JPH07257594A - Plastic refuse bag - Google Patents
Plastic refuse bagInfo
- Publication number
- JPH07257594A JPH07257594A JP4839594A JP4839594A JPH07257594A JP H07257594 A JPH07257594 A JP H07257594A JP 4839594 A JP4839594 A JP 4839594A JP 4839594 A JP4839594 A JP 4839594A JP H07257594 A JPH07257594 A JP H07257594A
- Authority
- JP
- Japan
- Prior art keywords
- particles
- combustion
- spindle
- plastic
- garbage bag
- 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.)
- Granted
Links
- 229920003023 plastic Polymers 0.000 title claims abstract description 28
- 239000004033 plastic Substances 0.000 title claims abstract description 28
- 239000002245 particle Substances 0.000 claims abstract description 69
- SZVJSHCCFOBDDC-UHFFFAOYSA-N iron(II,III) oxide Inorganic materials O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 claims abstract description 30
- 229920005992 thermoplastic resin Polymers 0.000 claims abstract description 14
- 239000002352 surface water Substances 0.000 claims abstract description 13
- 239000000203 mixture Substances 0.000 claims abstract description 6
- 229960004887 ferric hydroxide Drugs 0.000 claims description 11
- IEECXTSVVFWGSE-UHFFFAOYSA-M iron(3+);oxygen(2-);hydroxide Chemical compound [OH-].[O-2].[Fe+3] IEECXTSVVFWGSE-UHFFFAOYSA-M 0.000 claims description 11
- 238000002485 combustion reaction Methods 0.000 abstract description 40
- 239000001301 oxygen Substances 0.000 abstract description 23
- 229910052760 oxygen Inorganic materials 0.000 abstract description 23
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 22
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 abstract description 22
- NDLPOXTZKUMGOV-UHFFFAOYSA-N oxo(oxoferriooxy)iron hydrate Chemical compound O.O=[Fe]O[Fe]=O NDLPOXTZKUMGOV-UHFFFAOYSA-N 0.000 abstract description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 7
- 239000000126 substance Substances 0.000 abstract description 6
- 235000002918 Fraxinus excelsior Nutrition 0.000 abstract 1
- 239000002956 ash Substances 0.000 abstract 1
- 239000008187 granular material Substances 0.000 abstract 1
- 230000000052 comparative effect Effects 0.000 description 20
- 238000000034 method Methods 0.000 description 16
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 10
- 239000007864 aqueous solution Substances 0.000 description 8
- 229910052598 goethite Inorganic materials 0.000 description 8
- AEIXRCIKZIZYPM-UHFFFAOYSA-M hydroxy(oxo)iron Chemical compound [O][Fe]O AEIXRCIKZIZYPM-UHFFFAOYSA-M 0.000 description 8
- 229920001684 low density polyethylene Polymers 0.000 description 8
- 239000004702 low-density polyethylene Substances 0.000 description 8
- 239000013585 weight reducing agent Substances 0.000 description 8
- 239000010849 combustible waste Substances 0.000 description 7
- 239000013502 plastic waste Substances 0.000 description 6
- 229910000019 calcium carbonate Inorganic materials 0.000 description 5
- 239000000428 dust Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- -1 polyethylene Polymers 0.000 description 5
- 239000002699 waste material Substances 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 4
- 229920013716 polyethylene resin Polymers 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 230000018044 dehydration Effects 0.000 description 3
- 238000006297 dehydration reaction Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 230000001737 promoting effect Effects 0.000 description 3
- 230000004580 weight loss Effects 0.000 description 3
- HGUFODBRKLSHSI-UHFFFAOYSA-N 2,3,7,8-tetrachloro-dibenzo-p-dioxin Chemical compound O1C2=CC(Cl)=C(Cl)C=C2OC2=C1C=C(Cl)C(Cl)=C2 HGUFODBRKLSHSI-UHFFFAOYSA-N 0.000 description 2
- 229920001410 Microfiber Polymers 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 239000006229 carbon black Substances 0.000 description 2
- 230000003197 catalytic effect Effects 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 230000005294 ferromagnetic effect Effects 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 description 2
- 230000005389 magnetism Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000006386 neutralization reaction Methods 0.000 description 2
- 229910000480 nickel oxide Inorganic materials 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 2
- GNRSAWUEBMWBQH-UHFFFAOYSA-N oxonickel Chemical compound [Ni]=O GNRSAWUEBMWBQH-UHFFFAOYSA-N 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 239000002244 precipitate Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 2
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 1
- 235000017491 Bambusa tulda Nutrition 0.000 description 1
- 241001330002 Bambuseae Species 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 description 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 1
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 230000003078 antioxidant effect Effects 0.000 description 1
- 239000011425 bamboo Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 238000006356 dehydrogenation reaction Methods 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 229910003439 heavy metal oxide Inorganic materials 0.000 description 1
- 229920001903 high density polyethylene Polymers 0.000 description 1
- 239000004700 high-density polyethylene Substances 0.000 description 1
- 239000011256 inorganic filler Substances 0.000 description 1
- 229910003475 inorganic filler Inorganic materials 0.000 description 1
- 150000002505 iron Chemical class 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- 238000010169 landfilling Methods 0.000 description 1
- 229920000092 linear low density polyethylene Polymers 0.000 description 1
- 239000004707 linear low-density polyethylene Substances 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 239000012766 organic filler Substances 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 238000002411 thermogravimetry Methods 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
- 229910000859 α-Fe Inorganic materials 0.000 description 1
- 229910006540 α-FeOOH Inorganic materials 0.000 description 1
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、優れた燃焼効率が付与
されたプラスチック製ごみ袋、詳述すれば、低温、低酸
素濃度条件下においても、燃焼促進作用により焼却後の
残灰を少なくすることができるプラスチック製ごみ袋に
関するものである。BACKGROUND OF THE INVENTION The present invention relates to a plastic garbage bag having excellent combustion efficiency, and more specifically, to reduce residual ash after incineration due to its combustion promoting action even under low temperature and low oxygen concentration conditions. It relates to a plastic garbage bag that can be.
