JPH04298345A - Decomposable paper container - Google Patents
Decomposable paper containerInfo
- Publication number
- JPH04298345A JPH04298345A JP3063377A JP6337791A JPH04298345A JP H04298345 A JPH04298345 A JP H04298345A JP 3063377 A JP3063377 A JP 3063377A JP 6337791 A JP6337791 A JP 6337791A JP H04298345 A JPH04298345 A JP H04298345A
- Authority
- JP
- Japan
- Prior art keywords
- degradable
- container
- paper
- plastic
- polyethylene
- 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
- 229920003023 plastic Polymers 0.000 claims abstract description 23
- 239000004033 plastic Substances 0.000 claims abstract description 23
- 239000000463 material Substances 0.000 claims abstract description 12
- 239000005022 packaging material Substances 0.000 claims description 21
- 229920006238 degradable plastic Polymers 0.000 claims description 11
- -1 polyethylene Polymers 0.000 abstract description 27
- 239000004743 Polypropylene Substances 0.000 abstract description 15
- 229920001155 polypropylene Polymers 0.000 abstract description 15
- 239000004698 Polyethylene Substances 0.000 abstract description 12
- 229920000573 polyethylene Polymers 0.000 abstract description 12
- 229920005989 resin Polymers 0.000 abstract description 12
- 239000011347 resin Substances 0.000 abstract description 12
- 241000894006 Bacteria Species 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 229920000704 biodegradable plastic Polymers 0.000 abstract 2
- 238000012856 packing Methods 0.000 abstract 1
- 229920013716 polyethylene resin Polymers 0.000 description 11
- 230000004888 barrier function Effects 0.000 description 9
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 7
- 239000005977 Ethylene Substances 0.000 description 7
- 229910002091 carbon monoxide Inorganic materials 0.000 description 7
- 229920001577 copolymer Polymers 0.000 description 7
- 244000005700 microbiome Species 0.000 description 7
- 229920000728 polyester Polymers 0.000 description 7
- 229920002472 Starch Polymers 0.000 description 5
- 229940117927 ethylene oxide Drugs 0.000 description 5
- 239000008107 starch Substances 0.000 description 5
- 235000019698 starch Nutrition 0.000 description 5
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 4
- 230000008018 melting Effects 0.000 description 4
- 238000002844 melting Methods 0.000 description 4
- 229920001610 polycaprolactone Polymers 0.000 description 4
- 239000004632 polycaprolactone Substances 0.000 description 4
- 238000000354 decomposition reaction Methods 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 229920005604 random copolymer Polymers 0.000 description 3
- 150000003839 salts Chemical class 0.000 description 3
- VXNZUUAINFGPBY-UHFFFAOYSA-N 1-Butene Chemical compound CCC=C VXNZUUAINFGPBY-UHFFFAOYSA-N 0.000 description 2
- WHBMMWSBFZVSSR-UHFFFAOYSA-M 3-hydroxybutyrate Chemical compound CC(O)CC([O-])=O WHBMMWSBFZVSSR-UHFFFAOYSA-M 0.000 description 2
- REKYPYSUBKSCAT-UHFFFAOYSA-N 3-hydroxypentanoic acid Chemical compound CCC(O)CC(O)=O REKYPYSUBKSCAT-UHFFFAOYSA-N 0.000 description 2
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 2
- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 description 2
- BAPJBEWLBFYGME-UHFFFAOYSA-N Methyl acrylate Chemical compound COC(=O)C=C BAPJBEWLBFYGME-UHFFFAOYSA-N 0.000 description 2
- 239000004372 Polyvinyl alcohol Substances 0.000 description 2
- WHBMMWSBFZVSSR-UHFFFAOYSA-N R3HBA Natural products CC(O)CC(O)=O WHBMMWSBFZVSSR-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- YRKCREAYFQTBPV-UHFFFAOYSA-N acetylacetone Chemical compound CC(=O)CC(C)=O YRKCREAYFQTBPV-UHFFFAOYSA-N 0.000 description 2
- 150000001336 alkenes Chemical class 0.000 description 2
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 description 2
- 229920001400 block copolymer Polymers 0.000 description 2
- IAQRGUVFOMOMEM-UHFFFAOYSA-N butene Natural products CC=CC IAQRGUVFOMOMEM-UHFFFAOYSA-N 0.000 description 2
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 2
- XBDQKXXYIPTUBI-UHFFFAOYSA-N dimethylselenoniopropionate Natural products CCC(O)=O XBDQKXXYIPTUBI-UHFFFAOYSA-N 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910044991 metal oxide Inorganic materials 0.000 description 2
