, an enlarged end view of the heat-sealing surface A is shown in FIG.
次にこの容器について以下のテストを行なった。Next, the following tests were conducted on this container.
■容器のレトルト性
内カップに全内容量の５％が空間部分になるよう水を充
填し、イージーオープン蓋を温度２００°Ｃ１時間３秒
間、圧力２．５Ｋｇ／ ｃ ｔｎ’ ｒ）） シー ）
条件でリングシールを行ない密封水充填容器を得た。■ Fill the retortable inner cup of the container with water so that 5% of the total content is empty space, and open the easy-open lid at 200°C for 1 hour and 3 seconds at a pressure of 2.5Kg/ctn'r))
Ring sealing was performed under these conditions to obtain a sealed water-filled container.
（線シール幅 １ 、０＋ｅ＋ｗ）得られた密封水充填
容器をレトルト釜（大和製鑵社製、形式 ＫＨＲ−Ｗ−
１０１−Ｍ ）を使って温度１２１℃１時間２０分間レ
トルト処理を行ない、レトルト後の容器の変形度合およ
び蓋材のイージーピール性度合を評価した。(Line seal width 1, 0+e+w) The obtained sealed water-filled container is placed in a retort pot (manufactured by Yamato Seikasha, model KHR-W-
101-M) at a temperature of 121° C. for 1 hour and 20 minutes, and the degree of deformation of the container after retorting and the degree of easy peelability of the lid material were evaluated.
その結果は、容器の変形が全くなく、レトルト時に蓋材
シール面から水もれすることがなく、かつレトルト後で
も蓋部が簡単に開封できた。As a result, there was no deformation of the container at all, no water leaked from the sealing surface of the lid during retorting, and the lid could be easily opened even after retorting.
■気体透過抵抗性
本発明の容器（内カップ）の気体透過抵抗性評価として
、酸素透過率測定装置（モダンコントロール社製、形式
０Ｘ−ＴＲＡＮ １００Ａ）を使って酸素透過率を測
定した。その結果は０．０３ｃｃ７２４時間、カップ、
酸素が１気圧（測定温度 ２３℃）で非常にすぐれた気
体透過抵抗性を有する容器であった。(2) Gas permeation resistance To evaluate the gas permeation resistance of the container (inner cup) of the present invention, the oxygen permeability was measured using an oxygen permeability measuring device (manufactured by Modern Control Co., Ltd., Model 0X-TRAN 100A). The result is 0.03cc 724 hours, cup,
The container had excellent gas permeation resistance at 1 atm of oxygen (measured temperature: 23°C).
■電子レンジ処理性
本発明の容器（内カップ）にコーンスープ１８０ｃｃを
入れ電子レンジ（松下電機産業社製、形式ＮＥ−Ａ８１
０ ）で５分間処理した。■Microwave processability Pour 180cc of corn soup into the container (inner cup) of the present invention and microwave it (manufactured by Matsushita Electric Industrial Co., Ltd., model NE-A81).
0) for 5 minutes.
その結果は、コーンスーブの温度が９８℃になっている
にもかかわらず、外カップの温度は５２℃で容易に手で
持つことができ、また喫食時に容器の臭気がなく、かつ
容器の変形が全く見られなかった。The results showed that although the temperature of the corn soup was 98°C, the temperature of the outer cup was 52°C, making it easy to hold in the hand, and that there was no odor from the container when eating, and the container did not deform. I couldn't see it at all.
このことから、本発明の容器は耐熱性、保温性にすぐれ
加熱後、容易に手でもつことができ、かつプラスチック
臭が食品に移行しない電子レンジ性に適した容器である
ことが明白である。From this, it is clear that the container of the present invention has excellent heat resistance and heat retention, can be easily held in the hand after heating, and is suitable for microwave use without transferring plastic odor to food. .
実施例 ２
実施例１において、内カツプ製造においてエチレン−酢
酸ビニル共重合体けん化物のかわりに。Example 2 In Example 1, the saponified ethylene-vinyl acetate copolymer was replaced in the production of the inner cup.
ポリ塩化ビニリデンを用いたほかは全く同様な製造およ
び評価を行なった。Production and evaluation were carried out in exactly the same manner except that polyvinylidene chloride was used.