【０００２】[0002]
【従来の技術】近年、生活様式の変化や生活水準、所得
水準の向上等により、新しい商品があふれ、豊かな物質
文化が形成されたが、これにともない、家庭から排出さ
れるごみの量も急増しており、ごみ処理の問題は大きな
社会問題となっている。2. Description of the Related Art In recent years, new products have overflowed and a rich material culture has been formed due to changes in lifestyles, improvements in living standards, income levels, etc. The number is rapidly increasing, and the problem of waste management has become a major social problem.
【０００３】これらごみの処理のうち、可燃ごみに関し
ては、一般にポリエチレン樹脂で代表される熱可塑性樹
脂に各種顔料を添加した黒色あるいは青色のプラスチッ
ク製ごみ袋に詰められたごみを焼却炉で焼却し、焼却後
の残灰や燃え残りは埋立処分するという方法が採られて
いる。[0003] Of these wastes, combustible wastes are generally burned in an incinerator in a black or blue plastic waste bag made by adding various pigments to a thermoplastic resin typified by polyethylene resin. The method of landfilling the residual ash and unburned residue after incineration is adopted.
【０００４】しかしながら、可燃ごみの焼却処理には以
下のような問題があった。すなわち、燃焼中に発生する
ＮＯｘによる大気汚染、焼却後に多量に発生する残灰や
燃え残りを処分する埋め立て地等の不足、残灰中の有害
成分の埋め立て地での漏洩、あるいは有害なダイオキシ
ンの生成等の問題に加えて、可燃ごみ中に燃焼カロリー
の高いプラスチック廃棄物やプラスチック製ごみ袋が多
量に含まれている場合には、焼却炉の炉内温度の上昇の
原因となって焼却炉が破損する等の問題があった。However, the incineration process of combustible waste has the following problems. That is, air pollution by NOx generated during combustion, shortage of landfills for disposal of large amount of residual ash and unburned residue after incineration, leakage of harmful components in residual ash at the landfill, or harmful dioxin In addition to problems such as generation, if the combustible waste contains a large amount of plastic waste with high calorie burning and plastic waste bags, it may cause the temperature inside the incinerator to rise and the incinerator There was a problem such as damage.
【０００５】このような問題を解決する方法としては、
例えば低酸素濃度下で燃焼させてＮＯｘ量を抑制する方
法、散水しながら燃焼するなどして炉内を一定温度以下
にコントロールし温度上昇による焼却炉の破損を防止す
る方法、有害物質を含んでいる残灰を不溶化処理し、さ
らにセメント固化してから埋立処分する方法等が提案さ
れている。更に、可燃ごみと一緒に焼却処分されるプラ
スチック製ごみ袋についても、最近、従来のごみ袋に代
えて炭酸カルシウムを多量に含有させた半透明のごみ袋
を義務づけてごみの減量化と燃焼カロリーの低下を図る
自治体もでてきている。As a method for solving such a problem,
For example, a method of controlling the NOx amount by burning under a low oxygen concentration, a method of controlling the temperature inside the furnace below a certain temperature by burning while spraying water, etc. to prevent damage to the incinerator due to a temperature rise, and including harmful substances A method has been proposed in which residual ash is insolubilized, cement is further solidified, and then landfilled. Furthermore, regarding plastic garbage bags that are incinerated together with combustible garbage, recently, instead of conventional garbage bags, it is obligatory to use semi-transparent garbage bags containing a large amount of calcium carbonate to reduce the amount of waste and burn calories. Some local governments are trying to reduce
【０００６】一方、プラスチックに酸化鉄を含有させた
例としては、熱可塑性樹脂に強磁性体微粉末を分散させ
て磁気の作用によってプラスチック廃棄物を分別する方
法（特開昭５２−６８２４７号公報）やポリエチレン、
ポリプロピレンに酸化チタン、酸化アルミニウム、酸化
ニッケル及び酸化鉄を含有させて袋中の悪臭の防止を図
る方法（特開平３−２１２３５３号公報）等が提案され
ている。On the other hand, as an example in which iron oxide is contained in plastic, a method of dispersing ferromagnetic fine powder in a thermoplastic resin and separating plastic waste by the action of magnetism (Japanese Patent Laid-Open No. 52-68247). ) Or polyethylene,
A method has been proposed in which polypropylene is allowed to contain titanium oxide, aluminum oxide, nickel oxide, and iron oxide to prevent a bad odor in the bag (JP-A-3-212353).
【０００７】[0007]
【発明が解決しようとする課題】ごみの焼却にあたって
は燃焼時に発生するＮＯｘ量の抑制、焼却炉の破損の防
止と共に焼却後の燃え残りや残灰の量をできるだけ少な
くすることが現在強く要求されているところであるが、
低温、低酸素濃度条件下で焼却すれば燃焼時に発生する
ＮＯｘ量の抑制と焼却炉の破損防止には有効であるが、
燃焼効率が低下するため焼却後の残灰や燃え残りが更に
増加するという問題があった。また、炭酸カルシウムを
大量にポリエチレン樹脂に含有させた半透明のフィルム
からなるプラスチック製ごみ袋は、高温による焼却炉の
破損防止には効果があるが、逆に、焼却後の残灰量は炭
酸カルシウムの添加相当量だけ増加するという問題があ
った。In the incineration of waste, it is currently strongly required to suppress the amount of NOx generated during combustion, prevent damage to the incinerator, and minimize the amount of unburned residue and residual ash after incineration. I'm about to
Although incineration under low temperature and low oxygen concentration conditions is effective in suppressing the amount of NOx generated during combustion and preventing damage to the incinerator,
Since the combustion efficiency is lowered, there is a problem that the residual ash after burning and the unburned residue are further increased. A plastic garbage bag made of a translucent film containing a large amount of calcium carbonate in polyethylene resin is effective in preventing damage to the incinerator due to high temperatures, but conversely, the amount of residual ash after incineration is There has been a problem that the amount of calcium added increases by an amount equivalent to that.