- 150000004706 metal oxides Chemical class 0.000 description 2
- 150000007524 organic acids Chemical class 0.000 description 2
- 229920002451 polyvinyl alcohol Polymers 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- NQPDZGIKBAWPEJ-UHFFFAOYSA-N valeric acid Chemical compound CCCCC(O)=O NQPDZGIKBAWPEJ-UHFFFAOYSA-N 0.000 description 2
- LIKMAJRDDDTEIG-UHFFFAOYSA-N 1-hexene Chemical compound CCCCC=C LIKMAJRDDDTEIG-UHFFFAOYSA-N 0.000 description 1
- KWKAKUADMBZCLK-UHFFFAOYSA-N 1-octene Chemical compound CCCCCCC=C KWKAKUADMBZCLK-UHFFFAOYSA-N 0.000 description 1
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- WSSSPWUEQFSQQG-UHFFFAOYSA-N 4-methyl-1-pentene Chemical compound CC(C)CC=C WSSSPWUEQFSQQG-UHFFFAOYSA-N 0.000 description 1
- 239000005995 Aluminium silicate Substances 0.000 description 1
- 229920000298 Cellophane Polymers 0.000 description 1
- JIGUQPWFLRLWPJ-UHFFFAOYSA-N Ethyl acrylate Chemical compound CCOC(=O)C=C JIGUQPWFLRLWPJ-UHFFFAOYSA-N 0.000 description 1
- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Natural products OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 description 1
- 244000017020 Ipomoea batatas Species 0.000 description 1
- 235000002678 Ipomoea batatas Nutrition 0.000 description 1
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 description 1
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 description 1
- 244000061456 Solanum tuberosum Species 0.000 description 1
- 235000002595 Solanum tuberosum Nutrition 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- 235000021307 Triticum Nutrition 0.000 description 1
- 241000209140 Triticum Species 0.000 description 1
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 1
- 240000008042 Zea mays Species 0.000 description 1
- 235000005824 Zea mays ssp. parviglumis Nutrition 0.000 description 1
- 235000002017 Zea mays subsp mays Nutrition 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical class [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 235000012211 aluminium silicate Nutrition 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 239000002216 antistatic agent Substances 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- GBAOBIBJACZTNA-UHFFFAOYSA-L calcium sulfite Chemical compound [Ca+2].[O-]S([O-])=O GBAOBIBJACZTNA-UHFFFAOYSA-L 0.000 description 1
- 235000010261 calcium sulphite Nutrition 0.000 description 1
- 125000004432 carbon atom Chemical group C* 0.000 description 1
- 125000002915 carbonyl group Chemical group [*:2]C([*:1])=O 0.000 description 1
- BTVVNGIPFPKDHO-UHFFFAOYSA-K cerium(3+);octadecanoate Chemical compound [Ce+3].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O BTVVNGIPFPKDHO-UHFFFAOYSA-K 0.000 description 1
- AMFIJXSMYBKJQV-UHFFFAOYSA-L cobalt(2+);octadecanoate Chemical compound [Co+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O AMFIJXSMYBKJQV-UHFFFAOYSA-L 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 235000005822 corn Nutrition 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- SZRLKIKBPASKQH-UHFFFAOYSA-M dibutyldithiocarbamate Chemical compound CCCCN(C([S-])=S)CCCC SZRLKIKBPASKQH-UHFFFAOYSA-M 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 229920001519 homopolymer Polymers 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 239000011256 inorganic filler Substances 0.000 description 1
- 229910003475 inorganic filler Inorganic materials 0.000 description 1
- 238000007733 ion plating Methods 0.000 description 1
- FRVCGRDGKAINSV-UHFFFAOYSA-L iron(2+);octadecanoate Chemical compound [Fe+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O FRVCGRDGKAINSV-UHFFFAOYSA-L 0.000 description 1
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 1
- 238000010169 landfilling Methods 0.000 description 1
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 description 1
- 239000001095 magnesium carbonate Substances 0.000 description 1
- 229910000021 magnesium carbonate Inorganic materials 0.000 description 1
- 229910052943 magnesium sulfate Inorganic materials 0.000 description 1
- 235000019341 magnesium sulphate Nutrition 0.000 description 1
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 description 1