その結果は、外面は非常に光沢のある美粧性の良好な容
器で酸素透過度がＯ，ｔｃｃ／２４時間、カップ、酸素
が１気圧の条件であるほかは印刷性、レトルト性、電子
レンジ性などにおいて全く同じ効果を発揮した容器であ
った。The results were a cosmetically good container with a very glossy outer surface, an oxygen permeability of O, tcc/24 hours, a cup, and an oxygen pressure of 1 atm, as well as printability, retortability, and microwave resistance. It was a container that had exactly the same effect in other cases.
実施例３
実施例１において、イージーオープン蓋の外層のポリカ
ーボネートフィルムのかわり拳こ、プロピレン単独重合
体（ＭＦＲ（１） ０．５ ｇ ／ １０分〕フィ
ルム（厚さ １０１００ＩＬを用いたほかは、実施例
１と全く同様に製造および評価を行なった。Example 3 In Example 1, a propylene homopolymer (MFR (1) 0.5 g/10 min) film (thickness 10100 IL) was used instead of the polycarbonate film for the outer layer of the easy-open lid. Production and evaluation were carried out in exactly the same manner as in Example 1.
その結果は実施例１と全く同様であった。The results were exactly the same as in Example 1.
比較例１
実施例１において、内カップの無機充填剤含有プロピレ
ン系重合体のかわりにプロピレン単独重合体（ＭＦＲ（
１） ０．５ｇ／１０分〕を用いたほかは。Comparative Example 1 In Example 1, propylene homopolymer (MFR) was used instead of the inorganic filler-containing propylene polymer in the inner cup.
1) except that 0.5 g/10 minutes] was used.
実施例１と全く同様な製造および評価を行なった。Production and evaluation were carried out in exactly the same manner as in Example 1.
その結果はレトルト処理により、内カップが変形し、商
品として著しく劣る容器となった。As a result, the inner cup was deformed during the retort process, resulting in a container that was extremely inferior as a product.
比較例２
実施例１において、内カップのプロピレン単独重合体の
かわりに、最内層を無機充填剤含有プロピレン系重合体
を用いたほぼかは、実施例１と全く同様に製造および評
価を行なった。Comparative Example 2 In Example 1, production and evaluation were carried out in exactly the same manner as in Example 1, except that instead of the propylene homopolymer in the inner cup, an inorganic filler-containing propylene polymer was used for the innermost layer. .
結果は電子レンジ処理後、喫食時コーンスープの味およ
び臭気が変化し、不快な食品になった。As a result, the taste and odor of the corn soup changed after being microwaved, making it an unpleasant food.
比較例３
実施例１において、内カツプ製造のエチレンと酢酸ビニ
ルとの共重合体けん化物の層を除いたほかは、実施例１
と全く同様に製造および評価を行なった。Comparative Example 3 Same as Example 1 except that the saponified copolymer layer of ethylene and vinyl acetate produced in the inner cup was removed.
Manufacture and evaluation were carried out in exactly the same manner.
その結果は、融素透過度が３．０ｃｃ以上７２４時間、
カップ、酸素１気圧の気体透過抵抗性の著しく劣る容器
であった。The results showed that the fusion permeability was 3.0cc or more for 724 hours,
The cup was a container with significantly poor gas permeation resistance at 1 atm of oxygen.
以上の実施例および比較例の結果から、本発明の容器は
レトルト処理が可能な耐熱容器であり、かつレトルト処
理でイージービール効果が発揮される容器であることが
明白である。From the results of the above Examples and Comparative Examples, it is clear that the container of the present invention is a heat-resistant container that can be subjected to retort treatment, and is also a container that exhibits the easy beer effect by retort treatment.
さらに１本発明の容器は酸素透過抵抗性にすぐれ、また
電子レンジ処理においても容器が変形せず、かつ保温性
にすぐれ、しかも食品の品質低下（喫食時の味および臭
気変化）を起させない容器であることが明らかである。Furthermore, the container of the present invention has excellent oxygen permeation resistance, does not deform even when processed in a microwave oven, has excellent heat retention, and does not cause deterioration in food quality (change in taste and odor when eaten). It is clear that
これに対し、比較例の場合では、耐熱性、保温性、イー
ジービール性および気体透過抵抗性のいずれも劣り、食
品の品質低下をまねくことが明白である。On the other hand, in the case of the comparative example, heat resistance, heat retention, easy beer property, and gas permeation resistance are all inferior, and it is clear that the quality of the food product is deteriorated.