【０００８】前出の特開昭５２−６８２４７号公報の方
法は、マグネタイト等の強磁性体微粉末をプラスチック
中に混合分散させて磁性を付与しプラスチック回収を目
的とするものであり、特開平３−２１２３５３号公報の
方法は、少なくとも酸化チタン、酸化アルミニウム、酸
化ニッケル及び酸化鉄を含むガス分解物質を、袋を構成
するポリエチレン又はポリプロピレン中に含有させるこ
とにより、袋中の生ごみ等の悪臭を防止することを目的
とするものである。The method disclosed in the above-mentioned Japanese Patent Laid-Open No. 52-68247 aims at recovering the plastic by mixing and dispersing ferromagnetic fine powder such as magnetite in the plastic to impart magnetism. According to the method of Japanese Patent Application No. 3-212353, a gas-decomposing substance containing at least titanium oxide, aluminum oxide, nickel oxide and iron oxide is contained in polyethylene or polypropylene forming a bag, thereby giving off a bad odor such as garbage in the bag. The purpose is to prevent.
【０００９】そこで、本発明は、可燃ごみと一緒に焼却
処分することにより低温、低酸素濃度条件下においても
燃焼効率を維持することができ、焼却後の燃え残りや残
灰、あるいは有害物をできるだけ少なくすることができ
るプラスチック製ごみ袋を提供することを技術的課題と
する。Therefore, according to the present invention, the combustion efficiency can be maintained even under the condition of low temperature and low oxygen concentration by incinerating together with the combustible waste, and the unburned residue and the residual ash after the incineration or the harmful substances can be maintained. It is a technical subject to provide a plastic garbage bag that can be reduced as much as possible.
【００１０】[0010]
【課題を解決するための手段】前記技術的課題は、次の
通りの本発明によって達成できる。すなわち、本発明は
紡錘状含水酸化第二鉄粒子又は表面含水量が０．０２wt
%/m2/g以上である粒状マグネタイト粒子もしくは当該両
粒子の混合物を０．１〜２０．０ｗｔ％含有する熱可塑
性樹脂フィルムからなるプラスチック製ごみ袋である。The above technical problems can be achieved by the present invention as follows. That is, according to the present invention, the spindle-shaped ferric hydroxide particles or the surface water content is 0.02 wt.
A plastic garbage bag made of a thermoplastic resin film containing 0.1 to 20.0 wt% of granular magnetite particles having a content of at least% / m 2 / g or a mixture of both particles.
【００１１】次に、本発明実施にあたっての諸条件につ
いて述べる。本発明における熱可塑性樹脂としては、通
常の押出成形に適するものであれば特に制限なく使用で
きるが、低密度ポリエチレン、直鎖状低密度ポリエチレ
ン、高密度ポリエチレン、エチレンと（メタ）アクリル
酸エステル、酢酸ビニル等の他の重合性単量体との共重
合体等のポリエチレン系樹脂が大量に入手でき、安価で
あるので好適に使用できる。また、従来のプラスチック
製ごみ袋に使用されていた再生原料ももちろん使用可能
である。Next, various conditions for carrying out the present invention will be described. The thermoplastic resin in the present invention can be used without particular limitation as long as it is suitable for ordinary extrusion molding, low density polyethylene, linear low density polyethylene, high density polyethylene, ethylene and (meth) acrylic acid ester, Polyethylene resins such as copolymers with other polymerizable monomers such as vinyl acetate are available in large quantities and are inexpensive and can be suitably used. In addition, it is of course possible to use the recycled raw materials used in the conventional plastic garbage bags.
【００１２】本発明における紡錘状含水酸化第二鉄粒子
としては、紡錘状ゲータイト（α−ＦｅＯＯＨ）粒子等
が挙げられる。この粒子は電子顕微鏡観察によれば、超
微細繊維が多数束ねられた外観を呈し、長軸径が０．０
５〜１．５μｍ、軸比（長軸径／短軸径 −以下同じで
ある。）が１〜１８であって、ＢＥＴ比表面積が３０〜
２５０m2/gである。燃焼効率を考慮すれば、長軸径が
０．１〜０．５μｍ、軸比が３〜１５であって、ＢＥＴ
比表面積が５０m2/g以上が好ましい。ＢＥＴ比表面積が
１５０m2/gより大きくなると熱可塑性樹脂との混練性が
悪くなる。Examples of the spindle-shaped ferric hydroxide particles in the present invention include spindle-shaped goethite (α-FeOOH) particles. According to electron microscopic observation, these particles have an appearance in which a large number of ultrafine fibers are bundled and have a major axis diameter of 0.0
5 to 1.5 μm, the axial ratio (major axis diameter / minor axis diameter-the same applies hereinafter) is 1 to 18, and the BET specific surface area is 30 to
It is 250 m 2 / g. Considering the combustion efficiency, the major axis diameter is 0.1 to 0.5 μm, the axial ratio is 3 to 15, and the BET
The specific surface area is preferably 50 m 2 / g or more. When the BET specific surface area is more than 150 m 2 / g, the kneadability with the thermoplastic resin is deteriorated.
【００１３】本発明におけるマグネタイト（ＦｅＯx ・
Ｆｅ2 Ｏ3 、０＜ｘ≦１）粒子は、球形、八面体、多面
体、不定形等のほぼ等方形状を呈するいわゆる粒状マグ
ネタイト粒子であり、ＢＥＴ比表面積２〜３０m2/g、平
均粒子径が０．０３〜１．０μｍであり、燃焼効率を考
慮すればＢＥＴ比表面積が４m2/g以上、平均粒子径０．
５μｍ以下が好ましい。ＢＥＴ比表面積が２５m2/gより
大きいか、平均粒子径が０．０５μｍ未満の場合には熱
可塑性樹脂との混練性が悪くなる。本発明における粒状
マグネタイト粒子の表面含水量は０．０２wt%/m2/g以上
である。０．０２wt%/m2/g未満の場合には、本発明の目
的とする燃焼効率が付与されたプラスチック製ごみ袋が
得られない。また、０．１０wt%/m2/gを超える場合に
は、粒状マグネタイト粒子の熱可塑性樹脂との混練性が
悪くなる。The magnetite ( FeO x.
Fe 2 O 3 , 0 <x ≦ 1) particles are so-called granular magnetite particles having a substantially isotropic shape such as a sphere, an octahedron, a polyhedron, and an amorphous shape, and have a BET specific surface area of 2 to 30 m 2 / g and an average particle size. The diameter is 0.03 to 1.0 μm, the BET specific surface area is 4 m 2 / g or more, and the average particle diameter is 0.