- 230000000813 microbial effect Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 239000010816 packaging waste Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- UCUUFSAXZMGPGH-UHFFFAOYSA-N penta-1,4-dien-3-one Chemical class C=CC(=O)C=C UCUUFSAXZMGPGH-UHFFFAOYSA-N 0.000 description 1
- PNJWIWWMYCMZRO-UHFFFAOYSA-N pent‐4‐en‐2‐one Natural products CC(=O)CC=C PNJWIWWMYCMZRO-UHFFFAOYSA-N 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 235000012015 potatoes Nutrition 0.000 description 1
- 235000019260 propionic acid Nutrition 0.000 description 1
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 1
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 1
- 229920001384 propylene homopolymer Polymers 0.000 description 1
- IUVKMZGDUIUOCP-BTNSXGMBSA-N quinbolone Chemical compound O([C@H]1CC[C@H]2[C@H]3[C@@H]([C@]4(C=CC(=O)C=C4CC3)C)CC[C@@]21C)C1=CCCC1 IUVKMZGDUIUOCP-BTNSXGMBSA-N 0.000 description 1
- 238000007151 ring opening polymerisation reaction Methods 0.000 description 1
- 150000004760 silicates Chemical class 0.000 description 1
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- 238000001771 vacuum deposition Methods 0.000 description 1
- 229940005605 valeric acid Drugs 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
- PAPBSGBWRJIAAV-UHFFFAOYSA-N ε-Caprolactone Chemical compound O=C1CCCCCO1 PAPBSGBWRJIAAV-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W90/00—Enabling technologies or technologies with a potential or indirect contribution to greenhouse gas [GHG] emissions mitigation
- Y02W90/10—Bio-packaging, e.g. packing containers made from renewable resources or bio-plastics
Landscapes
- Cartons (AREA)
- Laminated Bodies (AREA)
- Biological Depolymerization Polymers (AREA)
Abstract
Description
【０００１】0001
【産業上の利用分野】本発明は、分解性を有し、かつヒ
ートシール可能である分解性紙容器に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a degradable paper container that is degradable and heat-sealable.
【０００２】0002
【従来の技術】従来、食品、日用品、産業用部材の包装
に用いられるプラスチック製の包装材料の廃棄物処理は
焼却、埋め立てにより行われている。しかし、焼却する
場合、包装材料廃棄物の大きな燃焼エネルギーに耐え得
る耐高熱炉が必要になり、処理コストが高いものとなる
。2. Description of the Related Art Conventionally, waste disposal of plastic packaging materials used for packaging foods, daily necessities, and industrial parts has been carried out by incineration or landfill. However, incineration requires a high-temperature resistant furnace that can withstand the large amount of combustion energy of packaging waste, resulting in high processing costs.
【０００３】また、埋め立ての場合、プラスチック製の
包装材料は分解せずそのままの形態で地中に存在するの
で、埋め立て地の地盤が安定しないという問題がある。
さらに、地上に散乱した包装材料は、分解性がないため
半永久的にゴミとして残り、環境を損なうという問題が
ある。このような問題を解決するために、いわゆる分解
性を有するプラスチックを用いた包材が提案されている
。分解性プラスチックは、光や微生物のより分解される
ので、環境の汚染等を防止するのに役立ち、近年、特に
脚光を浴びている。[0003] Furthermore, in the case of landfilling, there is a problem that the ground of the landfill site is unstable because plastic packaging materials do not decompose and remain in the ground as they are. Furthermore, since the packaging materials scattered on the ground are not degradable, they remain as garbage semi-permanently, which poses a problem of damaging the environment. In order to solve these problems, packaging materials using so-called degradable plastics have been proposed. Degradable plastics are decomposed by light and microorganisms, so they are useful for preventing environmental pollution, and have been in the spotlight in recent years.
【０００４】0004
【発明が解決しようとする課題】しかしながら、従来の
提案のものでは、包材機能としてヒートシール性を付与
しようとすると、分解性を有しない材料が混在され、容
器を形成するにヒートシール性の機能を有しかつ、包材
全体として分解性を備えるものは従来存在していなかっ
た。[Problems to be Solved by the Invention] However, in the conventional proposals, when trying to impart heat-sealability as a packaging material function, materials that do not have degradability are mixed in, making it difficult to form a container with heat-sealability. Conventionally, there has been no packaging material that has both functionality and is degradable as a whole.
【０００５】このように実情のもの本発明は創案された
ものであって、その目的は、ヒートシール性の機能を有
しかつ、包材全体として分解性を備える分解性紙容器を
提供することにある。[0005] In view of the above-mentioned circumstances, the present invention was invented, and its purpose is to provide a degradable paper container which has a heat-sealing function and whose packaging material as a whole is degradable. It is in.