１１立羞】
本発明の食品用容器は以上のように、外カップ、内カッ
プおよびイージーオープン蓋材はいずれも耐熱性にすぐ
れ、食品充填においてレトルト殺菌が可能であり、さら
に気体透過抵抗性にすぐれているためにチルド条件下で
の流通、貯蔵、陳列が可能である。As described above, the food container of the present invention has excellent heat resistance in the outer cup, inner cup, and easy-open lid material, allows retort sterilization when filling food, and has excellent gas permeation resistance. Due to its superior properties, it can be distributed, stored, and displayed under chilled conditions.
しかも電子レンジ処理も可能であり、保温性にすぐれ、
食品の品質低下がなく、喫食が可能であり、極めて高品
質かつ簡易な容器である。Moreover, it can be processed in the microwave, and has excellent heat retention.
It is an extremely high quality and simple container that can be eaten without deteriorating the quality of the food.
また、容器自体の燃焼発熱量は無機充填剤が含有させて
いるために低く、易焼却無公害であり、安全衛生性も良
く、さらに無菌包装システムと組み合せることにより無
菌充填包装としても有効である。In addition, the combustion calorific value of the container itself is low because it contains an inorganic filler, making it non-polluting when easily incinerated, and has good safety and hygiene properties.Furthermore, when combined with an aseptic packaging system, it is effective as an aseptic filling packaging. be.
代表的な用途を下記に示す。Typical uses are shown below.
（１）各種加工調味食品容器 （２）各種液体調味食品容器 （３）各種食品容器(1) Various processed seasoning food containers (2) Various liquid seasoning food containers (3) Various food containers
第１図は本発明の食品用容器の一部裁断側面図であり、
第２図は第１図のＡの拡大端面図である。また、第３図
は代表的な内カップの部分拡大断面図である。
ｌ・・・・・・内カップ、２・・・・・・外カップ３・
・・・・・イージーオープン蓋
４・・・・・・オーバーキャップ
Ａ・・・・・・外層（プロピレン系重合体層）ａ・・・
・・・内層（プロピレン系重合体層）ｂ・・・・・・中
間ｅ（無機充填剤含有プロピレン系重合体層）
ｂ・・・・・・外層（無機充填剤含有プロピレン系重合
体層）
Ｃ・・・・・・中間層（エチレン−酢酸ビニル共重合体
のけん化物層）FIG. 1 is a partially cutaway side view of the food container of the present invention,
FIG. 2 is an enlarged end view of A in FIG. Moreover, FIG. 3 is a partially enlarged sectional view of a typical inner cup. l...Inner cup, 2...Outer cup 3.
...Easy open lid 4...Overcap A...Outer layer (propylene polymer layer) a...
... Inner layer (propylene polymer layer) b ... Middle e (propylene polymer layer containing inorganic filler) b ... Outer layer (propylene polymer layer containing inorganic filler) C...Intermediate layer (saponified layer of ethylene-vinyl acetate copolymer)
Claims (1)
を具備する二重構造容器ならびに該内カップを密封し得
るイージーオープン蓋からなり、該内カップは外カップ
の口部の周縁部において係合しており、かつ両カップの
底面間および周壁間には、いずれも空隙部を有する食品
用容器であり、該外カップは２０〜７０重量％の無機充
填剤を含有する無機充填剤含有プロピレン系重合体層よ
りなり、また内カップは該カップの内層からプロピレン
系重合体層／前記無機充填剤含有プロピレン系重合体層
／接着性樹脂層／気体透過抵抗性樹脂層／接着性樹脂層
／前記無機充填剤含有プロピレン系重合体層の順に積層
されてなり、さらにイージーオープン蓋は外層としてポ
リプロピレン、ポリカーボネート、ポリエステルおよび
ポリアミドからなる群からえらばれた合成樹脂の層、中
間層として気体透過抵抗性樹脂および内層としてプロピ
レン系樹脂とエチレン系樹脂との混合物の層からなるこ
とを特徴とする食品用容器。It consists of a double structure container comprising an outer cup and an inner cup provided inside the outer cup, and an easy-open lid capable of sealing the inner cup, and the inner cup is engaged at the peripheral edge of the mouth of the outer cup. The outer cup is made of propylene containing inorganic filler containing 20 to 70% by weight of inorganic filler. The inner cup is made of a polymer layer, and the inner cup is made of a propylene polymer layer/the inorganic filler-containing propylene polymer layer/adhesive resin layer/gas permeation resistant resin layer/adhesive resin layer/the inner cup. The easy-open lid is made of propylene-based polymer layers containing an inorganic filler laminated in this order, and the easy-open lid further includes a synthetic resin layer selected from the group consisting of polypropylene, polycarbonate, polyester, and