It is preferably 5 μm or less. When the BET specific surface area is larger than 25 m 2 / g or the average particle diameter is less than 0.05 μm, the kneadability with the thermoplastic resin becomes poor. The surface water content of the granular magnetite particles in the present invention is 0.02 wt% / m 2 / g or more. If the amount is less than 0.02 wt% / m 2 / g, the plastic garbage bag provided with the combustion efficiency, which is the object of the present invention, cannot be obtained. If it exceeds 0.10 wt% / m 2 / g, the kneadability of the granular magnetite particles with the thermoplastic resin will be poor.
【００１４】本発明における紡錘状含水酸化第二鉄粒子
は第一鉄塩水溶液と炭酸アルカリ水溶液等のアルカリ水
溶液との中和反応沈澱物を含む懸濁液中に２０〜７０℃
の温度範囲において温度を制御しながら空気等の酸素含
有ガスを通気することにより水溶液中から生成させるこ
とができる。The spindle-shaped ferric hydroxide particles in the present invention are 20 to 70 ° C. in a suspension containing a neutralization reaction precipitate of a ferrous salt aqueous solution and an alkaline aqueous solution such as an alkaline carbonate aqueous solution.
It can be produced from an aqueous solution by aerating an oxygen-containing gas such as air while controlling the temperature in the temperature range of.
【００１５】本発明における粒状マグネタイト粒子は第
一鉄塩水溶液と水酸化アルカリ水溶液等のアルカリ水溶
液との中和反応沈澱物を含む懸濁液中に４５〜１００℃
の温度範囲において温度を制御しながら空気等の酸素含
有ガスを通気することにより水溶液中から生成させるこ
とができる。The granular magnetite particles in the present invention are 45 to 100 ° C. in a suspension containing a neutralization reaction precipitate of a ferrous salt aqueous solution and an alkaline aqueous solution such as an alkaline hydroxide aqueous solution.
It can be produced from an aqueous solution by aerating an oxygen-containing gas such as air while controlling the temperature in the temperature range of.
【００１６】本発明においては、目的に応じて燃焼効率
を考慮し紡錘状含水酸化第二鉄粒子及び特定範囲の表面
含水量を有する粒状マグネタイト粒子（以下、粒状マグ
ネタイト粒子という。）から選ばれた１種又は２種以上
を選択して使用できる。In the present invention, spindle-shaped ferric oxide hydroxide particles and granular magnetite particles having a surface water content within a specific range (hereinafter referred to as granular magnetite particles) are selected in consideration of combustion efficiency according to the purpose. One kind or two or more kinds can be selected and used.
【００１７】なお、本発明における紡錘状含水酸化第二
鉄粒子や粒状マグネタイト粒子は、熱可塑性樹脂への分
散性を向上させる目的で、粒子表面を各種表面処理剤で
表面処理して使用することも可能である。The spindle-shaped ferric oxide hydroxide particles and granular magnetite particles in the present invention are used by surface-treating the particle surfaces with various surface treating agents for the purpose of improving dispersibility in a thermoplastic resin. Is also possible.
【００１８】本発明における熱可塑性樹脂中の紡錘状含
水酸化第二鉄粒子又は粒状マグネタイト粒子の含有量は
０．１〜２０．０ｗｔ％である。０．１ｗｔ％未満の場
合には、燃焼効率を向上させる効果が不十分であり、２
０．０ｗｔ％を超える場合には、フィルムの強度低下が
著しく、耐候性も悪くなるのでプラスチック製ごみ袋と
して好ましくない。本発明の目的である、焼却炉中の可
燃ごみ全体の燃焼効率を向上させることを考慮すると
０．５〜１０．０ｗｔ％、特に１．０〜８．０ｗｔ％が
好ましい。The content of spindle-shaped ferric oxide hydroxide particles or granular magnetite particles in the thermoplastic resin of the present invention is 0.1 to 20.0 wt%. If it is less than 0.1 wt%, the effect of improving the combustion efficiency is insufficient, and 2
If it exceeds 0.0 wt%, the strength of the film is remarkably lowered and the weather resistance is also deteriorated, which is not preferable as a plastic dust bag. Considering to improve the combustion efficiency of the entire combustible waste in the incinerator, which is the object of the present invention, 0.5 to 10.0 wt%, particularly 1.0 to 8.0 wt% is preferable.
【００１９】本発明のプラスチック製ごみ袋は、一般
に、前述したポリエチレン樹脂等の熱可塑性樹脂と紡錘
状含水酸化第二鉄粒子や粒状マグネタイト粒子とを混合
して通常の押出機等に供給し、溶融混練した後、インフ
レーション法、Ｔダイ法等の方法で厚み２０〜１００μ
ｍ程度のフィルム状に製膜し、所定形状にヒートシール
して製造することができる。The plastic waste bag of the present invention is generally prepared by mixing a thermoplastic resin such as the above-mentioned polyethylene resin with spindle-shaped ferric hydroxide oxide particles or granular magnetite particles and supplying the mixture to an ordinary extruder or the like. After melt-kneading, the thickness is 20 to 100 μm by a method such as an inflation method or a T-die method.
It can be manufactured by forming a film having a thickness of about m and heat sealing into a predetermined shape.
【００２０】本発明におけるプラスチック製ごみ袋に用
いる熱可塑性樹脂フィルムには、紡錘状含水酸化第二鉄
粒子や粒状マグネタイト粒子以外に、必要に応じて従来
周知の滑剤、ブロッキング防止剤、酸化防止剤、耐候
剤、着色剤等の各種添加剤を適宜配合したり、有機、無
機の各種充填材を併用することもできる。In addition to the spindle-shaped ferric oxide hydroxide particles and the granular magnetite particles, the thermoplastic resin film used in the plastic garbage bag of the present invention may optionally contain a conventionally known lubricant, antiblocking agent, and antioxidant. It is also possible to appropriately mix various additives such as a weathering agent and a colorant, or to use various organic and inorganic fillers in combination.
【００２１】[0021]
【作用】本発明において最も重要な点は、紡錘状含水酸
化第二鉄粒子又は特定範囲の表面含水量を有する粒状マ
グネタイト粒子もしくは当該両粒子の混合物を０．１〜
２０．０ｗｔ％含有する熱可塑性樹脂フィルムは、優れ
た燃焼効率が付与されており、低温、低酸素濃度条件下
でも、焼却後の残灰を少なくすることができるという事
実である。In the present invention, the most important point is that the spindle-shaped ferric hydroxide particles or granular magnetite particles having a surface water content in a specific range or a mixture of both particles is used in an amount of 0.1 to 0.1%.