【０００６】[0006]
【課題を解決するための手段】上記課題を解決するため
に、本発明は紙を基材として、この紙の両面に直接また
は中間層を介してそれぞれ形成されたプラスチック層を
備える包材から形成した紙容器であって、前記プラスチ
ック層は分解性プラスチックであり、容器の最内層はヒ
ートシール可能な分解性プラスチックであるように構成
した。[Means for Solving the Problems] In order to solve the above problems, the present invention provides a packaging material made of paper as a base material and having plastic layers formed on both sides of the paper either directly or through an intermediate layer. The paper container is constructed such that the plastic layer is a degradable plastic, and the innermost layer of the container is a heat-sealable degradable plastic.
【０００７】[0007]
【作用】本発明の分解性紙容器は、紙と分解性プラスチ
ックとを組み合わせた容器であり、かつ容器の最内層は
ヒートシール可能な分解性プラスチックを有し構成され
る。従って、ヒートシール性の機能を有しかつ、容器全
体として分解性を備える。[Operation] The degradable paper container of the present invention is a container made of a combination of paper and degradable plastic, and the innermost layer of the container is made of heat-sealable degradable plastic. Therefore, the container has a heat-sealing function and is degradable as a whole.
【０００８】[0008]
【実施例】以下、本発明の実施例について、図１乃至図
４を参照しつつ説明する。本発明の分解性紙容器の一例
として、ゲーベルトップタイプの容器を例にとって説明
する。図１に示されるようにゲーベルトップタイプの容
器１は包材５０を用いて形成されており、容器１は胴部
６０とこの胴部６０に連設された頂部７０とを有してい
る。頂部７０の傾斜パネル７１には開口部８０が形成さ
れており、この開口部８０には注出口成形体９０が装着
されている。Embodiments Examples of the present invention will be described below with reference to FIGS. 1 to 4. As an example of the degradable paper container of the present invention, a Goebel top type container will be explained as an example. As shown in FIG. 1, the Goebel top type container 1 is formed using a packaging material 50, and has a body 60 and a top 70 connected to the body 60. An opening 80 is formed in the inclined panel 71 of the top part 70, and a spout molded body 90 is attached to this opening 80.
【０００９】図２には、容器１を形成している包材の一
実施例としての部分断面図が示される。図２に示される
ように包材５０は、紙４０を基材として、この紙４０の
両面に直接形成されたプラスチック層１１，１５をそれ
ぞれ備える。プラスチック層１１，１５は、分解性プラ
スチック、特に、分解性ポリエチレン樹脂、分解性ポリ
プロピレン樹脂で形成される。分解性ポリエチレン樹脂
および分解性ポリプロピレン樹脂は、それぞれポリエチ
レンおよびポリプロピレンを主成分とし光や微生物によ
り分解され得る樹脂である。FIG. 2 shows a partial cross-sectional view of one embodiment of the packaging material forming the container 1. As shown in FIG. As shown in FIG. 2, the packaging material 50 includes a paper 40 as a base material and plastic layers 11 and 15 formed directly on both sides of the paper 40, respectively. The plastic layers 11 and 15 are made of degradable plastic, particularly degradable polyethylene resin or degradable polypropylene resin. Degradable polyethylene resin and degradable polypropylene resin are resins that contain polyethylene and polypropylene as main components, respectively, and can be decomposed by light or microorganisms.
【００１０】分解性ポリエチレン樹脂のうち、光分解性
のものとしては、エチレンと一酸化炭素との共重合体等
が挙げられる。このエチレン・一酸化炭素共重合体は、
カルボニル基との結合する２番目と３番目の炭素間が光
で開裂することにより分解すると言われている。そして
、分解速度は共重合体中の一酸化炭素の含有量により調
節することができる。通常、エチレン・一酸化炭素共重
合体の密度は０．８９〜０．９５ｇ／ｃｍ３ 程度であ
り、一酸化炭素の含有量は０．１〜１０モル％程度であ
る。Among the degradable polyethylene resins, photodegradable ones include copolymers of ethylene and carbon monoxide. This ethylene/carbon monoxide copolymer is
It is said that decomposition occurs when the second and third carbon atoms bonded to the carbonyl group are cleaved by light. The decomposition rate can be controlled by the carbon monoxide content in the copolymer. Usually, the density of the ethylene/carbon monoxide copolymer is about 0.89 to 0.95 g/cm@3, and the carbon monoxide content is about 0.1 to 10 mol%.