polyamide as an outer layer, and a gas permeation resistant resin as an intermediate layer. and a food container comprising an inner layer of a mixture of propylene resin and ethylene resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61247334A JPS63102935A (en) | 1986-10-20 | 1986-10-20 | Vessel for foodstuff |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61247334A JPS63102935A (en) | 1986-10-20 | 1986-10-20 | Vessel for foodstuff |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63102935A true JPS63102935A (en) | 1988-05-07 |
Family
ID=17161860
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61247334A Pending JPS63102935A (en) | 1986-10-20 | 1986-10-20 | Vessel for foodstuff |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63102935A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0245332A (en) * | 1988-07-26 | 1990-02-15 | Snow Brand Milk Prod Co Ltd | Germfree packaging container and germfree filling method |
| US5088179A (en) * | 1990-10-12 | 1992-02-18 | Jmk International, Inc. | Method of forming a microwaveable container |
| JPH0457762A (en) * | 1990-06-19 | 1992-02-25 | Hikari Kinzoku Kogyo Kk | Vacuum airtight food conserving container for use also as electronic range heating container |
| JPH0462666U (en) * | 1990-10-11 | 1992-05-28 | ||
| JPH04115130U (en) * | 1991-03-22 | 1992-10-12 | 大日本印刷株式会社 | insulated container |
| NL1011798C2 (en) | 1999-04-14 | 2000-10-17 | Stork Food & Dairy Systems Bv | Packaging container, method for manufacturing it, as well as use in aseptic packaging of products. |
| JP2006103733A (en) * | 2004-10-04 | 2006-04-20 | Fp Corp | Container and package food for microwave heating |
| JP2008230121A (en) * | 2007-03-22 | 2008-10-02 | Idemitsu Unitech Co Ltd | Laminate sheet for deep drawing, deep drawing container, and packaging container |
| JP2019182520A (en) * | 2018-04-16 | 2019-10-24 | 凸版印刷株式会社 | Microwave heating pouch |
-
1986
- 1986-10-20 JP JP61247334A patent/JPS63102935A/en active Pending
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0245332A (en) * | 1988-07-26 | 1990-02-15 | Snow Brand Milk Prod Co Ltd | Germfree packaging container and germfree filling method |
| JPH0457762A (en) * | 1990-06-19 | 1992-02-25 | Hikari Kinzoku Kogyo Kk | Vacuum airtight food conserving container for use also as electronic range heating container |
| JPH0462666U (en) * | 1990-10-11 | 1992-05-28 | ||
| US5088179A (en) * | 1990-10-12 | 1992-02-18 | Jmk International, Inc. | Method of forming a microwaveable container |
| JPH04115130U (en) * | 1991-03-22 | 1992-10-12 | 大日本印刷株式会社 | insulated container |
| NL1011798C2 (en) | 1999-04-14 | 2000-10-17 | Stork Food & Dairy Systems Bv | Packaging container, method for manufacturing it, as well as use in aseptic packaging of products. |
| EP1044889A1 (en) | 1999-04-14 | 2000-10-18 | Stork Food & Dairy Systems B.V. | Packaging container, manufacturing method thereof and use in aseptically packaging of products |
| JP2006103733A (en) * | 2004-10-04 | 2006-04-20 | Fp Corp | Container and package food for microwave heating |
| JP4523824B2 (en) * | 2004-10-04 | 2010-08-11 | 株式会社エフピコ | Microwave heating container |
| JP2008230121A (en) * | 2007-03-22 | 2008-10-02 | Idemitsu Unitech Co Ltd | Laminate sheet for deep drawing, deep drawing container, and packaging container |
| JP2019182520A (en) * | 2018-04-16 | 2019-10-24 | 凸版印刷株式会社 | Microwave heating pouch |
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