The thermoplastic resin film containing 20.0 wt% has excellent combustion efficiency, and it is a fact that the residual ash after incineration can be reduced even under low temperature and low oxygen concentration conditions.
【００２２】この事実について本発明者は次のように考
えている。本発明における燃焼メカニズムについて、先
ず含水酸化第二鉄粒子や酸化鉄粒子の表面の鉄原子は水
が解離吸着してできる表面水酸基により安定化されてい
るが、燃焼過程における加熱によって表面水酸基間で脱
水が起こり、配位不飽和な鉄イオン及び酸素イオンが生
ずる。次に、このようにして生成した配位不飽和な活性
サイトが燃焼過程で生起する酸素吸着による酸素の活性
化、有機物からの脱水素反応等の一連の過程で触媒活性
を示して、燃焼促進に効くと考えている。The present inventor considers this fact as follows. Regarding the combustion mechanism in the present invention, first, the iron atoms on the surface of hydrous ferric oxide particles and iron oxide particles are stabilized by the surface hydroxyl groups formed by dissociative adsorption of water, but between the surface hydroxyl groups by heating in the combustion process. Dehydration occurs, producing coordinately unsaturated iron and oxygen ions. Next, the coordinatively unsaturated active sites generated in this way show catalytic activity in a series of processes such as oxygen activation due to oxygen adsorption that occurs in the combustion process, dehydrogenation reaction from organic substances, etc., and promote combustion promotion. I think it will work well.
【００２３】本発明にかかる紡錘状含水酸化第二鉄粒子
又は特定範囲の表面含水量を有する粒状マグネタイト粒
子は、粒子表面において加熱脱水による単位表面積当た
りの活性化しうる鉄−水酸基の数が多いため優れた燃焼
効率を有するものと考えている。The spindle-shaped ferric hydroxide particles or the granular magnetite particles having a specific range of surface water content according to the present invention have a large number of iron-hydroxy groups which can be activated per unit surface area by heat dehydration on the particle surface. We believe that it has excellent combustion efficiency.
【００２４】特に、紡錘状含水酸化第二鉄粒子を用いた
場合には、紡錘状（笹の葉状）含水酸化第二鉄粒子が超
微細繊維の束からなる微細構造を有していることによっ
て、上記表面含水量が大きいことはもちろん、これに加
えて、燃焼時の加熱作用により、１５０〜３５０℃の温
度範囲において結晶構造中の水酸基間からも更に脱水し
て、多孔質となって比表面積が大きくなるため活性サイ
トが多くなり、その結果必要な酸素との接触効率が著し
く大きくなり、より高い燃焼触媒作用を発揮するものと
考えている。なお、紡錘状含水酸化第二鉄粒子は１５０
〜３５０℃の温度範囲において結晶構造中の水酸基間よ
り脱水するために表面含水量の測定は不可能である。In particular, when the spindle-shaped ferric hydroxide-containing particles are used, the spindle-shaped (bamboo leaf-shaped) ferric hydroxide-containing particles have a fine structure composed of a bundle of ultrafine fibers. In addition to the large surface water content, in addition to this, the heating action during combustion further dehydrates even between the hydroxyl groups in the crystal structure in the temperature range of 150 to 350 ° C., resulting in a porous structure. It is considered that since the surface area is increased, the number of active sites is increased, and as a result, the required contact efficiency with oxygen is significantly increased, and a higher combustion catalytic action is exhibited. The spindle-shaped ferric hydroxide particles are 150
It is impossible to measure the surface water content because dehydration occurs between hydroxyl groups in the crystal structure in the temperature range of up to 350 ° C.
【００２５】本発明にかかるプラスチック製ごみ袋は、
後出実施例に示す通り、空気中における燃焼速度が３．
５分以下、好ましくは３．０分以下、完全燃焼率が９０
ｗｔ％以上、好ましくは９３ｗｔ％以上、低温燃焼性が
５２０℃以下、好ましくは４８０℃以下であって、低酸
素濃度下における燃焼速度が３．８分以下、好ましくは
３．０分以下、完全燃焼率が８８．０ｗｔ％以上、好ま
しくは９０．０ｗｔ％以上、低温燃焼性が５３５℃以
下、好ましくは５２０℃以下である。The plastic garbage bag according to the present invention is
As shown in the examples below, the burning rate in air was 3.
5 minutes or less, preferably 3.0 minutes or less, complete burning rate of 90
wt% or more, preferably 93 wt% or more, low temperature combustibility is 520 ° C. or less, preferably 480 ° C. or less, and combustion rate under low oxygen concentration is 3.8 minutes or less, preferably 3.0 minutes or less, complete The burning rate is 88.0 wt% or more, preferably 90.0 wt% or more, and the low temperature combustibility is 535 ° C. or less, preferably 520 ° C. or less.
【００２６】本発明のプラスチック製ごみ袋における紡
錘状含水酸化第二鉄粒子又は粒状マグネタイト粒子の作
用を、図１に基づき、紡錘状酸化第二鉄粒子として代表
的な紡錘状ゲータイト粒子の場合について具体的に説明
する。図１は比較例１及び実施例７のごみ袋について熱
重量分析装置で測定した場合の温度と重量減少率との関
係で燃焼状態を図示したものである。なお、図１中、縦
軸は重量減少率（％）、横軸は温度（℃）、曲線Ａは比
較例１のごみ袋（空気中）、曲線Ａ’は比較例１のごみ
袋（低酸素濃度下）、曲線Ｂは実施例７のごみ袋（空気
中）、曲線Ｂ’は実施例７のごみ袋（低酸素濃度下）を
示している。Based on FIG. 1, the action of the spindle-shaped ferric oxide hydroxide particles or granular magnetite particles in the plastic garbage bag of the present invention will be described with reference to the case of spindle-shaped goethite particles typical as spindle-shaped ferric oxide particles. This will be specifically described. FIG. 1 illustrates the combustion state of the garbage bags of Comparative Example 1 and Example 7 in terms of the relationship between the temperature and the weight reduction rate when measured with a thermogravimetric analyzer. In FIG. 1, the vertical axis represents the weight reduction rate (%), the horizontal axis represents the temperature (° C.), curve A represents the dust bag of Comparative Example 1 (in air), and curve A ′ represents the dust bag of Comparative Example 1 (low Curve B shows the garbage bag of Example 7 (in air), and curve B ′ shows the garbage bag of Example 7 (under low oxygen concentration).