【００１１】上述のようなエチレン・一酸化炭素共重合
体は、例えばエチレンと一酸化炭素とを温度２３０℃、
圧力２０００気圧程度の条件下で共存させることにより
製造することができる。また、光分解性の分解性ポリエ
チレン樹脂又はポリプロピレン樹脂として、ポリエチレ
ン（密度０．８７０〜０．９５０ｇ／ｃｍ３ 、溶融指
数（ＭＦＩ）０．４〜４０）やポリプロピレン（密度０
．８７〜０．９１ｇ／ｃｍ３ 、溶融指数（ＭＦＩ）０
．３〜５０）と有機酸金属塩との混合物を用いることも
できる。有機酸金属塩としては、ステアリン酸鉄、ステ
アリン酸セリウム、ステアリン酸コバルト等があり、酸
化鉄等の金属酸化物、アセチルアセトン、ジブチルジチ
オカーバメートとの錯体等が挙げられ、有機酸金属塩の
混合量は１〜５０００ｐｐｍ 程度が好ましい。また、
ビニルケトンとの共重合体を添加することもある。[0011] The above-mentioned ethylene/carbon monoxide copolymer can be prepared by, for example, mixing ethylene and carbon monoxide at a temperature of 230°C.
It can be produced by allowing them to coexist under conditions of a pressure of about 2000 atmospheres. In addition, as photodegradable polyethylene resin or polypropylene resin, polyethylene (density 0.870 to 0.950 g/cm3, melting index (MFI) 0.4 to 40) and polypropylene (density 0
．． 87-0.91g/cm3, melting index (MFI) 0
．． 3 to 50) and an organic acid metal salt can also be used. Examples of organic acid metal salts include iron stearate, cerium stearate, cobalt stearate, etc., and complexes with metal oxides such as iron oxide, acetylacetone, dibutyl dithiocarbamate, etc. is preferably about 1 to 5000 ppm. Also,
Copolymers with vinyl ketones may also be added.
【００１２】また、分解性ポリエチレン樹脂や分解性ポ
リプロピレン樹脂のうち、微生物分解性のものとしては
、ポリエチレンと、ポリカプロラクトン、デンプンおよ
び微生物により重合されるポリエステル等との混合物が
挙げられる。生分解性ポリエチレン樹脂に用いられるポ
リエチレンとしては、密度０．８７０〜０．９５０ｇ／
ｃｍ３ 、溶融指数（ＭＩ）０．４〜４０のエチレンの
単独重合体、もしくはプロピレン、ブテン、ヘキセン、
オクテン、４−メチルペンテン−１等の他のオレフィン
とのランダムあるいはブロック共重合体、さらには酢酸
ビニル、アクリル酸、メタクリル酸、アクリル酸メチル
、アクリル酸エチル、メタクリル酸メチル、無水マレイ
ン酸等のエチレン性不飽和基を有する単量体との共重合
体等が挙げられる。ポリプロピレンは、密度０．８７〜
０．９１ｇ／ｃｍ３ 、溶融指数（ＭＦＩ）０．３〜５
０のプロピレン単独重合体もしくは、エチレン、ブテン
等の他のオレフィンとのランダムあるいブロック共重合
体が挙げられる。[0012] Among degradable polyethylene resins and degradable polypropylene resins, those degradable by microorganisms include mixtures of polyethylene, polycaprolactone, starch, and polyesters polymerized by microorganisms. The polyethylene used for biodegradable polyethylene resin has a density of 0.870 to 0.950 g/
cm3, a homopolymer of ethylene with a melting index (MI) of 0.4 to 40, or propylene, butene, hexene,
Random or block copolymers with other olefins such as octene and 4-methylpentene-1, as well as vinyl acetate, acrylic acid, methacrylic acid, methyl acrylate, ethyl acrylate, methyl methacrylate, maleic anhydride, etc. Examples include copolymers with monomers having ethylenically unsaturated groups. Polypropylene has a density of 0.87~
0.91g/cm3, melting index (MFI) 0.3-5
0 propylene homopolymers, or random or block copolymers with other olefins such as ethylene and butene.
【００１３】また、生分解性ポリエチレン樹脂に用いら
れるポリカプロラクトンは、ε−カプロラクトンの開環
重合により得られ、その重量平均分子量（Ｍｗ）は、通
常、４０，０００〜１０，０００程度である。また、デ
ンプンは、Ｄ−グルコースの重合体であり、ジャガイモ
、サツマイモ、トウモロコシ、小麦等の茎や根から工業
的に製造されるものであり、その重量平均分子量（Ｍｗ
）は原料、製法により数万から数千万まで大きく変化す
る。このようなデンプンの平均粒径は１０μｍ以下が好
ましい。[0013] Polycaprolactone used in the biodegradable polyethylene resin is obtained by ring-opening polymerization of ε-caprolactone, and its weight average molecular weight (Mw) is usually about 40,000 to 10,000. In addition, starch is a polymer of D-glucose and is industrially produced from the stems and roots of potatoes, sweet potatoes, corn, wheat, etc., and its weight average molecular weight (Mw
) varies greatly, from tens of thousands to tens of millions, depending on the raw materials and manufacturing method. The average particle size of such starch is preferably 10 μm or less.
