[{"data":1,"prerenderedAt":211},["ShallowReactive",2],{"\u002Farticles\u002Fmaterial\u002Fwhat-is-inflation-method":3},{"id":4,"title":5,"body":6,"category":202,"description":203,"extension":204,"meta":205,"navigation":206,"path":207,"seo":208,"stem":209,"__hash__":210},"content\u002Farticles\u002Fmaterial\u002Fwhat-is-inflation-method.md","「インフレーション法」とは？",{"type":7,"value":8,"toc":192},"minimark",[9,13,22,27,78,81,109,112,115,136,139,159,162,178,181],[10,11,5],"h1",{"id":12},"インフレーション法とは",[14,15,16,17,21],"p",{},"「インフレーション」とは「膨らませる」という意味です。プラスチックの原料を溶かし、空気を入れて風船（チューブ状）のように膨らませながら冷やしてフィルムを作る方法を、\n",[18,19,20],"strong",{},"インフレーション法","と呼びます。",[23,24,26],"h2",{"id":25},"インフレーション法のイメージ図膨らむ","インフレーション法のイメージ図（膨らむ！）",[28,29,34,34,35,34,43,34,34,52,34,34,68,34,72],"svg",{"width":30,"height":31,"viewBox":32,"xmlns":33},"400","300","0 0 400 300","http:\u002F\u002Fwww.w3.org\u002F2000\u002Fsvg","\n  ",[36,37],"rect",{"x":38,"y":39,"width":40,"height":41,"fill":42},"150","250","100","30","#757575",[44,45,51],"text",{"x":46,"y":47,"textAnchor":48,"fontSize":49,"fill":50},"200","295","middle","10","#212121","円形ダイ (金型)",[53,54,60,61,34],"path",{"d":55,"fill":56,"stroke":57,"strokeWidth":58,"opacity":59},"M 160 250 Q 100 150 200 50 Q 300 150 240 250","#e1f5fe","#03a9f4","2","0.6","\n    ",[62,63],"animate",{"attributeName":64,"values":65,"dur":66,"repeatCount":67},"d","M 160 250 Q 100 150 200 50 Q 300 150 240 250; M 165 250 Q 110 150 200 50 Q 290 150 235 250; M 160 250 Q 100 150 200 50 Q 300 150 240 250","2s","indefinite",[69,70],"circle",{"cx":46,"cy":41,"r":49,"fill":71},"#9e9e9e",[44,73,77],{"x":46,"y":38,"textAnchor":48,"fontSize":74,"fontWeight":75,"fill":76},"14","bold","#01579b","空気で膨らませる",[23,79,80],{"id":80},"インフレーション法の仕組み",[82,83,84,91,97,103],"ol",{},[85,86,87,90],"li",{},[18,88,89],{},"原料の供給",": ポリエチレンなどのペレットを熱で溶かします。",[85,92,93,96],{},[18,94,95],{},"円形ダイから押し出し",": 溶けた樹脂を、ドーナツ状の隙間から上に押し出します。",[85,98,99,102],{},[18,100,101],{},"空気の注入",": チューブの内側に空気を吹き込み、必要なサイズまで膨らませます（この倍率をブロー比と呼びます）。",[85,104,105,108],{},[18,106,107],{},"冷却と巻き取り",": 周りから空気を当てて冷やし、最後は平らに潰してロール状に巻き取ります。",[110,111],"hr",{},[23,113,114],{"id":114},"インフレーション法の特徴",[116,117,118,124,130],"ul",{},[85,119,120,123],{},[18,121,122],{},"最初から「筒状」",":\n左右にシール（接着）がない筒状のフィルムができるため、そのまま底だけシールすればゴミ袋やレジ袋になります。",[85,125,126,129],{},[18,127,128],{},"強度が均一",":\n縦にも横にも膨らませるため、引き裂きに対する強度がバランス良く備わります。",[85,131,132,135],{},[18,133,134],{},"コストパフォーマンスが良い",":\n設備が比較的シンプルで、一度に大量のフィルムを安定して作ることができます。",[23,137,138],{"id":138},"主な用途",[116,140,141,147,153],{},[85,142,143,146],{},[18,144,145],{},"ポリエチレン製品",": レジ袋、ゴミ袋、規格袋（ポリ袋）。",[85,148,149,152],{},[18,150,151],{},"農業用フィルム",": ビニールハウスのカバーなど。",[85,154,155,158],{},[18,156,157],{},"多層フィルム",": 複数の樹脂を同時に膨らませて、機能性を持たせたフィルム。",[23,160,161],{"id":161},"まとめ",[82,163,164,169,175],{},[85,165,166,168],{},[18,167,20],{},"は、樹脂を「風船」のように膨らませて作る製法。",[85,170,171,174],{},[18,172,173],{},"レジ袋やゴミ袋","など、ポリエチレン製品の多くはこの方法で作られる。",[85,176,177],{},"筒状であることを活かして、効率よく袋を製造できるのが最大のメリットです。",[23,179,180],{"id":180},"参考文献",[116,182,183,186,189],{},[85,184,185],{},"日本包装学会 編『包装学便覧』",[85,187,188],{},"プラスチック循環利用協会「プラスチックの基礎知識」",[85,190,191],{},"フィルム成形機メーカー各社の技術資料",{"title":193,"searchDepth":194,"depth":194,"links":195},"",2,[196,197,198,199,200,201],{"id":25,"depth":194,"text":26},{"id":80,"depth":194,"text":80},{"id":114,"depth":194,"text":114},{"id":138,"depth":194,"text":138},{"id":161,"depth":194,"text":161},{"id":180,"depth":194,"text":180},"素材","フィルムを風船のように膨らませて作る「インフレーション法」。その仕組みと、ポリ袋やゴミ袋に適している理由を解説します。","md",{},true,"\u002Farticles\u002Fmaterial\u002Fwhat-is-inflation-method",{"title":5,"description":203},"articles\u002Fmaterial\u002Fwhat-is-inflation-method","f2VgkVg85MUq1F4aZ8CR_sEkxJ5uBoFY3jNKBEJ-tMw",1780414755606]