【００２７】図１において、同じ空気中での燃焼である
曲線Ｂと曲線Ａを比較すると、曲線Ｂは曲線Ａよりも急
勾配であることから、燃焼速度が速く、燃焼にともなう
急激な重量減少が起こって極めて短時間で燃焼が終了し
ていることが分かる。また、空気中と低酸素濃度下での
比較では、曲線Ａに比べて曲線Ａ’の勾配が緩やかにな
っており低酸素濃度下では空気中に比べて燃焼速度がか
なり遅くなっていることが分かる。一方、曲線Ｂと曲線
Ｂ’との比較ではいずれの場合も急勾配となっており差
がないことから低酸素濃度下でも燃焼速度の低下が少な
いことが分かる。更に、曲線Ｂ及び曲線Ｂ’は急激な重
量減少が終了した時点での重量減少率が９５％以上に達
しているにもかかわらず、曲線Ａ及び曲線Ａ’の場合は
急激な重量減少が終了した時点で重量減少率が９０％未
満であり燃え残りが多くなり易いことが分かる。In FIG. 1, when curve B and curve A, which are combustion in the same air, are compared, since curve B has a steeper slope than curve A, the combustion speed is fast and the weight loss due to combustion is rapid. It can be seen that the combustion has ended in an extremely short time due to the occurrence of. Further, in the comparison between the air and the low oxygen concentration, the slope of the curve A ′ is gentler than that of the curve A, and the combustion speed is considerably slower in the low oxygen concentration than in the air. I understand. On the other hand, in comparison between the curve B and the curve B ′, there is no difference in both cases, and it can be seen that there is little decrease in the combustion speed even under a low oxygen concentration. Further, although the curve B and the curve B ′ have a weight reduction rate of 95% or more at the time when the abrupt weight reduction ends, in the case of the curve A and the curve A ′, the abrupt weight reduction ends. It can be seen that the weight loss rate is less than 90% at the time of carrying out and the unburned residue is likely to increase.
【００２８】すなわち、図１は紡錘状ゲータイト粒子を
含有しているごみ袋が、紡錘状ゲータイト粒子又は粒状
マグネタイト粒子を含有していないごみ袋に比べて、燃
焼速度が速く、低酸素濃度下でも燃焼速度がさほど遅く
ならないこと、及び燃え残りが少なくなることを示して
いる。That is, FIG. 1 shows that the garbage bag containing the spindle-shaped goethite particles has a higher burning rate than that of the garbage bag containing no spindle-shaped goethite particles or granular magnetite particles, and even under a low oxygen concentration. It shows that the burning rate does not slow down so much and there is less unburned residue.
【００２９】[0029]
【実施例】以下、実施例ならびに比較例によって本発明
を詳細に説明する。なお、以下の実施例ならびに比較例
において燃焼効率は燃焼速度、完全燃焼率、低温燃焼性
によって評価した。燃焼速度は、プラスチック製ごみ袋
から１０ｍｇを秤取り、３００ｍｌ／分の空気中又は低
酸素濃度下（空気／窒素＝１：１）において昇温速度１
０℃／分の割合で昇温させたときの重量変化を熱重量分
析装置（セイコー電子工業（株）製）で測定し、急激な
重量減少が開始した時間から急激な重量減少が終了した
時間までに要した時間（この間で燃焼が起こっていると
推定される。）で示した。The present invention will be described in detail below with reference to examples and comparative examples. In addition, in the following examples and comparative examples, the combustion efficiency was evaluated by the combustion speed, the complete combustion rate, and the low temperature combustibility. Burning rate: Weighing 10 mg from a plastic garbage bag, heating rate 1 in air at 300 ml / min or under low oxygen concentration (air / nitrogen = 1: 1)
The weight change when the temperature was raised at a rate of 0 ° C./min was measured by a thermogravimetric analyzer (manufactured by Seiko Denshi Kogyo Co., Ltd.), and the time from when the sudden weight reduction started to when the sudden weight reduction ended It is shown by the time taken until (combustion is estimated to occur during this period).
【００３０】完全燃焼率（この値が大きいほど焼却後の
燃え残りや残灰量が少ないと考えられる。）は、上記測
定において、急激な重量減少が終了した時点における可
燃成分当たりに換算した重量減少率（％）で示した。The complete burning rate (the higher this value is, the smaller the amount of unburned residue and the amount of residual ash after incineration) is, in the above measurement, the weight converted to the combustible component at the time when the rapid weight reduction is completed. The reduction rate (%) is shown.
【００３１】低温燃焼性（有機物が完全に燃え尽きてし
まうのに必要な温度と考えられる。）は、上記測定にお
いて、重量減少がこれ以上起こらなくなった時の温度で
示した。The low-temperature combustibility (which is considered to be the temperature required for the organic substances to be completely burned out) is indicated by the temperature at which the weight loss no longer occurs in the above measurement.
【００３２】粒状マグネタイト粒子の表面含水量ＳＷは
微量水分測定装置ＡＱ−６型（平沼産業（株）製）を用
い、下記の条件で測定したカールフィッシャー法水分量
（ｗｔ％）をＢＥＴ比表面積（m2/g）で除した値で示し
た（数１）。The surface water content SW of the granular magnetite particles was measured by a Karl Fischer method water content (wt%) measured under the following conditions using a trace water content measuring device AQ-6 type (manufactured by Hiranuma Sangyo Co., Ltd.) to obtain a BET specific surface area. It is shown by the value divided by (m 2 / g) (Equation 1).