【００１４】生分解性ポリエチレン樹脂に用いられる微
生物により重合されるポリエステルとしては、３−ヒド
ロキシブチレートと３−ヒドロキシバリレートとのラン
ダム共重合ポリエステル（例えば、英国Ｉ．Ｃ．Ｉ．社
により生産されている水素細菌にプロピオン酸を供給し
て得られるもの）や、水素細菌に吉草酸を供給して得ら
れる３−ヒドロキシブチレート主体のポリエステル等が
挙げられる。Polyesters polymerized by microorganisms used in biodegradable polyethylene resins include random copolymer polyesters of 3-hydroxybutyrate and 3-hydroxyvalerate (for example, polyesters produced by I.C.I., UK). (obtained by supplying propionic acid to hydrogen bacteria) and 3-hydroxybutyrate-based polyesters obtained by supplying valeric acid to hydrogen bacteria.
【００１５】上述のような生分解性ポリエチレンやポリ
プロピレン樹脂におけるポリカプロラクトン、デンプン
および微生物により重合されるポリエステルとの混合量
は、ポリエチレンまたはポリプロピレンと上記各混合成
分の合計を１００重量％として、それぞれ５〜８０重量
％が好ましい。上記各成分の混合量が５重量％未満では
、微生物分解性が不十分であり、また８０重量％を越え
ると強度的に弱くなってしまう。The amount of polycaprolactone, starch, and polyester polymerized by microorganisms in the above-mentioned biodegradable polyethylene or polypropylene resin is 5% by weight, assuming that the total of the polyethylene or polypropylene and each of the above mixed components is 100% by weight. ~80% by weight is preferred. If the mixing amount of each of the above components is less than 5% by weight, the microbial degradability will be insufficient, and if it exceeds 80% by weight, the strength will be weakened.
【００１６】なお、ポリカプロラクトン、デンプンおよ
び微生物により重合されるポリエステルの各成分は２種
以上を用いてもよいが、その場合、混合量は合計で５〜
８０重量％の範囲となればよい。また、微生物分解性の
ポリエチレン樹脂の原料として前述の光分解性のポリエ
チレン樹脂を用いることにより、光分解性と微生物分解
性を兼ね備えた分解性ポリエチレン樹脂を得ることがで
きる。[0016] Note that two or more of each component of polycaprolactone, starch, and polyester polymerized by microorganisms may be used, but in that case, the total mixing amount is 5 to 5.
The content may be in the range of 80% by weight. Furthermore, by using the photodegradable polyethylene resin described above as a raw material for the microbially degradable polyethylene resin, it is possible to obtain a degradable polyethylene resin that is both photodegradable and microbially degradable.
【００１７】なお、このような分解性のポリエチレンな
いしポリプロピレン樹脂を含有するプラスチック層の中
には、強度を上げるために、炭酸カルシウム、炭酸マグ
ネシウム、硫酸カルシウム、亜硫酸カルシウム、硫酸バ
リウム、硫酸マグネシウム等の金属塩、ケイ酸あるいは
カオリン、タルク等のケイ酸塩、酸化チタン、酸化亜鉛
等の金属酸化物および水酸化アルミニウム、アルミナ等
のアルミニウム化合物等の無機質充填剤を含有させても
よい。さらに酸化防止剤、分解促進剤、安定剤、帯電防
止剤、界面活性剤等の各種添加剤を含有させてもよい。[0017] In order to increase the strength, calcium carbonate, magnesium carbonate, calcium sulfate, calcium sulfite, barium sulfate, magnesium sulfate, etc. are added to the plastic layer containing such degradable polyethylene or polypropylene resin. Inorganic fillers such as metal salts, silicic acid or silicates such as kaolin and talc, metal oxides such as titanium oxide and zinc oxide, and aluminum compounds such as aluminum hydroxide and alumina may be contained. Furthermore, various additives such as antioxidants, decomposition promoters, stabilizers, antistatic agents, and surfactants may be included.
【００１８】このような分解性のポリエチレンないしポ
リプロピレン樹脂を含有するプラスチック層１１，１５
、特に容器の最内層であるプラスチック層１１は、それ
ぞれ、分解性を有することはもとより、ヒートシール性
をも有する。従って、容器を形成するにあたりプラスチ
ック層同士を重ね合わせて融着することもできる。容器
外側のプラスチック層１５の表面側１５ａまたは接合面
側１５ｂには必要に応じて所定の印刷等が施される。Plastic layers 11 and 15 containing such degradable polyethylene or polypropylene resin
In particular, the plastic layer 11, which is the innermost layer of the container, has not only degradability but also heat sealability. Therefore, plastic layers can be superimposed and fused together to form a container. A predetermined printing or the like is applied to the surface side 15a or the joint surface side 15b of the plastic layer 15 on the outside of the container, if necessary.
【００１９】なお、上記図２に示される包材５０は、通
常、紙４０を基材として、その両面側からプラスチック
層１１，１５を押し出して形成される。なお、容器１の
開口部を形成する部品である注出口成形体９０もまた、
上述の分解性のポリエチレンまたはポリプロピレン樹脂
から形成することが好ましい。一般には、射出成形によ
り形成される。The packaging material 50 shown in FIG. 2 is usually formed by using paper 40 as a base material and extruding the plastic layers 11 and 15 from both sides thereof. Note that the spout molded body 90, which is a component that forms the opening of the container 1, also
It is preferably formed from the above-mentioned degradable polyethylene or polypropylene resin. Generally, it is formed by injection molding.
【００２０】次いで、図３に基づいて本発明の第二実施
例に用いられ得る包材について説明する。符号が同一で
ある部材は前記第一実施例（図２）のそれらと同一部材
を示す。図３に示される第二実施例と前記第一実施例（
図２）との包材の根本的な相違点はプラスチック層１１
と紙４０の間に、さらに分解性を有する中間層２０が形
成されている点にある。中間層２０は、ポリビニルアル
コールまたはセロハンから形成される。このような材質
からなる中間層２０もまた、分解性を有する。この実施
例の場合も前記第一実施例と同様に、容器外側のプラス
チック層１５の表面側１５ａまたは接合面側１５ｂに必
要に応じて所定の印刷等が施される。Next, a packaging material that can be used in the second embodiment of the present invention will be explained based on FIG. Members with the same reference numerals indicate the same members as those in the first embodiment (FIG. 2). The second embodiment shown in FIG. 3 and the first embodiment (
The fundamental difference in the packaging material from Figure 2) is the plastic layer 11.
An intermediate layer 20 having degradability is further formed between the paper 40 and the paper 40. Intermediate layer 20 is formed from polyvinyl alcohol or cellophane. The intermediate layer 20 made of such a material is also degradable. In this embodiment, as in the first embodiment, predetermined printing or the like is applied to the surface side 15a or the bonding surface side 15b of the plastic layer 15 on the outside of the container as necessary.
【００２１】次いで、図４に基づいて本発明の第三実施
例に用いられ得る包材について説明する。符号が同一で
ある部材は前記第一実施例（図２）のそれらと同一部材
を示す。図４に示される第三実施例と前記第一実施例（
図２）との包材の根本的な相違点はプラスチック層１１
と紙４０の間に、さらにバリア性を有するバリア中間層
３０が形成されている点にある。このバリア中間層３０
は、ベース材３２と、このベース材３２に蒸着されたバ
リア層３１とを有する．ベース材３２は、ポリビニルア
ルコールから形成される。また、バリア層３１は、シリ
カまたはアルミニウムを蒸着することによって形成され
る。蒸着は、真空蒸着法、スパッタリング法またはイオ
ンプレーティング法のいずれかの方法による。このよう
なバリア層３１の厚さは、通常、１００〜２０００Å程
度である。このようなバリア中間層３０を設けることに
より、ガスバリア性、水蒸気バリア性は格段と向上する
。この実施例の場合も前記第一実施例と同様に、容器外
側のプラスチック層１５の表面側１５ａまたは接合面側
１５ｂに必要に応じて所定の印刷等が施される。Next, a packaging material that can be used in the third embodiment of the present invention will be explained based on FIG. Members with the same reference numerals indicate the same members as those in the first embodiment (FIG. 2). The third embodiment shown in FIG. 4 and the first embodiment (
The fundamental difference in the packaging material from Figure 2) is the plastic layer 11.
A barrier intermediate layer 30 having barrier properties is further formed between the paper 40 and the paper 40. This barrier intermediate layer 30
has a base material 32 and a barrier layer 31 deposited on the base material 32. The base material 32 is formed from polyvinyl alcohol. Further, the barrier layer 31 is formed by depositing silica or aluminum. Vapor deposition is performed by a vacuum evaporation method, a sputtering method, or an ion plating method. The thickness of such barrier layer 31 is usually about 100 to 2000 Å. By providing such a barrier intermediate layer 30, gas barrier properties and water vapor barrier properties are significantly improved. In this embodiment, as in the first embodiment, predetermined printing or the like is applied to the surface side 15a or the bonding surface side 15b of the plastic layer 15 on the outside of the container as necessary.