【００３３】[0033]
【数１】 [Equation 1]
【００３４】実施例１〜１０、比較例１〜７ 低密度ポリエチレンに紡錘状含水酸化第二鉄粒子として
の紡錘状ゲータイト粒子又は表面含水量が０．０２wt%/
m2/g以上の粒状マグネタイト粒子を所定量添加して混合
し、インフレーション押出成形法で厚み３０μｍのチュ
ーブ状フィルムを製造した後、底部をヒートシールして
プラスチック製ごみ袋を得た。性質を表１に示す。ま
た、比較のために紡錘状ゲータイト粒子や粒状マグネタ
イト粒子を全く含有していない低密度ポリエチレンのみ
からなるごみ袋（比較例１）、低密度ポリエチレンにカ
ーボンブラック又は炭酸カルシウムを所定量添加したご
み袋（比較例２、３）、低密度ポリエチレンに表面含水
量が０．０２wt%/m2/g未満の粒状マグネタイト粒子を
３．００ｗｔ％添加したごみ袋（比較例４）、低密度ポ
リエチレンに表面含水量が０．０２wt%/m2/g以上の粒状
マグネタイト粒子を０．０８ｗｔ％添加したごみ袋（比
較例５）、低密度ポリエチレンに０．１ｗｔ％未満の紡
錘状ゲータイト粒子を添加したごみ袋（比較例６、７）
を実施例と同様の条件で製造した。性質を合わせて表１
に示す。Examples 1 to 10 and Comparative Examples 1 to 7 Spindle-shaped goethite particles as spindle-shaped ferric hydroxide particles or surface water content of low density polyethylene of 0.02 wt% /
A predetermined amount of m 2 / g or more of granular magnetite particles was added and mixed, and a tubular film having a thickness of 30 μm was manufactured by an inflation extrusion molding method, and then the bottom was heat-sealed to obtain a plastic garbage bag. The properties are shown in Table 1. For comparison, a garbage bag made of only low-density polyethylene containing no spindle-shaped goethite particles or granular magnetite particles (Comparative Example 1), a garbage bag in which a predetermined amount of carbon black or calcium carbonate is added to low-density polyethylene (Comparative Examples 2 and 3), a garbage bag in which 3.00 wt% of granular magnetite particles having a surface water content of less than 0.02 wt% / m 2 / g were added to low density polyethylene (Comparative Example 4), surface of low density polyethylene A dust bag containing 0.08 wt% of granular magnetite particles having a water content of 0.02 wt% / m 2 / g or more (Comparative Example 5), and dust containing low-density polyethylene containing less than 0.1 wt% of spindle-shaped goethite particles Bag (Comparative Examples 6 and 7)
Was manufactured under the same conditions as in the example. Table 1 together with properties
Shown in.
【００３５】[0035]
【表１】 [Table 1]
【００３６】表１において、低密度ポリエチレンのみか
らなる比較例１のプラスチック製ごみ袋に比べて、実施
例にかかる本発明のプラスチック製ごみ袋は燃焼速度、
完全燃焼率、低温燃焼性のいずれについても向上してい
ることが分かる。一方、カーボンブラックを含有する比
較例２のごみ袋は完全燃焼率は向上しているが、燃焼速
度及び低温燃焼性が比較例１に比べて低下し、炭酸カル
シウムを含有する比較例３のプラスチック製ごみ袋は低
温燃焼性は向上するが、燃焼速度が低下し、また完全燃
焼率はさほど向上しないことが分かる。表面含水率が
０．０２wt%/m2/g未満の粒状マグネタイト粒子を用いた
比較例４のプラスチック製ごみ袋は燃焼速度は向上する
が、完全燃焼率、低温燃焼性はさほど向上しない。ま
た、比較例５〜７のプラスチック製ごみ袋の場合のよう
に０．１ｗｔ％未満しか紡錘状ゲータイト粒子又は粒状
マグネタイト粒子を含有していないと燃焼速度、完全燃
焼率、低温燃焼性にあまり効果がないことが分かる。In Table 1, as compared with the plastic garbage bag of Comparative Example 1 made of only low density polyethylene, the plastic garbage bag of the present invention according to the example has a burning rate,
It can be seen that both the complete burn rate and the low temperature burnability are improved. On the other hand, in the garbage bag of Comparative Example 2 containing carbon black, the complete burning rate is improved, but the burning rate and the low temperature combustibility are lower than those of Comparative Example 1, and the plastic of Comparative Example 3 containing calcium carbonate. It can be seen that the garbage bag improves low-temperature combustibility, but decreases the combustion rate and does not significantly improve the complete combustion rate. Although the plastic garbage bag of Comparative Example 4 using the granular magnetite particles having a surface water content of less than 0.02 wt% / m 2 / g has an improved burning rate, the complete burning rate and low temperature flammability are not so improved. Further, as in the case of the plastic garbage bags of Comparative Examples 5 to 7, when the spindle-shaped goethite particles or the granular magnetite particles are contained in less than 0.1 wt%, the burning rate, complete burning rate, and low temperature flammability are very effective. You can see that there is no.
【００３７】[0037]
【効果】本発明にかかるプラスチック製ごみ袋は、燃焼
促進剤として作用する紡錘状含水酸化第二鉄粒子又は粒
状マグネタイト粒子を含有しているので、可燃ごみと一
緒に焼却炉で焼却する際に燃焼促進作用を発揮して、従
来、ＮＯｘ量の抑制と焼却炉の破損防止に有効とされて
いる低温、低酸素濃度条件下で焼却炉を運転した場合で
も、燃焼効率を低下させることなく可燃ごみを完全に燃
焼させて燃え残りや残灰の生成を少なくすることができ
るという効果を有している。また、紡錘状含水酸化第二
鉄粒子又は粒状マグネタイト粒子の含有量を多くすれ
ば、炭酸カルシウム入りのプラスチック製ごみ袋の場合
と同様に燃焼カロリーを低下させることももちろん可能
である。[Effect] Since the plastic garbage bag according to the present invention contains spindle-shaped ferric oxide hydroxide particles or granular magnetite particles that act as a combustion accelerator, when incinerating with combustible waste in an incinerator. Even if the incinerator is operated under conditions of low temperature and low oxygen concentration, which has been shown to be effective in suppressing the amount of NOx and preventing damage to the incinerator by exhibiting a combustion promoting action, it is combustible without lowering the combustion efficiency. It has the effect of completely burning the waste and reducing the generation of unburned residue and residual ash. Further, if the content of the spindle-shaped ferric oxide hydroxide particles or the granular magnetite particles is increased, it is of course possible to reduce the calories burned as in the case of a plastic garbage bag containing calcium carbonate.
【００３８】更に、含水酸化第二鉄粒子やマグネタイト
粒子の本来有している燃焼促進作用によって、可燃ごみ
（有機物）の完全燃焼、ＮＯｘ量の低減、ダイオキシン
の生成抑制等の効果が期待できるとともに、含水酸化第
二鉄粒子やマグネタイト粒子が焼却中に重金属の酸化物
と反応してフェライトを形成して残灰中の重金属の水中
へ溶解度を低下させて従来の不溶化処理が不必要になる
という効果も期待できる。Further, due to the inherent combustion promoting action of ferric oxide hydroxide particles and magnetite particles, effects such as complete combustion of combustible waste (organic matter), reduction of NOx amount, and suppression of dioxin production can be expected. It is said that ferric oxide hydroxide particles and magnetite particles react with heavy metal oxides during incineration to form ferrite and reduce the solubility of heavy metals in residual ash into water, making conventional insolubilization unnecessary. You can expect an effect.
【図１】比較例１及び実施例７のプラスチック製ごみ袋
について、空気中及び低酸素濃度下（空気／窒素＝１／
１）で熱重量分析を行った結果である。FIG. 1 shows plastic waste bags of Comparative Example 1 and Example 7 in air and under low oxygen concentration (air / nitrogen = 1 /
This is the result of thermogravimetric analysis in 1).
（Ａ） 比較例１（空気中） （Ａ’） 比較例１（低酸素濃度下） （Ｂ） 実施例７（空気中） （Ｂ’） 実施例７（低酸素濃度下） (A) Comparative Example 1 (in air) (A ') Comparative Example 1 (under low oxygen concentration) (B) Example 7 (in air) (B') Example 7 (under low oxygen concentration)
───────────────────────────────────────────────────── フロントページの続き (72)発明者 田中 住典 香川県丸亀市中津町1515番地 大倉工業株 式会社内 (72)発明者 堀石 七生 広島県大竹市明治新開１−４ 戸田工業株 式会社大竹工場内 (72)発明者 斉藤 智 広島県大竹市明治新開１−４ 戸田工業株 式会社大竹工場内 (72)発明者 横山 成男 広島県広島市中区舟入南４−１−２ 戸田 工業株式会社創造センター内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Sumitomo Tanaka 1515 Nakatsu-cho, Marugame-shi, Kagawa Okura Industrial Co., Ltd. (72) Inventor Naoki Horiishi 1-4, Meiji Shinkai, Otake-shi, Hiroshima Toda Industrial Co., Ltd. Company Otake Plant (72) Inventor Satoshi Saito 1-4 Meiji Shinkai, Otake City, Hiroshima Prefecture Toda Industry Co., Ltd. Otake Plant (72) Inventor Shigeo Yokoyama 4-1-2 Funairi Minami, Naka-ku, Hiroshima City, Hiroshima Prefecture Industry Creation Center
Claims (1)
が０．０２wt%/m2/g以上である粒状マグネタイト粒子も
しくは当該両粒子の混合物を０．１〜２０．０ｗｔ％含
有する熱可塑性樹脂フィルムからなるプラスチック製ご
み袋。1. Containing 0.1 to 20.0 wt% of spindle-shaped ferric hydroxide particles, granular magnetite particles having a surface water content of 0.02 wt% / m 2 / g or more, or a mixture of both particles. Plastic garbage bag made of thermoplastic resin film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6048395A JP2824203B2 (en) | 1994-03-18 | 1994-03-18 | Plastic trash bags |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6048395A JP2824203B2 (en) | 1994-03-18 | 1994-03-18 | Plastic trash bags |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH07257594A true JPH07257594A (en) | 1995-10-09 |
| JP2824203B2 JP2824203B2 (en) | 1998-11-11 |
Family
ID=12802116
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6048395A Expired - Lifetime JP2824203B2 (en) | 1994-03-18 | 1994-03-18 | Plastic trash bags |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2824203B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR19990041083A (en) * | 1997-11-21 | 1999-06-15 | 고오사이 아끼오 | Thermoplastic bag |
| EP1087058A2 (en) * | 1999-09-22 | 2001-03-28 | Toda Kogyo Corporation | Completely combustible paper |
| JP2002361628A (en) * | 2001-06-12 | 2002-12-18 | Toda Kogyo Corp | Method for producing plastic film and master batch pellet for plastic film |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6251897A (en) * | 1985-08-30 | 1987-03-06 | Nippon Telegr & Teleph Corp <Ntt> | Time division channel |
| JPS62117738A (en) * | 1985-11-19 | 1987-05-29 | ミナト産業株式会社 | Multilayer bag made of synthetic resin |
| JPH0496335U (en) * | 1991-01-28 | 1992-08-20 | ||
| JPH0656429A (en) * | 1992-07-31 | 1994-03-01 | Toda Kogyo Corp | Production of plate-like iron oxide particulate powder |
-
1994
- 1994-03-18 JP JP6048395A patent/JP2824203B2/en not_active Expired - Lifetime
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6251897A (en) * | 1985-08-30 | 1987-03-06 | Nippon Telegr & Teleph Corp <Ntt> | Time division channel |
| JPS62117738A (en) * | 1985-11-19 | 1987-05-29 | ミナト産業株式会社 | Multilayer bag made of synthetic resin |
| JPH0496335U (en) * | 1991-01-28 | 1992-08-20 | ||
| JPH0656429A (en) * | 1992-07-31 | 1994-03-01 | Toda Kogyo Corp | Production of plate-like iron oxide particulate powder |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR19990041083A (en) * | 1997-11-21 | 1999-06-15 | 고오사이 아끼오 | Thermoplastic bag |
| EP1087058A2 (en) * | 1999-09-22 | 2001-03-28 | Toda Kogyo Corporation | Completely combustible paper |
| EP1087058A3 (en) * | 1999-09-22 | 2002-03-06 | Toda Kogyo Corporation | Completely combustible paper |
| JP2002361628A (en) * | 2001-06-12 | 2002-12-18 | Toda Kogyo Corp | Method for producing plastic film and master batch pellet for plastic film |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2824203B2 (en) | 1998-11-11 |
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