【００２２】以上、本発明の分解性紙容器の一例として
、ゲーベルトップタイプの容器を例にとって説明してき
たが、この形態の容器に限定されるものではなく、紙コ
ップや各種トレーの容器に適用できることは勿論である
。Although the degradable paper container of the present invention has been explained above using a Goebel top type container as an example, it is not limited to this type of container, and can be applied to paper cups and various tray containers. Of course it can be done.
【００２３】[0023]
【発明の効果】本発明の分解性紙容器は、紙を基材とし
て、この紙の両面に直接または中間層を介してそれぞれ
形成されたプラスチック層を備える包材から形成した紙
容器であって、前記プラスチック層は分解性プラスチッ
クであり、容器の最内層はヒートシール可能な分解性プ
ラスチックであるように形成したので、ヒートシール性
の機能を有しかつ、容器全体として分解性を備えるとい
う効果を奏する。Effects of the Invention The degradable paper container of the present invention is a paper container formed from a packaging material that uses paper as a base material and has plastic layers formed on both sides of the paper, either directly or through an intermediate layer. Since the plastic layer is made of degradable plastic and the innermost layer of the container is made of heat-sealable degradable plastic, the container as a whole has a heat-sealable function and is degradable. play.
【図１】本発明の分解性紙容器の一例であるゲーベルト
ップタイプの容器の斜視図である。FIG. 1 is a perspective view of a Goebel top type container, which is an example of the degradable paper container of the present invention.
【図２】本発明の容器に用いられる包材の層構成を示す
部分断面図である。FIG. 2 is a partial cross-sectional view showing the layered structure of the packaging material used in the container of the present invention.
【図３】本発明の容器に用いられる包材の他の層構成を
示す部分断面図である。FIG. 3 is a partial cross-sectional view showing another layer structure of the packaging material used in the container of the present invention.
【図４】本発明の容器に用いられる包材の他の層構成を
示す部分断面図である。FIG. 4 is a partial cross-sectional view showing another layer structure of the packaging material used in the container of the present invention.
１１，１５ プラスチック層 ４０ 紙 11,15 Plastic layer 40 Paper
Claims (1)
または中間層を介してそれぞれ形成されたプラスチック
層を備える包材から形成した紙容器であって、前記プラ
スチック層は分解性プラスチックであり、容器の最内層
はヒートーシール可能な分解性プラスチックであること
を特徴とする分解性紙容器。1. A paper container made of a packaging material that uses paper as a base material and has plastic layers formed on both sides of the paper either directly or through an intermediate layer, the plastic layers being made of degradable plastic. A degradable paper container characterized in that the innermost layer of the container is a heat-sealable degradable plastic.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3063377A JPH04298345A (en) | 1991-03-27 | 1991-03-27 | Decomposable paper container |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3063377A JPH04298345A (en) | 1991-03-27 | 1991-03-27 | Decomposable paper container |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04298345A true JPH04298345A (en) | 1992-10-22 |
Family
ID=13227548
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3063377A Pending JPH04298345A (en) | 1991-03-27 | 1991-03-27 | Decomposable paper container |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04298345A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1994009210A1 (en) * | 1992-10-16 | 1994-04-28 | Pearlstein, Leonard | Compostable packaging for containment of liquids |
| JPH06278741A (en) * | 1993-03-25 | 1994-10-04 | Toppan Printing Co Ltd | Plastic paper container |
| JP2008013236A (en) * | 2006-07-08 | 2008-01-24 | Nihon Tetra Pak Kk | Paper packaging container and its manufacturing method |
| JP2008189341A (en) * | 2007-02-02 | 2008-08-21 | Dainippon Printing Co Ltd | Paper container for microwave oven |
| US7707803B2 (en) | 2001-02-05 | 2010-05-04 | Ishida Co., Ltd. | Biodegradable bags for packing foods available in high speed production |
-
1991
- 1991-03-27 JP JP3063377A patent/JPH04298345A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1994009210A1 (en) * | 1992-10-16 | 1994-04-28 | Pearlstein, Leonard | Compostable packaging for containment of liquids |
| JPH06278741A (en) * | 1993-03-25 | 1994-10-04 | Toppan Printing Co Ltd | Plastic paper container |
| US7707803B2 (en) | 2001-02-05 | 2010-05-04 | Ishida Co., Ltd. | Biodegradable bags for packing foods available in high speed production |
| JP2008013236A (en) * | 2006-07-08 | 2008-01-24 | Nihon Tetra Pak Kk | Paper packaging container and its manufacturing method |
| JP2008189341A (en) * | 2007-02-02 | 2008-08-21 | Dainippon Printing Co Ltd | Paper container for microwave oven |
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